Techniques for indicating wireless channel information related to positioning

Abstract

Techniques for indicating wireless channel information related to positioning are described. An example wireless communication method includes receiving, by a first wireless device, a request message from a second device, the request message requesting the first wireless device to report at least a path phase of a channel path; and transmitting a path phase of the channel path to the second device in response to the request message.

Description

Technical Field

[0001] This document relates generally to digital wireless communications. Background Art

[0002] Mobile telecommunication technologies are driving the world towards an increasingly connected and networked society. The next generations of systems and wireless communication technologies will need to support a wider range of use case characteristics and provide a more complex and advanced range of access requirements and flexibility than existing wireless networks.

[0003] Long-Term Evolution (LTE) is a wireless communication standard for mobile devices and data terminals developed by the 3rd Generation Partnership Project (3GPP). LTE Advanced (LTE-A) is a wireless communication standard that enhances the LTE standard. The fifth generation wireless system, called 5G, advances the LTE and LTE-A wireless standards and is committed to supporting higher data rates, a large number of connections, ultra-low latency, high reliability, and other emerging business requirements. Summary of the invention

[0004] Techniques for indicating wireless channel information related to positioning are disclosed.

[0005] The first wireless communication method includes: receiving, by a first wireless device, a request message from a second device, the request message requesting the first wireless device to report at least a path phase of a channel path; and sending the path phase of the channel path to the second device in response to the request message.

[0006] In some embodiments, the request message requests the first wireless device to report the path phase, path timing and path power of the channel path, and the first wireless device sends a data set including the path phase, the path timing and the path power in response to the request message. In some embodiments, the first wireless device includes a communication device. In some embodiments, the path power is a downlink reference signal received path power. In some embodiments, a data set including the path phase, the path timing and the path power is sent to the second device in a downlink measurement report using a downlink time difference of arrival (DL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method. In some embodiments, before the request message is received by the communication device, the communication device sends an indication to the second device indicating that the communication device has the ability to report the path phase, and the request message is received in response to sending the indication.

[0007] In some embodiments, the first wireless device includes a base station (e.g., a TRP or a GNB). In some embodiments, the path power is an uplink reference signal received path power. In some embodiments, a data set including path phase, path timing, and path power is sent to the second device in an uplink measurement report using an uplink time difference of arrival (UL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method.

[0008] The second wireless communication method includes: sending a request message by the second device to the first wireless device, the request message requesting the first wireless device to report at least a path phase of a channel path; and receiving the path phase of the channel path from the first wireless device in response to the request message.

[0009] In some embodiments, the request message requests the first wireless device to report the path phase, path timing and path power of the channel path, and in response to the request message, the second device receives a data set including the path phase, path timing and path power. In some embodiments, the first wireless device includes a communication device, and the second device includes a location entity (e.g., LMF). In some embodiments, the data set including the path phase, path timing and path power is received in a downlink measurement report by the second device using a downlink arrival time difference (DL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method. In some embodiments, before the request message is sent by the second device, the second device receives an indication indicating that the communication device has the ability to report the path phase, and the request message is sent in response to receiving the indication.

[0010] In some embodiments, the first wireless device comprises a base station (e.g., a TRP or a gNB), and the second device comprises a location entity (e.g., a LMF). In some embodiments, a data set including path phase, path timing, and path power is received by the second device in an uplink measurement report using an uplink time difference of arrival (UL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method.

[0011] A third wireless communication method includes: receiving, by a first wireless device, a request message from a second device, the request message requesting the first wireless device to report at least one measurement result based on a multi-port reference signal; and sending a measurement report to the second device in response to the request message, the measurement report including the at least one measurement result and a port index indication, wherein the port index indication corresponds to an antenna port of the multi-port reference signal.

[0012] In some embodiments, the first wireless device comprises a base station (e.g., a TRP or a gNB), wherein the at least one measurement result comprises any one or more of the following: an uplink reference signal received power corresponding to a multi-port reference signal, an uplink reference signal received path power corresponding to the multi-port reference signal, an uplink angle of arrival (UL-AOA) corresponding to the multi-port reference signal, an uplink relative time of arrival (UL-RTOA) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal. In some embodiments, the first wireless device comprises a communication device, wherein the at least one measurement result comprises any one or more of the following: a downlink reference signal received power corresponding to the multi-port reference signal, a downlink reference signal received path power corresponding to the multi-port reference signal, a downlink reference signal time difference (DL-RSTD) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal.

[0013] In some embodiments, the measurement report includes multiple path measurement results corresponding to different port indices of a multi-port reference signal, and the multiple path measurement results are associated with the same path timing. In some embodiments, the multiple path measurement results include any one or more of the following for downlink measurement reports: a downlink reference signal received path power corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal. In some embodiments, the multiple path measurement results include any one or more of the following for uplink measurement reports: an uplink reference signal received path power corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal. In some embodiments, the multiple path measurement results include multiple path phases, one of the multiple path phases is reported in absolute value, and each of the remaining path phases in the multiple path phases is reported in a value relative to the absolute value of the one path phase.

[0014] A fourth wireless communication method includes: a second device sending a request message to a first wireless device, the request message requesting the first wireless device to report at least one measurement result based on a multi-port reference signal; and the second device receiving a measurement report in response to the request message, the measurement report including the at least one measurement result and a port index indication, wherein the port index indication corresponds to an antenna port of the multi-port reference signal.

[0015] In some embodiments, the first wireless device includes a base station (e.g., a TRP or a gNB), and the second device includes a location entity (e.g., a LMF), wherein the at least one measurement result includes any one or more of the following items: an uplink reference signal received power corresponding to a multi-port reference signal, an uplink reference signal received path power corresponding to the multi-port reference signal, an uplink angle of arrival (UL-AOA) corresponding to the multi-port reference signal, an uplink relative time of arrival (UL-RTOA) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal.

[0016] In some embodiments, the first wireless device includes a communication device and the second device includes a location entity (e.g., LMF), wherein the at least one measurement result includes any one or more of the following items: a downlink reference signal received power corresponding to a multi-port reference signal, a downlink reference signal received path power corresponding to the multi-port reference signal, a downlink reference signal time difference (DL-RSTD) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal.

[0017] A fifth wireless communication method includes operating, by a first wireless device, a model, wherein the model determines output data based on input data associated with channel information.

