Positioning method and apparatus
By standardizing the sending and configuration of channel measurement information between terminal devices, network devices and LMF, the problem of inconsistent path selection of AI/ML models in traditional positioning methods is solved, and the positioning accuracy and generalization ability of the model are improved, especially in NLOS environments.
Patent Information
- Application Number
- PCT/CN2024/086112
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-10-09
AI Technical Summary
In traditional LMF-based positioning methods, when using AI/ML models, the measurement report path selection methods between terminal devices and network devices are different, resulting in limited generalization capabilities, affecting AI/ML gains, and traditional path detection methods have insufficient positioning accuracy in NLOS environments.
The terminal device and network device send positioning-related measurement information to the LMF, including the identification and sample point information measured in the positioning measurement interval. The time intervals of consecutive samples in the sample point group are the same. The reporting method and content of the configured channel measurement, including channel impulse response, power delay spectrum, etc.
It improves the measurement feedback and positioning accuracy of AI/ML models, enhances the generalization ability and reliability of AI/ML models, and overcomes the positioning error caused by NLOS paths.
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Figure CN2024086112_09102025_PF_FP_ABST
Abstract
Description
Positioning method and device Technical Field
[0001] The embodiments of the present application relate to the field of communication technologies. Background Art
[0002] Applying artificial intelligence (AI) and machine learning (ML), or AI / ML, to the air interface has been extensively researched in academia, industry, and within 3GPP. Among the use cases already under investigation within 3GPP is positioning using AI / ML. Using AI / ML techniques can significantly improve positioning accuracy. This research is crucial not only for 5G wireless networks but also for the upcoming 6G wireless networks.
[0003] In this direction, five sub-use cases were studied, which fall into two categories: AI / ML direct positioning and AI / ML assisted positioning. Direct positioning refers to the AI output being positioning information, while assisted positioning refers to the AI output being auxiliary information used for positioning:
[0004] AI / ML Direct Targeting:
[0005] Use case 1: UE-based positioning using the UE (User Equipment) side model, which is AI / ML direct positioning.
[0006] Use case 2b: UE-assisted / LMF-based positioning using the LMF (Location Management Function) side model, and AI / ML direct positioning;
[0007] Use case 3b: NG-RAN node-assisted positioning using the LMF side model, which is AI / ML direct positioning;
[0008] AI / ML-assisted positioning:
[0009] Use case 2a: UE-assisted / LMF-based positioning using the UE-side model, which is AI / ML-assisted positioning.
[0010] Use case 3a: NG-RAN node-assisted positioning using the gNB-side model, which is AI / ML-assisted positioning.
[0011] It should be noted that the above introduction to the technical background is merely intended to provide a clear and complete description of the technical solutions of this application and facilitate understanding by those skilled in the art. Simply because these solutions are described in the background technology section of this application, it should not be assumed that the above technical solutions are well known to those skilled in the art.
[0012] Summary of the Invention
[0013] In traditional LMF-based positioning methods, if NG-RAN node-assisted positioning is used, the UE sends an SRS (Sounding Reference Signal) to the gNB, and the gNB performs SRS-based measurements. The measurement results are reported to the LMF in the form of UL-SRS-RSRPP reports or UL-RTOA reports.
[0014] If the LMF-based positioning method is UE-assisted positioning, the gNB sends a Positioning Reference Signal (PRS) to the UE, and the UE performs PRS-based measurements. The measurement results are reported to the LMF in the form of DL-PRS-RSRPP reports or DL RSTD reports.
[0015] In the case where AI / ML is applied to positioning, such as the above-mentioned use case 2b or use case 3b. The AI / ML model is deployed at the LMF and used for AI / ML direct positioning. If the current measurement report is reused as a direct input signal to the AI / ML model, the gain of AI / ML will be limited. For example, if DL RSRPP or UL RSRPP is used, the method of selecting the path for reporting may be different for different UEs, which poses a great challenge to the generalization capability. On the other hand, the selected path may eliminate some features of the original measurement results and result in a reduction in the gain of using AI / ML. Therefore, in order to better utilize the advantages of the AI / ML model and ensure its performance, some new designs of the traditional methods are needed.
[0016] To address at least one of the above problems or similar problems, embodiments of the present application provide a positioning method and apparatus.
[0017] According to a first aspect of an embodiment of the present application, a positioning method is provided, the method comprising: a terminal device sending measurement information related to positioning to a location management function (LMF) on a network side, the measurement information related to positioning comprising one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifier, the sample point information comprising relevant information of a sample point group, the sample point group comprising a plurality of consecutive sample points in a channel measurement result, and the time intervals between two consecutive sample points in the sample point group being the same.
[0018] According to a second aspect of an embodiment of the present application, a positioning method is provided, the method comprising: a network device sending positioning-related measurement information to a network-side location management function (LMF), the positioning-related measurement information comprising one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifier, the sample point information comprising relevant information of a sample point group, the sample point group comprising a plurality of consecutive sample points in a channel measurement result, the time interval between two consecutive sample points in the sample point group being the same.
[0019] According to a third aspect of an embodiment of the present application, a positioning method is provided, the method comprising:
[0020] The network side location management element sends configuration information to the network device or terminal device.
[0021] The configuration information includes the configuration of the reporting mode of the channel measurement and / or the configuration of the reporting content of the channel measurement,
[0022] The reporting method of the channel measurement includes at least one of the following: channel impulse response, power delay spectrum, delay spectrum,
[0023] The configuration of the reporting content of the channel measurement at least includes the reporting configuration of time information.
[0024] According to a fourth aspect of an embodiment of the present application, a positioning device is provided, which is arranged in a terminal device, and the device includes: a first sending unit, which is used to send measurement information related to positioning to a location management function (LMF) on the network side, wherein the measurement information related to positioning includes one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifier, the sample point information includes relevant information of a sample point group, the sample point group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group is the same.
[0025] According to a fifth aspect of an embodiment of the present application, a positioning device is provided, which is arranged in a network device, and the device includes: a second sending unit, which is used to send measurement information related to positioning to a location management function (LMF) on the network side, wherein the measurement information related to positioning includes one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifier, the sample point information includes relevant information of a sample point group, the sample point group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group is the same.
[0026] According to a sixth aspect of an embodiment of the present application, a positioning device is provided, the device being arranged in a network-side location management network element, the device comprising:
[0027] The third sending unit sends configuration information to the network device or the terminal device,
[0028] The configuration information includes the configuration of the reporting mode of the channel measurement and / or the configuration of the reporting content of the channel measurement,
[0029] The reporting method of the channel measurement includes at least one of the following: channel impulse response, power delay spectrum, delay spectrum,
[0030] The configuration of the reporting content of the channel measurement at least includes the reporting configuration of time information.
[0031] According to the seventh aspect of the embodiments of the present application, a computer-readable program is provided, wherein when the program is executed in a positioning device or a terminal device, the program causes the positioning device or the terminal device to execute the positioning method described in the first aspect of the embodiments of the present application.
[0032] According to an eighth aspect of an embodiment of the present application, a computer-readable program is provided, wherein when the program is executed in a positioning device or a first network device, the program causes the positioning device or the first network device to perform the positioning method described in the second aspect of the embodiment of the present application.
[0033] According to the ninth aspect of the embodiment of the present application, a computer-readable program is provided, wherein when the program is executed in a positioning device or a second network device, the program causes the positioning device or the second network device to perform the positioning method described in the third aspect of the embodiment of the present application.
[0034] According to the tenth aspect of the embodiments of the present application, a storage medium storing a computer-readable program is provided, wherein the computer-readable program enables a positioning device or a terminal device to execute the positioning method described in the first aspect of the embodiments of the present application.
[0035] According to the eleventh aspect of the embodiments of the present application, a storage medium storing a computer-readable program is provided, wherein the computer-readable program enables the positioning device or the first network device to execute the positioning method described in the second aspect of the embodiments of the present application.
[0036] According to the twelfth aspect of the embodiment of the present application, a storage medium storing a computer-readable program is provided, wherein the computer-readable program enables the positioning device or the second network device to execute the positioning method described in the third aspect of the embodiment of the present application.
[0037] One of the beneficial effects of the embodiments of the present application is that: the terminal device or network device reports measurement information related to positioning, wherein the measurement information related to positioning includes one or more identifiers (IDs) measured in a positioning measurement interval and sample information corresponding to the identifier, the sample information includes relevant information of a sample group, the sample group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample group is the same. Thus, the measurement feedback of LMF can be further enhanced, and the advantages of AI / ML models can be better utilized, and the advantages of AI / ML models can be further expanded and more reliable.
[0038] With reference to the following description and accompanying drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application can be employed. It should be understood that the embodiments of the present application are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present application include many variations, modifications and equivalents.
[0039] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.
[0040] It should be emphasized that the term "include / comprising" when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] The elements and features described in one figure or one embodiment of the present application can be combined with the elements and features shown in one or more other figures or embodiments. In addition, in the accompanying drawings, similar reference numerals represent corresponding parts in several figures and can be used to indicate corresponding parts used in more than one embodiment.
[0042] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application;
[0043] FIG2 is a schematic diagram of a LOS path and a NLOS path from a TRP to a UE;
[0044] FIG3 is a schematic diagram of a typical layout of an indoor factory;
[0045] FIG4 is a schematic diagram of a path-based measurement sample;
[0046] FIG5 is a schematic diagram of an application scenario of an embodiment of the present application;
[0047] FIG6 is a schematic diagram of a positioning method according to an embodiment of the present application;
[0048] FIG7 is a schematic diagram of information on a channel time domain response of a positioning reference signal according to an embodiment of the present application;
[0049] FIG8 is a signaling interaction diagram between a terminal device and an LMF according to an embodiment of the present application;
[0050] FIG9 is another schematic diagram of the positioning method according to an embodiment of the present application;
[0051] FIG10 is a signaling interaction diagram between a terminal device and an LMF according to an embodiment of the present application;
[0052] FIG11 is another schematic diagram of the positioning method according to an embodiment of the present application;
[0053] FIG12 is a schematic diagram of a positioning device according to an embodiment of the present application;
[0054] FIG13 is another schematic diagram of the positioning device according to an embodiment of the present application;
[0055] FIG14 is another schematic diagram of a positioning device according to an embodiment of the present application;
[0056] FIG15 is a schematic block diagram of a system structure of a terminal device according to an embodiment of the present application;
[0057] FIG16 is a schematic block diagram of a system structure of a first network device according to an embodiment of the present application;
[0058] FIG17 is a schematic block diagram of the system structure of the second network device according to an embodiment of the present application. DETAILED DESCRIPTION
[0059] The above and other features of the present application will become apparent through the following description with reference to the accompanying drawings. In the description and the accompanying drawings, specific embodiments of the present application are disclosed in detail, which illustrate some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations and equivalents that fall within the scope of the appended claims.
[0060] In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms. The term "and / or" includes any one and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having", etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.
[0061] In the embodiments of this application, the singular forms "a," "the," etc. include plural forms and should be broadly understood to mean "a" or "a type" rather than being limited to "one." Furthermore, the term "said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. Furthermore, the term "according to" should be understood to mean "at least in part based on...", and the term "based on" should be understood to mean "at least in part based on...", unless the context clearly indicates otherwise.
[0062] In the embodiments of the present application, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), etc.
[0063] Furthermore, communication between devices in the communication system may be carried out according to communication protocols of any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, 5G-Advanced, New Radio (NR), future 6G, etc., and / or other communication protocols currently known or to be developed in the future.
[0064] In the embodiments of the present application, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services to the terminal device. Network devices may include, but are not limited to, the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.
