Reporting channel impulse responses for multiple beams for spatial analysis by machine learning

Abstract

The present disclosure provides methods and systems for reporting channel impulse responses for multiple beams for spatial analysis by machine learning. For example, a user equipment (UE) sends an indication of the ability to report a channel impulse response (CIR) report to a network entity. The UE receives a configuration message including parameters of the CIR quantization scheme. The configuration message is sent by the network entity based on the indication and is used to configure the CIR report. The UE performs measurements based on parameters of the CIR quantization scheme to derive quantized CIR values. The UE sends a CIR report including the quantized CIR value to a network entity. The CIR report is generated based on the measurements.

Description

Technical Field

[0001] The present disclosure generally relates to channel impulse response (CIR) feedback. Background Art

[0002] The 3rd Generation Partnership Project (3GPP) is currently in the process of specifying a new radio interface called 5G New Radio (5G NR) and the Next Generation Packet Core Network (NG-CN or NGC). The 5G NR architecture will have three components: 5G Radio Access Network (5G-RAN), 5G Core Network (5GC), and User Equipment (UE). To facilitate the implementation of different data services and requirements, 3GPP 5G NR cellular networks support network slicing, which enables the reuse of virtualized and independent logical networks on the same physical network infrastructure.

[0003] A base station (or similar network entity) can use a machine learning model to predict or manage beams with a UE. The machine learning model can use the channel impulse response (CIR) information of multiple beams and calculate the parameters used to configure the beams used with the UE. Communicating CIR information brings many technical problems and challenges. Summary of the invention

[0004] The present disclosure provides a method for reporting a channel impulse response (CIR) to facilitate an artificial intelligence (AI) or machine learning (ML) based analysis or calculation at a base station for beam prediction, the method comprising: ● Quantification and reporting of CIR ● Additional reports associated with CIR reports to facilitate beam quality aware AI / ML based beam prediction

[0005] Details of this approach (and related systems and techniques) are discussed in detail below. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The described embodiments and advantages of the embodiments may be best understood by referring to the following description taken in conjunction with the accompanying drawings, which in no way limit any changes in form and detail that may be made to the described embodiments by one skilled in the art without departing from the spirit and scope of the described embodiments.

[0007] Figure 1 is a block diagram illustrating an example of beam prediction using a machine learning (ML) model by a network entity according to some embodiments;

[0008] Figure 2 is a block diagram illustrating an example framework for channel state information (CSI) according to some embodiments;

[0009] Figure 3An example call flow diagram for providing a channel impulse response (CIR) report is shown in accordance with some embodiments;

[0010] Figure 4 is a flow chart depicting a wireless communication method performed by a user equipment (UE) device according to some embodiments;

[0011] Figure 5 is a flow chart depicting a wireless communication method performed by a network entity according to some embodiments;

[0012] Figure 6 An example call flow diagram for providing a CIR report including beam quality information is shown in accordance with some embodiments;

[0013] Figure 7 is a flow chart depicting a wireless communication method performed by a user equipment (UE) device according to some embodiments;

[0014] Figure 8 is a flow chart depicting a wireless communication method performed by a network entity according to some embodiments;

[0015] Fig. 9 is a flow chart depicting a method of reporting CIR performed by a user equipment (UE) device according to some embodiments;

[0016] Fig.10 is a flow chart depicting a method of reporting a CIR performed by a network entity according to some embodiments. DETAILED DESCRIPTION

[0017] For ease of explanation, the following techniques are described in an example scenario in which one or more UE devices and a RAN implement one or more radio access technologies (RATs), including at least the fifth generation (5G) new radio (NR) standard (e.g., third generation partnership project (3GPP) release 15, 3GPP release 16, etc.) (hereinafter referred to as "5G NR" or "5G NR standard"). However, the present disclosure is not limited to networks configured with 5G NR RATs, but the techniques described herein can be applied to any combination of different ones adopted at the UE device and the RAN. In addition, the present disclosure is not limited to the examples and contexts described herein, but the techniques described herein can be applied to any network environment.

[0018] The present disclosure provides a method and system for reporting channel impulse responses of multiple beams for spatial analysis by machine learning. For example, a user equipment (UE) transmits an indication of the ability to report a channel impulse response (CIR) report to a network entity. The UE receives a configuration message including parameters of a CIR quantization scheme. The configuration message is transmitted by the network entity based on the indication and is used to configure the CIR report. The UE performs measurements based on the parameters of the CIR quantization scheme to obtain a quantized CIR value. The UE transmits a CIR report including the quantized CIR value to the network entity. The CIR report is generated based on the measurement.

[0019] Figure 1 1 is a block diagram 100 depicting an example of beam prediction using a machine learning (ML) model by a network entity according to some embodiments; a channel impulse response (CIR) helps the network predict beams in the time and space domains because the CIR carries additional channel characteristics, such as delay spread and angle spread. These characteristics are not available from traditional beam reports, such as layer 1 reference signal received power (L1-RSRP) or layer 1 signal to interference and noise ratio (L1-SINR). As shown, block diagram 100 shows an example of beam selection and / or prediction based on artificial intelligence or machine learning (AI / ML) at the network. The CIR obtained from different beams in at least one component carrier can be used as an input to the AI / ML model to select or predict one or more beams. The AI / ML model can select or predict at least one beam based on the CIR. In some examples, the AI / ML model can select or predict a beam for further communication. In some other examples, the AI / ML can select or predict a subset of beams for further beam measurement and reporting, thereby reducing the number of beams to be measured by the UE to reduce UE power consumption.

[0020] To use AI / ML-based beam management, the network can configure the UE to send SRS to utilize different beams for beam management, thereby deriving the CIR between the UE and the cell / TRP / beam. The maximum transmission power of the UE is much smaller than that of the gNB. In some cases, the UE may not be able to transmit SRS in a wide bandwidth due to insufficient transmission power. Then, a possible solution is that the UE measures the DL signal to obtain the CIR and reports the CIR to the network instead of transmitting SRS. However, it is not clear how to quantify the CIR to be reported.

[0021] In addition, the measurement accuracy of CIR depends on the channel quality. Under poor channel conditions, CIR may introduce additional noise (ie, interference) to the AI / ML model used for beam measurement. Additional inputs to the AI / ML model may be considered to eliminate interference. It is not clear how the UE reports additional information to facilitate interference elimination. The present disclosure provides a method for reporting a channel impulse response (CIR) to facilitate artificial intelligence (AI) or machine learning (ML)-based analysis or calculation at a base station for beam prediction, the method comprising: quantification and reporting of CIR, and additional reports associated with the CIR report to facilitate beam prediction based on beam quality-aware AI / ML.

[0022] Figure 2 is a block diagram depicting an example framework for channel state information (CSI) according to some embodiments. For a multiple-input multiple-output (MIMO) system, channel state information (CSI) is key information for the gNB to select a digital precoder for a UE. Generally, the gNB may configure CSI reporting through RRC signaling CSI-ReportConfig, where a channel state information reference signal (CSI-RS) is used as a channel measurement resource (CMR) for the UE to measure the downlink channel. At the same time, the gNB may configure some interference measurement resources (IMRs) for the UE to measure interference in CSI-ReportConfig. A CMR (e.g., a resource configured in resourcesForChannelMeasurement) may be associated with a zero-power IMR (ZP-IMR) (e.g., a resource configured in csi-IM-ResourcesForInterference) and / or a non-zero-power IMR (NZP-IMR) (e.g., a resource configured in nzp-CSI-RS-ResourcesForInterference). In an example, the NZP-IMR may be used for intra-cell interference measurement, while the ZP-IMR may be used for inter-cell interference measurement. For a UE with multi-beam operation, the UE should receive the CMR and the associated IMR using the same beam.

[0023] With the associated CMR and IMR, the UE is able to identify the CSI, which may include the rank indicator (RI), precoder matrix indicator (PMI), channel quality indicator (CQI), and layer indicator (LI). RI and PMI are used to determine the digital precoder, CQI is used to reflect the signal-to-interference and noise ratio (SINR) status to assist the gNB in ​​determining the modulation and coding scheme (MCS), and LI is used to identify the strongest layer, which may help with MU-MIMO pairing with low-rank transmission and precoder selection for phase tracking reference signal (PT-RS). For CSI-ReportConfig configured with more than 1 CMR, the UE can report the CSI-RS resource indicator (CRI) associated with the reported RI / PMI / CQI / LI to inform the gNB which CMR the CSI was measured from.

[0024] The gNB can configure the time domain behavior for CSI reporting in CSI-ReportConfig, such as periodic / semi-persistent / aperiodic reporting. The gNB can activate or deactivate semi-persistent CSI reporting via MAC Control Element (CE). The gNB can trigger aperiodic CSI reporting via Downlink Control Information (DCI). The UE can report periodic CSI via PUCCH resources configured in CSI-ReportConfig. The UE can report semi-persistent CSI via PUCCH resources configured in CSI-ReportConfig or PUSCH resources triggered by the gNB via DCI. The UE can report aperiodic CSI via PUSCH resources triggered by the gNB via DCI.

