Terminal, wireless communication method, and base station

Abstract

A terminal according to one embodiment of the present disclosure is provided with: a reception unit that receives settings for a Doppler channel state information (CSI) report; and a control unit that identifies whether or not a situation occurs in which a plurality of uplink shared channels scheduled by one downlink control information are set. According to one embodiment of the present disclosure, CSI can be appropriately reported.

Description

TECHNICAL FIELD

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

[0002] In a Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) is standardized for the purpose of further higher-speed data rates, lower delay, and so on (Non-Patent Literature 1). Further, LTE-Advanced (3GPP Rel. 10-14) is standardized for the purpose of further larger capacity, higher density, and so on of LTE (Third Generation Partnership Project (3GPP (registered trademark)) Release (Rel.) 8, 9).

[0003] A subsequent system of LTE (for example, also referred to as a 5th generation mobile communication system (5G), 5G+, a 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 onwards, and so on) is also under study.

[0004] PRIOR ART DOCUMENTS

[0005] NON-PATENT LITERATURE

[0006] Non-Patent Literature 1: 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRAN); Overall description; Stage 2 (Release 8)”, April 2010 SUMMARY

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] In a future wireless communication system (for example, NR), reporting of channel state information (CSI) based on reception of a reference signal is being studied. Further, improvement of communication performance in a terminal (user terminal, User Equipment (UE)) moving at a high / medium speed is being studied.

[0009] However, CSI / codebook in such a terminal has not been sufficiently studied. If such a method is not clearly specified, there is a concern that communication throughput, communication quality, and the like are degraded.

[0010] Therefore, one of the objects of the present disclosure is to provide a terminal that appropriately reports CSI, a wireless communication method, and a base station.

[0011] Means for solving the problem

[0012] A terminal according to an aspect of the present disclosure includes a reception unit that receives a setting of a channel state information (CSI) report for Doppler, and a control unit that identifies whether a situation in which a plurality of uplink shared channels scheduled by one downlink control information is set occurs.

[0013] Effects of the invention

[0014] According to an aspect of the present disclosure, it is possible to appropriately report CSI. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 An example of a 16-level quantization table is shown.

[0016] Figure 2 An example of an 8-level quantization table is shown.

[0017] Figure 3A And Figure 3B An example of a Type 2 PS codebook / enhanced Type 2 PS codebook is shown.

[0018] Figure 4A And Figure 4B An example of an additional enhanced Type 2 PS codebook is shown.

[0019] Figure 5 An example of a parameter combination for an enhanced Type 2 codebook is shown.

[0020] Figure 6 An example of a parameter combination for an additional enhanced Type 2 PS codebook is shown.

[0021] Figure 7 An example of a setting of a CSI-RS resource and a CSI report is shown.

[0022] Figure 8 An example of timing of measurement / reporting of Doppler CSI.

[0023] Figure 9 An example of timing of measurement / reporting of Rel.17 Type 2 CSI.

[0024] Figure 10 An example of setting of offset #1 and #2.

[0025] Figure 11 An example of occurrence of situation X.

[0026] Figure 12 An example of simultaneous setting of multi-PUSCH scheduling and Doppler Type 2 CSI.

[0027] Figure 13 FIG. 1 is a diagram showing an example of an outline structure of a wireless communication system according to an embodiment.

[0028] Figure 14 FIG. 2 is a diagram showing an example of a structure of a base station according to an embodiment.

[0029] Figure 15 FIG. 3 is a diagram showing an example of a structure of a user terminal according to an embodiment.

[0030] Figure 16 FIG. 4 is a diagram showing an example of a hardware structure of a base station and a user terminal according to an embodiment.

[0031] Figure 17 FIG. 5 is a diagram showing an example of a vehicle according to an embodiment. DETAILED DESCRIPTION

[0032] (CSI reporting (CSI report) or reporting)

[0033] In Rel. 15 NR, a terminal (also referred to as a user terminal, a User Equipment (UE), etc.) generates (also referred to as decides, calculates, estimates, measures, etc.) Channel State Information (CSI) based on a Reference Signal (RS) (or a resource for the RS), and transmits (also referred to as reports, feeds back, etc.) the generated CSI to a network (for example, a base station). The CSI can also be transmitted to the base station using, for example, an uplink control channel (for example, a Physical Uplink Control Channel (PUCCH)) or an uplink shared channel (for example, a Physical Uplink Shared Channel (PUSCH)).

[0034] The RS used in the generation of the CSI can be, for example, at least one of a Channel State Information Reference Signal (CSI-RS), a Synchronization Signal / Physical Broadcast Channel (PBCH) (SS / PBCH) block, a Synchronization Signal (SS), a DeModulation Reference Signal (DMRS), etc.

[0035] The CSI-RS can include at least one of a Non Zero Power (NZP) CSI-RS and a CSI-Interference Management (CSI-IM). The SS / PBCH block is a block including the SS and the PBCH (and a corresponding DMRS), and can also be referred to as an SS block (SSB), etc. Further, the SS can include at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS).

[0036] In addition, the CSI can also include at least one of a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), a CSI-RS Resource Indicator (CRI), an SS / PBCH Block Resource Indicator (SSBRI), a Layer Indicator (LI), a Rank Indicator (RI), an L1-RSRP (Reference Signal Received Power in Layer 1 (Layer 1 Reference Signal Received Power)), an L1-RSRQ (Reference Signal Received Quality), an L1-SINR (Signal to Interference plus Noise Ratio), an L1-SNR (Signal to Noise Ratio), and the like.

[0037] The UE can also receive information related to the CSI report (report configuration information) and control the CSI report based on the report configuration information. The report configuration information can also be, for example, an Information Element (IE) of Radio Resource Control (RRC) “CSI-ReportConfig”. In addition, in the present disclosure, the RRC IE can also be mutually overwritten with an RRC parameter, a higher layer parameter, and the like.

[0038] The report configuration information (for example, the RRC IE “CSI-ReportConfig”) can also include, for example, at least one of the following.

[0039] • Information related to the type of the CSI report (report type information, for example, the RRC IE “reportConfigType”)

[0040] • Information related to one or more quantities (quantities) of CSI that should be reported (one or more CSI parameters) (report quantity information, for example, the RRC IE “reportQuantity”)

[0041] • Information related to the resource used for the RS used in the generation of the amount (the CSI parameter) (resource information, such as "CSI-ResourceConfigld" of the RRC IE)

[0042] • Information related to the frequency domain that is the object of the CSI report (frequency domain information, such as "reportFreqConfiguration" of the RRC IE)

[0043] For example, the report type information can also indicate a periodic CSI (P-CSI) report, an aperiodic CSI (A-CSI) report, or a semi-persistent CSI (SP-CSI) report.

[0044] Further, the report amount information can also specify a combination of at least one of the above-described CSI parameters (for example, CRI, RI, PMI, CQI, LI, L1-RSRP, and the like).

[0045] Further, the resource information can also be an ID of the resource for the RS. The resource for the RS can also include, for example, a non-zero-power CSI-RS resource or an SSB, and a CSI-IM resource (for example, a zero-power CSI-RS resource).

[0046] Further, the frequency domain information can also indicate the frequency granularity of the CSI report. The frequency granularity can also include, for example, a wideband and a subband. The wideband is the entire CSI reporting band. The wideband can be, for example, the entire band of a certain carrier (Component Carrier (CC), cell, serving cell), or the entire band of a bandwidth part (BWP) within a certain carrier. The wideband can also be referred to as a CSI reporting band, an entire CSI reporting band, and the like.

[0047] Further, the subband is a part of the wideband and can also be composed of one or more resource blocks (Resource Block (RB) or Physical Resource Block (PRB)). The size of the subband can also be determined according to the size of the BWP (the number of PRBs).

[0048] The frequency domain information can also indicate which of the wideband or subband PMI is reported (the frequency domain information can also include, for example, a "pmi-FormatIndicator" of a RRC IE for a decision of either of the wideband PMI reporting or the subband PMI reporting). The UE can also decide the frequency granularity of the CSI reporting (i.e., either of the wideband PMI reporting or the subband PMI reporting) based on at least one of the above-described reporting quantity information and the frequency domain information.

[0049] In a case where the wideband PMI reporting is set (decided), one wideband PMI can also be reported for the whole of the CSI reporting band. On the other hand, in a case where the subband PMI reporting is set, it can also be that a single wideband indication il is reported for the whole of the CSI reporting band, and one subband indication i2 (e.g., a subband indication for each subband) for each of one or more subbands within the CSI reporting band is reported.

[0050] The UE performs channel estimation using the received RS, and estimates a channel matrix H. The UE feeds back an index (PMI) decided based on the estimated channel matrix.

[0051] The PMI can also indicate a precoder matrix (may also be referred to simply as a precoder) that the UE considers to be suitable for use in downlink (DL) transmission to the UE. Each value of the PMI can correspond to one precoder matrix. A set of values of the PMI can correspond to a set of different precoder matrices referred to as a precoder codebook (may also be referred to simply as a codebook).

[0052] In the space domain, the CSI reporting can also include one or more types of CSI. For example, the CSI can include at least one of a first type (Type 1 CSI) used in selection of a single beam and a second type (Type 2 CSI) used in selection of multiple beams. A single beam can also be referred to as a single layer, and multiple beams can also be referred to as multiple layers. In addition, Type 1 CSI can not assume multi-user multiple input multiple output (MU-MIMO), and Type 2 CSI can assume multi-user MU-MIMO.

[0053] The codebook described above can also include a codebook for Type 1 CSI (also referred to as Type 1 codebook, etc.) and a codebook for Type 2 CSI (also referred to as Type 2 codebook, etc.). Further, Type 1 CSI can also include Type 1 single-panel CSI and Type 1 multi-panel CSI, and different codebooks can be respectively defined (Type 1 single-panel codebook, Type 1 multi-panel codebook).

[0054] In the present disclosure, Type 1 and Type I can also be overwritten with each other. In the present disclosure, Type 2 and Type II can also be overwritten with each other.

[0055] The uplink control information (UCI) type can also include at least one of a hybrid automatic repeat request acknowledgement (HARQ-ACK), a scheduling request (SR), and CSI. The UCI can be carried by PUCCH or PUSCH.

[0056] In Rel. 15 NR, the UCI can include one CSI part for wideband PMI feedback. The CSI report #n includes wideband PMI information in the case of being reported.

[0057] In Rel. 15 NR, the UCI can include two CSI parts for subband PMI feedback. The CSI part 1 includes wideband PMI information. The CSI part 2 includes one wideband PMI information and several subband PMI information. The CSI part 1 and the CSI part 2 are independently encoded.

[0058] In Rel. 15 NR, a UE is configured by higher layers with N (N≥1) CSI report configurations and M (M≥1) CSI resource configurations. For example, a CSI report configuration (CSI-ReportConfig) contains resourcesForChannelMeasurement, csi-IM-ResourceForInterference, nzp-CSI-RS-ResourceForInterference, reportQuantity, and the like. The resourcesForChannelMeasurement, csi-IM-ResourceForInterference, nzp-CSI-RS-ResourceForInterference are associated with a CSI resource configuration (CSI-ResourceConfig, CSI-ResourceConfigId), respectively. The CSI resource configuration contains a list of CSI-RS resource sets (csi-RS-ResourceSetList, e.g., NZP-CSI-RS resource set or CSI-IM resource set).

[0059] In order to enable more dynamic channel / interference hypotheses for NCJT with both FR1 and FR2 as targets, evaluation and specification of CSI reporting for at least one of multi-TRP and multi-panel transmission of DL are being studied.

[0060] (Codebook configuration)

[0061] A UE is configured by higher layer signaling (RRC signaling) with parameters related to codebook (CB) (CodebookConfig). The codebook configuration is included in a higher layer (RRC) parameter of a CSI report configuration (CSI-ReportConfig).

[0062] In the codebook configuration, at least one of a plurality of codebooks including type 1 single panel (typeI-SinglePanel), type 1 multi-panel (typeI-MultiPanel), type 2 (typeII), and type 2 port selection (typeII-PortSelection) is selected.

[0063] A parameter related to codebook subset restriction (CBSR) is included in the parameters of the codebook ( "... Restriction" within CodebookConfig). The setting of CBSR is a bit indicating which PMI report is allowed ("1") and which PMI report is not allowed ("0") for the precoder associated with the bit of CBSR. One codebook index / antenna port corresponds to 1 bit of the CBSR bitmap.

[0064] (CSI report setting)

[0065] The CSI report setting (CSI-ReportConfig) of Rel. 16 includes, in addition to the codebook setting (CodebookConfig), CSI-RS resources for channel measurement (resourcesForChannelMeasurement (CMR)), CSI-RS resources for interference measurement (csi-IM-ResourcesForInterference (ZP-IMR), nzp-CSI-RS-ResourcesForInterference (NZP-IMR)), and the like. The parameters in the parameters of the CSI-ReportConfig, except for codebookConfig-r16, are also included in the CSI report setting of Rel. 15.

[0066] In Rel. 17, an enhanced CSI report setting (CSI-ReportConfig) for CSI measurement / reporting of multi-TRP using NCJT is being studied. In this CSI report setting, two CMR groups corresponding to each of the two TRPs are set. The CMRs within the CMR group can also be used for measurement of at least one of multi-TRP using NCJT and single-TRP. N pairs of CMRs for NCJT are set by RRC signaling. The UE can also be set by RRC signaling whether to use the CMRs of the CMR pair for single-TRP measurement.

[0067] For the CSI report associated with the NCJT measurement of multi-TRP / panel set by a single CSI report setting, at least one of the following options 1 and 2 is being studied.

[0068] < Option 1 >

[0069] The UE is configured to report X (X=0, 1, 2) CSI associated with single-TRP measurement hypotheses and one CSI associated with NCJT measurement. In the case of X=2, two CSIs are associated with two different single-TRP measurements using different CMR groups of CMRs.

[0070] < Option 2 >

[0071] The UE can also be configured to report one CSI associated with the best measurement result among the measurement hypotheses for NCJT and single-TRP.

[0072] As described above, in Rel. 15 / 16, CBSR is configured per codebook configuration set by each CSI reporting configuration. That is, CBSR is applied to all CMRs, etc. within the corresponding CSI reporting configuration.

[0073] However, in the Rel. 17 CSI reporting configuration for multi-TRP based on CSI reporting configuration, in the case where the above-described Option 1, 2 is applied, it is possible to make the following measurement configuration.

[0074] Option 1 (X=0): Measurement of CSI for NCJT only.

[0075] Option 1 (X=1): Measurement of CSI for NCJT and single-TRP (one TRP).

[0076] Option 1 (X=2): Measurement of CSI for NCJT and single-TRP (two TRPs).

[0077] Option 2: Measurement of both CSI for NCJT and single-TRP.

[0078] The multiple subbands for CSI reporting #n indicated and provided by the higher layer parameter csi-ReportingBand can also contain the lowest subband of csi-ReportingBand as subband 0 and be consecutively numbered in ascending order.

[0079] (Type 1 codebook)

[0080] For base station panels, Type 1 single-panel codebook and Type 1 multi-panel codebook are specified as Type 1 codebook (Rel. 15). In Type 1 single-panel, for (N1, N2), an antenna model of CSI antenna port array (logical configuration) is specified. The number of CSI-RS antenna ports P CSI-RS is 2N1N2. In Type 1 multi-panel, for the number of CSI-RS antenna ports P CSI-RS and (N gThe antenna model (logically defined) is defined by N1, N2, etc., which represents the CSI antenna port array.