[0065] Base stations may include, but are not limited to, NodeBs (NBs), evolved NodeBs (eNodeBs or eNBs), and 5G base stations (gNBs), central processing units (CUs), distributed processing units (DUs), and the like. They may also include remote radio heads (RRHs), remote radio units (RRUs), relays, or low-power nodes (e.g., femetos, pico nodes, etc.). The term "base station" may include some or all of these functions, and each base station may provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.
[0066] In the embodiments of the present application, "network equipment" may also include network equipment or network elements of the core network and / or higher-layer networks. For example, the core network includes EPC (corresponding to the 4G core network) and / or 5GC (corresponding to the 5G core network);
[0067] EPC includes but is not limited to the following network elements: MME (Mobility Management Entity), SGW (Serving Gateway), PGW (PDN Gateway), PCRF (Policy and Charging Rules Function), etc.
[0068] 5GC includes but is not limited to the following network elements: AMF (The Access and Mobility Management function), LMF (Location Management Function), SMF (The Session Management function), UPF (The User plane function), PCF (The Policy Control Function), UDM (The Unified Data Management), AUSF (The Authentication Server Function), UDR (The Unified Data Repository), etc.
[0069] In the embodiment of the present application, LMF (Location Management Function) refers to the core network element in 5GC that provides control plane positioning, completes the calculation and feedback of location information in the 5G network, and provides functions such as positioning process management, terminal capability acquisition, auxiliary data provision, and terminal position estimation.
[0070] The embodiments of the present application do not clearly distinguish between the relevant network elements used for positioning services, such as location server, location service server, LMF and other network elements. In the embodiments of the present application, these positioning-related core network elements are uniformly referred to as location management network elements, which can be abbreviated as LMF.
[0071] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services. A terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and so on.
[0072] Terminal devices may include, but are not limited to, the following devices: cellular phones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smartphones, smart watches, digital cameras, etc.
[0073] For another example, in scenarios such as the Internet of Things (IoT), the terminal device can also be a machine or device for monitoring or measurement, including but not limited to: machine type communication (MTC) terminal, vehicle-mounted communication terminal, device-to-device (D2D) terminal, machine-to-machine (M2M) terminal, and so on.
[0074] In addition, the term "network side" or "network device side" refers to one side of the network, which can be a base station or one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the user or terminal side, which can be a UE or one or more terminal devices as described above. Unless otherwise specified herein, "device" can refer to either network equipment or terminal equipment.
[0075] The following describes the scenarios of the embodiments of the present application through examples, but the present application is not limited thereto.
[0076] FIG1 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG1 , communication system 100 may include a first network device 101, a second network device (LMF) 102, and a terminal device 103. For simplicity, FIG1 illustrates only one terminal device and one first network device as an example, but the embodiments of the present application are not limited thereto.
[0077] In the embodiment of the present application, the first network device 101 is, for example, a base station, such as a gNB;
[0078] LMF 102 is, for example, a core network element or server related to positioning, called a location management element.
[0079] In the embodiments of the present application, in various applications of AI / ML for air interfaces, for AI / ML models deployed on the terminal device 103 side (UE side) or the network device side (gNB side, LMF side), functionality can be used to define the tasks that the AI / ML needs to complete and indirectly determine the capabilities and conditions for whether the AI / ML model is supported. For example, functionality can be considered to be defined by the lower-level concept feature or feature group.
[0080] In the embodiment of the present application, existing services or future services can be transmitted between the first network device 101 and the terminal device 103. For example, these services may include but are not limited to: enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.
[0081] In the embodiments of the present application, the high-layer signaling may be, for example, radio resource control (RRC) signaling; for example, an RRC message, including, for example, MIB, system information, or a dedicated RRC message; or an RRC information element (RRC IE). The high-layer signaling may also be, for example, MAC (Medium Access Control) signaling; or a MAC control element (MAC CE). However, the present application is not limited thereto.
[0082] A challenging scenario for NR-based positioning or other 3GPP network-based positioning is the lack of a LOS (line-of-sight) path. The transmission signal from the TRP (Transmission and Reception Point) dedicated to positioning (such as DL PRS or UL PRS) may not have a direct path to the UE. The NLOS (non-line-of-sight) path plays a dominant role in the radio channel from the TRP to the UE. Traditional positioning algorithms have difficulty estimating the distance between the transmitter (TRP) and the receiver (UE). Figure 2 is a schematic diagram of the LOS path and the NLOS path from the TRP to the UE. As shown in Figure 2, it is obvious that the distance of the NLOS path is longer than that of the NOS path, which leads to positioning errors in traditional methods.
[0083] This problem becomes severe in many indoor scenarios, such as IIoT indoor factories (InF, Table 6-1 in TR 38.857). Figure 3 illustrates a typical layout of an indoor factory. As shown in Figure 3, there are 18 Transmitter Relays (TRPs) in an indoor area measuring 120 x 60 m. Due to the presence of clutter, when radio waves are transmitted between the TRPs and the UE, many NLOS paths are generated from the TRPs to the UE. Furthermore, the large space of the indoor factory can cause the propagation delay along the NLOS path to be much longer than the delay along the LOS path, resulting in significant timing errors.
[0084] Channel measurements based on positioning reference signals from each TRP are input into the AI / ML model, as shown in Figure 3. The measurements for each TRP show the radio characteristics between the TRP and the receiving UE in the case of DL PRS, or between the UE and the receiving TRP in the case of UL SRS.
[0085] In Figure 3, TRPs are numbered from 1 to 18, indicating that there are 18 TRPs in the area that send PRS or receive SRS positioning reference signals. The measurement values of the positioning reference signals can be used as inputs to the AI model, and there will be 18 channel measurement results associated with the model input. These measurement results can be identified by the model as a radio fingerprint or multiple radio fingerprints. It should be noted that the embodiment of the present application does not make special considerations for the multi-antenna case, and it is assumed here that each TRP corresponds to one channel to one terminal device. During the training phase, the PRU (positioning reference unit) can be used to generate 18 channel measurement results associated with the model input, as well as to generate location information corresponding to the fingerprints of these measurement results. The location information is used as the true value label of the model output and is trained together with the model input. It can be assumed that the PRU is deployed in a high density in the factory (as a layout), or can be moved around the factory and pass through almost any area. Therefore, the AI / ML model has prior knowledge of the location information and its corresponding fingerprint input.
[0086] During the model inference phase, a UE at a certain location inputs its measurement results, a fingerprint, into the AI / ML model. Based on the fingerprint knowledge acquired during the training process, the model can directly generate location information. This fingerprint positioning mapping can overcome positioning errors caused by NLOS, thereby significantly improving positioning accuracy.
[0087] Traditional positioning methods use path-based methods, such as per-path RSRP (RSRPP). In this method, path detection depends on the UE's implementation. Figure 4 is a schematic diagram of path-based measurement samples. As shown in (a) and (b) of Figure 4, channel measurement samples have a sampling period, and paths can be detected based on these measurement samples. The detected path timing information can be aligned with the time instance of the samples. Alternatively, the channel measurement samples may not be an integer multiple of the sampling period.
[0088] For different methods, the path detection results may be different. As shown in (a) and (b) in Figure 4, the time instances of path 1 and path 2 are different.
[0089] Therefore, if a path-based positioning method is used, the differences in the algorithms implemented by different terminal devices will bring great challenges and problems to the generalization capabilities of AI / ML models.
[0090] As mentioned earlier, five sub-use cases are currently being studied, including Use Case 1 (case1), Use Case 2b (case2b), and Use Case 3b (case3b) for direct AI / ML positioning; and Use Case 2a (case2a) and Use Case 3a (case3a) for AI / ML-assisted positioning.
[0091] FIG5 is a schematic diagram of an application scenario of an embodiment of the present application.
[0092] In the LMF's AI / ML-based direct positioning measurement, a single or multiple network devices (such as base stations) need to send PRS signals to terminal devices that require positioning services through multiple transmit and receive points (TRPs) to which they are connected. The terminal obtains the channel measurement information that the PRS has passed through through channel estimation and detection, and feeds it back to the LMF through the LPP process, as shown in case 2b in (a) of Figure 5.
[0093] Alternatively, in the direct positioning measurement based on AI / ML of LMF, the terminal device that requires positioning service sends an uplink SRS signal as a positioning reference signal. The network device receives the signal through the TRP, obtains the channel measurement information of the SRS through channel estimation and detection, and feeds it back to the LMF through the NRPPa process, as shown in case 3b in (b) of Figure 5.
[0094] Since the channel measurement reporting based on traditional path identification of terminal devices or network devices conflicts with the requirement for consistent fingerprint features of the LMF side model input, a new measurement reporting needs to be designed to meet the requirements of model input and ensure AI performance.
[0095] Embodiments of the first aspect
[0096] An embodiment of the present application provides a positioning method, which is described from the perspective of a terminal device.
[0097] FIG6 is a schematic diagram of a positioning method according to an embodiment of the present application. As shown in FIG6 , the method includes:
[0098] 601. The terminal device sends measurement information related to positioning to a location management function (LMF) on the network side; wherein the measurement information related to positioning includes one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifier, the sample point information includes relevant information of a sample point group, the sample point group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group is the same.
[0099] It is worth noting that FIG6 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG6 above.
[0100] In some embodiments, the sample point carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0101] In some embodiments, the clock of the terminal device is synchronized with the clock of the serving cell, and the serving cell may include multiple TRPs, usually no more than 2, but this embodiment does not limit this. When positioning requires more TRPs to participate, these TRPs may come from different cells and different network devices (base stations).
[0102] In some embodiments, the terminal device generates measurement information related to positioning based on a positioning reference signal (PRS). The positioning reference signal is sent to the terminal device by a transmission reception point (TRP). Typically, a base station, such as a gNB, contains multiple cells, and each cell can support multiple TRPs. For positioning applications, the LMF can directly configure corresponding PRS resource sets, PRS resources, PRS IDs, PRS sequences and other configuration information for multiple TRPs of multiple cells through the LPP protocol, and send the configuration information to the terminal device. In a positioning measurement interval configured by an LMF, one or more TRPs can send positioning reference signals to the terminal device. Different TRPs are configured with different IDs, and a TRP is usually associated with a dl-PRS-ID.
[0103] In some embodiments, the positioning-related measurement information reported by the terminal device includes one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifier. For example, the one or more first identifiers are PRS IDs, that is, the PRS IDs corresponding to one or more PRSs detected by the terminal device in the positioning measurement interval, such as a downlink PRS identifier (dl-PRS-ID), and the dl-PRS-ID is used together with the downlink PRS resource set identifier (DL-PRS Resource Set ID) and the downlink PRS resource identifier (DL-PRS Resources ID) to uniquely identify a downlink PRS resource (DL-PRS Resource). Each TRP is associated with a dl-PRS-ID, so the ID can be equivalently considered to be a TRP ID, where the dl-PRS-ID takes a value between 0 and 255. The configuration method of the above-mentioned TRP ID is consistent with the version definition of TS 37.355 as of the invention date.
[0104] In some embodiments, the terminal device can use various methods to obtain information about the channel time domain response of the positioning reference signal. For example, based on the same method as the traditional measurement method, the channel time domain response information of the positioning reference signal is obtained through the channel estimation or detection algorithm of the positioning reference signal.
[0105] During a positioning measurement interval, the terminal device samples one or more positioning reference signals to obtain information about the channel time domain response of the one or more positioning reference signals, i.e., sampling information of the one or more positioning reference signals. The sampling information corresponding to a first identifier is the sampling information of the PRS corresponding to the first identifier.
[0106] Figure 7 is a schematic diagram of the information of the channel time domain response of the positioning reference signal of an embodiment of the present application. As shown in Figure 7, taking a positioning reference signal as an example, the channel time domain response of a positioning reference signal includes a plurality of consecutive sample points in the channel measurement result of the positioning reference signal by the terminal device, such as the plurality of consecutive sample points Sample#1, Sample#2, Sample#3,..., Sample#N shown in Figure 7. The plurality of consecutive sample points constitute the sample point group of the positioning reference signal. The sample point information of a positioning reference signal is the relevant information of the sample point group of the positioning reference signal. The time interval or sampling interval (Sample period) between two consecutive sample points in a sample point group is the same. For example, the time interval between Sample#1 and Sample#2 shown in Figure 7 is the same as the time interval between Sample#2 and Sample#3.
