Terminal, wireless communication method, base station and system

Abstract

A terminal, according to one embodiment of the present disclosure, is characterized by including: a control unit that uses the calculation time for model inference to determine the channel state information (CSI) report transmission timing. The embodiment of the present disclosure makes it possible to achieve suitable overhead reduction, channel estimation, and resource utilization.

Description

Terminal, wireless communication method and base station

[0001] The present disclosure relates to a terminal, a wireless communication method, and a base station in a next-generation mobile communication system.

[0002] Long Term Evolution (LTE) has been specified for the Universal Mobile Telecommunications System (UMTS) network with the aim of achieving higher data rates and lower latency (Non-Patent Document 1). Also, LTE-Advanced (3GPP Rel. 10-14) has been specified with the aim of achieving higher capacity and more advanced features than LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).

[0003] Successor systems to LTE (e.g., 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 or later, etc.) are also being considered.

[0004] 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)”, April 2010

[0005] For future wireless communication technologies, utilization of artificial intelligence (AI) techniques such as machine learning (ML) for network / device control, management, and the like is being considered. For example, for future wireless communication technologies, utilization of AI techniques is being considered for improving channel state information reference signal (CSI) feedback from terminals (user terminals, user equipment (UE)), for example, reducing overhead, improving accuracy, prediction, and the like. CSI feedback based on AI techniques may be referred to as AI-aided CSI feedback.

[0006] However, the specific content of CSI feedback using AI / ML models has not yet been studied. Unless these are properly specified, it may be impossible to achieve appropriate overhead reduction, highly accurate channel estimation, and highly efficient resource utilization, which may hinder improvements in communication throughput and communication quality.

[0007] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can achieve suitable overhead reduction / channel estimation / resource utilization.

[0008] A terminal according to one aspect of the present disclosure is characterized by having a control unit that determines a timing for transmitting a channel state information (CSI) report using a calculation time for model inference, and a transmission unit that transmits the CSI report at the transmission timing.

[0009] According to one aspect of the present disclosure, it is possible to achieve favorable overhead reduction / channel estimation / resource utilization.

[0010] FIG. 1 illustrates an example of CSI feedback using an AI / ML encoder. FIG. 2 illustrates an example of encoder selection. FIG. 3 illustrates an example of predicted CSI reporting. FIGS. 4A and 4B illustrate a first example of CPU occupancy time. FIGS. 5A and 5B illustrate a second example of CPU occupancy time. FIGS. 6A, 6B, and 6C illustrate a method for calculating the number of CPUs (N) for CSI reporting. ＣＰＵ ) and the number of simultaneous model inferences. FIG. 7A is a diagram showing CPU / GPU occupancy symbols for option 1 of aspects 1-5. FIG. 7B is a diagram showing CPU / GPU occupancy symbols for option 2 of aspects 1-5. FIG. 8 is a diagram showing examples of conditions for reporting CSI to a base station. FIGS. 9A and 9B are diagrams showing examples of CSI calculation delay requirements. FIG. 10 is a diagram showing examples of time gaps (Z ｒｅｆ , Z' ｒｅｆ ) is a diagram showing an example of a CSI calculation delay time for option 2 of aspect 2-1. FIG. 12 is a diagram showing an example of a CSI reference resource. FIG. 13 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment. FIG. 14 is a diagram showing an example of a configuration of a base station according to an embodiment. FIG. 15 is a diagram showing an example of a configuration of a user terminal according to an embodiment. FIG. 16 is a diagram showing an example of the hardware configuration of a base station and a user terminal according to an embodiment. FIG. 17 is a diagram showing an example of a vehicle according to an embodiment.

[0011] (Application of Artificial Intelligence (AI) Technology to Wireless Communications) With regard to future wireless communications technologies, the use of AI technology such as machine learning (ML) for network / device control and management is being considered.

[0012] For example, for future wireless communication technologies, utilization of AI techniques is being considered to improve Channel State Information Reference Signal (CSI) feedback, e.g., to reduce overhead, improve accuracy, prediction, etc. CSI feedback based on AI techniques may be referred to as AI-aided CSI feedback.

[0013] The channel measurement / estimation may be performed using at least one of, for example, a Channel State Information Reference Signal (CSI-RS), a Synchronization Signal (SS), a Synchronization Signal / Physical Broadcast Channel (SS / PBCH) block, a Demodulation Reference Signal (DMRS), a Sounding Reference Signal (SRS), etc.

[0014] In addition, the existing CSI may include at least one of a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), a CSI-RS Resource Indicator (CRI), a SS / PBCH Block Resource Indicator (SSBRI), a Layer Indicator (LI), a Rank Indicator (RI), L1-RSRP (Layer 1 Reference Signal Received Power), L1-RSRQ (Reference Signal Received Quality), L1-SINR (Signal to Interference plus Noise Ratio), L1-SNR (Signal to Noise Ratio), etc.

[0015] In AI-assisted CSI feedback, it is necessary to reduce this information or feed back smaller information to replace it.

[0016] As one method of AI-assisted CSI feedback, an autoencoder has been considered. However, specific details, such as what should be used as input to the autoencoder, have not yet been explored. Unless these are properly specified, it may be impossible to achieve appropriate overhead reduction, highly accurate channel estimation, and highly efficient resource utilization, which may hinder improvements in communication throughput and communication quality.

[0017] Therefore, the present inventors have devised a control method suitable for AI-assisted CSI feedback. Note that each embodiment of the present disclosure may be applied when AI / prediction is not used.

[0018] In one embodiment of the present disclosure, a terminal (user equipment (UE)) / base station (BS) trains an ML model in a training mode and executes the ML model in a test mode (also referred to as a test mode, etc.). In the test mode, the accuracy of the ML model trained in the training mode may be validated.

[0019] In the present disclosure, the UE / BS may input channel state information, reference signal measurements, etc. to the ML model and output highly accurate channel state information / measurements / beam selection / position, future channel state information / radio link quality, etc.

[0020] In the present disclosure, AI may be interpreted as an object (also called a subject, object, data, function, program, etc.) that has (performs) at least one of the following characteristics: - Estimation based on observed or collected information; - Selection based on observed or collected information; - Prediction based on observed or collected information.

[0021] In the present disclosure, the object may be, for example, an apparatus, device, etc., such as a terminal or a base station. The object may also correspond to a program included in the apparatus.

[0022] Also, in the present disclosure, an ML model may be interpreted as an object having (implementing) at least one of the following characteristics: - Generating an estimate by feeding information; - Predicting an estimate by feeding information; - Discovering features by feeding information; - Selecting an action by feeding information.

[0023] In the present disclosure, the term "ML model" may be read as at least one of a model, an AI model, predictive analytics, a predictive analysis model, etc. The ML model may be derived using at least one of regression analysis (e.g., linear regression analysis, multiple regression analysis, logistic regression analysis), a support vector machine, a random forest, a neural network, deep learning, etc. In the present disclosure, the term "model" may be read as at least one of an encoder, a decoder, a tool, etc.

[0024] The ML model outputs at least one piece of information, such as an estimate, a prediction, a selected action, or a classification, based on input information.

[0025] ML models may include supervised learning, unsupervised learning, and reinforcement learning. Supervised learning may be used to learn general rules that map inputs to outputs. Unsupervised learning may be used to learn features of data. Reinforcement learning may be used to learn behaviors to maximize a goal.

[0026] Each embodiment described below will be mainly described assuming that supervised learning is used in an ML model, but the present invention is not limited to this.

[0027] (Autoencoder for CSI Feedback) The UE may compress the CSI feedback using an autoencoder (AI / ML encoder), and the base station may reconstruct the CSI feedback using an AI / ML decoder.

[0028] FIG. 1 is a diagram illustrating an example of CSI feedback using an AI / ML encoder. A UE inputs information about CSI to an AI / ML encoder and transmits encoded bits to a base station (BS). The CSI information is, for example, information about a channel matrix and / or information about a precoding matrix. The base station (BS) receives the encoded bits and inputs them to an AI / ML decoder. The base station can then refer to the information about the decoded CSI.

[0029] If the UE is configured with multiple encoders, the UE may receive information indicating which encoder to apply. If the UE decides not to use an encoder, it may implement legacy PMI reporting (e.g., fall back to PMI calculation / reporting as specified in Rel. 16 NR).

[0030] 2 is a diagram showing an example of encoder selection. In this example, a UE can use two encoders (encoders #1 and #2). When the UE is notified by the base station that encoder #1 should be used, encoder #1 is used. However, if the UE determines that encoder #1 cannot achieve target performance, encoder #2 may be used. Alternatively, the UE may perform a conventional PMI calculation using input information and transmit information indicating the PMI (CSI feedback) from the antenna.

