Method and apparatus for RAT dependent positioning integrity

Abstract

Embodiments of the present disclosure relate to methods and devices for radio access technology (RAT) dependent positioning integrity. In accordance with an embodiment of the present disclosure, a user equipment (UE) may comprise: a processor configured to obtain integrity assistance data for the UE; a transmitter, coupled to the processor, and configured to transmit the integrity assistance data of the UE to a location management function (LMF); and a receiver, wherein the receiver is coupled to the processor.

Description

Technical Field

[0001] Embodiments of the present application relate generally to wireless communication techniques, and more particularly to methods and apparatus for radio access technology (RAT) dependent positioning integrity. Background Art

[0002] Positioning integrity refers to the degree of trust in the accuracy of positioning-related data provided by the positioning system, and the ability to provide timely and effective warnings to the location service (LCS) client when the positioning system does not meet the expected operating conditions. The concept of positioning integrity has been introduced in the 3rd Generation Partnership Project (3GPP) Rel-17 and supports Global Navigation Satellite System (GNSS) positioning. However, the details of the integrity support for RAT-dependent positioning have not been studied. Summary of the invention

[0003] The embodiments of the present application at least provide a technical solution for RAT-dependent positioning integrity.

[0004] According to some embodiments of the present application, a user equipment (UE) may include: a processor, which is configured to obtain integrity assistance data of the UE; and a transmitter, which is coupled to the processor and configured to transmit the integrity assistance data of the UE to a location management function (LMF); and a receiver, which is coupled to the processor.

[0005] In some embodiments of the present application, the integrity assistance data includes at least one of the following: integrity assistance information, the integrity assistance information including at least one of an error source or UE assistance information; or predicted integrity assistance information.

[0006] In some embodiments of the present application, the UE auxiliary information includes at least one of the following: the type of the UE; the expected state of the UE performing positioning; a reference signal received power (RSRP) value measured by the UE; an indication of the location range of the UE; or the synchronization state of the UE.

[0007] In some embodiments of the present application, the transmitter is further configured to transmit the integrity assistance information to a network data analysis function (NWDAF), and the receiver is configured to receive the predicted integrity assistance information based on the integrity assistance information from the NWDAF.

[0008] In some embodiments of the present application, the processor is further configured to determine the positioning method determined by the LMF based on the predicted integrity assistance information to obtain a determination result; and the transmitter is further configured to transmit the determination result to the LMF.

[0009] In some embodiments of the present application, the integrity assistance data of the UE is transmitted to the LMF in a location request message or an event report message.

[0010] In some embodiments of the present application, the transmitter is further configured to: transmit an indication in a location request message or an event report message to indicate whether the integrity assistance data of the UE will be transmitted; and the integrity assistance data of the UE is transmitted to the LMF in a Long Term Evolution (LTE) Positioning Protocol (LPP) message in response to the indication indicating that the integrity assistance data of the UE will be transmitted.

[0011] In some embodiments of the present application, the transmitter is further configured to transmit an indication in a location request message or an event report message to indicate whether the UE has the ability to transmit the integrity assistance data and whether the UE has the integrity assistance data that needs to be transmitted to the LMF; the receiver is configured to receive an integrity assistance data request from the LMF in response to the indication indicating that the UE has the ability to transmit the integrity assistance data and the UE has the integrity assistance data that needs to be transmitted to the LMF; and the integrity assistance data of the UE is transmitted to the LMF in response to the integrity assistance data request.

[0012] In some embodiments of the present application, the receiver is configured to receive an integrity assistance data request from the LMF; and when the UE has the ability to transmit the integrity assistance data and the UE has the integrity assistance data that needs to be transmitted to the LMF, the integrity assistance data of the UE is transmitted to the LMF in response to the integrity assistance data request.

[0013] In some embodiments of the present application, the receiver is configured to receive a request message from the LMF requesting the capabilities of the UE; and the integrity assistance data of the UE is transmitted to the LMF in a response message providing the capabilities of the UE in response to the request message.

[0014] In some embodiments of the present application, the receiver is configured to receive a request message from the LMF requesting the capability of the UE; the transmitter is further configured to: transmit a response message providing the capability of the UE to the LMF in response to the request message, wherein the response message includes an indication indicating whether the integrity assistance data of the UE will be transmitted; and the integrity assistance data of the UE is transmitted to the LMF in an LPP message in response to the indication indicating that the integrity assistance data of the UE will be transmitted.

[0015] In some embodiments of the present application, the receiver is configured to receive a request message from the LMF requesting the capability of the UE, wherein the request message includes an integrity assistance data request. The integrity assistance data of the UE is transmitted to the LMF in a response message providing the capability of the UE or in a separate LPP message in response to the integrity assistance data request, if the UE has the capability to transmit the integrity assistance data and the UE has the integrity assistance data that needs to be transmitted to the LMF.

[0016] According to some other embodiments of the present application, a radio access network (RAN) node may include: a receiver, configured to receive an indication indicating that the RAN node transmits integrity assistance data of the RAN node to an LMF; a transmitter, configured to transmit the integrity assistance data of the RAN node to the LMF in response to the indication if the RAN node has the ability to transmit the integrity assistance data and the RAN node has the integrity assistance data that needs to be transmitted to the LMF; and a processor, coupled to the transmitter and the receiver.

[0017] In some embodiments of the present application, the integrity assistance data includes at least one of the following: integrity assistance information, the integrity assistance information including an error source; or predicted integrity assistance information.

[0018] In some embodiments of the present application, the transmitter is further configured to transmit the integrity assistance information to a NWDAF, and the receiver is further configured to receive the predicted integrity assistance information based on the integrity assistance information from the NWDAF.

[0019] In some embodiments of the present application, the processor is further configured to determine the positioning method determined by the LMF based on the predicted integrity assistance information to obtain a determination result; and the transmitter is further configured to transmit the determination result to the LMF.

[0020] In some embodiments of the present application, the indication is an integrity assistance data indication received from the UE or an integrity assistance data request received from the LMF, and the integrity assistance data of the RAN node is transmitted in a New Radio (NR) Positioning Protocol A (NRPPa) message.

[0021] According to some other embodiments of the present application, an LMF may include: a receiver, the receiver being configured to receive at least one of the following: first integrity assistance data from the UE; second integrity assistance data from the RAN node; or predicted integrity assistance information from the NWDAF; a processor, the processor being coupled to the receiver and configured to determine a RAT-dependent positioning method based on at least one of the following: the first integrity assistance data, the second integrity assistance data, or the predicted integrity assistance information; and a transmitter, the transmitter being coupled to the processor.

[0022] In some embodiments of the present application, the first integrity assistance data includes at least one of the following: first integrity assistance information, the first integrity assistance information including at least one of an error source or UE assistance information; or first predicted integrity assistance information based on the first integrity assistance information.

[0023] In some embodiments of the present application, the UE auxiliary information includes at least one of the following: the type of the UE; the expected state of the UE performing positioning; the RSRP value measured by the UE; an indication of the location range of the UE; or the synchronization state of the UE.

[0024] In some embodiments of the present application, the second integrity assistance data includes at least one of the following: second integrity assistance information, the second integrity assistance information including an error source; or second predicted integrity assistance information based on the second integrity assistance information.