[0081] For Rel.15 Type 1 Single-Panel CSI, the UE sets the high-level parameter for the codebook type (the subType within type1 in codebookType within CodebookConfig) to Type 1 Single-Panel ('typeI-SinglePanel'). In cases where the layer number v ∈ {2,3,4} is not present, the PMI value corresponds to the three codebook indices i. 1,1 i 1,2 ,i2. When the layer number v∈{2,3,4}, the PMI value corresponds to one of the four codebook indices i. 1,1 i 1,2 i 1,3 ,i2. In the case where the layer number v∈{2,3,4} is not, the composite codebook index i1=[i 1,1 i 1,2 In the case of layer number v∈{2,3,4}, the composite codebook index i1=[i 1,1 i 1,2 i 1,3 i1 can also be an index for the bandwidth. i2=n can also be an index for the subband / phase.

[0082] For P CSI-RS The specification defines supported settings (combinations of values) for (N1, N2) and (O1, O2). (N1, N2) represent the number of two-dimensional (2D) antenna elements, set by the higher-level parameters n1-n2 within moreThanTwo in nrOfAntennaPorts within typeI-SinglePanel. n1-n2 are bitmap parameters of N1O1N2O2 bits. (O1, O2) are the 2D oversampling factors.

[0083] In a codebook for a Level 1 CSI report and with codebookMode = 1, the index i corresponding to the horizontal beam... 1,1 =l=0,1,...,N1O1-1, the index i corresponding to the beam in the vertical direction. 1,2 =m=0,1,...,N2O2-1,i2=n=0,1,2,3, using antenna ports 3000 to 2999+P CSI-RS The matrix used in the Level 1 CSI report codebook is W_i 1,1 i 1,2 ,i2^(1). Here, W l,m,n （1） Provided by the following formula.

[0084]

[0085] Here, v l,m is an element (SD basis) of an N1-row N2-column 2D-SD (DFT) basis vector (matrix, exp(j2πln1 / O1N1) x exp(j2πmn2 / O2N2), n1=0,1,...,N1-1, n2=0,1,...,N2-1). The phase matching (co-phasing) φ n between polarizations (horizontal polarization and vertical polarization) = exp(jπn / 2) indicates the phase of the phase of the other polarization with respect to one polarization.

[0086] For Rel. 15 Type 1 multi-panel CSI, in addition to N1, N2, the number of panels N g is also set. As inter-panel phase matching (inter-panel co-phasing, phase compensation between panels), i 1,4 is additionally reported. For each panel, the same SD beam (precoding matrix W l ) is selected, and only the inter-panel phase matching is additionally reported.

[0087] For P CSI-RS , the supported (N g , N1, N2) and (O1, O2) settings (value combinations) are specified in the specification. (N1, N2) is set by ng-n1-n2 within typeI-MultiPanel.i 1,1 is {0,1,...,N1O1-1}.i 1,2 is {0,1,...,N2O2-1}. For q=1,...,N g -1, i 1,4,q is {0,1,2,3}. i2 is {0,1,2,3}. For codebookMode = 1, the matrix used for 1-layer CSI reporting codebook for antenna ports 3000 to 2999+P CSI-RS is W_i 1,1 ,i 1,2 ,i 1,4 ,i2^ (1). Here, W l,m,p,n （1） = W l,m,p,n ^1,N g ,1.

[0088] For N gW_l,m,p,n^1,N = {2,4} g W_l,m,p,n^2,N = {2,4} g W_l,m,p,n^1,N = {2,4} g W_l,m,p,n^2,N = {2,4} l,m,p,n 1,2,1 W_l,m,p,n^1,N = {2,4} g W_l,m,p,n^2,N = {2,4} l,m,p,n 2,2,1 W_l,m,p,n^1,N = {2,4} g W_l,m,p,n^2,N = {2,4} l,m,p,n 1,4,1 W_l,m,p,n^1,N = {2,4} g W_l,m,p,n^2,N = {2,4} l,m,p,n 2,4,1 are provided by

[0089]

[0090] Here, φ n = e jπn / 2 . For N g = 2, p = p1, for N g = 4, p = [p1, p2, p3]. φ_p1, φ_p2, φ_p3 represent inter-panel phase matching. The same beam (SD beam matrix, precoding matrix W l ) is selected for panels 0, 1, 2, 3, φ_p1 represents phase compensation of panel 1 with respect to panel 0, φ_p2 represents phase compensation of panel 2 with respect to panel 0, and φ_p3 represents phase compensation of panel 3 with respect to panel 0.

[0091] (Type 2 codebook)

[0092] In the present disclosure, a matrix Z of X rows and Y columns is sometimes denoted as Z (X x Y).

[0093] Type 2 CSI of Rel. 15 generates a precoding vector (vector) for each subband (SB-wise) based on the following equation for a layer l that is provided.

[0094] W l (N t x N3) = W1W 2,l (F1)

[0095] N t is the number of antennas / antenna ports. N3 is the total number (subband number) of precoding (beamforming) matrices (precoders) represented by the PMI.

[0096] W1(N t ×2L) are (over-sampled) spatial domain (SD) vectors (SD 2D-DFT vectors, SD beams, SD matrices) with L e {2,4}. L is the number of beams. The actual number of beams considering horizontal polarization at 1 and vertical polarization is 2L. For example, L = 2 SD 2D-DFT vectors are b i and b j .

[0097] W 2,l (2L x N3) is a matrix of linear coupling coefficients (linear combination (LC) coefficients, subband complex LC coefficients, coupling coefficients) for layer l. W 2,l represents beam selection, and phase matching (co-phasing) between two polarizations. For example, two W 2,l are c i and c j . For example, the channel vector h is approximated by linear coupling of L = 2 SD 2D-DFT vectors c i b i + c j b j . The overhead of feedback mainly arises from the LC coefficient matrix W 2,l . In addition, Rel. 15 Type 2 CSI supports only rank 1 and 2.

[0098] In Type 2 CSI, the channel (channel matrix) for a certain user is represented by linear coupling of two polarizations and L beams (L SD 2D-DFT vectors). Rel. 15 Type 2 CSI supports rank 1, 2.

[0099] (Extended Type 2 codebook (Rel. 16))

[0100] Rel. 16 Type 2 CSI (Extended Type 2 codebook) reduces the overhead associated with W 2,l by frequency domain (FD) compression. Rel. 16 Type 2 CSI supports rank 3 and 4 in addition to rank 1 and 2.

[0101] In Rel. 16 Type 2 CSI, for a provided layer l, information based on the following equation can also be reported by the UE.

[0102] W l = W1W ~ l Wf,l H (F2)

[0103] W 2,l By W ~ l W f,l H The matrix W ~ may also be denoted with a tilde (~) (w wavy line) on top of W. W ~ l may also be denoted as W ~ 2,l The matrix W f,l H is the adjoint matrix of W f,l and can be obtained by taking the conjugate transpose of W f,l .

[0104] For CSI reporting, the UE can also be configured with one of two subband sizes. The subband (CQI subband) can also be defined as N PRB SB consecutive PRBs, which can depend on the total number of PRBs within the BWP. The number of PMI subbands R per CQI subband is configured by the RRC IE (numberOfPMI-SubbandsPerCQI-Subband). Regarding R, the total number of precoding matrices N3 represented by the PMI is controlled as a function of the number of subbands configured within csi-ReportingBand, the subband size configured by subbandSize, and the total number of PRBs within the BWP.

[0105] W1(N t x 2L) is a matrix of multiple (oversampled) SD 2D-DFT vectors. To represent this matrix, multiple indices of the SD 2D-DFT vectors are reported, as well as the two-dimensional over-sampling factor. The spatial domain response / distribution represented by the SD 2D-DFT vectors can also be referred to as an SD beam.

[0106] W ~ l (2L x M v ) is a matrix of LC coefficients. To represent this matrix, a maximum of K0 non-zero coefficients (NZCs, non-zero amplitude LC coefficients) are reported. This reporting consists of two parts: a bitmap that captures the NZC locations, and quantized NZCs.

[0107] W f,l (N3 x Mv ) is a matrix consisting of M v vectors (frequency domain (FD) bases vectors), each of which contains N3 FD bases. N3 is the total number of precoding (beamforming) matrices (precoders) represented by PMI as a function of the number of subbands set within csi-ReportingBand. csi-ReportingBand represents a continuous or discontinuous subband within a BWP in the case of reporting CSI for the BWP. There are M v FD bases (FD DFT bases) vectors per layer. In the case of N3 > 19, M v FD bases from an intermediate subset (InS) of size N3' (< N3) are selected. In the case of N3 ≤ 19, log2(C(N3-1, M v -1)) bits are reported. Here, C(N3-1, M v -1) represents the number of combinations (combinatorial coefficient C(x, y)) of selecting M v -1 from N3-1, also known as binomial coefficients.

[0108] The frequency domain response / distribution (frequency response) represented by the linear coupling of the FD bases vectors and the LC coefficients can also be referred to as an FD beam. The FD beam can also correspond to a delay distribution (time response).

[0109] The PMI subband size is provided by CQI subband size / R, R ∈ {1, 2}. The number of FD bases vectors M v provided by ceil(p v x N3 / R). The number of FD bases is the same for all layers l ∈ {1, 2, 3, 4}. p v is set by higher layers.

[0110] The multiple precoding matrices represented by PMI are determined according to L + M v vectors.

[0111] The elements (SD bases) v m_1^（i）,m_2^（i） of the L SD bases vectors for beam indices i = 0, 1,..., L-1 are identified by q1, q2, n1, n2, and represented by i 1,1 , i 1,2 .

[0112] The M v FD bases vectors are determined by M initial∈ {-2M v +1, -2M v +2,..., 0}, n 3,l = [n 3,l （0） ,..., n 3,l （M_v-1） ], n 3,l （f） are identified.

[0113] The element (FD basis) of the FD basis vector associated with the index t = 0, 1,..., N3-1, layer l = 1,..., v, of the precoding matrix (subband) is y t,l （f） = exp(j2πtn 3,l （f） / N3). Among the M v FD basis vectors, the FD basis vector associated with the index f = 0, 1,..., M v -1 of the FD basis vector is [y 0,l （f） , y 1,l （f） ,..., y N_3-1,l （f） ] T .

[0114] Each row of the matrix W 2,l represents the channel frequency response of a particular SD beam. In the case that the SD beams have high directivity, the channel taps of each beam are confined (the power delay profile becomes sparse in the time domain). As a result, the channel frequency response of each SD beam has high correlation (close to flat in the frequency domain). In this case, the channel frequency response can be approximated by a linear coupling of a small number of FD basis vectors. For example, in the case that M v = 2, the frequency response associated with the SD beam b0is approximated by d1 q f2+ and d2 0 f 0 using the FD basis vectors f2, f 0 and the LC coefficients d1 0 , d2 q .

[0115] The dominant M v FD basis vectors are selected. By setting M v ≪ N3, the overhead of W ~ l is considerably small compared to that of W 2,l . M vAll or part of the FD basis vectors are used for the approximate representation of the frequency response of each SD beam. A bitmap is used to report only the selected FD basis vectors for each SD beam. If the bitmap is not reported, all FD basis vectors are selected for each SD beam. In this case, the NZC of all FD basis vectors is reported for each SD beam. The number of NZC K l NZ ≤ K0= ceil(β × 2LM v ), the number of NZC K NZ ≤ 2K0= ceil(β × 2LM v ) across all layers. β is set by higher layer.

[0116] In the extended Type 2 codebook of Rel. 16, L, β, p v The values of (combination of codebook parameters, parameter combination) are determined by the higher layer parameter paramCombination-r16 (codebook combination setting).

[0117] Type 2 CSI feedback on PUSCH in Rel. 16 contains two parts. CSI part 1 has a fixed payload size, which is used for the discrimination of the number of information bits in CSI part 2. The size of part 2 is variable (UCI size depends on the number of NZC, which is unknown to the base station). The UE reports the number of NZC in CSI part 1, which determines the size of CSI part 2. After the base station receives CSI part 1, it identifies the size of CSI part 2.

[0118] In the extended Type 2 CSI feedback of Rel. 16, CSI part 1 contains RI (if reported), CQI, and an indicator of the total number of non-zero amplitude coefficients across multiple layers for the extended Type 2 CSI. RI (if reported), CQI, and the indicator of the total number of non-zero amplitude coefficients across multiple layers as fields of part 1 are separately encoded. CSI part 2 contains the PMI of the extended Type 2 CSI. Part 1 and 2 are separately encoded. CSI part 2 (PMI) contains at least one of the following: oversampling factor, index of SD (2D-DFT) basis, index M initial of the initial FD (DFT) basis vector (starting offset) of the selected DFT window, FD basis selected per layer, NZC (amplitude and phase) per layer, strongest coefficient indicator (SCI) per layer, and amplitude of the strongest coefficient per layer per polarization.

[0119] The multiple PMI indices (PMI values, codebook indices) associated with different CSI part 2 information can also follow the following for the l-th layer.

[0120] • i 1,1 : Two-dimensional oversampling factor [q1 q2]. q1 e {0, 1,..., O1-1}, q2 e {0, 1,..., O2-1}.

[0121] • i 1,2 : Multiple indices of SD 2D-DFT bases (SD beams). i 1,2 e {0, 1,..., C(N1N2, L)-1}.

[0122] • i 1,5 : Codebook indicator. Index of the selected FD DFT base of the DFT window. i 1,5 e {0, 1,..., 2M v -1}.

[0123] • i 1,6,l : Codebook indicator. Selected FD DFT base for the l-th layer. In the case of N3≤19, i 1,6,l e {0, 1,..., C(N3-1, M v -1)-1}. In the case of N3>19, i 1,6,l e {0, 1,..., C(2M v -1, M v -1)-1}.

[0124] • i 1,7,l : Bitmap indicator for the l-th layer. Non-zero bits within the bitmap identify i 2,4,l and which coefficients within i 2,5,l are reported. i 1,7,l = [k l,0 （3） ... k l,M_v-1 （3） ], k l,f （3） = [k l,0,f （3） ... k l,M_v-1,f （3） ], k l,i,f （3） e {0, 1}.

[0125] • i 1,8,l : Strongest coefficient indicator for the l-th layer (largest element k l,i,f （2） within the amplitude coefficient indicator).

[0126] • i2,3,l : Amplitude coefficient indicator of the (both polarized) coefficient (wideband) of the l-th layer.i 2,3,l = k l,0 （1） k l,1 （1） ].

[0127] • i 2,4,l : Amplitude coefficient indicator of the reported coefficient (subband) of the l-th layer.i 2,3,l = k l,0 （2） ... k l,M_v-1 （2） ].

[0128] • i 2,5,l : Phase coefficient indicator of the reported coefficient (subband) of the l-th layer.i 2,5,l = c l,0,f ... c l,M_v-1,f ].

[0129] Let f l * ∈ {0, 1,..., M v - 1} be the index of i 2,4,l , let k l * ∈ {0, 1,..., 2L-1} be the index of i l,f_l^* （2） . This f l * and i l * identify the strongest coefficient for layer l = 1,..., v, i.e., the element k 2,4,l of i l,i_l^*,f_l^* for layer l. The codebook index n （2） is remapped with respect to n 3,l 3,l （f_l^*） to n 3,l （f） = (n 3,l （f） - n 3,l （f_l^*） ) mod N3, after remapping becomes n 3,l （f_l^*） = 0. The index f is remapped with respect to f l * l * ) mod M v , after remapping becomes f l ​* =0 (l=1,...,v). i 2,4,l i 2,5,l and i 1,7,l These represent the remapped amplitude coefficient, phase coefficient, and bitmap, respectively. (Using i...) 1,8,l The strongest coefficient of layer l, identified by ∈{0,1,...,2L-1}, is provided as i for v=1. 1,8,l =Σ i=0 i_1^* k l,i,0 （3） -1, for 1 < v ≤ 4, is provided as i 1,8,l =i l * .

