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 information pertaining to a setting of a group-based beam report and information pertaining to a setting of simultaneous UL transmission; and a control unit that, when both the group-based beam reporting and the simultaneous UL transmission are enabled, performs control such that UL group-based beam reporting and DL group-based beam reporting are performed in one channel state information report.

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 Art

[0002] In a Universal Mobile Telecommunication System (UMTS) network, Long Term Evolution (LTE) has been standardized for the purpose of further high-speed data rates, low latency, etc. (Non-Patent Document 1). In addition, for the purpose of further large capacity and high performance of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9), LTE-Advanced (3GPP Rel.10-14) has been standardized.

[0003] Subsequent systems of LTE are also being studied (for example, also referred to as the 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 and later, etc.).

[0004] Prior Art Documents

[0005] Non-Patent Documents

[0006] Non-Patent Document 1: 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)”, April 2010 Summary of the Invention

[0007] Problems to be Solved by the Invention

[0008] In Rel. 15 and 16 NR, for UEs for which group-based beam reporting is configured to be valid, each report is configured to support reporting of 2 different beam indices. In Rel. 17, enhancements related to beam management association for user terminals (user equipment (UE)) with multiple panels (multi-panel), multiple transmission / reception points (multi-transmission / reception point (TRP)), etc. are supported.

[0009] In addition, after Rel. 18, it is also envisioned to introduce / support group-based beam reporting associated with UL transmission.

[0010] However, there has been no study on how to perform group-based beam reporting associated with UL transmission. If this is not clear, proper communication between the TRP and the UE cannot be carried out, and there is a concern about a reduction in communication throughput.

[0011] Therefore, one object of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of properly performing group-based beam reporting associated with UL transmission.

[0012] Means for Solving the Problem

[0013] A terminal according to one aspect of the present disclosure includes: a receiving unit that receives information related to the configuration of group-based beam reporting and information related to the configuration of simultaneous UL transmission; and a control unit that, when both the group-based beam reporting and the simultaneous UL transmission are valid, controls to perform UL group-based beam reporting and DL group-based beam reporting in one channel state information report.

[0014] Advantageous Effects of the Invention

[0015] According to one aspect of the present disclosure, group-based beam reporting associated with UL transmission can be properly performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A And Figure 1B is a diagram showing an example of an RRC information element related to CSI report configuration and CSI resource configuration.

[0017] Figure 2A And Figure 2B is a diagram showing an example of an RRC information element related to NZP CSI-RS resource set and CSI-SSB resource set.

[0018] Figure 3This is a diagram showing an example of an RRC information element related to the TCI state.

[0019] Figure 4A And Figure 4B This is a diagram showing an example of UL transmission on a single panel.

[0020] Figures 5A to 5C This is a diagram showing an example of Mode 1-3 of simultaneous UL transmission using multiple panels.

[0021] Figures 6A to 6C This is a diagram showing an example of the PUSCH transmission mode.

[0022] Figures 7A to 7C This is a diagram showing another example of the PUSCH transmission mode.

[0023] Figure 8 This is an excerpt of the RRC information element "CSI-ReportConfig".

[0024] Figure 9 This is a diagram showing an example of CSI reporting in Rel. 15 NR.

[0025] Figure 10 This is a diagram showing an example of CSI reporting for multi-group based beam reporting after Rel. 17 NR.

[0026] Figure 11 This is a diagram showing an example of UL group-based beam reporting related to the first embodiment.

[0027] Figure 12 This is a diagram showing another example of UL group-based beam reporting related to the first embodiment.

[0028] Figure 13 This is a diagram showing another example of UL group-based beam reporting related to the first embodiment.

[0029] Figure 14 This is a diagram showing another example of UL group-based beam reporting related to the first embodiment.

[0030] Figure 15 This is a diagram showing another example of UL group-based beam reporting related to the first embodiment.

[0031] Figure 16 This is a diagram showing another example of UL group-based beam reporting related to the first embodiment.

[0032] Figure 17 This is a diagram showing an example of UL group-based beam reporting related to the second embodiment.

[0033] Figure 18 This is a diagram showing another example of UL group-based beam reporting according to the second embodiment.

[0034] Figure 19 This is a diagram showing another example of UL group-based beam reporting according to the second embodiment.

[0035] Figure 20 This is a diagram showing another example of UL group-based beam reporting according to the second embodiment.

[0036] Figure 21 This is a diagram showing an example of UL group-based beam reporting according to the third embodiment.

[0037] Figure 22 This is a diagram showing another example of UL group-based beam reporting according to the third embodiment.

[0038] Figure 23 This is a diagram showing an example of the schematic structure of a wireless communication system according to an embodiment.

[0039] Figure 24 This is a diagram showing an example of the structure of a base station according to an embodiment.

[0040] Figure 25 This is a diagram showing an example of the structure of a user terminal according to an embodiment.

[0041] Figure 26 This is a diagram showing an example of the hardware structure of a base station and a user terminal according to an embodiment.

[0042] Figure 27 This is a diagram showing an example of a vehicle according to an embodiment. Detailed Embodiment

[0043] (CSI)

[0044] In NR, the UE measures the channel state using a reference signal (or the resources for the reference signal) and feeds back (reports) the channel state information (Channel State Information (CSI)) to the network (e.g., a base station).

[0045] The UE can also measure the channel state by using at least one of a Channel State Information Reference Signal (CSI-RS), a Synchronization Signal / Physical Broadcast Channel (SS / PBCH) block, a Synchronization Signal (SS), a Demodulation Reference Signal (DMRS), etc.

[0046] The CSI-RS resource can also include at least one of a Non Zero Power (NZP) CSI-RS resource, a Zero Power (ZP) CSI-RS resource, and a CSI Interference Measurement (CSI-IM) resource.

[0047] The resource for measuring the signal component of the CSI can also be referred to as a Signal Measurement Resource (Signal Detection Resource (SMR)), a Channel Measurement Resource (Channel Detection Resource (CMR)). The SMR (CMR) can also include, for example, an NZP CSI-RS resource, an SSB, etc. for channel measurement.

[0048] The resource for measuring the interference component of the CSI can also be referred to as an Interference Measurement (Detection) Resource (IMR). The IMR can also include, for example, at least one of an NZP CSI-RS resource, an SSB, a ZP CSI-RS resource, and a CSI-IM resource for interference measurement.

[0049] The SS / PBCH block is a block that contains synchronization signals (e.g., a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS)) and a PBCH (and the corresponding DMRS), and can also be referred to as an SS block (SSB), etc.

[0050] In addition, CSI may 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), a Layer 1 Reference Signal Received Power (L1-RSRP), a Reference Signal Received Quality (L1-RSRQ), a Signal to Interference plus Noise Ratio (L1-SINR), a Signal to Noise Ratio (L1-SNR), etc.

[0051] CSI may also have multiple parts. CSI part 1 may contain information with a relatively small number of bits (e.g., RI). CSI part 2 may contain information with a relatively large number of bits (e.g., CQI) such as information determined based on CSI part 1.

[0052] In addition, CSI may also be divided into several CSI types. Depending on the CSI type, the types of information reported, the size, etc. may also be different. For example, it may also be specified as a CSI type set for communication using a single beam (which may also be referred to as type I CSI, CSI for single beam, etc.), and a CSI type set for communication using multiple beams (which may also be referred to as type II CSI, CSI for multiple beams, etc.). The usage of the CSI type is not limited to this.

[0053] As a feedback method for CSI, research has been conducted on Periodic CSI (P-CSI) reporting, Aperiodic CSI (A-CSI) reporting, Semi-Persistent CSI (SP-CSI) reporting, etc.

[0054] The UE may also be notified of CSI measurement setting information using higher layer signaling, physical layer signaling, or a combination thereof.

[0055] In the present disclosure, the higher layer signaling may also be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof.

[0056] For example, MAC signaling may also use a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. For example, broadcast information may also be a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

[0057] For example, physical layer signaling may also be Downlink Control Information (DCI).

[0058] For example, CSI measurement setting information may also be set by using the RRC information element "CSI-MeasConfig". The CSI measurement setting information may also include CSI resource setting information (RRC information element "CSI-ResourceConfig"), CSI report setting information (RRC information element "CSI-ReportConfig"), etc. The CSI resource setting information is associated with the resources used for CSI measurement, and the CSI report setting information is associated with how the UE performs CSI reporting.

[0059] Figure 1A And Figure 1B FIG. is an example of an RRC information element related to CSI report setting and CSI resource setting. In this example, an excerpt of the fields (which may also be referred to as parameters) included in the information element is shown. Figure 1A And Figure 1B It is described using the ASN.1 (Abstract Syntax Notation One) recording method. In addition, the figures related to other RRC information elements (or RRC parameters) of the present disclosure are also described using the same recording method.

[0060] AsFigure 1A As shown, the CSI report configuration information (“CSI-ReportConfig”) includes resource information for channel measurement (“resourcesForChannelMeasurement”). In addition, the CSI report configuration information may also include resource information for interference measurement (e.g., NZP CSI-RS resource information for interference measurement (“nzp-CSI-RS-ResourcesForInterference”), CSI-IM resource information for interference measurement (“csi-IM-ResourcesForInterference”), etc.). These resource information corresponds to the ID (Identifier) of the CSI resource configuration information (“CSI-ResourceConfigId”).

[0061] In addition, regarding the ID of the CSI resource configuration information corresponding to each resource information (which may also be referred to as the CSI resource configuration ID), one or more of them may be the same value or may be different values respectively.

[0062] As Figure 1B shown, the CSI resource configuration information (“CSI-ResourceConfig”) may also include the CSI resource configuration information ID, the CSI-RS resource set list information (“csi-RS-ResourceSetList”), the resource type (“resourceType”), etc. The CSI-RS resource set list may also include at least one of the information on NZP CSI-RS and SSB for measurement (“nzp-CSI-RS-SSB”) and the CSI-IM resource set list information (“csi-IM-ResourceSetList”).

[0063] The resource type indicates the time-domain behavior of the resource configuration and can be set to “aperiodic”, “semi-persistent”, “periodic”. For example, the corresponding CSI-RS can also be referred to as A-CSI-RS, SP-CSI-RS, P-CSI-RS respectively.

[0064] In addition, the resources for channel measurement can also be used, for example, in the calculation of CQI, PMI, L1-RSRP, etc. In addition, the resources for interference measurement can also be used in the calculation of L1-SINR, L1-SNR, L1-RSRQ, and other interference-related indicators.

[0065] When interference measurement is performed through CSI-IM, each CSI-RS for channel measurement can also be associated with the CSI-IM resource from the perspective of resources based on the order of the CSI-RS resources and CSI-IM resources in the corresponding resource set.

[0066] "nzp-CSI-RS-SSB" may also include NZP CSI-RS resource set list information ("nzp-CSI-RS-ResourceSetList") and SSB resource set list information for CSI measurement ("csi-SSB-ResourceSetList"). These list information may also correspond to more than 1 NZP CSI-RS resource set ID ("NZP-CSI-RS-ResourceSetId") and CSI-SSB resource set ID ("CSI-SSB-ResourceSetId") respectively, and are used to determine the resources of the measurement object.

[0067] NZP CSI-RS resource set list information ("nzp-CSI-RS-ResourceSetList") may also include NZP CSI-RS resource set ID ("NZP-CSI-RS-ResourceSetId"), and the quantity is the maximum number of NZP CSI-RS resource sets set for each CSI resource ("maxNrofNZP-CSI-RS-ResourceSetsPerConfig"). The maximum number of NZP CSI-RS resource sets set for each CSI resource ("maxNrofNZP-CSI-RS-ResourceSetsPerConfig") may also be at most 16 when the resource type is "aperiodic", and 1 in other cases (when the resource type is "semi-persistent" or "periodic").

[0068] SSB resource set list information for CSI measurement ("csi-SSB-ResourceSetList") may also include CSI-SSB resource set ID ("CSI-SSB-ResourceSetId"), and the quantity is the maximum number of SSB resource sets for CSI measurement set for each CSI resource ("maxNrofCSI-SSB-ResourceSetsPerConfig"). The maximum number of SSB resource sets for CSI measurement set for each CSI resource ("maxNrofCSI-SSB-ResourceSetsPerConfig") may also be 1.

[0069] The CSI-IM resource set list information ("csi-IM-ResourceSetList") may also include the CSI-IM resource set ID ("CSI-IM-ResourceSetId"), the number of which is the maximum number of CSI-IM resource sets per CSI resource setting ("maxNrofCSI-IM-ResourceSetsPerConfig"). The maximum number of CSI-IM resource sets per CSI resource setting ("maxNrofCSI-IM-ResourceSetsPerConfig") may also be up to 16 in the case where the resource type is "aperiodic", and 1 in other cases.

[0070] Figure 2A and Figure 2B is a diagram showing an example of an RRC information element related to the NZP CSI-RS resource set and the CSI-SSB resource set.

[0071] As Figure 2A shown, the NZP CSI-RS resource set information ("NZP-CSI-RS-ResourceSet") includes the NZP CSI-RS resource set ID and one or more NZP CSI-RS resource IDs ("NZP-CSI-RS-ResourceId").

[0072] The NZP CSI-RS resource information ("NZP-CSI-RS-Resource") may also include the NZP CSI-RS resource ID and the ID of the transmission configuration indication state (TCI state) ("TCI-StateId"). The TCI state will be described later.

[0073] As Figure 2B shown, the CSI-SSB resource set information ("CSI-SSB-ResourceSet") includes the CSI-SSB resource set ID and one or more SSB index information ("SSB-Index"). The SSB index information may also be, for example, an integer between 0 and 63, and is used to identify the SSB within the SS burst.

[0074] Figure 3 is a diagram showing an example of an RRC information element related to the TCI state.

[0075] The TCI state refers to information related to Quasi-Co-Location (QCL) of a channel or a signal, and can also be referred to as spatial reception parameters, spatial relation info, etc. The TCI state can also be set or assigned to the UE for each channel or each signal.

[0076] As Figure 3 shown, the TCI state information ("TCI-State") can also include a TCI state ID and one or more QCL information ("QCL-Info"). The QCL information can also include at least one of information related to the reference signal of the QCL source (RS association information ("referenceSignal")) and information indicating the QCL type (QCL type information ("qcl-Type")). The RS association information can also include information such as the index of the RS (e.g., NZP CSI-RS resource ID, SSB index), the index of the serving cell, and the index of the BWP (Bandwidth Part) where the RS is located.

[0077] Regarding at least one of a signal and a channel (expressed as signal / channel), the UE can also control receive processing (e.g., at least one of receiving, demapping, demodulating, decoding, receive beam determination, etc.), transmit processing (e.g., at least one of transmitting, mapping, modulating, encoding, transmit beam determination, etc.), etc. based on the TCI state corresponding to the TCI state ID associated with the signal / channel.

[0078] As Figure 2A shown, regarding P-CSI-RS, the associated TCI state can also be set via RRC. In addition, regarding P-CSI-RS, SP-CSI-RS, and A-CSI-RS, the associated TCI state can also be determined based on higher layer signaling, physical layer signaling, or a combination thereof.

[0079] After Rel. 17 / 18, it is envisaged to support UL transmission using multiple UE panels.

[0080] (Single panel transmission)

[0081] The single panel UL transmission mode or the single panel UL transmission mode candidate can also apply at least one of the following transmission modes A and B (single panel UL transmission modes A and B). In addition, in the present disclosure, the panel / UE panel can also be rewritten as a set of UE capability values reported according to each UE capability (e.g., UE capability value set).