[0025] In some embodiments of the present application, the predicted integrity assistance information is based on at least one of the following: first integrity assistance information of the UE, the first integrity assistance information including at least one of an error source or UE assistance information; or second integrity assistance information of the RAN node, the second integrity assistance information including an error source.

[0026] In some embodiments of the present application, the first integrity assistance data is received in a location request message or an event report message.

[0027] In some embodiments of the present application, the receiver is further configured to: receive an indication in a location request message or an event report message indicating whether the first integrity assistance data will be transmitted from the UE; and the first integrity assistance data is received from the UE in an LPP message in response to the indication indicating that the first integrity assistance data will be transmitted.

[0028] In some embodiments of the present application, the receiver is further configured to receive an indication from the UE in a location request message or an event report message indicating whether the UE has the ability to transmit the first integrity assistance data and whether the UE has the first integrity assistance data that needs to be transmitted to the LMF; the transmitter is further configured to transmit an integrity assistance data request to the UE in response to the indication indicating that the UE has the ability to transmit the first integrity assistance data and the UE has the first integrity assistance data that needs to be transmitted to the LMF; and the first integrity assistance data is received from the UE in response to the integrity assistance data request.

[0029] In some embodiments of the present application, the receiver is further configured to receive a location request message; the transmitter is further configured to transmit an integrity assistance data request to the UE after receiving the location request message; and the first integrity assistance data is received from the UE in response to the integrity assistance data request.

[0030] In some embodiments of the present application, the transmitter is further configured to transmit a request message to the UE requesting the capability of the UE; and the first integrity assistance data is received from the UE in a response message providing the capability of the UE in response to the request message.

[0031] In some embodiments of the present application, the transmitter is further configured to transmit a request message requesting the capability of the UE to the UE; the receiver is further configured to: receive a response message from the UE providing the capability of the UE in response to the request message, wherein the response message includes an indication indicating whether the first integrity assistance data of the UE will be transmitted; and the first integrity assistance data is received from the UE in an LPP message in response to the indication indicating that the first integrity assistance data of the UE will be transmitted.

[0032] In some embodiments of the present application, the transmitter is further configured to transmit a request message requesting the capability of the UE to the UE, wherein the request message includes an integrity assistance data request. The first integrity assistance data is received from the UE in a response message providing the capability of the UE or in a separate LPP message in response to the integrity assistance data request.

[0033] In some embodiments of the present application, the second integrity assistance data of the RAN node is received in an NRPPa message.

[0034] In some embodiments of the present application, the transmitter is further configured to transmit an integrity assistance data request to the RAN node; and the second integrity assistance data is received from the RAN node in response to the integrity assistance data request.

[0035] According to some other embodiments of the present application, a method performed by a UE may include: obtaining integrity assistance data of the UE; and transmitting the integrity assistance data of the UE to an LMF.

[0036] According to some other embodiments of the present application, a method performed by a RAN node may include: receiving an indication indicating that the RAN node transmits integrity assistance data of the RAN node to an LMF; and transmitting the integrity assistance data of the RAN node to the LMF in response to the indication if the RAN node has the ability to transmit the integrity assistance data and the RAN node has the integrity assistance data that needs to be transmitted to the LMF.

[0037] According to some other embodiments of the present application, a method performed by an LMF may include: a receiver, receiving at least one of the following: first integrity assistance data from a UE; second integrity assistance data from a RAN node; or predicted integrity assistance information from an NWDAF; and determining a RAT-dependent positioning method based on at least one of the following: the first integrity assistance data, the second integrity assistance data, or the predicted integrity assistance information. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to describe the manner in which the advantages and features of the present application can be obtained, the description of the present application is presented by referring to the specific embodiments of the present application shown in the accompanying drawings. These drawings depict only exemplary embodiments of the present application and therefore should not be considered to limit the scope of the present disclosure.

[0039] Figure 1 is a schematic diagram showing an exemplary wireless communication system according to some embodiments of the present application;

[0040] Figure 2 A flowchart of an exemplary method for determining a RAT-dependent positioning method according to some embodiments of the present application is shown;

[0041] Figure 3 A flowchart of another exemplary method for determining a RAT-dependent positioning method according to some other embodiments of the present application is shown; and

[0042] Figure 4 A simplified block diagram of an exemplary device for RAT-dependent positioning integrity according to some embodiments of the present application is shown. DETAILED DESCRIPTION

[0043] The detailed description of the accompanying drawings is intended as a description of the currently preferred embodiments of the present application and is not intended to represent the only form in which the present application can be practiced. It should be understood that the same or equivalent functions can be accomplished by different embodiments intended to be included in the spirit and scope of the present application.

[0044] Although the operations are depicted in a particular order in the accompanying drawings, it will be readily appreciated by those skilled in the art that these operations do not need to be performed in the particular order or sequential order shown, or in all the operations to be performed, in order to achieve a desired result, one or more operations may sometimes be skipped. Further, the accompanying drawings may schematically depict one or more example processes in the form of a flow chart. However, other operations not depicted may be incorporated into the example processes of the schematic illustration. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the operations shown. In some cases, multitasking and parallel processing may be advantageous.

[0045] Reference will now be made in detail to some embodiments of the present application, examples of which are shown in the accompanying drawings. For ease of understanding, embodiments are provided in specific network architectures and new service scenarios, such as 3GPP 5G (i.e., NR), 3GPP LTE, and the like. It is well known to those skilled in the art that, with the development of network architectures and new service scenarios, the embodiments of the present application are also applicable to similar technical problems; and in addition, the terms cited in the present application may change, which should not affect the principles of the present application.

[0046] Figure 1 is a schematic diagram showing an exemplary wireless communication system 100 according to some embodiments of the present application.

[0047] like Figure 1 As shown, the wireless communication system 100 includes at least one RAN node 101, at least one UE (eg, UE 102a and UE 102b), and at least one LMF 103. Although for the purpose of illustration, Figure 1 1 , one RAN node, two UEs, and one LMF are depicted. It is contemplated that the wireless communication system 100 may include any number of RAN nodes, UEs, and LMFs.

[0048] The wireless communication system 100 is compatible with any type of network capable of sending and receiving wireless communication signals. For example, the wireless communication system 100 is compatible with wireless communication networks, cellular telephone networks, networks based on time division multiple access (TDMA), networks based on code division multiple access (CDMA), networks based on orthogonal frequency division multiple access (OFDMA), LTE networks, networks based on 3GPP, 3GPP5G networks, satellite communication networks, high altitude platform networks, and / or other communication networks.

[0049] The RAN node 101 may be an access point, an access terminal, a transmission reception point (TRP), a base station, a base station (BS), a next generation (NG) RAN node, a node B, an enhanced node B (eNB), a gNB, a home node B, a relay node or a device, or described using other terms used in the art. The RAN node 101 is typically part of a RAN, which may include a controller communicatively coupled to the RAN node 101.

[0050] According to some embodiments of the present application, UE 102a and UE 102b may include vehicle UE (VUE) and / or energy-saving UE (also known as power-sensitive UE). Energy-saving UE may include vulnerable road users (VRU) that are sensitive to power consumption, public safety UE (PS-UE) and / or commercial sidelink UE (CS-UE). In an embodiment of the present application, VRU may include pedestrian UE (P-UE), cyclist UE, wheelchair UE or other UE that needs energy saving compared to VUE. In an embodiment of the present application, UE 102a may be an energy-saving UE, and UE 102b may be a VUE. In another embodiment of the present application, both UE 102a and UE 102b may be VUE or energy-saving UE.