[0025] When the gNB communicates with the UE, the gNB may configure the UE to perform beam measurements based on the CSI framework, wherein the gNB may configure the UE to report layer 1 reference signal received power (L1-RSRP) or layer 1 signal to interference and noise ratio (L1-SINR) for several CMRs. The CMR may be a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS). The UE performs measurements on the CMR at different time instances and obtains at least one beam quality (e.g., L1-RSRP / L1-SINR) from the measurements. The UE may transmit the at least one beam quality and a beam index (e.g., SSB resource index (SSBRI) or CSI-RS resource index (CRI)). The UE may perform each of the at least one beam reports on the PUCCH / PUSCH, wherein the beam index and beam quality are reported in the CSI part 1 in each beam report.

[0026] For layer 1 related measurements, the following types of CSI-RS have been introduced since Rel-15:

[0027] The CSI-RS used for tracking is also called Tracking Reference Signal (TRS). It is a CSI-RS resource set configured with the RRC parameter TRS-Info. TRS is used for time / frequency offset tracking.

[0028] CSI-RS for beam management (BM): The CSI-RS for BM is configured in the CSI-RS resource set configured with the RRC parameter repetition.

[0029] CSI-RS for CSI acquisition. This is the CSI-RS used for CSI measurement and reporting. The CSI-RS for CSI acquisition is configured in the CSI-RS resource set that is not configured with the RRC parameters TRS-Info and repetition.

[0030] For AI / ML-based beam management, in this disclosure, the corresponding terms are defined as follows.

[0031] Figure 3 An example call flow diagram 300 for providing a channel impulse response (CIR) report is shown according to some embodiments. The following discussion first focuses on CIR quantization and reporting. As shown, call flow diagram 300 shows the process of CIR quantization and reporting.

[0032] Initially, the UE transmits one or more capabilities for CIR reporting to the gNB, such as the maximum number of CSI report configurations for CIR reporting, the maximum number of CMRs for CIR measurement, etc. Alternatively, the gNB receives the one or more capabilities from the core network (e.g., access and mobility management function (AMF)) or another gNB. Based on the one or more capabilities, the gNB sends at least one RRC message (e.g., RRCReconfiguration message or RRCResume message) to the UE to provide configuration parameters for CIR measurement and reporting.

[0033] The configuration parameters may configure the CIR report as periodic, semi-persistent, or aperiodic CIR reporting. In some implementations, the gNB includes the configuration parameters in at least one CSI-ReportConfig IE and includes the at least one CSI-ReportConfig IE in the at least one RRC message.

[0034] In one implementation, the configuration parameters include or configure a CIR quantization scheme for CIR quantization. In one implementation, the configuration parameters include a DL reference signal (DL-RS) set as a CMR and / or IMR for CIR measurement and reporting.

[0035] After transmitting the configuration parameters, the gNB may transmit a trigger message (e.g., MAC CE or DCI) to the UE to trigger the UE to transmit the CIR. In the case where the configuration parameters configure periodic CIR reporting, this trigger message may be skipped. In one implementation, the gNB may transmit a DCI to the UE to trigger aperiodic CIR reporting. In another implementation, the gNB may transmit a MAC CE to the UE to trigger semi-persistent CIR reporting. The gNB may transmit the DL-RS via multiple cells / TRPs. The UE measures the DL-RS and obtains the CIR from the measurement. In the case of aperiodic or semi-persistent CIR reporting, the UE may measure the DL-RS in response to receiving a trigger message.

[0036] Finally, the UE quantizes the CIR, generates a CSI report including the quantized CIR, and transmits the CSI report to the gNB on the PUSCH / PUCCH resources. The gNB receives the CSI report on the PUSCH / PUCCH resources and decodes the CSI report to obtain the quantized CIR. In some implementations, the PUSCH / PUCCH resources may be configured in configuration parameters and / or trigger messages (e.g., DCI). Details of each step are provided in the following embodiments.

[0037] In one embodiment, the one or more capabilities include at least one of the following capabilities: ● the maximum number of CSI reports configured for CIR reporting, ● The maximum number of CMRs configured for a CIR report per CIR report or across CIR reports, ● the maximum number of reported CIRs per CIR report, ● the maximum number of CMRs configured for CIR reporting in a timeslot, and / or ● The time domain reporting behavior of the CIR report (for example, aperiodic / semi-continuous / periodic).

[0038] In one embodiment, the configuration parameters include, for example, CMR / IMR resources, CIR quantization related parameters and / or reporting quantities.

[0039] In some other implementations, the gNB may configure the CSI-RS resource list as CMR and / or IMR in the configuration parameters. The gNB may transmit each of the CSI-RS resources from one antenna port. Alternatively, the gNB may transmit each of the CSI-RS resources from more than one antenna port. In some implementations, the gNB may transmit the CSI-RS resources to the UE via different cells and / or different TRPs of the same cell. Therefore, the quasi-co-located source of CMR may be SSB / CSI-RS from different cells / TRPs.

[0040] In some implementations, the UE quantizes each of the CIRs based on M frequency domain bases (FD bases). In one implementation, M is configured in a configuration parameter. In another implementation, M is reported by the UE in a CSI report. In one example, the UE may select the M FD bases with the strongest power or with a power above a threshold. In one implementation, the threshold is configured in a configuration parameter. In another implementation, the threshold is predefined.

[0041] In one example, the FD basis k may be generated based on a discrete Fourier transform (DFT) vector as follows:

[0042] Where N f Indicates the length of the CIR, which can be determined by the number of subcarriers per symbol or the number of subcarriers of all symbols allocated to the CMR. sc Determine and / or configure via RRC signaling; f represents the oversampling factor, which may be predefined, such as 0. f =1, or by N f Determine, or configure through RRC signaling.

[0043] In one example, the gNB can configure the number of subcarriers (N) for averaging via RRC signaling (e.g., RRC parameters in CSI-ReportConfig). sc1 ), then N f = ceil(N sc / N sc1 ).

[0044] In another example, the FD basis k may be generated based on a discrete cosine transform (DCT) vector as follows:

[0045] In one implementation, the UE obtains or generates CIR from CMR based on 1 antenna port. If CMR is configured with more than 1 antenna port in the configuration parameters, the antenna port index of the reported CIR can be predefined, such as the first antenna port, or configured in the configuration parameters, or determined based on the CIR with the strongest / weakest power, or reported by the UE in the CSI report. The 1-port CIR can be quantized as follows:

[0046] in, represents the coefficients of each FD basis of dimension 1 × M, which can be normalized or unnormalized; Indicates dimension N f × M FD basis matrix. or

[0047] Then, in the CSI report for the quantized 1-port CIR, the UE needs to report at least the coefficient matrix and FD base index k 0 , k 1 ,……,k M-1 In one example, the UE may report a length of N f In another example, the UE may explicitly report M FD base indices.

[0048] In another implementation, the UE obtains or generates the CIR based on all Np antenna ports from the CMR. In one implementation, the UE may report Np coefficient matrix sets and FD base index k 0 , k 1 ,……,k M-1 , where each set corresponds to an antenna port. In one example, the UE may report a length of N f In another example, the UE may explicitly report M FD base indices. In another implementation, the multi-port CIR may be quantized as follows:

[0049] in, represents the beam combining coefficient matrix with dimension 2L × M, which can be normalized or unnormalized; represents a matrix with dimension Np × 2L with L space domain bases (SD bases), which can be defined as follows:

[0050] in, represents the Kronecker product; L represents the number of beams, which can be configured in a configuration parameter (e.g., an RRC parameter in CSI-reportConfig), or is predefined, such as L=2, or is reported by the UE, such as in a CSI report or UE capability; N 1 、N 2 , O 1 and O 2 Related to the number of ports and oversampling factor in the horizontal and vertical domains, these parameters are configured in the configuration parameters (e.g., RRC parameters n1-n2 in CSI-ReportConfig), and the candidate values ​​should be determined based on the number of antenna ports of the CMR, e.g., N 1 *N 2 =N p Different values ​​of m and n can create different beams. Therefore, in this implementation, the UE may report L SD base index sets {m, n}, matrix coefficient matrices {m, n}, {m, n}, {n ... and FD base index k 0 , k 1 ,……,k M-1 In one example, the UE may report a length of N f In another example, the UE may explicitly report M FD base indices.

[0051] In some implementations, the gNB may configure the UE to report the CIR for CSI reporting by indicating a specific value of the RRC parameter reportQuantity (e.g., reportQuantity = 'cir') in the CSI-ReportConfig.

[0052] In one embodiment, the UE may measure the DL-RS of the CMR configured for CIR measurement and reporting. The CIR may be quantified based on the above embodiments.