[0107] In some embodiments, the time interval or sampling interval between two consecutive sample points in a sample point group is configured by the LMF or is predefined.
[0108] In some embodiments, the sampling interval ΔT of the terminal device for the positioning reference signal can be defined as: Δ=2 k ×T c
[0109] Among them, T c =1 / (Δf max ×N f , Δf max =480·10 3 Hz, N f =4096, 0≤k≤5, or k can take other larger values. The value of k can be configured by the LMF or predefined. The sampling interval is usually associated with the bandwidth of the positioning reference signal. The larger the bandwidth, the smaller the sampling interval.
[0110] In some embodiments, the sampling interval is typically configured based on the LMF; when the LMF configures multiple sampling intervals for the terminal device, the sampling interval may also be determined by the terminal device, for example, the terminal device determines one of the multiple sampling intervals configured by the LMF as the sampling interval.
[0111] In some embodiments, the number of samples in the sample groups corresponding to different first identifiers is the same. For example, if the number of samples in the sample group corresponding to the positioning reference signal shown in FIG7 is N, the number of samples in the sample groups corresponding to other positioning reference signals detected by the terminal device in the same positioning detection interval is also N, where N is a positive integer.
[0112] In some embodiments, the sample point information includes at least time information of a corresponding sample point group, and the time information is represented by time information of the first sample point in the corresponding sample point group.
[0113] In some embodiments, the time information of the first sample point is represented by an offset value between the time corresponding to the first sample point and a reference time. The offset value is represented by an integer number of sample points after quantization of the sampling interval, such as a sample points or b sample points.
[0114] In some embodiments, in the measurement information related to positioning, reference times corresponding to sample point groups corresponding to different first identifiers are the same.
[0115] In some embodiments, when the sample groups corresponding to different first identifiers have the same reference time, the reference time is one of the following information:
[0116] The start time of the positioning measurement interval, i.e., the measurement timestamp, can be represented by the system frame number (SFN), the time slot number (slot number), and the start time of the start symbol (symbol) corresponding to the measurement start time;
[0117] The time corresponding to the earliest sample point in each sample point group;
[0118] The first identifier corresponding to the earliest first sample in each sample group is the system frame number (SFN), time slot number (slot number), and start time of the start symbol (symbol) corresponding to the positioning measurement interval;
[0119] The first identifier configured by the location management network element corresponds to the system frame number, time slot number, and start time of the start symbol in the positioning measurement interval.
[0120] In some embodiments, for the reference time corresponding to the first identifier configured by the location management network element, the TRP corresponding to the first identifier is usually the TRP of the terminal's serving cell, and the terminal is synchronized with the cell.
[0121] In some embodiments, the location management network element configures the terminal device reference time based on the terminal device clock rather than the network device clock. This facilitates the terminal to measure and report different identifiers based on the timing obtained by its own clock.
[0122] In some embodiments, when the time corresponding to the earliest first sample in each sample group is the reference time, the time deviation between the first sample of each sample group and the earliest first sample can be reported as the time information of the first sample of each sample group.
[0123] In some embodiments, in the measurement information related to positioning, the reference times corresponding to the sample point groups corresponding to different first identifiers may also be different.
[0124] For example, in this case, the reference time corresponding to each sample point group is the system frame number (SFN), slot number, or start time of the start symbol corresponding to the corresponding first identifier in the positioning measurement interval.
[0125] In some embodiments, the reference time is predefined, or the reference time is configured by LMF.
[0126] In some embodiments, the terminal device determines each first sample point in each sample point group respectively.
[0127] In some embodiments, the terminal device obtains the first sample point based on detection. For example, corresponding to a PRS resource corresponding to a TRP, channel measurement information can be obtained based on algorithms such as correlation detection, wherein the first path can be determined using conventional methods.
[0128] In some embodiments, the first sample point in the sample point group determined by the terminal device is:
[0129] In the positioning measurement interval, the terminal device determines the sample point corresponding to the first path in the process of detecting the positioning reference signal corresponding to the first identifier.
[0130] In some embodiments, to avoid differences caused by different methods for confirming the first path, a time offset can be introduced, and the sample point corresponding to the time offset before the first path confirmed by the conventional method is agreed to be the first sample point. For example, the first sample point in the sample point group determined by the terminal device is:
[0131] The sample point corresponding to the time corresponding to the first path is shifted forward by a first time value, wherein the first time value is configured by the LMF or is predefined.
[0132] In some embodiments, the terminal device determines the first sample point based on predefined or LMF configured information. For example, for positioning measurements configured or initiated by LMF, in a measurement interval, for channel measurement of a TRP, the first sample point (first sample point) of the system frame number (SFN), time slot number (slot number), and start symbol (symbol) corresponding to the corresponding PRS resource can be used as the first sample point of the channel measurement reporting sample point group. For different TRPs, the corresponding SFN, slot, and first sample point (first sample point) of the PRS start symbol may be different.
[0133] In some embodiments, the first sample point in the sample point group determined by the terminal device is:
[0134] In the measurement interval, the system frame number (SFN) and the time slot number (slot number) corresponding to the first identifier corresponding to the sample group, and the sample corresponding to the start time of the start symbol (symbol).
[0135] In some embodiments, to tolerate possible timing deviations between the terminal device and each TRP, a certain time offset may be introduced. Thus, the sample point corresponding to the time offset before the first sample point is used as the first sample point in the reported sample point group. The time offset value may be predefined or configured by the LMF. For example, the first sample point in the sample point group determined by the terminal device is:
[0136] The system frame number (SFN) and the time slot number corresponding to the first identifier corresponding to the sample group, and the sample corresponding to the time corresponding to the start time of the start symbol offset forward by a second time value, where the second time value is configured by the LMF or is predefined.
[0137] In some embodiments, the LMF configures the terminal device with configuration information related to a method for determining the first sample in the sample group.
[0138] In some embodiments, when the terminal device reports to the LMF, for a TRP identifier, in addition to the time information of the corresponding sample group, the terminal device also reports one or more of the following aspects for the channel measurement result (or the sample information also includes one or more of the following aspects):
[0139] Sampling point quantity information or sampling interval information or sampling length information;
[0140] Power or amplitude information of the corresponding sample point group;
[0141] Phase information of the corresponding sample group.
[0142] In some embodiments, the number of sampling points, sampling interval, and sampling length can be configured or predefined by the LMF for the terminal device.
[0143] In some embodiments, the terminal device can determine the number of sampling points or sampling length required for measurement and reporting based on the latency of the measured channel. In other words, the number of sampling points or sampling length for channel measurement reporting is determined by the terminal. In this example, the number of sampling points or sampling length for channel measurement reporting corresponding to different TRPs is assumed to be the same.
[0144] In some embodiments, the terminal device can determine the number of sampling points or sampling length required for measurement and reporting based on the delay of the measured channel. When the channel conditions traversed by different TRPs to the terminal device vary, especially when the multipath delay spread varies, different numbers of sampling points can be used for reporting for different TRPs to reduce reporting overhead.
[0145] In some embodiments, the power or amplitude information, and the phase information may be represented based on quantized bits.
[0146] In some embodiments, the LMF configures the terminal device to report content. For example, the LMF configures the terminal device to report one or more of the following: time information, power or amplitude information, phase information, number of sampling points or sampling length information, sampling interval information, etc., related to channel measurement.
[0147] Among them, when the LMF configures the terminal device to report time information related to channel measurement, the terminal device reports the time information of the first sample point of each sample point group according to the aforementioned embodiment; when the LMF configures the terminal device to report power or amplitude information related to channel measurement, the terminal device reports the channel power or amplitude information corresponding to the sample point position of each sample point group, and the power or amplitude information can be represented based on a quantized bit; when the LMF configures the terminal device to report phase information related to channel measurement, the terminal device reports the angle information corresponding to the channel power or amplitude corresponding to the sample point position of each sample point group, and the phase information can be represented based on a quantized bit.
[0148] In some embodiments, the number of quantization bits for power or amplitude, and the number of quantization bits for phase, is determined by the terminal. This design allows the terminal to consider the quantization bits based on the SINR of the positioning channel, thereby reducing the impact of quantization error or lowering reporting overhead.
[0149] In some embodiments, the LMF configures measurement parameters related to positioning for the terminal device, and the measurement parameters related to positioning include, for example, dl-PRS-ID, and / or information of one or more PRS resource sets (PRS resource set) corresponding to the dl-PRS-ID, and / or information of the PRS resource (PRS resource) corresponding to the dl-PRS-ID.
[0150] In some embodiments, the LMF configures the terminal device with information such as the system frame number offset (SFN offset), subframe offset, or slot offset between the sending and receiving points.
[0151] In some embodiments, the terminal device may report measurement information related to positioning to the LMF based on a detection sample point method, or the terminal device may report measurement information related to positioning to the LMF based on a detection path method. For example, the terminal device reports measurement information related to positioning to the LMF based on a detection sample point method.
[0152] In some embodiments, the LMF configures a reporting mode for the terminal device, such as a detection sample point-based reporting mode or a path-based reporting mode. For example, the terminal device is configured by the LMF to use a sample point-based reporting mode.
[0153] In some embodiments, the terminal device reports positioning-related measurement information to the LMF using at least one of the following reporting types:
[0154] Channel Impulse Response (CIR);
[0155] Power Delay Profile (PDP);
[0156] Delay Profile (DP).
[0157] When using CIR to report positioning-related measurement information, the time information, amplitude or power information, and phase information corresponding to the sample point (group) must be reported. When using PDP to report positioning-related measurement information, the time information and amplitude or power information corresponding to the sample point (group) must be reported. When using DP to report positioning-related measurement information, the time information corresponding to the sample point (group) must be reported.
[0158] In some embodiments, the LMF explicitly configures the reporting type for the terminal device. Based on the requirements of its AI / ML function, the LMF configures the terminal device to report channel measurement information that matches the input format of its AI / ML model.
[0159] For example, the channel measurement information may be in the form of one or more of Channel Impulse Response (CIR), Power Delay Profile (PDP), and Delay Profile (DP).
[0160] In some embodiments, the LMF indicates the type of reporting by the terminal device and / or parameters related to the reporting through relevant configuration information.
[0161] In some embodiments, the method further comprises:
[0162] The terminal device receives configuration information sent by the location management network element on the network side.
[0163] In some embodiments, the configuration information indicates the content reported by the terminal device, the reporting method, the reporting type, the measurement parameters related to positioning, the method for determining the first sample of the sample group, etc. For details, please refer to the above embodiments and will not be repeated here.
[0164] In some embodiments, the content reported by the terminal device includes at least one of the following information:
[0165] Reporting configuration of measurement result time information;
[0166] Configuration for reporting measurement result power or amplitude information;
[0167] Configuration for reporting phase information of measurement results.
[0168] LMF instructs the terminal device on the type of report and the configuration method of the parameters related to the report through configuration information, which is equivalent to LMF implicitly configuring the feedback method of CIR, PDP, and DP.
[0169] In some embodiments, the reporting configuration of the measurement result time information includes at least one of the following information: information related to the sampling interval; information related to the sampling length or the number of sampling points; information on the reference time of the first sample point; information on the method for determining the first sample point; information on the time offset of the first sample point; please refer to the above embodiments for details, which will not be repeated here.
[0170] The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following information: a quantization interval of the power or amplitude; a quantization range of the power or amplitude; a quantization bit of the power or amplitude;
[0171] The reporting configuration of the measurement result phase information includes phase quantization information.