[0051] According to some other embodiments of the present application, UE 102a and UE 102b may include computing devices such as desktop computers, laptop computers, personal digital assistants (PDAs), tablet computers, smart TVs (e.g., TVs connected to the Internet), set-top boxes, game consoles, security systems (including security cameras), vehicle-mounted computers, network devices (e.g., routers, switches, and modems), etc.

[0052] According to some other embodiments of the present application, UE 102a and UE 102b may include a portable wireless communication device, a smart phone, a cellular phone, a flip phone, a device with a subscriber identity module, a personal computer, a selective call receiver, or any other device capable of sending and receiving communication signals on a wireless network.

[0053] According to some other embodiments of the present application, UE 102a and UE 102b may include wearable devices such as smart watches, fitness bands, optical head-mounted displays, etc.

[0054] In addition, UE may be referred to as a subscriber unit, handset, mobile station, user, terminal, mobile terminal, wireless terminal, fixed terminal, subscriber station, user terminal or device, or described using other terms used in the art.

[0055] Figure 1 In the embodiment of the present invention, both UE 102a and UE 102b are in the coverage area of ​​the RAN node 101 and can transmit information or data to the RAN node 101 and receive control information or data from the RAN node 101, for example, via an LTE or NR Uu interface.

[0056] LMF 103 (also referred to as LMF entity) may refer to a network element or network entity for supporting location services, which may be deployed in a core network (CN) or RAN of the wireless communication system 100. LMF 103 may communicate with RAN node 101 via NRPPa signaling, and may communicate with UE 102a or UE 102b via LPP signaling.

[0057] When a location service request is initiated by or occurs at a UE, the UE (referred to as a target UE or LCS target UE) needs to know its own location. When the target UE is within the coverage area of ​​the BS or network (i.e., within the coverage area), the target UE can obtain positioning information from the BS or LMF, which is referred to as Uu positioning or NR Uu positioning. NR Uu positioning may include RAT-dependent positioning. RAT-dependent positioning may mean that the positioning of the UE is calculated based on the measurement results of reference signals (e.g., sounding reference signals (SRS), positioning reference signals (PRS) and / or other reference signals) in the Uu interface.

[0058] Positioning integrity refers to the degree of trust in the accuracy of positioning-related data provided by the positioning system, and the ability to provide timely and effective warnings to LCS clients when the positioning system does not meet the expected operating conditions. For example, each time a positioning is provided, positioning integrity can be used to quantify the trust in the provided positioning. The concept of positioning integrity has been introduced in 3GPP Rel-17 and supports GNSS positioning. However, there is currently no research on the integrity of RAT-dependent positioning.

[0059] For example, in the current RAT-dependent positioning procedure, when the LMF receives the capability information of the UE, the RAT-dependent positioning method of the UE can be determined based on the capability information. The RAT-dependent positioning method can be one of the following: a new radio enhanced cell identity (NR-ECID) positioning method, a multi-round trip time (multi-RTT) positioning method, a downlink departure angle (DL-AoD) positioning method, a downlink arrival time difference (DL-TDOA) positioning method, an uplink arrival time difference (UL-TDOA) positioning method, an uplink arrival angle (UL-AoA) positioning method, etc. The capability information may include: the ability of the UE to support different positioning methods defined for the LPP, different aspects of a specific positioning method, and common features that are not specific to only one positioning method (for example, the ability to handle multiple LPP transactions). That is, the above-mentioned capability information does not include information related to integrity, which may reduce the trust in the accuracy of positioning. In order to ensure the feasibility of the positioning architecture and ensure the use of an optimized RAT-dependent positioning method, integrity assistance data may need to be considered when the LMF determines the RAT-dependent positioning method.

[0060] In view of the above, the embodiments of the present application propose solutions for RAT-dependent positioning integrity. For example, the embodiments of the present application propose solutions for the content of integrity assistance data for determining the RAT-dependent positioning method, and the signaling transmission procedure of the integrity assistance data. The solutions in the embodiments of the present application can improve the positioning integrity of the RAT-dependent positioning method by considering the integrity assistance data when determining the RAT-dependent positioning method. More details about the embodiments of the present application will be described in the text below in conjunction with the accompanying drawings.

[0061] Unlike GNSS positioning in which the UE is equipped with a GNSS receiver and integrity-related information is only transmitted between the UE and the LMF, the RAT-dependent positioning technology can utilize one or more positioning methods involving three entities, namely, the UE, the RAN node (e.g., BS, TRP, etc.), and the LMF to perform measurements of different positioning metrics. Each entity may generate an error source that may affect the integrity performance. In view of this, the following embodiments of the present application provide integrity assistance data on the UE side and the RAN node side, and a signaling procedure for transmitting the integrity assistance data from the UE to the LMF and transmitting the integrity assistance data from the RAN node to the LMF.

[0062] Figure 2 A flowchart of an exemplary method for determining a RAT-dependent positioning method according to some embodiments of the present application is shown. Figure 2 The method shown in the figure can be performed by at least three network entities, such as UE, RAN node (e.g., BS, TRP, etc.) and LMF. Although the method is shown at the system level, those skilled in the art can understand that the method implemented in the three network entities can be implemented separately and can be incorporated into other devices with similar functions.

[0063] exist Figure 2 In an embodiment of the present invention, integrity assistance data from the UE and RAN nodes may be transmitted to the LMF during the location request procedure. Figure 2 The flowchart shown in FIG. 2 may include a procedure 200a for transmitting integrity assistance data of a UE to an LMF and a procedure 200b for transmitting integrity assistance data of a RAN node to an LMF. Figure 2 Both the process 200a and the process 200b are shown, but this does not mean that the two processes must occur at the same time. It is contemplated that in various embodiments of the present application, only one or both of the process 200a and the process 200b may occur.

[0064] refer to Figure 2 , procedure 200a may include steps 201 and 202. In step 201, a UE (eg, Figure 1 The UE 102a or UE 102b) in the system may obtain the UE's integrity assistance data (also referred to as UE-side integrity assistance data).

[0065] In some embodiments of the present application, the integrity assistance data of the UE may include at least one of the following: integrity assistance information or predicted integrity assistance information. The integrity assistance information may include at least one of the following: an error source or UE assistance information. The predicted integrity assistance information may be based on the integrity assistance information described below.

[0066] The error sources may include at least one of the following:

[0067] ● a line-of-sight (LoS) indicator generated by the UE or a non-line-of-sight (NLoS) indicator generated by the UE;

[0068] UE capabilities;

[0069] The geometric dilution of precision (GDOP) of the UE’s location;

[0070] UE speed;

[0071] UE mobility;

[0072] Error sources for timing-based positioning methods, including at least one of the following: measurement errors of the UE (e.g., time of arrival (ToA), receiver (Rx)-transmitter (Tx) timing difference, etc.), error sources caused by multipath or NLoS channels or radio propagation environment, timing errors of the UE, etc.;

[0073] ● Error sources of angle-based positioning methods, including at least one of the following: measurement errors of the UE (e.g., angle of arrival (AoA), RSRP, etc.), error sources caused by multipath or NLoS channels or radio propagation environment, etc.; or

[0074] ●Other error sources on the UE side that may affect the integrity performance.