[0082] [UL transmission of single panel single TRP in transmission mode A]

[0083] In Rel. 15 and Rel. 16, the UE uses a transmission mode for UL transmission to one TRP from only one beam and panel at one timing. Figure 4A )

[0084] [Transmission Mode B Single Panel Multiple TRP UL Transmission]

[0085] In Rel. 17, the following scenario is studied, i.e., UL transmission from only one beam and panel is performed at one timing, and repeated transmission to multiple TRPs is performed. ( Figure 4B ). In the Figure 4B example, after the UE transmits a PUSCH from panel #1 to TRP #1 (switching the beam and panel), it transmits a PUSCH from panel #2 to TRP #2. The two TRPs are connected via an ideal backhaul.

[0086] (Multi-Panel Transmission)

[0087] After Rel. 18, in order to improve UL throughput / reliability, research is being conducted on supporting simultaneous UL transmission using multiple panels for more than one TRP (e.g., Simultaneous Transmission across multiple panels (STxMP), or simultaneous multi-panel UL transmission (SiMPUL)). In addition, for specific UL channels (e.g., PUSCH / PUCCH), etc., research is being conducted on multi-panel UL transmission modes.

[0088] As multi-panel UL transmission, for example, it is also possible to support up to X (e.g., X = 2) and up to Y (e.g., Y = 2) panels. In multi-panel UL transmission, when UL precoding indication for PUSCH is supported, the codebook of the existing system (e.g., before Rel. 16) can also be supported for multi-panel simultaneous transmission. Considering multi-TRP operation based on single DCI and multi-DCI, the number of layers can be up to x (e.g., x = 4) across all panels, and the number of codewords (CW) can also be up to y (e.g., y = 2) across all panels.

[0089] Regarding the multi-panel UL transmission mode or multi-panel UL transmission mode candidates, at least one of the following Method 1 to 3 (Multi-Panel UL Transmission Modes 1 to 3) is being studied. It is also possible to support only one of Transmission Modes 1 to 3. It is also possible to support multiple modes including at least one of Transmission Modes 1 to 3, and one of the multiple transmission modes is set for the UE.

[0090] [Transmission Mode 1: Coherent Multi-panel UL Transmission]

[0091] Multiple panels can also be synchronized with each other. All layers are mapped to all panels. Multiple analog beams are indicated. The SRS Resource Indicator (SRI) field can also be extended. This mode can utilize up to 4 layers for UL.

[0092] In Figure 5A 's example, the UE maps 1 codeword (CW) or 1 transport block (TB) to L layers (PUSCH(1, 2, ……, L)), and transmits L layers from each of the 2 panels respectively. Panel #1 is coherent with Panel #2. Transmission Mode 1 can obtain the gain of diversity. The total number of layers in the 2 panels is 2L. When the maximum value of the total number of layers is 4, the maximum value of the number of layers in 1 panel is 2.

[0093] [Transmission Mode 2: Non-coherent Multi-panel UL Transmission of 1 Codeword (CW) or Transport Block (TB)]

[0094] Multiple panels can also be non-synchronized. Different layers are mapped to different panels, and for 1 CW or TB of PUSCH from multiple panels. The layers corresponding to 1 CW or TB can also be mapped to multiple panels. This transmission mode can also utilize a maximum of 4 layers or a maximum of 8 layers for the UE. When supporting a maximum of 8 layers, this transmission mode can also support 1 CW or TB that utilizes a maximum of 8 layers.

[0095] In Figure 5B 's example, the UE maps 1 CW or 1 TB to k layers (PUSCH(1, 2, ……, k)) and L-k layers (PUSCH(k + 1, k + 2, ……, L)), transmits k layers from Panel #1, and transmits L-k layers from Panel #2. Transmission Mode 2 can obtain the gains based on multiplexing and diversity. The total number of layers in the 2 panels is L.

[0096] [Transmission Mode 3: Non-coherent Multi-panel UL Transmission of 2 Codewords (CWs) or Transport Blocks (TBs)]

[0097] Multiple panels can also be non-synchronized. Different layers are applied to different panels, and for 2 CWs or TBs of PUSCH from multiple panels. The layers corresponding to 1 CW or TB can also be mapped to 1 panel. The layers corresponding to multiple CWs or TBs can also be mapped to different panels. This transmission mode can also utilize a maximum of 4 layers or a maximum of 8 layers for the UE. When supporting a maximum of 8 layers, this transmission mode can also support a maximum of 4 layers for each CW or TB.

[0098] In Figure 5CIn the example, the UE can also map CW#1 or TB#1 in two CWs or two TBs to k layers (PUSCH(1, 2, ……, k)), map CW#2 or TB#2 to L - k layers (PUSCH(k + 1, k + 2, ……, L)), send k layers from panel #1, and send L - k layers from panel #2. Transmission mode 3 can obtain the gain based on multiplexing and diversity. The total number of layers in the two panels is L.

[0099] In each of the above transmission modes, the base station can also use UL TCI or panel ID to set or indicate panel - specific transmission for UL transmission. UL TCI (UL TCI state) can also be based on signaling similar to the DL beam indication supported in Rel. 15. The panel ID can also be implicitly or explicitly applied to the transmission of at least one of the target RS resource or target RS resource set, PUCCH, SRS, PRACH. When the panel ID is explicitly notified, the panel ID can also be set in at least one of the target RS, target channel, reference RS (for example, DL RS resource setting or spatial relation information).

[0100] In one or more of the above - mentioned transmission modes, multi - panel UL transmission (for example, Simultaneous Transmission across multiple panels (STxMP), or simultaneous multi - panel UL transmission (SiMPUL)) for PUSCH scheduling based on one DCI (single DCI) / PUSCH scheduling based on multiple DCIs (multi - DCIs) is being studied.

[0101] (Simultaneous Transmission across multiple panels)

[0102] In one or more of the above - mentioned transmission modes, multi - panel UL transmission (for example, STxMP) for PUSCH scheduling based on one DCI (single DCI) / PUSCH scheduling based on multiple DCIs (multi - DCIs) is being studied.

[0103] In simultaneous multi - panel transmission (STxMP) in a multi - TRP system based on a single DCI, the following methods can also be applied to UL transmission (for example, PUSCH).

[0104] ・ Space Division Multiplexing (SDM) method: Different layers / DMRS ports of one PUSCH are precoded separately and sent simultaneously from different UE beams / panels (refer toFigure 6A , Figure 6B ).

[0105] ・Spatial Division Multiplexing (SDM) Repetition Method: Two PUSCH transmission opportunities with different redundancy versions (RVs) having the same transport block (TB) are simultaneously transmitted from two different UE beams / panels on the same time and frequency resources (see Figure 6C ).

[0106] ・Frequency Division Multiplexing (FDM)-A Method: Different parts of the frequency-domain resources of one PUSCH transmission opportunity (e.g., one PUSCH transmission occasion) are transmitted from different UE beams / panels (see Figure 7A ).

[0107] ・FDM-B Method: Two PUSCH transmission opportunities with the same / different RVs having the same TB are transmitted from different UE beams / panels on non-overlapping frequency-domain resources and the same time-domain resources (see Figure 7B ).

[0108] ・SFN-Based Transmission Method: All the same layers / DMRS ports of one PUSCH are simultaneously transmitted from two different UE beams / panels (see Figure 7C ).

[0109] In addition, in the present disclosure, repeated transmission and transmission can also be rewritten with each other. Transmitting multiple transport blocks can also mean transmitting multiple identical transport blocks or transmitting different transport blocks.

[0110] [Spatial Division Multiplexing (SDM)]

[0111] The UE may also assume that PUSCH repeated transmission applying spatial division multiplexing (SDM) is scheduled on the same time resources and the same frequency resources. That is, in the case of using multiple coherent panels, the UE may also transmit PUSCH repeated transmission applying SDM in the same time resources and the same frequency resources.

[0112] Figure 6A is a diagram showing an example of repeated transmission applying SDM by one codeword (CW). In Figure 6A , the time and frequency resources of layer #1-2 and layer #3-4 corresponding to PUSCH / PUCCH are the same.

[0113] Figure 6B is a diagram showing an example of repeated transmission applying SDM by two codewords (CWs). In Figure 6BIn [it], the time and frequency resources of CW#1 and CW#2 corresponding to PUSCH / PUCCH are the same.

[0114] Figure 6C It is a diagram showing an example of repeated transmission applying SDM. In Figure 6C In [it], the time and frequency resources of the first repetition and the second repetition of PUSCH / PUCCH are the same.

[0115] In addition, the PUSCH transmission applying SDM (for example, PUSCH repeated transmission) may also have a structure where at least a part of the time and frequency resources are repeated.

[0116] [Frequency Division Multiplexing (FDM)]

[0117] The UE may also assume that the PUSCH / PUCCH repeated transmission applying Frequency Division Multiplexing (FDM) is scheduled with the same time resources and different frequency resources. That is, in the case of using multiple coherent panels, the UE may also transmit the PUSCH / PUCCH repeated transmission applying FDM with the same time resources and different frequency resources.

[0118] Figure 7A It is a diagram showing the first example of repeated transmission applying FDM (FDM-A). Figure 7A It shows an example where one PUSCH / PUCCH repeated transmission is performed per one TB / UCI.

[0119] Figure 7B It is a diagram showing the second example of repeated transmission applying FDM (FDM-B). Figure 7B It shows an example where two PUSCH / PUCCH repeated transmissions are performed per one TB / UCI.

[0120] Figure 7C It is a diagram showing an example of repeated transmission applying a single frequency network (SFN). Figure 7C It shows an example where one PUSCH / PUCCH is transmitted using different beams / panels per one TB / UCI.

[0121] As Figure 6A , Figure 6B shown, in the case of performing multi-panel simultaneous transmission (STxMP SDM scheme) for non-codebook PUSCH transmission based on spatial division multiplexing, different layers / DMRS ports of one PUSCH can be precoded separately and transmitted simultaneously from different UP panels.

[0122] (UE Capability Value Sets)

[0123] After Rel. 17 NR, it is supported to report a list of UE capability value sets (e.g., UE capability value sets) in the UE capability report (e.g., UE capability report). The UE capability value set can also mean the panel supported / utilized by the UE. The UE capability value set can also be rewritten as the UE capability value (e.g., UE capability value).

[0124] Each UE capability value set in Rel. 17 can also be constituted based on the maximum number of SRS ports supported. For example, when the maximum number of SRS ports is X, the UE reports X (e.g., X = 4) UE capability value sets.

[0125] By the UE reporting a list of UE capability value sets, activation and selection of the UE - led panel can be performed. The UE can also determine the correspondence between the CSI - RS / SSB resource index (CSI / SSBRI) reported and one of the UE capability value sets in the reported list, and notify it to the NW in the beam reporting instance.

[0126] After Rel. 17 NR, to facilitate the activation and selection of the UE - led panel, it is supported for the UE to report a list of UE capability value sets. Each UE capability value set included in this list is constituted by the maximum number of SRS ports supported, and any two UE capability value sets can also be set to be different (or set separately). The UE capability value set can be commonly set in multiple (or all) BWPs / CCs in the same band, or can be commonly set in multiple (or all) BWPs / CCs in the same band combination (BC (band combination)).

[0127] Each UE capability value set in Rel. 17 can also be constituted by the maximum number of SRS ports supported. In addition, after Rel. 18, in addition to (or instead of) being constituted by the maximum number of SRS ports supported, the UE capability value set can also be constituted by at least one of the maximum UL rank, the maximum number of beams, the maximum number of SRS resource sets, the maximum number of SRS resources, the maximum number of SRS resources per set, EIRP, and the transmission power - related capability.

[0128] In the case where multiple (e.g., two) UE capability value sets are set to be different, it can also mean that any two capability value sets have different maximum supported SRS port numbers. Additionally, multiple (e.g., two) UE capability value sets can also have the same capabilities. For example, two UE capability value sets can also have the same maximum supported SRS port number. In this case, two UE capability value sets with the same maximum number of supported SRS ports can also have other parameters (e.g., EIRP) set to be different.

[0129] (Beam Management)

[0130] In Rel. 15 NR, methods for beam management (BM) are discussed. In this beam management, beam selection is performed based on the L1-RSRP reported by the UE. Changing (switching) the beam of a certain signal / channel can also be equivalent to changing at least one of the TCI state and QCL assumption of the signal / channel.

[0131] The UE can also use the uplink control channel (Physical Uplink Control Channel (PUCCH)) or the uplink shared channel (Physical Uplink Shared Channel (PUSCH)) to report (send) measurement results for beam management. The measurement results can also be, for example, CSI including at least one of L1-RSRP, L1-RSRQ, L1-SINR, L1-SNR, etc.

[0132] The measurement results (e.g., CSI) reported for beam management can also be referred to as beam measurement, beam measurement report, beam report, beam report CSI, etc.

[0133] CSI measurements for beam reporting can also include interference measurements. The UE can also use resources for CSI measurements to measure channel quality, interference, etc., and derive a beam report.

[0134] The beam report can include the results of at least one of channel quality measurements and interference measurements. The results of channel quality measurements can also include, for example, L1-RSRP. The results of interference measurements can also include L1-SINR, L1-SNR, L1-RSRQ, other interference-related indicators (e.g., any indicator other than L1-RSRP), etc.

[0135] The CSI report can also be based on the CSI report setting configured by higher layer parameters. Figure 8 is an example of the RRC information element "CSI-ReportConfig" in Rel. 16. Figure 8 Extracts other parts of Figure 1A the same CSI report setting information (CSI-ReportConfig).

[0136] The CSI report setting information can also include information on the parameters reported by one report instance (e.g., one CSI), i.e., the "report quantity" (which can also be expressed by the RRC parameter "reportQuantity"). The report quantity is defined in the form of an ASN.1 object called "choice". Therefore, one of the parameters (cri-RSRP, ssb-Index-RSRP, etc.) specified as the report quantity is configured.

[0137] For a UE in which the higher layer parameters included in the CSI report setting information (e.g., the RRC parameter "groupBasedBeamReporting" related to group-based beam reporting) are configured as invalid (disabled), for each report setting, different beam measurement resource IDs (e.g., SSBRI, CRI) that include the number of higher layer parameters (e.g., the RRC parameter "nrofReportedRS" indicating the number of reported RSs) included in the CSI report setting information, and the measurement results (e.g., L1-RSRP) corresponding to their respective IDs can also be included in the beam report (one report instance).

[0138] For a UE in which groupBasedBeamReporting is configured as valid (enabled), for each report setting, CRI / SSBRI are reported in groups (e.g., CRI / SSBRI of one group). Multiple (e.g., two) CRI / SSBRI are included in this group. It can also mean that multiple (e.g., two) CRI / SSBRI are received by the UE simultaneously.

[0139] For example, a UE for which groupBasedBeamReporting is set to active (enabled) may also include, for each reporting configuration, two different beam measurement resource IDs (e.g., CRI / SSBRI) and two measurement results (e.g., L1-RSRP) corresponding to the respective IDs in the beam report. The two beam measurement resources (CSI-RS resources, SSB resources) can be received by the UE using one spatial domain receive filter, or can be received simultaneously using multiple spatial domain receive filters.

[0140] In addition, Figure 2A the NZP CSI-RS resource set information shown may also include information related to the repetition of resources within the resource set. Information related to the repetition may, for example, also indicate "ON" or "OFF". Additionally, "ON" may also be expressed as "enabled or valid", and "OFF" may also be expressed as "disabled or invalid".