[0018] In some embodiments, the channel information includes a plurality of channel paths, and the first wireless device receives information indicating a total number of the plurality of channel paths. In some embodiments, the first wireless device receives time interval information indicating a time interval between two consecutive channel paths included in the input data. In some embodiments, the first wireless device receives a quantization accuracy indication of an element included in the input data, the element including any one or more of: a first power of the channel path, a second power in phase with the channel path, a third power of an orthogonal portion of the channel path, or a path phase. In some embodiments, the input data includes channel information according to a multi-port reference signal.

[0019] In some embodiments, the input data includes channel information related to the power and phase of the channel path. In some embodiments, the input data includes channel information related to the power of the in-phase portion and the orthogonal portion of the channel path. In some embodiments, the input data includes channel information related to multiple reference signals received from the same transmission reception point (TRP) device. In some embodiments, the output data includes any one or more of the following items: the location of the communication device, at least one confidence level, timing information, or reference signal received power (RSRP) information. In some embodiments, the timing information includes at least one reference signal time difference, and at least one downlink reference signal time difference is the relative timing difference between the adjacent transmission reception point (TRP) and the reference TRP. In some embodiments, the RSRP information includes at least one reference signal reception path power value, wherein at least one reference signal reception path power value is the difference between the reference signal reception path power value corresponding to the target reference signal and another reference signal reception path power value corresponding to another reference signal.

[0020] In another exemplary aspect, the above method is implemented in the form of processor executable code and stored in a non-transitory computer readable storage medium. When the code included in the computer readable storage medium is executed by a processor, it causes the processor to implement the method described in this patent document.

[0021] In yet another exemplary embodiment, a device is disclosed, the device being configured or operable to perform the above method.

[0022] The above and other aspects and embodiments thereof are described in more detail in the drawings, the description and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The architecture of a user equipment (UE) positioning system is shown.

[0024] Figure 2 An example model with model inputs and model outputs is shown.

[0025] Figure 3 An exemplary flow chart for transmitting path phases of channel paths is shown.

[0026] Figure 4 An exemplary flow chart for receiving path phases of channel paths is shown.

[0027] Figure 5An exemplary block diagram of a hardware platform that may be part of a network device or a communication device is shown.

[0028] Figure 6 An example of wireless communication including a base station (BS) and a user equipment (UE) based on some embodiments of the disclosed technology is shown.

[0029] Figure 7 An exemplary flow chart for sending a measurement report is shown.

[0030] Figure 8 An exemplary flow chart for receiving a measurement report is shown.

[0031] Fig. 9 An exemplary flow chart for operating a model is shown. DETAILED DESCRIPTION

[0032] The example titles of the following sections are used to facilitate understanding of the disclosed subject matter and do not limit the scope of the claimed subject matter in any way. Therefore, one or more features of one example section can be combined with one or more features of another example section. Furthermore, for clarity of explanation, 5G terminology is used, but the technology disclosed in this document is not limited to 5G technology, but can also be used in wireless systems implementing other protocols.

[0033] I. Introduction

[0034] Traditional positioning methods are based on timing measurements or angle measurements, which depend largely on the Light of Sight (LoS) conditions of the scene. At the same time, due to the limitations of channel bandwidth and the number of antennas, the estimation accuracy of timing or angle cannot meet the requirements of rapidly developing applications. In this patent document, technical solutions for improving positioning performance are proposed from three aspects: 1) a method for reporting channel phase measurements; 2) a method for reporting multi-port reference signal measurements; 3) a method for using artificial intelligence / machine learning (AI / ML) technology to improve positioning performance.

[0035] The current 5G NR (New Radio) positioning system supports the following solutions for positioning:

[0036] UL (uplink)-based positioning solutions (e.g., Uplink Enhanced Cell ID (UL-ECID) positioning method, Uplink Angle of Arrival (UL-AOA) positioning method, Uplink Time Difference of Arrival (UL-TDOA) positioning method),

[0037] · Downlink (DL)-based positioning solutions (e.g., Downlink Enhanced Cell ID (DL-ECID) positioning method, Downlink Angle of Arrival (DL-

[0038] AoD) positioning method, downlink time difference of arrival (DL-TDOA) positioning method),

[0039] ● DL+UL based positioning solution (eg, multi-cell round trip time (Multi-RTT) positioning method).

[0040] For UL measurements at the Transmit Reception Point (TRP) / gNB side, uplink reference signals are detected to obtain different UL measurements so that the TRP / gNB can determine and report at least one of the following measurements:

[0041] ●UL sounding reference signalreference signal received power (UL SRS-RSRP), which can be reported in the UL measurement report of the UL-AOA, UL-TDOA or Multi-RTT positioning method.

[0042] UL SRS reference signal received path power (UL SRS-RSRPP),

[0043] It can be reported in the UL measurement report of the UL-AOA, UL-TDOA or Multi-RTT positioning method.

[0044] UL-AOA (eg, horizontal (azimuth) angle and vertical (vertical) angle), which can be reported in the UL measurement report of the UL-AOA positioning method.

[0045] UL Relative Time of Arrival (UL-RTOA), which can be reported in the UL measurement report of the UL-RTOA positioning method.

[0046] gNB Rx-Tx (receive-transmit) time difference, which can be reported in the UL measurement report of the Multi-RTT positioning method.

[0047] For DL ​​measurements at the UE side, measurements are made on the downlink reference signal to obtain different DL measurements, so that the UE can determine and report at least one of the following measurements:

[0048] Downlink positioning reference signal reference signal received power (DL PRS-RSRP), which can be found in DL-AOD, DL-

[0049] RSTD) or Multi-RTT positioning method.

[0050] DL PRS reference signal received path power (DL PRS-RSRPP),

[0051] It can be reported in the DL measurement report of the DL-AOD, DL-RSTD or Multi-RTT positioning method.

[0052] DL Reference Signal Time Difference (DL-RSTD), which can be reported in the DL measurement report of the DL-TDOA positioning method.

[0053] UE Rx-Tx time difference, which can only be reported in the DL measurement report of the Multi-RTT positioning method.

[0054] Figure 1 The architecture of a user equipment (UE) positioning system is shown. Figure 1 , an example of the procedure for UL measurement reporting is as follows:

[0055] The UL measurement report is requested by a device including a location management function (LMF) to the TRP / gNB, wherein one of the above UL measurements is requested to be reported in the UL measurement report. The request signaling may also include the configuration of a reference signal (e.g., a sounding reference signal) used in the UL measurement report.