[0075] The UE assistance information may include at least one of the following:

[0076] ● UE type. For example, the UE type may indicate at least one of the following: low power UE, low power high accuracy positioning (LPHAP) UE, narrowband Internet of Things (NB-IoT) UE, etc.;

[0077] ● The expected state of the UE performing positioning. For example, the expected state may be a radio resource control (RRC) connected state, an RRC inactive state, or an RRC idle state;

[0078] RSRP value measured by the UE;

[0079] ● An indication indicating the location range of the UE. In some embodiments, the location range of the UE may be a cell center or a cell edge. In some embodiments, the indication may be a bitmap of the location of the UE in the serving cell. For example, assuming that the coverage of the serving cell is divided into eight location ranges, the bitmap may include eight bits, each of which may correspond to one of the eight location ranges and indicate whether the UE is located within the corresponding location range. For example, the bitmap may be "00001000", which indicates that the UE is located within the fifth location range of the serving cell. In some embodiments, the indication may be an RSRP value of the serving cell measured by the UE, or a result obtained by comparing the RSRP value with a threshold; or

[0080] ● The synchronization state of the UE. For example, the synchronization state may be a synchronization indication, an out-of-sync indication, a timing advance (TA) configuration of the UE, etc.

[0081] In some embodiments of the present application, an artificial intelligence (AI) model may be used additionally or alternatively to generate integrity assistance data on the UE side. In such embodiments, the UE may transmit the above integrity assistance information to the NWDAF ( Figure 2 ). After receiving the integrity assistance information of the UE, the NWDAF (e.g., an "analyzer" within the NWDAF) may use its trained AI model to predict the integrity assistance information of the UE and output the predicted integrity assistance information of the UE. For example, the predicted integrity assistance information may include the error probability of the integrity assistance information with a time tag. In another example, the predicted integrity assistance information may include any other information obtained based on the integrity assistance information of the UE.

[0082] After generating the predicted integrity assistance information of the UE, in one embodiment, the NWDAF may transmit the predicted integrity assistance information of the UE to the LMF, thereby assisting the LMF in making a positioning method decision (this will be described below).

[0083] In another embodiment, the NWDAF may transmit the predicted integrity assistance information of the UE to the UE. After receiving the predicted integrity assistance information, in some instances, the UE may transmit the predicted integrity assistance information to the LMF. In other words, in such instances, the integrity assistance data transmitted from the UE to the LMF may include the predicted integrity assistance information. In some other instances, the UE may not transmit the predicted integrity assistance information to the LMF. In some embodiments, the UE may use the predicted integrity assistance information to determine the positioning method determined by the LMF. For example, the UE may determine the positioning method determined by the LMF based on the predicted integrity assistance information to obtain a judgment result. In some embodiments, the UE may transmit the judgment result to the LMF.

[0084] After obtaining the integrity assistance data in step 201, the UE may transmit the integrity assistance data of the UE to the LMF in step 202. The following three options may provide different operations in step 202.

[0085] Option 1

[0086] In some embodiments of Option 1, the integrity assistance data may be transmitted to the LMF in a location request message in step 202. Such embodiments may support a mobile originated location request (MO-LR) location service. For example, for a MO-LR location service, the UE may send a request for location related information of the UE to a serving public land mobile network (PLMN).

[0087] In one embodiment, the location request message may be based on the location request message as specified in TS23.273 and may be referred to as an "enhanced location request message". In such an embodiment, the enhanced location request message may include the information in the location request message as specified in TS23.273, and the integrity assistance data of the UE as described above.

[0088] In some other embodiments of Option 1, in step 202, the integrity assistance data may be transmitted to the LMF in an event report message. Such embodiments may support delayed mobile terminated location request (MT-LR) location service. For example, for delayed MT-LR location service, the LCS client or application function (AF) may send a location request for a target UE (or a group of target UEs) to the PLMN and expect to receive a response containing an event occurrence indication and location information (if requested for the target UE (or a group of target UEs)) at a future time (or multiple times), and the response may be associated with a specific event associated with the target UE (or a group of target UEs).

[0089] In one embodiment, the event report message may be based on the event report message as specified in TS23.273 and may be referred to as an "enhanced event report message". In such an embodiment, the enhanced event report message may include the information in the event report message as specified in TS23.273, and the integrity assistance data of the UE as described above.

[0090] Option 2

[0091] In Option 2, step 202 may further include two sub-steps, namely sub-step 1 and sub-step 2 ( Figure 2 not shown).

[0092] In some embodiments of Option 2, in sub-step 1, the UE may transmit a location request message to the LMF. The location request message may include an indication (or flag) indicating whether the integrity assistance data of the UE will be transmitted. Such an embodiment may support MO-LR location services. For example, the indication may be a 1-bit indication, where a value of "1" indicates that the integrity assistance data of the UE will be transmitted to the LMF, and a value of "0" indicates that the integrity assistance data of the UE will not be transmitted to the LMF, or vice versa.

[0093] In an embodiment, the location request message may be based on the location request message as specified in TS23.273 and may be referred to as an "enhanced location request message." In such an embodiment, the enhanced location request message may include information in the location request message as specified in TS23.273, as well as indications as described above.

[0094] In response to the indication that the integrity assistance data of the UE is to be transmitted, in sub-step 2, the UE may transmit an LPP message (eg, an LPP protocol data unit (PDU) message) including the integrity assistance data to the LMF.

[0095] In some other embodiments of Option 2, in sub-step 1, the UE may transmit an event report message to the LMF. The event report message may include an indication (or flag) indicating whether the integrity assistance data of the UE will be transmitted. Such an embodiment may support delayed MT-LR location services. For example, the indication may be a 1-bit indication, where a value of "1" indicates that the integrity assistance data of the UE will be transmitted to the LMF, and a value of "0" indicates that the integrity assistance data of the UE will not be transmitted to the LMF, or vice versa.

[0096] In an embodiment, the event report message may be based on the event report message as specified in TS23.273 and may be referred to as an "enhanced event report message". In such an embodiment, the enhanced event report message may include information in the event report message as specified in TS23.273, as well as indications as described above.

[0097] In response to the indication that the integrity assistance data of the UE is to be transmitted, in sub-step 2, the UE may transmit an LPP message (eg, an LPP PDU message) including the integrity assistance data to the LMF.

[0098] Option 3

[0099] In Option 3, the integrity assistance data of the UE may be included in the Integrity Assistance Data Response message. Option 3 may support MO-LR, MT-LR and delayed MT-LR location services.

[0100] In some embodiments of Option 3, for MO-LR location services, step 202 may further include three sub-steps: Figure 2 (not shown in the figure). Specifically, in the first sub-step, the UE may transmit a location request message to the LMF. The location request message may include an indication (or flag) indicating whether the UE has the capability to transmit integrity assistance data and whether the UE has integrity assistance data that needs to be transmitted to the LMF. For example, the indication may be a 1-bit indication, wherein a value of "1" indicates that the UE has the capability to transmit integrity assistance data and the UE has integrity assistance data that needs to be transmitted to the LMF, and a value of "0" indicates that the UE does not have the capability to transmit integrity assistance data, or the UE does not have integrity assistance data that needs to be transmitted to the LMF, or vice versa.