[0130] W ~ l The reported LC coefficients (complex coefficients) are the amplitude and phase of the separately quantized values.

[0131] - Amplitude quantization

[0132] Polarization-specific reference amplitude is used Figure 1 The table (amplitude coefficient indicator i) 2,3,l Mapping of elements within: Amplitude coefficient indicator element k l,p （1） To the amplitude coefficient p l,p （1） The 16-level quantization of the mapping. According to the table, p l （1） =[p l,0 （1） p l,1 （1） ] is quantized as [k l,0 （1） k l,1 （1） ]、k l,p （1） ∈{0,...,15}. All other coefficients are used... Figure 2 The table (amplitude coefficient indicator i) 2,4,l Mapping of elements within: Amplitude coefficient indicator element k l,i,f （2） To the amplitude coefficient p l,i,f （2） The mapping of p is quantized at level 8. According to the table, p l （2） =[p l,0 （2） ... p l,M_v-1 （2） ]、p l,f （2） =[pl,0,f （2） ... p l,2L-1.f （2） ] Quantized to k l,f （2） =[k l,0,f （2） ... k l,2L-1.f （2） ]、k l,i,f （2） ∈{0,...,7}.

[0133] - Phase quantization

[0134] Amplitude coefficient indicator i 2,5,l The elements within (amplitude coefficient indicator elements) [c l,0 ... c l,M_v-1 Reported via UE (using 4 bits). All phase coefficients are quantized using 16-PSK. The quantity φ used for phase matching. l,i,f =exp(j2πc l,i,f The phase coefficient in / 16) is quantized as c l,f =[c l,0,f ... c l,2L-1.f ]、c l,i,fi ∈{0,...,15}.

[0135] The amplitude coefficient indicator element k corresponding to the strongest coefficient of layer l l,floor（i_l^* / L） （1） =15 (maximum value), amplitude coefficient indicator element k l,i_l^*,0 （2） =7 (maximum value), phase coefficient indicator element c l,i_l^*,0 （2） =0 (minimum value). For l=1,...,v,k l,floor（i_l^* / L） （1） k l,i_l^*,0 （2） c l,i_l^*,0 （2） =0 is not reported.

[0136] i 1,5 and i 1,6,l This is the PMI index used in the FD DFT base report. Only when N3 > 19, i 1,5 Reported.

[0137] From using 3000 to 2999+P CSI-RS The matrix W represented by the codebook used in the CSI reports of layers v (=1 to 4) （v） For layer l (=1 to v), based on matrix W expressed by the following formula l .

[0138]

[0139] Here, the beam indices i = 0, 1,..., L - 1, m1 （i） = O1n1 （i） + q1, m2 （i） = O2n2 （i） + q2, n1 （i） ∈ {0, 1,..., N1-1}, n2 （i） ∈ {0, 1,..., N2-1}.v m_1^（i）,m_2^（i） denote the SD 2D-DFT bases, p l,0 （1） , p l,i,f （2） denote the amplitude coefficients, φ l,i,f denote the phase coefficients. Thus, the codebook for each layer contains the strongest coefficient per polarization, the amplitude coefficients per polarization per FD-DFT base per SD-DFT base, and the phase coefficients per polarization per FD-DFT base per SD-DFT base.

[0140] As the grouping of CSI part 2, for the provided CSI report, the PMI information is summarized into 3 groups (group 0 to 2). This is important in case of CSI omission. The indices i 2,4,l , i 2,5,l , i 1,7,l of the reported elements are associated with a certain priority rule. Group 0 to 2 follow the following.

[0141] • Group 0: The highest (upper) v2LM 1,1 , i 1,2 , i 1,8,l (l = 1,..., v)

[0142] • Group 1: The highest (upper) v2LM 1,5 , the highest (upper) ceil(K 1,6,l , i 1,7,l , the highest (upper) ceil(K v / 2) - v elements in i NZ , i 2,3,l , i 2,4,l , the highest (upper) ceil(K NZ / 2) - v elements in i 2,5,l , the highest (upper) ceil(K NZ / 2) - v elements in i (l = 1,..., v)

[0143] • Group 2: i 1,7,l the lowest (inferior) floor(K NZ / 2) priority elements in i 2,4,l the lowest (inferior) floor(K NZ / 2) priority elements in i 2,5,l the lowest (inferior) floor(K NZ / 2) priority elements (l = 1,..., v)

[0144] In Type 1 CSI, SD beam faces represented by SD DFT vectors are transmitted towards the UE. In Type 2 CSI, L SD beams are linearly coupled, transmitted towards the UE. Each SD beam can be associated with multiple FD beams. For the corresponding SD beam, the channel frequency response can be obtained by linear combination of their FD basis vectors. The channel frequency response corresponds to the power delay profile.

[0145] (Type 2 port selection codebook / extension (Rel. 16) / additional extension (Rel. 17))

[0146] - Type 2 port selection codebook

[0147] In Rel. 15 Type 2 port selection (PS) CSI (Type 2 PS codebook), the UE does not need to derive SD beams considering 2D-DFT as in Type 2 CSI. The base station considers a set of SD beams, transmits CSI-RS using K beamformed CSI-RS ports. The UE selects / identifies the best L (≤ K) CSI-RS ports per polarization, reports their indices within W1. Rel. 15 Type 2 PS CSI supports rank 1, 2.

[0148] - Extended Type 2 port selection codebook

[0149] The operation of Rel. 16 Type 2 PS CSI (enhanced Type 2 PS codebook) is the same as Rel. 16 Type 2 CSI except for the selection of SD beams. Rel. 15 Type 2 PS CSI supports rank 1 to 4.

[0150] For layer l e {1, 2, 3, 4}, the per-subband precoder is generated by

[0151] W l (N t x N3) = QW1W ~ l W f,lH (H1)

[0152] Here, Q (N t × K) represents K SD beams for CSI-RS beamforming. W1 (K x 2L) is a block diagonal matrix. W ~ l (2L x M) is an LC coefficient matrix. W f,l (N3 x M) is a matrix composed of M vectors (FD basis vectors), each vector containing N3 FD bases. K is set by higher layers. L is set by higher layers. P CSI-RS ∈ {4, 8, 12, 16, 24, 32}. In the case of P CSI-RS > 4, L ∈ {2, 3, 4}.

[0153] In Rel. 15 / 16 Type 2 PS CSI, each CSI-RS port #i is associated with an SD beam (b i ) (i = 1, 2, 3, 4). Figure 3A and Figure 3B ).

[0154] Rel. 16 Type 2 PS CSI is the same as Rel. 16 Type 2 CSI by reducing the number of FD basis vectors from N3 to M v (M v ≪ N3), thereby reducing the overhead compared to Rel. 15 Type 2 PS CSI.

[0155] - Additional extended Type 2 port selection codebook

[0156] In Rel. 17 Type 2 PS CSI / codebook (additional extended, further enhanced Type 2 PS codebook), each CSI-RS port #i is associated with an SD-FD beam pair (SD beam b i and FD beam f i,j of a pair (j is a frequency index)) instead of an SD beam (i = 1, 2, 3, 4). Figure 4A and Figure 4B In this example, ports 3 and 4 are associated with the same SD beam and different FD beams.

[0157] By delay pre-compensation, the frequency selectivity of the channel frequency response observed in the UE based on the SD beam-FD beam pair can be reduced compared to the frequency selectivity of the channel frequency response observed in the UE based on the SD beam.

[0158] The main scenario of Type 2 PS codebook of Rel. 17 is FDD. The channel reciprocity based on SRS measurement is not complete (the angle of the beam in UL can be different from the angle of the beam in DL, the UL frequency is different from the DL frequency in FDD, the antenna spacing effective in the UL and DL frequencies is different). However, the base station can obtain / select several partial information (dominant angle and delay (SD beam and FD beam)). In addition to the CSI report, SRS measurement in the base station is also used, whereby the base station can obtain the CSI for the decision of the DL MIMO precoder. In this case, in order to reduce the CSI overhead, several CSI reports can also be omitted.

[0159] Figure 5 An example of parameter combination for Rel. 16 Type 2 codebook is shown. L is the number of SD basis vectors. p v is a parameter for the calculation of the number of FD basis vectors for rank v v = ceil (p v x N3 / R). β is a parameter for the calculation of the maximum number of NZCs.

[0160] In the additionally extended Type 2 PS codebook of Rel. 17, the values of α, M, β (combination of codebook parameters, parameter combination) are decided by the higher layer parameter paramCombination-r17 (codebook parameter setting). Figure 6 An example of parameter combination for the additionally extended Type 2 PS codebook of Rel. 17 is shown. α is a parameter for the calculation of the number of selected CSI-RS ports within the PS codebook K1= αP CSI-RS . M is the number of FD basis vectors. β is a parameter for the calculation of the maximum number of NZCs. The precoding matrix represented by PMI is decided from L+M vectors. Here, L= K1 / 2, K1= αP CSI-RS .

[0161] In the additionally extended Type 2 PS CSI of Rel. 17, each CSI-RS port is beamformed using an SD beam and an FD basis vector. Each port is associated with an SD-FD pair.

[0162] For the provided layer l, information based on the following equation can also be reported by the UE.

[0163] W l (K x N3) = W1W ~ l W f,l H (H2)

[0164] For W1(Kx2L), each matrix block is composed of L columns of KxK identity matrix. The base station transmits K beamformed CSI-RS ports. Each port is associated with an SD-FD pair. The UE selects L out of K ports and reports them to the base station as part of PMI (W 1,l ). In addition, in Rel. 16, each port is associated with an SD beam.

[0165] W ~ l (2LxM v ) is a matrix composed of coupling coefficients (subband complex LC coefficients). The maximum number of reported NZCs is K0. The report consists of two parts: a bitmap that captures NZC positions, and quantized NZCs.

[0166] In Rel. 17, in the additional extension type 2 PS CSI, K l NZ =∑ i=0 k1-1 ∑ f=0 M-1 k l,i,f （3） ≤K0is the number of non-zero coefficients in layer l = 1,..., v, K NZ =∑ l=1 v K l NZ ≤2K0is the total number of non-zero coefficients. In the case where v≤2 and K NZ =K1Mv, i 1,7,l (the bitmap indicator for the l-th layer) is not reported. That is, the total number of reported NZCs is equal to the maximum number of K1Mv, and in the case where v≤2, the reporting of the bitmap indicating the positions of NZCs is omitted. In addition, in Rel. 16, the bitmap of NZC positions is always reported.

[0167] W f,l (N3xM v ) is a matrix composed of M v (M v =1 or 2) FD basis vectors for each layer. Each vector contains N3 FD bases (FD-DFT bases). The base station can also delete W f,l . In the case where M v =1, W f,l is OFF, and the additional FD basis vector is not reported. In the case where M v =2, W f,l is ON, and M vOne additional FD basis vector is reported. In M v =2, the window size N of the FD basis is set by a higher layer parameter (valueOfN) in {2,4}. In addition, in Rel. 16, W f,l is always reported.

[0168] (CSI-RS resource and CSI report setting)

[0169] As shown in the example of Figure 7 The relationship between the CSI-RS resource and the CSI report is set by the CSI measurement setting (CSI-MeasConfig) set per cell, the CSI resource setting (CSI-ResourceConfig) set per BWP, and the CSI report setting (CSI-ReportConfig).

[0170] The CSI-MeasConfig contains at least one of the setting of the non-zero power (NZP) CSI-RS resource nzp-CSI-RS-Resource, the setting of the NZP-CSI-RS resource set nzp-CSI-RS-ResourceSet, the setting of the CSI-Interference Measurement (IM) resource csi-IM-Resource, the setting of the CSI-IM resource set csi-IM-ResourceSet, the setting of the CSI SSB resource set csi-SSB-ResourceSet, the CSI resource setting CSI-ResouceConfig, and the CSI report setting CSI-ReportConfig.

[0171] The CSI-ResouceConfig contains at least one of the nzp-CSI-RS-ResourceSet, the csi-SSB-ResourceSet, the csi-IM-ResourceSet, and the resource type resourceType (Periodic (P) / Semi-Persistent (SP) / Aperiodic (A)).

[0172] The CSI-ReportConfig contains at least one of the resource setting ID resourceConfigId, the report setting type reportConfigType (P / SP / A), the reporting quantity, the frequency domain setting, the time restriction of each of the channel measurement / interference measurement, the group-based beam report, the CQI table, the subband size, and the non-PMI port indication.

[0173] (CSI reference resource)

[0174] The CSI reference resource for the serving cell is defined as follows.

[0175] - In frequency domain, the CSI reference resource is defined by a set of multiple DL PRBs corresponding to the band domain associated with the derived CSI.

[0176] - In time domain, the CSI reference resource is defined by a single DL slot n CSI_ref -K offset ·2 μ_DL / 2 μ_Koffset Here, K offset is a parameter set by higher layer, μ_K offset is a subcarrier spacing setting for K offset , with 0 value in FR1. μ_DL is a subcarrier spacing setting for DL.

[0177] - In P / SP-CSI reporting, in case a single CSI-RS / SSB for channel measurement is set, n CSI_ref is the minimum of 4·2 μ_DL above such that it corresponds to an effective DL slot. In case multiple CSI-RS / SSB for channel measurement is set, n CSI_ref is the minimum of 5·2 μ_DL above such that it corresponds to an effective DL slot.

[0178] - In AP-CSI reporting, in case the UE is indicated by DCI to report CSI in the same slot as the CSI request, n CSI_ref is such that the reference resource is located within the same effective DL slot as the corresponding CSI request, otherwise, n CSI_ref is the slot n CSI_ref corresponding to an effective DL slot, the minimum of floor(Z' / N symb slot ) above. Here, Z' corresponds to the delay requirement. N symb slot is the number of symbols within a slot.

[0179] - In case P or SP CSI-RS / CSI-IM or SSB is used for measurement of channel / interference, the UE is not expected to measure the channel / interference related to the CSI-RS / CSI-IM / SSB whose last OFDM symbol is received before Z' symbols before the transmission time instant of the first OFDM symbol of the AP-CSI report.

[0180] A slot within a serving cell contains at least DL or flexible symbols set by higher layer, which is considered as an effective DL slot in case the slot is not within a measurement gap set for the UE.

[0181] (UE CSI computation time)

[0182] In case of CSI request field on DCI triggering CSI reporting on PUSCH, the UE provides valid CSI report for the nth triggered report if the following conditions are fulfilled:

[0183] - The first uplink symbol containing the effect of timing advance for the corresponding one or more CSI reports is not earlier than symbol Z ref starting (at symbol Z ref and

[0184] - The first uplink symbol containing the effect of timing advance for the nth CSI report is not earlier than symbol Z' ref starting (at symbol Z' ref (n) starting (at symbol Z' ref (n) after).

[0185] Z proc,CSI is the next uplink symbol after the end of the last symbol of the PDCCH triggering the one or more CSI reports, whose cyclic prefix (CP) is defined as in T -μ = (Z)(2048 + 144) · K2 C · T switch starting symbol. In case of A-CSI-RS for channel measurement for the nth triggered CSI report, Z' ref is the next uplink symbol after the end of the last symbol of the latest time among the following times, whose CP is defined as in T' proc,CSI = (Z')(2048 + 144) · K2 -μ · T C starting symbol:

[0186] - A-CSI-RS resource for channel measurement,

[0187] - A-CSI-IM for interference measurement, and

[0188] - A-NZP-CSI-RS for channel measurement.