[0172] Figure 8 is a diagram of a signaling interaction between a terminal device, a network device, and an LMF according to an embodiment of the present application. As shown in Figure 8, the interaction process includes:
[0173] Step 1: The terminal device receives the configuration information sent by the LMF. For details about the configuration information, please refer to the above embodiments.
[0174] Step 2: The terminal device receives a positioning reference signal sent by the network device. For details about the positioning reference signal, please refer to the above embodiments.
[0175] Step 3: The terminal device measures the positioning reference signal based on the configuration information and generates measurement information related to positioning
[0176] Step 4: The terminal device reports the positioning-related measurement information to the LMF. The positioning-related measurement information can be found in the above embodiment.
[0177] Step 5: LMF inputs the positioning-related measurement information into the AI / ML model or function and outputs the location information of the terminal device.
[0178] It is worth noting that FIG8 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG8 above.
[0179] The embodiments of the above application scenarios are merely exemplary of the embodiments of the present application, but the present application is not limited thereto. Appropriate modifications may be made based on the embodiments of the above application scenarios. For example, the embodiments of the above application scenarios may be used individually, or one or more of the embodiments of the above application scenarios may be combined.
[0180] It can be seen from the above embodiment that the terminal device reports measurement information related to positioning, wherein the measurement information related to positioning includes one or more identifiers (IDs) measured in a positioning measurement interval and sample information corresponding to the identifier, and the sample information includes relevant information of a sample group, and the sample group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample group is the same. Thus, the measurement feedback of LMF can be further enhanced, and the advantages of AI / ML models can be better utilized, and the advantages of AI / ML models can be further expanded and more reliable.
[0181] Embodiments of the second aspect
[0182] The present application provides a positioning method, which is described from the perspective of a network device. Furthermore, the method can be applied to the scenario shown in (b) of Figure 5. The positioning method on the network device side is similar to the positioning method on the terminal device side described in the embodiment of the first aspect. For related details, please refer to the specific description of the embodiment of the first aspect.
[0183] FIG9 is another schematic diagram of a positioning method according to an embodiment of the present application. As shown in FIG9 , the method includes:
[0184] 901, the network device sends positioning-related measurement information to the location management function (LMF) on the network side;
[0185] The positioning-related measurement information includes one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifier, the sample point information includes relevant information of a sample point group, the sample point group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group is the same.
[0186] It is worth noting that FIG9 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG9 above.
[0187] In some embodiments, the sample point carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0188] In some embodiments, a network device generates positioning-related measurement information based on a sounding reference signal (SRS). The SRS is transmitted to the network device by a transmission reception point (TRP). In a positioning measurement interval, different TRPs are configured with different IDs, and a TRP is typically associated with a TRP ID (Transmission Reception Point ID).
[0189] In some embodiments, the positioning-related measurement information reported by the network device includes one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifier. For example, the one or more second identifiers are TRP IDs, that is, the TRP IDs corresponding to one or more SRSs detected by the terminal device in the positioning measurement interval. The sample point information corresponding to the one or more second identifiers is information on the sample points of the one or more SRSs detected in the positioning measurement interval.
[0190] In some embodiments, the network device may obtain information about the channel time domain response of the positioning reference signal in various ways, for example, by using a channel estimation or detection algorithm of the positioning reference signal in the same manner as a traditional measurement method.
[0191] In a positioning measurement interval, the terminal device samples one or more positioning reference signals to obtain information on the channel time domain response of the one or more positioning reference signals, that is, the sampling point information of the one or more positioning reference signals. The sampling point information corresponding to a first identifier is the sampling point information of the SRS corresponding to the second identifier. A schematic diagram of the information on the channel time domain response of the positioning reference signal can be seen in Figure 7. Similar to the embodiment of the first aspect, Figure 7 takes a positioning reference signal as an example. The channel time domain response of a positioning reference signal includes a plurality of continuous sampling points in the channel measurement result of the positioning reference signal by the terminal device, such as the continuous plurality of sampling points Sample#1, Sample#2, Sample#3,..., Sample#N shown in Figure 7. The continuous plurality of sampling points constitute the sampling point group of the positioning reference signal. The sampling point information of a positioning reference signal is the relevant information of the sampling point group of the positioning reference signal. The time interval or sampling interval (Sample period) between two consecutive sampling points in a sampling point group is the same, for example, the time interval between Sample#1 and Sample#2 shown in Figure 7 is the same as the time interval between Sample#2 and Sample#3.
[0192] In some embodiments, the time interval or sampling interval between two consecutive sample points in a sample point group is configured by the LMF or is predefined.
[0193] In some embodiments, the sampling interval ΔT of the positioning reference signal by the network device can be defined as: ΔT=2 k ×T c
[0194] Among them, T c =1 / (Δf max ×N f , Δf max =480·10 3 Hz, N f =4096, 0≤k≤5, or k takes other larger values. The value of k can be configured or predefined by the LMF and is usually associated with the bandwidth of the positioning reference signal, that is, the sampling interval is configured by the LMF.
[0195] In some embodiments, the sampling interval is typically configured based on the LMF; alternatively, when the LMF configures multiple sampling intervals for a network device, the sampling interval may also be determined by the network device, for example, the network device determines one of the multiple sampling intervals configured by the LMF as the sampling interval; alternatively, the network device predefines the sampling interval and reports information related to the sampling interval to the LMF.
[0196] In some embodiments, the number of samples in the sample groups corresponding to different second identifiers is the same. For example, if the number of samples in the sample group corresponding to the positioning reference signal shown in FIG7 is N, the number of samples in the sample groups corresponding to other positioning reference signals detected by the network device in the same positioning detection interval is also N, where N is a positive integer.
[0197] In some embodiments, the sample point information includes at least time information of a corresponding sample point group, and the time information is represented by time information of the first sample point in the corresponding sample point group.
[0198] In some embodiments, the time information of the first sample point is represented by an offset value between the time corresponding to the first sample point and a reference time. The offset value is represented by an integer number of sample points after quantization of the sampling interval, such as a sample points or b sample points.
[0199] In some embodiments, in the measurement information related to positioning, reference times corresponding to sample point groups corresponding to different second identifiers are the same.
[0200] In some embodiments, when the reference times corresponding to the sample point groups corresponding to different second identifiers are the same, the reference time is one of the following information:
[0201] The start time of the positioning reference signal measurement interval, where the start time can be represented by the system frame number (SFN), time slot number, or start time of the start symbol corresponding to the start of the measurement;
[0202] That is, the time corresponding to the timestamp in the TRP measurement report of the network device; or
[0203] The reference time is the reference time of the uplink relative time difference of arrival (UL RTOA).
[0204] The reference time of UL RTOA is defined as: T ref =T0+t SRS
[0205] Where T0 is the nominal start time of SFN 0 provided by the SFN initialization time (see [TS 38.455]); t SRS =(10n f +n sf )×10 -3 , where n f is the system frame number of SRS, n sf It is the subframe number or slot number of SRS.
[0206] In some embodiments, to reduce the overhead of time information feedback, the reference time may also take into account symbol granularity. For example, the reference time may be the system frame number (SFN), slot number, and start time of the start symbol of the detected SRS.
[0207] In some embodiments, the time offset between the first sample of each sample group and the reference time may be reported as the time information of the first sample of each sample group.
[0208] In some embodiments, in the measurement information related to positioning, the reference times corresponding to the sample point groups corresponding to different second identifiers may also be different.
[0209] For example, in this case, the reference time corresponding to each sample point group is the system frame number (SFN), time slot number, and start symbol corresponding to the corresponding second identifier in the positioning measurement interval. The system frame number, time slot number, and start symbol are determined based on the SRS scheduling transmission information of the terminal's serving cell. Alternatively, the reference time corresponding to each sample point group is the time corresponding to the timestamp in the measurement report.
[0210] In some embodiments, the reference time is predefined, or the reference time is configured by LMF.
[0211] In some embodiments, the network device determines each first sample point in each sample point group respectively.
[0212] In some embodiments, the network device obtains the first sample point based on detection. For example, corresponding to an SRS resource corresponding to a TRP, channel measurement information can be obtained based on algorithms such as correlation detection, wherein the first path can be determined using conventional methods.
[0213] In some embodiments, the first sample point in the sample point group determined by the network device is:
[0214] In the positioning measurement interval, the network device determines a sample point corresponding to the first path in a process of detecting a positioning reference signal corresponding to the second identifier.
[0215] In some embodiments, to avoid differences caused by different methods for confirming the first path, or to avoid differences caused by various timing deviations, a time deviation can be introduced. The network device can adjust the time position corresponding to the reported sample point based on the time deviation. For example, the sample point corresponding to the time deviation before the first path confirmed by the conventional method is agreed to be the first sample point. For example, the first sample point in the sample point group determined by the network device is:
[0216] The sample point corresponding to the time corresponding to the first path is shifted forward by a third time value, wherein the third time value is configured by the LMF or is predefined.
[0217] In some embodiments, the network device determines the first sample point based on predefined or LMF configured information. For example, for positioning measurements configured or initiated by LMF, in a measurement interval, for channel measurement of a TRP, the first sample point (first sample point) of the system frame number (SFN), time slot number (slot number), and start symbol (symbol) corresponding to the corresponding SRS resource can be used as the first sample point of the channel measurement reporting sample point group. For different TRPs, the corresponding SFN, slot, and first sample point (first sample point) of the PRS start symbol may be different.
[0218] In some embodiments, the first sample point in the sample point group determined by the network device is:
[0219] In the measurement interval, the system frame number (SFN) and the time slot number (slot number) corresponding to the second identifier corresponding to the sample point group, and the sample point corresponding to the start time of the start symbol (symbol).
[0220] In some embodiments, in order to avoid measurement errors caused by various timing deviations, a certain time offset can also be introduced. In this way, the sample point corresponding to the time offset before the above-mentioned first sample point is used as the first sample point of the reported sample point group. The time offset value can be predefined or configured by the LMF. For example, the first sample point in the sample point group determined by the network device is:
[0221] The system frame number (SFN) and the time slot number corresponding to the second identifier corresponding to the sample group, and the sample corresponding to the time corresponding to the start time of the start symbol that is offset forward by a fourth time value. The fourth time value is configured by the LMF or is predefined.
[0222] In some embodiments, the LMF configures the network device with configuration information related to a method for determining the first sample in the sample group.
[0223] In some embodiments, when reporting to the LMF, for a TRP identifier, in addition to the time information of the corresponding sample group, the network device also reports one or more of the following aspects for the channel measurement result (or the sample information also includes one or more of the following aspects):
[0224] Sampling point quantity information or sampling interval information or sampling length information;
[0225] Power or amplitude information of the corresponding sample point group;
[0226] Phase information of the corresponding sample group.
[0227] In some embodiments, the number of sampling points, sampling interval, and sampling length can be configured or predefined by the LMF for the network device.
[0228] In some embodiments, the network device may determine the number of sampling points or sampling length required for measurement and reporting based on the delay of the measurement channel. Therefore, the sampling length or the number of sampling points may not be or not be entirely determined based on the configuration of the LMF.
[0229] In some embodiments, the power or amplitude information, and the phase information may be represented based on quantized bits.
[0230] In some embodiments, the LMF configures the network device to report content. For example, the LMF configures the network device to report one or more of the following: time information, power or amplitude information, phase information, number of sampling points or sampling length information, sampling interval information, etc., related to channel measurement.
[0231] Among them, when the LMF configures the network device to report time information related to channel measurement, the network device reports the time information of the first sample point of each sample point group according to the aforementioned embodiment; when the LMF configures the network device to report power or amplitude information related to channel measurement, the network device reports the channel power or amplitude information corresponding to the sample point position of each sample point group, and the power or amplitude information can be based on a quantized bit representation; when the LMF configures the network device to report phase information related to channel measurement, the network device reports the angle information corresponding to the channel power or amplitude corresponding to the sample point position of each sample point group, and the phase information can be based on a quantized bit representation.