[0101] In an embodiment, the location request message may be based on the location request message as specified in TS23.273 and may be referred to as an "enhanced location request message." In such an embodiment, the enhanced location request message may include information in the location request message as specified in TS23.273, as well as indications as described above.

[0102] After receiving the location request message, in a second sub-step, in response to an indication that the UE has the capability to transmit integrity assistance data and the UE has integrity assistance data that needs to be transmitted to the LMF, the LMF may transmit an integrity assistance data request to the UE requesting the integrity assistance data. In one embodiment, the integrity assistance data request may be included in an LPP message (e.g., an LPP PDU message).

[0103] In a third sub-step, the UE may transmit integrity assistance data to the LMF in response to the integrity assistance data request. In one embodiment, the integrity assistance data may be included in an integrity assistance data response. In one embodiment, the integrity assistance data response may be included in an LPP message (e.g., an LPP PDU message).

[0104] In some other embodiments of Option 3, for delayed MT-LR location service, step 202 may further include three sub-steps: Figure 2 (not shown in the figure). Specifically, in the first sub-step, the UE may transmit an event report message to the LMF. The event report message may include an indication (or flag) of whether the UE has the capability to transmit integrity assistance data and whether the UE has integrity assistance data that needs to be transmitted to the LMF. All definitions provided above regarding indications for MO-LR location services in Option 3 may also apply here.

[0105] In an embodiment, the event report message may be based on the event report message as specified in TS23.273 and may be referred to as an "enhanced event report message". In such an embodiment, the enhanced event report message may include information in the event report message as specified in TS23.273, as well as indications as described above.

[0106] For delayed MT-LR location service, the second sub-step and the third sub-step of step 202 may be the same as the sub-steps of the MO-LR location service in Option 3.

[0107] In some other embodiments of Option 3, for MT-LR location service, step 202 may further include two sub-steps: Figure 2 Specifically, after the LMF receives a location request message from the core network (e.g., access and mobility management function (AMF)), in the first sub-step of step 202, the LMF may transmit an integrity assistance data request to the UE. In one embodiment, the integrity assistance data request may be included in an LPP message (e.g., an LPP PDU message).

[0108] In response to the integrity assistance data request, in the second sub-step of step 202, the UE may transmit the integrity assistance data to the LMF if the UE has the capability to transmit the integrity assistance data and the UE has the integrity assistance data that needs to be transmitted to the LMF. In one embodiment, the integrity assistance data may be included in an integrity assistance data response. In one embodiment, the integrity assistance data response may be included in an LPP message (e.g., an LPP PDU message). Otherwise, the UE may transmit an indication indicating "error" to the LMF. For example, the indication may be an LPP message including a field indicating "error". Thereafter, the UE and the LMF may continue with the conventional LPP transmission procedure for positioning.

[0109] As described above, procedure 200b may be used to transmit integrity assistance data of a RAN node to an LMF. Transmission of integrity assistance data of a RAN node to an LMF may be triggered by a UE or an LMF. Due to the different network nodes used to trigger the above transmission, the operations in procedure 200b may be different.

[0110] According to some embodiments of the present application, the transmission of integrity assistance data of the RAN node to the LMF may be triggered by the UE. Such an embodiment may support MO-LR location services. In such an embodiment, procedure 200b may include steps 203 and 204.

[0111] In step 203, the UE may transmit an indication to the LMF indicating that the RAN node will transmit integrity assistance data of the RAN node. In one embodiment, the indication is an integrity assistance data indication. Step 203 may occur before, after, or simultaneously with step 202.

[0112] In the case where the RAN node has the capability to transmit integrity assistance data and the RAN node has integrity assistance data that needs to be transmitted to the LMF, in step 204, the RAN node may transmit the integrity assistance data of the RAN node to the LMF in response to the indication received in step 203. In one embodiment, the integrity assistance data of the RAN node may be transmitted in an NRPPa message.

[0113] The integrity assistance data of the RAN node (also referred to as integrity assistance data on the RAN node side) may include at least one of the following: integrity assistance information of the RAN node or predicted integrity assistance information of the RAN node. The integrity assistance information of the RAN node may include an error source of the RAN node. The predicted integrity assistance information of the RAN node may be based on the integrity assistance information of the RAN node, which will be described below.

[0114] The error sources may include at least one of the following:

[0115] The coordinates of the RAN nodes;

[0116] Antenna information of RAN nodes, such as antenna height, antenna calibration, etc.

[0117] RAN node beam information, e.g. beam width, beam pattern, etc.

[0118] GDOP of RAN node locations;

[0119] Error sources for timing-based positioning methods, including at least one of the following: measurement errors of RAN nodes (e.g., ToA, Rx-Tx timing difference, etc.), error sources caused by multipath or NLoS channels or radio propagation environment, timing errors of RAN nodes, etc.;

[0120] ● Error sources of angle-based positioning methods, including at least one of the following: measurement errors of RAN nodes (e.g., AoA, RSRP, RSRPP, etc.), error sources caused by multipath or NLoS channels or radio propagation environment, etc.; or

[0121] ●Other error sources on the RAN node side that may affect the integrity performance.

[0122] In some embodiments of the present application, the AI ​​model may be used additionally or alternatively to generate integrity assistance data for the RAN node. In such embodiments, the RAN node may transmit the above integrity assistance information to the NWDAF ( Figure 2 ). After receiving the integrity assistance information of the RAN node, the NWDAF (e.g., an "analyzer" within the NWDAF) may use its trained AI model to predict the integrity assistance information of the RAN node and output the predicted integrity assistance information of the RAN node. For example, the predicted integrity assistance information may include an error probability with a time tag of the integrity assistance information. In another example, the predicted integrity assistance information may include any other information obtained based on the integrity assistance information of the RAN node.

[0123] After generating the predicted integrity assistance information of the RAN node, in one embodiment, the NWDAF may transmit the predicted integrity assistance information of the RAN node to the LMF, thereby assisting the LMF in making a positioning method decision (this will be described below).

[0124] In another embodiment, the NWDAF may transmit the predicted integrity assistance information of the RAN node to the RAN node. After receiving the predicted integrity assistance information, in some instances, the RAN node may transmit the predicted integrity assistance information to the LMF. In other words, in such embodiments, the integrity assistance data transmitted from the RAN node to the LMF may include the predicted integrity assistance information of the RAN node. In some other instances, the RAN node may not transmit the predicted integrity assistance information to the LMF. In some embodiments, the RAN node may use the predicted integrity assistance information to determine the positioning method determined by the LMF. For example, the RAN node may determine the positioning method determined by the LMF based on the predicted integrity assistance information to obtain a determination result. In some embodiments, the RAN node may transmit the determination result to the LMF.

[0125] According to some other embodiments of the present application, the transmission of the integrity assistance data of the RAN node to the LMF may be triggered by the LMF. Such embodiments may support MO-LR, MT-LR and delayed MT-LR location services. In such embodiments, procedure 200b may include steps 203' and 204.