[0189] T switch is defined in the specification, only in case of Z1 is applied.

[0190] (Doppler CSI)

[0191] Extension / capability improvement of CSI reporting for UEs moving at high / medium speed using time-domain correlation / Doppler-domain (DD) information is being studied. For example, improvement of Rel. 16 / 17 Type 2 codebook without changing the spatial domain basis and the frequency domain basis is being studied, and time domain channel properties (TDCP) measured via tracking CSI-RS (TRS) are reported from the UE.

[0192] Channel coherent time (CCT) depends on the maximum Doppler shift. The channel coherent time is the time during which the measured channel properties can be used, or the time until the measured channel properties cannot be used (channel aging). The maximum Doppler shift is estimated from the relative speed between the transmitter and the receiver. The channel coherent time T c is approximated by 1 / Δf max Here, Δf max = v / λ. If the moving speed of the UE becomes high, the channel coherent time becomes short. For example, in a carrier frequency of 4.5 GHz, if the moving speed exceeds about 25 km / h, the channel coherent time is less than 10 ms. For such a high moving speed and short channel coherent time, how to cope becomes a problem.

[0193] TRS is supported in order to follow the Doppler shift. However, there are the following problems in TRS.

[0194] • The number of ports per CSI-RS resource set is limited to only 1. Each CSI-RS resource uses a single port.

[0195] • The period that can be set is 10 ms or more.

[0196] • CSI reporting for TRS is not assumed. There is no report setting for P-TRS. Although the report can be set, the report quantity (reportQuantity) is only set to none ('none'). A maximum of 16 CSI-RS resources are used per CSI-RS resource set.

[0197] TRS is configured in the resources of the time domain and the frequency domain. In order to measure based on the influence of the Doppler shift, multiple RSs within the time domain are required within a specific frequency domain resource.

[0198] Consideration is being given to using CMR in measurement based on the influence of the Doppler shift. However, the RSs for measurement depend on the actual implementation of the UE.

[0199] In the amount of CSI reporting, information related to Doppler shift is not supported. Information for decision of W = W1W2 is reported by the UE via the CSI codebook (PMI). Here, W1 is a wideband property, which indicates a spatial beam. W2 is a subband property, which indicates a coefficient of amplitude / phase for each spatial beam.

[0200] As for measurement related to Doppler shift, consider case 1 where the UE measures based on CSI-RS and case 2 where the base station measures based on SRS. As for determination of influence related to Doppler shift, consider case 1-1 where the UE determines based on CSI-RS measurement results, and case 1-2 where the base station determines based on CSI-RS measurement results reported by the UE, and case 2-1 where the base station determines based on SRS measurement results.

[0201] A CSI-RS measurement window and a CSI reporting window are under study. Within the CSI-RS measurement window, it is also possible to measure more than one CSI-RS occasion. The reported CSI can also be associated with the CSI reporting window.

[0202] It is also possible that, assuming CSI reporting within slot n, the length of the basis vector of the Doppler domain (DD) / time domain (TD) (the number of bases of DD / TD) is set to N4. Within the CSI measurement window of slot [k, k+W meas -1], it is also possible to measure more than one CSI occasion for calculation of CSI reporting. Here, k can also be a slot index, W meas The measurement window length (number of slots) can also be. The CSI occasion can also be set within the CSI-ReportConfig. The CSI reporting window of slot [l, l+W CSI -1] can also be associated with CSI reporting within slot n. Here, l can also be a slot index, W CSI The reporting window length (number of slots) can also be. The position of the CSI reference resource can also be expressed as n ref .

[0203] The duration W CSI of the CSI reporting window can also be dN4. d and N4 are determined by CMR setting. The starting point of the CSI reporting window is slot l. It is also possible that l = (n - N CSI,ref ). It is also possible that l = (n + δ). It is also possible that δ = {0, 2}, and it is also possible that δ = {0, 1, 2}.

[0204] The d slots can also be the duration in the DD unit.

[0205] In case of UE-side prediction is assumed, the UE is supported to predict CSI / channel for time slots after time slot l, the position of time slot l (from multiple candidate values) is set by the base station via higher layer signaling. Multiple candidates of the position of time slot l include the existing CSI reference resource positions (n-N CSI,ref ) and (n+δ). Here, δ>0. The existing CSI reference resource in the existing action, i.e., (n-N CSI,ref ) is reused to represent the position of the last CSI-RS occasion used in the CSI reporting.

[0206] Regarding the parameter δ, the additional value 2 is supported.

[0207] N4 is set by the base station via higher layer signaling.

[0208] In case of N4=1, the DD bases can also be the same (identity, identical). There can also be no DD compression. The codebook structure in this case can also be, for example, the following.

[0209]

[0210] In case of N4>1, the Doppler domain orthogonal DFT bases can also be commonly selected for all SD / FD bases. The codebook structure in this case can also be, for example, the following.

[0211]

[0212] Only Q>1 representing the number of selected Doppler domain (DD) basis vectors is allowed. The details of the SD / FD bases containing the associated UCI parameters follow the existing specifications.

[0213] - Timing of measurement / reporting

[0214] Figure 8 An example of the timing of measurement / reporting of Doppler CSI. The CSI reporting (based on CMR measurement and CSI prediction) in time slot n contains CSI information within the CSI reporting window. The CSI reporting window of case 1 after multiple CMRs spans W CSI,ref slots from time slot (n-N CSI ). Time slot (n-N CSI,ref ) can also be referred to as the CSI reference time slot. The CSI reporting is made in time slot n after the CSI reporting window of case 1. The CSI reporting window of case 2 after the CSI reporting spans W CSI slots from time slot (n+δ).

[0215] Figure 9An example of timing of measurement / reporting of Rel.17 Type 2 CSI. The CSI is calculated in the CSI reference slot (n-N CSI,ref ) after the CMR, and the CSI reporting is done in the slot n after that.

[0216] - CMR configuration

[0217] For CMR for Doppler CSI, the following types / structures of CSI-RS resources are being studied to be supported.

[0218] • Time domain behaviour for NZP CSI-RS resources: periodic (P), semi-persistent (SP), aperiodic (AP).

[0219] • K>1 NZP CSI-RS resources within the same CSI-RS resource set for AP-CSI-RS based channel measurement. The K NZP CSI-RS resources can also be received via a single triggering instance. The spacing between two consecutive AP-CSI-RS resources can also be m slots. Only one NZP CSI-RS resource for P-CSI-RS based channel measurement or SP-CSI-RS based channel measurement can also be supported.

[0220] Regarding the parameter d within multiple slots, in the case where the configured CMR is AP-CSI-RS, the candidate values of d can also be the configured values of the m parameter. In the case where more than one candidate value of d is supported, the value of d is configured by the base station via higher layer (RRC) signaling.

[0221] For AP-CMR, there can also be K>1 NZP CSI-RS resources within the same CSI-RS resource set. It can also be that K={4,8,12}. The K>1 NZP CSI-RS resources can also be associated with a single triggering instance. The spacing between two consecutive AP-CSI-RS resources can also be m slots. It can also be that m={1,2}. For AP-CMR, the factor d used to determine the CSI reporting window can also be m or 1.

[0222] For P / SP-CMR, there can only be one NZP CSI-RS resource within the P / SP-CSI-RS set. For P / SP-CMR, the factor d used to determine the CSI reporting window can also be equal to the periodicity.

[0223] - UCI

[0224] For the improvement of Type 2 CSI codebook for medium / high speed, it is under study to support only CSI reporting on PUSCH. Following the existing specification, both aperiodic and semi-persistent CSI reporting on PUSCH can also be supported.

[0225] The CSI report can also include at least one of the following multiple UCI parameters.

[0226] -- NZC number. It can also be included in CSI part 1. RI ∈ {1,..., R MAX} and K NZ,TOT The total number of NZC (summed over all layers and all DD basis selected according to Q) can also be reported within UCI part 1.

[0227] -- Wideband CQI. It can also be included in CSI part 1. It can also be the same as Rel. 15.

[0228] -- Subband CQI. It can also be included in CSI part 1. It can also be the same as Rel. 15.

[0229] -- Per-layer Q bitmap. It can also be included in CSI part 2.

[0230] -- SCI. It can also be included in CSI part 2. For RI = 1, it can also be ceil (log2 K NZ ) bit indicator for SCI (l*, m*, d*). An indicator for RI > 1 can also be specified.

[0231] -- SD basis subset selection indicator. It can also be included in CSI part 2. It can also be ceil (C (N1N2, L)) bit indicator. Details follow Rel. 15.

[0232] -- FD basis subset selection indicator. It can also be included in CSI part 2. It can also follow Rel. 15.

[0233] -- DD basis subset selection indicator. It can also be included in CSI part 2. For N4 > 2 and Q = 2, the selection of Q from N4 DD basis vectors can also be indicated by ceil (log2 (N4-1)) bit indicator.

[0234] -- LC coefficients: phase. It can also be included in CSI part 2. It can also be quantized independently across multiple layers.

[0235] -- LC coefficients: amplitudes. It can also be included in CSI part 2. For N4>1, it can also follow Rel. 16. It can also be quantized independently across multiple layers. It can also include a reference amplitude for the weaker polarization for each layer.

[0236] -- SD oversampling (rotation) factors q1, q2. It can also be included in CSI part 2. The values of q1, q2 can also follow Rel. 15.

[0237] Time domain relationship between CMR and reporting

[0238] Before Rel. 17, the slot offset from PDCCH to AP-CSI-RS is set by aperiodicTriggerOffset from {0, 1, 2, 3, 4, 16, 24}. AP-CSI-RS (for CSI measurement and reporting) consumes 1 slot.

[0239] Before Rel. 17, the slot offset from PDCCH to PUSCH carrying CSI report is set by K2 (higher layer parameter k2) from {0,..., 32}.

[0240] In Rel. 18, the slot offset from PDCCH to AP-CSI-RS can also be set by aperiodicTriggerOffset from {0, 1, 2, 3, 4, 16, 24}. AP-CSI-RS (for CSI measurement and reporting) consumes K slots. There can also be an interval of m slots.

[0241] In Rel. 18, the slot offset from PDCCH to PUSCH carrying CSI report can also be set by K2 (higher layer parameter k2) from {0,..., 32}.

[0242] The UE capability multiPUSCH-UL-grant-r16 in Rel. 16 for multi-PUSCH scheduling mainly envisions operation in (unlicensed band, NR-unlicensed (U) that requires shared spectrum channel access, shared spectrum channel access) with shared spectrum channel access, but based on the definition of the corresponding UE capability, it can also be used for operation in (licensed band, that does not require shared spectrum channel access) without shared spectrum channel access.

[0243] In case of multi-PUSCH scheduling, the AP-CSI report is multiplexed on (carried on) the PUSCH. In case the number of PUSCHs (configurations, allocations) is equal to 2, the AP-CSI report is carried on the second scheduled PUSCH. In case the number of PUSCHs (configurations, allocations) is more than 2, the AP-CSI report is carried on the second (penultimate, the second last) scheduled PUSCH from the last.

[0244] (Analysis #1)

[0245] In Rel. 15, the slot offset from PDCCH to PUSCH is decided from 0 to 32. The PUSCH carrying the AP-CSI report can also be configured in an earlier slot than one or more CMRs associated with the CSI report, depending on at least one of several parameters.

[0246] - Offset #1: Slot offset between PDCCH and (first) AP-CSI-RS resource.

[0247] - Offset #2: Slot offset between PDCCH and PUSCH carrying the CSI report.

[0248] Figure 10 An example of offset #1 and offset #2 is shown. The PDCCH can also trigger the AP-CSI-RS resource and the AP-CSI report on the PUSCH. For example, in case offset #1 is large, the range of possible values of offset #2 is limited.

[0249] In the present disclosure, the case where the PUSCH carrying the AP-CSI report is scheduled earlier than one or more CMRs associated with the CSI report can also be referred to as Case X.

[0250] In this way, the time relationship between the CSI-RS resource and the PUSCH carrying the CSI report has not been sufficiently studied. If the time relationship is not clear, there is a concern that it will lead to a decrease in throughput / communication quality, etc.

[0251] (Analysis #2)

[0252] As described above, in Rel. 16, multi-PUSCH scheduling is specified. In a case where the number of PUSCHs (configurations, allocations) is equal to 2, an AP-CSI report is carried on the second scheduled PUSCH. In a case where the number of PUSCHs (configurations, allocations) is more than 2, an AP-CSI report is carried on the second (penultimate, the second last) scheduled PUSCH from the last.

[0253] In a case where multi-PUSCH scheduling and Type 2 CSI for Doppler are specified with the setting of the start position and the length of a CSI reporting window, a UE needs to predict CSI for a longer duration after an actual CSI-RS resource being measured.

[0254] Thus, the relationship between the setting of multi-PUSCH scheduling and the setting of Type 2 CSI for Doppler is not sufficiently studied. If such a relationship is not clear, there is a concern that throughput / communication quality is reduced, and the like.

[0255] Therefore, the inventors of the present disclosure conceived of a method for the setting / reporting of CSI for Doppler.

[0256] Hereinafter, embodiments related to the present disclosure will be described in detail with reference to the accompanying drawings. In addition, each of the following embodiments (for example, each case) can be used individually, or at least two of them can be combined and applied.

[0257] In the present disclosure, "A / B" and "at least one of A and B" can be interchangeable with each other. In addition, in the present disclosure, "A / B / C" can mean "at least one of A, B, and C".

[0258] In the present disclosure, "notification", "activation", "deactivation", "indication (or indicate)", "selection (select)", "configuration", "update", "determination (determine)", and the like can be interchangeable with each other. In the present disclosure, "support", "control", "controllable", "operation", "operable", and the like can be interchangeable with each other.

[0259] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, fields, Information Elements (IEs), configurations, and the like can be interchangeable with each other. In the present disclosure, Medium Access Control Control Element (MAC Control Element (CE)), update commands, activation / deactivation commands, and the like can be interchangeable with each other.

[0260] In the present disclosure, higher layer signaling can be, for example, any one of or a combination of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, other messages (e.g., a protocol for positioning (e.g., NR Positioning Protocol A (NRPPa) / LTE Positioning Protocol (LPP)) message, and the like from a core network), and the like.

[0261] In the present disclosure, MAC signaling can be, for example, using a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), and the like. Broadcast information can be, for example, a Master Information Block (MIB), a System Information Block (SIB), minimum system information (Remaining Minimum System Information (RMSI)), Other System Information (OSI), and the like.

[0262] In the present disclosure, physical layer signaling can be, for example, Downlink Control Information (DCI), Uplink Control Information (UCI), and the like.

[0263] In the present disclosure, a b c , a_b^c can be interchangeable with each other. In the present disclosure, a b , a_b can be interchangeable with each other. In the present disclosure, a c, a^c can also be interchangeable with each other. In the present disclosure, ceil(x), ceiling function, ceiling function can also be interchangeable with each other. In the present disclosure, floor(x), floor function, floor function can also be interchangeable with each other.

[0264] In the present disclosure, base, DFT base, base vector, DFT base vector can also be interchangeable with each other. In the present disclosure, SD base, SD-DFT base, beam, SD beam, SD 2D-DFT vector, SD base vector, beam index, i can also be interchangeable with each other. In the present disclosure, L, L n , SD beam number, beam number, SD 2D-DFT vector number can also be interchangeable with each other. In the present disclosure, FD base, FD-DFT base, FD beam, FD base vector, FD-DFT base vector, FD base vector index, f can also be interchangeable with each other.

[0265] In the present disclosure, CSI, codebook, PMI can also be interchangeable with each other.