[0053] In the CSI report for CIR reporting, the UE may include at least one of the following fields denoted as CIR information: ● Index of X CMRs with CIR reports ● Number of beams (L) ● Number of FD bases (M) ● The length of the FD base (N f ) ● Quantified CIR corresponding to X CMRs

[0054] In the "Index of X CMRs with CIR Report", the UE may include X CSI-RS Resource Indicators (CRIs) or X PRS Resource Indicators (PRIs). If the number of reported CIRs is the same as the number of configured CMRs, this field is not reported. If the CIR quantization parameters (e.g., the number of beams, the number of FD bases, and the length of the FD base) are configured by the gNB or are predefined, the corresponding field should not be reported. The "Quantized CIRs corresponding to X CMRs" may be X quantized CIRs, each of which is based on the above embodiment and may include at least one of a coefficient matrix, an FD base index, and an SD base index.

[0055] In some implementations, the UE transmits the CSI report in a short PUCCH format (e.g., a PUCCH with less than 4 symbols). Then, the CIR information may be reported in a single part. In other implementations, the UE transmits the CSI report in a long PUCCH format (e.g., a PUCCH with 4 or more symbols) or on the PUSCH. With these implementations, the CIR information may be included in CSI part 1 of the CSI report. Alternatively, the CIR information may be included in CSI part 2 of the CSI report. Alternatively, a portion of the CIR information may be reported in CSI part 1 of the CSI report, and the remainder of the CIR information may be reported in CSI part 2 of the CSI report.

[0056] In one example, CSI part 1 may include at least one of the following elements: ● Index of X CMRs with CIR reports ● Number of beams (L) ● Number of FD bases (M) ● The length of the FD base (N f )

[0057] The remainder (if reported) may be included in CSI Part 2.

[0058] In another example, CSI part 1 may include at least one of the following elements: ● Index of X CMRs with CIR reports ● Beam Index ● FD base index ● The length of the FD base (N f )

[0059] This coefficient matrix may be included in CSI part 2.

[0060] In some other implementations, the UE transmits a MAC CE including CIR information to the gNB instead of using CSI reporting. More specifically, the UE includes the MAC CE and the subheader of the MAC CE in a MAC PDU and transmits the MAC PDU on the PUSCH. The subheader may include a logical channel identifier that identifies the MAC CE including the CIR information.

[0061] Figure 4 is a flow chart depicting a wireless communication method 400 performed by a user equipment (UE) device according to some embodiments; Figure 5 is a flowchart depicting a wireless communication method 500 performed by a network entity according to some embodiments; the method 500 may be complementary to the method 400. The methods 400 and 500 may implement Figure 3 300 of the call flow diagram.

[0062] Figure 6 An example call flow diagram 600 for providing a CIR report including beam quality information is shown according to some embodiments. The call flow diagram 600 shows the general process of operation based on beam quality-aware AI / ML, similar to Figure 3 . Figure 6 and Figure 3 The difference between the two is that the gNB additionally configures the UE in the configuration parameters to measure and report the beam quality, such as L1-RSRP / L1-SINR. In some implementations, the gNB configures the DL-RS set as CMR and / or IMR and transmits the DL-RS for beam quality reporting. In some implementations, the gNB configures the DL-RS set in the CSI-ReportConfig IE and transmits at least one RRC message including the CSI-ReportConfig IE to the UE. In some implementations, the DL-RS set for CIR reporting and the DL-RS set for beam quality reporting include the same different DL-RS. In other implementations, the DL-RS for CIR reporting and beam quality reporting include different DL-RS. In yet other implementations, some of the DL-RS for CIR reporting and some of the DL RS for beam quality reporting include the same DL-RS, while the rest include different DL-RS. The UE can measure the same and / or different DL-RS and obtain CIR and beam quality based on the same or different DL-RS. The UE may quantize the CIR based on the above CIR quantization embodiment, quantize the measured L1-RSRP / L1-SINR, and then report the CIR and L1-RSRP / L1-SINR to the gNB on the PUCCH / PUSCH resources. The details and differences of each step are provided in the following embodiments.

[0063] In one embodiment, the gNB may configure the UE to measure the DL-RS and report the CIR and beam quality (e.g., L1-RSRP or L1-SINR) in one of the configuration parameters (e.g., RRC parameters in the CSI-ReportConfig IE). In one example, a new RRC parameter reportQuantity (e.g., reportQuantity-r18) is introduced in the CSI-ReportConfig IE. In one implementation, the new RRC parameter includes new candidate values ​​that instruct the UE to report CIR and L1-RSRP. For example, the new values ​​include 'cir-RSRP', 'cir-RSRP-18', 'cri-CIR-RSRP', 'cri-CIR-RSRP-18', 'ssb-Index-CIR-RSRP' and / or 'ssb-Index-CIR-RSRP-r18'. The words "CIR" and "RSRP" may be interchangeable. In another implementation, the new RRC parameter includes new candidate values ​​that instruct the UE to report CIR and L1-SINR. For example, the new values ​​include 'cir-SINR', 'cir-SINR-18', 'cri-CIR-SINR', 'cri-CIR-SINR-18', 'ssb-Index-CIR-SINR' and / or 'ssb-Index-CIR-SINR-r18'). The words "CIR" and "SINR" may be interchangeable. If the UE receives a new RRC parameter reportQuantity (e.g., reportQuantity-r18) in the CSI-ReportConfig IE, the UE may discard or ignore the legacy RRC parameter reportQualitity received in the CSI-ReportConfig IE.

[0064] In another example, an additional reportQuantity (e.g., reportQuantity-r18, reportQuantityExt-r18, or reportQuantityAdditonal-r18) is introduced in the CSI-ReportConfig IE and associated with the existing reportQuantity in the CSI-ReportConfig IE. The additional reportQuantity indicates or includes one or more values ​​indicating the report type CIR (e.g., 'cri', 'cri-cir', 'ssb-Index-CIR', 'cri-CIR-r18' and / or 'ssb-Index-CIR-r18'). In one implementation, the gNB may configure the UE to report L1-RSRP and CIR by setting the existing reportQuantity = 'cri-RSRP' or 'ssb-Index-RSRP', and additional reportQuantity = 'cri', 'cri-cir', 'ssb-Index-CIR', 'cri-CIR-r18', or 'ssb-Index-CIR-r18'. In another implementation, the gNB may configure the UE to report L1-SINR or CIR by setting the existing reportQuantity-r16 = 'cri-SINR-r16' or 'ssb-Index-SINR-r16', and additional reportQuantity = 'cri', 'cri-cir', 'ssb-Index-CIR', 'cri-CIR-r18', or 'ssb-Index-CIR-r18'.

[0065] In one implementation, if the UE is configured to report CIR and L1-RSRP, the UE may obtain CIR and L1-RSRP based on measurements of the same CMR set. In another implementation, if the UE is configured to report CIR and L1-RSRP, the UE may obtain CIR and L1-RSRP based on measurements of separate CMR sets. Therefore, the gNB may configure a first CMR set for CIR measurement and a second CMR set for L1-RSRP measurement through RRC signaling (e.g., RRC parameters in CSI-ReportConfig).

[0066] In one implementation, if the UE is configured to report CIR and L1-SINR, the UE may measure CIR and L1-SINR based on the same CMR set. The gNB may then configure an IMR set where IMR and CMR are associated one-to-one. The UE may then measure L1-SINR based on the configured CMR and IMR.

[0067] In one implementation, if the UE is configured to report CIR and L1-SINR, the UE can measure CIR and L1-SINR based on separate CMR sets. Therefore, the gNB can configure the first CMR set for CIR measurement and the second CMR set and IMR set for L1-SINR measurement through RRC signaling (e.g., RRC parameters in CSI-ReportConfig). The IMR and the second CMR set are associated one-to-one.

[0068] In some implementations, the first CMR set and the second CMR set may be associated one-to-one. The associated CMRs may be quasi-co-located or share the same quasi-co-located characteristics, for example, the associated CMRs may transmit based on the same beam.

[0069] In some implementations, the gNB may configure the number of reported L1-RSRP / L1-SINR via RRC signaling (RRC parameters in CSI-ReportConfig).

[0070] In one embodiment, the UE may report CIR information and L1-RSRP / L1-SINR information through PUCCH / PUSCH configured or triggered by the gNB, where the L1-RSRP / L1-SINR information may include at least one of the following elements: ● The index of the X CMRs among the CMRs used for L1-RSRP / L1-SINR reporting ● L1-RSRP / L1-SINR corresponding to X CMRs

[0071] For "Index of X CMRs in CMRs for L1-RSRP / L1-SINR reporting", if L1-RSRP / L1-SINR and CIR share a common CMR set, the first CMR set should be applied; otherwise, the second CMR set should be applied. If the number of configured CMRs is the same as the number of reported CMRs, this element may not be reported.