[0126] In step 203', the LMF may transmit an indication to the LMF indicating that the RAN node will transmit integrity assistance data of the RAN node. The indication may be an integrity assistance data request. In one embodiment, the integrity assistance data request may be transmitted to the RAN node in an NRPPa message. Step 203' may occur before, after, or simultaneously with step 202.

[0127] In the case where the RAN node has the capability to transmit integrity assistance data and the RAN node has integrity assistance data that needs to be transmitted to the LMF, the RAN node may transmit the integrity assistance data of the RAN node to the LMF in response to the integrity assistance data request in step 204. Otherwise, the RAN node may transmit an indication indicating "error" to the LMF. For example, the indication may be an NRPPa message including a field indicating "error". Thereafter, the RAN node and the LMF may continue with the conventional LPP transmission procedure for positioning.

[0128] In one embodiment, the integrity assistance data of the RAN node may be transmitted in an integrity assistance data response. In one embodiment, the integrity assistance data response may be transmitted to the LMF in an NRPPa message. All operations and definitions of integrity assistance data of the RAN node for MO-LR location service described in the above embodiments may also be applicable here.

[0129] Therefore, the LMF may receive at least one of: integrity assistance data from the UE of the UE; integrity assistance data from the RAN node of the RAN node; or predicted integrity assistance information from the NWDAF.

[0130] The predicted integrity assistance information from the NWDAF may include at least one of: the predicted integrity assistance information of the UE (generated based on the integrity assistance information of the UE); or the predicted integrity assistance information of the RAN node (generated based on the integrity assistance information of the RAN node).

[0131] In step 205, the LMF may determine the RAT-dependent positioning method based on at least one of the following: integrity assistance data of the UE, integrity assistance data of the RAN node, or predicted integrity assistance information from the NWDAF. For example, the RAT-dependent positioning method may be one determined or selected from the following methods: NR-ECID positioning method, multi-RTT positioning method, DL-AoD positioning method, DL-TDOA positioning method, UL-TDOA positioning method, UL-AoA positioning method, etc.

[0132] According to some embodiments of the present application, after determining the RAT-dependent positioning method, the UE, the RAN node and the LMF may further perform at least one of the following procedures or operations to complete the positioning operation.

[0133] ● LPP procedures: The LMF (or UE) may initiate one or more LPP procedures to achieve at least one of the following: transmitting the positioning capabilities of the UE, providing assistance data to the UE, or obtaining location information from the UE (or LMF). In some embodiments, the LPP procedure for transmitting the positioning capabilities of the UE and the coordinates of the RAN nodes may be skipped because the LMF has already obtained such information in the integrity assistance data received in procedures 200a and 200b as described above.

[0134] ● NRPPa procedures: In some cases, if the LMF requires location-related information of the UE from the RAN node, the LMF may initiate one or more NRPPa procedures.

[0135] ●Location response operation: LMF can transmit the location response message to the UE or the network.

[0136] Figure 3 A flowchart of another exemplary method for determining a RAT-dependent positioning method according to some other embodiments of the present application is shown. Figure 3The method shown in the figure can be performed by at least three network entities, such as UE, RAN node (e.g., BS, TRP, etc.) and LMF. Although the method is shown at the system level, those skilled in the art can understand that the method implemented in the three network entities can be implemented separately and can be incorporated into other devices with similar functions.

[0137] exist Figure 3 In an embodiment of the present invention, integrity assistance data from the UE and RAN nodes may be transmitted to the LMF during the LPP capability procedure. Figure 3 The flowchart shown in FIG. 3 may include a procedure 300a for transmitting integrity assistance data of a UE to an LMF and a procedure 300b for transmitting integrity assistance data of a RAN node to an LMF. Figure 3 Both the process 300a and the process 300b are shown, but this does not mean that the two processes must occur at the same time. It is contemplated that in various embodiments of the present application, only one or both of the processes 300a and 300b may occur.

[0138] refer to Figure 3 , procedure 300a may include steps 301, 302, and 303. In step 301, a UE (e.g., Figure 1 UE 102a or UE 102b) in the UE can obtain the UE's integrity assistance data (also called UE-side integrity assistance data). Figure 2 All definitions and operations regarding UE integrity assistance data described in step 201 in FIG. 1 may also be applicable here.

[0139] In some embodiments of the present application, the LMF may receive a location request message from the UE (e.g., for MO-LR location service), or the LMF may accept a location request message from the AMF (e.g., for MT-LR location service), or receive an event report message from the UE (e.g., for delayed MT-LR location service). In response to receiving a location request message from the UE, receiving a location request message from the AMF, or receiving an event report message from the UE, the LMF may trigger a capability information transmission procedure including steps 302 and 303. In the capability information transmission procedure, integrity assistance data of the UE may be transmitted from the UE to the LMF. The following three options may provide different operations in steps 302 and 303.

[0140] Option 1'

[0141] In option 1', in step 302, the LMF may transmit a request message (eg, LPP RequestCapability message as specified in the 3GPP standard document) requesting the capabilities of the UE to the UE.

[0142] In step 303, in response to the request message, the UE may transmit the UE's integrity assistance data to the LMF in a response message providing UE capabilities. For example, the response message may be based on the LPPProvideCapacities message as specified in the 3GPP standard document, and may be referred to as an "enhanced LPP ProvideCapacities message". In such an embodiment, the response message may include information in the LPPProvideCapacities message as specified in TS 36.305 and TS 38.305, as well as the UE's integrity assistance data.

[0143] Option 2'

[0144] In option 2', in step 302, the LMF may transmit a request message (eg, LPP RequestCapability message as specified in the 3GPP standard document) requesting the capabilities of the UE to the UE.

[0145] Step 303 may further include two sub-steps: Figure 3 not shown).

[0146] In the first sub-step of step 303, in response to the request message, the UE may transmit a response message providing the capabilities of the UE to the LMF. The response message may further include an indication (or flag) indicating whether the integrity assistance data of the UE will be transmitted. For example, the indication may be a 1-bit indication, where a value of "1" indicates that the integrity assistance data of the UE will be transmitted to the LMF, and a value of "0" indicates that the integrity assistance data of the UE will not be transmitted to the LMF, or vice versa.

[0147] In one embodiment, the response message may be based on the LPPProvideCapacities message as specified in the 3GPP standard document, and may be referred to as an "enhanced LPP ProvideCapacities message". In such an embodiment, the response message may include information in the LPPProvideCapacities message as specified in TS 36.305 and TS 38.305, as well as integrity assistance data of the UE.

[0148] In response to the indication that the integrity assistance data of the UE is to be transmitted, in the second sub-step of step 303, the UE may transmit an LPP message (eg, LPP PDU message) including the integrity assistance data to the LMF.

[0149] Option 3'

[0150] In option 3', the LMF may transmit a request message requesting the capability of the UE to the UE in step 302. The request message further includes an integrity assistance data request.

[0151] In one embodiment, the request message may be based on the LPPRequestCapabilities message as specified in the 3GPP standard documents, and may be referred to as an "enhanced LPPRequestCapabilities message." In such an embodiment, the request message may include information in the LPPRequestCapabilities message as specified in TS 36.305 and TS 38.305, as well as a request for integrity assistance data.