[0266] In the present disclosure, type 2 Doppler CSI, at least one of extended type 2 CSI (Rel. 16) and additional extended type 2 PSCSI (Rel. 17) based Doppler CSI can also be interchangeable with each other.

[0267] In the present disclosure, NZP CSI-RS resource set, CSI-RS resource set, CSI resource setting, NZP CSI-RS resource set for channel measurement can also be interchangeable with each other. In each embodiment, CMR, NZP CSI-RS resource, CSI-RS resource, CSI-RS occasion can also be interchangeable with each other.

[0268] In the present disclosure, N4, length of DD DFT base, length of DD DFT base vector can also be interchangeable with each other. In the present disclosure, Q, number of DD DFT bases, number of DD DFT base vectors can also be interchangeable with each other. In the present disclosure, d, duration of DD unit [slot], number of slots of DD unit, factor for determining CSI reporting window can also be interchangeable with each other. In the present disclosure, m, interval [slot] between two consecutive AP-CSI-RS resources, number of slots between two consecutive AP-CSI-RS resources can also be interchangeable with each other.

[0269] (Wireless communication method)

[0270] The UE can also receive a configuration of a CSI report for Doppler. The UE can also control the CSI report in at least one of a first case (e.g., Case X) in which a CSI-RS resource for the CSI report is earlier than the CSI report, and a second case (e.g., Case in which Multi-PUSCH scheduling and Doppler Type 2 CSI configuration are configured at the same time) in which a plurality of uplink shared channels scheduled by one downlink control information is configured.

[0271] Embodiment #1

[0272] This embodiment relates to a case in which Case X of Analysis #1 does not occur.

[0273] It can also be specified that the UE is not expected to be scheduled such a restriction (Case X) of A-CSI-RS transmission (resource) and PUSCH transmission. The restriction can also be that the UE controls the CSI report on the premise that Case X does not occur. For the restriction related to this scheduling, the restriction can be applied to both A-CSI reporting on PUSCH and Doppler A-CSI reporting on PUSCH. According to the restriction, there is no need for an additional rule for deciding which A-CSI-RS transmission is considered for CSI reporting.

[0274] - Option 1

[0275] The CSI report type (codebook) to which Embodiment #1 is applied can also be at least one of several options below.

[0276] -- Option 1-1: Rel. 18 extended Type 2 for Doppler.

[0277] For the identification of the CSI report type, the configuration of N4, Q, d, m, etc. can also be considered.

[0278] -- Option 1-2: Rel. 16 Type 2.

[0279] -- Option 1-3: Rel. 16 Type 2 PS.

[0280] -- Option 1-4: Rel. 17 Type 2 PS.

[0281] -- Option 1-5: Other CSI report types.

[0282] - Option 2

[0283] The parameter to which the restriction is applied can also be at least one of several options below.

[0284] -- Option 2-1: Time slot offset between PDCCH and A-CSI-RS transmission.

[0285] The A-CSI-RS transmission can also be one of the earliest among the multiple A-CSI-RS transmissions triggered. The existing RRC parameter aperiodicTriggeringOffset or a new RRC parameter can also be considered for identifying the slot offset.

[0286] Option 2-2: The slot offset between the PDCCH and the PUSCH carrying the A-CSI report corresponding to it.

[0287] The existing RRC parameter k2, or a new RRC parameter, or a combination of existing / new RRC parameter and existing / new DCI indication can also be considered for identifying the slot offset.

[0288] Option 2-3: The slot offset between the PDCCH and the PUSCH carrying the A-CSI report corresponding to it.

[0289] The A-CSI-RS transmission can also be one of the earliest / latest among the multiple A-CSI-RS transmissions triggered.

[0290] Examples of Option 2

[0291] Examples of Option 2-1

[0292] The configurable value for the slot offset between the PDCCH and the A-CSI-RS transmission is limited, which can also be below a threshold (may also be less than the threshold). The threshold can be (1) defined in the specification, (2) configured by RRC IE, (3) indicated by MAC CE / DCI, or a combination of more than two of (1) to (3). The threshold can also be related to Z' ref The requirement of the symbols is equal.

[0293] Examples of Option 2-2

[0294] The configurable value for the slot offset between the PDCCH and the PUSCH carrying the A-CSI report corresponding to it is limited, which can also be below a threshold (may also be less than the threshold). The threshold can be (1) defined in the specification, (2) configured by RRC IE, (3) indicated by MAC CE / DCI, or a combination of more than two of (1) to (3).

[0295] Examples of Option 2-3

[0296] The time-domain configuration relationship between the PDCCH and the PUSCH carrying the A-CSI report corresponding to it is limited, which can also satisfy Z'ref Requirement of symbols.

[0297] According to this embodiment, the UE does not need a rule for the case X, and thus the processing / complexity of the UE can be suppressed.

[0298] Embodiment #2

[0299] This embodiment relates to the case where the case X of the analysis #1 occurs.

[0300] It can also be expected that the UE is scheduled to occur the (case X) A-CSI-RS transmission (resource) and the PUSCH transmission like the case X. According to this operation, the setting of at least one of the A-CSI-RS occasion and the scheduling of the PUSCH carrying the A-CSI report becomes more flexible.

[0301] Figure 11 An example of the occurrence of the case X is shown. In this example, the PUSCH carrying the A-CSI report is scheduled earlier than one or more CMRs associated with this CSI report.

[0302] - Option 1

[0303] The rule related to the identification of the A-CSI-RS resource for the A-CSI report can also follow at least one of several options below.

[0304] -- Option 1-1

[0305] The rule can also not be specified. The identification of the A-CSI-RS resource for the A-CSI report can also depend on the UE implementation.

[0306] -- Option 1-2

[0307] The A-CSI report can also be generated based on a specific A-CSI-RS resource. The A-CSI-RS resource can also be decided based on at least one of several conditions below.

[0308] --- (1) Z' ref Requirement of symbols. For example, the specific A-CSI-RS resource is a time interval between the PUSCH carrying the A-CSI report and the Z' ref symbols (longer than Z' ref symbols) A-CSI-RS resource.

[0309] --- (2) The time interval between the specific A-CSI-RS resource and the A-CSI report is above (longer than) a new threshold value.

[0310] According to this embodiment, even in the case where the situation X occurs, the UE can appropriately decide the time-domain relationship between the A-CSI-RS occasion and the PUSCH carrying the A-CSI report.

[0311] Embodiment #3

[0312] This embodiment relates to Analysis #2.

[0313] As for the simultaneous configuration of multi-PUSCH scheduling and Doppler-aided Type 2 CSI, at least one of several options below can be specified.

[0314] - Option 1

[0315] The simultaneous configuration can also be disallowed. For example, it can be specified in the specification that a UE is not expected to be simultaneously configured with multi-PUSCH scheduling and Doppler-aided Type 2 CSI. For example, it can be specified in the specification that a UE is not expected to be instructed to multiplex Doppler-aided Type 2 CSI-based CSI on one of the multiple PUSCHs scheduled by a DCI.

[0316] - Option 2

[0317] The simultaneous configuration can also be allowed without impact on the specification.

[0318] - Option 3

[0319] The simultaneous configuration can also be allowed subject to at least one of several options below.

[0320] -- Option 1

[0321] In the case where more than two PUSCHs are scheduled, the one PUSCH within the multiple PUSCHs scheduled by a DCI on which CSI is multiplexed is not the second from the last.

[0322] -- Option 2

[0323] In the case where two PUSCHs are scheduled, the one PUSCH within the multiple PUSCHs scheduled by a DCI on which CSI is multiplexed is not the second PUSCH.

[0324] Figure 12 An example of the simultaneous configuration of multi-PUSCH scheduling and Doppler-aided Type 2 CSI is shown. In this example, CSI is multiplexed on the first of the two PUSCHs scheduled by a DCI.

[0325] -- Option 3

[0326] The simultaneous setting can also be allowed only in a case where the number of the plurality of PUSCHs scheduled by the DCI is equal to or smaller than (less than) a certain value. The certain value (1) can be defined in the specification, (2) can be set by the RRC IE, (3) can be indicated by the MAC CE / DCI, or can be a combination of two or more of (1) to (3).

[0327] -- Example of Option 3

[0328] --- Example 1

[0329] In the case of the simultaneous setting, the CSI can also be multiplexed on (can also be carried by) the last scheduled PUSCH.

[0330] --- Example 2

[0331] In the case of the simultaneous setting, in a case where at most two PUSCHs are scheduled by the DCI, the CSI can also be multiplexed on (can also be carried by) at least one of them.

[0332] According to the embodiment, the UE can appropriately set at least one of the multi-PUSCH scheduling and the Doppler Type 2 CSI.

[0333] <Supplement>

[0334] [Notification of information to the UE]

[0335] The notification of any of the information in the above-described embodiments from the network (Network (NW)) (for example, a base station (Base Station (BS))) to the UE (in other words, the reception of any of the information from the BS in the UE) can also be performed using physical layer signaling (for example, DCI), higher layer signaling (for example, RRC signaling, MAC CE), a specific signal / channel (for example, PDCCH, PDSCH, reference signal), or a combination thereof.

[0336] In a case where the above-described notification is performed by the MAC CE, the MAC CE can also be identified by being included in the MAC subheader by a new logical channel ID (Logical Channel ID (LCID)) that is not specified in the existing standard.

[0337] In a case where the above notification is made through the DCI, the above notification can also be made through a specific field of the DCI, a Radio Network Temporary Identifier (RNTI) used in scrambling of cyclic redundancy check (CRC) bits assigned in the DCI, a format of the DCI, and the like.

[0338] Further, the notification of any information from the UE in the above-described embodiments can be made periodically, semi-persistently, or aperiodically.

[0339] [Notification of information from UE]

[0340] The notification of any information from the UE (in other words, transmission / reporting of any information to the BS in the UE) in the above-described embodiments can also be made using physical layer signaling (for example, UCI), higher layer signaling (for example, RRC signaling, MAC CE), a specific signal / channel (for example, PUCCH, PUSCH, PRACH, reference signal), or a combination thereof.

[0341] In a case where the above notification is made through the MAC CE, the MAC CE can also be identified by being included in a MAC subheader through a new LCID not specified in the existing standard.

[0342] In a case where the above notification is made through the UCI, the above notification can also be transmitted using the PUCCH or the PUSCH.

[0343] Further, the notification of any information from the UE in the above-described embodiments can be made periodically, semi-persistently, or aperiodically.

[0344] [Application with respect to each embodiment]

[0345] At least one of the above-described embodiments can also be applied in a case where a specific condition is satisfied. The specific condition can be specified in the standard or can be notified to the UE / BS using higher layer signaling / physical layer signaling.

[0346] The higher layer signaling can also be a new RRC parameter (IE). In Rel.YY (for example, YY is 18 or more), a new RRC parameter related to the function XXX can also be expressed as XXX_rYY (XXX-rYY).

[0347] At least one of the above-described embodiments can also be applied only to a UE that reports or supports a specific UE capability.

[0348] The specific UE capability can also represent at least one of the following:

[0349] • Support specific processing / operation / control / information for at least one of the above embodiments.

[0350] • The UE supports Type 2 CSI with Doppler.

[0351] • In the case where the UE supports Type 2 CSI with Doppler, the UE supports the restriction in Embodiment #1.

[0352] • In the case where the UE supports Type 2 CSI with Doppler, the UE supports A-CSI-RS resource identification in Embodiment #2.

[0353] • In the case where the UE supports Type 2 CSI with Doppler and supports multiple PUSCH scheduling, the UE supports the restriction in Embodiment #3.

[0354] In addition, the above specific UE capability can be a capability applied throughout all frequencies (commonly regardless of the frequency), a capability per frequency (e.g., one or a combination of a cell, a band, a band combination, a BWP, a component carrier, etc.), a capability per frequency range (e.g., Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), a capability per SubCarrier Spacing (SCS), or a capability per Feature Set (FS) or Feature Set Per Component-carrier (FSPC).

[0355] In addition, the above specific UE capability can be a capability applied throughout all duplex modes (commonly regardless of the duplex mode), or a capability per duplex mode (e.g., Time Division Duplex (TDD), Frequency Division Duplex (FDD)).

[0356] In addition, at least one of the above embodiments can also be applied in the case where the UE is configured / activated / triggered by higher layer signaling / physical layer signaling with specific information associated with the above embodiments (or implements the operation of the above embodiments). For example, the specific information can also be information indicating activation of the operation of the above embodiments, any RRC parameter for a specific version (e.g., Rel. 18 / 19), etc.

[0357] The UE can also apply, for example, Rel. 15 / 16 operation without supporting at least one of the above-described specific UE capabilities or without being configured with the above-described specific information.

[0358] (PARAGRAPH)

[0359] With regard to an embodiment of the present disclosure, the invention noted below is appended.

[0360] [PARAGRAPH 1]

[0361] A terminal has:

[0362] a reception unit that receives a configuration of a channel state information (CSI) report for Doppler; and

[0363] a control unit that identifies whether or not a situation in which a CSI-reference signal (RS) resource for the CSI report occurs earlier than the CSI report.

[0364] [PARAGRAPH 2]

[0365] The terminal described in PARAGRAPH 1,

[0366] the control unit controls the CSI report using a specific codebook on the premise that the situation does not occur.

[0367] [PARAGRAPH 3]

[0368] The terminal described in PARAGRAPH 1 or PARAGRAPH 2,

[0369] the control unit controls the CSI report,

[0370] the configuration indicates at least one of a time interval from a downlink control channel that triggers the CSI report to the CSI-RS resource and a time interval from the downlink control channel to an uplink shared channel that carries the CSI report.

[0371] [PARAGRAPH 4]

[0372] The terminal described in any one of PARAGRAPHS 1 to 3,

[0373] the control unit controls the CSI report without the situation occurring,

[0374] a time interval between the CSI-RS resource and an uplink shared channel that carries the CSI report satisfies a condition.

[0375] (PARAGRAPH)

[0376] With regard to an embodiment of the present disclosure, the invention noted below is appended.

[0377] [Para 1]

[0378] A terminal has:

[0379] a reception unit that receives a setting of a channel state information (CSI) report for Doppler; and

[0380] a control unit that identifies whether or not a situation in which a plurality of uplink shared channels scheduled by one downlink control information is set occurs.

[0381] [Para 2]

[0382] the terminal according to Para 1,

[0383] the control unit controls the CSI report on a premise that the situation does not occur.

[0384] [Para 3]

[0385] the terminal according to Para 1 or 2,

[0386] the control unit controls the CSI report in a case where the situation occurs.

[0387] [Para 4]

[0388] the terminal according to any one of Para 1 to 3,

[0389] in a case where the situation occurs, limits at least one of a number of the plurality of uplink shared channels and one uplink shared channel within the plurality of uplink shared channels that carries the CSI report.

[0390] (Wireless communication system)

[0391] Hereinafter, a structure of a wireless communication system to which an embodiment of the present disclosure relates will be described. In the wireless communication system, any one of the wireless communication methods according to the above-described embodiments of the present disclosure or a combination thereof is used to perform communication.

[0392] Figure 13 is a diagram illustrating an example of a schematic structure of a wireless communication system to which an embodiment relates. The wireless communication system 1 (may be simply referred to as system 1) can also be a system that realizes communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), 5th generation mobile communication system New Radio (5G NR), or the like.

[0393] Furthermore, the wireless communication system 1 can also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC can also include dual connectivity of LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity of NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), and the like.

[0394] In EN-DC, a base station (eNB) of LTE (E-UTRA) is a Master Node (MN), and a base station (gNB) of NR is a Secondary Node (SN). In NE-DC, a base station (gNB) of NR is an MN, and a base station (eNB) of LTE (E-UTRA) is an SN.