[0072] For “L1-RSRP / L1-SINR corresponding to X CMRs”, the UE may report the differential L1-RSRP / L1-SINR starting from the second reported CMR, where the measured L1-RSRP / L1-SINR of the first reported CMR should be used as a reference for the differential L1-RSRP / L1-SINR calculation.

[0073] In some implementations, the CIR may be reported via a short PUCCH format (eg, a PUCCH with a number of symbols less than 4). Then, the CIR information and the L1-RSRP / L1-SINR information may be reported in a single part.

[0074] In some implementations, the CIR may be reported via a long PUCCH format (e.g., a PUCCH with 4 or more symbols) or PUSCH. The CIR information and the L1-RSRP / L1-SINR information may then be reported in CSI part 1. Alternatively, the CIR information and the L1-RSRP / L1-SINR information may be reported in CSI part 2. Alternatively, the CIR information may be reported in CSI part 1 and the L1-RSRP / L1-SINR information may be reported in CSI part 2. Alternatively, the CIR information may be reported in CSI part 2 and the L1-RSRP / L1-SINR information may be reported in CSI part 1.

[0075] Alternatively, a portion of the CIR information may be reported in CSI part 1, the remaining portion of the CIR information may be reported in CSI part 2, and the L1-RSRP / L1-SINR information may be reported in CSI part 1 or CSI part 2. Alternatively, a portion of the L1-SINR / L1-RSRP information may be reported in CSI part 1, the remaining portion of the L1-SINR / L1-RSRP information may be reported in CSI part 2, and the CIR information may be reported in CSI part 1 or CSI part 2. Alternatively, the CIR information and a portion of the L1-RSRP / L1-SINR information may be reported in CSI part 1, and the CIR information and the remaining portion of the L1-RSRP / L1-SINR information may be reported in CSI part 2.

[0076] In one example, CSI part 1 may include at least one of the following elements: ● Index of X CMRs with CIR reports ● Number of beams (L) ● Number of FD bases (M) ● The length of the FD base (N f ) ● The index of the X CMRs among the CMRs used for L1-RSRP / L1-SINR reporting

[0077] The remaining elements (if reported) may be reported by CSI Part 2.

[0078] In another example, CSI part 1 may include at least one of the following elements: ● Index of X CMRs with CIR reports ● Beam Index ● FD base index ● The length of the FD base (N f )

[0079] The coefficient matrix corresponding to X CMRs and L1-RSRP / L1-SINR may be reported by CSI Part 2.

[0080] Figure 7 is a flow chart illustrating a wireless communication method 700 performed by a user equipment (UE) device according to some embodiments; Figure 8 8 is a flowchart of a wireless communication method 800 performed by a network entity according to some embodiments; the method 800 may be complementary to the method 700. The methods 700 and 800 may implement Figure 6 600 of the call flow diagram.

[0081] In the present disclosure, unless otherwise specified, RRC signaling may indicate an RRC reconfiguration message from the gNB to the UE, or a system information block (SIB), where the SIB may be an existing SIB (e.g., SIB1) or a new SIB (e.g., SIB J, J>21) transmitted by the gNB. In addition, the gNB may obtain the UE capabilities via UE capability report signaling or from the core network (e.g., access and mobility management function (AMF)).

[0082] In addition, in the present disclosure, the described solutions are based on 5G NR technology. It should be understood that the solutions can be applied to other wireless technologies such as 6G. "gNB" can generally refer to a base station or a radio access network (RAN) node.

[0083] Fig. 9900 is a flowchart depicting a method of reporting CIR performed by a user equipment (UE) device according to some embodiments. The method is performed by processing logic, which includes hardware (e.g., circuit system, dedicated logic, programmable logic, processor, processing device, central processing unit (CPU), system on chip (SoC), etc.), software (e.g., instructions and / or applications running / executed on a processing device), firmware (e.g., microcode), or a combination thereof. The method of flowchart 900 is performed by a UE device. The network entity may include one or more radio frequency (RF) modems, a processor coupled to the one or more RF modems, and at least one non-volatile memory storing executable instructions to manipulate at least one of the processor or the RF modem to perform the method of flowchart 900. The network entity may perform complementary methods to perform the method (see Figure 3 and Figure 6 300 and 600) to interact with a UE device.

[0084] refer to Fig. 9 , the method illustrates example functions used by various embodiments. Although specific functional blocks ("boxes") are disclosed in the method, such boxes are examples. That is, the embodiments are well suited to performing various other boxes or variations of boxes listed in the method. It should be understood that the various boxes in the method can be executed in an order different from the order presented, and not all boxes in the method can be executed.

[0085] like Fig. 9 As shown, the method includes block 910: transmitting, by a UE device to a network entity, an indication of an ability to report a channel impulse response (CIR) report.

[0086] The method includes block 920: receiving, by the UE device, a configuration message including parameters of a CIR quantization scheme, wherein the configuration message is transmitted by a network entity based on the indication and is used to configure CIR reporting.

[0087] The method includes block 930 of performing measurements based on parameters of a CIR quantization scheme to derive a quantized CIR value.

[0088] The method includes block 940 of transmitting a CIR report including a quantized CIR value to a network entity, wherein the CIR report is generated based on the measurement.

[0089] In some embodiments, the UE device performs measurements to obtain a CIR of a wireless communication channel by quantizing one or more measurements based on a CIR quantization scheme, and generates one or more quantized values ​​based on the measurements to obtain the CIR. In some cases, the UE device quantizes the one or more measurements by: determining a spatial domain basis based on a plurality of beams configured by the UE device according to a configuration message; identifying matrix coefficients based on the CIR quantization scheme; and determining a frequency domain basis matrix for calculating a quantized measurement of the CIR using the spatial domain basis and the matrix coefficients.

[0090] In some embodiments, the parameters of the CIR quantization scheme include a downlink reference signal set. The downlink reference signal set includes any one of the following: channel measurement resources (CMR); interference measurement resources (IMR); channel state information reference signal (CSI-RS); and positioning reference signal (PRS).

[0091] In some cases, the UE device may perform measurements of each reference signal in a downlink reference signal set. The UE device may provide corresponding values ​​corresponding to the measurements of each reference signal in the downlink reference signal set as inputs to the machine learning model. The UE device may process the inputs through the machine learning model to determine the location of the UE device; wherein the machine learning model determines one or more spatial characteristics of the UE device based on the signal measurements in the CIR report.

[0092] In some embodiments, a downlink reference signal set is received at a UE device and is based on transmissions from: (i) multiple antenna ports, (ii) multiple cells, (iii) multiple transmission / reception points (TRPs), or (iv) multiple beams. In some cases, the machine learning model determines one or more spatial characteristics of the UE device based on a CIR report of the downlink reference signal set.

[0093] In some embodiments, the configuration message includes a parameter value of a reporting quantity parameter, the reporting quantity parameter including any one of: the number of beams; the number of frequency domain bases; and the length of the frequency domain base. In some embodiments, the CIR report includes any one of: one or more indices of a plurality of channel measurement resources (CMRs); the number of beams; the number of frequency domain bases; and the length of the frequency domain base.

[0094] In some embodiments, the indication of the ability to report CIR reports includes any of: a maximum number of channel state information (CSI) reports that can be configured as CIR reports; a maximum number of channel measurement resources (CMRs) per CIR report or across multiple CIR reports; a maximum number of reported CIRs per CIR report; a maximum number of CMRs configured for CIR reporting within a timeslot; and a time domain reporting behavior including one of non-periodic, semi-persistent, and periodic reporting.

[0095] In some cases, the configuration message configures the UE device to generate a beam quality report.The method may also include receiving a trigger for generating a beam quality report; performing a beam quality measurement based on the trigger; and transmitting the beam quality measurement to a network entity along with the CIR report.

[0096] In some embodiments, the UE device may further configure a periodic CIR report at the UE device based on a configuration message; configure an aperiodic CIR report at the UE device based on a configuration message; or configure a semi-persistent CIR report at the UE device based on a configuration message. The UE device may transmit a CIR report by transmitting a CIR report based on a trigger message that triggers a CIR report at the UE device. The CIR report includes an aperiodic CIR report or a semi-persistent CIR report.

[0097] In some embodiments, the UE device may detect multiple downlink reference signals transmitted from multiple signal sources. For each of the multiple downlink reference signals, the UE device may derive a corresponding quantized CIR value or corresponding beam quality information based on a configuration message. The UE device may process: (i) the corresponding quantized CIR value of one or more of the multiple downlink reference signals and (ii) the corresponding beam quality information of one or more of the multiple downlink reference signals by using a machine learning model. In response to the processing, the UE device may predict a spatial characteristic indicating the location of the UE device by the machine learning model.