[0141] For example, for a resource set for which repetition is set to "ON", the UE may also assume that the resources within the resource set are transmitted using the same downlink spatial domain transmission filter. In this case, the UE may also assume that the resources within the resource set are transmitted using the same beam (e.g., from the same base station using the same beam).

[0142] For a resource set for which repetition is set to "OFF", the UE may also be controlled such that it cannot assume (or may not assume) that the resources within the resource set are transmitted using the same downlink spatial domain transmission filter. In this case, the UE may also assume that the resources within the resource set are not transmitted using the same beam (transmitted using different beams). That is, for a resource set for which repetition is set to "OFF", the UE may also assume that the base station is performing beam scanning.

[0143] In Rel. 15 NR, cri-RSRP and ssb-Index-RSRP in the reporting quantity are associated with beam management. A UE for which cri-RSRP is set as the reporting quantity reports the CRI and the L1-RSRP corresponding to the CRI. A UE for which ssb-Index-RSRP is set as the reporting quantity reports the SSBRI and the L1-RSRP corresponding to the SSBRI.

[0144] Figure 9 FIG. is an example showing a CSI report in Rel. 15 NR.Figure 9 Indicates the mapping order of the CSI fields included in one CSI report (the n-th CSI report #n) specified in Rel. 15 for CSI / RSRP or SSBRI / RSRP reporting.

[0145] Figure 9 The CSI report can include more than one group of CSI / SSBRI and RSRP. The number of these groups can be set by a higher layer parameter (e.g., the RRC parameter "nrofReportedRS") indicating the number of reference signal resources for the reporting object.

[0146] For L1-RSRP reporting, when nrofReportedRS is set to 1 (with the value "n1"), a field of a specific number of bits (e.g., m bits) of L1-RSRP representing the maximum measured value, i.e., RSRP#1, is included in the CSI report. In Rel. 15 NR, m = 7.

[0147] Regarding L1-RSRP reporting, when nrofReportedRS is set to a value greater than 1, or when groupBasedBeamReporting is set to valid, the UE uses differential L1-RSRP-based reporting. Specifically, the UE includes in the same CSI report (report instance) RSRP#1 of L1-RSRP representing the maximum measured value, and the differential (Differential) RSRP#k calculated with reference to this maximum measured value (e.g., as a difference relative to this measured value) for the k-th (where Figure 9 k = 2, 3, 4 in ) largest L1-RSRP. Here, the differential RSRP#k can be a field of fewer bits (e.g., n bits) than the above specific number. In Rel. 15 NR, n = 4.

[0148] For example, for each group, the report includes the absolute RSRP value of 7 bits (in the range of -140 to -44 dB with a 1 dB step size) for the first beam, and the differential RSRP value of 4 bits for the second beam.

[0149] In addition, when groupBasedBeamReporting is set to valid, the UE includes RSRP#1 and differential RSRP#2 in the same CSI report.

[0150] Figure 9The CSI / SSB RI #k is a field representing the CSI / SSB RI corresponding to RSRP #k or differential RSRP #k (included in the case of reporting RSRP #k or differential RSRP #k).

[0151] In addition, in NR after Rel. 16, nrofReportedRS can be a value of 4 or more, or 4 or more. The CSI report can also include CSI / SSB RI and groups of RSRP of 4 or more. The above m, n, etc. are not limited to 7, 4 respectively.

[0152] In addition, in NR after Rel. 16, L1-SINR reporting can also be performed. For L1-SINR reporting, the content obtained by rewriting RSRP in the above L1-RSRP report as SINR can be applied. In addition, in this case, the settings / parameters for SINR can be different from those for RSRP. For example, the above nrofReportedRS can also be rewritten using nrofReportedRSForSINR representing the number of reference resources for SINR reporting targets.

[0153] For the computation of L1-RSRP, the UE can also be set with a CSI-RS resource setting (Resource Setting) of up to 16 CSI-RS resource sets, each containing up to 64 resources in all resource sets. The total number of different CSI-RS resources in all resource sets can also be 128 or less.

[0154] For the computation of L1-SINR, in channel measurement, the UE can also be set with a CSI-RS resource setting of up to 16 CSI-RS resource sets, which in total contain up to 64 CSI-RS resources or up to 64 SS / PBCH blocks.

[0155] For a UE with information on the CSI aperiodic trigger state list (higher layer parameter "CSI-AperiodicTriggerStateList") set, when there are multiple aperiodic resource sets for one resource setting linked to CSI-ReportConfig, only one aperiodic CSI-RS resource of this resource setting is associated with the trigger state. At this time, this UE can also be set by the higher layer for each trigger state and for each resource setting so as to select one CSI-IM / NZP CSI-RS resource set from this resource setting.

[0156] The UE may also not assume the following situation: in the channel measurement resource setting of the CSI-ReportConfig where the reporting quantity (higher-layer parameter reportQuantity) is set to "none", "cri-RI-CQI", "cri-RSRP", "ssb-Index-RSRP", "cri-SINR", or "ssb-Index-SINR", at least one of the NZP CSI-RS resources and the SS / PBCH block resources set to exceed 64.

[0157] When the UE is set with a CSI-ReportConfig, and the reporting quantity (higher-layer parameter reportQuantity) in this CSI-ReportConfig is set to "cri-RSRP", "cri-SINR", or "none", and this CSI-ReportConfig is linked to the resource setting where the higher-layer parameter resourceType is set to "aperiodic", the UE may also not assume the following situation, that is, the CSI-RS resources set to exceed 16 in the CSI-RS resource set included in this resource setting.

[0158] When the UE is configured with a CSI-ReportConfig, and the reporting quantity (the higher-layer parameter reportQuantity) in this CSI-ReportConfig is configured as "cri-RSRP", "cri-RI-PMI-CQI", "cri-RI-i1", "cri-RI-i1-CQI", "cri-RI-CQI", "cri-RI-LI-PMI-CQI", or "cri-SINR", and the resources for channel measurement in the corresponding resource set are configured with 2 or more, the UE can also derive CSI parameters other than CRI based on the reported CRI. Here, CRI k (k≥0) corresponds to the k+1-th configured entry of the associated nzp-CSI-RS-Resource within the corresponding NZP-CSI-RS-ResourceSet for channel measurement, and the k+1-th entry of the associated csi-IM-Resource within the csi-IM-ResourceSet, or the k+1-th entry of the associated nzp-CSI-RS-Resource within the corresponding NZP-CSI-RS-ResourceSet for interference measurement (when reportQuantity in the CSI-ReportConfig is configured as "cri-SINR"). When 2 CSI-RS resources are configured, each resource can contain at most 16 CSI-RS ports. When 3 or more and 8 or fewer CSI-RS resources are configured, each resource can also contain at most 8 CSI-RS ports.

[0159] When the UE is configured with a CSI-ReportConfig, and the reporting quantity (the higher-layer parameter reportQuantity) in this CSI-ReportConfig is configured as "ssb-Index-RSRP", the UE can also report SSBRI. Here, SSBRI k (k≥0) can also correspond to the k+1-th configured entry in the associated csi-SSB-ResourceList within the corresponding CSI-SSB-ResourceSet.

[0160] When CSI-ReportConfig is configured and the reporting quantity (higher layer parameter reportQuantity) in the CSI-ReportConfig is configured as "ssb-Index-SINR", the UE can also derive the L1-SINR based on the reported SSBRI. Here, the SSBRI k (k≥0) can also correspond to the k+1th configured entry in the associated csi-SSB-ResourceList within the CSI-SSB-ResourceSet for corresponding channel measurement, the k+1th entry of the associated csi-IM-Resource in the csi-IM-ResourceSet, or the k+1th entry of the associated nzp-CSI-RS-Resource in the NZP-CSI-RS-ResourceSet for corresponding interference measurement.

[0161] (Enhanced Group-Based Beam Reporting)

[0162] For future wireless communication systems (e.g., after Rel. 17), research is being conducted on extensions related to beam management for user terminals (user terminal, User Equipment (UE)) with multiple panels (multi-panel), multiple transmission / reception points (multi-transmission / reception point (Transmission / Reception Point (TRP))), etc. (e.g., it can also be referred to as beam reporting suitable for multiple TRPs, enhanced group-based beam reporting).

[0163] The above groupBasedBeamReporting can report for one group containing multiple (e.g., 2) CRI / SSBRI with one report, so it is suitable for scenarios such as multi-TRP transmission and multi-panel reception. For example, it can be used to report the best beam of TRP1 as RSRP#1 and the best beam of TRP2 as differential RSRP#2.

[0164] In Rel. 15 and 16, UEs for which group-based beam reporting is configured to be effective can only report one group containing 2 different CRI / SSBRI (which can also be referred to as beam indices) for each reporting configuration. Therefore, for Rel. 17, it is envisioned to extend the number of groups that can be reported through group-based beam reporting.

[0165] For example, two resource sets for channel measurement (e.g., CMR sets) can be configured / triggered as periodic / semi-persistent / aperiodic resource types. The two resource sets for channel measurement (e.g., CMR sets) can also be, for example, two CSI-SSB-resource sets / two NZP-CSI-RS resource sets. The UE can also be configured to be able to report groups of up to 4 CRI / SSBRI. Additionally, the number of groups that can be reported (or, candidates 1 / 2 / 3 / 4) can be configured by a higher layer parameter.

[0166] Each group has multiple (e.g., 2) CRI / SSBRI, and the CRI / SSBRI of each group are respectively selected from two CSI resource sets for reporting configuration (e.g., report setting). In addition, the two CRI / SSBRI of each group can also mean that the UE can receive simultaneously (e.g., receive simultaneously using one spatial domain reception filter).

[0167] Figure 10 It is a diagram showing an example of CSI reporting in the case of enhanced group-based beam reporting. In Figure 10 it shows the mapping order of CSI fields included in one report (e.g., the nth CSI report #n) for group-based CSI / RSRP or SSBRI / RSRP reporting.

[0168] The CSI report can also include up to X (e.g., X = 4) resource groups. Each group includes multiple (e.g., 2) CRI / SSBRI. Here, as each resource group, the case of including CRI or SSBRI#1 and CRI or SSBRI#2 is shown.

[0169] The CSI field can also include a resource set indicator (e.g., Resource set indicator). By the value of the resource set indicator, it can also indicate the channel measurement resource set for the CRI or SSBRI#1 of the first reported resource group. For example, it can be that a 1-bit resource set indicator with a value of 0 or 1 respectively represents the first or second channel measurement resource set, from which the CRI or SSBRI#1 of the first resource group is reported. All the remaining resource groups (e.g., when there are other resource groups to be reported) follow the same mapping order as the first resource group. For example, the CRI or SSBRI#1 of all the remaining resource groups can also be reported (or selected) from the channel measurement resource set indicated by the resource set indicator.

[0170] That is, the CRI or SSBRI #1 of each group can also be reported (or selected) from the resource set indicated by a resource set indicator (e.g., Resource set indicator), and the CRI or SSBRI #2 is reported (or selected) from other resource sets. Similarly, in all resource groups, the CRI or SSBRI #1 and the CRI or SSBRI #2 can be reported from different channel measurement resource sets.

[0171] In addition, the RSRP corresponding to the beam index (e.g., CRI or SSBRI) of each resource group is reported. For example, the RSRP of the CRI or SSBRI of a specific group can also be reported, and for other RSRPs, the difference from the RSRP of the CRI or SSBRI of the specific group is reported. The RSRP of the CRI or SSBRI of a specific group can also be the RSRP of the CRI or SSBRI #1 of the first resource group.

[0172] Enhanced group-based beam reporting can also be set (or set to be enabled / activated) by a specific higher-layer parameter (e.g., groupBasedBeamReporting-r17). Alternatively, enhanced group-based beam reporting can also be determined to be enabled when setting a higher-layer parameter related to the number of groups to be reported (e.g., nrofReportedGroups-r17).

[0173] As described above, after Rel. 18, research is being conducted on supporting simultaneous UL transmission using multiple panels (e.g., Simultaneous Transmission across multiple panels (STxMP), or simultaneous multi-panel UL transmission (SiMPUL)) for one or more TRPs (e.g., multi-TRP).

[0174] In the group-based beam reporting of Rel. 15 / 16 / 17, the UE can indicate that two CRIs / SSBRIs of each group can be received by the UE simultaneously through the group reporting the CRI / SSBRI. In this disclosure, this reporting can also be referred to as DL group-based beam reporting.

[0175] Regarding simultaneous multi-panel UL transmission after Rel. 18, the UE needs to report whether the UE can transmit two beams simultaneously. Thereby, the base station can know which beam is indicated / utilized for simultaneous multi-panel UL transmission. For example, the UE can also indicate that two beams (or beam indices) of each group can be transmitted by the UE simultaneously through beam group reporting. In this disclosure, this report can also be referred to as UL group-based beam reporting. UL group-based beam reporting can also apply the same mechanism as the group-based beam reporting supported in Rel. 15 / 16 / 17.

[0176] When performing UL group-based beam reporting, how to perform this reporting becomes a problem. For example, how to control the relationship (e.g., reporting method) between UL group-based beam reporting and DL group-based beam reporting becomes a problem.

[0177] More specifically, whether UL group-based beam reporting and DL group-based beam reporting are reported together or separately becomes a problem. Or, how to set / enable / activate UL group-based beam reporting becomes a problem.

[0178] The inventors of the present invention noticed the introduction / support of UL group-based beam reporting, studied the control method of this UL group-based beam reporting, and came up with this embodiment.

[0179] Hereinafter, with reference to the drawings, embodiments related to the present disclosure will be described in detail. The wireless communication methods related to each embodiment can be applied separately or in combination.

[0180] In this disclosure, "A / B", "at least one of A and B", and "A and B" can also be rewritten with each other. In this disclosure, "A / B / C", "at least one of A, B, and C", and "A, B, and C" can also be rewritten with each other.

[0181] In this disclosure, cell, serving cell, CC, carrier, BWP, DL BWP, UL BWP, active DL BWP, active UL BWP, band can also be rewritten with each other.

[0182] In this disclosure, index, ID, indicator, resource ID can also be rewritten with each other.

[0183] In this disclosure, support, control, be able to control, perform an operation, be able to operate can also be rewritten with each other.

[0184] In addition, in the present disclosure, a panel (receiving panel), an uplink (Uplink (UL)) transmission entity, a TRP, a spatial relationship, a control resource set (COntrol REsource SET (CORESET)), a PDSCH, a codeword, a base station, an antenna port (e.g., a demodulation reference signal (DeModulation Reference Signal (DMRS)) port), an antenna port group (e.g., a DMRS port group), a group (e.g., a code division multiplexing (Code Division Multiplexing (CDM)) group, a reference signal group, a CORESET group, a CORESET pool), a reference signal setting, a reference signal set setting, etc. may also be rewritten with each other.

[0185] A panel identifier (Identifier (ID)) and a panel may also be rewritten with each other. A TRP ID and a TRP may also be rewritten with each other.

[0186] In addition, in the present disclosure, a group, a set, a cluster, a panel, a group related to (reported) beams, etc. may also be rewritten with each other.

[0187] In the following embodiments, a beam index / beam ID may also be rewritten as, for example, a CRI / SSBRI. In addition, an RSRP / SINR may also be rewritten as a measurement result associated with an arbitrary beam.

[0188] In addition, a name associated with CSI-RS may also be rewritten as a corresponding name associated with SSB. For example, a CSI-RS resource may also be rewritten as an SSB resource. In other words, CSI-RS may also be rewritten as CSI-RS / SSB. A CRI may also be rewritten as CRI / SSBRI.