[0031] (New CSI-Related Quantity) The new CSI-related quantity may include phase / amplitude information of the measured RS. The UE may report the calculated phase / amplitude at a certain time, or may report the calculated phase / amplitude of the latest RS. Note that the phase / amplitude information may indicate a complex value representing the phase and amplitude.

[0032] The new CSI-related quantity may include information on the time to measure RS for CSI calculation. This time may correspond to the time / timing at which the UE refers to the RS for CSI calculation, and may indicate, for example, the time difference from the transmission timing of the beam report. This information may indicate the RS resource of the RS to be measured instead of / in addition to the time.

[0033] The new CSI-related quantity may include spatial information (which may also be referred to as spatial information) of the measured RS. The spatial information may include spatial relationship information, TCI status, etc., or may include information other than these.

[0034] The new CSI-related quantity may include location information of the UE. The location information of the UE may include at least one of information (e.g., latitude, longitude, and altitude) obtained using a positioning system such as the Global Positioning System (GPS), information about a base station neighboring (or serving) the UE (e.g., a base station / cell identifier (ID), a BS-UE distance, a direction of the UE as seen from the BS, coordinates of the UE or BS as seen from the BS or UE (e.g., X / Y / Z coordinates), etc.), a specific address of the UE (e.g., an Internet Protocol (IP) address), etc. The location information of the UE is not limited to information based on the position of the BS, and may be information based on a specific point.

[0035] (Predicted CSI Report) The predicted CSI report may include, as CSI information, information on existing CSI-related quantities (such as L1-RSRP / SINR, CQI, PMI, etc.), the above-mentioned new CSI-related quantities, etc., and may include, as predicted CSI information, information on predicted values ​​of the existing CSI-related quantities, etc.

[0036] A predicted CSI report may include information for one or multiple time instants (e.g., multiple predicted CSI times) in one CSI report. The UE may report only predicted CSI information or may report CSI-related information predicted with RS-based measurements (no prediction).

[0037] The UE may determine the number of time instants in one CSI report based on configured parameters, UE capabilities, or specific rules. The UE may determine the number of time instants and whether to include measurements in one CSI report based on physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels, or a combination thereof, or based on UE capabilities.

[0038] The UE may report in the CSI report whether the CSI-related information is predicted information or simply measured information. If the time offset is zero, the reported CSI may be an actual measurement value rather than a predicted value. The UE may be configured to report predicted CSI or normal CSI.

[0039] 3 is a diagram showing an example of a predicted CSI report. In this example, a base station (BS) transmits two RSs (CSI-RS #1, #2), and a UE uses AI to predict beam quality at future time t=1 based on beam measurements (e.g., L1-RSRP measurements) at time t=0. Note that the transmitted RS is not limited to CSI-RS, and may be SSB or the like. Hereinafter, the terms predicted CSI report, extended beam report with prediction, extended beam report, and beam report may be interchangeable.

[0040] The UE reports the predicted CSI measurements as a predicted CSI report, where the UE may report the current (actual, at t=0) CSI measurements along with the predicted (at t=1) CSI measurements.

[0041] (CSI Calculation Using AI / ML Inference) The UE may calculate the CSI using AI / ML inference. For example, the UE may apply a predicted RSRP / SINR report and an auto-encoder for CSI feedback. When the UE applies AI / ML inference, the calculation may be performed by the CPU / GPU. When the UE applies AI / ML inference to the CSI calculation, the CSI processing criteria may be extended to take into account the processing capabilities of the AI / ML.

[0042] In the current Rel. 16, the concurrent calculation of CSI is limited by the CPU capacity. If the concurrent CPU processing capacity is greater than the UE's capacity, the UE does not need to prioritize updating some CSI reports.

[0043] Specifically, in the current Rel. 16, the UE supports the number of supported simultaneous CSI calculations, N CPU is denoted by the parameters simultaneousCSI-ReportsPerCC within a component carrier and simultaneousCSI-ReportsAllCC across all component carriers. CPU Supporting simultaneous CSI calculations requires N CPU In a given OFDM symbol, if L CPUs are dedicated to the calculation of CSI reports, the UE can process N CPU -L unoccupied CPUs. CPU In the same OFDM symbol where L CPUs are not occupied, if N CSI reports start occupying their respective CPUs, each CSI report (n=0,...,N-1) CPU (n) , the UE does not need to update the N M requested CSI reports with the lowest priority (Σ n=0 M-1 O CPU (n) ≦N CPU Let M be the maximum value for which -L holds (0≦M≦N).

[0044] (CPU Occupancy) CPU Occupancy O CPU The following values ​​can be set for reportQuantity: If reportQuantity is set to none (TRS is applied), O CPU = 0 is set. If reportQuantity is set to 'cri-RSRP', 'ssb-Index-RSRP', 'cri-SINR', 'ssb-Index-SINR' or 'none' (TRS is not applied), O CPU =1 is set.

[0045] In addition, in the following cases (1) to (4), O CPU =N CPU (1) At least one of AP CSI-RS and TB without HARQ-ACK is configured. (2) CPU with L=0 is occupied. (3) CSI is a single CSI in wideband, corresponding to up to four CSI-RS ports without CRI reporting. (4) codebookType is set to typeI-SinglePanel or reportQuantity is set to cri-RI-CQI.

[0046] In all other cases, O CPU =K S It becomes. K S is the number of CSI-RS resources in the CSI-RS resource set for channel measurement. n=0 M-1 O CPU (n) ≦N CPU If -L is satisfied, the CSI report may be updated.

[0047] (CPU Occupancy Time) In the case of a CSI report corresponding to a CSI-ReportConfig in which the upper layer parameter reportQuantity is not set to none, the CPU is occupied for a predetermined number of OFDM symbols, as shown in the following (1) to (3).

[0048] (1) A periodic or semi-persistent CSI report (except for the first semi-persistent CSI report on the PUSCH after the PDCCH that triggers the report) occupies CPU(s) for each CSI-RS / CSI-IM / SSB resource for channel measurement or interference measurement, and from the first symbol of the latest CSI-RS / CSI-IM / SSB opportunity that is not later than the corresponding CSI reference resource, to the last symbol of the configured PUSCH / PUCCH that transmits the CSI report (e.g., FIG. 4A).

[0049] (2) Aperiodic CSI reporting occupies the CPU from the first symbol after the PDCCH (including DCI) that triggers the CSI report to the last symbol of the scheduled PUSH that carries the CSI report (e.g., Figure 4B).

[0050] (3) An initial semi-persistent CSI report on PUSCH after a PDCCH trigger occupies the CPU from the first symbol after the PDCCH to the last symbol of the scheduled PUSCH carrying the report.

[0051] In the case of a CSI report corresponding to a CSI-ReportConfig in which the upper layer parameter reportQuantity is set to none and a CSI-RS-ResourceSet in which the upper layer parameter trs-Info is not set, the CPU is occupied for a predetermined number of OFDM symbols, as shown in the following (1) and (2).

[0052] (1) A semi-persistent CSI report (except for the first semi-persistent CSI report on the PUSCH after the PDCCH that triggers the report) is sent from the first symbol of the earliest of each transmission opportunity of the periodic or semi-persistent CSI-RS / SSB resource for channel measurement for L1-RSRP calculation to Z symbols after the last symbol of the latest of the CSI-RS / SSB resource for channel measurement for L1-RSRP calculation. ３ ' symbol (eg, FIG. 5A).

[0053] (2) Aperiodic CSI reporting is performed from the first symbol after the PDCCH triggers the CSI report to the Z of the first symbol after the PDCCH that triggered the CSI report. ３ symbol and the last symbol of each CSI-RS / SSB resource for channel measurement for L1-RSRP calculation ３ ' symbol until the last symbol between them (for example, FIG. 5B).

[0054] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings. Wireless communication methods according to the embodiments may be applied independently or in combination.

[0055] In the present disclosure, "A / B" and "at least one of A and B" may be interpreted interchangeably. Also, in the present disclosure, "A / B / C" may mean "at least one of A, B, and C."

[0056] In the present disclosure, terms such as activate, deactivate, indicate (or indicate), select, configure, update, and determine may be read interchangeably. In the present disclosure, terms such as support, control, controllable, operate, and operate may be read interchangeably.

[0057] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, fields, information elements (IEs), settings, etc. may be interchangeable. In the present disclosure, Medium Access Control (MAC) control elements (CEs), update commands, activation / deactivation commands, etc. may be interchangeable.

[0058] In the present disclosure, higher layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

[0059] In the present disclosure, MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. Broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

[0060] In the present disclosure, physical layer signaling may be, for example, Downlink Control Information (DCI), Uplink Control Information (UCI), and the like.

[0061] In the present disclosure, the terms index, identifier (ID), indicator, resource ID, etc. may be interchangeable. In the present disclosure, the terms sequence, list, set, group, cluster, subset, etc. may be interchangeable.