[0232] In some embodiments, the LMF configures information such as the system frame number offset (SFN offset), subframe offset, or slot offset between the sending and receiving points for the network device.
[0233] In some embodiments, the network device may report measurement information related to positioning to the LMF based on detection sample points, or the network device may report measurement information related to positioning to the LMF based on detection paths. For example, the network device reports measurement information related to positioning to the LMF based on detection sample points.
[0234] In some embodiments, the LMF configures a reporting method for the network device, such as a detection point-based reporting method or a path-based reporting method. For example, the network device is configured by the LMF to use a sample-based reporting method.
[0235] In some embodiments, the network device reports positioning-related measurement information to the LMF using at least one of the following reporting types:
[0236] Channel Impulse Response (CIR);
[0237] Power Delay Profile (PDP);
[0238] Delay Profile (DP).
[0239] When using CIR to report positioning-related measurement information, the time information, amplitude or power information, and phase information corresponding to the sample point (group) must be reported. When using PDP to report positioning-related measurement information, the time information and amplitude or power information corresponding to the sample point (group) must be reported. When using DP to report positioning-related measurement information, the time information corresponding to the sample point (group) must be reported.
[0240] In some embodiments, the LMF configures the reporting type for the network device. Based on the requirements of its AI / ML function, the LMF configures the network device to report channel measurement information that matches the input format of its AI / ML model.
[0241] For example, the channel measurement information may be in the form of one or more of Channel Impulse Response (CIR), Power Delay Profile (PDP), and Delay Profile (DP).
[0242] In some embodiments, the LMF indicates the type of report reported by the network device and / or parameters related to the report through relevant configuration information.
[0243] In some embodiments, the method further comprises:
[0244] The network device receives configuration information sent by the location management network element on the network side.
[0245] In some embodiments, the configuration information includes the content reported by the network device, the reporting method, the reporting type, the measurement parameters related to positioning, the method for determining the first sample point of the sample point group, etc. For details, please refer to the above embodiments and will not be repeated here.
[0246] In some embodiments, the content reported by the network device includes at least one of the following information:
[0247] Reporting configuration of measurement result time information;
[0248] Configuration for reporting measurement result power or amplitude information;
[0249] Configuration for reporting phase information of measurement results.
[0250] In some embodiments, the reporting configuration of the measurement result time information includes at least one of the following information: information related to the sampling interval; information related to the sampling length or the number of sampling points; information on the reference time of the first sample point; information on the method for determining the first sample point; information on the time offset of the first sample point; please refer to the above embodiments for details, which will not be repeated here.
[0251] The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following information: a quantization interval of the power or amplitude; a quantization range of the power or amplitude; a quantization bit of the power or amplitude;
[0252] The reporting configuration of the measurement result phase information includes phase quantization information.
[0253] Figure 10 is a diagram of a signaling interaction between a terminal device, a network device, and an LMF according to an embodiment of the present application. As shown in Figure 10, the interaction process includes:
[0254] Step 1: The network device receives the configuration information sent by the LMF. For details about the configuration information, please refer to the above embodiments.
[0255] Step 2: The network device reports the report-related information it determines, such as the sampling interval, the number of sampling points, the sampling length, or other information.
[0256] Step 3: The network device receives the positioning reference signal sent by the terminal device. For details about the positioning reference signal, please refer to the above embodiments.
[0257] Step 4: The network device measures the positioning reference signal based on the configuration information and generates measurement information related to positioning.
[0258] Step 5: The network device reports the positioning-related measurement information to the LMF. The positioning-related measurement information can be found in the above embodiment.
[0259] Step 6: LMF inputs the positioning-related measurement information into the AI / ML model or function and outputs the location information of the terminal device.
[0260] In some embodiments, step 2 is optional. When the network device determines at least part of the information related to the report, for example, the network device determines the sampling interval, the number of sampling points, the sampling length or other information, the interaction process may include step 2; when the information related to the report is all configured by the LMF, the LMF sends the configuration information to the network device through the above step 1, and the interaction process may not include the above step 2.
[0261] It is worth noting that FIG10 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG10 above.
[0262] The embodiments of the above application scenarios are merely exemplary of the embodiments of the present application, but the present application is not limited thereto. Appropriate modifications may be made based on the embodiments of the above application scenarios. For example, the embodiments of the above application scenarios may be used individually, or one or more of the embodiments of the above application scenarios may be combined.
[0263] As can be seen from the above embodiment, the network device reports measurement information related to positioning to the LMF, wherein the measurement information related to positioning includes one or more identifiers (IDs) measured in a positioning measurement interval and sample information corresponding to the identifier, and the sample information includes relevant information of a sample group, the sample group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample group is the same. As a result, the measurement feedback to the LMF can be further enhanced, and the advantages of the AI / ML model can be better utilized, and the advantages of the AI / ML model can be further expanded and more reliable.
[0264] Embodiments of the third aspect
[0265] An embodiment of the present application provides a positioning method, which is described from the LMF side, corresponding to the embodiment of the first aspect and the embodiment of the second aspect, and the contents that are the same as the embodiments of the first aspect and the second aspect will not be repeated.
[0266] FIG11 is another schematic diagram of a positioning method according to an embodiment of the present application. As shown in FIG8 , the method includes:
[0267] 1101: The network side location management element sends configuration information to the network device or terminal device.
[0268] The configuration information includes the configuration of the reporting mode of the channel measurement and / or the configuration of the reporting content of the channel measurement,
[0269] The reporting method of the channel measurement includes at least one of the following: channel impulse response, power delay spectrum, delay spectrum,
[0270] The configuration of the reporting content of the channel measurement at least includes the reporting configuration of time information.
[0271] It is worth noting that FIG11 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto. For example, the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced. Those skilled in the art may make appropriate modifications based on the above content, and are not limited to the description of FIG11 above.
[0272] In some embodiments, the reporting mode of the channel measurement is configured in an explicit manner; and / or the reporting content of the channel measurement is configured in an implicit manner,
[0273] The configuration of the reporting content of the channel measurement also includes at least one of a reporting configuration of power or amplitude information and a reporting configuration of measurement result phase information.
[0274] In some embodiments, the reporting configuration of the time information includes at least one of the following information:
[0275] Information related to the sampling interval;
[0276] Information related to sampling length or number of sampling points;
[0277] Information on the reference time of the first sample point;
[0278] information on how the first sample point was determined;
[0279] Information on the time offset of the first sample point;
[0280] In some embodiments, the reporting configuration of the power or amplitude information includes at least one of the following information:
[0281] quantization interval of power or amplitude;
[0282] the quantization range of power or amplitude;
[0283] quantized bits of power or amplitude;
[0284] The phase information reporting configuration includes phase quantization information.
[0285] In some embodiments, the method further comprises:
[0286] The network-side location management element configures the reporting type and / or reporting format based on the AI / ML model or function;
[0287] The configuration of the reporting type and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information;
[0288] The configuration of the time information reporting format includes at least one of the following: reference time, sample time offset information, and sample number information;
[0289] The reporting configuration of the power or amplitude information includes: quantization bit number information;
[0290] The reporting configuration of the phase information includes: quantization bit number information.
[0291] In some embodiments, the method further comprises:
[0292] The network-side location management element configures the reporting type and / or reporting format based on the monitoring of the AI / ML model or function.
[0293] The configuration of the reported content and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information;
[0294] The configuration of the time information reporting format includes at least one of the following: reference time, number of sample points, and sampling interval;
[0295] The reporting configuration of the power or amplitude information includes: quantized bit number information, sampling more bits than the conventional reporting configuration;
[0296] The reporting configuration of the phase information includes at least one of the following: quantized bit number information, sampling more bits than the conventional reporting configuration.
[0297] In some embodiments, the method further comprises:
[0298] The network side location management element (LMF) configures the reporting type and / or reporting format based on the monitoring of the AI / ML model or function of the network side location management element.
[0299] The configuration of the reported content and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information;
[0300] The configuration of the time information reporting format includes at least one of the following: reference time, number of sample points, and sampling interval;
[0301] The reporting configuration of the power or amplitude information includes: quantized bit number information, sampling more bits than the conventional reporting configuration;
[0302] The reporting configuration of the phase information includes at least one of the following: quantized bit number information, sampling more bits than the conventional reporting configuration.
[0303] LMF can then send monitoring-related configuration information to the terminal device or network device based on monitoring requirements. In this case, the type of reporting by the terminal device or network device is consistent with the usual channel measurement reporting, the difference may lie in the accuracy of the reporting. LMF can configure higher-precision reporting, such as reducing the sampling interval, increasing the number of reporting samples, and increasing the number of bits for power and phase quantization, thereby improving reporting accuracy.
[0304] In some embodiments, the method further comprises:
[0305] The network-side location management network element inputs at least a portion of the received measurement information into an AI / ML model and outputs location information.
[0306] The specific contents of the above embodiments can be referred to the description of the embodiments of the first and second aspects, and will not be repeated here.
[0307] It can be seen from the above embodiments that LMF sends configuration information to the network device or terminal device to configure the reporting method of channel measurement and / or the reporting content of channel measurement, so that the terminal device or network device can report measurement information based on the configuration information.
[0308] Moreover, in order to monitor the performance of its AI / ML, LMF may expect the terminal device or network device to perform higher-precision measurements and reports. Through the above embodiment, LMF can send monitoring-related configuration information to the terminal device or network device according to monitoring needs. In this case, the type of reporting by the terminal device or network device is consistent with the usual channel measurement reporting. The difference may be in the accuracy of the reporting. LMF can configure higher-precision reporting, such as reducing the sampling interval, increasing the number of reported sample points, and increasing the number of bits for power and phase quantization. In this way, the measurement feedback to LMF can be further enhanced, and the advantages of the AI / ML model can be better utilized, and the advantages of the AI / ML model can be further expanded and more reliable.
[0309] In addition, LMF can decide to start or stop the AI function based on the performance of the AI / ML function, and adjust the channel measurement reporting method accordingly. For example, it can configure the terminal device or network device to report based on sample points or paths.
[0310] Embodiments of the fourth aspect
[0311] The embodiment of the present application provides a positioning device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, which corresponds to the embodiment of the first aspect, and the same contents as the embodiment of the first aspect are not repeated here.
[0312] FIG12 is a schematic diagram of a positioning device according to an embodiment of the present application. As shown in FIG12 , the positioning device 1200 includes:
[0313] A first sending unit 1201 is configured to send positioning-related measurement information to a location management function (LMF) on the network side;
[0314] The positioning-related measurement information includes one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifier, the sample point information includes relevant information of a sample point group, the sample point group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group is the same.
[0315] In some embodiments, the sample point carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0316] In some embodiments, the first identifier is a positioning reference signal identifier (Positioning Reference Signal ID, PRS ID) or a TRP identifier (Transmission Reception Point ID, TRP ID).
[0317] In some embodiments, the sample point information includes at least time information of a corresponding sample point group, and the time information is represented by time information of the first sample point in the corresponding sample point group.
[0318] In some embodiments, the time information of the first sample point is represented by an offset value between the time corresponding to the first sample point and a reference time.
[0319] In some embodiments, in the measurement information related to positioning, reference times corresponding to sample point groups corresponding to different first identifiers are the same; or
[0320] In the measurement information related to positioning, the reference times corresponding to the sample point groups corresponding to different first identifiers are different.