[0056] ●TRP / gNB measures the reference signal and reports the UL measurement report according to the instructions of LMF.

[0057] use Figure 1 , an example of a procedure for DL ​​measurement reporting is as follows:

[0058] The LMF provides assistance data to the UE. The assistance data includes the configuration of reference signals (eg, DLPRS) that are expected to be measured by the UE.

[0059] ●The LMF requests a DL measurement report from the UE, and the LMF indicates which positioning method and which DL measurement to report are required.

[0060] ●UE measures the reference signal and reports the DL measurement report according to the instruction of LMF.

[0061] AI / ML can be used to extract features that cannot be derived by mathematical methods. In this patent document, the proposed technical solution also aims to use AI / ML technology to improve positioning performance. Generally, an AI / ML model is a data-driven algorithm that applies AI / ML technology to generate / determine an output set based on an input set. The data-driven algorithm includes Figure 2 The three parts shown are:

[0062] ●Model input: the data that is fed into the model,

[0063] ●Model output: The output of the model,

[0064] ●Model: An algorithm used to derive / determine the relationship between model inputs and model outputs.

[0065] This patent document will discuss how to define model inputs and model outputs when they are used for position estimation or to improve the estimation accuracy of measurements. In addition, the AI / ML model is an exemplary scenario in which the technical solution described in this patent document can be generalized or applied to any model that determines the relationship between input and output.

[0066] In this patent document, technical solutions that can improve positioning performance are proposed in at least three aspects: 1) a method for reporting measurements of path phase; 2) a method for reporting measurements based on a multi-port reference signal; 3) a method for using AI / ML technology to improve positioning performance.

[0067] II. Measurement

[0068] II. (a) Channel path information

[0069] Currently, UE / TRP can report the reference signal received path power (e.g., DL PRS-RSRPP and UL SRS-RSRPP) of the channel path. However, a given channel path (or a channel impulse response at a given delay) typically includes an in-phase part (or real part) and an orthogonal part (or imaginary part), as shown in the following equation,

[0070]

[0071] in,

[0072] in,

[0073] h(n) is the channel path, which is the channel impulse response at the nth path delay,

[0074] P(n) is the path power of the channel path, which can be the DL PRS-RSRPP measured in the DL or the UL SRS-RSRPP measured in the UL,

[0075] ·θ(n) is the path phase of the channel path,

[0076] ●A I (n) is the amplitude of the in-phase portion of the channel path,

[0077] ●A Q (n) is the amplitude of the quadrature portion of the channel path.

[0078] In some embodiments, the UE may report whether the UE has the capability to report the path phase. For example, the UE may send a message to the LMF indicating whether the UE has the capability to report the path phase; the LMF may send a request to the UE to send the path phase; and the UE sends the path phase to the LMF in response to receiving the request.

[0079] In some embodiments, the LMF may request the UE or TRP to report the path phase.

[0080] • In some embodiments, the UE or TRP shall only report path phase when path power (eg, DL PRS-RSRPP or UL SRS-RSRPP) is also requested and reported.

[0081] ● In some embodiments, the UE or TRP may be requested to report a triplet set of {path timing, path power, path phase} of the channel path. The UE / TRP report then includes at least one data set of path timing, path power and path phase of the channel path.

[0082] ○ Path power is DL PRS-RSRPP measured in DL or UL SRS-RSRPP measured in UL

[0083] o The triplet set may be reported to the LMF via DL measurement reporting using the DL TDOA positioning method and / or the Multi-RTT positioning method.

[0084] ○ The UL TDOA positioning method and / or the Multi-RTT positioning method may be used to report the triplet set to the LMF through UL measurement reporting.

[0085] ● In some embodiments, the LMF may indicate the reporting granularity (or resolution) of the path phase measurement to the UE or TRP. For example, the reporting granularity may be one of the values ​​{1°, 2°, 5°, 10°}.

[0086] ● In some embodiments, the UE or TRP may report which reporting granularity (or resolution) has been used for path phase measurement. For example, the reporting granularity may be one of the values ​​{1°, 2°, 5°, 10°}.

[0087] III. Multi-port Reference Signal

[0088] Generally, the more information fed into the AI ​​model, the higher the expected inference accuracy. However, current positioning reference signals (uplink positioning reference signals or downlink positioning reference signals) only support single-port transmission. This section discusses solutions for supporting multi-port reference signals below.

[0089] ● In some embodiments, the UE may report whether the UE has the capability to support multi-port PRS. For example, the UE may send a message to the LMF indicating whether the UE has the capability to support multi-port PRS; the LMF may send a request to the UE to send a report related to multi-port PRS related measurements; and the UE, in response to receiving the request, sends a report including measurements based on multi-port PRS to the LMF.

[0090] ● In some embodiments, the LMF may request the UE or TRP to report measurements based on multi-port PRS. For example, the TRP or base station may send a single PRS to the UE using multiple antenna ports. In another example, the UE may send a single PRS to the TRP or base station using multiple antenna ports. Each of the multiple antenna ports may be uniquely identified by a port index.

[0091] o In the measurement report, the measurement result may be associated with a port index, which is used to indicate from which port of the positioning reference signal the measurement result is derived / measured.

[0092] ■For measurement reports from TRP to LMF, the measurement results can be any one or more of the following:

[0093] UL SRS-RSRP,

[0094] UL SRS-RSRPP,

[0095] UL-AOA,

[0096] UL-RTOA,

[0097] gNB Rx-Tx time difference,

[0098] ●Path phase.

[0099] ■For measurement reports from UE to LMF, the measurement results can be any one or more of the following:

[0100] DL PRS-RSRP,

[0101] DL PRS-RSRPP,

[0102] DL-RSTD,

[0103] UE Rx-Tx time difference,

[0104] ●Path phase.

[0105] o In a measurement report, multiple path measurements corresponding to different port indices of the same positioning reference signal may be associated with the same path timing.

[0106] ■ In some embodiments, the path measurement may be any one or more of the following DL measurements:

[0107] DL PRS-RSRPP,

[0108] ●Path phase.

[0109] ■ In some embodiments, the path measurement may be any one or more of the following UL measurements:

[0110] UL SRS-RSRPP,

[0111] ●Path phase.