[0062] In the present disclosure, CSI-RS, non-zero power (NZP) CSI-RS, zero power (ZP) CSI-RS, and CSI interference measurement (CSI-IM) may be interchangeable. Furthermore, CSI-RS may include other reference signals.

[0063] In this disclosure, a measured / reported RS may refer to an RS that is measured / reported for a CSI report.

[0064] In the present disclosure, timing, time, duration, slot, subslot, symbol, subframe, etc. may be read interchangeably.

[0065] In the present disclosure, the terms direction, axis, dimension, domain, polarization, polarization component, etc. may be interpreted interchangeably.

[0066] In the present disclosure, the RS may be, for example, a CSI-RS, an SS / PBCH block (SS block (SSB)), etc. Also, the RS index may be a CSI-RS Resource Indicator (CRI), an SS / PBCH Block Indicator (SSBRI), etc.

[0067] In the present disclosure, estimation, prediction, and inference may be used interchangeably. Also, in the present disclosure, estimate, predict, and infer may be used interchangeably.

[0068] In the present disclosure, the terms autoencoder, encoder, decoder, etc. may be replaced with at least one of a model, an ML model, a neural network model, an AI model, an AI algorithm, etc. Furthermore, the term autoencoder may be replaced with any autoencoder, such as a stacked autoencoder or a convolutional autoencoder. The encoder / decoder of the present disclosure may employ a model such as a Residual Network (ResNet), a DenseNet, or a RefineNet.

[0069] In addition, in this disclosure, the terms encoder, encoding, encoding, modification / change / control by an encoder, etc. may be interchangeable. In addition, in this disclosure, the terms decoder, decoding, decoding, modification / change / control by a decoder, etc. may be interchangeable.

[0070] In the present disclosure, UCI, CSI report, CSI feedback, feedback information, feedback bit, etc. may be interchangeable. Also, in the present disclosure, bit, bit string, bit sequence, sequence, value, information, value obtained from a bit, information obtained from a bit, etc. may be interchangeable.

[0071] In the present disclosure, a layer (for an encoder) may be interchangeably read as a layer (such as an input layer or an intermediate layer) used in an AI model. The layer in the present disclosure may correspond to at least one of an input layer, an intermediate layer, an output layer, a batch normalization layer, a convolutional layer, a dropout layer, a fully connected layer, etc.

[0072] In the present disclosure, a layer regarding a precoding matrix may be interchangeably read as a multi-input multi-output (MIMO) layer, a stream, and the like.

[0073] The application of TRS and the setting of TRS information (trs-Info) may be interchangeable. The terms AI, ML, AI / ML model, ML model, AI model, model, model inference, etc. may be interchangeable.

[0074] In the present disclosure, CPU / GPU may refer to a central processing unit / graphics processing unit. However, CPU may refer to a CSI processing unit, and CPU / GPU may be replaced with a CSI processing unit (CPU). The number of simultaneous model inference calculations and the number of CPUs for simultaneous model inference calculations may be interchangeable. The CSI reference resource may be CSI-RS / CSI-IM / SSB. CSI may be transmitted on a PUSCH or a PUCCH.

[0075] (Wireless Communication Method) First Embodiment [Aspect 1-1] A UE may transmit (report) the number of supported simultaneous model inference calculations (number of CPUs / GPUs) as capability information of the terminal (UE capability), and may perform CSI calculation using model inference based on the number of simultaneous model inference calculations. Either of the following options 1 and 2 may be applied as the granularity of the UE capability.

[0076] <<Option 1>> The UE may report the UE capabilities for each component carrier.

[0077] Option 2: The UE may report its capabilities across all component carriers.

[0078] Regarding the relationship between the reporting of the number of supported concurrent model inference calculations and the CSI processing criteria, any of the following options A to C may be applied. Note that in this disclosure, the "number of supported concurrent model inference calculations" may be interpreted as the "number of model inference processing units used for processing model inference."

[0079] <<Option A>> The UE determines the number of model inference calculations that can be processed based on the number of unoccupied CSI processing units, which is determined from the reported number of CSI processing units and the number of occupied CSI processing units. The UE reports the number of simultaneous CSI calculations supported in Rel. 17, and this number may correspond to the model inference capability. Note that in the present disclosure, the "number of CSI calculations" may be read as the "number of CSI processing units used for CSI processing."

[0080] <<Option B>> The UE determines the number of model inference calculations it can process based on the number of unoccupied model inference processing units, which is determined from the reported number of model inference processing units and the number of occupied model inference processing units. (The number of model inference calculations may be treated separately from the number of CSI processing units.) The UE may report the number of supported simultaneous model inference calculations separately from the simultaneous CSI calculations.

[0081] <<Option C>> The UE determines (calculates) the number of model inference calculations that can be processed from the number of unoccupied CSI processing units and the number of unoccupied model inference processing units. In this case, some of the model inference calculations may be included in the CSI calculation. The UE may report the number of supported simultaneous calculations for model inference only, and the following may hold: (Total number of model inference processing units for supported simultaneous model inference calculations) = (Number of supported simultaneous model inference processing units for model inference only) + (Number of unoccupied CSI processing units available for simultaneous CSI calculations). The UE may apply Option C only if the CPU is capable of AI / ML model inference.

[0082] FIG. 6A shows the number of CPUs (N) for the calculation of the CSI report in Option A. ＣＰＵ 6A is a diagram showing an example of a CSI report calculation. L is the number of CPUs for CSI report calculation or the number of CSI processing CPU units. L' is the number of CPUs for model inference calculation or the number of model inference processing CPU units. R is the remaining number (number of CPUs) available for model inference calculation. The same applies to L and R in other figures. In FIG. 6A, L and L' are N ＣＰＵ is included in.

[0083] FIG. 6B shows the number of CPUs (N) for the calculation of the CSI report in Option B. ＣＰＵ 6B shows an example of the number of concurrent model inferences. L' is the number of CPUs / GPUs for model inference calculations. In FIG. 6B, L is the number of concurrent model inferences. ＣＰＵ is included in L', but L' is N ＣＰＵ is not included.

[0084] FIG. 6C shows the number of CPUs (N) for the calculation of the CSI report in Option C.ＣＰＵ 6C shows an example of the number of concurrent model inferences. L' is the number of CPUs / GPUs for model inference calculations. L" is the number of CPUs for model inference calculations included in CSI calculations. In other words, L" is a part of L'. In FIG. 6C, L" is the number of concurrent model inferences. ＣＰＵ L'-L" is included in N ＣＰＵ is not included in the , and corresponds to the number of simultaneous model inference calculations.

[0085] [Aspect 1-2] The UE may determine the number of CPUs (L) to be occupied (used) for CSI calculation (CSI calculation without model inference) and the number of CPUs (L′) to be occupied (used) for model inference calculation using at least one of the following options 1 to 3.

[0086] Option 1: The UE may determine L and L' based on information related to the applied AI / ML model, such as at least one of the following: capabilities of the AI / ML model, parameters of the AI / ML model, and FLOPs (Floating-point Operations Per Second) of the AI / ML model.

[0087] Option 2: The UE may determine L and L′ based on inputs provided to the applied AI / ML model, such as the number of CSI-RS resources in the CSI-RS resource set for channel measurement.

[0088] Option 3: The UE may determine L and L′ based on the configuration of the associated CSI report or CSI-RS, which may be, for example, the configuration of the higher layer parameter reportQuantity.

[0089] [Aspect 1-3] The UE may determine whether to apply model inference for a CSI report based on the remaining number (number of CPUs / GPUs) available for model inference calculation. For example, if the remaining number (number of CPUs) available for model inference calculation (e.g., R in FIGS. 6A to 6C ) cannot accommodate the CSI report, the UE may not be required to apply AI / ML model inference with the lowest priority rule for the CSI report.

[0090] For example, the UE may decide that the N'-M' lowest priority requested CSI reports are not requested to be updated (Σ n=0 M'-1 O CPUGPU for AI (n) Let 0≦M′≦N′ be the maximum value for which ≦N′CPUGPU for AI-L′ holds. N′ (N′CPUGPU for AI) is the number of CSI reports required for model inference. CPUGPU for AI (n) is the CPU / GPU occupancy for model inference calculation.

[0091] [Aspect 1-4] The UE does not need to expect (assume) that an aperiodic CSI trigger state (CSI report) that requires a value (number of calculations / number of CPUs) related to the inference calculation of the AI / ML model that is larger than the value reported in the UE capabilities will be set.

[0092] [Aspect 1-5] The UE may assume that the CPU / GPU for model inference occupies the OFDM symbols (number of symbols) shown in Option 1 or Option 2 below. That is, the UE assumes the symbols (number of symbols) to be occupied by the CPU / GPU for model inference based on the RS resource symbols used for model input (Option 1) or the PDCCH symbols that trigger a CSI report for which model inference is required (Option 2). Fig. 7A is a diagram showing CPU / GPU occupied symbols for Option 1 of Aspect 1-5. Fig. 7B is a diagram showing CPU / GPU occupied symbols for Option 2 of Aspect 1-5.