[0321] In some embodiments, when the reference times corresponding to the sample groups corresponding to different first identifiers are the same,
[0322] The reference time is the start time of the positioning measurement interval, and the start time can be represented by the system frame number (SFN), time slot number, or start time of the start symbol corresponding to the start of the measurement; or
[0323] The reference time is the time corresponding to the timestamp information in the measurement report; or
[0324] The reference time is the time corresponding to the earliest first sample point in each sample point group; or
[0325] The reference time is the system frame number (SFN), slot number, or start time of the start symbol corresponding to the first identifier of the earliest first sample in each sample group in the positioning measurement interval; or
[0326] The reference time is the system frame number, time slot number, and start time of the start symbol corresponding to the first identifier configured by the location management network element in the positioning measurement interval.
[0327] In some embodiments, when the reference times corresponding to the sample groups corresponding to different first identifiers are different, the reference time corresponding to each sample group is the system frame number (SFN), time slot number, or start time of the start symbol corresponding to the corresponding first identifier in the positioning measurement interval.
[0328] In some embodiments, the reference time is predefined, or the reference time is configured by LMF.
[0329] In some embodiments, the terminal device determines each first sample point in each sample point group respectively;
[0330] And the first sample point in the sample point group determined by the terminal device is:
[0331] a sample point corresponding to the first path determined by the terminal device in a process of detecting a positioning reference signal corresponding to the first identifier in the positioning measurement interval; or
[0332] The sample point corresponding to the time corresponding to the first path is shifted forward by a first time value; wherein the first time value is configured by the LMF or is predefined; or
[0333] In the positioning measurement interval, the system frame number (SFN) and the time slot number corresponding to the first identifier corresponding to the sample group, and the sample corresponding to the start time of the start symbol; or
[0334] The system frame number (SFN) and the time slot number (slot number) corresponding to the first identifier corresponding to the sample group, and the sample point corresponding to the time corresponding to the start time of the start symbol (symbol) offset forward by a second time value; wherein the second time value is configured by the LMF or is predefined.
[0335] In some embodiments, the positioning device 1200 further includes:
[0336] A first receiving unit 1202 is configured to receive configuration information sent by a location management network element on the network side;
[0337] The configuration information includes at least one of the following information: reporting configuration of measurement result time information; reporting configuration of measurement result power or amplitude information; reporting configuration of measurement result phase information; and indication information of reporting type.
[0338] The reporting configuration of the measurement result time information includes at least one of the following information: information related to the sampling interval; information related to the sampling length or the number of sampling points; information about the reference time of the first sample point; information about the determination method of the first sample point; information about the time offset of the first sample point;
[0339] The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following information: a quantization interval of the power or amplitude; a quantization range of the power or amplitude; a quantization bit of the power or amplitude;
[0340] The reporting configuration of the measurement result phase information includes phase quantization information;
[0341] The reporting type indication information is used to indicate that the reporting type is at least one of the following: channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0342] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The positioning device 1200 may also include other components or modules. For details of these components or modules, reference may be made to related technologies.
[0343] In addition, for the sake of simplicity, FIG12 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
[0344] It can be seen from the above embodiment that the terminal device reports measurement information related to positioning to the LMF, wherein the measurement information related to positioning includes one or more identifiers (IDs) measured in a positioning measurement interval and sample information corresponding to the identifier, and the sample information includes relevant information of a sample group, and the sample group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample group is the same. Thus, the measurement feedback to the LMF can be further enhanced, and the advantages of the AI / ML model can be better utilized, and the advantages of the AI / ML model can be further expanded and more reliable.
[0345] Embodiments of the fifth aspect
[0346] The present application provides a positioning device, which may be, for example, a network device or one or more components or assemblies configured on the network device, corresponding to the embodiment of the second aspect, and the contents identical to those of the embodiments of the first and second aspects are not repeated here.
[0347] FIG13 is another schematic diagram of a positioning device according to an embodiment of the present application. As shown in FIG13 , the positioning device 1300 includes:
[0348] The second sending unit 1301 is configured to send measurement information related to positioning to a location management function (LMF) on the network side.
[0349] The measurement information related to positioning includes one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifiers.
[0350] The sample point information includes relevant information of a sample point group, and the sample point group includes a plurality of consecutive sample points in the channel measurement result.
[0351] The time intervals between two consecutive sample points in the sample point group are the same.
[0352] In some embodiments, the sample point carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0353] In some embodiments, the second identifier is a TRP identifier (Transmission Reception Point ID, TRP ID).
[0354] In some embodiments, the sample point information includes at least time information of a corresponding sample point group, and the time information is represented by time information of the first sample point in the corresponding sample point group.
[0355] In some embodiments, the time information of the first sample point is represented by an offset value between the time corresponding to the first sample point and a reference time.
[0356] In some embodiments, in the measurement information related to positioning, reference times corresponding to sample point groups corresponding to different first identifiers are the same; or
[0357] In the measurement information related to positioning, the reference times corresponding to the sample point groups corresponding to different first identifiers are different.
[0358] In some embodiments, when the reference times corresponding to the sample groups corresponding to different first identifiers are the same,
[0359] The reference time is the start time of the positioning reference signal measurement interval, and the start time can be represented by the system frame number (SFN), time slot number, or start time of the start symbol corresponding to the start of the measurement; or
[0360] The reference time is the time corresponding to the timestamp information in the measurement report; or
[0361] The reference time is the reference time of the uplink relative time difference of arrival (UL RTOA).
[0362] In some embodiments, when the reference times corresponding to the sample groups corresponding to different first identifiers are different, the reference time corresponding to each sample group is the system frame number (SFN), time slot number, or start time of the start symbol corresponding to the corresponding first identifier in the positioning measurement interval.
[0363] In some embodiments, the reference time is predefined, or the reference time is configured by LMF.
[0364] In some embodiments, the network device determines each first sample point in each sample point group respectively;
[0365] And the first sample point in the sample point group determined by the network device is:
[0366] a sample point corresponding to the first path determined by the network device in a process of detecting a positioning reference signal corresponding to the first identifier in the positioning measurement interval; or
[0367] A sample point corresponding to a time after the time corresponding to the first path is shifted forward by a third time value; wherein the third time value is configured by the LMF or is predefined; or
[0368] In the measurement interval, the system frame number (SFN) and the time slot number corresponding to the first identifier corresponding to the sample group, and the sample corresponding to the start time of the start symbol; or
[0369] A system frame number (SFN) and a time slot number (slot number) corresponding to the first identifier corresponding to the sample group, and a sample corresponding to a time corresponding to a start time of a start symbol that is offset forward by a fourth time value, where the fourth time value is configured by the LMF or is predefined.
[0370] In some embodiments, the positioning device 1300 further includes:
[0371] The second receiving unit 1302 is configured to receive configuration information sent by a location management network element on the network side.
[0372] The configuration information includes at least one of the following information: reporting configuration of measurement result time information; reporting configuration of measurement result power or amplitude information; reporting configuration of measurement result phase information; and indication information of reporting type.
[0373] The reporting configuration of the measurement result time information includes at least one of the following information: information related to the sampling interval; information related to the sampling length or the number of sampling points; information about the reference time of the first sample point; information about the determination method of the first sample point; information about the time offset of the first sample point;
[0374] The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following information: a quantization interval of the power or amplitude; a quantization range of the power or amplitude; a quantization bit of the power or amplitude;
[0375] The reporting configuration of the measurement result phase information includes phase quantization information;
[0376] The reporting type indication information is used to indicate that the reporting type is at least one of the following: channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0377] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The positioning device 1300 may also include other components or modules. For details of these components or modules, reference may be made to related technologies.
[0378] In addition, for the sake of simplicity, FIG13 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
[0379] As can be seen from the above embodiment, the network device reports measurement information related to positioning to the LMF, wherein the measurement information related to positioning includes one or more identifiers (IDs) measured in a positioning measurement interval and sample information corresponding to the identifier, and the sample information includes relevant information of a sample group, the sample group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample group is the same. As a result, the measurement feedback to the LMF can be further enhanced, and the advantages of the AI / ML model can be better utilized, and the advantages of the AI / ML model can be further expanded and more reliable.
[0380] Embodiments of the sixth aspect
[0381] The present application provides a positioning device. The device may be, for example, an LMF, or one or more components or assemblies configured on the LMF, which corresponds to the embodiment of the third aspect, and the contents that are the same as those of the embodiments of the first to third aspects are not repeated here.
[0382] FIG14 is another schematic diagram of a positioning device according to an embodiment of the present application. As shown in FIG14 , the positioning device 1400 includes:
[0383] The third sending unit 1401 is used to send configuration information to the network device or terminal device.
[0384] The configuration information includes the configuration of the reporting mode of the channel measurement and / or the configuration of the reporting content of the channel measurement,
[0385] The reporting method of the channel measurement includes at least one of the following: channel impulse response, power delay spectrum, delay spectrum,
[0386] The configuration of the reporting content of the channel measurement at least includes the reporting configuration of time information.
[0387] In some embodiments, the reporting mode of the channel measurement is configured in an explicit manner; and / or the reporting content of the channel measurement is configured in an implicit manner,
[0388] The configuration of the reporting content of the channel measurement also includes at least one of a reporting configuration of power or amplitude information and a reporting configuration of measurement result phase information.
[0389] In some embodiments, the reporting configuration of the measurement result time information includes at least one of the following information: information related to the sampling interval; information related to the sampling length or the number of sampling points; information about the reference time of the first sample point; information about the determination method of the first sample point; information about the time offset of the first sample point;
[0390] The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following information: a quantization interval of the power or amplitude; a quantization range of the power or amplitude; a quantization bit of the power or amplitude;
[0391] The reporting configuration of the measurement result phase information includes phase quantization information.
[0392] In some embodiments, the positioning device 1400 further includes:
[0393] A first determining unit 1402, which configures a reporting type and / or a reporting format based on an AI / ML model or function of a location management network element on the network side;
[0394] The configuration of the reporting type and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information;
[0395] The configuration of the time information reporting format includes at least one of the following: reference time, sample time offset information, and sample number information;
[0396] The reporting configuration of the power or amplitude information includes: quantization bit number information;
[0397] The reporting configuration of the phase information includes: quantization bit number information.
[0398] In some embodiments, the positioning device 1400 further includes:
[0399] The second determining unit 1403 configures the reporting type and / or the reporting format based on the monitoring of the AI / ML model or function of the network-side location management network element.
[0400] The configuration of the reported content and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information;
[0401] The configuration of the time information reporting format includes at least one of the following: reference time, number of sample points, and sampling interval;
[0402] The reporting configuration of the power or amplitude information includes: quantized bit number information, sampling more bits than the conventional reporting configuration;
[0403] The reporting configuration of the phase information includes at least one of the following: quantized bit number information, sampling more bits than the conventional reporting configuration.
[0404] LMF can then send monitoring-related configuration information to the terminal device or network device based on monitoring requirements. In this case, the type of reporting by the terminal device or network device is consistent with the usual channel measurement reporting, the difference may lie in the accuracy of the reporting. LMF can configure higher-precision reporting, such as reducing the sampling interval, increasing the number of reporting samples, and increasing the number of bits for power and phase quantization, thereby improving reporting accuracy.
[0405] In some embodiments, the positioning device 1400 further includes:
[0406] a third receiving unit 1404 configured to receive first measurement information related to positioning from a terminal device; wherein the first measurement information related to positioning includes one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifier, the sample point information including relevant information of a sample point group, the sample point group including multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group being the same; or
[0407] Second measurement information related to positioning is received from a terminal device, wherein the second measurement information related to positioning includes one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifier, the sample point information includes relevant information of a sample point group, the sample point group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group is the same.
[0408] In some embodiments, the sample point carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0409] It is worth noting that the above description only describes the components or modules related to the present application, but the present application is not limited thereto. The positioning device 1400 may also include other components or modules. For details of these components or modules, reference may be made to related technologies.