[0098] In some embodiments, the multiple signal sources include one or more of the following: a cell, a TRP, or an antenna. Each corresponding beam quality information includes one or more of the following: a layer 1 reference signal received power (L1-RSRP) or a layer 1 signal to interference and noise ratio (L1-SINR). Corresponding quantized CIR values ​​and corresponding beam quality information are derived for the same downlink reference signal. In some cases, multiple quantized CIR values ​​are derived for the first CMR set; and multiple beam quality information is derived for the second CMR set. The first CMR set is the same as the second CMR set.

[0099] Fig.101000 is a flowchart depicting a method 1000 of reporting a CIR performed by a network entity according to some embodiments. The method is performed by processing logic, which includes hardware (e.g., circuit system, dedicated logic, programmable logic, processor, processing device, central processing unit (CPU), system on chip (SoC), etc.), software (e.g., instructions and / or applications running / executed on a processing device), firmware (e.g., microcode), or a combination thereof. The method of flowchart 1000 is performed by a UE device. The network entity may include one or more radio frequency (RF) modems, a processor coupled to the one or more RF modems, and at least one non-volatile memory storing executable instructions to manipulate at least one of the processor or the RF modem to perform the method of flowchart 1000. The network entity may perform a complementary method of flowchart 1000 to perform the method (see Figure 3 and Figure 6 300 and 600) to interact with a UE device.

[0100] refer to Fig.10 , the method illustrates example functions used by various embodiments. Although specific functional blocks ("boxes") are disclosed in the method, such boxes are examples. That is, the embodiments are well suited to performing various other boxes or variations of boxes listed in the method. It should be understood that the various boxes in the method can be executed in an order different from the order presented, and not all boxes in the method can be executed.

[0101] like Fig.10 As shown, the method includes block 1010: receiving an indication of a capability to report a CIR report from a UE device. In some embodiments, the configuration message includes a radio resource control (RRC) message that configures the number of subcarriers for averaging.

[0102] The method includes block 1020 : in response to receiving the indication, transmitting a configuration message including parameters of a CIR quantization scheme to configure the UE device to generate a CIR report.

[0103] The method includes block 1030 of transmitting a plurality of reference signals to a UE device for CIR measurement.

[0104] The method includes block 1040 of receiving a CIR report including a quantized CIR value derived from a measurement of a parameter based on a CIR quantization scheme.

[0105] Unless specifically noted otherwise, terms such as "establishing", "receiving", "transmitting", etc. refer to actions and processes performed or implemented by a computing device that manipulate data represented as physical (electronic) quantities within registers and memories of the computing device into other data similarly represented as physical quantities within the computing device memory or registers or other such information storage, transmission, or display devices. In addition, the terms "first", "second", "third", "fourth", etc. as used herein are intended as labels to distinguish different elements and may not necessarily have ordinal meanings according to their numerical designations.

[0106] The examples described herein also relate to an apparatus for performing the operations described herein. This apparatus may be specially constructed for the desired purpose, or the apparatus may include a general-purpose computing device selectively programmed by a computer program stored in the computing device. Such a computer program may be stored in a computer-readable non-transitory storage medium.

[0107] The methods and illustrative examples described herein are not inherently related to any particular computer or other device. Various general purpose systems may be used according to the teachings described herein, or more specialized devices may be conveniently constructed to perform the required method steps. The required structures of a variety of these systems will be presented as described above.

[0108] The above description is intended to be illustrative rather than restrictive. Although the present disclosure has been described with reference to specific illustrative examples, it will be appreciated that the present disclosure is not limited to the described examples. The scope of the present disclosure should be determined with reference to the following claims and the full scope of equivalents to which the claims are authorized.

[0109] As used herein, the singular forms "a", "an", "an", "the", and "said" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the terms "include", "comprises", and / or "contains" when used herein specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Therefore, the terminology used herein is for the purpose of describing specific embodiments only and is not intended to be limiting.

[0110] It should also be noted that in some alternative implementations, the functions / actions noted may not occur in the order noted in the figures. For example, two figures shown in succession may actually be performed substantially simultaneously or may sometimes be performed in reverse order, depending on the functionality / actions involved.

[0111] Although the method operations are described in a particular order, it should be understood that other operations may be performed between the described operations, that the described operations may be adjusted so that they occur at slightly different times, or that the described operations may be distributed in a system that allows the processing operations to occur at various intervals associated with the process.

[0112] Various units, circuits, or other components may be described or claimed as being "configured to" or "configurable to" perform one or more tasks. In such contexts, the phrases "configured to" or "configurable to" are used to represent a structure by indicating that a unit / circuit / component includes a structure (e.g., a circuit system) that performs one or more tasks during operation. Thus, even if a specified unit / circuit / component is not currently operating (e.g., not turned on), it can be said that the unit / circuit / component is configured to perform a task, or is configurable to perform a task. Units / circuits / components used with the "configured to" or "configurable to" language include hardware - e.g., circuits, memory storing program instructions executable to implement operations, etc. The recitation that a unit / circuit / component is "configured to" perform one or more tasks, or "configurable to" perform one or more tasks is expressly intended not to invoke the sixth paragraph of 35 USC §112 with respect to that unit / circuit / component. Additionally, "configured to" or "configurable to" may include general structures (e.g., general circuitry) manipulated by software and / or firmware (e.g., an FPGA or a general purpose processor executing software) to operate in a manner capable of performing the tasks in question. "Configured to" may also include adjusting a manufacturing process (e.g., a semiconductor manufacturing facility) to manufacture a device (e.g., an integrated circuit) suitable for implementing or performing one or more tasks. "Configurable to" is expressly intended not to apply to blank media, an unprogrammed processor or an unprogrammed general purpose computer, or an unprogrammed programmable logic device, programmable gate array, or other unprogrammed device, unless accompanied by a programming medium that imparts the unprogrammed device with the ability to be configured to perform the disclosed functionality.

[0113] For the purpose of explanation, the above description has been described with reference to specific embodiments. However, the above illustrative discussion is not intended to be exhaustive or to limit the disclosure to the precise form disclosed. Many modifications and variations are possible in view of the above teachings. The embodiments are selected and described in order to best explain the principles of the embodiments and their practical application, so that those skilled in the art can best utilize the embodiments and various modifications that may be suitable for the intended specific use. Therefore, the embodiments of the present invention are considered to be illustrative and not restrictive, and the disclosure is not limited to the details given herein, but may be modified within the scope and equivalents of the appended claims. Example UE Example:

[0114] 1. A device comprising a processor configured to cause a user equipment (UE): a. Transmitting UE capabilities in terms of channel impulse response (CIR) reporting; b. Decoding control signaling of a CSI report configuration for a CIR report, wherein at least one downlink reference signal (DL-RS) is configured as a channel measurement resource (CMR), and the reporting amount is configured with at least one CIR report; c. Measuring CIR based on the configured DL-RS; d. quantifying the measured CIR based on the CIR quantization scheme; e. Transmit a CIR report with quantized CIR.

[0115] 2. A device according to Example 1, wherein the UE can report its capabilities in CIR measurement and reporting, including at least one of the following elements: a maximum number of CSI reports configured for CIR reporting, a maximum number of CMRs configured for CIR reporting per CIR report or across CIR reports, a maximum number of reported CIRs per CIR report, a maximum number of CMRs configured for CIR reporting within a time slot, and / or a time domain reporting behavior for CIR reporting.

[0116] 3. The apparatus of Example 1, wherein the DL-RS configured as a CMR may be a channel state information reference signal (CSI-RS).

[0117] 4. The apparatus of Example 1, wherein the CIR can be reported based on multiple antenna ports from the CMR.

[0118] 5. The apparatus of Example 1, wherein the CIR can be reported based on one antenna port from the CMR.

[0119] 6. The apparatus of Example 5, wherein the antenna ports may be predefined or configured via RRC signaling.

[0120] 7. The apparatus of Example 5, wherein the antenna port can be determined based on energy from the measured CIR of each antenna port.

[0121] 8. The apparatus of example 5, wherein the 1-port CIR can be quantified as ,in represents the coefficients of each frequency domain (FD) basis of dimension 1 × M, Indicates dimension N f × M FD basis matrix, N f is the length of the FD basis, and M is the number of FD basis.

[0122] 9. The apparatus of Example 8, wherein Can be normalized.

[0123] 10. The apparatus of Example 8, wherein an FD basis can be generated based on a discrete Fourier transform (DFT) vector.

[0124] 11. The apparatus of Example 8, wherein an FD basis can be generated based on a discrete cosine transform (DCT) vector.

[0125] 12. The apparatus of example 8, wherein N f It can be predefined or configured through RRC signaling.

[0126] 13. The apparatus of example 8, wherein N f It can be determined by the number of subcarriers of the measured CMR.

[0127] 14. The apparatus of Example 8, wherein M may be predefined or configured via RRC signaling.

[0128] 15. The apparatus of Example 8, wherein M can be reported by the UE.

[0129] 16. The apparatus of example 8, wherein for the quantized CIR, the UE may report The coefficients in and the indices of the M FD bases.