[0112] ■ In some embodiments, if multiple path measurements are path phase measurements, one path phase may be reported relative to a reference path phase. That is, the reference path phase reports an absolute value, and the remaining path phases are reported by differences from that absolute value.

[0113] • In some embodiments, the UE may report which port index of the positioning reference signal for which the path phase measurement is reported in absolute value.

[0114] • In some embodiments, the path phase measurement associated with the lowest port index of the positioning reference signal is reported as an absolute value by default.

[0115] • In some embodiments, the reporting overhead (or maximum value) of the absolute value is greater than the difference value.

[0116] ■ In some embodiments, if the multiple path measurements are path powers (e.g., DL PRS-RSRPP or UL SRS-

[0117] If a reference path power (RSRPP) is used for measurement, a path power may be reported relative to a reference path power. That is, the reference path power is reported in absolute value, and the remaining path power is reported as a difference from the absolute value.

[0118] • In some embodiments, the UE may report which port index of the positioning reference signal for which the path power measurement is reported in absolute value.

[0119] • In some embodiments, the path power measurement associated with the lowest port index of the positioning reference signal is reported as an absolute value by default.

[0120] • In some embodiments, the absolute value of the reporting overhead (or maximum value) is greater than the difference value.

[0121] ● In some embodiments, the LMF may request the TRP to configure a multi-port PRS (the PRS may be a DLPRS or SRS for positioning). In addition, the request message may also include any one or more of the following information:

[0122] ○The number of ports used for PRS;

[0123] o Time domain information (e.g., time domain allocation in time slots);

[0124] o Frequency domain information (e.g., frequency domain allocation in resource blocks);

[0125] ○ Code Division Multiplexing (CDM) type, which may include at least one of the following types:

[0126] ■No CDM,

[0127] ■Frequency Domain CDM (FD-CDM),

[0128] ■Time Domain CDM (TD-CDM),

[0129] ■FD-CDM and TD-CDM;

[0130] ○Number of CDM groups.

[0131] IV. AI Input Data and AI Output Data

[0132] In this section, some solutions are described to describe or define AI model inputs and AI model outputs for positioning. In general, the AI ​​model can be used to directly derive the UE position or to improve the estimation accuracy of positioning-related measurements. The AI ​​model can be located in the UE, gNB / TRP and / or LMF and operate in the UE, gNB / TRP and / or LMF.

[0133] ● In some embodiments, data used for AI model input is associated with channel information:

[0134] o In some embodiments, the UE / TRP is informed / indicated / configured with the number of channel paths included in the data (or the number of channel impulse responses corresponding to different time delays).

[0135] ■ In some embodiments, the time interval (or time granularity) between two adjacent (or consecutive) channel paths included in the data should also be notified to the UE / TRP. In addition, for any two adjacent

[0136] (or continuous) channel paths, the time interval should be the same.

[0137] o In some embodiments, the UE / TRP is informed / indicated / configured with the quantization accuracy (e.g., the number of bits used to quantize the coefficient) of a coefficient (or element / weight) included in the data, where the coefficient may be one of:

[0138] ■The power / amplitude of the channel path,

[0139] ■The power / amplitude of the in-phase of the channel path,

[0140] ■The power / amplitude of the orthogonal part of the channel path,

[0141] ■Path phase.

[0142] ○ In some embodiments, the data includes measurements based on a multi-port PRS

[0143] ■ In some embodiments, the UE / TRP is informed / instructed / configured with an order / sequence of measurement results to be included / placed in the data, wherein the measurements correspond to different port indices of the positioning reference signal.

[0144] • For example, a measurement corresponding to a lower port index of a positioning reference signal has a higher priority than another measurement corresponding to a higher port index of the same positioning reference signal.

[0145] v In some embodiments, the data includes measurements of at least one path power and at least one path phase of a channel path.

[0146] ■ In some embodiments, the UE / TRP is informed / instructed / configured with the order / sequence of path powers and path phases of the channel paths to be included / placed in the data.

[0147] o In some embodiments, the data includes at least one power / amplitude measurement of an in-phase portion and a quadrature portion of a channel path.

[0148] ■ In some embodiments, the UE / TRP is informed / instructed / configured with the order / sequence of the power / amplitude of the in-phase and quadrature parts of the channel path to be included / placed in the data.

[0149] - For example, a measurement corresponding to the power / amplitude of the in-phase portion of a channel path has a higher priority than another measurement corresponding to the power / amplitude of the quadrature portion of the same channel path.

[0150] ○ In some embodiments, the data includes measurements based on multiple positioning reference signals sent from the same TRP.

[0151] ■ In some embodiments, measurements of positioning reference signals according to some selections may be included in the data.

[0152] The selected positioning reference signal should be indicated to the device performing the operation of the AI ​​model.

[0153] • In some embodiments, the selected positioning reference signal should be from the same resource set of positioning reference signals (eg, the same DL PRS resource set or SRS resource set).

[0154] • In some embodiments, the selected positioning reference signals should be from the same component carrier.

[0155] ■ In some embodiments, the UE is informed / instructed / configured with the order / sequence of measurements from multiple positioning reference signals to be included / placed in the data.

[0156] • For example, the order is based on the positioning reference signal identifier.

[0157] • For example, the order is based on the resource set identifier of the positioning reference signal.

[0158] • For example, the order is based on the component carrier identifier of the positioning reference signal.

[0159] ○ In some embodiments, the data includes measurements based on multiple positioning reference signals sent from different TRPs.

[0160] ■ In some embodiments, measurements according to some selected TRP may be included in the data. The selected TRP should be indicated to the device executing the operation of the AI ​​model.

[0161] ■ In some embodiments, the UE is informed / instructed / configured with the order / sequence of measurements according to different TRPs to be included / placed in the data.

[0162] ●For example, the order is based on the TRP identifier.

[0163] • In some embodiments, only measurements of some selected positioning reference signals in each of the selected TRPs may be included in the data.

[0164] o In some embodiments, the data includes the following measurement results: the positioning reference signals corresponding to the measurement results are received by the UE based on the same receive beam hypothesis, wherein the same receive beam hypothesis can be one of the following:

[0165] ■Same receive beam index,

[0166] ■Same spatial reception parameters (or same reception spatial filter).