[0395] The wireless communication system 1 can also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity of both an MN and an SN being base stations (gNBs) of NR (NR-NR Dual Connectivity (NN-DC))).

[0396] The wireless communication system 1 can also have a base station 11 that forms a macro cell C1 with a wide coverage, and a base station 12 (12a-12c) that is configured within the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 can also be located within at least one cell. The configuration, number, and the like of the cells and the user terminal 20 are not limited to the manner shown in the figure. Hereinafter, without distinguishing between the base stations 11 and 12, the base stations 10 are collectively referred to.

[0397] The user terminal 20 can also be connected with at least one of the multiple base stations 10. The user terminal 20 can also use at least one of carrier aggregation (CA) using multiple component carriers (CCs) and dual connectivity (DC).

[0398] Each of the CCs can also 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 Cl can also be included in the FR1, and the small cell C2 can also be included in the FR2. For example, the FR1 can also be a frequency band below 6 GHz (sub-6 GHz), and the FR2 can also be a frequency band higher than 24 GHz (above-24 GHz). In addition, the frequency bands, definitions, and the like of the FR1 and the FR2 are not limited to these, and for example, the FR1 can also correspond to a frequency band higher than the FR2.

[0399] Furthermore, the user terminal 20 can also communicate in each of the CCs using at least one of time division duplex (TDD) and frequency division duplex (FDD).

[0400] The plurality of base stations 10 can also be connected by wire (for example, optical fiber based on Common Public Radio Interface (CPRI), X2 interface, or the like) or wirelessly (for example, 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 a higher station can also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to a relay station (relay) can also be referred to as an IAB node.

[0401] The base station 10 can also be connected to a core network 30 via another base station 10 or directly. The core network 30 can also include at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), or the like, for example.

[0402] The core network 30 can also include, for example, a User Plane Function (UPF), an Access and Mobility management Function (AMF), a Session Management Function (SMF), a Unified Data Management (UDM), an Application Function (AF), a Data Network (DN), a Location Management Function (LMF), an Operation, Administration and Maintenance (OAM), and the like network functions (NFs). Also, a plurality of functions can be provided by one network node. Further, communication with an external network (for example, the Internet) can be performed via a DN.

[0403] The user terminal 20 can also be a terminal that supports at least one of LTE, LTE-A, 5G, and the like.

[0404] In the wireless communication system 1, a wireless access scheme based on Orthogonal Frequency Division Multiplexing (OFDM) can also be used. For example, in at least one of Downlink (DL) and Uplink (UL), 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), and the like can also be used.

[0405] The radio access scheme can also be referred to as a waveform. Further, in the radio communication system 1, other radio access schemes (for example, other single carrier transmission schemes, other multicarrier transmission schemes) can also be used in the radio access schemes of the UL and the DL.

[0406] In the radio communication system 1, as the downlink channel, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)), a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), and the like, which are shared among the user terminals 20, can also be used.

[0407] Further, in the radio communication system 1, as the uplink channel, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)), an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), and the like, which are shared among the user terminals 20, can also be used.

[0408] Through the PDSCH, user data, higher layer control information, a System Information Block (SIB), and the like, can be transmitted. Through the PUSCH, user data, higher layer control information, and the like, can also be transmitted. Further, through the PBCH, a Master Information Block (MIB) can also be transmitted.

[0409] Through the PDCCH, lower layer control information can also be transmitted. The lower layer control information can also include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of the PDSCH and the PUSCH.

[0410] Further, the DCI that schedules the PDSCH can also be referred to as a DL assignment, a DL DCI, and the like, and the DCI that schedules the PUSCH can also be referred to as a UL grant, a UL DCI, and the like. Further, the PDSCH can also be rewritten as DL data, and the PUSCH can also be rewritten as UL data.

[0411] In the detection of the PDCCH, a control resource set (CORESET) and a search space can also be utilized. The CORESET corresponds to a resource in which the DCI is searched for. The search space corresponds to a search area of the PDCCH candidate and a search method. One CORESET can also be associated with one or a plurality of search spaces. The UE can also monitor the CORESET associated with the search space based on a search space setting.

[0412] One search space can also correspond to the PDCCH candidate equivalent to one or a plurality of aggregation levels. One or a plurality of search spaces can also be referred to as a search space set. In addition, the "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting", and the like of the present disclosure can also be rewritten to each other.

[0413] Through the PUCCH, uplink control information (Uplink Control Information (UCI)) including at least one of channel state information (Channel State Information (CSI)), delivery confirmation information (for example, also referred to as a Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, and the like), and a scheduling request (Scheduling Request (SR)) can also be transmitted. Through the PRACH, a random access preamble for establishing a connection with a cell can also be transmitted.

[0414] In addition, in the present disclosure, "downlink", "uplink", and the like can also be described without "link". Furthermore, "Physical" can also be described without the beginning of various channels.

[0415] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), and the like can also be transmitted. In the wireless communication system 1, as the DL-RS, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), and the like can also be transmitted.

[0416] The synchronization signal can be, for example, at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)). A signal block including the SS (PSS, SSS) and the PBCH (and the DMRS for the PBCH) can also be referred to as an SS / PBCH block, an SS block (SS Block (SSB)), or the like. In addition, the SS, the SSB, and the like can also be referred to as a reference signal.

[0417] Further, in the wireless communication system 1, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a measurement reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), and the like can also be transmitted. In addition, the DMRS can also be referred to as a user terminal-specific reference signal (UE-specific Reference Signal).

[0418] (BASE STATION)

[0419] Figure 14is a drawing showing an example of a structure of a base station according to an embodiment. The base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission path interface (transmission line interface) 140. Note that the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140 can each be provided more than one.

[0420] In addition, in the present example, functional blocks of the characteristic portions in the present embodiment are mainly shown, and it is also conceivable that the base station 10 has other functional blocks required for wireless communication. Part of the processing of each unit described below can be omitted.

[0421] The control unit 110 implements control of the entire base station 10. The control unit 110 can be configured of a controller, a control circuit, or the like described based on common knowledge in the technical field to which the present disclosure pertains.

[0422] The control unit 110 can also control generation of signals, scheduling (for example, resource allocation, mapping), and the like. The control unit 110 can also control transmission / reception, measurement, and the like using the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140. The control unit 110 can also generate data, control information, a sequence, and the like transmitted as signals, and forward them to the transmission / reception unit 120. The control unit 110 can also perform call processing (setting, release, and the like) of a communication channel, state management of the base station 10, management of wireless resources, and the like.

[0423] The transmission / reception unit 120 can include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 can include a transmission processing unit 1211 and a reception processing unit 1212. The transmission / reception unit 120 can be configured of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, and the like described based on common knowledge in the technical field to which the present disclosure pertains.

[0424] The transmission / reception unit 120 can be configured as an integrated transmission / reception unit, or can be configured of a transmission unit and a reception unit. The transmission unit can be configured of the transmission processing unit 1211 and the RF unit 122. The reception unit can be configured of the reception processing unit 1212, the RF unit 122, and the measurement unit 123.

[0425] The transmission / reception antenna 130 can be constituted by an antenna such as an array antenna and the like, which can be explained based on common knowledge in the technical field to which the present disclosure pertains.

[0426] The transmission / reception unit 120 can also transmit the downlink channel, the synchronization signal, the downlink reference signal, and the like described above. The transmission / reception unit 120 can also receive the uplink channel, the uplink reference signal, and the like described above.

[0427] The transmission / reception unit 120 can also form at least one of a transmission beam and a reception beam using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.

[0428] The transmission / reception unit 120 (transmission processing unit 1211) can also generate a bit string to be transmitted, for example, by performing processing of a Packet Data Convergence Protocol (PDCP) layer, processing of a Radio Link Control (RLC) layer (for example, RLC retransmission control), processing of a Medium Access Control (MAC) layer (for example, HARQ retransmission control), and the like, with respect to data, control information, and the like acquired from the control unit 110.

[0429] The transmission / reception unit 120 (transmission processing unit 1211) can also perform transmission processing of channel coding (which can include error correction coding), modulation, mapping, filter processing (filtering processing), Discrete Fourier Transform (DFT) processing (as necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, digital-analog conversion, and the like, with respect to the bit string to be transmitted, and output a baseband signal.

[0430] The transmission / reception unit 120 (RF unit 122) can also perform modulation to a wireless band, filter processing, amplification, and the like, with respect to the baseband signal, and transmit a signal of the wireless band via the transmission / reception antenna 130.

[0431] On the other hand, the transmission / reception unit 120 (RF unit 122) can also perform amplification, filter processing, demodulation to a baseband signal, and the like, with respect to a signal of a wireless band received by the transmission / reception antenna 130.

[0432] The transmission / reception unit 120 (reception processing unit 1212) can also apply, to the acquired baseband signal, reception processing such as analog-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (as necessary), filter processing, demapping, demodulation, decoding (which can also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, and the like, and acquire user data and the like.

[0433] The transmission / reception unit 120 (measurement unit 123) can also perform measurements related to the received signal. For example, the measurement unit 123 can also perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, and the like, based on the received signal. The measurement unit 123 can also perform measurements with respect to received power (for example, Reference Signal Received Power (RSRP)), received quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (for example, Received Signal Strength Indicator (RSSI)), propagation path information (for example, CSI), and the like. The measurement results can also be output to the control unit 110.

[0434] The transport path interface 140 can also transmit and receive signals (backhaul signaling) between apparatuses included in the core network 30 (for example, network nodes that provide NFs), other base stations 10, and the like, and can acquire, transmit, and the like, user data (user plane data), control plane data, and the like, for the user terminals 20.

[0435] In addition, the transmission unit and the reception unit of the base station 10 in the present disclosure can also be constituted by at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transport path interface 140.

[0436] Further, the transmission / reception unit 120 can also transmit a configuration of a channel state information (CSI) report for Doppler. The control unit 110 can also determine whether or not a case where a CSI-reference signal (RS) resource for the CSI report occurs earlier than the CSI report.

[0437] Further, the transmission / reception unit 120 can also transmit a configuration of a channel state information (CSI) report for Doppler. The control unit 110 can also determine whether or not a case where a plurality of uplink shared channels scheduled by one downlink control information is configured occurs.

[0438] (user terminal)

[0439] Figure 15 is a diagram showing an example of a structure of a user terminal according to an embodiment. The user terminal 20 is provided with a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. Further, one or more of the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 can be provided.

[0440] Further, in this example, mainly functional blocks of the characteristic part in the present embodiment are shown, and it can be also assumed that the user terminal 20 has other functional blocks necessary for wireless communication. A part of the processing of each unit described below can also be omitted.

[0441] The control unit 210 implements control of the entire user terminal 20. The control unit 210 can be constituted by a controller, a control circuit, or the like described based on common knowledge in the technical field to which the present disclosure pertains.

[0442] The control unit 210 can also control generation, mapping, and the like of a signal. The control unit 210 can also control transmission / reception, measurement, and the like using the transmission / reception unit 220 and the transmission / reception antenna 230. The control unit 210 can also generate data, control information, a sequence, and the like transmitted as a signal, and forward to the transmission / reception unit 220.

[0443] The transmission / reception unit 220 can include a baseband unit 221, an RF unit 222, a measurement unit 223. The baseband unit 221 can include a transmission processing unit 2211, a reception processing unit 2212. The transmission / reception unit 220 can be constituted by a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, and the like described based on common knowledge in the technical field to which the present disclosure pertains.

[0444] The transmission / reception unit 220 can be configured as an integrated transmission / reception unit, or can be configured of a transmission unit and a reception unit. The transmission unit can be configured of the transmission processing unit 2211, the RF unit 222. The reception unit can be configured of the reception processing unit 2212, the RF unit 222, the measurement unit 223.

[0445] The transmission / reception antenna 230 can be configured of an antenna such as an array antenna, which can be explained based on common knowledge in the technical field to which the present disclosure pertains.

[0446] The transmission / reception unit 220 can also receive the above-described downlink channel, synchronization signal, downlink reference signal, and the like. The transmission / reception unit 220 can also transmit the above-described uplink channel, uplink reference signal, and the like.

[0447] The transmission / reception unit 220 can also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), and the like, to form at least one of a transmission beam and a reception beam.

[0448] The transmission / reception unit 220 (transmission processing unit 2211) can also, for example, perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), and the like, on data, control information, and the like, acquired from the control unit 210, to generate a bit string to be transmitted.

[0449] The transmission / reception unit 220 (transmission processing unit 2211) can also perform channel coding (which can include error correction coding), modulation, mapping, filter processing, DFT processing (as necessary), IFFT processing, precoding, digital-analog conversion, and the like, on the bit string to be transmitted, to output a baseband signal.

[0450] In addition, whether or not to apply DFT processing can also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), in a case where transform precoding is effective (enabled), the transmission / reception unit 220 (transmission processing unit 2211) can also perform DFT processing as the above-described transmission processing in order to transmit the channel using a DFT-s-OFDM waveform, and otherwise, the transmission / reception unit 220 (transmission processing unit 2211) can also not perform DFT processing as the above-described transmission processing.

[0451] The transmission / reception unit 220 (RF unit 222) can also perform modulation to a radio frequency band, filter processing, amplification, and the like, on the baseband signal, to transmit a signal of the radio frequency band via the transmission / reception antenna 230.

[0452] On the other hand, the transmission / reception unit 220 (RF unit 222) can also perform amplification, filter processing, demodulation to a baseband signal, and the like with respect to a signal of a radio band received through the transmission / reception antenna 230.

[0453] The transmission / reception unit 220 (reception processing unit 2212) can also apply reception processing such as analog-digital conversion, FFT processing, IDFT processing (as necessary), filter processing, demapping, demodulation, decoding (may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, and the like with respect to the acquired baseband signal, and acquire user data and the like.

[0454] The transmission / reception unit 220 (measurement unit 223) can also perform measurement related to a received signal. For example, the measurement unit 223 can also perform RRM measurement, CSI measurement, and the like based on the received signal. The measurement unit 223 can also perform measurement with respect to reception power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), propagation path information (for example, CSI), and the like. The measurement result can also be output to the control unit 210.

[0455] In addition, the measurement unit 223 can also derive channel measurement for CSI calculation based on a channel measurement resource. The channel measurement resource can also be, for example, a Non Zero Power (NZP) CSI-RS resource. In addition, the measurement unit 223 can also derive interference measurement for CSI calculation based on an interference measurement resource. The interference measurement resource can also be at least one of an NZP CSI-RS resource for interference measurement, a CSI-Interference Measurement (IM) resource, and the like. In addition, the CSI-IM can also be referred to as a CSI-Interference Management (IM), and can be mutually overwritten with a Zero Power (ZP) CSI-RS. In addition, in the present disclosure, the CSI-RS, the NZP CSI-RS, the ZP CSI-RS, the CSI-IM, the CSI-SSB, and the like can also be mutually overwritten.

[0456] In addition, the transmission unit and the reception unit of the user terminal 20 in the present disclosure can also be constituted by at least one of the transmission / reception unit 220 and the transmission / reception antenna 230.

[0457] Further, the transmission / reception unit 220 can also receive a setting of a channel state information (CSI) report for Doppler. The control unit 210 can also identify whether or not a case occurs in which a CSI-reference signal (RS) resource for the CSI report is earlier than the CSI report.

[0458] The control unit 210 can also control the CSI report using a specific codebook on a premise that the case does not occur.