[0130] 17. The apparatus of example 5, wherein the multi-port CIR can be quantified as ,in represents the beam combining coefficient matrix with dimension 2L × M; represents a matrix with dimension Np × 2L and L spatial domain bases (SD-basis), Indicates dimension N f × M FD basis matrix, N f is the length of the FD basis, and M is the number of FD basis.

[0131] 18. The apparatus of example 17, wherein Can be normalized.

[0132] 19. The apparatus of Example 17, wherein an FD basis can be generated based on a discrete Fourier transform (DFT) vector.

[0133] 20. The apparatus of Example 17, wherein an FD basis can be generated based on a discrete cosine transform (DCT) vector.

[0134] 21. The apparatus of example 17, wherein N f It can be predefined or configured through RRC signaling.

[0135] 22. The apparatus of example 17, wherein N f It can be determined by the number of subcarriers of the measured CMR.

[0136] 23. The apparatus of Example 17, wherein M may be predefined or configured via RRC signaling.

[0137] 24. The apparatus of Example 17, wherein M can be reported by the UE.

[0138] 25. The apparatus of Example 17, wherein an SD basis can be generated based on a discrete Fourier transform (DFT) vector.

[0139] 26. The apparatus of example 17, wherein for the quantized CIR, the UE may report The coefficients in , the indices of the L SD bases, and the indices of the M FD bases.

[0140] 27. The apparatus of example 5 or 8, wherein for the quantized CIR, the UE may report and indices of M FD bases, where each set corresponds to a CIR from each antenna port of the CMR.

[0141] 28. An apparatus according to Example 1, wherein the UE can send the quantized CIR in a short PUCCH format in a single CSI part.

[0142] 29. An apparatus according to Example 1, wherein the UE can send quantized CIR in a short PUCCH format in multiple CSI parts.

[0143] 30. The apparatus of Example 1, wherein the UE may send the quantized CIR in a long PUCCH format or in a PUSCH.

[0144] 31. An apparatus according to Example 30, wherein a quantized CIR can be reported in CSI part 1.

[0145] 32. An apparatus according to Example 31, wherein a quantized CIR can be reported in CSI part 2.

[0146] 33. An apparatus according to Example 31, wherein a portion of the quantized CIR can be reported in CSI part 1 and the remaining portion of the quantized CIR can be reported in CSI part 2.

[0147] 34. A device according to Example 31, wherein the size of the quantized CIR reported in CSI part 2 can be determined based on the quantized CIR in CSI part 1.

[0148] 35. The apparatus of example 31, wherein the quantized CIR reported in CSI part 1 may include at least one of the following elements: an index of the X CMRs having the CIR report, a number of beams, a number of FD bases (M), and a length of the FD base, and the quantized CIR reported in CSI part 2 may include at least one of the following elements: The coefficients in , the indices of the L SD bases, and the indices of the M FD bases.

[0149] 36. The apparatus of example 31, wherein the quantized CIR reported in CSI part 1 may include at least one of the following elements: an index of the X CMRs with CIR reports, a beam index, an FD basis index, and a length of the FD basis, and the quantized CIR reported in CSI part 2 may include The coefficient in .

[0150] 37. The apparatus of example 1, wherein the UE may further: a. Decoding control signaling of a CSI report configuration for a CIR report and a beam quality report, wherein at least one downlink reference signal (DL-RS) is configured as a channel measurement resource (CMR) and the reporting amount is configured with at least one CIR report; b. Measure CIR and beam quality based on the configured DL-RS; c. quantizing the measured CIR based on the CIR quantization scheme; d. Transmit a beam quality report associated with the CIR report with the quantized CIR.

[0151] 38. An apparatus according to Example 37, wherein a common set of CMRs can be configured for CIR and beam quality measurements and reporting.

[0152] 39. An apparatus according to Example 37, wherein a first CMR set can be configured for CIR measurement and reporting, and a second CMR set can be configured for beam quality measurement and reporting.

[0153] 40. The apparatus of example 39, wherein the CMRs in the first set can be associated one-to-one with the CMRs in the second set.

[0154] 41. The apparatus of example 40, wherein the associated CMRs may be quasi-co-located or share the same quasi-co-located characteristics.

[0155] 42. An apparatus according to Example 31, wherein the beam quality can be based on layer 1 reference signal received power (L1-RSRP).

[0156] 43. The apparatus of Example 31, wherein the beam quality may be based on a layer 1 signal-to-interference-and-noise ratio (L1-SINR).

[0157] 44. The apparatus of Example 41, wherein the IMR set is configurable via RRC signaling.

[0158] 45. The apparatus of Example 37, wherein the UE may send the quantized CIR and L1-RSRP / L1-SINR in a short PUCCH format in a single CSI part.

[0159] 46. ​​The apparatus of Example 37, wherein the UE may send the quantized CIR and L1-RSRP / L1-SINR in a long PUCCH format or a PUSCH.

[0160] 47. The apparatus of Example 46, wherein quantized CIR and L1-RSRP / L1-SINR may be reported in CSI part 1.

[0161] 48. The apparatus of Example 46, wherein quantized CIR and L1-RSRP / L1-SINR may be reported in CSI part 2.

[0162] 49. An apparatus according to Example 46, wherein quantized CIR can be reported in CSI part 1 and L1-RSRP / L1-SINR can be reported in CSI part 2.

[0163] 50. The apparatus of Example 46, wherein the quantized CIR may be reported in CSI part 2 and the L1-RSRP / L1-SINR may be reported in CSI part 1.

[0164] 51. The apparatus of Example 31, wherein the quantized CIR and L1-RSRP / L1-SINR may be reported in CSI part 1, and the remainder of the quantized CIR may be reported in CSI part 2.

[0165] 52. An apparatus according to Example 31, wherein a portion of the quantized CIR can be reported in CSI part 1, and the remaining portion of the quantized CIR and L1-RSRP / L1-SINR can be reported in CSI part 2.

[0166] 53. A device according to Example 31, wherein a portion of the quantized CIR and a portion of the L1-RSRP / L1-SINR can be reported in CSI part 1, and the remaining portion of the quantized CIR and the remaining portion of the L1-RSRP / L1-SINR can be reported in CSI part 2.

[0167] 54. The apparatus of examples 51 to 53, wherein CSI part 1 may include at least one of the following elements: an index of X CMRs with CIR reporting, a number of beams, a number of FD bases (M), a length of the FD base, and an index of X CMRs with L1-RSRP / L1-SINR reporting, and CSI part 2 may include at least one of the following elements: The coefficients in , the indices of the L SD bases, the indices of the M FD bases, and the L1-RSRP / L1-SINR of the X CMRs.

[0168] 55. The apparatus of example 31, wherein the quantized CIR reported in CSI part 1 may include at least one of the following elements: an index of the X CMRs with CIR reporting, a beam index, an FD basis index, a length of the FD basis, and an index of the X CMRs with L1-RSRP / L1-SINR reporting, and CSI part 2 may include The coefficients in and the L1-RSRP / L1-SINR of X CMRs.

[0169] 56. The apparatus of examples 51 to 53, wherein CSI part 1 may include at least one of the following elements: an index of X CMRs with CIR reports, a number of beams, a number of FD bases (M), a length of the FD bases, and an index of X CMRs with L1-RSRP / L1-SINR reports and corresponding L1-RSRP / L1-SINR, and CSI part 2 may include at least one of the following elements: The coefficients in , the indices of the L SD bases, and the indices of the M FD bases.

[0170] 57. The apparatus of example 31, wherein the quantized CIR reported in CSI part 1 may include at least one of the following elements: an index of X CMRs with CIR reporting, a beam index, an FD basis index, a length of the FD basis, and an index of X CMRs with L1-RSRP / L1-SINR reporting and the corresponding L1-RSRP / L1-SINR, and CSI part 2 may include The coefficient in . BS Example

[0171] 1. An apparatus, comprising a processor configured to cause a base station (BS): a. UE capability to receive channel impulse response (CIR) reports; b. Control signaling for transmitting a CSI report configuration for a CIR report, wherein at least one downlink reference signal (DL-RS) is configured as a channel measurement resource (CMR), and the reporting amount is configured with at least one CIR report; c. Transmission is configured as DL-RS of CMR; d. Determine the CIR quantification scheme; e. Decode the CIR report based on the determined CIR quantization scheme.

[0172] 2. A device according to Example 1, wherein the BS can decode UE capabilities in terms of CIR measurement and reporting, including at least one of the following elements: a maximum number of CSI reports configured for CIR reporting, a maximum number of CMRs configured for CIR reporting per CIR report or across CIR reports, a maximum number of reported CIRs per CIR report, a maximum number of CMRs configured for CIR reporting within a time slot, and / or a time domain reporting behavior for CIR reporting.

[0173] 3. The apparatus of Example 1, wherein the DL-RS configured as a CMR may be a channel state information reference signal (CSI-RS).