[0167] o In some embodiments, the data includes the following measurement results: the positioning reference signals corresponding to these measurement results are received by the UE based on the same reception timing error assumption.

[0168] ■ For example, the received timing errors (or received timing error differences) experienced by different positioning reference signals should be within the same range.

[0169] ●In some embodiments, the AI ​​model output may be one of the following:

[0170] ○UE position, which can be a two-dimensional UE position or a three-dimensional UE position

[0171] ○At least one confidence level value

[0172] ■ The confidence level value is the confidence level that the channel is a LoS (line of sight) channel or an NLoS (non-line of sight) channel. For example, the measurement results included in the data used for the AI ​​model input are associated with the channel experienced by the positioning reference signal. The AI ​​model output is used to determine whether the channel is a LoS (line of sight) channel or an NLoS

[0173] Confidence level of the (non-line-of-sight) channel.

[0174] • In some embodiments, the number of confidence level values ​​in the AI ​​model output should be indicated to the device performing the operations of the AI ​​model.

[0175] ●In some embodiments, the number of confidence level values ​​in the AI ​​model output is determined based on the number of reference signals included in the data used for the AI ​​model input.

[0176] • In some embodiments, the number of confidence level values ​​in the AI ​​model output is determined based on the number of TRPs included in the data used for the AI ​​model input.

[0177] ■The confidence level value may be a confidence level in the effectiveness of the AI ​​model. For example, if the value is equal to / approximately 0, it indicates that the AI ​​model is no longer effective. And, if the value is equal to / approximately 1, it indicates that the AI ​​model is working well.

[0178] ○ Timing information

[0179] ■ The timing information may include at least one reference signal time difference value (e.g., a DL-RSTD value or a UL-RTOA value),

[0180] The reference signal time difference is the relative timing difference between the adjacent TRP and the reference TRP.

[0181] • In some embodiments, the UE should be informed which TRP is the reference TRP.

[0182] ●In some embodiments, the UE may report which TRP is the reference TRP.

[0183] • In some embodiments, the reference signal time difference value may be temporally related only to the first detected channel path.

[0184] • In some embodiments, the number of reference signal time difference values ​​in the AI ​​model output should be indicated to the device performing the operation of the AI ​​model.

[0185] • In some embodiments, the number of reference signal time difference values ​​in the AI ​​model output is determined based on the number of reference signals included in the data used for the AI ​​model input.

[0186] In some embodiments, the number of reference signal time difference values ​​in the AI ​​model output is determined based on the number of TRPs included in the data used for the AI ​​model input.

[0187] ○RSRP information

[0188] ■ RSRP information may include at least one reference signal received power value (eg, DL-PRS-RSRP value or UL-

[0189] SRS-RSRP value), the reference signal received power value may be a difference between an RSRP corresponding to a target PRS and another RSRP corresponding to a reference PRS.

[0190] • In some embodiments, the UE should be informed which PRS is the reference PRS.

[0191] • In some embodiments, the UE may report which PRS is the reference PRS.

[0192] In some embodiments, if the AI ​​model output includes multiple RSRP values, the multiple RSRP values ​​should be associated with the same TRP. In addition, the multiple RSRP values ​​are also associated with the same reference PRS.

[0193] • In some embodiments, the number of reference signal received power values ​​in the AI ​​model output should be indicated to the device performing the operations of the AI ​​model.

[0194] • In some embodiments, the number of reference signal received power values ​​in the AI ​​model output is determined based on the number of reference signals included in the data used for the AI ​​model input.

[0195] • In some embodiments, the number of reference signal received power values ​​in the AI ​​model output is determined based on the number of TRPs included in the data used for the AI ​​model input.

[0196] ■RSRP information may include at least one reference signal reception path power value (e.g., a DL-PRS-RSRPP value or a UL-SRS-RSRPP value), which reference signal reception path power value may be a difference between one RSRPP corresponding to a target PRS and another RSRPP corresponding to a reference PRS.

[0197] • In some embodiments, the UE should be informed which PRS is the reference PRS.

[0198] • In some embodiments, the UE may report which PRS is the reference PRS.

[0199] • In some embodiments, if the AI ​​model output includes multiple RSRPP values, the multiple RSRPP values ​​should be associated with the same TRP. In addition, the multiple RSRPP values ​​are also associated with the same reference PRS.

[0200] • In some embodiments, the RSRPP value is the RSRPP for the first path delay only, so the RSRPP is the power contribution corresponding to the channel path that is detected first in time.

[0201] • In some embodiments, the number of reference signal receive path power values ​​in the AI ​​model output should be indicated to the device executing the operation of the AI ​​model.

[0202] • In some embodiments, the number of reference signal reception path power values ​​in the AI ​​model output is determined based on the number of reference signals included in the data used for the AI ​​model input.

[0203] In some embodiments, the AI ​​model is determined based on the number of TRPs included in the data used for the AI ​​model input.

[0204] The number of reference signal receive path power values ​​in the model output.

[0205] ●In some embodiments, the UE will implement / execute / infer / operate the AI ​​model.

[0206] In some embodiments, the TRP / gNB will implement / execute / infer / operate the AI ​​model.

[0207] • In some embodiments, the AI ​​model output should be reported to the LMF in the measurement report.

[0208] ○ In the measurement report, at least one field should indicate that the measurement result is from the AI ​​model output.

[0209] ○ In some embodiments, a device may operate the same AI model multiple times based on different data for AI model outputs, with each AI model operation corresponding to an AI model output set. Each AI model output set included in a measurement report may be uniquely identified by an identifier.

[0210] ○ In some embodiments, the value in the AI ​​model output should be associated with one of the following information:

[0211] ■TRP identifier,

[0212] ■ Reference signal resource set identifier,

[0213] ■ Reference signal resource identifier.

[0214] v In some embodiments, all values ​​in the AI ​​model output should be reported.

[0215] This patent document describes, among other things, techniques for reporting path phase by UE and TRP, techniques for reporting measurements based on multi-port PRS by UE and TRP, and techniques for defining AI model input and AI model output.

[0216] Figure 3An exemplary flow chart for transmitting a path phase of a channel path is shown. Operation 302 includes: receiving, by a first wireless device, a request message from a second device, the request message requesting the first wireless device to report at least the path phase of the channel path. Operation 304 includes: transmitting the path phase of the channel path to the second device in response to the request message.