[0459] The control unit 210 can also control the CSI report on a premise that the case does not occur. The setting can also indicate at least one of a time interval from a downlink control channel that triggers the CSI report to the CSI-RS resource, and a time interval from the downlink control channel to an uplink shared channel that carries the CSI report.

[0460] The control unit 210 can also control the CSI report in a case where the case occurs. A time interval between the CSI-RS resource and an uplink shared channel that carries the CSI report can also satisfy a condition.

[0461] Further, the transmission / reception unit 220 can also receive a setting of a channel state information (CSI) report for Doppler. The control unit 210 can also identify whether or not a case occurs in which a CSI-reference signal (RS) resource for the CSI report is earlier than the CSI report.

[0462] The control unit 210 can also control the CSI report on a premise that the case does not occur.

[0463] The control unit 210 can also control the CSI report in a case where the case occurs.

[0464] In a case where the case occurs, at least one of a number of the plurality of uplink shared channels, and one uplink shared channel within the plurality of uplink shared channels that carries the CSI report can also be limited.

[0465] (Hardware structure)

[0466] Further, the block diagrams used in the description of the above-described embodiments show blocks of functional units. These functional blocks (structural units) are realized by any combination of hardware and software, at least one of them. Furthermore, the method of realizing each functional block is not particularly limited. That is, each functional block can be realized by one device that is physically or logically integrated, or can be realized by two or more devices that are physically or logically separated and connected directly or indirectly (for example, by wire, wireless, or the like). Each functional block can also be realized by combining the above-described one device or the above-described plurality of devices with software.

[0467] Here, in the functions, there are judgment, decision, determination, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, and the like, but are not limited to these. For example, a functional block (structural unit) that implements a transmission function can also be referred to as a transmitting unit, a transmitter, or the like. Any one of these is as described above, and the implementation method is not particularly limited.

[0468] For example, the base station, the user terminal, and the like in one embodiment of the present disclosure can also function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 16 is a diagram illustrating an example of a hardware structure of a base station and a user terminal according to one embodiment. The base station 10 and the user terminal 20 described above can also 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, and the like.

[0469] In addition, in the present disclosure, the terms of device, circuit, apparatus, section, unit, and the like can be rewritten with each other. The hardware structure of the base station 10 and the user terminal 20 can be configured to include one or more of each device illustrated in the diagram, or can be configured not to include a part of the devices.

[0470] For example, the processor 1001 is illustrated as one, but there can be a plurality of processors. Furthermore, the processing can be performed by one processor, or can be performed by two or more processors simultaneously, sequentially, or with other methods. In addition, the processor 1001 can be implemented by one or more chips.

[0471] Regarding each function in the base station 10 and the user terminal 20, at least one of the operation and the control of the communication via the communication device 1004, or the readout and the writing of the data in the memory 1002 and the storage 1003, is implemented by the processor 1001 by reading a specific software (program) into the hardware such as the processor 1001 and the memory 1002.

[0472] The processor 1001, for example, causes an operating system to operate to control the entire computer. The processor 1001 can also be constituted by a central processing device (Central Processing Unit (CPU)) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like. For example, at least a part of the control unit 110 (210), the transmission-reception unit 120 (220), and the like described above can also be realized by the processor 1001.

[0473] Further, the processor 1001 reads out programs (program codes), software modules, data, and the like from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them. As the programs, a program that causes the computer to execute at least a part of the operations described in the above-described embodiments can be used. For example, the control unit 110 (210) can also be realized by a control program stored in the memory 1002 and operated in the processor 1001, and the same can be applied to other functional blocks.

[0474] The memory 1002 can also be a computer-readable recording medium such as at least one of a Read Only Memory (ROM), an Erasable Programmable ROM (EPROM), an Electrically EPROM (EEPROM), a Random Access Memory (RAM), other appropriate storage media. The memory 1002 can also be referred to as a register, a cache, a main memory (main storage device), and the like. The memory 1002 can hold programs (program codes), software modules, and the like that can be executed in order to implement the wireless communication method related to an embodiment of the present disclosure.

[0475] The storage 1003 can also be a computer-readable recording medium such as at least one of a flexible disc, a Floppy (registered trademark) disc, a magneto-optical disc (for example, a Compact Disc (Compact Disc Read Only Memory (CD-ROM)), a Digital Versatile Disc, a Blu-ray (registered trademark) disc), a removable magnetic disc, a hard disk drive, a smart card, a flash memory device (for example, a card, a stick, a key drive), a magnetic stripe, a database, a server, other appropriate storage media. The storage 1003 can also be referred to as an auxiliary storage device.

[0476] The communication device 1004 is hardware (transmission-reception device) for performing communication between computers via at least one of a wired network and a wireless network, for example, also referred to as a network device, a network controller, a network card, a communication module, and the like. The communication device 1004 can also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like in order to realize at least one of, for example, Frequency Division Duplex (FDD) and Time Division Duplex (TDD). The transmission-reception unit 120 (220), the transmission-reception antenna 130 (230), and the like described above can also be implemented by the communication device 1004. The transmission-reception unit 120 (220) can also be implemented by the transmission unit 120a (220a) and the reception unit 120b (220b) to be physically or logically separated.

[0477] The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives input from the outside. The output device 1006 is an output device (for example, a display, a speaker, a Light Emitting Diode (LED) lamp, and the like) that performs output to the outside. In addition, the input device 1005 and the output device 1006 can also be a structure that is integrated (for example, a touch panel).

[0478] Further, the processor 1001, the memory 1002, and the like are connected by a bus 1007 for communicating information. The bus 1007 can be configured with a single bus, or different buses can be configured between the devices.

[0479] Further, the base station 10 and the user terminal 20 can also be configured to include a microprocessor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), and the like hardware, and a part or all of the functional blocks can also be implemented using the hardware. For example, the processor 1001 can also be implemented using at least one of these hardware.

[0480] (Modified Example)

[0481] Also, the terms described in the present disclosure and the terms necessary for understanding the present disclosure can be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (a signal or signaling) can be rewritten with each other. Also, a signal can be a message. A reference signal (RS) can also be abbreviated as RS, and can also be referred to as a pilot, a pilot signal, or the like depending on the applied standard. Also, a component carrier (CC) can also be referred to as a cell, a frequency carrier, a carrier frequency, or the like.

[0482] A radio frame can also be composed of one or more periods (frames) in the time domain. Each period (frame) of the one or more periods (frames) composing the radio frame can also be referred to as a subframe. Further, a subframe can also be composed of one or more slots in the time domain. A subframe can also be a fixed length of time regardless of numerology (e.g., 1 ms).

[0483] Here, numerology can also be a communication parameter applied in at least one of transmission and reception of certain signals or channels. For example, numerology can also indicate at least one of a subcarrier spacing (SCS), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (TTI), a number of symbols per TTI, a radio frame structure, a specific filtering processing performed by a transmitter-receiver in the frequency domain, a specific windowing processing performed by the transmitter-receiver in the time domain, or the like.

[0484] A slot can also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, or the like) in the time domain. Also, a slot can be a time unit based on numerology.

[0485] A slot can also contain a plurality of mini-slots. Each mini-slot can also be composed of one or more symbols in the time domain. Also, a mini-slot can also be referred to as a sub-slot. A mini-slot can also be composed of a smaller number of symbols than a slot. A PDSCH (or PUSCH) transmitted in a larger time unit than a mini-slot can also be referred to as PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot can also be referred to as PDSCH (PUSCH) mapping type B.

[0486] A radio frame, a subframe, a slot, a mini-slot, and a symbol each represent a time unit for transmitting a signal. The radio frame, the subframe, the slot, the mini-slot, and the symbol can also be referred to as other names. Also, the time units of the frame, the subframe, the slot, the mini-slot, the symbol, and the like in the disclosure can be interchangeable.

[0487] For example, one subframe can also be referred to as a TTI, a plurality of consecutive subframes can also be referred to as a TTI, one slot or one mini-slot can also be referred to as a TTI. That is, at least one of the subframe and the TTI can be a subframe (1 ms) in the existing LTE, can be a period shorter than 1 ms (for example, 1-13 symbols), or can be a period longer than 1 ms. Also, the unit representing the TTI can not be referred to as a subframe, but can be referred to as a slot, a mini-slot, or the like.

[0488] Here, the TTI, for example, refers to a minimum time unit of scheduling in wireless communication. For example, in the LTE system, the base station performs scheduling of allocating a radio resource (a frequency bandwidth, a transmission power, and the like that can be used in each user terminal) to each user terminal in a TTI unit. Also, the definition of the TTI is not limited thereto.

[0489] The TTI can also be a transmission time unit of a data packet (a transport block), a code block, a codeword, or the like that has been channel-encoded, and can also become a processing unit of scheduling, link adaptation, or the like. Also, when the TTI is given, the time interval (for example, the number of symbols) to which the transport block, the code block, the codeword, or the like is actually mapped can be shorter than the TTI.

[0490] Also, in the case where one slot or one mini-slot is referred to as a TTI, one or more TTIs (that is, one or more slots or one or more mini-slots) can also become a minimum time unit of scheduling. Further, the number of slots (the number of mini-slots) constituting the minimum time unit of scheduling can also be controlled.

[0491] The TTI having a time length of 1 ms can also be referred to as a normal TTI (a TTI in 3GPP Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a slot, or the like. The TTI shorter than the normal TTI can also be referred to as a shortened TTI, a short TTI, a partial TTI (or a fractional TTI), a shortened subframe, a short subframe, a mini-slot, a sub-slot, a slot, or the like.

[0492] Also, the long TTI (for example, the normal TTI, the subframe, or the like) can be rewritten as a TTI having a time length longer than 1 ms, and the short TTI (for example, the shortened TTI, or the like) can be rewritten as a TTI having a TTI length shorter than the long TTI and a TTI length of 1 ms or more.

[0493] A resource block (RB) is a unit of resource allocation in the time domain and the frequency domain, and can include one or more contiguous subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB can also be the same regardless of numerologies, for example, 12. The number of subcarriers included in an RB can also be determined based on numerologies.

[0494] In addition, an RB can include one or more symbols in the time domain, and can be the length of one slot, one mini-slot, one subframe, or one TTI. One TTI, one subframe, etc. can also be composed of one or more resource blocks, respectively.

[0495] In addition, one or more RBs can also be referred to as a physical RB (PRB), a subcarrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0496] In addition, a resource block can also be composed of one or more resource elements (REs). For example, one RE can also be a wireless resource area of one subcarrier and one symbol.

[0497] A bandwidth part (BWP) (may also be referred to as a partial bandwidth, etc.) can also represent a subset of contiguous common RBs (common resource blocks) for a certain numerology in a certain carrier. Here, the common RBs can be determined by the index of the RBs with respect to the common reference point of the carrier. The PRB can also be defined in a certain BWP and additionally numbered within the BWP.

[0498] The UL BWP (BWP for UL) and the DL BWP (BWP for DL) can also be included in the BWP. For a UE, one or more BWP can also be set in one carrier.

[0499] At least one of the set BWP can also be activated, and the UE can not be assumed to transmit and receive a specific signal / channel outside the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure can also be rewritten as "BWP".

[0500] In addition, the structures of the radio frame, the subframe, the slot, the mini-slot, the symbol, and the like described above are merely examples. For example, the number of subframes included in a radio frame, the number of slots of each subframe or radio frame, the number of mini-slots included in a slot, the number of symbols included in a slot or a mini-slot, the number of RBs, the number of subcarriers included in an RB, and the structures of the number of symbols in a TTI, the symbol length, the Cyclic Prefix (CP) length, and the like can be variously changed.

[0501] Further, the information, the parameters, and the like explained in the present disclosure can be expressed by absolute values, can be expressed by relative values with respect to specific values, and can be expressed by corresponding other information. For example, the radio resources can also be indicated by specific indexes.

[0502] In the present disclosure, the names used for the parameters and the like are not names in all aspects. Further, the mathematical expressions and the like using these parameters can also be different from those explicitly disclosed in the present disclosure. The various channels (PUCCH, PDCCH, and the like) and the information elements can be identified by any appropriate names, and thus the various names assigned to these various channels and the information elements are not names in all aspects.

[0503] The information, the signals, and the like explained in the present disclosure can also be represented by any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, and the like that can be mentioned throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0504] Further, the information, the signals, and the like can be outputted in at least one of physical or electrical quantities and can be managed using management tables. The information, the signals, and the like inputted or outputted can be overwritten, updated, or added. The information, the signals, and the like outputted can be deleted. The information, the signals, and the like inputted can be transmitted to other devices.

[0505] The information, the signals, and the like inputted or outputted can be stored in a specific location (for example, a memory) and can be managed using management tables. The information, the signals, and the like inputted or outputted can be overwritten, updated, or added. The information, the signals, and the like outputted can be deleted. The information, the signals, and the like inputted can be transmitted to other devices.

[0506] The notification of the information is not limited to the manners / embodiments explained in the present disclosure, and can be performed in other methods. For example, the notification of the information in the present disclosure can also be performed through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0507] In addition, the physical layer signaling can also 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 can also be referred to as an RRC message, for example, can also be an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc. In addition, the MAC signaling can also be notified, for example, using a MAC Control Element (CE).

[0508] In addition, the notification of specific information (e.g., the notification of "X is") is not limited to explicit notification, and can also be performed implicitly (e.g., by not performing the notification of the specific information, or by the notification of other information).

[0509] The determination can be performed through a value represented by one bit (0 or 1), can also be performed through a true / false value (boolean) represented by true or false, and can also be performed through a comparison of numerical values (e.g., a comparison with a specific value).

[0510] Software, regardless of the tangible forms of non-transitory media used to actually carry out the software, shall be construed broadly to mean instructions, instruction sets, code (which includes microcode), code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0511] Also, software, instructions, information, etc. can be transmitted as encoded signals using a transmission medium via a communication link over a communication network and / or a bus. For example, when the software is originally transmitted from a website, server, or other remote source using at least one of wired (e.g., coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), or other wired technology) and / or wireless technology (e.g., infrared, radio, or other wireless technology) over a communication link, such as a telephone line, cellular telephone link, wireless data transmission link, cables, or other communication link, then one or more of wired / wireless technologies and / or communication links are included in the definition of transmission medium.

[0512] The terms “system” and “network” used in the present disclosure can be used interchangeably. “Network” can also mean a device included in the network (e.g., a base station).

[0513] In the present disclosure, the terms “precoding,” “precoder,” “weight (precoding weight),” “Quasi-Co-Location (QCL),” “Transmission Configuration Indication state (TCI state),” “spatial relation,” “spatial domain filter,” “transmission power,” “phase rotation,” “antenna port,” “layer,” “number of layers,” “rank,” “resource,” “resource set,” “beam,” “beam width,” “beam angle,” “antenna,” “antenna element,” “panel,” “UE panel,” “transmitting entity,” “receiving entity,” etc. can be used interchangeably.

[0514] Also, in the present disclosure, an antenna port can also be mutually rewritten with an antenna port for an arbitrary signal / channel (e.g., a DeModulation Reference Signal (DMRS) port). In the present disclosure, a resource can also be mutually rewritten with a resource for an arbitrary signal / channel (e.g., a reference signal resource, an SRS resource, etc.). Also, a resource can also include a time / frequency / code / space / power resource. Furthermore, a spatial domain transmission filter can also include at least one of a spatial domain transmission filter and a spatial domain reception filter.

[0515] The above-described group, for example, can also include at least one of a spatial relation group, a Code Division Multiplexing (CDM) group, a Reference Signal (RS) group, a COntrol REsource SET (CORESET) group, a PUCCH group, an antenna port group (e.g., a DMRS port group), a layer group, a resource group, a beam group, an antenna group, a panel group, etc.