[0174] 4. The apparatus of example 1, wherein the CIR can be quantized based on one antenna port from the CMR.

[0175] 5. The apparatus of Example 5, wherein the antenna ports may be predefined or configured via RRC signaling.

[0176] 6. The apparatus of Example 5, wherein the antenna port can be determined based on energy from the measured CIR of each antenna port.

[0177] 7. The apparatus of example 5, wherein the 1-port CIR can be quantified as ,in represents the coefficients of each frequency domain (FD) basis of dimension 1 × M, Indicates dimension N f × M FD basis matrix, N f is the length of the FD basis, and M is the number of FD basis.

[0178] 8. The apparatus of Example 8, wherein Can be normalized.

[0179] 9. The apparatus of Example 8, wherein an FD basis can be generated based on a discrete Fourier transform (DFT) vector.

[0180] 10. The apparatus of Example 8, wherein an FD basis can be generated based on a discrete cosine transform (DCT) vector.

[0181] 11. The apparatus of example 8, wherein N f It can be predefined or configured through RRC signaling.

[0182] 12. The apparatus of example 8, wherein N f It can be determined by the number of subcarriers of the measured CMR.

[0183] 13. The apparatus of Example 8, wherein M may be predefined or configured via RRC signaling.

[0184] 14. The apparatus of Example 8, wherein the BS can decode based on the UE report M.

[0185] 15. The apparatus of example 8, wherein the BS can decode The coefficients in and the indices of the M FD bases.

[0186] 16. The apparatus of Example 1, wherein the CIR can be quantized based on multiple antenna ports from the CMR.

[0187] 17. The apparatus of example 5, wherein the multi-port CIR can be quantified as ,in represents the beam combining coefficient matrix with dimension 2L × M; represents a matrix with dimension Np × 2L and L spatial domain bases (SD-basis), Indicates dimension N f × M FD basis matrix, N f is the length of the FD basis, and M is the number of FD basis.

[0188] 18. The apparatus of example 17, wherein Can be normalized.

[0189] 19. The apparatus of Example 17, wherein an FD basis can be generated based on a discrete Fourier transform (DFT) vector.

[0190] 20. The apparatus of Example 17, wherein an FD basis can be generated based on a discrete cosine transform (DCT) vector.

[0191] 21. The apparatus of example 17, wherein N f It can be predefined or configured through RRC signaling.

[0192] 22. The apparatus of example 17, wherein N f It can be determined by the number of subcarriers of the measured CMR.

[0193] 23. The apparatus of Example 17, wherein M may be predefined or configured via RRC signaling.

[0194] 24. An apparatus according to Example 17, wherein the BS can decode based on the UE report M.

[0195] 25. The apparatus of Example 17, wherein an SD basis can be generated based on a discrete Fourier transform (DFT) vector.

[0196] 26. The apparatus of example 17, wherein for a quantized CIR, the gNB may decode The coefficients in , the indices of the L SD bases, and the indices of the M FD bases.

[0197] 27. The apparatus of examples 5 and 8, wherein for a quantized CIR, the gNB may decode and indices of M FD bases, where each set corresponds to a CIR from each antenna port of the CMR.

[0198] 28. The apparatus of Example 1, wherein the BS can decode the quantized CIR in a short PUCCH format in a single CSI part.

[0199] 29. The apparatus of Example 1, wherein the BS can quantize the CIR in a long PUCCH format or PUSCH decoding.

[0200] 30. An apparatus according to Example 30, wherein the quantized CIR may be in CSI part 1.

[0201] 31. An apparatus according to Example 31, wherein the quantized CIR may be in CSI part 2.

[0202] 32. An apparatus according to Example 31, wherein a portion of the quantized CIR can be in CSI part 1 and the remaining portion of the quantized CIR can be in CSI part 2.

[0203] 33. An apparatus according to Example 31, wherein the size of the quantized CIR in CSI part 2 can be determined based on the quantized CIR in CSI part 1.

[0204] 34. The apparatus of example 31, wherein the quantized CIR in CSI part 1 may include at least one of the following elements: an index of the X CMRs having CIR reports, a number of beams, a number of FD bases (M), and a length of the FD base, and the quantized CIR in CSI part 2 may include at least one of the following elements: The coefficients in , the indices of the L SD bases, and the indices of the M FD bases.

[0205] 35. The apparatus of example 31, wherein the quantized CIR in CSI part 1 may include at least one of the following elements: an index of the X CMRs with CIR reports, a beam index, an FD basis index, and a length of the FD basis, and the quantized CIR in CSI part 2 may include The coefficient in .

[0206] 36. The apparatus of example 1, wherein the BS may further: a. Control signaling for transmitting a CSI report configuration for a CIR report and a beam quality report, wherein at least one downlink reference signal (DL-RS) is configured as a channel measurement resource (CMR) and the reporting amount is configured with at least one CIR report; b. Transmitting DL-RS configured as CMR for CIR and beam quality measurement and reporting; c. Determine the reporting format of CIR and beam quality reports using the CIR quantification scheme; d. Decode the CIR and beam quality reports based on the determined reporting format and CIR quantization scheme.

[0207] 37. An apparatus according to Example 37, wherein a common set of CMRs can be configured for CIR and beam quality measurements and reporting.

[0208] 38. An apparatus according to Example 37, wherein a first CMR set can be configured for CIR measurement and reporting, and a second CMR set can be configured for beam quality measurement and reporting.

[0209] 39. The apparatus of example 39, wherein the CMRs in the first set can be associated one-to-one with the CMRs in the second set.

[0210] 40. The apparatus of example 40, wherein the associated CMRs may be quasi-co-located or share the same quasi-co-located characteristics.

[0211] 41. An apparatus according to Example 31, wherein the beam quality can be based on layer 1 reference signal received power (L1-RSRP).

[0212] 42. The apparatus of Example 31, wherein the beam quality may be based on a layer 1 signal-to-interference-and-noise ratio (L1-SINR).

[0213] 43. The apparatus of Example 41, wherein the IMR set is configurable via RRC signaling.

[0214] 44. The apparatus of Example 37, wherein the BS can decode the quantized CIR and L1-RSRP / L1-SINR in a short PUCCH format in a single CSI part.

[0215] 45. The apparatus of Example 37, wherein the BS can quantize the CIR and L1-RSRP / L1-SINR in a long PUCCH format or PUSCH decoding.

[0216] 46. ​​The apparatus of Example 46, wherein the quantized CIR and L1-RSRP / L1-SINR may be in CSI part 1.

[0217] 47. An apparatus according to Example 46, wherein the quantized CIR and L1-RSRP / L1-SINR can be in CSI part 2.

[0218] 48. An apparatus according to Example 46, wherein the quantized CIR can be in CSI part 1 and the L1-RSRP / L1-SINR can be in CSI part 2.

[0219] 49. An apparatus according to Example 46, wherein the quantized CIR can be in CSI part 2 and the L1-RSRP / L1-SINR can be in CSI part 1.

[0220] 50. The apparatus of Example 31, wherein a portion of the quantized CIR and L1-RSRP / L1-SINR may be in CSI part 1, and a remaining portion of the quantized CIR may be in CSI part 2.

[0221] 51. The apparatus of Example 31, wherein a portion of the quantized CIR may be in CSI part 1, and a remaining portion of the quantized CIR and L1-RSRP / L1-SINR may be in CSI part 2.

[0222] 52. An apparatus according to Example 31, wherein a portion of the quantized CIR and a portion of the L1-RSRP / L1-SINR can be in CSI part 1, and the remaining portion of the quantized CIR and the remaining portion of the L1-RSRP / L1-SINR can be in CSI part 2.

[0223] 53. The apparatus of examples 51 to 53, wherein CSI part 1 may include at least one of the following elements: an index of X CMRs with CIR reporting, a number of beams, a number of FD bases (M), a length of the FD base, and an index of X CMRs with L1-RSRP / L1-SINR reporting, and CSI part 2 may include at least one of the following elements: The coefficients in , the indices of the L SD bases, the indices of the M FD bases, and the L1-RSRP / L1-SINR of the X CMRs.

[0224] 54. The apparatus of example 31, wherein the quantized CIR reported in CSI part 1 may include at least one of the following elements: an index of the X CMRs with CIR reporting, a beam index, an FD basis index, a length of the FD basis, and an index of the X CMRs with L1-RSRP / L1-SINR reporting, and CSI part 2 may include The coefficients in and the L1-RSRP / L1-SINR of X CMRs.

[0225] 55. The apparatus of examples 51 to 53, wherein CSI part 1 may include at least one of the following elements: an index of X CMRs with CIR reports, a number of beams, a number of FD bases (M), a length of the FD bases, and an index of X CMRs with L1-RSRP / L1-SINR reports and corresponding L1-RSRP / L1-SINR, and CSI part 2 may include at least one of the following elements: The coefficients in , the indices of the L SD bases, and the indices of the M FD bases.