[0189] In addition, in the present disclosure, a "receiving panel" may also correspond to at least one of the following: an RS group, a TRP index, a CORESET pool index, an RS group set for group-based beam reporting, a TCI state (or, TCI) pool, a QCL assumption (or QCL) group, a beam group.

[0190] In addition, in the present disclosure, "at the same position" may also be rewritten as "the same i-th", "corresponding to the same TRP", etc. In addition, in the present disclosure, "the i-th" may also mean the i-th included in a certain CSI report, or may also mean the i-th included in a certain group of a certain CSI report.

[0191] In the present disclosure, terms such as "set", "CMR set", and "CMR resource set" can also be rewritten with each other. In addition, in the present disclosure, "SSBRI / CRI" and "CMR index" can also be rewritten with each other. In addition, in the present disclosure, "RSRP / SINR" can also be rewritten with "L1-RSRP / L1-SINR / L3-RSRP / L3-SINR". Additionally, L3 can also mean Layer 3.

[0192] (Wireless communication method)

[0193] The UE can also perform group-based beam reporting related to UL transmission (hereinafter, also referred to as UL group-based beam reporting) in the CSI report. The UL group-based beam reporting can be performed in the same CSI report #n (e.g., one report index) as the DL group-based beam reporting, or in a CSI report different from the DL group-based beam reporting.

[0194] For example, the UE can also apply at least one of the following options 1 to 3 for the UL group-based beam reporting.

[0195] [Option 1]

[0196] When a specific higher-layer parameter is set and simultaneous UL transmission (e.g., STxMP) is set (e.g., set to enabled), the UE controls to report one or more specific beam pairs. The specific beam pair can also be a pair of two beams that can be simultaneously received and transmitted by the UE.

[0197] The specific higher-layer parameter can be, for example, a higher-layer parameter that sets the validity (e.g., enabled) / invalidity of the group-based beam reporting in Rel.15 / 16 / 17, or a higher-layer parameter that makes the application of Option 1 valid (e.g., a new higher-layer parameter). That is, when the settings of the group-based beam reporting and the simultaneous UL transmission are both set, the UE can also perform the DL group-based beam reporting and the UL group-based beam reporting in one CSI report.

[0198] When performing the UL group-based beam reporting and the DL group-based beam reporting in the same CSI report, either the same fields can be used for both the UL group-based beam reporting and the DL group-based beam reporting, or different fields can be used.

[0199] [Option 2]

[0200] UL group-based beam reporting can also be supported separately from DL group-based beam reporting (e.g., Rel. 17 group beam reporting). When the UE is configured with specific higher-layer parameters, it can also be controlled to report more than one beam pair. A beam pair can also be a pair of two beams that the UE can transmit simultaneously.

[0201] Specific higher-layer parameters can be, for example, the higher-layer parameters that configure the validity (e.g., enabled / disabled) of group-based beam reporting in Rel. 15 / 16 / 17, or the higher-layer parameters that make the application of Option 1 valid.

[0202] [Option 3]

[0203] The same UE capability value set can also be supported using the Rel. 17 UE capability valueset report framework (e.g., Rel-17 capability valueset report framework). In this case, two beams with different UE capability value set indices can be transmitted simultaneously by the UE.

[0204] The UE can also receive information related to a CSI resource set that includes more than one (e.g., multiple) CRI / SSBRI. The UE can also measure the CSI-RS / SSB resources corresponding to the CRI / SSBRI included in the CSI resource set and report the measurement results (e.g., CRI / SSBRI) as group-based beam reporting.

[0205] The UE receives at least one of the information related to the CSI resource set (or CRI / SSBRI) used in DL group-based beam reporting and the information related to the CSI resource set (or CRI / SSBRI) used in UL group-based beam reporting. This information can also be configured for the UE through specific higher-layer parameters.

[0206] The CSI resource set (or CRI / SSBRI) used in UL group-based beam reporting can also be configured commonly with the CSI resource set (or CRI / SSBRI) used in DL group-based beam reporting. Alternatively, the CSI resource set (or CRI / SSBRI) used in UL group-based beam reporting can be configured separately from the CSI resource set (or CRI / SSBRI) used in DL group-based beam reporting.

[0207] <First Embodiment>

[0208] In the first embodiment, an example of group-based beam reporting related to UL transmission is described. The first embodiment can also be suitably applied when Option 1 described above is applied. Of course, it is not limited to this.

[0209] Under specific conditions, the UE can also perform UL group-based beam reporting in common with DL group-based beam reporting. The specific conditions can also be those set / indicated by more than one higher layer parameter / MAC CE / DCI. For example, in the case where a first setting (e.g., a first higher layer parameter) that sets group-based beam reporting to be valid and a second setting (e.g., a second higher layer parameter / DCI) that sets simultaneous UL transmission to be valid are set, the UE can also include a beam pair that can be received simultaneously and can be transmitted simultaneously (e.g., a beam pair that can be received + transmitted simultaneously) in the beam report.

[0210] For example, for DL group-based beam reporting (e.g., DL group-based beam report) and UL group-based beam reporting (e.g., UL group-based beam report), the UE can also report a common group of beams (e.g., common group(s) of beams). In this disclosure, groups, beam groups, and resource groups can also be rewritten with each other.

[0211] For each group, the UE can receive (or support receiving) a beam group (multiple beam indices included in the same group) simultaneously, and can also transmit (or support transmitting) the beam group (multiple beam indices included in the same group) simultaneously.

[0212] The UE can also perform UL group-based beam reporting using at least one of the following options 1-1 to 1-4.

[0213] [Option 1-1]

[0214] The UE can also report multiple (e.g., 2) CRI / SSBRI (1 group) in one reporting instance (e.g., single reporting instance). It can also be that the UE can receive (or support receiving) 2 CRI-RS / SSB resources simultaneously and can also transmit (or support transmitting) 2 CSI-RS / SSB resources simultaneously.

[0215] The UE's ability to transmit 2 CSI-RS / SSB resources simultaneously can also mean that the UE can transmit (or support transmitting) 2 UL transmissions whose spatial relationships are associated with 2 CSI-RS / SSB resources simultaneously. In other words, the UE can also support transmitting 2 UL transmissions that have spatial relationships (or TCI states / quasi co-location / UL resources) respectively associated with 2 CSI-RS / SSB resources included in the same group.

[0216] Figure 11 This is a diagram showing an example of CSI reporting in the case of jointly performing DL group-based beam reporting and UL group-based beam reporting. In Figure 11 it, the mapping order of CSI fields included in one report (e.g., the n-th CSI report #n) for group-based CSI-RSRP or SSBRI / RSRP reporting is shown.

[0217] In addition, for the CSI reports shown in the following descriptions, the order of fields can also be appropriately replaced. Further, for the CSI reports shown in the following descriptions, RSRP can also be rewritten as SINR. Moreover, for the CSI reports shown in the following descriptions, in the case where one CSI-RS resource set (e.g., a single CSI-RS resource set) is configured, it can also be structured to not include a Resource set indicator field.

[0218] Here, the case of reporting CRI / SSBRI#1 and CRI / SSBRI#2 (one group) as group-based beam reporting is shown. In this case, it can also mean that the UE can simultaneously receive CRI / SSBRI#1 and CRI / SSBRI#2 included in the same group and can simultaneously transmit two UL transmissions associated with CRI / SSBRI#1 and CRI / SSBRI#2 included in the same group. In the present disclosure, CRI / SSBRI can also be rewritten as CSI-RS / SSB resources.

[0219] [Option 1-2]

[0220] The UE can also report multiple (e.g., two) CRI / SSBRI of N groups in one reporting instance (e.g., single reporting instatnce). In this case, it can also be that the UE can simultaneously receive (or support receiving) two CSI-RS / SSB resources of each group and can simultaneously transmit (or support transmitting) two CSI-RS / SSB resources of each group.

[0221] The number of groups (e.g., N) can either be predefined in the specification or be configured through a higher-layer parameter related to the number of groups (e.g., nrofReportedRSgroup). Additionally, in the case of N = 1, Option 1-1 can also be applied.

[0222] Figure 12 This is a diagram showing an example of CSI reporting in the case of jointly performing DL group-based beam reporting and UL group-based beam reporting. In Figure 12In this case, the situation where CRI / SSBRI (here, CRI / SSBRI#1 and CRI / SSBRI#2) reporting N (here, N = 4) resource groups is shown.

[0223] In this case, it can also be meant that: The UE can simultaneously receive CRI / SSBRI#1 and CRI / SSBRI#2 included in the same group, and can simultaneously send two UL transmissions associated with CRI / SSBRI#1 and CRI / SSBRI#2 included in the same group.

[0224] [Option 1-3]

[0225] The UE can also report multiple (e.g., two) CRI / SSBRI of N groups in one reporting instance (e.g., single reporting instatnce). In this case, it can also be that the UE can simultaneously receive two CSI-RS / SSB resources of each group (e.g., each of the N groups), and for M of the N (N≥M or N>M) groups, can simultaneously send two CSI-RS / SSB resources of each group.

[0226] The number of groups (e.g., at least one of N and M) can be either predefined in the specification or set by a higher-layer parameter related to the number of groups (e.g., nrofReportedRSgroup). In addition, information indicating whether it is a beam pair that each group can simultaneously send (or whether UL group-based beam reporting is included) can also be included in the CSI field.

[0227] For example, in the CSI field, an indication field of X bits (e.g., X = 1 or 2) corresponding to each resource group can also be set, and using this indication field (e.g., 1 bit) to indicate whether the beam pair of each resource group is a pair that can be simultaneously received or a pair that can be simultaneously received + can be simultaneously sent. Or, an indication field corresponding to each resource group can also be used to indicate whether the beam pair of each resource group is a pair that can be simultaneously received, a pair that can be simultaneously sent, or a pair that can be simultaneously received + can be simultaneously sent.

[0228] The indication field can also be set commonly for multiple resource groups. In this case, for the multiple resource groups, whether the beam pair of each resource group is a pair that can be simultaneously received or a pair that can be simultaneously received + can be simultaneously sent can also be set commonly.

[0229] 《Option 1-3-1》

[0230] It can also be set that: For the first / last M groups of the N groups, the UE can simultaneously send CSI-RS / SSB resources of each group (see Figure 13). Alternatively, M can also be indicated by an indication field set in the CSI field.

[0231] Figure 13 FIG. shows a case where, for the first two groups out of 4 groups (N = 4, M = 2), UL group-based beam reporting and DL group-based beam reporting are performed in a shared manner. In this case, the UE can also indicate, for the first two groups out of 4 groups, that the UE is capable of simultaneously transmitting CSI-RS / SSB resources for each group. For the other groups, it can also correspond only to DL group-based beam reporting.

[0232] Option 1-3-1 can also be the default operation / default setting.

[0233] 《Option 1-3-2》

[0234] It can also be set to the following structure: for each group, it is indicated by beam reporting (e.g., via a 1-bit indication field for each group) whether the UE is capable of simultaneously transmitting two CSI-RS / SSB resources for that group (see Figure 14 ).

[0235] Figure 14 FIG. shows a case where the following fields are set: a field indicating the group among 4 groups where UL group-based beam reporting and DL group-based beam reporting are performed in a shared manner, or the group where the UE is capable of simultaneously transmitting two CSI-RS / SSB resources. Here, a case where indicators (here, 1 bit) indicating the application of UL group-based beam reporting for each group (here, 1 to 4) are respectively set is shown. In addition, a case where DL group-based beam reporting is performed for each group is shown.

[0236] When the identifier indicating the applicability of UL group-based beam reporting to a resource group (e.g., Identifier of applicability to UL group-based beam reporting for resource group) is set to 0, it can also be indicated that two CSI-RS / SSB resources within the resource group are simultaneously received by the UE and further simultaneously transmitted. In other cases (e.g., when the identifier is set to 1), it can also be indicated that the UE only simultaneously receives two CSI-RS / SSB resources within the resource group.

[0237] In Figure 14In this case, for the first resource group and the second resource group, the identifier is set to 0, and for the third resource group and the fourth resource group, the identifier is set to 1. Thus, it is possible to flexibly set whether to perform UL group-based beam reporting and DL group-based beam reporting in a shared manner for each resource group. In addition, the contents indicated by 0 and 1 of the identifier can also be replaced.

[0238] [Option 1-4]

[0239] The UE may also report multiple (e.g., 2) CRI / SSBRI of N groups in one reporting instance (e.g., single reporting instatnce). In this case, it may also be that the UE can simultaneously transmit 2 CSI-RS / SSB resources for each group (e.g., each of the N groups), and for M of the N groups (N≥M or N>M), the UE can simultaneously receive 2 CSI-RS / SSB resources for each group.

[0240] The number of groups (e.g., at least one of N and M) may be either predefined in the specification or set by a higher layer parameter related to the number of groups (e.g., nrofReportedRSgroup).

[0241] 《Option 1-4-1》

[0242] It may also be set that for the first / last M groups among the N groups, the UE can simultaneously receive the CSI-RS / SSB resources for each group (see Figure 15 ).

[0243] Figure 15 The case of setting the following fields is shown: a field indicating the group among the 4 groups for which UL group-based beam reporting and DL group-based beam reporting are performed in a shared manner, or the group for which the UE can simultaneously receive 2 CSI-RS / SSB resources. Here, the case where indicators (here, 1 bit) indicating the application of DL group-based beam reporting for each group (here, 1 to 4) are respectively set is shown. In addition, the case where UL group-based beam reporting is performed for each group is shown.

[0244] Option 1-4-1 may also be the default operation / default setting.

[0245] 《Option 1-4-2》

[0246] It may also be set to the following structure: for each group, use beam reporting (e.g., via a 1-bit indication field for each group) to indicate whether the UE can simultaneously transmit 2 CSI-RS / SSB resources for that group (see Figure 16 ).

[0247] Figure 16The case where an indication field is set as follows is shown: an indication field indicating a group among 4 groups in which UL group-based beam reporting and DL group-based beam reporting are performed in a shared manner, or a group in which a UE can receive 2 CSI-RS / SSB resources simultaneously. Here, the case where indicators (here, 1 bit) indicating the application of DL group-based beam reporting for each group (here, 1 to 4) are respectively set is shown. In addition, the case where UL group-based beam reporting is performed for each group is shown.

[0248] When an identifier (e.g., Identifierof applicability to DL group-based beam reporting for resource group) indicating the applicability of DL group-based beam reporting for a resource group is set to 0, it may also be indicated that 2 CSI-RS / SSB resources within the resource group are received simultaneously by the UE and further transmitted simultaneously. In other cases (e.g., when the identifier is set to 1), it may also be indicated that the UE transmits 2 CSI-RS / SSB resources within the resource group simultaneously.

[0249] In Figure 16 it is shown that for the first resource group and the second resource group, the identifier is set to 0, and for the third resource group and the fourth resource group, the identifier is set to 1. Thus, it is possible to flexibly set whether UL group-based beam reporting and DL group-based beam reporting are performed in a shared manner for each resource group. In addition, the contents indicated by 0 and 1 of the identifier may also be replaced.

[0250] It is also possible to apply at least one of the following Alt.1-1 to Alt.1-2 to the above Options 1-1 to 1-4.

[0251] [Alt.1-1]

[0252] When 1 CSI resource set is set, 2 CSI-RS / SSB resources for each group may also be selected from 1 CSI resource set.