[0410] In addition, for the sake of simplicity, FIG14 only illustrates the connection relationship or signal direction between various components or modules. However, it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
[0411] It can be seen from the above embodiments that LMF sends configuration information to the network device or terminal device to configure the reporting method of channel measurement and / or the reporting content of channel measurement, so that the terminal device or network device can report measurement information based on the configuration information.
[0412] Moreover, in order to monitor the performance of its AI / ML, LMF may expect the terminal device or network device to perform higher-precision measurements and reports. Through the above embodiment, LMF can send monitoring-related configuration information to the terminal device or network device according to monitoring needs. In this case, the type of reporting by the terminal device or network device is consistent with the usual channel measurement reporting. The difference may be in the accuracy of the reporting. LMF can configure higher-precision reporting, such as reducing the sampling interval, increasing the number of reported sample points, and increasing the number of bits for power and phase quantization. In this way, the measurement feedback to LMF can be further enhanced, and the advantages of the AI / ML model can be better utilized, and the advantages of the AI / ML model can be further expanded and more reliable.
[0413] Embodiments of the seventh aspect
[0414] An embodiment of the present application provides a terminal device, which includes the positioning device as described in the embodiment of the fourth aspect.
[0415] Figure 15 is a schematic block diagram of the system architecture of a terminal device according to an embodiment of the present application. As shown in Figure 15 , terminal device 1500 may include a processor 1510 and a memory 1520; memory 1520 is coupled to processor 1510. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.
[0416] In one embodiment, the functionality of the positioning device may be integrated into the processor 1510 .
[0417] Processor 1510 is configured to: send measurement information related to positioning to a location management function (LMF) on the network side, where the measurement information related to positioning includes one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifier, where the sample point information includes relevant information of a sample point group, where the sample point group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group is the same.
[0418] In another embodiment, the positioning device may be configured separately from the processor 1510 . For example, the positioning device may be configured as a chip connected to the processor 1510 , and the functions of the positioning device may be implemented under the control of the processor 1510 .
[0419] As shown in FIG15 , the terminal device 1500 may further include: a communication module 1530, an input unit 1540, a display 1550, and a power supply 1560. It is worth noting that the terminal device 1500 does not necessarily include all the components shown in FIG15 ; in addition, the terminal device 1500 may also include components not shown in FIG15 , and reference may be made to related art for details.
[0420] As shown in FIG. 15 , the processor 1510 is sometimes also referred to as a controller or an operation control, and may include a microprocessor or other processor device and / or logic device. The processor 1510 receives input and controls the operation of various components of the terminal device 1500 .
[0421] Memory 1520 may be, for example, one or more of a cache, flash memory, a hard drive, removable media, volatile memory, non-volatile memory, or other suitable devices. It may store various data and may also store programs for executing related information. Processor 1510 may execute the programs stored in memory 1520 to implement information storage or processing. The functions of other components are similar to those of existing devices and are not further described here. Each component of terminal device 1500 may be implemented using dedicated hardware, firmware, software, or a combination thereof without departing from the scope of the present invention.
[0422] It can be seen from the above embodiment that the terminal device reports measurement information related to positioning to the LMF, wherein the measurement information related to positioning includes one or more identifiers (IDs) measured in a positioning measurement interval and sample information corresponding to the identifier, and the sample information includes relevant information of a sample group, and the sample group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample group is the same. Thus, the measurement feedback to the LMF can be further enhanced, and the advantages of the AI / ML model can be better utilized, and the advantages of the AI / ML model can be further expanded and more reliable.
[0423] Embodiments of the eighth aspect
[0424] An embodiment of the present application provides a network device, which includes the positioning device as described in the embodiment of the fifth aspect, and the network device is a first network device.
[0425] Figure 16 is a schematic block diagram of the system configuration of a first network device according to an embodiment of the present application. As shown in Figure 16 , first network device 1600 may include a processor 1610 and a memory 1620 ; the memory 1620 is coupled to the processor 1610 . The memory 1620 may store various data and may also store an information processing program 1630 , which is executed under the control of the processor 1610 .
[0426] In one embodiment, the functionality of the positioning device may be integrated into the processor 1610 .
[0427] Processor 1610 can be configured to: send measurement information related to positioning to a location management function (LMF) on the network side, where the measurement information related to positioning includes one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifier, where the sample point information includes relevant information of a sample point group, where the sample point group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample point group is the same.
[0428] In another embodiment, the positioning device may be configured separately from the processor 1610 . For example, the positioning device may be configured as a chip connected to the processor 1610 , and the functions of the positioning device may be implemented under the control of the processor 1610 .
[0429] In addition, as shown in Figure 16, the first network device 1600 may further include: a transceiver 1640 and an antenna 1650; wherein, the functions of the above components are similar to those in the prior art and are not further described here. It is worth noting that the first network device 1600 does not necessarily include all the components shown in Figure 16; in addition, the first network device 1600 may also include components not shown in Figure 16, and reference may be made to the prior art.
[0430] As can be seen from the above embodiment, the network device reports measurement information related to positioning to the LMF, wherein the measurement information related to positioning includes one or more identifiers (IDs) measured in a positioning measurement interval and sample information corresponding to the identifier, and the sample information includes relevant information of a sample group, the sample group includes multiple consecutive sample points in the channel measurement result, and the time interval between two consecutive sample points in the sample group is the same. As a result, the measurement feedback to the LMF can be further enhanced, and the advantages of the AI / ML model can be better utilized, and the advantages of the AI / ML model can be further expanded and more reliable.
[0431] Embodiments of the ninth aspect
[0432] An embodiment of the present application provides a network device, which includes the positioning device as described in the embodiment of the sixth aspect, and the network device is a second network device.
[0433] Figure 17 is a schematic block diagram of the system configuration of a second network device according to an embodiment of the present application. As shown in Figure 17 , second network device 1700 may include a processor 1710 and a memory 1720 ; the memory 1720 is coupled to the processor 1710 . The memory 1720 may store various data and may also store an information processing program 1730 , which is executed under the control of the processor 1710 .
[0434] In one embodiment, the functionality of the positioning device may be integrated into the processor 1710 .
[0435] Processor 1710 can be configured as: the network side location management network element sends configuration information to the network device or terminal device, the configuration information includes the configuration of the reporting method of the channel measurement and / or the configuration of the reporting content of the channel measurement, the reporting method of the channel measurement includes at least one of the following: channel impulse response, power delay spectrum, delay spectrum, and the configuration of the reporting content of the channel measurement includes at least the reporting configuration of the time information.
[0436] In another embodiment, the positioning device may be configured separately from the processor 1710 . For example, the positioning device may be configured as a chip connected to the processor 1710 , and the functions of the positioning device may be implemented under the control of the processor 1710 .
[0437] In addition, as shown in Figure 17, the second network device 1700 may further include: a transceiver 1740 and an antenna 1750; wherein, the functions of the above components are similar to those in the prior art and are not further described here. It is worth noting that the second network device 1700 does not necessarily include all the components shown in Figure 17; in addition, the second network device 1700 may also include components not shown in Figure 17, and reference may be made to the prior art for such components.
[0438] It can be seen from the above embodiments that LMF sends configuration information to the network device or terminal device to configure the reporting method of channel measurement and / or the reporting content of channel measurement, so that the terminal device or network device can report measurement information based on the configuration information.
[0439] Moreover, in order to monitor the performance of its AI / ML, LMF may expect the terminal device or network device to perform higher-precision measurements and reports. Through the above embodiment, LMF can send monitoring-related configuration information to the terminal device or network device according to monitoring needs. In this case, the type of reporting by the terminal device or network device is consistent with the usual channel measurement reporting. The difference may be in the accuracy of the reporting. LMF can configure higher-precision reporting, such as reducing the sampling interval, increasing the number of reported sample points, and increasing the number of bits for power and phase quantization. As a result, the measurement feedback to LMF can be further enhanced, and the advantages of the AI / ML model can be better utilized, and the advantages of the AI / ML model can be further expanded and more reliable.
[0440] In addition, LMF can decide to start or stop the AI function based on the performance of the AI / ML function, and adjust the channel measurement reporting method accordingly. For example, it can configure the terminal device or network device to report based on sample points or paths.
[0441] Embodiments of the tenth aspect
[0442] An embodiment of the present application provides a communication system, comprising at least one of the terminal device described in the embodiment of the seventh aspect, the first network device described in the embodiment of the eighth aspect, and the second network device described in the embodiment of the ninth aspect.
[0443] For example, the structure of the communication system can be referred to FIG1 .
[0444] As shown in Figure 1, the communication system 100 includes a first network device 101, a second network device (LMF) 102 and a terminal device 103. The terminal device 103 is the same as the terminal device recorded in the embodiment of the seventh aspect, the first network device 101 is the same as the network device recorded in the embodiment of the eighth aspect, and the second network device 102 is the same as the network device recorded in the embodiment of the ninth aspect. The repeated content will not be repeated again.
[0445] The above devices and methods of the present application can be implemented by hardware or by a combination of hardware and software. The present application relates to such a computer-readable program that, when executed by a logic component, enables the logic component to implement the devices or components described above, or enables the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, etc.
[0446] The method / device described in conjunction with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams shown in the figure and / or one or more combinations of functional block diagrams can correspond to various software modules of the computer program flow or to various hardware modules. These software modules can respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by solidifying these software modules, for example, using a field programmable gate array (FPGA).
[0447] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium may be coupled to a processor so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be an integral part of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.
[0448] One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application. One or more of the functional blocks and / or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.
[0449] The present application has been described above in conjunction with specific embodiments. However, those skilled in the art should understand that these descriptions are merely illustrative and are not intended to limit the scope of protection of the present application. Those skilled in the art may make various modifications and variations to the present application based on the spirit and principles of the present application, and such modifications and variations are also within the scope of the present application.
[0450] Regarding the implementation methods including the above embodiments, the following additional notes are also disclosed:
[0451] 1. A positioning method, applied to a terminal device, wherein the method comprises:
[0452] Sending positioning-related measurement information to the location management function (LMF) on the network side,
[0453] The measurement information related to positioning includes one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifiers.
[0454] The sample point information includes relevant information of a sample point group, and the sample point group includes a plurality of consecutive sample points in the channel measurement result.
[0455] The time intervals between two consecutive sample points in the sample point group are the same.
[0456] 2. The method according to Supplement 1, wherein:
[0457] The number of samples in the sample group corresponding to different first identifiers is the same; the sample carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0458] 3. The method according to Supplement 1, wherein:
[0459] The sample point information includes time information of the corresponding sample point group, and / or power or amplitude information of the corresponding sample point group, and / or phase information of the corresponding sample point group;
[0460] The time information is represented by the time information of the first sample point in the corresponding sample point group.
[0461] 4. A positioning method, applied to a network device, wherein the method comprises:
[0462] Sending positioning-related measurement information to the location management function (LMF) on the network side,
[0463] The measurement information related to positioning includes one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifiers.
[0464] The sample point information includes relevant information of a sample point group, and the sample point group includes a plurality of consecutive sample points in the channel measurement result.
[0465] The time intervals between two consecutive sample points in the sample point group are the same.
[0466] 5. The method according to Supplement 4, wherein the method further comprises:
[0467] The network device reports at least one of the following to the LMF:
[0468] Sampling point quantity information or sampling interval information or sampling length information;
[0469] Power or amplitude information of the corresponding sample point group;
[0470] Phase information of the corresponding sample group.
[0471] 6. The method according to Supplement 4, wherein:
[0472] The sample point information includes time information of the corresponding sample point group, and / or power or amplitude information of the corresponding sample point group, and / or phase information of the corresponding sample point group;
[0473] Wherein, the time information is represented by the time information of the first sample point in the corresponding sample point group;
[0474] The number of sample points in the sample point groups corresponding to different second identifiers is the same;
[0475] The sample point carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
[0476] 7. A positioning method, applied to the LMF side, wherein the method comprises:
[0477] The network side location management element sends configuration information to the network device or terminal device.