[0152] In the case where the UE has the capability to transmit integrity assistance data and the UE has integrity assistance data that needs to be transmitted to the LMF, in step 303, the UE may transmit the integrity assistance data of the UE to the LMF in response to the integrity assistance data request. Otherwise, the UE may transmit an indication indicating "error" to the LMF. For example, the indication may be an LPP message including a field indicating "error". Thereafter, the UE and the LMF may continue the conventional LPP transmission procedure for positioning.

[0153] In one embodiment, the integrity assistance data of the UE may be transmitted to the LMF in a response message providing the capabilities of the UE. For example, the response message may be based on the LPP ProvideCapacities message as specified in the 3GPP standard document, and may be referred to as an "enhanced LPP ProvideCapacities message". In such an embodiment, the response message may include information in the LPP ProvideCapacities message as specified in TS 36.305 and TS 38.305, as well as the integrity assistance data of the UE.

[0154] In another embodiment, the UE's integrity assistance data may be transmitted to the LMF in a separate LPP message different from the response message providing the UE's capabilities.

[0155] As described above, procedure 300b may be used to transmit integrity assistance data of a RAN node to an LMF. Figure 2 All operations and definitions described for integrity assistance data of RAN nodes may also apply here.

[0156] exist Figure 3 In the embodiment, the transmission of the integrity assistance data of the RAN node to the LMF may be triggered by the UE or the LMF. Since the network nodes used to trigger the above transmission are different, the operations in the procedure 300b may be different.

[0157] According to some embodiments of the present application, the transmission of the integrity assistance data of the RAN node to the LMF may be triggered by the UE. In such embodiments, the procedure 300b may include steps 304 and 305, which are similar to Figure 2 Steps 203 and 204 in FIG. The difference between steps 304-305 and steps 203-204 may only be the time at which they occur. For example, Figure 2 Steps 203-204 in the above method may occur in a location request procedure, and steps 304-305 may occur in a capability information transmission procedure. The operation performed in step 304 may be the same as the operation performed in step 203, and the operation performed in step 305 may be the same as the operation performed in step 204.

[0158] According to some other embodiments of the present application, the transmission of the integrity assistance data of the RAN node to the LMF may be triggered by the LMF. In such embodiments, the procedure 300b may include steps 304' and 305, which are similar to Figure 2 Steps 203' and 204 in FIG. The difference between steps 304'-305 and steps 203'-204 may only be the time at which they occur. For example, Figure 2 Steps 203'-204 in the above method may occur in a location request procedure, and steps 304'-305 may occur in a capability information transmission procedure. The operation performed in step 304' may be the same as the operation performed in step 203, and the operation performed in step 304 may be the same as the operation performed in step 204.

[0159] Therefore, the LMF may receive at least one of: integrity assistance data from the UE of the UE; integrity assistance data from the RAN node of the RAN node; or predicted integrity assistance information from the NWDAF.

[0160] The predicted integrity assistance information from the NWDAF may include at least one of: the predicted integrity assistance information of the UE (generated based on the integrity assistance information of the UE); or the predicted integrity assistance information of the RAN node (generated based on the integrity assistance information of the RAN node).

[0161] In step 306, the LMF may determine the RAT-dependent positioning method based on at least one of the following: integrity assistance data of the UE, integrity assistance data of the RAN node, or predicted integrity assistance information from the NWDAF. For example, the RAT-dependent positioning method may be one determined or selected from the following methods: NR-ECID positioning method, multi-RTT positioning method, DL-AoD positioning method, DL-TDOA positioning method, UL-TDOA positioning method, UL-AoA positioning method, etc.

[0162] According to some embodiments of the present application, after determining the RAT-dependent positioning method, the UE, the RAN node and the LMF may further perform at least one of the following procedures or operations to complete the positioning operation.

[0163] ●Assistance data and location information transmission procedures: The LMF (or UE) may initiate one or more LPP procedures to achieve at least one of the following: providing assistance data to the UE or obtaining location information from the UE (or LMF).

[0164] ● NRPPa procedures: In some cases, if the LMF requires location-related information of the UE from the RAN node, the LMF may initiate one or more NRPPa procedures.

[0165] ●Location response operation: LMF can transmit the location response message to the UE or the network.

[0166] Figure 4 A simplified block diagram of an exemplary device 400 for RAT-dependent positioning integrity according to some embodiments of the present application is shown. In some embodiments, the device 400 may be or include at least a portion of a UE. In some other embodiments, the device 400 may be or include at least a portion of a RAN node (e.g., a BS, a TRP, etc.). In some other embodiments, the device 400 may be or include at least a portion of a LMF.

[0167] about Figure 4 , the device 400 may include at least one transmitter 402, at least one receiver 404, and at least one processor 406. The at least one transmitter 402 is coupled to the at least one processor 406, and the at least one receiver 404 is coupled to the at least one processor 406.

[0168] Although in this figure, elements such as transmitter 402, receiver 404, and processor 406 are shown in singular form, the plural form may be considered unless limitation to the singular is explicitly stated. In some embodiments of the present application, transmitter 402 and receiver 404 may be combined into one device, such as a transceiver. In some embodiments of the present application, device 400 may further include an input device, a memory, and / or other components. Transmitter 402, receiver 404, and processor 406 may be configured to perform any of the methods described herein (e.g., Figure 2 and 3 or other methods described in the examples of this application).

[0169] According to some embodiments of the present application, the device 400 may be a UE, and the transmitter 402, the receiver 404 and the processor 406 may be configured as described above. Figure 2 and 3 Any of the described methods or other methods described in the embodiments of the present application perform the operation of the UE. For example, the processor 406 is configured to obtain the integrity assistance data of the UE. The transmitter 402 is configured to transmit the integrity assistance data of the UE to the LMF.

[0170] According to some embodiments of the present application, the device 400 may be a RAN node (eg, a BS, a TRP, etc.), and the transmitter 402, the receiver 404, and the processor 406 may be configured as described above. Figure 2 and 3 Any of the methods described or other methods described in the embodiments of the present application perform operations of the RAN node. For example, the receiver 404 is configured to receive an indication indicating that the RAN node is to transmit the integrity assistance data of the RAN node to the LMF. The transmitter 402 is configured to transmit the integrity assistance data of the RAN node to the LMF in response to the indication when the RAN node has the capability to transmit the integrity assistance data and the RAN node has the integrity assistance data that needs to be transmitted to the LMF.

[0171] According to some embodiments of the present application, the device 400 may be a LMF, and the transmitter 402, the receiver 404 and the processor 406 may be configured as described above. Figure 2 and 3Any of the methods described or other methods described in the embodiments of the present application perform the operation of the LMF. For example, the receiver 404 is configured to receive at least one of the following: first integrity assistance data from the UE of the UE; second integrity assistance data from the RAN node of the RAN node; or predicted integrity assistance information from the NWDAF. The processor 406 is configured to determine the RAT-dependent positioning method based on at least one of the following: the first integrity assistance data, the second integrity assistance data, or the predicted integrity assistance information.