[0217] In some embodiments, the request message requests the first wireless device to report the path phase, path timing and path power of the channel path, and the first wireless device sends a data set including the path phase, path timing and path power in response to the request message. In some embodiments, the first wireless device includes a communication device. In some embodiments, the path power is a downlink reference signal received path power. In some embodiments, a data set including the path phase, path timing and path power is sent to the second device in a downlink measurement report using a downlink arrival time difference (DL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method. In some embodiments, before the request message is received by the communication device, the communication device sends an indication to the second device indicating that the communication device has the ability to report the path phase, and the request message is received in response to sending the indication.

[0218] In some embodiments, the first wireless device comprises a base station (e.g., a TRP or a gNB). In some embodiments, the path power is an uplink reference signal received path power. In some embodiments, a data set including path phase, path timing, and path power is sent to the second device in an uplink measurement report using an uplink time difference of arrival (ULTDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method.

[0219] Figure 4 An exemplary flow chart for receiving a path phase of a channel path is shown. Operation 402 includes: sending a request message by a second device to a first wireless device, the request message requesting the first wireless device to report at least the path phase of the channel path. Operation 404 includes: receiving the path phase of the channel path from the first wireless device in response to the request message.

[0220] In some embodiments, the request message requests the first wireless device to report the path phase, path timing and path power of the channel path, and in response to the request message, the second device receives a data set including the path phase, path timing and path power. In some embodiments, the first wireless device includes a communication device, and the second device includes a location entity (e.g., LMF). In some embodiments, the data set including the path phase, path timing and path power is received in a downlink measurement report by the second device using a downlink arrival time difference (DL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method. In some embodiments, before the request message is sent by the second device, the second device receives an indication indicating that the communication device has the ability to report the path phase, and the request message is sent in response to receiving the indication.

[0221] In some embodiments, the first wireless device comprises a base station (e.g., a TRP or a gNB), and the second device comprises a location entity (e.g., a LMF). In some embodiments, a data set including path phase, path timing, and path power is received by the second device in an uplink measurement report using an uplink time difference of arrival (UL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method.

[0222] Figure 7 An exemplary flow chart for sending a measurement report is shown. Operation 702 includes: receiving, by a first wireless device, a request message from a second device, the request message requesting the first wireless device to report at least one measurement result based on a multi-port reference signal. Operation 704 includes: sending a measurement report to the second device in response to the request message, the measurement report including the at least one measurement result and a port index indication, wherein the port index indication corresponds to an antenna port of the multi-port reference signal.

[0223] In some embodiments, the first wireless device comprises a base station (e.g., a TRP or a gNB), wherein the at least one measurement result comprises any one or more of the following: an uplink reference signal received power corresponding to a multi-port reference signal, an uplink reference signal received path power corresponding to the multi-port reference signal, an uplink angle of arrival (UL-AOA) corresponding to the multi-port reference signal, an uplink relative time of arrival (UL-RTOA) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal. In some embodiments, the first wireless device comprises a communications device, wherein the at least one measurement result comprises any one or more of the following: a downlink reference signal received power corresponding to the multi-port reference signal, a downlink reference signal received path power corresponding to the multi-port reference signal, a downlink reference signal time difference (DL-RSTD) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal.

[0224] In some embodiments, the measurement report includes multiple path measurement results corresponding to different port indices of a multi-port reference signal, and the multiple path measurement results are associated with the same path timing. In some embodiments, the multiple path measurement results include any one or more of the following for downlink measurement reports: a downlink reference signal received path power corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal. In some embodiments, the multiple path measurement results include any one or more of the following for uplink measurement reports: an uplink reference signal received path power corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal. In some embodiments, the multiple path measurement results include multiple path phases, one of the multiple path phases is reported in absolute value, and each of the remaining path phases in the multiple path phases is reported in a value relative to the absolute value of the one path phase.

[0225] Figure 8 An exemplary flow chart for receiving a measurement report is shown. Operation 802 includes: sending a request message by a second device to a first wireless device, the request message requesting the first wireless device to report at least one measurement result based on a multi-port reference signal. Operation 804 includes: receiving a measurement report in response to the request message by the second device, the measurement report including the at least one measurement result and a port index indication, wherein the port index indication corresponds to an antenna port of the multi-port reference signal.

[0226] In some embodiments, the first wireless device includes a base station (e.g., a TRP or a gNB), and the second device includes a location entity (e.g., a LMF), wherein the at least one measurement result includes any one or more of the following items: an uplink reference signal received power corresponding to a multi-port reference signal, an uplink reference signal received path power corresponding to the multi-port reference signal, an uplink angle of arrival (UL-AOA) corresponding to the multi-port reference signal, an uplink relative time of arrival (UL-RTOA) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal.

[0227] In some embodiments, the first wireless device includes a communication device and the second device includes a location entity (e.g., LMF), wherein the at least one measurement result includes any one or more of the following items: a downlink reference signal received power corresponding to a multi-port reference signal, a downlink reference signal received path power corresponding to the multi-port reference signal, a downlink reference signal time difference (DL-RSTD) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and a path phase corresponding to the multi-port reference signal.

[0228] Fig. 9 An exemplary flow diagram for operating a model is shown. Operation 902 comprises operating, by a first wireless device, a model (eg, an AI model), wherein the model determines output data based on input data associated with channel information.

[0229] In some embodiments, the channel information includes a plurality of channel paths, and the first wireless device receives information indicating a total number of the plurality of channel paths. In some embodiments, the first wireless device receives time interval information indicating a time interval between two consecutive channel paths included in the input data. In some embodiments, the first wireless device receives a quantization accuracy indication of an element included in the input data, the element including any one or more of: a first power of the channel path, a second power in phase with the channel path, a third power of an orthogonal portion of the channel path, or a path phase. In some embodiments, the input data includes channel information according to a multi-port reference signal.

[0230] In some embodiments, the input data includes channel information related to the power and phase of the channel path. In some embodiments, the input data includes channel information related to the power of the in-phase portion and the orthogonal portion of the channel path. In some embodiments, the input data includes channel information related to multiple reference signals received from the same transmit receive point (TRP) device. In some embodiments, the output data includes any one or more of the following items: the location of the communication device, at least one confidence level, timing information, or reference signal received power (RSRP) information. In some embodiments, the timing information includes at least one reference signal time difference, and at least one downlink reference signal time difference is the relative timing difference between an adjacent transmit receive point (TRP) and a reference TRP. In some embodiments, the RSRP information includes at least one reference signal received path power value, wherein at least one reference signal received path power value is the difference between a reference signal received path power value corresponding to a target reference signal and another reference signal received path power value corresponding to another reference signal.