[0516] Furthermore, in the present disclosure, a beam, an SRS Resource Indicator (SRI), a CORESET, a CORESET pool, a PDSCH, a PUSCH, a Codeword (CW), a Transport Block (TB), an RS, etc. can also be mutually rewritten.

[0517] Furthermore, in the present disclosure, a TCI state, a downlink TCI state (DL TCI state), an uplink TCI state (UL TCI state), a unified TCI state, a common TCI state, a joint TCI state, etc. can also be mutually rewritten.

[0518] Furthermore, in the present disclosure, "QCL", "QCL assumption", "QCL relationship", "QCL type information", "QCL property / properties", "property of a specific QCL type (e.g., Type A, Type D)", "a specific QCL type (e.g., Type A, Type D)", etc. can also be mutually rewritten.

[0519] In the present disclosure, an index, an Identifier (ID), an indicator, an indication, a resource ID, and the like can be interchangeable with each other. In the present disclosure, a sequence, a list, a set, a group, a cluster, a subset, and the like can be interchangeable with each other.

[0520] In addition, a spatial relation information Identifier (ID) (TCI state ID) and spatial relation information (TCI state) can also be interchangeable with each other. The "spatial relation information (TCI state)" can also be interchangeable with "a set of spatial relation information (TCI states)", "one or more spatial relation information", and the like. A TCI state and a TCI can also be interchangeable with each other. Spatial relation information and a spatial relation can also be interchangeable with each other.

[0521] In the present disclosure, the terms of "Base Station (BS)", "wireless 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", and the like can be used interchangeably. There is also a case where the base station is called with the terms of macro cell, small cell, femto cell, pico cell, and the like.

[0522] A base station can accommodate one or more (for example, three) cells. In the case where the base station accommodates multiple cells, the coverage area of the base station as a whole can be divided into multiple smaller areas, and each of the smaller areas can also be provided with a communication service by a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH))). The term of "cell" or "sector" refers to a part or the whole of the coverage area of at least one of the base station and the base station subsystem that provides a communication service within the coverage.

[0523] In the present disclosure, the case where a base station transmits information to a terminal can also be interchangeable with the case where the base station indicates to the terminal a control / operation based on the information.

[0524] In the present disclosure, the terms "mobile station (MS)", "user terminal", "user equipment (UE)", "terminal" and the like can be used interchangeably.

[0525] There are also instances where a mobile station is called a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a hand set, a user agent, a mobile client, a client, or a number of other suitable terms.

[0526] At least one of the base station and the mobile station can also be called a transmission device, a reception device, a wireless communication device, and the like. In addition, at least one of the base station and the mobile station can be a device mounted on a moving object, a moving object itself, and the like.

[0527] The moving object refers to an object that can move, and the moving speed is arbitrary, and of course, a case where the moving object is stopped is also included. The moving object includes, for example, a vehicle, a transport vehicle, an automobile, a motorcycle, a bicycle, a connected car, a loading shovel, a bulldozer, a wheel loader, a dump truck, a fork lift, a train, a bus, a trolley, a rickshaw, a ship and other watercraft, an airplane, a rocket, an artificial satellite, a drone, a multicopter, a quadcopter, a balloon, and an object mounted thereon, and is not limited to these. In addition, the moving object can also be a moving object that autonomously travels based on a travel instruction.

[0528] The moving object can be a vehicle (for example, a vehicle, an airplane, and the like), can be a moving object that moves in a unmanned manner (for example, a drone, an autonomous vehicle, and the like), and can be a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move when a communication operation is performed. For example, at least one of the base station and the mobile station can also be an Internet of Things (IoT) device such as a sensor.

[0529] Figure 17FIG. 1 is a diagram showing an example of a vehicle according to an embodiment. The vehicle 40 is provided with a drive unit 41, a direction control 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, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotation speed 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.

[0530] The drive unit 41 is constituted by at least one of an engine, a motor, a hybrid of an engine and a motor, for example. The direction control unit 42 is constituted to include at least a steering wheel (also referred to as a handlebar), and performs direction control of at least one of the front wheels 46 and the rear wheels 47 on the basis of an operation of the steering wheel operated by a user.

[0531] The electronic control unit 49 is constituted by a microprocessor 61, a memory (ROM, RAM) 62, a communication port (for example, an input / output (Input / Output (IO)) port) 63. Signals from the various sensors 50-58 provided in the vehicle are input in the electronic control unit 49. The electronic control unit 49 can also be referred to as an ECU (Electronic Control Unit).

[0532] As the signals from the various sensors 50-58, there are a current signal from the current sensor 50 that senses a current of the motor, a rotation speed signal of the front wheels 46 / rear wheels 47 acquired by the rotation speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 acquired by the air pressure sensor 52, a vehicle speed signal acquired by the vehicle speed sensor 53, an acceleration signal acquired by the acceleration sensor 54, a depression amount signal of the accelerator pedal 43 acquired by the accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 acquired by the brake pedal sensor 56, an operation signal of the shift lever 45 acquired by the shift lever sensor 57, a detection signal for detecting an obstacle, a vehicle, a pedestrian, and the like acquired by the object detection sensor 58, and the like.

[0533] The information service unit 59 is constituted by a vehicle navigation system, an audio system, a speaker, a display, a television, a radio, various devices for providing (outputting) various information such as driving information, traffic information, entertainment information, and the like, and one or more ECUs that control these devices. The information service unit 59 provides various information / services (for example, multimedia information / multimedia services) to an occupant of the vehicle 40 using information acquired from an external device via the communication module 60 or the like.

[0534] The information service unit 59 can include an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that receives input from the outside and an output device (e.g., a display, a speaker, an LED lamp, a touch panel, etc.) that implements output to the outside.

[0535] The drive assist system unit 64 is constituted by a millimeter wave radar, a Light Detection and Ranging (LiDAR), a camera, a positioning locator (e.g., a Global Navigation Satellite System (GNSS), etc.), map information (e.g., a High Definition (HD) map, an Autonomous Vehicle (AV) map, etc.), a gyro system (e.g., an inertial measurement device (Inertial Measurement Unit (IMU)), an inertial navigation device (Inertial Navigation System (INS)), etc.), an Artificial Intelligence (AI) chip, an AI processor, and the like, which are various devices for providing a function for preventing an accident from occurring and reducing a driving load on a driver, and one or more ECUs that control these devices. Further, the drive assist system unit 64 transmits and receives various information via the communication module 60 and implements a drive assist function or an autonomous driving function.

[0536] The communication module 60 is capable of communicating with the microprocessor 61 and the structural elements of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) among the microprocessor 61 and the memory (ROM, RAM) 62 in the drive unit 41, the direction control unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the electronic control unit 49, and the various sensors 50-58 provided in the vehicle 40 via the communication port 63.

[0537] The communication module 60 is capable of being controlled by the microprocessor 61 of the electronic control unit 49 and is a communication device capable of communicating with an external device. For example, various information is transmitted and received between external devices via wireless communication. The communication module 60 can be located at either of the inside and the outside of the electronic control unit 49. The external device can also be the base station 10, the user terminal 20, and the like described above, for example. Further, the communication module 60 can also be at least one of the base station 10 and the user terminal 20 described above (may function as at least one of the base station 10 and the user terminal 20).

[0538] The communication module 60 can also transmit at least one of the signals from the 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 the external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, and the like can also be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 60 can also contain information based on the above input.

[0539] The communication module 60 receives various information (traffic information, traffic light information, inter-vehicle information, and the like) transmitted from the external device and displays it to the information service unit 59 provided in the vehicle. The information service unit 59 can also be referred to as an output unit that outputs information (for example, to a display, a speaker, and the like) based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 60.

[0540] Further, the communication module 60 stores various information received from the external device in the memory 62 that can be used by the microprocessor 61. The microprocessor 61 can also perform control of the drive unit 41, the direction control unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axles 48, the various sensors 50-58, and the like provided in the vehicle 40 based on the information stored in the memory 62.

[0541] Further, the base station in the present disclosure can also be rewritten as a user terminal. For example, the structures in which the communication between the base station and the user terminal is replaced with communication between a plurality of user terminals (for example, also referred to as Device-to-Device (D2D), Vehicle-to-Everything (V2X), and the like) can also apply the various modes / embodiments of the present disclosure. In this case, it can also be configured to have the functions of the above-described base station 10 by the user terminal 20. Further, the terms of "uplink", "downlink", and the like can also be rewritten as terms corresponding to inter-terminal communication (for example, "sidelink"). For example, the uplink channel, the downlink channel, and the like can also be rewritten as a sidelink channel.

[0542] Likewise, the user terminal in the present disclosure can also be rewritten as a base station. In this case, it can also be configured to have the functions of the above-described user terminal 20 by the base station 10.

[0543] In the present disclosure, operations performed by a base station are sometimes also performed by an upper node thereof, depending on the situation. Obviously, in a network including one or more network nodes having a base station, various operations performed for communication with a terminal can be performed by the base station, one or more network nodes other than the base station (for example, consider a Mobility Management Entity (MME), a Serving-Gateway (S-GW), and the like, but not limited to these), or a combination thereof.

[0544] The modes / embodiments explained in the present disclosure can be used alone or in combination, and can also be used in switching as execution proceeds. Furthermore, the processing procedure, timing, flowchart, and the like of the modes / embodiments explained in the present disclosure can also be changed in order as long as there is no contradiction. For example, for the methods explained in the present disclosure, the elements of various steps are prompted using the order of the examples, but are not limited to the specific order prompted.

[0545] The modes / embodiments explained in the present disclosure can also be applied to 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 an integer, a 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 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, next-generation systems based on enhancement, modification, creation, or specification thereof, and the like. Furthermore, a plurality of systems can also be combined (for example, LTE or LTE-A, in combination with 5G, and the like) to be applied.

[0546] The recitation "based on" used in the present disclosure does not mean "only based on" unless specifically written. In other words, the recitation "based on" means both "only based on" and "at least based on".

[0547] Any reference to an element or element in the disclosure using a designation of "first," "second," and so on does not limit the quantity or order of those elements. Rather, these designations are used as a convenient method of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed or that the first element must precede the second element.

[0548] The term "determining" as used in the disclosure can encompass a wide variety of actions. For example, "determining" can include calculating, computing, processing, deriving, investigating, looking up (such as looking up in a table, a database or another data structure), ascertaining and the like.

[0549] In addition, "determining" can include receiving (such as receiving information), accessing (such as accessing data in a memory), and the like.

[0550] In addition, "determining" can include resolving, selecting, choosing, establishing and the like.

[0551] In addition, "determining" can be interchanged with "assuming," "expecting," "considering" and the like in the present disclosure. Also, "not assuming" can be interchanged with "assuming not" in the present disclosure.

[0552] In the present disclosure, "expect" can also be mutually rewritten with "be expected". For example, "expect(s)..." (the "...", for example, can also be expressed with a that clause, a to infinitive, and the like) can also be mutually rewritten with "be expected...". "Does not expect..." can also be mutually rewritten with "be not expected...". Furthermore, "An apparatus A is not expected..." can also be mutually rewritten with "An apparatus B other than the apparatus A does not expect... to the apparatus A" (for example, in a case where the apparatus A is a UE, the apparatus B can also be a base station).

[0553] The "maximum transmission power" described in the present disclosure can mean a maximum value of the transmission power, can mean a nominal maximum transmission power (a nominal UE maximum transmission power), or can mean a rated maximum transmission power (a rated UE maximum transmission power).

[0554] The term "connected", "coupled", or all variations of them, used in the present disclosure, means all of the connections or couplings between two or more elements directly or indirectly, and can include a case where one or more intermediate elements exist between two elements "connected" or "coupled" to each other. The coupling or connection between elements can be physical, logical, or a combination thereof. For example, "connected" can also be rewritten as "accessed".

[0555] In the present disclosure, in a case where two elements are connected, it can be considered that they are "connected" or "coupled" to each other using one or more wires, cables, printed electric connections, and the like, and as several non-limiting and non-inclusive examples, using electromagnetic energy having a wavelength in a radio frequency domain, a microwave region, an optical (both visible and non-visible) region, and the like.

[0556] In the present disclosure, the term "A is different from B" can also mean "A and B are different from each other". In addition, the term can also mean "A and B are different from C, respectively". The terms "separated", "coupled", and the like can also be interpreted in the same manner as "different".

[0557] In the present disclosure, in the case where "include", "including", and variations thereof are used, these terms are intended to mean the same as the term "comprising". Furthermore, in the present disclosure, the term "or" is not intended to mean the exclusive or.

[0558] In the present disclosure, in the case where a definite article is added by translation, for example, a, an, and the in English, the present disclosure can also include the case where the noun following these definite articles is plural.

[0559] In the present disclosure, "below", "less than", "above", "more than", "equal to", and the like can also be rewritten with each other. Furthermore, in the present disclosure, statements that mean "good", "bad", "large", "small", "high", "low", "early", "late", "wide", "narrow", and the like can also be rewritten with each other without being limited to the original, comparative, and superlative. Furthermore, in the present disclosure, statements that mean "good", "bad", "large", "small", "high", "low", "early", "late", "wide", "narrow", and the like can also be rewritten with each other as expressions with "i-th" (i is an arbitrary integer) attached thereto without being limited to the original, comparative, and superlative (for example, "highest" can also be rewritten with "i-th highest" with each other).

[0560] In the present disclosure, "of", "for", "regarding", "related to", "associated with", and the like can also be rewritten with each other.

[0561] In the present disclosure, "when A, B", "if A, B", "B upon A", "B in response to A", "B based on A", "B during / while A", "B before A", "B at / on A", "B after A", "B since A", "B until A", and the like can be rewritten each other. In addition, A, B, and the like here can be appropriately replaced with a noun, a gerund, a general article, and the like appropriate expression according to the context. In addition, the time difference between A and B can be substantially 0 (immediately after or immediately before). Furthermore, a time offset can be applied to the time of A. For example, "A" can be rewritten with "A time offset before / after" each other. The time offset (for example, one or more symbols / slots) can be predetermined or determined by the UE based on notified information.

[0562] In the present disclosure, timing, time, time instance, arbitrary time unit (for example, slot, sub-slot, symbol, subframe), period, opportunity (occasion), resource, and the like can be rewritten each other.

[0563] The above, the invention related to the present disclosure is explained in detail, but for those skilled in the art, the invention related to the present disclosure is obviously not limited to the embodiments described in the present disclosure. The disclosure is for the purpose of illustration, not with any limiting meaning of the invention related to the present disclosure.

Claims

1. A terminal, comprising: The receiving unit is configured to receive Channel State Information (CSI) reports for Doppler purposes; and The control unit identifies whether a situation has occurred where multiple uplink shared channels have been set up via a downlink control message.

2. The terminal according to claim 1, wherein, The control unit controls the CSI report under the premise that the aforementioned situation does not occur.

3. The terminal according to claim 1, wherein, The control unit controls the CSI report when the aforementioned situation occurs.

4. The terminal according to claim 1, wherein, In the event of the aforementioned situation, the number of the plurality of uplink shared channels and at least one uplink shared channel among the plurality of uplink shared channels carrying the CSI report are limited.

5. A wireless communication method, which is a wireless communication method for a terminal, comprising: The steps for setting up the reception of Channel State Information (CSI) reports for Doppler purposes; and The steps to identify whether a situation has occurred where multiple uplink shared channels are configured via a single downlink control message.

6. A base station, comprising: The transmission unit is configured to transmit Channel State Information (CSI) reports for Doppler transmission; and The control unit determines whether a situation arises where multiple uplink shared channels are configured through a single downlink control message.

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