[0253] [Alt.1-2]

[0254] When 2 CSI resource sets are set, 2 CSI-RS / SSB resources for each group may also be selected from 2 CSI resource sets respectively.

[0255] In this case, the resource set indicator (e.g., resource set indicator) field is included in the CSI report, and the resource set indicator can also indicate the same meaning as the Rel.17 group-based beam report. For example, the channel measurement resource set of the CRI or SSBRI#1 of the first resource group to be reported can also be indicated by the value of the resource set indicator. For example, it can also be that a 1-bit resource set indicator with a value of 0 or 1 represents the first or second channel measurement resource set respectively, from which the CRI or SSBRI#1 of the first resource group is reported. All the remaining resource groups (e.g., in the case where there are other resource groups to be reported) follow the same mapping order as the first resource group. For example, the CRI or SSBRI#1 of all the remaining resource groups can also be reported (or selected) from the channel measurement resource set indicated by the resource set indicator.

[0256] [Change]

[0257] The CSI-RS / SSB resources for UL group-based beam reporting can also be different from the CSI-RS / SSB resources for DL group-based beam reporting. For example, the resources for UL can also be a subset of the resources for DL.

[0258] For example, in the case where X CSI-RS / SSB resources are set in the CSI resource set, it can also be that all the resources are used for DL group-based beam reporting and a part of the resources are used for UL group-based beam reporting. The part of the resources can also be the first / last Y resources. Y can be defined in the specification or set for the UE through higher layer parameters, etc.

[0259] Alternatively, for each CSI-RS / SSB resource, it can also be explicitly set / indicated whether it is used for both DL group-based beam reporting and UL group-based beam reporting, only for DL group-based beam reporting, or only for UL group-based beam reporting. In addition, setting / indicating two of "for beam reporting for both DL and UL group-based", "only for DL group-based beam reporting", and "only for UL group-based beam reporting" can also be supported.

[0260] For DL group-based beam reporting, the maximum number of CSI-RS / SSB resources in the CSI resource set can be defined or set through higher layer parameters, etc. For example, this maximum number can also be the same as or greater than that in Rel.17. For example, this maximum number can also be 64 or 128. This maximum number can also be determined considering the UE capabilities.

[0261] For UL group-based beam reporting, the maximum number of CSI-RS / SSB resources within a CSI resource set can be either defined or set via higher layer parameters, etc. For example, this maximum number can also be the same as or less than the maximum number for DL group-based beam reporting. For example, this maximum number can also be 32 or 64. This maximum number can also be determined considering the UE capabilities.

[0262] For both DL group-based beam reporting and UL group-based beam reporting, the maximum number of CSI-RS / SSB resources within a CSI resource set can be either defined or set via higher layer parameters, etc.

[0263] <Second Embodiment>

[0264] In the second embodiment, other examples of group-based beam reporting related to UL transmission are described. The second embodiment can also be suitably applied when applying the above Option 1. Of course, it is not limited thereto.

[0265] Under certain conditions, the UE can also perform UL group-based beam reporting and DL group-based beam reporting in one CSI report. The certain conditions can also be the case where they are set / indicated via one or more higher layer parameters / MAC CE / DCI. For example, in the case where a first setting (e.g., a first higher layer parameter) that sets group-based beam reporting to be valid and a second setting (e.g., a second higher layer parameter / DCI) that sets simultaneous UL transmission to be valid are set, the UE can also use different fields of the beam report to report beam pairs that can be received simultaneously and beam pairs that can be transmitted simultaneously.

[0266] In a single reporting instance (e.g., single reporting instance), the UE can also report separate beam groups for DL group-based beam reporting and UL group-based beam reporting.

[0267] For the group corresponding to DL, the UE can simultaneously receive (or support simultaneous reception of) a beam group (multiple beam indices included in the same group), and for the group corresponding to UL, the UE can simultaneously transmit (or support simultaneous transmission of) a beam group (multiple beam indices included in the same group).

[0268] Information indicating whether each group is for DL group-based beam reporting (or a beam pair that can be received simultaneously) or UL group-based beam reporting (or a beam pair that can be transmitted simultaneously) can also be included in the CSI field.

[0269] The UE can also perform UL group-based beam reporting using at least one of the following Option 2-1 to Option 2-2.

[0270] [Option 2-1]

[0271] The UE can also report multiple (e.g., 2) CRI / SSBRI (more than 1 set) in 1 reporting instance (e.g., single reporting instatnce). In this case, it can also mean that the UE can receive (or support receiving) 2 CRI-RS / SSB resources simultaneously.

[0272] In addition, the UE can also perform UL group-based beam reporting using a CRI / SSBRI or resource group that is different from at least one of the CRI / SSBRI and resource group for DL group-based beam reporting. For example, the UE can use at least one of the following Option 2-1-1 to Option 2-1-2.

[0273] 《Option 2-1-1》

[0274] The UE can also report one or more (e.g., 2) other CRI / SSBRI that are different from the CRI / SSBRI for DL group-based use. In this case, it can also mean that it can transmit (or support transmitting) these other 2 CSI-RS / SSB resources simultaneously (see Figure 17 ).

[0275] Figure 17 FIG. is an example of CSI reporting in the case of performing DL group-based beam reporting and UL group-based beam reporting separately (either using different CRI / SSBRI or using different fields). In Figure 17 , the mapping order of the CSI fields included in 1 report (e.g., the nth CSI report #n) for group-based CSI-RSRP or SSBRI / RSRP reporting is shown.

[0276] Here, the case of reporting CRI / SSBRI #1 and CRI / SSBRI #2 for DL group-based beam reporting and reporting CRI / SSBRI #3 and CRI / SSBRI #4 for UL group-based beam reporting is shown. In addition, CRI / SSBRI #1 to #4 can also correspond to the same resource group (1 group). In addition, for the CRI / SSBRI corresponding to UL group-based beam reporting, other fields (e.g., indication fields) can also be used for indication.

[0277] 《Option 2-1-2》

[0278] The UE can also report M other resource groups that are different from the resource group for DL group-based use. In this case, it can also mean that it can transmit (or support transmitting) 2 CSI-RS / SSB resources for each of these other M resource groups simultaneously (seeFigure 18 ).

[0279] Figure 18 This is an example of a CSI report in the case where DL group-based beam reporting and UL group-based beam reporting are performed separately (or using different resource groups). In Figure 18 , it shows the case where CRI / SSBRI#1 and CRI / SSBRI#2 of one resource group are reported for DL group-based beam reporting, and CRI / SSBRI#1 and CRI / SSBRI#2 of the first resource group and CRI / SSBRI#1 and CRI / SSBRI#2 of the second resource group are reported for UL group-based beam reporting.

[0280] The number of resource groups for UL group use (e.g., M) can be either predefined in the specification or set by a higher layer parameter related to the number of groups (e.g., nrofReportedRSgroup). Alternatively, an indication field indicating M can also be set in the CSI field.

[0281] [Option 2-2]

[0282] The UE can also report multiple (e.g., 2) CRI / SSBRI for N groups in one reporting instance (e.g., single reporting instatnce). In this case, it can also mean that the UE can receive (or support receiving) 2 CRI-RS / SSB resources for each group simultaneously.

[0283] The number of groups (e.g., N) can be either predefined in the specification or set by a higher layer parameter related to the number of groups (e.g., nrofReportedRSgroup). Additionally, in the case of N = 1, Option 2-1 can also be applied.

[0284] In addition, the UE can also perform UL group-based beam reporting using a CRI / SSBRI or a resource group different from at least one of the CRI / SSBRI and the resource group for DL group-based beam reporting. In addition, information indicating which of the DL group-based beam reporting (or beam pairs that can be received simultaneously) and UL group-based beam reporting (or beam pairs that can be transmitted simultaneously) each group corresponds to can also be included in the CSI field.

[0285] For example, it can also be that an indication field of X bits (e.g., X = 1 or 2) corresponding to each resource group is set in the CSI field, and this indication field (e.g., 1 bit) is used to indicate whether the beam pair of each resource group is a pair that can be received simultaneously or a pair that can be transmitted simultaneously.

[0286] Alternatively, indication fields corresponding to respective resource groups can also be used to indicate whether the beam pairs of each resource group are pairs that can be received simultaneously, pairs that can be transmitted simultaneously, or pairs that can be received simultaneously + transmitted simultaneously. In this case, it can also be that one beam pair corresponds to DL group-based reporting, one beam pair corresponds to DL group-based reporting, and one beam pair corresponds to UL group-based reporting.

[0287] For example, the UE can also use at least one of the following Options 2-2-1 to 2-2-2.

[0288] 《Option 2-2-1》

[0289] The UE can also report one or more (e.g., 2) other CRI / SSBRI different from the CRI / SSBRI for DL group use. In this case, it can also mean that the other 2 CSI-RS / SSB resources can be transmitted simultaneously (or support transmission) (refer to Figure 19 ).

[0290] 《Option 2-2-2》

[0291] The UE can also report M other resource groups different from the resource groups for DL group use. In this case, it can also mean that 2 CSI-RS / SSB resources for each of the other M resource groups can be transmitted simultaneously (or support transmission) (refer to Figure 20 ).

[0292] The number of groups (e.g., N, M) can be specified in the specification in advance, or can be set by a higher-layer parameter related to the number of groups (e.g., nrofReportedRSgroup). Alternatively, indication information indicating the number of resource groups (e.g., M) corresponding to UL group-based beam reporting can also be included. In addition, in the case of M = 1, Option 2-2-1 can also be applied. Furthermore, the number of resource groups N for DL group use and the number of resource groups M for UL group use can also be set separately. Or, it can also be N = M.

[0293] Figure 20 FIG. is an example of CSI reporting in the case of performing DL group-based beam reporting and UL group-based beam reporting separately (or using different resource groups). In Figure 20 it shows the following situation: CRI / SSBRI #1 and CRI / SSBRI #2 of the first to fourth resource groups are reported for DL group-based beam reporting, and CRI / SSBRI #1 and CRI / SSBRI #2 of the first resource group and CRI / SSBRI #1 and CRI / SSBRI #2 of the second resource group are reported for UL group-based beam reporting.

[0294] It is also possible to apply at least one of Alt.2-1 to Alt.2-2 below to the above options 2-1 to 2-2.

[0295] [Alt.2-1]

[0296] In the case where 1 CSI resource set is configured, the 2 CSI-RS / SSB resources of each group can also be selected from 1 CSI resource set.

[0297] [Alt.2-2]

[0298] In the case where 2 CSI resource sets are configured, the 2 CSI-RS / SSB resources of each group can also be selected from 2 CSI resource sets respectively.

[0299] In this case, the 2 CSI resource sets can also be configured commonly for DL beam reporting and UL beam reporting.

[0300] Alternatively, the 2 CSI resource sets can also be configured separately for DL beam reporting and UL beam reporting. For example, it can also be that 2 CSI resource sets are configured for DL beam reporting and the other 2 CSI resource sets are configured for UL beam reporting.

[0301] In this case, it can also be that a resource set indicator (e.g., resource set indicator) field is included in the CSI report, and the resource set indicator represents the same meaning as the Rel.17 group-based beam report. For example, it can also be that the channel measurement resource set of the CRI or SSBRI#1 of the first resource group reported is indicated by the value of the resource set indicator. For example, it can also be that a 1-bit resource set indicator with a value of 0 or 1 represents the 1st or 2nd channel measurement resource set respectively, from which the CRI or SSBRI#1 of the first resource group is reported. All the remaining resource groups (e.g., in the case where there are other resource groups reported) follow the same mapping order as the first resource group. For example, the CRI or SSBRI#1 of all the remaining resource groups can also be reported (or selected) from the channel measurement resource set indicated by the resource set indicator.

[0302] Alternatively, 2 resource set indicator fields corresponding to DL beam reporting and UL beam reporting respectively can also be included in the CSI report.

[0303] [Change]

[0304] The CSI-RS / SSB resources for UL group-based beam reporting can also be different from the CSI-RS / SSB resources for DL group-based beam reporting. For example, the resources for UL can also be a subset of the resources for DL.

[0305] For example, in the case where X CSI-RS / SSB resources are set in a CSI resource set, it is also possible that all resources are used for DL group-based beam reporting, and a part of the resources are used for UL group-based beam reporting. A part of the resources can also be the first / last Y resources. Y can be defined in the specification or set for the UE through higher layer parameters, etc.

[0306] Alternatively, for each CSI-RS / SSB resource, it can also be explicitly set / indicated whether it is used for both DL group-based beam reporting and UL group-based beam reporting, only for DL group-based beam reporting, or only for UL group-based beam reporting. In addition, it is also possible to support the setting / indication of two of "beam reporting for both DL and UL groups", "only for DL group-based beam reporting", and "only for UL group-based beam reporting".

[0307] For DL group-based beam reporting, the maximum number of CSI-RS / SSB resources in a CSI resource set can be either defined or set through higher layer parameters, etc. For example, this maximum number can also be the same as or greater than that in Rel.17. For example, this maximum number can also be 64 or 128. This maximum number can also be determined considering the UE capabilities.

[0308] For UL group-based beam reporting, the maximum number of CSI-RS / SSB resources in a CSI resource set can be either defined or set through higher layer parameters, etc. For example, this maximum number can also be the same as or less than the maximum number of DL group-based beam reporting. For example, this maximum number can also be 32 or 64. This maximum number can also be determined considering the UE capabilities.

[0309] For both DL group-based beam reporting and UL group-based beam reporting, the maximum number of CSI-RS / SSB resources in a CSI resource set can be either defined or set through higher layer parameters, etc. This maximum number can also be determined considering the UE capabilities.

[0310] <Third Embodiment>

[0311] In the third embodiment, another example of group-based beam reporting related to UL transmission is described. The second embodiment can also be appropriately applied when applying Option 2 above. Of course, it is not limited to this.

[0312] DL group-based beam reporting and UL group-based beam reporting can also be reported in separate reporting instances. In a single reporting instance (e.g., single reporting instance), the UE can also perform control to only perform DL group-based beam reporting or UL group-based beam reporting.

[0313] The UE can also use the methods of existing systems (e.g., Rel.15 / 16 / 17) to perform DL group-based beam reporting.

[0314] For DL group-based beam reporting, the UE can also perform it using at least one of the following Option 3-1 to Option 3-2.

[0315] [Option 3-1]

[0316] The UE can also report 2 CRI / SSBRI as UL group-based beam reporting. In this case, it can also mean that the UE can simultaneously transmit (or support transmission of) 2 CRI-RS / SSB resources (refer to Figure 21 ).

[0317] Figure 21 is a diagram showing an example of CSI reporting in the case of performing UL group-based beam reporting. In Figure 21 , the mapping order of the CSI fields included in one report (e.g., the nth CSI report #n) for group-based CSI-RSRP or SSBRI / RSRP reporting is shown.

[0318] Here, the case of reporting CRI / SSBRI#1 and CRI / SSBRI#2 for UL group-based beam reporting is shown. In addition, CRI / SSBRI#1 to #2 can also correspond to the same resource group (one group).

[0319] [Option 3-2]

[0320] The UE can also report 2 CRI / SSBRI for each of the M groups. In this case, it can also mean that the UE can simultaneously transmit (or support transmission of) 2 CRI-RS / SSB resources in each group (refer to Figure 22 ).

[0321] In Figure 22 , the following case is shown: for UL group-based beam reporting, CRI / SSBRI#1 and CRI / SSBRI#2 are reported for the first to fourth resource groups (here, M = 4), respectively.

