Terminal, wireless communication method, base station, and system

Abstract

A terminal according to one aspect of the present disclosure includes: a receiving unit that receives setting information indicating whether to include an identifier of a panel associated with a CSI report in the CSI report; and a transmitting unit that, when the setting information is received, transmits a CSI report including the identifier of the panel. According to one aspect of the present disclosure, it is possible to appropriately utilize a CSI report specific to a panel.

Description

Technical Field

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

[0002] In a Universal Mobile Telecommunications 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] Research is also being conducted on a subsequent system of LTE (for example, also referred to as the 5th generation mobile communication system (5G), 5G+ (plus), New Radio (NR), 3GPP Rel. 15 and later, etc.).

[0004] In an existing LTE system (for example, 3GPP Rel. 8-14), a user terminal (User Equipment (UE)) uses at least one of a UL data channel (for example, Physical Uplink Shared Channel (PUSCH)) and a UL control channel (for example, Physical Uplink Control Channel (PUCCH)) to transmit Uplink Control Information (UCI).

[0005] Prior Art Documents

[0006] Non-Patent Documents

[0007] 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

[0008] (E-UTRAN); Overall Description; Stage 2 (Release 8)”, April 2010 Summary of the Invention

[0009] Problems to be Solved by the Invention

[0010] For future wireless communication systems (e.g., Rel. 17 NR), uplink (UL) beam selection for user terminals (user terminal, User Equipment (UE)) with multiple panels (multi-panel) is being studied.

[0011] When the UE has the ability of beam correspondence, activation / deactivation, handover, etc. of the UE's panels can also be determined based on DL CSI measurement. Therefore, it is preferable for the UE to be able to report panel specific CSI reports.

[0012] However, so far, the research on panel specific CSI reports has not progressed. If panel specific CSI reports cannot be utilized, there is a concern that appropriate CSI reports cannot be made and the communication throughput will decrease.

[0013] Therefore, one object of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately utilize panel specific CSI reports.

[0014] Means for Solving the Problems

[0015] A terminal according to one aspect of the present disclosure is characterized by having: a receiving unit that receives setting information indicating whether to include an identifier of a panel associated with a CSI report in the CSI report; and a transmitting unit that, when the setting information is received, transmits a CSI report including the identifier of the panel.

[0016] Effects of the Invention

[0017] According to one aspect of the present disclosure, panel specific CSI reports can be appropriately utilized. Description of the Drawings

[0018] Figure 1A And Figure 1B is a diagram showing an example of an RRC information element related to CSI report setting and CSI resource setting.

[0019] 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.

[0020] Figure 3 This is a diagram showing an example of an RRC information element related to the TCI state.

[0021] Figure 4 This is a diagram showing an example of the correspondence of the CSI association setting in Rel.15 NR.

[0022] Figure 5 This is an excerpt of the RRC information element "CSI-ReportConfig".

[0023] Figure 6 This is a diagram showing an example of a CSI report in Rel.15 NR.

[0024] Figure 7 This is a diagram showing an example of the setting content of the CSI report setting in the first embodiment.

[0025] Figure 8 This is a diagram showing an example of the setting content of the report quantity (reportQuantity) in the first embodiment.

[0026] Figure 9 This is a diagram showing an example of the setting content of the report quantity (reportQuantity-r17) in the first embodiment.

[0027] Figure 10 This is a diagram showing an example of group-based reporting in the first embodiment.

[0028] Figure 11 This is a diagram showing the first example of a CSI report.

[0029] Figure 12 This is a diagram showing a setting example of the number of CRI / SSBRI in option 1-3.

[0030] Figure 13 This is a diagram showing a setting example of the number of CRI / SSBRI in option 1-4.

[0031] Figure 14 This is a diagram showing a setting example of the number of CRI / SSBRI in option 1-5.

[0032] Figure 15 This is a diagram showing the second example of a CSI report.

[0033] Figure 16 This is a diagram showing the third example of a CSI report.

[0034] Figure 17 This is a diagram showing the fourth example of a CSI report.

[0035] Figure 18 This is a diagram showing an example of setting the number of panels in Option 2-1.

[0036] Figure 19 This is a diagram showing an example of setting the number of panels in Option 2-2.

[0037] Figure 20 This is a diagram showing an example of setting the number of panels in Option 2-3.

[0038] Figure 21A This is a diagram showing an example of the relationship between the panel in Option 3-1 and CRI / SSBRI and RSRP. Figure 21B This is a diagram showing an example of the relationship between the panel in Option 3-2 and CRI / SSBRI and RSRP.

[0039] Figure 22A This is a diagram showing an example of the relationship between CRI / SSBRI, RSRP, and panel ID in Option 4-1. Figure 22B This is a diagram showing an example of the relationship between CRI / SSBRI, RSRP, and panel ID in Option 4-2.

[0040] Figure 23 This is an example of setting whether each panel is valid or invalid.

[0041] Figure 24A This is the first example of the mapping of the panel ID of the CSI reporting object. Figure 24B This is the second example of the mapping of the panel ID of the CSI reporting object.