[0093] Option 1: The earliest first symbol of each CSI-RS / CSI-IM / SSB resource for channel measurement or interference measurement used as input for the AI / ML model, but not later than the corresponding CSI reference resource (n in FIG. 7A). CSI_ref 7A) from the symbol containing the respective most recent CSI-RS / CSI-IM / SSB opportunity to the symbol up to the last configured PUSCH / PUCCH symbol carrying a report (the symbol indicated by "CPU / GPU Occupancy" in FIG. 7A).

[0094] This optional CSI reporting may be, for example, a periodic or semi-persistent CSI reporting (except for the first semi-persistent CSI reporting on the PUSCH after the PDCCH that triggers the reporting).

[0095] Option 2: From the first symbol after the PDCCH (DCI) that triggers the CSI report for which AI / ML model inference is required to the last symbol of the scheduled PUSCH that carries the CSI report. The CSI report for this option may be, for example, an aperiodic CSI report / first semi-persistent CSI report in the PUSCH after the PDCCH that triggers the CSI report (the symbol indicated by "CPU / GPU Occupancy" in Fig. 7B).

[0096] <CSI Reporting> An example of the CSI calculation time (processing time for aperiodic CSI reporting) will be described. The UE reports CSI to the base station (gNB) when the following conditions (1) and (2) are met: (1) The time difference #1 between the last symbol of the PDCCH that triggers CSI and the first symbol of the PUSCH is Z symbols or more; (2) When aperiodic CSI-RS is used for reporting, the time difference #2 between the last symbol of the latest aperiodic CSI-RS and the first symbol of the PUSCH is Z' symbols or more.

[0097] 8 is a diagram showing an example of conditions for reporting CSI to a base station. The time gaps (Timi gaps) #1 and #2 in (1) and (2) above are shown in FIG. 8.

[0098] (Z, Z') may depend on the CSI calculation load. In the case of wideband CSI with up to four CSI-RS ports in a single resource without CRI report, and CodebookType is 'typeI-SinglePanel' or reportQuantity is 'cri-RI-CQI' (Condition A), (Z, Z') may be defined as follows. Note that Fig. 9A and Fig. 9B are diagrams showing examples of CSI calculation delay requests. (Z, Z') = (Z １ , Z １') (see FIG. 9A) (Condition B: single CSI, CSI only / CSI+Transport Block (TB) / CSI+HARQ, occupied CPU=0) (Z, Z')=(Z １ , Z １ ') (see Figure 9B) (if condition B is not met)

[0099] If condition A is not satisfied, (Z, Z') may be defined as follows: (Z, Z')=(Z ２ , Z ２ ') (see Figure 9B)

[0100] If the CSI report is an L1-RSRP report, (Z, Z') may be defined as follows: (Z, Z')=(Z ３ , Z ３ ') (see Figure 9B)

[0101] Note that Xμ in Figure 9B corresponds to the beamReportTiming of the UE capabilities. ｌ corresponds to the UE capability beamSwitchTiming. μ is min(μ PDCCH ,μ CSI-RS ,μ UL )

[0102] Beam Management Reporting / Update Decision The UE may provide a valid CSI report (beam report) and / or update the CSI using PUSCH if the following conditions are met: The time gap (Z) between the last symbol of the PDCCH triggering the beam report and the first uplink symbol (in PUSCH) carrying the corresponding CSI report, including the effect of timing advance, is ｒｅｆ ) is greater than a threshold Z. The time gap (Z') between the last symbol of the RS (e.g., CSI-RS / SSB) resource for beam management and the first uplink symbol (in PUSCH) carrying the corresponding CSI report including the effect of timing advance ｒｅｆ ) is greater than the threshold Z′.

[0103] FIG. 10 shows the time gap (Z ｒｅｆ , Z' ｒｅｆ ) is a diagram showing an example of the above Zｒｅｆ , Z' ｒｅｆ is expressed as shown in FIG.

[0104] The UE may determine at least one of the thresholds Z and Z′ based on values ​​from the CSI calculation delay requirement tables (3GPP TS 38.214 Tables 5.4-1 and 5.4-2) in the existing Rel. 15 / 16 NR.

[0105] The UE may determine at least one of the thresholds Z and Z′ based on a value from the CSI calculation delay request table in the existing Rel. 15 / 16 NR plus / multiplying a specific value (offset value). This specific value may correspond to additional calculation time for prediction.

[0106] If the UE has prediction capability, it may report information about the additional calculation time as UE capability information. The capability regarding this additional calculation time may be selected from several candidate calculation times and reported. If the capability regarding the additional calculation time is not reported, the UE may assume a default calculation time.

[0107] The UE may determine that at least one of the thresholds Z and Z′ is a new value for beam reporting. The new value may be determined based on a specific rule, physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), a specific signal / channel, or a combination thereof, or may be determined based on UE capabilities.

[0108] This allows, for example, the UE to appropriately determine whether or not to provide a valid beam report.

[0109] <Second embodiment> [Aspect 2-1] When the CSI request field of DCI triggers a CSI report of PUSCH, the UE selects one of the following options 1 to 3 as the time gap (Z) until CSI report transmission. ｒｅｆ , Z' ｒｅｆ (Z' ｒｅｆ(n))), where n is the number of the CSI report. This aspect may be combined with part of the process described above in "Beam Management Report / Update Determination."

[0110] The UE may use the calculation time for model inference to determine the CSI report transmission timing and transmit the CSI report at the determined transmission timing (option 2 or 3).

[0111] <<Option 1>> Values ​​from an existing CSI calculation delay requirement table (for example, table 5.4.-1 in 3GPP Rel. 17 38.214).

[0112] <<Option 2>> The total value obtained by adding some values ​​to the values ​​in the existing CSI calculation delay request table. The UE may request an addition of calculation time for model inference to the existing CSI calculation time (CSI calculation time without model inference). In other words, the UE may determine the timing of transmitting a CSI report based on the time obtained by adding the calculation time for model inference to the existing CSI calculation time.

[0113] If the UE has the capability to apply model inference, it may report additional computation time as a UE capability. The UE may select this capability from among the computation time candidates specified in the specification. If the UE does not report this capability, it may assume the default computation time specified in the specification.

[0114] FIG. 11 is a diagram illustrating an example of a CSI calculation delay time in Option 2 of Aspect 2-1. The PUSCH in FIG. 11 is assumed to be a PUSCH for transmitting a CSI report. As shown in FIG. 11, the existing Z ｒｅｆ , Z' ｒｅｆ The time obtained by adding the additional calculation time (calculation time for model inference) to Z becomes the new CSI calculation delay time. ｒｅｆ , Z' ｒｅｆ The time added to the additional calculation time is the new Z ｒｅｆ , Z' ｒｅｆ Z in FIG. ｒｅｆ , Z' ｒｅｆ may be a value defined in the Rel. 17 specification, for example.

[0115] <<Option 3>> A new value for the CSI calculation delay requirement using AI / ML model inference. For example, the UE may report a capability for CSI calculation using AI / ML model inference. The UE may report this capability for each AI / ML model or for each function of the AI / ML model.

[0116] In options 2 and 3, the UE ｒｅｆ , Z' ｒｅｆ (n) may be determined according to an AI / ML model for applying model inference.

[0117] [Aspect 2-2] When the CSI request field in DCI triggers a CSI report on PUSCH, the UE may provide a valid CSI report for the nth triggered report that requires model inference. The result of aspect 2-2 may be the same as option 2 in aspect 2-1, except that Z'ref(n) may be different from option 2 in aspect 2-1. Z'ref(n) itself may be the same whether or not AI / ML model inference is applied.

[0118] For example, the UE may decide to transmit the CSI report in an UL symbol if the first UL symbol for transmitting the CSI report is not earlier than the transmission timing determined in aspect 2-1 (e.g., (1) and (2) below).

[0119] (1) The first UL symbol for transmitting the corresponding CSI report including the effect of timing advance is symbol Z ｒｅｆ +Z ｒｅｆ_ＡＩ If it does not start earlier than (additional time (computation time for model inference)), the UE may transmit the CSI report in the UL symbol (PUSCH).

[0120] (2) The first UL symbol for transmitting the nth CSI report including the effect of timing advance is symbol Z′ ｒｅｆ (n)+Z′ ｒｅｆ_ＡＩIf it does not start earlier than (additional time (computation time for model inference)), the UE may transmit the CSI report in the UL symbol (PUSCH).

[0121] (3) If neither (1) nor (2) applies, and if HARQ-ACK or TB is not multiplexed on the PUSCH, the UE may ignore the scheduling DCI (do not need to transmit a CSI report). Then, the number of triggered reports is Z' ｒｅｆ (n)+Z′ ｒｅｆ_ＡＩ There may be one for each.