[0322] The number of groups (e.g., M) can be either predefined in the specification or set by a higher-layer parameter related to the number of groups (e.g., nrofReportedRSgroup). In addition, when M = 1, Option 3-1 can also be applied. Moreover, the number of resource groups N for DL group-based use and the number of resource groups M for UL group-based use can also be set separately. Or, it can be N = M.

[0323] It is also possible to apply at least one of the following Alt.3-1 to Alt.3-2 to the above Option 3-1 to Option 3-2.

[0324] [Alt.3-1]

[0325] In the case where 1 CSI resource set is configured, the 2 CSI-RS / SSB resources of each group can also be selected from 1 CSI resource set.

[0326] [Alt.3-2]

[0327] In the case where 2 CSI resource sets are configured, the 2 CSI-RS / SSB resources of each group can also be selected from 2 CSI resource sets respectively.

[0328] In this case, the 2 CSI resource sets can also be configured commonly for DL beam reporting and UL beam reporting.

[0329] Alternatively, the 2 CSI resource sets can also be configured separately for DL beam reporting and UL beam reporting. For example, it can also be that 2 CSI resource sets are configured for DL beam reporting and the other 2 CSI resource sets are configured for UL beam reporting.

[0330] In this case, it can also be that a resource set indicator (e.g., resource set indicator) field is included in the CSI report, and the resource set indicator represents the same meaning as the Rel.17 group-based beam reporting. For example, it can also be that, through the value of the resource set indicator, the channel measurement resource set of the CRI or SSBRI#1 of the first resource group reported is indicated. For example, it can also be that a 1-bit resource set indicator with a value of 0 or 1 represents the 1st or 2nd channel measurement resource set respectively, from which the CRI or SSBRI#1 of the first resource group is reported. All the remaining resource groups (e.g., in the case where there are other resource groups reported) follow the same mapping order as the first resource group. For example, the CRI or SSBRI#1 of all the remaining resource groups can also be reported (or selected) from the channel measurement resource set indicated by the resource set indicator.

[0331] [Variation]

[0332] For UL group-based beam reporting, the maximum number of CSI-RS / SSB resources within the CSI resource set can either be defined or configured through higher layer parameters, etc. For example, this maximum number can also be the same as or less than the maximum number of DL group-based beam reporting. For example, this maximum number can also be 32 or 64. This maximum number can also be determined considering the UE capabilities.

[0333] It is also possible to support multiple structures in the first embodiment (at least one of Option 1-1 to Option 1-4), the second embodiment (at least one of Option 2-1 to Option 2-2), and the third embodiment (at least one of Option 3-1 to Option 3-2). In this case, regarding which option to apply, it can also be determined based on at least one of the high-layer parameters set from the base station to the UE and the UE capabilities.

[0334] The first to third embodiments can also be applied in the case of supporting the application of a common TCI state for DL channels / signals and UL channels / signals in joint DL / UL TCI (or, unified TCI). In this case, if the common / same CSI resource set and the common / same beam for DL / UL reporting are appropriate, the base station can appropriately utilize the joint DL / UL TCI. For separate DL / UL TCI, or separate panels for DL / UL, separate / different CSI resource sets and separate / different beam reports for DL and UL are appropriate.

[0335] <Fourth Embodiment>

[0336] In the fourth embodiment, the setting (or, activation / deactivation) of UL group-based beam reporting / DL group-based beam reporting is described.

[0337] The UE can also determine the setting (or, activation / deactivation) of UL group-based beam reporting / DL group-based beam reporting based on specific conditions / high-layer parameters.

[0338] For example, in the case of supporting the third embodiment (e.g., when DL group-based beam reporting and UL group-based beam reporting are performed in separate CSI reporting instances), the setting (or, activation / deactivation) of UL group-based beam reporting / DL group-based beam reporting can also be performed separately.

[0339] For example, DL group-based beam reporting can also be activated by high-layer parameters of the existing system (e.g., groupBasedBeamReporting, or groupBasedBeamReporting-r17). On the other hand, UL group-based beam reporting can also be activated by new high-layer parameters (e.g., ULgroupBasedBeamReporting).

[0340] Regarding the CSI report setting (e.g., CSI-report config), when the new high-layer parameter is activated, the third embodiment can also be applied to UL group-based beam reporting.

[0341] In the case of supporting the first embodiment (at least one of Option 1-1 to Option 1-4) / the second embodiment (at least one of Option 2-1 to Option 2-2) (for example, in the case where DL group-based beam reporting and UL group-based beam reporting are performed in one CSI reporting instance), at least one of the following Alt.4-1 to Alt.4-2 can also be applied.

[0342] [Alt.4-1]

[0343] The setting (or activation / deactivation) of UL group-based beam reporting / DL group-based beam reporting can also be performed separately. For example, DL group-based beam reporting can also be activated by a higher layer parameter of the existing system (for example, groupBasedBeamReporting, or groupBasedBeamReporting-r17). On the other hand, UL group-based beam reporting can also be activated by a new higher layer parameter (for example, ULgroupBasedBeamReporting).

[0344] 《Case 4-1》

[0345] For the CSI report setting (for example, CSI-report config), in the case where the higher layer parameter for DL group-based beam reporting becomes valid and the higher layer parameter for UL group-based beam reporting does not become valid, the DL group-based beam reporting of the existing system can also be applied.

[0346] 《Case 4-2》

[0347] For the CSI report setting (for example, CSI-report config), in the case where the higher layer parameter for DL group-based beam reporting becomes valid and the higher layer parameter for UL group-based beam reporting also becomes valid, the first embodiment / second embodiment can also be applied.

[0348] 《Case 4-3》

[0349] For the CSI report setting (for example, CSI-report config), in the case where the higher layer parameter for DL group-based beam reporting does not become valid and the higher layer parameter for UL group-based beam reporting becomes valid, at least one of the following Alt.4-1-a / Alt.4-1-b can also be applied.

[0350] ·Alt.4-1-a

[0351] The third embodiment can also be applied to perform UL group-based beam reporting. In this case, it can also mean that in addition to supporting the first embodiment / second embodiment, the third embodiment is also supported.

[0352] ·Alt.4-1-b

[0353] The UE may also not assume Scenario 4-3 (for example, only the higher-layer parameters for UL group-based beam reporting are activated). That is, a structure that only performs UL group-based beam reporting may not be supported either.

[0354] [Alt.4-2]

[0355] The first embodiment (at least one of Option 1-1 to Option 1-4) / the second embodiment (at least one of Option 2-1 to Option 2-2) may also be set (for example, activated) by new higher-layer parameters. When activated by these new higher-layer parameters, the UE may also apply the first embodiment (at least one of Option 1-1 to Option 1-4) / the second embodiment (at least one of Option 2-1 to Option 2-2).

[0356] <Variation>

[0357] In the CSI reports of the first to fourth embodiments, panel information may also be included. For example, in DL group-based beam reporting / UL group-based beam reporting, the UE may also include information related to the panel index in the CSI report. The UE may also report one panel index information per CRI / SSBRI for which reporting is performed. Alternatively, the UE may also report one panel index information per resource group for which reporting is performed.

[0358] <UE capability information>

[0359] In the above first to fourth embodiments, the following UE capabilities may also be set. Additionally, the following UE capabilities may also be rewritten as parameters (for example, higher-layer parameters) set from the network (such as a base station) to the UE.

[0360] UE capability information related to whether UL group-based beam reporting is supported may also be defined.

[0361] UE capability information related to whether UL group-based beam reporting in the first embodiment (at least one of Option 1-1 to Option 1-4), the second embodiment (at least one of Option 2-1 to Option 2-2), and the third embodiment (at least one of Option 3-1 to Option 3-2) is supported may also be defined.

[0362] The first to fourth embodiments may also be configured as a structure for a UE that supports / reports at least one of the above UE capabilities. Alternatively, the first to fourth embodiments may also be configured to be applied to a UE set from the network..

[0363] (Supplementary Note)

[0364] Regarding an embodiment of the present disclosure, the following inventions are noted.

[0365] [Supplementary Note 1]

[0366] A terminal having: a receiving unit that receives resource information related to channel state information resources that can be used for UL group-based beam reporting; and a control unit that, based on the resource information, performs channel state information reporting including at least one of UL group-based beam reporting and DL group-based beam reporting.

[0367] [Supplementary Note 2]

[0368] The terminal according to Supplementary Note 1, wherein the control unit performs the UL group-based beam reporting and the DL group-based beam reporting using the same resource index of the same group included in one channel state information report.

[0369] [Supplementary Note 3]

[0370] The terminal according to Supplementary Note 1 or Supplementary Note 2, wherein the control unit performs the UL group-based beam reporting and the DL group-based beam reporting respectively using at least one of different groups and different resource indexes included in one channel state information report.

[0371] [Supplementary Note 4]

[0372] The terminal according to any one of Supplementary Notes 1 to 3, wherein the control unit performs the UL group-based beam reporting and the DL group-based beam reporting respectively using different channel state information reports.

[0373] (Wireless Communication System)

[0374] Hereinafter, the structure of a wireless communication system according to an embodiment of the present disclosure will be described. In this wireless communication system, any one or a combination of the wireless communication methods according to the above-described various embodiments of the present disclosure is used for communication.

[0375] Figure 23It is a diagram showing an example of the schematic structure of a wireless communication system according to an embodiment. The wireless communication system 1 may also be a system that implements communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), the 5th generation mobile communication system New Radio (5G NR), and the like.

[0376] In addition, the wireless communication system 1 may also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple Radio Access Technologies (RATs). MR-DC may also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), and the like.

[0377] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the Master Node (MN), and the base station (gNB) of NR is the Secondary Node (SN). In NE-DC, the base station (gNB) of NR is the MN, and the base station (eNB) of LTE (E-UTRA) is the SN.

[0378] The wireless communication system 1 may also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity where both the MN and the SN are base stations (gNBs) of NR (NR-NR Dual Connectivity (NN-DC))).

[0379] The wireless communication system 1 may also include a base station 11 that forms a macro cell C1 with a relatively wide coverage area, and a base station 12 (12a - 12c) that is disposed within the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 may also be located within at least one cell. The configuration, number, etc. of each cell 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, they are collectively referred to as the base station 10.

[0380] The user terminal 20 may also be connected to at least one of the multiple base stations 10. The user terminal 20 may also utilize at least one of carrier aggregation (CA) and dual connectivity (DC) that uses multiple component carriers (CCs).

[0381] Each CC may 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 C1 may also be included in FR1, and the small cell C2 may also be included in FR2. For example, FR1 may be a frequency band of 6 GHz or less (sub - 6 GHz), and FR2 may be a frequency band higher than 24 GHz (above - 24 GHz). Additionally, the frequency bands, definitions, etc. of FR1 and FR2 are not limited to these. For example, FR1 may be equivalent to a frequency band higher than FR2.

[0382] Furthermore, in each CC, the user terminal 20 may also communicate using at least one of time division duplex (TDD) and frequency division duplex (FDD).

[0383] The multiple base stations 10 may also be connected by wire (e.g., optical fiber based on the Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (e.g., NR communication). For example, when NR communication is utilized as a backhaul between the base stations 11 and 12, the base station 11 that serves as the upper - level station may also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12 that serves as a relay station (relay) may also be referred to as an IAB node.

[0384] Base station 10 can also be connected to the core network 30 via other base stations 10 or directly. For example, 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), etc.

[0385] User terminal 20 can also be a terminal that supports at least one of communication methods such as LTE, LTE-A, 5G, etc.

[0386] In the wireless communication system 1, a wireless access method based on Orthogonal Frequency Division Multiplexing (OFDM) can also be used. For example, in at least one of the Downlink (DL) and the 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), etc. can also be used.

[0387] The wireless access method can also be referred to as a waveform. Additionally, in the wireless communication system 1, other wireless access methods (for example, other single-carrier transmission methods, other multi-carrier transmission methods) can also be used in the wireless access methods of the UL and the DL.

[0388] As a downlink channel, in the wireless communication system 1, 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)), etc. that are shared among the user terminals 20 can also be used.

[0389] In addition, as an uplink channel, in the wireless communication system 1, 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)), etc., which are shared among the respective user terminals 20, can also be used.

[0390] User data, high-layer control information, System Information Block (SIB), etc. are transmitted via the PDSCH. User data, high-layer control information, etc. can also be transmitted via the PUSCH. In addition, the Master Information Block (MIB) can also be transmitted via the PBCH.

[0391] Low-layer control information can also be transmitted via the PDCCH. The low-layer control information can also include, for example, downlink control information (Downlink Control Information (DCI)), which includes scheduling information for at least one of the PDSCH and the PUSCH.

[0392] In addition, the DCI that schedules the PDSCH can also be referred to as DL allocation, DL DCI, etc., and the DCI that schedules the PUSCH can also be referred to as UL grant, UL DCI, etc. In addition, the PDSCH can also be rewritten as DL data, and the PUSCH can also be rewritten as UL data.

[0393] In the detection of the PDCCH, a control resource set (COntrol REsource SET (CORESET)) and a search space can also be used. The CORESET corresponds to the resource for searching for DCI. The search space corresponds to the search area and search method for PDCCH candidates (PDCCH candidates). One CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a certain search space based on the search space setting.

[0394] A search space may also correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces may also be referred to as a search space set. Additionally, terms such as "search space", "search space set", "search space configuration", "search space set configuration", "CORESET", "CORESET configuration", etc. in the present disclosure may also be rewritten with each other.

[0395] Uplink control information (Uplink Control Information (UCI)) including at least one of channel state information (Channel State Information (CSI)), delivery confirmation information (such as may also be referred to as Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (Scheduling Request (SR)) may also be transmitted via PUCCH. A random access preamble for establishing a connection with a cell may also be transmitted via PRACH.

[0396] Additionally, in the present disclosure, the downlink, uplink, etc. may also be expressed without "link". Furthermore, it may also be expressed without "Physical" at the beginning of various channels.

[0397] In the wireless communication system 1, synchronization signals (Synchronization Signal (SS)), downlink reference signals (Downlink Reference Signal (DL-RS)), etc. may also be transmitted. As DL-RS, in the wireless communication system 1, cell-specific reference signals (Cell-specific Reference Signal (CRS)), channel state information reference signals (Channel State Information Reference Signal (CSI-RS)), demodulation reference signals (DeModulation Reference Signal (DMRS)), positioning reference signals (Positioning Reference Signal (PRS)), phase tracking reference signals (Phase Tracking Reference Signal (PTRS)), etc. may also be transmitted.

[0398] The synchronization signal may also be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may also be referred to as an SS / PBCH block, an SS block (SS Block (SSB)), etc. In addition, SS, SSB, etc. may also be referred to as reference signals.

[0399] In addition, in the wireless communication system 1, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a reference signal for measurement (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. may also be transmitted. In addition, DMRS may also be referred to as a user terminal-specific reference signal (UE-specific Reference Signal).

[0400] (Base station)

[0401] Figure 24 FIG. is an example showing the 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. In addition, one or more of the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140 may be provided respectively.

[0402] In addition, in this example, the functional blocks of the characteristic parts in the present embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks required for wireless communication. A part of the processing of each unit described below may also be omitted.

[0403] The control unit 110 controls the entire base station 10. The control unit 110 can be constituted by a controller, a control circuit, etc. described based on the common knowledge in the technical field related to the present disclosure.