[0042] Figure 25 This is a diagram showing an example of the schematic structure of a wireless communication system according to an embodiment.

[0043] Figure 26 This is a diagram showing an example of the structure of a base station according to an embodiment.

[0044] Figure 27 This is a diagram showing an example of the structure of a user terminal according to an embodiment.

[0045] Figure 28 This is a diagram showing an example of the hardware structure of a base station and a user terminal according to an embodiment. Detailed Embodiment

[0046] (CSI)

[0047] In NR, the UE uses a reference signal (or the resources for the reference signal) to measure the channel state and feedbacks (reports) the channel state information (Channel State Information (CSI)) to the network (e.g., the base station).

[0048] The UE can also use at least one of Channel State Information Reference Signal (CSI-RS), Synchronization Signal / Broadcast Channel (Synchronization Signal / Physical Broadcast Channel (SS / PBCH)) block, Synchronization Signal (SS), and DeModulation Reference Signal (DMRS) to measure the channel state.

[0049] The CSI-RS resource can also include at least one of Non Zero Power (NZP) CSI-RS resource, Zero Power (ZP) CSI-RS resource, and CSI Interference Measurement (CSI-IM) resource.

[0050] The resource for measuring the signal component for CSI can also be referred to as Signal Measurement Resource (SMR) or Channel Measurement Resource (CMR). For example, SMR (CMR) can also include NZP CSI-RS resources, SSB, etc. for channel measurement.

[0051] The resource for measuring the interference component for CSI can also be referred to as Interference Measurement Resource (IMR). For example, IMR can also include at least one of NZP CSI-RS resources, SSB, ZP CSI-RS resources, and CSI-IM resources for interference measurement.

[0052] The SS / PBCH block is a block that contains synchronization signals (e.g., Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS)) and PBCH (and the corresponding DMRS), and can also be referred to as an SS block (SSB), etc.

[0053] 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.

[0054] CSI may also have multiple parts. CSI Part 1 may also include information with a relatively small number of bits (e.g., RI). CSI Part 2 may also include information with a relatively large number of bits (e.g., CQI) such as information determined based on CSI Part 1.

[0055] In addition, CSI may also be classified into several CSI types. The type, size, etc. of the reported information may also vary according to the CSI type. For example, it may also be defined as a CSI type (also referred to as type I CSI, CSI for single beam, etc.) set for communication using a single beam, and a CSI type (also referred to as type II CSI, CSI for multi-beam, etc.) set for communication using multiple beams. The usage of the CSI type is not limited to this.

[0056] As a feedback method for CSI, research is being conducted on periodic CSI (P-CSI) reporting, aperiodic CSI (A-CSI) reporting, semi-persistent CSI (SP-CSI) reporting, etc.

[0057] The UE may also be notified of CSI measurement setting information using higher layer signaling, physical layer signaling, or a combination thereof.

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

[0059] For example, the MAC signaling may also use a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. For example, the 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.

[0060] For example, the physical layer signaling may also be Downlink Control Information (DCI).

[0061] For example, the CSI measurement setting information may also be set 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.

[0062] Figure 1A And FIG. 1B is an example of an RRC information element related to the CSI report setting and the 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 FIG. 1B is described using the ASN.1 (Abstract Syntax Notation One) notation. In addition, the drawings related to other RRC information elements (or RRC parameters) of the present disclosure are also described using the same notation.

[0063] As Figure 1AAs 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) (“CSI-ResourceConfigId”) of the CSI resource configuration information.

[0064] In addition, one or more of the IDs of the CSI resource configuration information corresponding to each resource information (which may also be referred to as the CSI resource configuration ID) may be the same value or may be different values respectively.

[0065] 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”).

[0066] The resource type indicates the time-domain behavior of the CSI-RS resource configuration and may be set to “aperiodic”, “semi-persistent”, “periodic”. The corresponding CSI-RS may also be referred to as A-CSI-RS, SP-CSI-RS, P-CSI-RS respectively.

[0067] In addition, the resources for channel measurement may also be used for the calculation of, for example, CQI, PMI, L1-RSRP, etc. In addition, the resources for interference measurement may also be used for the calculation of L1-SINR, L1-SNR, L1-RSRQ, and other interference-related metrics.

[0068] When the interference measurement is performed by CSI-IM, each CSI-RS for channel measurement may also be associated with the CSI-IM resource from the perspective of resources based on the order of the CSI-RS resources and the CSI-IM resources in the corresponding resource set.

[0069] "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 respectively correspond to more than one NZP CSI-RS resource set ID ("NZP-CSI-RS-ResourceSetId") and CSI-SSB resource set ID ("CSI-SSB-ResourceSetId"), and can also be used to determine the resources of the measurement object.

[0070] Figure 2A And FIG. 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 more than one NZP CSI-RS resource ID ("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 ("TCI-stateId") indicating the transmission setting indication state (TCI state (Transmission Configuration Indication state)). 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 more than one SSB index information ("SSB-Index"). The SSB index information is, for example, an integer from 0 to 63, and can also be used to identify the SSB within the SS burst.