[0122] The UE is Z according to option 2 of aspect 2-1 or aspect 2-2. ｒｅｆ , Z' ｒｅｆ When determining (n), the additional time for model inference may be determined as in the following options 2-1 or 2-2.

[0123] <<Option 2-1>> The additional time of Zref and Z'ref(n) in aspect 2-1 and Z in aspect 2-2 ｒｅｆ_ＡＩ , Z' ｒｅｆ_ＡＩ If (n) is the same, the UE may report the UE capability for the additional time for each AI / ML model. The additional time may be calculated according to the information related to the AI / ML model (FLOPs) and the UE capability.

[0124] <<Option 2-2>> The additional time of Zref and Z'ref(n) in aspect 2-1 and Z in aspect 2-2 ｒｅｆ_ＡＩ , Z' ｒｅｆ_ＡＩ If (n) is different, the UE may report the UE capability for the additional time for each AI / ML model. The additional time may be calculated according to the information related to the AI / ML model (FLOPs) and the UE capability.

[0125] <CSI Reference Resource> The CSI reference resource in Rel. 17 will be described. The CSI reference resource of the serving cell is defined as follows. The reference resource is shown in Figure 12. In the frequency domain, the band to which the derived CSI relates. In the time domain, a single DL slot n-n ＣＳＩ_ｒｅｆAssume that the CSI report is transmitted in UL slot n'. The relationship between n and n' is as shown in Figure 12. That is, n is the DL slot corresponding to the UL slot n' in which the CSI report is transmitted.

[0126] For periodic CSI and semi-persistent CSI reporting, n ＣＳＩ_ｒｅｆ is the smallest value corresponding to a valid DL slot (4.2 for a single CSI-RS / SSB DL slot). μＤＬ In the case of multiple CSI-RS / SSB DL slots, μＤＬ That's all.

[0127] In the case of aperiodic CSI reporting, n ＣＳＩ_ｒｅｆ is the minimum value corresponding to a valid DL slot ([Z' / N ｓｙｍｂ ｓｌｏｔ ]) Since the UE is instructed by the DCI to report CSI in the same slot as the CSI request, n ＣＳＩ_ｒｅｆ is in the same slot as the CSI request.

[0128] <Third Embodiment> For CSI reports that require AI / ML model inference, the UE may determine the time domain of the CSI reference resource using one of the following options: Note that in the current specification, a valid DL slot consists of at least one higher layer configured DL or flexible symbol, and the valid DL slot is not within the measurement gap configured for the UE.

[0129] For example, the UE may determine the time domain of the CSI reference resource based on at least one of relevant information of the AI / ML model, parameters of the UE capabilities (terminal capabilities), and parameters set / indicated by physical layer signaling / higher layer signaling.

[0130] [Option 1] As in Rel. 17 above, the time domain of the CSI reference resource is n-n ＣＳＩ_ｒｅｆ It may be a single DL slot in

[0131] <<Options 1-1 and 1-2>> ＣＳＩ_ｒｅｆmay be the smallest value greater than X that corresponds to a valid DL slot.

[0132] X is 4.2 μＤＬ or 5.2 μＤＬ or may be a different value. X may depend on the DL numerology (subcarrier spacing).

[0133] <<Option 1-1>> X may be determined based on at least one of the relevant information of the AI / ML model (such as the capabilities / FLOPs / total parameters of the applied AI / ML model), parameters of the UE capabilities, and parameters set / indicated by physical layer signaling / higher layer signaling.

[0134] <<Option 1-2>> X may be specified in the specifications, regardless of the AI / ML model.

[0135] Options 1-1 and 1-2 may be applied to periodic / semi-persistent CSI reporting using AI / ML model inference.

[0136] Options 1-3 and 1-4 ＣＳＩ_ｒｅｆ corresponds to a valid DL slot, [Z'+Y / N ｓｙｍｂ ｓｌｏｔ ] may be a minimum value greater than

[0137] <<Options 1-3>> The above Y may be determined based on at least one of the following: relevant information of the AI / ML model (such as function / FLOP / total parameters of the applied AI / ML model), parameters of UE capabilities, and parameters set / indicated by physical layer signaling / higher layer signaling.

[0138] <<Option 1-4>> Y may be specified in the specification regardless of whether the AI / ML model is applied. Z' may be determined in the same manner as in the second embodiment. In the case of aperiodic CSI reporting with AI / ML model inference, Options 1-3 and 1-4 may be applied.

[0139] [Option 2] The time domain of the CSI reference resource is n-n ＣＳＩ_ｒｅｆ- may be a single DL slot in nCSI_ref_AI, where nCSI_ref_AI is n in Option 1 ＣＳＩ_ｒｅｆ may be determined similarly.

[0140] <Supplementary Note> At least one of the above-described embodiments may be applied only to UEs that have reported or support a specific UE capability.

[0141] The particular UE capability may indicate support for particular processing / operations / control / information for at least one of the above embodiments / aspects / options.

[0142] Furthermore, the above-mentioned specific UE capability may be a capability that is applied across all frequencies (commonly regardless of frequency), or may be a capability for each frequency (e.g., cell, band, BWP), each frequency range (e.g., Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), each subcarrier spacing (SubCarrier Spacing (SCS)), each band combination (BC), each feature set (FS), or each feature set per component-carrier (FSPC).

[0143] The specific UE capability may be a capability for each cell, a capability that is commonly applied across all duplexing modes (regardless of the duplexing mode), or a capability for each duplexing mode (e.g., Time Division Duplex (TDD) or Frequency Division Duplex (FDD)).

[0144] Furthermore, at least one of the above-described embodiments / aspects / options may be applied when the UE is configured with related specific information by higher layer signaling.

[0145] If the UE does not support at least one of the specific UE capabilities or is not configured with the specific information, the UE may apply, for example, Rel. 15 / 16 behavior.

[0146] (Supplementary Note A) The following inventions are added with respect to one embodiment of the present disclosure. [Supplementary Note 1] A terminal having: a transmitting unit that transmits the number of supported simultaneous model inference calculations as terminal capability information; and a control unit that performs channel information (CSI) calculation using model inference based on the number of simultaneous model inference calculations. [Supplementary Note 2] The terminal described in Supplementary Note 1, in which the control unit determines the number of Central Processing Units (CPUs) occupied for the CSI calculation without model inference and the number of CPUs occupied for the model inference calculation based on at least one of information related to an applied model, an input provided to the applied model, and a setting of an associated CSI report or CSI reference signal (CSI-RS). [Supplementary Note 3] The terminal described in Supplementary Note 1 or Supplementary Note 2, in which the control unit determines the application of model inference for a CSI report based on the number of remaining CPUs or Graphics Processing Units (GPUs) available for model inference calculation. [Supplementary Note 4] The terminal according to any one of Supplementary Note 1 to Supplementary Note 3, wherein the control unit assumes symbols to be occupied by a CPU or GPU for model inference based on symbols of RS resources used for model input or symbols of a Physical Downlink Control Channel (PDCCH) that trigger a CSI report for which model inference is required.

[0147] (Supplementary Note B) The following inventions are further appended to one embodiment of the present disclosure. [Supplementary Note 1] A terminal comprising: a controller that determines a channel state information (CSI) report transmission timing using a calculation time for model inference; and a transmitter that transmits the CSI report at the transmission timing. [Supplementary Note 2] The terminal according to Supplementary Note 1, wherein the controller determines the transmission timing of the CSI report based on a time obtained by adding the calculation time for model inference to a CSI calculation time. [Supplementary Note 3] The terminal according to Supplementary Note 1 or Supplementary Note 2, wherein the controller determines to transmit the CSI report in the UL symbol if the first UL symbol for transmitting the CSI report is not earlier than the determined transmission timing. [Supplementary Note 4] The terminal according to any of Supplements 1 to 3, wherein the controller determines a time domain of a CSI reference resource based on at least one of model-related information, a terminal capability parameter, and a parameter set or indicated by physical layer signaling or higher layer signaling.

[0148] (Wireless Communication System) The configuration of a wireless communication system according to an embodiment of the present disclosure will be described below. In this wireless communication system, communication is performed using any one of the wireless communication methods according to the above embodiments of the present disclosure or a combination thereof.

[0149] 13 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE) or 5th generation mobile communication system New Radio (5G NR) specified by the Third Generation Partnership Project (3GPP).

[0150] The wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), etc.

[0151] In EN-DC, the LTE (E-UTRA) base station (eNB) is the master node (Master Node (MN)), and the NR base station (gNB) is the secondary node (Secondary Node (SN)). In NE-DC, the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.

[0152] The wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity in which both the MN and SN are NR base stations (gNBs) (NR-NR Dual Connectivity (NN-DC))).