[0404] The control unit 110 can also control the generation, scheduling (e.g., resource allocation, mapping), etc. of signals. The control unit 110 can also control the transmission and reception, measurement, etc. using the transmission and reception unit 120, the transmission and reception antenna 130, and the transmission path interface 140. The control unit 110 can also generate data, control information, sequence, etc. to be transmitted as signals, and forward them to the transmission and reception unit 120. The control unit 110 can also perform call processing (setting, releasing, etc.) of communication channels, state management of the base station 10, management of radio resources, etc.

[0405] The transmission and reception unit 120 may also include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may also include a transmission processing unit 1211 and a reception processing unit 1212. The transmission and reception unit 120 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measurement circuit, a transmission and reception circuit, etc. described based on the common knowledge in the technical field related to the present disclosure.

[0406] The transmission and reception unit 120 can be configured as an integrated transmission and reception unit, or can be composed of a transmission unit and a reception unit. The transmission unit can also be composed of the transmission processing unit 1211 and the RF unit 122. The reception unit can also be composed of the reception processing unit 1212, the RF unit 122, and the measurement unit 123.

[0407] The transmission and reception antenna 130 can be composed of an antenna described based on the common knowledge in the technical field related to the present disclosure, such as an array antenna, etc.

[0408] The transmission and reception unit 120 can also transmit the above-mentioned downlink channels, synchronization signals, downlink reference signals, etc. The transmission and reception unit 120 can also receive the above-mentioned uplink channels, uplink reference signals, etc.

[0409] The transmission and reception unit 120 can also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc. to form at least one of a transmission beam and a reception beam.

[0410] The transmission / reception unit 120 (transmission processing unit 1211) may also perform, for example, processing of the Packet Data Convergence Protocol (PDCP) layer, processing of the Radio Link Control (RLC) layer (e.g., RLC retransmission control), and processing of the Medium Access Control (MAC) layer (e.g., HARQ retransmission control) on data, control information, etc. obtained from the control unit 110, and generate a bit string to be transmitted.

[0411] The transmission / reception unit 120 (transmission processing unit 1211) may also perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filter processing (filtering), Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, digital-to-analog conversion, etc. on the bit string to be transmitted, and output a baseband signal.

[0412] The transmission / reception unit 120 (RF unit 122) may also modulate the baseband signal to a radio frequency band, perform filter processing, amplification, etc., and transmit the radio frequency band signal via the transmission / reception antenna 130.

[0413] On the other hand, the transmission / reception unit 120 (RF unit 122) may also amplify, perform filter processing, and demodulate the radio frequency band signal received through the transmission / reception antenna 130 to a baseband signal.

[0414] The transmission / reception unit 120 (reception processing unit 1212) may also perform reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filter processing, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing on the obtained baseband signal, and obtain user data, etc.

[0415] The transmission / reception unit 120 (measurement unit 123) may also perform measurements related to the received signal. For example, the measurement unit 123 may also perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may also perform measurements on received power (e.g., Reference Signal Received Power (RSRP)), reception quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0416] The transmission path interface 140 may also transmit and receive signals (backhaul signaling) between the device included in the core network 30, other base stations 10, etc., and acquire, transmit, etc. user data (user plane data), control plane data, etc. for the user terminal 20.

[0417] In addition, the transmission unit and the reception unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140.

[0418] The transmission / reception unit 120 may also transmit resource information related to the channel state information resource that can be used for UL group-based beam reporting. In addition, the transmission / reception unit 120 may also receive a channel state information report including at least one of UL group-based beam reporting and DL group-based beam reporting reported from the terminal.

[0419] The control unit 110 may also indicate to the terminal the resource information related to the channel state information resource that can be used for UL group-based beam reporting.

[0420] (User Terminal)

[0421] Figure 25FIG. 0 is an example showing the structure of a user terminal according to an embodiment. The user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. In addition, one or more of the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may be provided respectively.

[0422] In addition, in this example, the functional blocks of the characteristic parts in the present embodiment are mainly shown, and it can also be assumed that the user terminal 20 further has other functional blocks required for wireless communication. A part of the processing of each unit described below may also be omitted.

[0423] The control unit 210 implements overall control of the user terminal 20. The control unit 210 can be constituted by a controller, a control circuit, etc. described based on the common knowledge in the technical field related to the present disclosure.

[0424] The control unit 210 may also control signal generation, mapping, etc. The control unit 210 may also control transmission / reception, measurement, etc. using the transmission / reception unit 220 and the transmission / reception antenna 230. The control unit 210 may also generate data, control information, sequences, etc. to be transmitted as signals, and forward them to the transmission / reception unit 220.

[0425] The transmission / reception unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The 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, etc. described based on the common knowledge in the technical field related to the present disclosure.

[0426] The transmission / reception unit 220 may be constituted as an integrated transmission / reception unit, or may be constituted by a transmission unit and a reception unit. The transmission unit may be constituted by the transmission processing unit 2211 and the RF unit 222. The reception unit may be constituted by the reception processing unit 2212, the RF unit 222, and the measurement unit 223.

[0427] The transmission / reception antenna 230 can be constituted by an antenna described based on the common knowledge in the technical field related to the present disclosure, such as an array antenna.

[0428] The transmission / reception unit 220 may also receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmission / reception unit 220 may also transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0429] The transmission / reception unit 220 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc. to form at least one of a transmission beam and a reception beam.

[0430] The transmission / reception unit 220 (transmission processing unit 2211) may also perform, for example, PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 210 to generate a bit string to be transmitted.

[0431] The transmission / reception unit 220 (transmission processing unit 2211) may also perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filter processing, DFT processing (if necessary), IFFT processing, precoding, digital-to-analog conversion, etc. on the bit string to be transmitted, and output a baseband signal.

[0432] In addition, regarding whether to apply DFT processing, it may also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when transform precoding is effective (enabled), the transmission / reception unit 220 (transmission processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using the DFT-s-OFDM waveform. In other cases, the transmission / reception unit 220 (transmission processing unit 2211) may not perform DFT processing as the above-mentioned transmission processing.

[0433] The transmission / reception unit 220 (RF unit 222) may also perform modulation to a radio frequency band, filter processing, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transmission / reception antenna 230.

[0434] On the other hand, the transmission / reception unit 220 (RF unit 222) may also perform amplification, filter processing, demodulation to a baseband signal, etc. on the radio frequency band signal received through the transmission / reception antenna 230.

[0435] The transmission / reception unit 220 (reception processing unit 2212) may also perform reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filter processing, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, etc. on the obtained baseband signal to obtain user data, etc.

[0436] The transmission / reception unit 220 (measurement unit 223) may also perform measurements related to the received signal. For example, the measurement unit 223 may also perform RRM measurements, CSI measurements, etc. based on the received signal. The measurement unit 223 may also perform measurements on received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 210.

[0437] In addition, the transmission unit and the reception unit of the user terminal 20 in the present disclosure may also be constituted by at least one of the transmission / reception unit 220 and the transmission / reception antenna 230.

[0438] The transmission / reception unit 220 may also receive resource information related to a channel state information resource that can be used for UL group-based beam reporting.

[0439] The control unit 210 may also perform control based on the resource information to perform a channel state information report including at least one of UL group-based beam reporting and DL group-based beam reporting.

[0440] The control unit 210 may also perform control to perform UL group-based beam reporting and DL group-based beam reporting using the same resource index of the same group included in one channel state information report.

[0441] The control unit 210 may also perform control to perform UL group-based beam reporting and DL group-based beam reporting respectively using at least one of different groups and different resource indexes included in one channel state information report.

[0442] The control unit 210 may also perform control to perform UL group-based beam reporting and DL group-based beam reporting respectively using different channel state information reports.

[0443] (Hardware Structure)

[0444] In addition, the block diagrams used in the description of the above embodiments illustrate blocks of functional units. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block may be implemented by a single device physically or logically combined, or may be implemented by two or more physically or logically separated devices directly or indirectly (e.g., by wire, wireless, etc.) connected. The functional block may also be implemented by combining the above single device or the above multiple devices with software.

[0445] Here, in terms of functions, there are judgment, decision-making, determination, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, establishment, comparison, assumption, expectation, regarded as, broadcasting, notifying, communicating, forwarding, configuration (setting), reconfiguration (reconfiguring), allocation (allocating, mapping), assignment, etc., but not limited to these. For example, a functional block (structural unit) that implements the transmission function may also be referred to as a transmitting unit, a transmitter, etc. Any one of them is as described above, and its implementation method is not particularly limited.

[0446] For example, a base station, a user terminal, etc. in an embodiment of the present disclosure may also function as a computer that performs the processing of the wireless communication method of the present disclosure. Figure 26 FIG. is an example showing the hardware structure of a base station and a user terminal according to an embodiment. The above-mentioned base station 10 and user terminal 20 may physically also be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0447] In addition, in the present disclosure, terms such as device, circuit, equipment, section, unit, etc. can be rewritten with each other. The hardware structure of the base station 10 and the user terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured not to include some devices.

[0448] For example, only one processor 1001 is shown, but there may be multiple processors. In addition, the processing may be executed by one processor, or may be executed simultaneously, sequentially, or by other means by two or more processors. In addition, the processor 1001 may also be implemented by one or more chips.

[0449] Regarding each function in the base station 10 and the user terminal 20, for example, by reading a specific software (program) into hardware such as the processor 1001 and the memory 1002, the processor 1001 performs operations and controls communication via the communication device 1004, or controls at least one of reading and writing data in the memory 1002 and the storage 1003, thereby realizing it.

[0450] The processor 1001 enables, for example, an operating system to operate to control the entire computer. The processor 1001 may also be constituted by a central processing unit (Central Processing Unit (CPU)) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like. For example, at least a part of the above-described control unit 110 (210), transmission / reception unit 120 (220), and the like may also be implemented by the processor 1001.

[0451] In addition, the processor 1001 reads a program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and performs various processes based on them. As the program, a program that causes a computer to execute at least a part of the operations described in the above-described embodiments may be used. For example, the control unit 110 (210) may also be implemented by a control program stored in the memory 1002 and operating in the processor 1001, and the same applies to other functional blocks.

[0452] The memory 1002 may also be a computer-readable recording medium, and may be constituted by, for example, at least one of a read-only memory (Read Only Memory (ROM)), an erasable programmable read-only memory (Erasable Programmable ROM (EPROM)), an electrically erasable programmable read-only memory (Electrically EPROM (EEPROM)), a random access memory (Random Access Memory (RAM)), and other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), and the like. The memory 1002 can store a program (program code), software module, etc. executable for implementing the wireless communication method according to an embodiment of the present disclosure.

[0453] The storage 1003 may also be a computer-readable recording medium, and may be constituted by, for example, at least one of a flexible disc, a floppy (registered trademark) disc, an optical disc (e.g., a compact disc (Compact Disc ROM (CD-ROM))), a digital versatile disc, a Blu-ray (registered trademark) disc, a removable disc, a hard disk drive, a smart card, a flash device (e.g., a card, a stick, a key drive), a magnetic stripe, a database, a server, and other appropriate storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0454] The communication device 1004 is hardware (a transmitting and receiving device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, etc. In order to implement at least one of, for example, Frequency Division Duplex (FDD) and Time Division Duplex (TDD), the communication device 1004 may also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the above-described transmitting and receiving unit 120 (220), the transmitting and receiving antenna 130 (230), etc. may also be implemented by the communication device 1004. The transmitting and receiving unit 120 (220) may also be physically or logically separated and implemented by a transmitting unit 120a (220a) and a receiving unit 120b (220b).

[0455] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts an input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that performs an output to the outside. In addition, the input device 1005 and the output device 1006 may also be of an integrated structure (e.g., a touch panel).

[0456] In addition, each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be constituted by a single bus or may be constituted by different buses between the respective devices.

[0457] In addition, the base station 10 and the user terminal 20 may also be configured to include hardware such as a microprocessor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), etc., and a part or all of each functional block may also be implemented by this hardware. For example, the processor 1001 may also be implemented using at least one of these hardwares.

[0458] (Modification example)

[0459] In addition, terms described in this disclosure and terms required for understanding this disclosure may also be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may also be rewritten with each other. In addition, a signal may also be a message. A reference signal can also be abbreviated as RS and may also be referred to as a pilot, a pilot signal, etc. according to the applied standard. In addition, a component carrier (Component Carrier (CC)) may also be referred to as a cell, a frequency carrier, a carrier frequency, etc.

[0460] A radio frame may also be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting the radio frame may also be referred to as a subframe. Further, a subframe may also be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (e.g., 1 ms) independent of the numerology.

[0461] Here, the numerology may also be a communication parameter applied in at least one of transmission and reception of a certain signal or channel. For example, the numerology may also represent at least one of a subcarrier spacing (SubCarrier Spacing (SCS)), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (Transmission Time Interval (TTI)), the number of symbols per TTI, a radio frame structure, a specific filter process performed by a transmitter-receiver in the frequency domain, a specific windowing process performed by a transmitter-receiver in the time domain, etc.

[0462] A time slot may also be composed of one or more symbols (orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing (OFDM)) symbols, single carrier frequency division multiple access (Single Carrier Frequency Division Multiple Access (SC-FDMA)) symbols, etc.) in the time domain. In addition, a time slot may also be a time unit based on the numerology.

[0463] A time slot may also include a plurality of mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of a smaller number of symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type B.

[0464] A radio frame, subframe, time slot, mini-slot, and symbol all represent time units for transmitting signals. A radio frame, subframe, time slot, mini-slot, and symbol may also use other corresponding names. Additionally, time units such as frames, subframes, time slots, mini-slots, and symbols in the present disclosure can also be rewritten with each other.

[0465] For example, a subframe can also be referred to as a TTI, multiple consecutive subframes can also be referred to as a TTI, a time slot or a mini-slot can also be referred to as a TTI. That is, at least one of a subframe and a TTI can be a subframe (1 ms) in existing LTE, can also be a period shorter than 1 ms (e.g., 1 - 13 symbols), or can also be a period longer than 1 ms. Additionally, the unit representing a TTI may not be referred to as a subframe, but as a time slot, mini-slot, etc.

[0466] Here, a TTI, for example, refers to the minimum time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) to each user terminal in units of TTI. Additionally, the definition of a TTI is not limited to this.

[0467] A TTI can also be the transmission time unit for data packets (transport blocks), code blocks, codewords, etc. that have undergone channel coding, and can also become the processing unit for scheduling, link adaptation, etc. Additionally, when a TTI is given, the time interval (e.g., number of symbols) actually mapped with a transport block, code block, codeword, etc. can also be shorter than the TTI.

[0468] Additionally, when a time slot or a mini-slot is referred to as a TTI, one or more TTIs (i.e., one or more time slots or one or more mini-slots) can also become the minimum time unit for scheduling. Furthermore, the number of time slots (number of mini-slots) constituting the minimum time unit of this scheduling can also be controlled.

[0469] A TTI with a time length of 1 ms can also be referred to as a normal TTI (TTI in 3GPP Rel.8 - 12), standard TTI, long TTI, normal subframe, standard subframe, long subframe, time slot, etc. A TTI shorter than a normal TTI can also be referred to as a shortened TTI, short TTI, partial TTI (partial or fractional TTI), shortened subframe, short subframe, mini-slot, sub-time slot, time slot, etc.

[0470] Additionally, a long TTI (e.g., a normal TTI, subframe, etc.) can also be rewritten as a TTI with a time length exceeding 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can also be rewritten as a TTI with a TTI length less than that of the long TTI and a TTI length of 1 ms or more.

[0471] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may also include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, it may also be 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0472] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a time slot, a mini-slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks respectively.