[0478] The configuration information includes the configuration of the reporting mode of the channel measurement and / or the configuration of the reporting content of the channel measurement,
[0479] The reporting method of the channel measurement includes at least one of the following: channel impulse response, power delay spectrum, delay spectrum,
[0480] The configuration of the reporting content of the channel measurement at least includes the reporting configuration of time information;
[0481] Among them, the reporting configuration of the measurement result time information includes at least one of the following: information related to the sampling interval; information related to the sampling length or the number of sampling points; information on the reference time of the first sample point; information on the determination method of the first sample point; information on the time offset of the first sample point.
[0482] 8. The method according to Supplementary Note 7, wherein:
[0483] The reporting mode of the channel measurement is configured in an explicit manner; and / or the reporting content of the channel measurement is configured in an implicit manner,
[0484] The configuration of the reporting content of the channel measurement further includes at least one of a reporting configuration of power or amplitude information and a reporting configuration of measurement result phase information;
[0485] The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following: a quantization interval of the power or amplitude; a quantization range of the power or amplitude; a quantization bit of the power or amplitude;
[0486] The reporting configuration of the measurement result phase information includes phase quantization information.
[0487] 9. The method according to Supplementary Note 7, wherein the method further comprises:
[0488] The network-side location management element (LMF) configures the reporting type and / or the reporting format based on the AI / ML model or function of the network-side location management element;
[0489] The configuration of the reporting type and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information;
[0490] The configuration of the time information reporting format includes at least one of the following: reference time, sample time offset information, and sample number information;
[0491] The reporting configuration of the power or amplitude information includes: quantization bit number information;
[0492] The reporting configuration of the phase information includes: quantization bit number information.
[0493] 10. The method according to Supplementary Note 7, wherein the method further comprises:
[0494] The network side location management element (LMF) configures the reporting type and / or reporting format based on the monitoring of the AI / ML model or function of the network side location management element.
[0495] The configuration of the reported content and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information;
[0496] The configuration of the time information reporting format includes at least one of the following: reference time, number of sample points, and sampling interval;
[0497] The reporting configuration of the power or amplitude information includes: quantized bit number information, sampling more bits than the conventional reporting configuration;
[0498] The reporting configuration of the phase information includes at least one of the following: quantized bit number information, sampling more bits than the conventional reporting configuration.
Claims
1. A positioning device, configured in a terminal device, wherein: The device comprises: A first sending unit is configured to send measurement information related to positioning to a location management function (LMF) on the network side, The measurement information related to positioning includes one or more first identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the first identifiers. The sample point information includes relevant information of a sample point group, and the sample point group includes a plurality of consecutive sample points in the channel measurement result. The time intervals between two consecutive sample points in the sample point group are the same.
2. The device according to claim 1, wherein The sample point carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
3. The device according to claim 1, wherein The first identifier is a positioning reference signal identifier (Positioning Reference Signal ID, PRS ID) or a TRP identifier (Transmission Reception Point ID, TRP ID).
4. The device according to claim 1, wherein The sample point information at least includes time information of the corresponding sample point group, The time information is represented by the time information of the first sample point in the corresponding sample point group; The time information of the first sample point is represented by an offset value between the time corresponding to the first sample point and a reference time.
5. The apparatus according to claim 4, wherein the reference time is one of the following: The reference time is the start time of the positioning measurement interval, which can be represented by the system frame number (SFN), slot number, or start time of the start symbol corresponding to the start of measurement; or The time corresponding to the timestamp information in the measurement report; or The reference time is the time corresponding to the earliest sample point in each sample point group; or The reference time is the system frame number (SFN), slot number, or start time of the start symbol corresponding to the first identifier of the earliest first sample in each sample group in the positioning measurement interval; or The reference time is the system frame number, time slot number, and start time of the start symbol corresponding to the first identifier configured by the location management network element in the positioning measurement interval; or The reference time is the system frame number (SFN), time slot number, or start time of the start symbol corresponding to the corresponding first identifier in the positioning measurement interval.
6. The device according to claim 1, wherein The terminal device determines each first sample point in each sample point group respectively; And the first sample point in the sample point group determined by the terminal device is: a sample point corresponding to the first path determined by the terminal device in a process of detecting a positioning reference signal corresponding to the first identifier in the positioning measurement interval; or The sample point corresponding to the time corresponding to the first path is shifted forward by a first time value; wherein the first time value is configured by the LMF or is predefined; or In the positioning measurement interval, the system frame number (SFN) and the time slot number corresponding to the first identifier corresponding to the sample group, and the sample corresponding to the start time of the start symbol; or The system frame number (SFN) and the time slot number (slot number) corresponding to the first identifier corresponding to the sample group, and the sample point corresponding to the time corresponding to the start time of the start symbol (symbol) offset forward by a second time value; wherein the second time value is configured by the LMF or is predefined.
7. The device according to claim 1, wherein The device further comprises: A first receiving unit, configured to receive configuration information sent by a location management network element on the network side; The configuration information includes at least one of the following information: reporting configuration of measurement result time information; reporting configuration of measurement result power or amplitude information; reporting configuration of measurement result phase information; and indication information of reporting type. The reporting configuration of the measurement result time information includes at least one of the following information: information related to the sampling interval; information related to the sampling length or the number of sampling points; information about the reference time of the first sample point; information about the determination method of the first sample point; information about the time offset of the first sample point; The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following information: a quantization interval of the power or amplitude; a quantization range of the power or amplitude; a quantization bit number of the power or amplitude; The reporting configuration of the phase information of the measurement result includes the number of phase quantization bits; The reporting type indication information is used to indicate that the reporting type is at least one of the following: channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
8. The device according to any one of claims 1 to 7, wherein At least one of the sampling length or number of sampling points of the channel measurement corresponding to the first identifier, the quantization bits of the power or amplitude, and the number of phase quantization bits is configured by the network side location management network element, or determined by the terminal device and reported to the network side location management network element.
9. A positioning device, configured in a network device, wherein: The device comprises: The second sending unit is used to send measurement information related to positioning to a location management function (LMF) on the network side, The measurement information related to positioning includes one or more second identifiers (IDs) measured in a positioning measurement interval and sample point information corresponding to the second identifiers. The sample point information includes relevant information of a sample point group, and the sample point group includes a plurality of consecutive sample points in the channel measurement result. The time intervals between two consecutive sample points in the sample point group are the same.
10. The device according to claim 9, wherein The second identifier is a TRP identifier (Transmission Reception Point ID, TRP ID).
11. The device according to claim 9, wherein The sample point information at least includes time information of the corresponding sample point group, The time information is represented by the time information of the first sample point in the corresponding sample point group; The time information of the first sample point is represented by an offset value between the time corresponding to the first sample point and a reference time; The sample point carries a report of one type among channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
12. The device according to claim 11, wherein The reference time is at least one of the following: The start time of the positioning reference signal measurement interval, where the start time can be represented by the system frame number (SFN), time slot number, or start time of the start symbol corresponding to the start of the measurement; The reference time of the uplink relative time difference of arrival (UL RTOA); The reference time corresponding to each sample point group is the system frame number (SFN), time slot number, or start time of the start symbol (symbol) corresponding to the corresponding second identifier in the positioning measurement interval; The time corresponding to the timestamp in the measurement report.
13. The device according to claim 11, wherein The reference time is predefined, or the reference time is configured by the LMF.
14. The device according to claim 9, wherein The network device determines each first sample point in each sample point group respectively; And the first sample point in the sample point group determined by the network device is: a sample point corresponding to the first path determined by the network device in a process of detecting a positioning reference signal corresponding to the second identifier in the positioning measurement interval; or A sample point corresponding to a time after the time corresponding to the first path is shifted forward by a third time value; wherein the third time value is configured by the LMF or is predefined; or In the measurement interval, the system frame number (SFN) and the time slot number corresponding to the second identifier corresponding to the sample group, and the sample corresponding to the start time of the start symbol; or The system frame number (SFN) and the time slot number (slot number) corresponding to the second identifier corresponding to the sample group, and the sample corresponding to the time corresponding to the start time of the start symbol (symbol) that is offset forward by a fourth time value, wherein the fourth time value is configured by the LMF or is predefined.
15. The device according to claim 11, wherein The device further comprises: A second receiving unit, configured to receive configuration information sent by a location management network element on the network side; The configuration information includes at least one of the following information: reporting configuration of measurement result time information; reporting configuration of measurement result power or amplitude information; reporting configuration of measurement result phase information; and indication information of reporting type. The reporting configuration of the measurement result time information includes at least one of the following information: information related to the sampling interval; information related to the sampling length or the number of sampling points; information about the reference time of the first sample point; information about the determination method of the first sample point; information about the time offset of the first sample point; The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following information: power or amplitude Quantization interval of power or amplitude; quantization range of power or amplitude; number of quantization bits of power or amplitude; The reporting configuration of the phase information of the measurement result includes the number of phase quantization bits; The reporting type indication information is used to indicate that the reporting type is at least one of the following: channel impulse response (Channel Impulse Response), power delay profile (Power Delay Profile), and delay profile (Delay Profile).
16. A positioning device, configured in a network-side location management network element, comprising: The third sending unit sends configuration information to the network device or the terminal device, The configuration information includes the reporting type of the channel measurement, the configuration of the reporting mode and / or the configuration of the reporting content of the channel measurement, The configuration of the reporting method includes one of the following: reporting based on the path method, reporting based on the sample point method, The reporting type of the channel measurement includes at least one of the following: channel impulse response, power delay spectrum, delay spectrum, The configuration of the reporting content of the channel measurement at least includes the reporting configuration of time information, The reporting format of the channel measurement is determined by the combination of the above configuration information.
17. The device according to claim 16, wherein The reporting mode of the channel measurement is configured in an explicit manner; and / or the reporting content of the channel measurement is configured in an implicit manner, The configuration of the reporting content of the channel measurement also includes at least one of a reporting configuration of power or amplitude information and a reporting configuration of measurement result phase information.
18. The device according to claim 16, wherein The device further comprises: A first determining unit, which configures a reporting type and / or a reporting format based on an AI / ML model or function of a network-side location management network element, and determines whether reporting is based on a path report or a sample point report based on the performance of the model; The configuration of the reporting type and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information; The configuration of the time information reporting format includes at least one of the following: reference time, sample time offset information, and sample number information; The reporting configuration of the power or amplitude information includes: quantization bit number information; The reporting configuration of the phase information includes: quantization bit number information.
19. The device according to claim 16, wherein The device further comprises: A second determining unit, which selects a configuration of a reporting type and / or a configuration of a reporting format based on monitoring of an AI / ML model or function of a location management network element on the network side, The configuration of the reported content and / or the configuration of the reporting format includes at least one of the following: configuration of the reporting format of time information, configuration of the reporting format of power or amplitude information, and configuration of the reporting format of phase information; The configuration of the time information reporting format includes at least one of the following: reference time, number of sample points, and sampling interval; The reporting configuration of the power or amplitude information includes: quantized bit number information, sampling more bits than the conventional reporting configuration; The reporting configuration of the phase information includes at least one of the following: quantized bit number information, sampling more bits than the conventional reporting configuration.
20. The apparatus according to claim 16, wherein The reporting configuration of the measurement result time information includes at least one of the following: information related to the sampling interval; information related to the sampling length or the number of sampling points; Information about the reference time of the first sample point; information about the method of determining the first sample point; information about the time offset of the first sample point; The reporting configuration of the power or amplitude information of the measurement result includes at least one of the following: a quantization interval of the power or amplitude; a quantization range of the power or amplitude; a quantization bit of the power or amplitude; The reporting configuration of the measurement result phase information includes phase quantization information.
Citation Information
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