[0153] The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) that are located within the macrocell C1 and form small cells C2 that are smaller than the macrocell C1. A user terminal 20 may be located within at least one of the cells. The locations and numbers of the cells and user terminals 20 are not limited to the embodiment shown in the figure. Hereinafter, when there is no need to distinguish between the base stations 11 and 12, they will be collectively referred to as base station 10.

[0154] The user terminal 20 may be connected to at least one of the multiple base stations 10. The user terminal 20 may utilize at least one of carrier aggregation (CA) using multiple component carriers (CCs) and dual connectivity (DC).

[0155] Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may be included in FR1, and the small cell C2 may be included in FR2. For example, FR1 may be a frequency band of 6 GHz or less (sub-6 GHz), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a higher frequency band than FR2.

[0156] Furthermore, the user terminal 20 may perform communication using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.

[0157] The multiple base stations 10 may be connected by wire (e.g., optical fiber compliant with the Common Public Radio Interface (CPRI), an X2 interface, etc.) or wirelessly (e.g., NR communication). For example, when NR communication is used as a backhaul between the base stations 11 and 12, the base station 11 corresponding to the upper station may be called an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) may be called an IAB node.

[0158] The base station 10 may be connected to the core network 30 directly or via another base station 10. The core network 30 may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), and the like.

[0159] The user terminal 20 may be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.

[0160] An Orthogonal Frequency Division Multiplexing (OFDM)-based radio access scheme may be used in the wireless communication system 1. For example, Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), or the like may be used in at least one of the downlink (DL) and uplink (UL).

[0161] The radio access scheme may also be called a waveform. Note that in the wireless communication system 1, other radio access schemes (e.g., other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the UL and DL radio access schemes.

[0162] In the wireless communication system 1, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20, a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc. may be used as the downlink channel.

[0163] Furthermore, in the wireless communication system 1, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20, an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), or the like may be used as an uplink channel.

[0164] The PDSCH transmits user data, higher layer control information, a System Information Block (SIB), etc. The PUSCH may transmit user data, higher layer control information, etc. Furthermore, the PBCH may transmit a Master Information Block (MIB).

[0165] Lower layer control information may be transmitted by the PDCCH. The lower layer control information may include, for example, Downlink Control Information (DCI) including scheduling information for at least one of the PDSCH and the PUSCH.

[0166] Note that the DCI for scheduling the PDSCH may be referred to as a DL assignment, a DL DCI, etc., and the DCI for scheduling the PUSCH may be referred to as a UL grant, a UL DCI, etc. Note that the PDSCH may be replaced with DL data, and the PUSCH may be replaced with UL data.

[0167] A control resource set (CORESET) and a search space may be used to detect the PDCCH. The CORESET corresponds to resources for searching for DCI. The search space corresponds to a search region and a search method for PDCCH candidates. One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a certain search space based on the search space configuration.

[0168] One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces may be referred to as a search space set. Note that the terms "search space," "search space set," "search space configuration," "search space set configuration," "CORESET," "CORESET configuration," and the like in the present disclosure may be read interchangeably.

[0169] The PUCCH may transmit uplink control information (UCI) including at least one of channel state information (CSI), delivery confirmation information (which may be called, for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR). The PRACH may transmit a random access preamble for establishing a connection with a cell.

[0170] In the present disclosure, downlink, uplink, etc. may be expressed without adding "link." Also, various channels may be expressed without adding "Physical" to the beginning.

[0171] In the wireless communication system 1, a synchronization signal (SS), a downlink reference signal (DL-RS), etc. may be transmitted. In the wireless communication system 1, as the DL-RS, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), etc. may be transmitted.

[0172] The synchronization signal may be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). A signal block including an SS (PSS, SSS) and a PBCH (and a DMRS for the PBCH) may be referred to as an SS / PBCH block, an SS Block (SSB), or the like. Note that the SS, SSB, and the like may also be referred to as a reference signal.

[0173] Furthermore, in the wireless communication system 1, a sounding reference signal (SRS), a demodulation reference signal (DMRS), or the like may be transmitted as an uplink reference signal (UL-RS). Note that the DMRS may also be called a user equipment-specific reference signal (UE-specific reference signal).

[0174] 14 is a diagram showing an example of the configuration of a base station according to an embodiment. The base station 10 includes a control unit 110, a transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140. Note that the base station may include one or more of each of the control unit 110, the transceiver unit 120, the transceiver antenna 130, and the transmission line interface 140.

[0175] In this example, the functional blocks of the characteristic parts of the present embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0176] The control unit 110 performs overall control of the base station 10. The control unit 110 can be configured from a controller, a control circuit, and the like that are explained based on common understanding in the technical field to which the present disclosure relates.

[0177] The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may control transmission and reception using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140, measurement, etc. The control unit 110 may generate data, control information, sequences, etc. to be transmitted as signals, and transfer them to the transceiver unit 120. The control unit 110 may perform call processing (setting up, releasing, etc.) of communication channels, status management of the base station 10, management of radio resources, etc.

[0178] The transceiver unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transceiver unit 120 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0179] The transmitting / receiving unit 120 may be configured as an integrated transmitting / receiving unit, or may be configured from a transmitting unit and a receiving unit. The transmitting unit may be configured from a transmission processing unit 1211 and an RF unit 122. The receiving unit may be configured from a reception processing unit 1212, the RF unit 122, and a measurement unit 123.

[0180] The transmitting and receiving antenna 130 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure relates, such as an array antenna.

[0181] The transceiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 120 may receive the above-mentioned uplink channel, uplink reference signal, etc.

[0182] The transceiver 120 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0183] The transmitter / receiver unit 120 (transmission processing unit 1211) may perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 110, and generate a bit string to be transmitted.

[0184] The transmitter / receiver unit 120 (transmission processing unit 1211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0185] The transceiver unit 120 (RF unit 122) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 130.

[0186] On the other hand, the transceiver unit 120 (RF unit 122) may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 130.

[0187] The transceiver 120 (reception processing unit 1212) may apply reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, thereby acquiring user data, etc.

[0188] The transceiver 120 (measurement unit 123) may perform measurements on the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may measure received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 110.

[0189] The transmission path interface 140 may transmit and receive signals (backhaul signaling) between devices included in the core network 30, other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0190] The transmitting section and receiving section of the base station 10 in the present disclosure may be configured by at least one of the transmitting / receiving section 120, the transmitting / receiving antenna 130, and the transmission path interface 140.

[0191] The transceiver 120 may receive the number of supported simultaneous model inference calculations as the capability information of the terminal. The controller 110 may calculate channel status information (CSI) using model inference based on the number of simultaneous model inference calculations, and may control the reception of reports of the CSI.

[0192] The control unit 110 may control a timing for transmitting a channel state information (CSI) report in the terminal using the calculation time for model inference. The transceiver unit 120 may receive the CSI report at the transmission timing.

[0193] (User Terminal) Fig. 15 is a diagram showing an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transceiver unit 220, and a transceiver antenna 230. Note that the user terminal may include one or more of each of the control unit 210, the transceiver unit 220, and the transceiver antenna 230.

[0194] In this example, the functional blocks of the characteristic parts of the present embodiment are mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0195] The control unit 210 performs overall control of the user terminal 20. The control unit 210 can be configured from a controller, a control circuit, etc., which are described based on common understanding in the technical field to which the present disclosure relates.

[0196] The control unit 210 may control signal generation, mapping, etc. The control unit 210 may control transmission and reception, measurement, etc. using the transceiver unit 220 and the transceiver antenna 230. The control unit 210 may generate data, control information, sequences, etc. to be transmitted as signals and transfer them to the transceiver unit 220.

[0197] The transceiver unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transceiver unit 220 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0198] The transmitting / receiving unit 220 may be configured as an integrated transmitting / receiving unit, or may be composed of a transmitting unit and a receiving unit. The transmitting unit may be composed of a transmission processing unit 2211 and an RF unit 222. The receiving unit may be composed of a reception processing unit 2212, an RF unit 222, and a measurement unit 223.

[0199] The transmitting / receiving antenna 230 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure relates, such as an array antenna.

[0200] The transceiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0201] The transceiver unit 220 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0202] The transceiver unit 220 (transmission processing unit 2211) may perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 210, and generate a bit string to be transmitted.

[0203] The transmitter / receiver unit 220 (transmission processing unit 2211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0204] Whether or not to apply DFT processing may be based on the setting of transform precoding. When transform precoding is enabled for a certain channel (e.g., PUSCH), the transceiver unit 220 (transmission processing unit 2211) may perform DFT processing as the transmission processing to transmit the channel using a DFT-s-OFDM waveform, and if not, it may not be necessary to perform DFT processing as the transmission processing.

[0205] The transceiver unit 220 (RF unit 222) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 230.

[0206] On the other hand, the transceiver unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 230.

[0207] The transceiver unit 220 (reception processing unit 2212) may apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, and acquire user data, etc.