[0473] In addition, one or more RBs may also be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0474] In addition, a resource block may also be composed of one or more resource elements (REs). For example, one RE may also be a radio resource area of a subcarrier and a symbol.

[0475] A bandwidth part (BWP) (which may also be referred to as a partial bandwidth, etc.) may also represent a subset of consecutive common RBs (common resource blocks) used for a certain parameter set in a certain carrier. Here, the common RBs may also be determined by the index of the RBs based on the common reference point of the carrier. A PRB may also be defined in a certain BWP and numbered additionally within that BWP.

[0476] An UL BWP (BWP for UL) and a DL BWP (BWP for DL) may also be included in a BWP. For a UE, one or more BWPs may also be set within one carrier.

[0477] At least one of the set BWPs may also be active, and the UE may not assume to transmit and receive specific signals / channels outside the active BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be rewritten as "BWP".

[0478] In addition, the structures such as the above-mentioned radio frames, subframes, time slots, mini time slots, and symbols are merely illustrative. For example, the number of subframes included in a radio frame, the number of time slots in each subframe or radio frame, the number of mini time slots included in a time slot, the symbols included in a time slot or mini time slot, the number of RBs, the number of subcarriers included in an RB, and the number of symbols, symbol length, cyclic prefix (CP) length, etc. within a TTI can be changed in various ways.

[0479] In addition, the information, parameters, etc. described in this disclosure can be represented by absolute values, relative values with respect to a specific value, or can also be represented by corresponding other information. For example, radio resources can also be indicated by a specific index.

[0480] In this disclosure, the names used for parameters, etc. are not restrictive names in all aspects. Furthermore, mathematical expressions, etc. using these parameters can also be different from those clearly disclosed in this disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name. Therefore, the various names assigned to these various channels and information elements are not restrictive names in all aspects.

[0481] The information, signals, etc. described in this disclosure can also be represented using any one of various different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description can also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0482] In addition, information, signals, etc. can be output in at least one of the following directions: from a higher layer to a lower layer, and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.

[0483] The input and output information, signals, etc. can be stored in a specific location (e.g., a memory), or can be managed using a management table. The input and output information, signals, etc. can be overwritten, updated, or appended. The output information, signals, etc. can also be deleted. The input information, signals, etc. can also be sent to other devices.

[0484] The notification of information is not limited to the manners / embodiments described in the present disclosure, and other methods may also be used. For example, the notification of information in the present disclosure may also be implemented 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.

[0485] In addition, physical layer signaling may also be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. In addition, RRC signaling may also be referred to as an RRC message, and may also be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration (RRC Connection Re-setup) message, etc. In addition, MAC signaling may also be notified, for example, using a MAC Control Element (MAC CE).

[0486] In addition, the notification of specific information (e.g., the notification of "is X") is not limited to explicit notification, and may also be performed implicitly (e.g., by not notifying the specific information, or by notifying other information).

[0487] The determination may be made by a value represented by one bit (0 or 1), may also be made by a true / false value (boolean value) represented by true or false, and may also be made by a numerical comparison (e.g., comparison with a specific value).

[0488] Software, whether referred to as software, firmware, middleware, micro-code, hardware description language, or by any other name, should be broadly construed to mean instructions, instruction sets, code, code segments, program code, programs, sub-programs, software modules, applications, software applications, software packages, routines, sub-routines, objects, executable files, execution threads, procedures, functions, etc.

[0489] In addition, software, instructions, information, etc. can also be sent and received via a transmission medium. For example, in the case of sending software from a website, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included in the definition of the transmission medium.

[0490] Terms such as "system" and "network" used in this disclosure can be used interchangeably. "Network" can also mean a device (e.g., a base station) included in the network.

[0491] In this disclosure, terms such as "precoding", "precoder", "weights (precoding weights)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", "panel", etc. can be used interchangeably.

[0492] In the present disclosure, terms such as "Base Station (BS)", "radio base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "panel", "cell", "sector", "cell group", "carrier", "component carrier" can be used interchangeably. There are also cases where base stations are referred to by terms such as macro cell, small cell, femto cell, pico cell, etc.

[0493] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to part or all of the coverage area of at least one of the base station and the base station subsystem that provides communication services within this coverage range.

[0494] In the present disclosure, "the base station sends information to the terminal" can also be rewritten as "the base station instructs the terminal to perform control / operation based on this information".

[0495] In the present disclosure, terms such as "Mobile Station (MS)", "user terminal", "user device (User Equipment (UE))", "terminal" can be used interchangeably.

[0496] There are also cases where the mobile station is referred to by terms such as subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, hand set, user agent, mobile client, client, or several other appropriate terms.

[0497] At least one of the base station and the mobile station can also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station can also be a device mounted on a moving object, the moving object itself, etc.

[0498] The mobile object refers to an object that can move, with an arbitrary moving speed, and of course includes the case where the mobile object stops. The mobile object includes, for example, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected vehicles, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trailers, rickshaws, ships (boats and other watercraft), airplanes, rockets, artificial satellites, drones, multi-rotor aircraft, quad-rotor aircraft, balloons, and objects mounted on them. In addition, it is not limited to these. Further, the mobile object may also be a mobile object that autonomously travels based on an operation instruction.

[0499] The mobile object may be a transportation means (e.g., a vehicle, an airplane, etc.), or a mobile object that moves in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or may also be a robot (humanoid or non-humanoid). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move during a communication operation. For example, at least one of the base station and the mobile station may also be an Internet of Things (IoT) device such as a sensor.

[0500] Figure 27 FIG. is an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotational speed sensor 51, a 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.

[0501] The drive unit 41 is constituted by, for example, at least one of an engine, a motor, and a hybrid of an engine and a motor. The steering unit 42 is configured to include at least a steering wheel (also referred to as a steering disk), and based on the operation of the steering wheel operated by a user, steers at least one of the front wheels 46 and the rear wheels 47.

[0502] The electronic control unit 49 may also be constituted by a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (e.g., an input / output (IO) port) 63. Signals from various sensors 50-58 provided in the vehicle are input to the electronic control unit 49. The electronic control unit 49 may also be referred to as an ECU (Electronic Control Unit).

[0503] As signals from various sensors 50-58, there are current signals from a current sensor 50 that senses the current of the motor, rotational speed signals of the front wheels 46 / rear wheels 47 obtained by a rotational speed sensor 51, air pressure signals of the front wheels 46 / rear wheels 47 obtained by an air pressure sensor 52, vehicle speed signals obtained by a vehicle speed sensor 53, acceleration signals obtained by an acceleration sensor 54, depression amount signals of an accelerator pedal 43 obtained by an accelerator pedal sensor 55, depression amount signals of a brake pedal 44 obtained by a brake pedal sensor 56, operation signals of a shift lever 45 obtained by a shift lever sensor 57, detection signals for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58, and so on.

[0504] The information service unit 59 is composed of various devices such as a car navigation system, an audio system, speakers, a display, a television, and a radio that provide (output) various information such as driving information, traffic information, and entertainment information, 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 the occupants of the vehicle 40 by using information obtained from external devices via a communication module 60 and the like.

[0505] The information service unit 59 may include an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accepts input from the outside, or may include an output device (for example, a display, a speaker, an LED lamp, a touch panel, etc.) that performs output to the outside.

[0506] The driving assistance system unit 64 is composed of a millimeter-wave radar, a Light Detection and Ranging (LiDAR), a camera, a positioning device (such as a Global Navigation Satellite System (GNSS)), map information (such as a high-precision (High Definition (HD)) map, an Autonomous Vehicle (AV) map, etc.), a gyroscope system (such as 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 various devices for providing functions to prevent accidents or reduce the driver's driving load, and one or more ECUs for controlling these devices. In addition, the driving assistance system unit 64 transmits and receives various information via the communication module 60 and implements a driving assistance function or an autonomous driving function.

[0507] The communication module 60 can communicate with the microprocessor 61 and the components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) via the communication port 63 among the drive unit 41, the steering 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 microprocessor 61 and the memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50 - 58 of the vehicle 40.

[0508] The communication module 60 can be 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 via wireless communication with the external device. The communication module 60 can be located either inside or outside the electronic control unit 49. The external device can also be, for example, the above-mentioned base station 10, user terminal 20, etc. In addition, the communication module 60 can also be, for example, at least one of the above-mentioned base station 10 and user terminal 20 (and can also function as at least one of the base station 10 and user terminal 20).

[0509] The communication module 60 can also transmit, via wireless communication, at least one of the signals from the various sensors 50-58 input to the electronic control unit 49, the information obtained based on the signals, and the information based on the input from the outside (user) obtained via the information service unit 59. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. can also be referred to as input units that accept input. For example, the PUSCH transmitted through the communication module 60 can also include the information based on the above input.

[0510] The communication module 60 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) transmitted from an 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, based on the PDSCH received through the communication module 60 (or the data / information decoded from the PDSCH), outputs information to devices such as a display and a speaker).

[0511] In addition, the communication module 60 stores the various information received from the external device in the memory 62 that can be utilized by the microprocessor 61. The microprocessor 61 can also control the drive unit 41, the steering 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 various sensors 50-58, etc. provided in the vehicle 40 based on the information stored in the memory 62.

[0512] In addition, the base station in the present disclosure can also be rewritten as a user terminal. For example, for a structure in which the communication between the base station and the user terminal is rewritten as the communication between multiple user terminals (for example, it can also be referred to as Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.), the various modes / embodiments of the present disclosure can also be applied. In this case, it can also be configured such that the user terminal 20 has the functions of the above base station 10. In addition, terms such as "uplink" and "downlink" can also be rewritten as terms corresponding to inter-terminal communication (for example, "sidelink"). For example, the uplink channel, the downlink channel, etc. can also be rewritten as the sidelink channel.

[0513] Similarly, the user terminal in the present disclosure can also be rewritten as a base station. In this case, it can also be configured such that the base station 10 has the functions of the above user terminal 20.

[0514] In the present disclosure, operations performed by a base station are sometimes also performed by its upper node according to circumstances. Apparently, 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, considering a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0515] Each mode / embodiment described in the present disclosure can be used alone, in combination, or switched during execution. In addition, the processing procedures, timings, flowcharts, etc. of each mode / embodiment described in the present disclosure can also be reordered as long as there is no contradiction. For example, for the methods described in the present disclosure, elements of various steps are presented in an illustrative order, but are not limited to the specific order presented.

[0516] Each mode / embodiment described 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, the fourth-generation mobile communication system (4G), the fifth-generation mobile communication system (5G), the sixth-generation mobile communication system (6G), the xth-generation mobile communication system (xG (where x is an integer or a decimal, for example)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Futuregeneration 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 obtained by expanding, modifying, creating, or prescribing based on them, and the like. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A and 5G) and applied.

[0517] The description "based on" used in the present disclosure, unless otherwise specified, does not mean "only based on". In other words, the description "based on" means both "only based on" and "at least based on".

[0518] Any reference to an element using designations such as "first", "second", etc. used in this disclosure does not fully define the quantity or order of these elements. These designations can be used in this disclosure as a convenient way to distinguish between more than two elements. Therefore, the reference to the first and second elements does not mean that only two elements can be employed, or that the first element must be prior to the second element in a certain form.

[0519] The term "determining" as used in this disclosure can encompass a variety of operations in some cases. For example, "determining" can also be a case where judging, calculating, computing, processing, deriving, investigating, looking up (searching, inquiring) (such as searching in a table, database, or other data structure), ascertaining, etc. are regarded as performing "determining".

[0520] In addition, "determining" can also be a case where receiving (for example, receiving information), transmitting (for example, transmitting information), input, output, accessing (for example, accessing data in a memory), etc. are regarded as performing "determining".

[0521] In addition, "determining" can also be a case where resolving, selecting, choosing, establishing, comparing, etc. are regarded as performing "determining". That is, "determining" can also be a case where some actions are regarded as performing "determining".

[0522] In addition, "determining" can also be rewritten as "assuming", "expecting", "considering", etc.

[0523] The "maximum transmit power" described in this disclosure can either mean the maximum value of the transmit power, or the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0524] As used in this disclosure, terms such as "connected" and "coupled", or all of their variations, mean all direct or indirect connections or couplings between two or more elements, and can include the situation where there is one or more intermediate elements between the two elements that are "connected" or "coupled" to each other. The coupling or connection between elements can be physical, logical, or a combination of them. For example, "connected" can also be rewritten as "access".

[0525] In this disclosure, when two elements are connected, it is possible to consider using one or more wires, cables, printed electrical connections, etc., and electromagnetic energy having wavelengths in the radio frequency domain, microwave region, light (both visible and invisible) region, etc., as several non-limiting and non-exhaustive examples, and being "connected" or "coupled" to each other.

[0526] In this disclosure, a term such as "A is different from B" can also mean "A and B are different from each other". Additionally, this term can also mean "A and B are each different from C". Terms such as "separated" and "combined" can also be interpreted in the same way as "different".

[0527] When using "include", "including", and their variations in this disclosure, these terms, like the term "comprising", are meant to be inclusive. Furthermore, the term "or" used in this disclosure does not mean exclusive or.

[0528] In this disclosure, for example, in cases where articles are added through translation such as a, an, and the in English, this disclosure can also include cases where the nouns following these articles are in the plural form.

[0529] In this disclosure, "below", "less than", "above", "more than", "equal to", etc. can also be rewritten with each other. In addition, in this disclosure, words meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can be rewritten with each other not limited to the positive, comparative, and superlative degrees. In addition, words meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. in this disclosure can also be rewritten with each other as expressions with "the i-th" (i is an arbitrary integer) attached, not limited to the positive, comparative, and superlative degrees (for example, "the highest" can also be rewritten with "the i-th highest").

[0530] In the present disclosure, "of", "for", "regarding", "related to", "associated with", etc. may also be rewritten with each other.

[0531] As described above, the invention related to the present disclosure has been described in detail. However, 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 invention related to the present disclosure can be implemented in the form of modifications and changes without departing from the gist and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is for the purpose of illustration and does not carry any restrictive meaning for the invention related to the present disclosure.

Claims

1. A terminal, comprising: a receiving unit, configured to receive information related to a setting of group-based beam reporting and information related to a setting of simultaneous UL transmission; and a control unit, configured to perform control to perform UL group-based beam reporting and DL group-based beam reporting in one channel state information report when both the group-based beam reporting and the simultaneous UL transmission are effective.

2. The terminal according to claim 1, wherein, the control unit performs the UL group-based beam reporting and the DL group-based beam reporting by using the same resource index of the same group included in the one channel state information report.

3. The terminal according to claim 1, wherein, the control unit performs the UL group-based beam reporting and the DL group-based beam reporting respectively by using at least one of different groups and different resource indexes included in the one channel state information report.

4. The terminal according to claim 1, wherein, in the one channel state information report, a field indicating whether it is UL group-based beam reporting is included.

5. A wireless communication method of a terminal, comprising: a step of receiving information related to a setting of group-based beam reporting and information related to a setting of simultaneous UL transmission; and a step of performing control to perform UL group-based beam reporting and DL group-based beam reporting in one channel state information report when both the group-based beam reporting and the simultaneous UL transmission are effective.

6. A base station, comprising: a transmitting unit, configured to transmit information related to a setting of group-based beam reporting and information related to a setting of simultaneous UL transmission; and a control unit, configured to give an indication to perform UL group-based beam reporting and DL group-based beam reporting in one channel state information report by using the information related to the setting of group-based beam reporting and the information related to the setting of simultaneous UL transmission.

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