[0172] In some embodiments of the present application, the device 400 may further include at least one non-transitory computer-readable medium. In some embodiments of the present disclosure, the non-transitory computer-readable medium may store computer-executable instructions thereon to enable the processor 406 to implement any of the methods described above. For example, when executed, the computer-executable instructions may enable the processor 406 to interact with the transmitter 402 and / or the receiver 404 to perform the operations of the method, such as regarding Figure 2 and 3 Other methods described or described in the examples of this application.

[0173] The method according to any of the embodiments of the present application may also be implemented on a programmed processor. However, the controller, flow chart and module may also be implemented on a general or special purpose computer, a programmed microprocessor or microcontroller and peripheral integrated circuit elements, an integrated circuit, a hardware electronic or logic circuit (such as a discrete element circuit), a programmable logic device, and the like. Generally, any device on which a finite state machine capable of implementing the flow chart shown in the accompanying drawings resides can be used to implement the processor function of the present application. For example, an embodiment of the present application provides a device for RAT-dependent positioning integrity, comprising a processor and a memory. Computer programmable instructions for implementing the method for RAT-dependent positioning integrity are stored in a memory, and the processor is configured to execute computer programmable commands to implement the method for RAT-dependent positioning integrity. The method for RAT-dependent positioning integrity may be any method described in the present application.

[0174] Alternative embodiments preferably implement the methods according to the various embodiments of the present application in a non-transitory computer-readable storage medium storing computer programmable instructions. The instructions are preferably executed by a computer executable component that is preferably integrated with a network security system. The non-transitory computer-readable storage medium can be stored on any suitable computer-readable medium, such as RAM, ROM, flash memory, EEPROM, optical storage device (CD or DVD), hard drive, floppy disk drive, or any suitable device. The computer executable component is preferably a processor, but the instructions may be executed alternatively or additionally by any suitable dedicated hardware device. For example, an embodiment of the present application provides a non-transitory computer-readable storage medium in which computer programmable instructions are stored. The computer programmable instructions are configured to implement the method of RAT-dependent positioning integrity according to any embodiment of the present application.

[0175] Although the present application is described with the specific embodiments of the present application, it is obvious that many alternatives, modifications and changes may be apparent to those skilled in the art. For example, in other embodiments, the various components of the embodiments may be interchangeable, added or replaced. Moreover, all the elements of each of the accompanying drawings are not necessary for the operation of the disclosed embodiments. For example, it will enable a person of ordinary skill in the field of the disclosed embodiments to formulate and use the teachings of the present application by simply applying the elements of the independent claims. Therefore, the embodiments of the present application as set forth herein are intended to be illustrative rather than restrictive. Various changes may be made without departing from the spirit and scope of the present application.

Claims

1. A user equipment UE, comprising: a processor configured to obtain integrity assistance data of the UE; a transmitter coupled to the processor and configured to transmit the integrity assistance data of the UE to a location management function LMF; as well as A receiver is coupled to the processor.

2. The UE according to claim 1, wherein the integrity assistance data comprises at least one of the following: integrity assistance information, the integrity assistance information comprising at least one of an error source or UE assistance information; or Predicted completeness side information.

3. The UE according to claim 2, wherein the UE assistance information comprises at least one of the following: The type of the UE; An expected state of the UE performing positioning; a reference signal received power RSRP value measured by the UE; an indication of a location range of the UE; or The synchronization status of the UE.

4. The UE of claim 2, wherein the transmitter is further configured to transmit the integrity assistance information to a network data analysis function (NWDAF), and the receiver is configured to receive the predicted integrity assistance information based on the integrity assistance information from the NWDAF.

5. The UE according to claim 4, wherein The processor is further configured to determine the positioning method determined by the LMF based on the predicted integrity assistance information to obtain a determination result; and The transmitter is further configured to transmit the determination result to the LMF.

6. The UE according to claim 1, wherein the integrity assistance data of the UE is transmitted to the LMF in a location request message or an event report message.

7. The UE according to claim 1, wherein the transmitter is further configured to: transmitting an indication in a location request message or an event report message to indicate whether the integrity assistance data of the UE is to be transmitted; and The integrity assistance data of the UE is transmitted to the LMF in a Long Term Evolution LTE Positioning Protocol LPP message in response to the indication that the integrity assistance data of the UE will be transmitted.

8. The UE according to claim 1, wherein the transmitter is further configured to transmit an indication in a location request message or an event report message to indicate whether the UE has the capability to transmit the integrity assistance data and whether the UE has the integrity assistance data that needs to be transmitted to the LMF; wherein the receiver is configured to receive an integrity assistance data request from the LMF in response to the indication indicating that the UE has the capability to transmit the integrity assistance data and the UE has the integrity assistance data that needs to be transmitted to the LMF; and The integrity assistance data of the UE is transmitted to the LMF in response to the integrity assistance data request.

9. The UE according to claim 1, wherein the receiver is configured to receive an integrity assistance data request from the LMF; and The integrity assistance data of the UE is transmitted to the LMF in response to the integrity assistance data request when the UE has the capability of transmitting the integrity assistance data and the UE has the integrity assistance data that needs to be transmitted to the LMF.

10. The UE according to claim 1, wherein the receiver is configured to receive a request message from the LMF requesting capabilities of the UE; and The integrity assistance data of the UE is transmitted to the LMF in a response message providing the capability of the UE in response to the request message.

11. The UE according to claim 1, wherein the receiver is configured to receive a request message from the LMF requesting capabilities of the UE; The transmitter is further configured to: transmitting, in response to the request message, a response message providing the capabilities of the UE to the LMF, wherein the response message includes an indication indicating whether the integrity assistance data of the UE is to be transmitted; and The integrity assistance data of the UE is transmitted to the LMF in an LPP message in response to the indication that the integrity assistance data of the UE will be transmitted.

12. The UE according to claim 1, wherein the receiver is configured to receive a request message from the LMF requesting capabilities of the UE, wherein the request message comprises an integrity assistance data request; The integrity assistance data of the UE is transmitted to the LMF in a response message providing the capability of the UE or in a separate LPP message in response to the integrity assistance data request, when the UE has the capability to transmit the integrity assistance data and the UE has the integrity assistance data that needs to be transmitted to the LMF.

13. A radio access network RAN ​​node, comprising: a receiver configured to receive an indication that the RAN node transmits integrity assistance data of the RAN node to a location management function LMF; a transmitter configured to transmit the integrity assistance data of the RAN node to the LMF in response to the indication if the RAN node has a capability to transmit the integrity assistance data and the RAN node has the integrity assistance data that needs to be transmitted to the LMF; as well as A processor is coupled to the transmitter and the receiver.

14. The RAN node of claim 13, wherein the indication is an integrity assistance data indication received from a user equipment UE or an integrity assistance data request received from the LMF, and the integrity assistance data of the RAN node is transmitted in a New Radio NR Positioning Protocol A NRPPa message.

15. A location management function LMF, comprising: A receiver configured to receive at least one of: a user equipment UE, first integrity assistance data from the UE; a Radio Access Network, RAN, node, second integrity assistance data from said RAN node; or Predicted integrity assistance information from the Network Data Analysis Function (NWDAF); a processor, the processor being coupled to the receiver and configured to determine a radio access technology (RAT) dependent positioning method based on at least one of: the first integrity assistance data, the second integrity assistance data, or the predicted integrity assistance information; as well as A transmitter is coupled to the processor.

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