[0208] The transceiver 220 (measurement unit 223) may perform measurements on the received signal. For example, the measurement unit 223 may perform RRM measurements, CSI measurements, etc. based on the received signal. The measurement unit 223 may measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

[0209] The transmitting unit and receiving unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmitting / receiving unit 220 and the transmitting / receiving antenna 230.

[0210] The transceiver 220 may transmit the number of supported simultaneous model inference calculations as the capability information of the terminal. The controller 210 may calculate the channel status indicator (CSI) using model inference based on the number of simultaneous model inference calculations.

[0211] The control unit 210 may determine the number of Central Processing Units (CPUs) occupied by the CSI calculation without using the model inference and the number of CPUs occupied by the model inference calculation based on at least one of information related to the applied model, inputs provided to the applied model, and settings of associated CSI reports or CSI reference signals (CSI-RS).

[0212] The control unit 210 may determine the application of model inference for the CSI report based on the number of remaining CPUs or Graphics Processing Units (GPUs) available for model inference calculations.

[0213] The control unit 210 may estimate the symbols to be occupied by the CPU or GPU for model inference based on the symbols of the RS resources used for model input or the symbols of the physical downlink control channel (PDCCH) that trigger the CSI report for which model inference is required.

[0214] The control unit 210 may determine a timing for transmitting a channel state information (CSI) report using the calculation time for model inference. The transceiver unit 220 may transmit the CSI report at the transmission timing.

[0215] The control unit 210 may determine the timing of transmitting the CSI report based on the time obtained by adding the calculation time for model inference to the CSI calculation time.

[0216] If the first UL symbol for transmitting the CSI report is not earlier than the determined transmission timing, the controller 210 may determine to transmit the CSI report in the UL symbol.

[0217] The control unit 210 may determine the time domain of the CSI reference resource based on at least one of the relevant information of the model, the parameters of the terminal capabilities, and the parameters set or indicated by the physical layer signaling or the higher layer signaling.

[0218] (Hardware Configuration) Note that the block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wires, wirelessly, etc.) and these multiple devices. The functional block may be realized by combining software with the single device or the multiple devices.

[0219] Here, the functions include, but are not limited to, judgment, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, deeming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission may be called a transmitting unit, transmitter, etc. As described above, the implementation method of each is not particularly limited.

[0220] For example, a base station, a user terminal, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 16 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment. The above-described base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0221] In the present disclosure, the terms apparatus, circuit, device, section, unit, etc. may be used interchangeably. The hardware configurations of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the drawings, or may be configured to exclude some of the devices.

[0222] For example, although only one processor 1001 is shown, there may be multiple processors. Furthermore, processing may be performed by one processor, or processing may be performed by two or more processors simultaneously, serially, or in other ways. Furthermore, processor 1001 may be implemented by one or more chips.

[0223] Each function in the base station 10 and the user terminal 20 is realized, for example, by loading specified software (programs) onto hardware such as a processor 1001 and a memory 1002, causing the processor 1001 to perform calculations, control communication via the communication device 1004, and control at least one of reading and writing data in the memory 1002 and the storage 1003.

[0224] The processor 1001, for example, runs an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, at least a part of the above-mentioned control unit 110 (210), transceiver unit 120 (220), etc. may be realized by the processor 1001.

[0225] The processor 1001 also reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and the other functional blocks may be implemented in a similar manner.

[0226] The memory 1002 is a computer-readable recording medium and may be configured by at least one of, for example, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EEPROM (EEPROM), Random Access Memory (RAM), or other suitable storage medium. The memory 1002 may also be referred to as a register, cache, main memory, etc. The memory 1002 may store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.

[0227] Storage 1003 is a computer-readable recording medium and may be composed of at least one of, for example, a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disc (e.g., a Compact Disc ROM (CD-ROM)), a digital versatile disc, a Blu-ray disc), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, a stick, a key drive), a magnetic stripe, a database, a server, or other suitable storage medium. Storage 1003 may also be referred to as an auxiliary storage device.

[0228] The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, or a communication module. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmission / reception unit 120 (220), transmission / reception antenna 130 (230), etc. may be realized by the communication device 1004. The transmission / reception unit 120 (220) may be implemented as a transmission unit 120a (220a) and a reception unit 120b (220b) that are physically or logically separated.

[0229] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, a light emitting diode (LED) lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).

[0230] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0231] Furthermore, the base station 10 and the user terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized using this hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0232] (Modifications) Note that terms described in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may be interchangeable. A signal may also be a message. A reference signal may be abbreviated as RS, and may also be called a pilot, pilot signal, etc. depending on the applicable standard. A component carrier (CC) may also be called a cell, frequency carrier, carrier frequency, etc.

[0233] A radio frame may be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting a radio frame may be called a subframe. Furthermore, a subframe may be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0234] Here, the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel, and may indicate at least one of, for example, Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering performed by a transceiver in the frequency domain, and specific windowing performed by a transceiver in the time domain.

[0235] A slot may be composed of one or more symbols (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol) in the time domain. A slot may also be a time unit based on numerology.

[0236] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (PUSCH) mapping type B.

[0237] A radio frame, a subframe, a slot, a minislot, and a symbol all represent time units for transmitting signals. The radio frame, the subframe, the slot, the minislot, and the symbol may be referred to by other names corresponding to the radio frame, the subframe, the slot, the minislot, and the symbol. Note that the time units such as a frame, a subframe, a slot, a minislot, and a symbol in the present disclosure may be interchangeable.

[0238] For example, one subframe may be referred to as a TTI, or multiple consecutive subframes may be referred to as a TTI, or one slot or one minislot may be referred to as a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0239] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. Note that the definition of TTI is not limited to this.

[0240] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0241] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0242] A TTI having a time length of 1 ms may be called a regular TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0243] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and greater than or equal to 1 ms.

[0244] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may be determined based on numerology.

[0245] In addition, an RB may include one or more symbols in the time domain and may have a length of one slot, one minislot, one subframe, or one TTI, each of which may be composed of one or more resource blocks.

[0246] In addition, one or more RBs may be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0247] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0248] A Bandwidth Part (BWP), which may also be referred to as a partial bandwidth, may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a Common Reference Point of the carrier. PRBs may be defined in a BWP and numbered within the BWP.

[0249] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). One or more BWPs may be configured for a UE within one carrier.

[0250] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0251] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc. may be changed in various ways.

[0252] Furthermore, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values ​​from a predetermined value, or may be expressed using other corresponding information. For example, a radio resource may be indicated by a predetermined index.

[0253] The names used for parameters and the like in this disclosure are not intended to be limiting in any way. Furthermore, the mathematical expressions and the like using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0254] The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0255] Furthermore, information, signals, etc. may be output from a higher layer to a lower layer and / or from a lower layer to a higher layer. Information, signals, etc. may be input / output via multiple network nodes.

[0256] Input and output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input and output information, signals, etc. may be overwritten, updated, or added. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to another device.

[0257] The notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information in the present disclosure may be performed by physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB) and System Information Block (SIB)), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0258] Note that the physical layer signaling may be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. Furthermore, the RRC signaling may be referred to as an RRC message, such as an RRC Connection Setup message or an RRC Connection Reconfiguration message. Furthermore, the MAC signaling may be notified using, for example, a MAC Control Element (CE).

[0259] Furthermore, notification of specified information (e.g., notification that "it is X") is not limited to explicit notification, but may be made implicitly (e.g., by not notifying the specified information or by notifying other information).

[0260] The determination may be made by a value represented by one bit (0 or 1), by a Boolean value represented by true or false, or by a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0261] Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0262] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), these wired and / or wireless technologies are included within the definition of transmission media.

[0263] As used in this disclosure, the terms "system" and "network" may be used interchangeably. A "network" may refer to devices included in the network (e.g., base stations).

[0264] In the present disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "Quasi-Co-Location (QCL)," "Transmission Configuration Indication state (TCI state)," "spatial relation," "spatial domain filter," "transmit power," "phase rotation," "antenna port," "antenna port group," "layer," "number of layers," "rank," "resource," "resource set," "resource group," "beam," "beam width," "beam angle," "antenna," "antenna element," "panel," etc. may be used interchangeably.

[0265] In the present disclosure, terms such as "base station (BS)," "radio base station," "fixed station," "NodeB," "eNB (eNodeB)," "gNB (gNodeB)," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "cell," "sector," "cell group," "carrier," "component carrier," etc. may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, picocell, etc.

[0266] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be partitioned into multiple smaller areas, and each smaller area can be provided with communication service by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The terms "cell" or "sector" refer to part or all of the coverage area of ​​a base station and / or base station subsystem that provides communication service within that coverage.

[0267] In the present disclosure, a base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control / operate based on the information.

[0268] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0269] A mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0270] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc. Note that at least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.