[0231] Figure 5 An exemplary block diagram of a hardware platform 500 that may be part of a network device (e.g., a base station) or a communication device (e.g., a user equipment (UE)) is shown. The hardware platform 500 includes at least one processor 510 and a memory 505 having instructions stored thereon. When the instructions are executed by the processor 510, the hardware platform 500 is configured to execute Figures 1 to 4 and Figures 6 to 9 As well as the operations described in the various embodiments described in this patent document. Transmitter 515 transmits or sends information or data to another device. For example, a network device transmitter can send a message to a user device. Receiver 520 receives information or data transmitted or sent by another device. For example, a user device can receive a message from a network device.

[0232] The embodiments discussed above may be applied to wireless communications. Figure 6An example of a wireless communication system (e.g., a 5G or NR cellular network) is shown, which includes a base station 620 and one or more user equipment (UE) 611, 612, and 613. In some embodiments, the UE uses a communication link to the network (sometimes referred to as an uplink direction, which is depicted by dashed arrows 631, 632, 633) to access the BS (e.g., the network), and then subsequent communication from the BS to the UE is achieved (e.g., shown as in the direction from the network to the UE, which is sometimes referred to as a downlink direction, which is shown by arrows 641, 642, 643). In some embodiments, the BS sends information to the UE (sometimes referred to as a downlink direction, depicted by arrows 641, 642, 643), and then subsequent communication from the UE to the BS is achieved (e.g., shown as in the direction from the UE to the BS, which is sometimes referred to as an uplink direction, which is shown by dashed arrows 631, 632, 633). The UE may be, for example, a smart phone, a tablet computer, a mobile computer, a machine to machine (M2M) device, an Internet of Things (IoT) device, etc.

[0233] In this document, the term "exemplary" is used to mean "an example of," and is not intended to refer to an ideal or preferred embodiment unless otherwise specified.

[0234] Some of the multiple embodiments described herein are described in the general context of methods or processes, which can be implemented in one embodiment by a computer program product, implemented in a computer-readable medium, which includes computer-executable instructions, such as program codes, executed by a computer in a network environment. Computer-readable media may include removable storage devices and non-removable storage devices, including but not limited to read-only memory (ROM), random access memory (RAM), compact disc (CD), digital versatile disc (DVD), etc. Therefore, computer-readable media may include non-transitory storage media. Generally, program modules may include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. Computer executable instructions or processor executable instructions, associated data structures, and program modules represent examples of program codes for executing the steps of the methods disclosed herein. A specific sequence of such executable instructions or associated data structures represents an example of corresponding actions for implementing the functions described in such steps or processes.

[0235] Some embodiments in the disclosed embodiments may be implemented as devices or modules using hardware circuits, software, or a combination thereof. For example, a hardware circuit implementation may include discrete analog components and / or digital components, for example, integrated as a part of a printed circuit board. Alternatively, or additionally, the disclosed components or modules may be implemented as application specific integrated circuits (Application Specific Integrated Circuit, ASIC) and / or field programmable gate arrays (Field Programmable Gate Array, FPGA) devices. Some embodiments may additionally or alternatively include a digital signal processor (Digital Signal Processor, DSP), which is a dedicated microprocessor with such an architecture: an architecture optimized for the operational requirements of digital signal processing associated with the disclosed functions of the present application. Similarly, various components or subcomponents within each module may be implemented in software, hardware, or firmware. Any of the connection methods and media known in the art (including but not limited to communication via the Internet, wired or wireless networks using suitable protocols) may be used to provide connections between modules and / or components within the modules.

[0236] Although this document contains many details, these details should not be interpreted as limitations on the scope of the claimed invention or the scope of the content that may be claimed, but should be interpreted as descriptions of features specific to a specific embodiment. Certain features described in the context of a separate embodiment in this document may also be implemented in combination in a single embodiment. Conversely, the various features described in the context of a single embodiment may also be implemented individually in multiple embodiments or in any suitable sub-combination. In addition, although features may be described above as working in certain combinations, and even initially claimed as such, in some cases, one or more features from the combination may be deleted from the claimed combination, and the claimed combination may involve a sub-combination or a variation of a sub-combination. Similarly, although each operation is depicted in a particular order in the accompanying drawings, this should not be understood as requiring such operations to be performed in the particular order shown or in order, or performing all the operations shown, to achieve the desired result.

[0237] Only a few implementations and examples are described, and other implementations, enhancements, and variations may be made based on what is described and illustrated in this disclosure.

Claims

1. A wireless communication method, comprising: Receiving, by a first wireless device, a request message from a second device, the request message requesting the first wireless device to report at least a path phase of a channel path; as well as In response to the request message, the path phase of the channel path is sent to the second device.

2. The method according to claim 1, in, The request message requests the first wireless device to report the path phase, path timing, and path power of the channel path, and The first wireless device sends a data set including the path phase, the path timing and the path power in response to the request message.

3. The method according to claim 2, wherein: The first wireless device comprises a communication device.

4. The method according to claim 3, wherein: The path power is a downlink reference signal reception path power.

5. The method according to claim 3, wherein: The data set including the path phase, the path timing and the path power is sent to the second device in a downlink measurement report using a downlink time difference of arrival (DL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method.

6. The method according to claim 3, in, Prior to receiving the request message by the communication device, the communication device sends an indication to the second device indicating that the communication device has the capability to report the path phase, and The request message is received in response to sending the indication.

7. The method according to claim 2, wherein: The first wireless device comprises a base station.

8. The method according to claim 7, wherein: The path power is the uplink reference signal reception path power.

9. The method according to claim 7, wherein: The data set including the path phase, the path timing and the path power is sent to the second device in an uplink measurement report using an uplink time difference of arrival (UL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method.

10. A wireless communication method, comprising: The second device sends a request message to the first wireless device, wherein the request message requests the first wireless device to report at least a path phase of a channel path; as well as A path phase of the channel path is received from the first wireless device in response to the request message.