[0226] 56. The apparatus of example 31, wherein the quantized CIR reported in CSI part 1 may include at least one of the following elements: an index of X CMRs with CIR reporting, a beam index, an FD basis index, a length of the FD basis, and an index of X CMRs with L1-RSRP / L1-SINR reporting and the corresponding L1-RSRP / L1-SINR, and CSI part 2 may include The coefficient in .

Claims

1. A method for wireless communication performed by a user equipment (UE), the method comprising: Transmitting, by the UE device to a network entity, an indication of a capability to report a channel impulse response (CIR) report; receiving, by the UE device, a configuration message including parameters of a CIR quantization scheme, wherein the configuration message is transmitted by the network entity based on the indication and is used to configure the CIR report; performing measurements based on the parameters of the CIR quantization scheme to derive a quantized CIR value; as well as The CIR report including the quantized CIR value is transmitted to the network entity, wherein the CIR report is generated based on the measurement.

2. The method of claim 1, wherein performing the measurement further comprises: quantizing one or more measurements for obtaining a CIR of a wireless communication channel based on the CIR quantization scheme; as well as One or more quantized values ​​are generated based on the measurements used to obtain the CIR.

3. The method of claim 2, wherein quantifying the one or more measurements comprises: Determining a spatial domain basis based on a plurality of beams configured by the UE device according to the configuration message; identifying matrix coefficients based on the CIR quantization scheme; as well as A frequency domain basis matrix is ​​determined for use in computing a quantized measure of the CIR using the spatial domain basis and the matrix coefficients.

4. The method of claim 1, wherein: The parameters of the CIR quantization scheme include a downlink reference signal set; and The downlink reference signal set includes any one of the following: Channel measurement resource CMR; Interference measurement resource IMR; Channel state information reference signal CSI-RS; as well as Positioning Reference Signal PRS.

5. The method of claim 4, further comprising: performing said measurement on each reference signal in said downlink reference signal set; providing respective values ​​corresponding to the measurements of each reference signal in the downlink reference signal set as input to a machine learning model; as well as The input is processed by the machine learning model to determine the location of the UE device; wherein the machine learning model determines one or more spatial characteristics of the UE device based on signal measurements in the CIR report.

6. The method of claim 5, wherein: The downlink reference signal set is received at the UE device and is based on: (i) transmissions from multiple antenna ports, (ii) transmissions from multiple cells, (iii) transmissions from multiple transmit / receive points TRP, or (iv) transmissions corresponding to multiple beams, The machine learning model determines one or more spatial characteristics of the UE device based on the CIR report.

7. The method of claim 1, wherein the configuration message includes a parameter value of a reporting amount parameter, and the reporting amount parameter includes any one of the following: The number of beams; the number of frequency domain bases; and The length of the frequency domain basis.

8. The method of claim 7, wherein the CIR report comprises any one of the following: one or more indexes of a plurality of channel measurement resources CMRs; the number of said beams; The number of frequency domain bases; and The length of the frequency domain basis.

9. The method of claim 1, wherein the indication of the ability to report the CIR report comprises any of: The maximum number of channel state information (CSI) reports that can be configured as CIR reports; Maximum number of channel measurement resources CMRs per CIR report or across multiple CIR reports; The maximum number of reported CIRs per CIR report; The maximum number of CMRs configured for CIR reporting in a timeslot; and Time domain reporting behavior, including one of aperiodic, semi-continuous, and periodic reporting.

10. The method of claim 1, wherein: The configuration message configures the UE device to generate a beam quality report, and the method further comprises: receiving a trigger for generating the beam quality report; performing beam quality measurement based on the trigger; and The beam quality measurement is transmitted to the network entity along with the CIR report.

11. The method of claim 1 , further comprising: configuring periodic CIR reporting at the UE device based on the configuration message; configuring aperiodic CIR reporting at the UE device based on the configuration message; or Semi-persistent CIR reporting at the UE device is configured based on the configuration message.

12. The method of claim 11, wherein transmitting the CIR report comprises: The CIR report is transmitted based on a trigger message that triggers a CIR report at the UE device, wherein the CIR report comprises an aperiodic CIR report or a semi-persistent CIR report.

13. The method of claim 1, further comprising: detecting, by the UE device, a plurality of downlink reference signals transmitted from a plurality of signal sources; For each of the multiple downlink reference signals: derive a corresponding quantized CIR value or corresponding beam quality information based on the configuration message; Processing, by a machine learning model: (i) the corresponding quantized CIR value of one or more of the plurality of downlink reference signals and (ii) the corresponding beam quality information of one or more of the plurality of downlink reference signals; as well as In response to processing, a spatial characteristic indicative of a location of the UE device is predicted by the machine learning model.

14. The method of claim 13, wherein the plurality of signal sources comprises one or more of: a cell, a TRP, or an antenna.

15. The method of claim 14, wherein each corresponding beam quality information comprises one or more of the following: a layer 1 reference signal received power L1-RSRP or a layer 1 signal to interference and noise ratio L1-SINR.

16. The method of claim 15, wherein the corresponding quantized CIR value and the corresponding beam quality information are derived for the same downlink reference signal.

17. The method of claim 15, wherein: A plurality of quantized CIR values ​​are derived for a first CMR set; and A plurality of beam quality information is derived for the second CMR set. The method of claim 17 , wherein the first CMR set is the same as the second CMR set.

19. A method of wireless communication performed by a network entity, the method comprising: receiving, from a user equipment (UE) device, an indication of a capability to report a channel impulse response (CIR) report; In response to receiving the indication, transmitting a configuration message including parameters of a CIR quantization scheme to configure the UE device to generate the CIR report; transmitting a plurality of reference signals to the UE device for CIR measurement; as well as The CIR report is received, the CIR report comprising a quantized CIR value derived from a measurement of the parameter based on the CIR quantization scheme.

20. The method of claim 19, wherein: The parameters of the CIR quantization scheme include a downlink reference signal set; and The downlink reference signal set includes any one of the following: Channel measurement resource CMR; Interference measurement resource IMR; Channel state information reference signal CSI-RS; as well as Positioning Reference Signal PRS.

21. The method of claim 20, wherein: The downlink reference signal set is received at the UE device and is based on: (i) transmissions from multiple antenna ports, (ii) transmissions from multiple cells, (iii) transmissions from multiple transmit / receive points TRP, or (iv) Transmission corresponding to multiple beams.

22. The method of claim 19, wherein the configuration message includes a parameter value of a reporting amount parameter, and the reporting amount parameter includes any one of the following: The number of beams; the number of frequency domain bases; and The length of the frequency domain basis.

23. The method of claim 22, wherein the CIR report comprises any one of: one or more indexes of a plurality of channel measurement resources CMRs; the number of said beams; The number of frequency domain bases; and The length of the frequency domain basis.

24. The method of claim 19, wherein the indication of the ability to report the CIR report comprises any of: The maximum number of channel state information (CSI) reports that can be configured as CIR reports; Maximum number of channel measurement resources CMRs per CIR report or across multiple CIR reports; The maximum number of reported CIRs per CIR report; The maximum number of CMRs configured for CIR reporting in a timeslot; and Time domain reporting behavior, including one of aperiodic, semi-continuous, and periodic reporting.

25. The method of claim 19, wherein: The configuration message configures the UE device to generate a beam quality report, and the method further comprises: transmitting a trigger for generating the beam quality report; and The CIR report including a beam quality measurement is received from the UE device.

26. The method of claim 19, wherein receiving the CIR report comprises: transmitting a trigger message to the UE device; as well as The CIR report including a non-periodic CIR report or a semi-persistent CIR report is received.

27. The method of claim 26, wherein transmitting the plurality of reference signals comprises transmitting via one or more of: a cell, a TRP, or an antenna.

28. The method of claim 27, wherein each corresponding beam quality information comprises one or more of the following: layer 1 reference signal received power L1-RSRP or layer 1 signal to interference and noise ratio L1-SINR.

29. The method of claim 28, wherein the corresponding quantized CIR value and the corresponding beam quality information are derived for the same downlink reference signal.

30. The method of claim 28, wherein: A plurality of quantized CIR values ​​are derived for a first CMR set; and A plurality of beam quality information is derived for the second CMR set.

31. The method of claim 30, wherein the first CMR set is the same as the second CMR set.

32. The method of claim 19, wherein the configuration message comprises a Radio Resource Control (RRC) message configuring the number of subcarriers for averaging.

33. A user equipment UE, comprising: one or more radio frequency (RF) modems; a processor coupled to the one or more RF modems; as well as At least one memory storing executable instructions for manipulating at least one of the processor or the one or more RF modems to perform the method of any one of claims 1 to 18.

34. A network entity comprising: one or more radio frequency (RF) modems; a processor coupled to the one or more RF modems; as well as At least one memory storing executable instructions for manipulating at least one of the processor or the one or more RF modems to perform the method of any one of claims 19 to 32.

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