[0271] The mobile body is a movable object that can move at any speed and naturally includes cases where the mobile body is stationary. Examples of the mobile body include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones, multicopters, quadcopters, balloons, and objects mounted thereon. The mobile body may also be a mobile body that moves autonomously based on an operation command.

[0272] The mobile object may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Note that at least one of the base station and the mobile station may also include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0273] 17 is a diagram showing an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, an electronic control unit 49, various sensors (including a current sensor 50, an RPM sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0274] The drive unit 41 is configured with at least one of an engine, a motor, and a hybrid of an engine and a motor, for example. The steering unit 42 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by a user.

[0275] The electronic control unit 49 is composed of a microprocessor 61, memory (ROM, RAM) 62, and a communication port (for example, an input / output (IO) port) 63. Signals are input to the electronic control unit 49 from various sensors 50-58 provided in the vehicle. The electronic control unit 49 may also be called an Electronic Control Unit (ECU).

[0276] The signals from the various sensors 50-58 include a current signal from a current sensor 50 that senses the current of the motor, a rotation speed signal of the front wheels 46 / rear wheels 47 obtained by a rotation speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 obtained by an air pressure sensor 52, a vehicle speed signal obtained by a vehicle speed sensor 53, an acceleration signal obtained by an acceleration sensor 54, a depression amount signal of the accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 obtained by a brake pedal sensor 56, an operation signal of the shift lever 45 obtained by a shift lever sensor 57, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58.

[0277] The information service unit 59 is composed of various devices, such as a car navigation system, an audio system, speakers, a display, a television, and a radio, for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 59 uses information acquired from external devices via the communication module 60 or the like to provide various information / services (e.g., multimedia information / multimedia services) to the occupants of the vehicle 40.

[0278] The information service unit 59 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0279] The driving assistance system unit 64 includes various devices for providing functions to prevent accidents and reduce the driver's driving burden, such as millimeter-wave radar, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyro systems (e.g., Inertial Measurement Units (IMUs), Inertial Navigation Systems (INSs)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driving assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driving assistance functions or autonomous driving functions.

[0280] The communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) via the communication port 63 to and from the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58, which are provided in the vehicle 40.

[0281] The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with an external device. For example, it transmits and receives various information to and from the external device via wireless communication. The communication module 60 may be located either inside or outside the electronic control unit 49. The external device may be, for example, the base station 10 or the user terminal 20 described above. Furthermore, the communication module 60 may be, for example, at least one of the base station 10 and the user terminal 20 described above (or may function as at least one of the base station 10 and the user terminal 20).

[0282] The communication module 60 may transmit at least one of signals from the above-mentioned various sensors 50-58 input to the electronic control unit 49, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 59 to an external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 60 may include information based on the above-mentioned input.

[0283] The communication module 60 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from an external device and displays it on an information service unit 59 provided in the vehicle. The information service unit 59 may also be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH received by the communication module 60 (or data / information decoded from the PDSCH)).

[0284] Furthermore, the communication module 60 stores various information received from external devices in a memory 62 that can be used by the microprocessor 61. Based on the information stored in the memory 62, the microprocessor 61 may control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, various sensors 50-58, and the like provided in the vehicle 40.

[0285] Furthermore, a base station in the present disclosure may be read as a user terminal. For example, the aspects / embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D) or Vehicle-to-Everything (V2X)). In this case, the user terminal 20 may be configured to have the functions of the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to terminal-to-terminal communication (for example, "sidelink"). For example, terms such as an uplink channel and a downlink channel may be read as a sidelink channel.

[0286] Similarly, the user terminal in the present disclosure may be read as a base station, in which case the base station 10 may be configured to have the functions of the user terminal 20 described above.

[0287] In the present disclosure, an operation described as being performed by a base station may be performed by its upper node in some cases. It is apparent that in a network including one or more network nodes having a base station, various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (such as, but not limited to, a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc.), or a combination thereof.

[0288] Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Furthermore, the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0289] Each aspect / embodiment described in the present disclosure may be a technology other than Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or decimal number)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (Wi-Fi (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (Wi-Fi (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), IEEE 802. The present invention may be applied to systems that use IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other suitable wireless communication methods, or to next-generation systems that are expanded, modified, created, or defined based on these. Furthermore, the present invention may be applied to a combination of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

[0290] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0291] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0292] The term "determining" as used in this disclosure may encompass a wide variety of actions. For example, "determining" may be considered to be judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry (e.g., looking up in a table, database, or another data structure), ascertaining, etc.

[0293] Additionally, "determining" may be considered to be "determining" receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), etc.

[0294] Also, "determination" may be considered to be "deciding" resolving, selecting, choosing, establishing, comparing, etc. In other words, "determination" may be considered to be "deciding" some action.

[0295] Furthermore, "judgment (decision)" may be read as "assuming," "expecting," "considering," or the like.

[0296] The "maximum transmit power" in this disclosure may mean the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0297] As used in this disclosure, the terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access."

[0298] In this disclosure, when two elements are connected, they may be considered to be "connected" or "coupled" to one another using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy having wavelengths in the radio frequency range, microwave range, light (both visible and invisible) range, etc., as some non-limiting and non-exhaustive examples.

[0299] In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0300] When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

[0301] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0302] In the present disclosure, terms such as "less than or equal to," "less than," "greater than," "more than," "equal to," etc. may be interchangeable. Furthermore, in the present disclosure, terms meaning "good," "bad," "big," "small," "high," "low," "fast," "slow," "wide," "narrow," etc. may be interchangeable, not limited to the positive, comparative, and superlative. Furthermore, in the present disclosure, terms meaning "good," "bad," "big," "small," "high," "low," "fast," "slow," "wide," "narrow," etc. may be interchangeable, not limited to the positive, comparative, and superlative, as expressions with "i-th" (i is an arbitrary integer) attached (for example, "highest" may be interchangeable with "i-th highest").

[0303] In this disclosure, the terms "of," "for," "regarding," "related to," "associated with," etc. may be read interchangeably.

[0304] Although the invention according to the present disclosure has been described in detail above, it is clear to those skilled in the art that the invention according to the present disclosure is not limited to the embodiments described in the present disclosure. The invention according to the present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined by the description of the claims. Therefore, the description of the present disclosure is intended to be illustrative and explanatory and does not impose any limiting meaning on the invention according to the present disclosure.

Claims

1. A control unit that determines the timing of transmitting a channel state information (CSI) report using artificial intelligence / machine learning (AI / ML) prediction based on a time obtained by adding an additional time to a time for calculating CSI without using AI / ML prediction; a transmitter that transmits the CSI report at the transmission timing, The control unit determines the number of CSI processing units (CPUs) occupied by CSI calculation without using AI / ML prediction and the number of CPUs occupied by CSI calculation with AI / ML prediction based on a report amount setting in a CSI report setting. Terminal.

2. The control unit determines application of the AI / ML prediction for the CSI report based on the remaining number of CPUs available for CSI calculation using the AI / ML prediction. The terminal according to claim 1 .

3. The transmitting unit transmits the number of supported CPUs used for simultaneous CSI calculation using AI / ML prediction as terminal capability information separately from the number of supported CPUs used for simultaneous CSI calculation. The terminal according to claim 1 .

4. The transmission unit transmits the additional time as capability information of the terminal. The terminal according to claim 1 .

5. A step of determining the timing of transmitting a channel state information (CSI) report using artificial intelligence / machine learning (AI / ML) prediction based on a time obtained by adding an additional time to a time for calculating CSI without using AI / ML prediction; transmitting the CSI report at the transmission timing; determining the number of CSI processing units (CPUs) to be occupied by CSI calculation without using AI / ML prediction and the number of CPUs to be occupied by CSI calculation with the AI / ML prediction based on a reporting amount setting in a CSI report setting; A wireless communication method for a terminal having the above configuration.

6. A control unit that controls reception of a channel state information (CSI) report using artificial intelligence / machine learning (AI / ML) prediction when a transmission timing of the CSI report using AI / ML prediction is determined based on a time obtained by adding an additional time to a channel state information (CSI) calculation time without AI / ML prediction, The number of CPUs occupied by CSI calculation without using AI / ML prediction and the number of CSI processing units (CPUs) occupied by CSI calculation with the AI / ML prediction are determined based on a report amount setting in the CSI report setting. Base station.

7. A system including a terminal and a base station, The terminal a control unit that determines a transmission timing of a channel state information (CSI) report using artificial intelligence / machine learning (AI / ML) prediction based on a time obtained by adding an additional time to a CSI calculation time without using AI / ML prediction; a transmitter that transmits the CSI report at the transmission timing, The control unit determines the number of CSI processing units (CPUs) occupied by CSI calculation without using AI / ML prediction and the number of CPUs occupied by CSI calculation with the AI / ML prediction based on a report amount setting in a CSI report setting; The base station a control unit for controlling reception of the CSI report; system.