11. The method according to claim 10, in, The request message requests the first wireless device to report the path phase, path timing, and path power of the channel path, and The second device receives a data set in response to the request message, wherein the data set includes the path phase, the path timing, and the path power.

12. The method according to claim 11, wherein: The first wireless device comprises a communication device, and wherein the second device comprises a location entity.

13. The method according to claim 12, wherein: The data set including the path phase, the path timing and the path power is received by the second device in a downlink measurement report using a downlink time difference of arrival (DL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method.

14. The method according to claim 12, in, Prior to sending the request message by the second device, the second device receives an indication that the communication device has the capability to report the path phase, and The request message is sent in response to receiving the indication.

15. The method according to claim 11, wherein: The first wireless device comprises a base station, and wherein the second device comprises a location entity.

16. The method according to claim 15, wherein: The data set including the path phase, the path timing and the path power is received by the second device in an uplink measurement report using an uplink time difference of arrival (UL TDOA) positioning method and / or a multi-cell round trip time (Multi-RTT) positioning method.

17. A wireless communication method, comprising: Receiving, by a first wireless device, a request message from a second device, the request message requesting the first wireless device to report at least one measurement result based on a multi-port reference signal; as well as sending, in response to the request message, a measurement report to the second device, the measurement report including the at least one measurement result and a port index indication, The port index indication corresponds to the antenna port of the multi-port reference signal.

18. The method according to claim 17, in, The first wireless device comprises a base station, The at least one measurement result includes any one or more of the following: an uplink reference signal received power corresponding to the multi-port reference signal, an uplink reference signal received path power corresponding to the multi-port reference signal, an uplink angle of arrival (UL-AOA) corresponding to the multi-port reference signal, an uplink relative time of arrival (UL-RTOA) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and A path phase corresponding to the multi-port reference signal.

19. The method according to claim 17, in, The first wireless device comprises a communication device, The at least one measurement result includes any one or more of the following: a downlink reference signal received power corresponding to the multi-port reference signal, a downlink reference signal received path power corresponding to the multi-port reference signal, a downlink reference signal time difference (DL-RSTD) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and A path phase corresponding to the multi-port reference signal.

20. The method according to claim 17, in, The measurement report includes a plurality of path measurement results corresponding to different port indexes of the multi-port reference signal, and The multiple path measurement results are associated with the same path timing.

21. The method according to claim 20, wherein: The plurality of path measurement results include any one or more of the following for downlink measurement reporting: a downlink reference signal received path power corresponding to the multi-port reference signal, and A path phase corresponding to the multi-port reference signal.

22. The method according to claim 20, wherein: The multiple path measurement results include any one or more of the following for uplink measurement reporting: an uplink reference signal received path power corresponding to the multi-port reference signal, and A path phase corresponding to the multi-port reference signal.

23. The method according to claim 20, in, The plurality of path measurement results include a plurality of path phases, wherein a path phase of the plurality of path phases is reported as an absolute value, and Each of the remaining path phases of the plurality of path phases is reported as a value relative to the absolute value of the one path phase.

24. A wireless communication method, comprising: The second device sends a request message to the first wireless device, wherein the request message requests the first wireless device to report at least one measurement result based on the multi-port reference signal; as well as receiving, by the second device, a measurement report in response to the request message, the measurement report including the at least one measurement result and a port index indication, The port index indication corresponds to the antenna port of the multi-port reference signal.

25. The method according to claim 24, in, The first wireless device comprises a base station, Wherein, the second device comprises a location entity, The at least one measurement result includes any one or more of the following: an uplink reference signal received power corresponding to the multi-port reference signal, an uplink reference signal received path power corresponding to the multi-port reference signal, an uplink angle of arrival (UL-AOA) corresponding to the multi-port reference signal, an uplink relative time of arrival (UL-RTOA) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and A path phase corresponding to the multi-port reference signal.

26. The method according to claim 24, in, The first wireless device comprises a communication device, Wherein, the second device comprises a location entity, The at least one measurement result includes any one or more of the following: a downlink reference signal received power corresponding to the multi-port reference signal, a downlink reference signal received path power corresponding to the multi-port reference signal, a downlink reference signal time difference (DL-RSTD) corresponding to the multi-port reference signal, an Rx-Tx time difference corresponding to the multi-port reference signal, and A path phase corresponding to the multi-port reference signal.

27. A wireless communication method, comprising: A model is operated by the first wireless device, wherein the model determines output data based on input data associated with channel information.

28. The method according to claim 27, in, The channel information includes a plurality of channel paths, The first wireless device receives information indicating a total number of the plurality of channel paths.

29. The method according to claim 28, wherein: The first wireless device receives time interval information indicating a time interval between two consecutive channel paths included in the input data.

30. The method according to claim 27, in, The first wireless device receives an indication of quantization accuracy of an element included in the input data, and The elements include any one or more of the following: The first power of the channel path, a second power in phase with the channel path, a third power of the orthogonal portion of the channel path, or Path phase.

31. The method of claim 27, wherein: The input data includes channel information according to a multi-port reference signal.

32. The method of claim 27, wherein: The input data includes channel information related to the power and phase of the channel path.

33. The method of claim 27, wherein: The input data includes channel information related to the power of the in-phase portion and the quadrature portion of the channel path.

34. The method of claim 27, wherein: The input data includes channel information associated with a plurality of reference signals received from a same Transmit Reception Point (TRP) device.

35. The method of claim 27, wherein: The output data includes any one or more of the following: the location of the communication equipment, At least one confidence level, Timing information, or Reference Signal Received Power (RSRP) information.

36. The method according to claim 35, in, The timing information includes at least one reference signal time difference value, and Wherein, the at least one downlink reference signal time difference value is a relative timing difference between an adjacent transmit receive point (TRP) and a reference TRP.

37. The method of claim 35, wherein: The RSRP information includes at least one reference signal received path power value, wherein the at least one reference signal received path power value is a difference between a reference signal received path power value corresponding to a target reference signal and another reference signal received path power value corresponding to another reference signal.

38. An apparatus for wireless communication, the apparatus comprising a processor configured to implement the method according to one or more of claims 1 to 37.

39. A non-transitory computer-readable program storage medium having stored thereon codes which, when executed by a processor, cause the processor to implement the method according to one or more of claims 1 to 37.

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