[0074] Figure 3 FIG. 2C 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 the Quasi-Co-Location (QCL) of a channel or a signal, and can also be referred to as spatial reception parameters, spatial relation information, etc. The TCI state can also be set or assigned to the UE for each channel or for each signal.

[0076] As Figure 3 shown, the TCI state information (“TCI-State”) can also include a TCI state ID and more than one 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] For at least one of a signal and a channel (referred to as signal / channel), the UE can also control reception processing (e.g., at least one of reception, demapping, demodulation, decoding, reception beam determination, etc.), transmission processing (e.g., at least one of transmission, mapping, modulation, coding, transmission beam determination, etc.), etc. based on the TCI state associated with the TCI state ID of the signal / channel.

[0078] As Figure 2A shown, regarding the P-CSI-RS, the associated TCI state can also be set by RRC. Regarding the 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] Summarizing the description so far, the CSI report setting (which can also be abbreviated as the report setting for short) is associated with more than one CSI resource setting using the ID of the CSI resource setting information. In addition, the CSI resource setting (which can also be abbreviated as the resource setting for short) is associated with the setting of more than one CSI-RS resource set using the CSI-RS resource set ID. And the setting of the CSI-RS resource set (which can also be abbreviated as the RS resource set setting for short) is associated with the setting of more than one CSI-RS resource (which can also be abbreviated as the RS resource setting for short) using the CSI-RS resource ID.

[0080] Figure 4FIG. 0 is an example corresponding to the setting of CSI association in Rel. 15 NR. In this example, the UE may also be set to report setting #0 to #N-1, resource setting #0 to #M-1, RS resource set setting #0 to #S-1, and RS resource setting #0 to #K-1.

[0081] Report setting #0 corresponds to resource settings #0 and #2, for example. Report setting #1 corresponds to resource settings #1 and #3, for example.

[0082] In addition, resource setting #0 corresponds to RS resource set settings #0 and #1, for example. In addition, RS resource set setting #0 corresponds to RS resource settings #0 and #1, for example.

[0083] In addition, one RS resource setting may also be associated with more than one RS resource set setting. One RS resource set setting may also be associated with more than one resource setting. One resource setting may also be associated with more than one report setting.

[0084] (Beam Management)

[0085] In Rel. 15 NR, a method of beam management (Beam Management (BM)) has been studied. In this beam management, beam selection is being studied based on the L1-RSRP reported by the UE. Changing (switching) the beam of a certain signal / channel may also be equivalent to changing at least one of the TCI state and QCL assumption of the signal / channel.

[0086] The UE may also use the uplink control channel (Physical Uplink Control Channel (PUCCH)) or the uplink shared channel (Physical Uplink Shared Channel (PUSCH)) to report (send) the measurement results for beam management. The measurement results may also be, for example, CSI including at least one of L1-RSRP, L1-RSRQ, L1-SINR, L1-SNR, etc.

[0087] The measurement results (e.g., CSI) reported for beam management may also be referred to as beam measurement, beam measurement report, beam report, beam report CSI, etc.

[0088] The CSI measurement for beam reporting may also include interference measurement. The UE may also use the resources for CSI measurement to measure channel quality, interference, etc. and derive a beam report.

[0089] The result of at least one of channel quality measurement and interference measurement can also be included in the beam report. The result of channel quality measurement can also include, for example, L1-RSRP. The result of interference measurement can also include L1-SINR, L1-SNR, L1-RSRQ, other interference-related metrics (e.g., any metric other than L1-RSRP), etc.

[0090] Reference Figure 5 , which describes the CSI report setting information of NR beam management considering the current situation. Figure 5 It is an excerpt of the RRC information element "CSI-ReportConfig". Figure 5 Excerpted Figure 1A other parts of the same CSI report setting information (CSI-ReportConfig).

[0091] The CSI report setting information can also include "report quantity" (which can also be represented by the RRC parameter "reportQuantity") as information of parameters reported through one report instance (e.g., one CSI). The report quantity is defined by the type of the ASN.1 object of "choice". Thus, one of the parameters (cri-RSRP, ssb-Index-RSRP, etc.) specified as the report quantity is set.

[0092] For a UE in which the higher-layer parameter (e.g., the RRC parameter "groupBasedBeamReporting") included in the CSI report setting information is set to be valid (enabled), for each report setting, it can include multiple beam measurement resource IDs (e.g., SSBRI, CRI) and multiple corresponding measurement results (e.g., L1-RSRP) in the beam report.

[0093] For a UE in which the number of reported RS resources for reporting objects is set to more than one through the higher-layer parameter (e.g., the RRC parameter "nrofReportedRS") included in the CSI report setting information, for each report setting, it can include more than one beam measurement resource ID and more than one corresponding measurement result (e.g., L1-RSRP) in the beam report.

[0094] In Rel.15 NR, cri-RSRP and ssb-Index-RSRP in the report quantity are associated with beam management. A UE set with cri-RSRP reports CRI and the L1-RSRP corresponding to the CRI. A UE set with ssb-Index-RSRP reports SSBRI and the L1-RSRP corresponding to the CRI.

[0095] Figure 6 This is a diagram showing an example of a CSI report in Rel.15 NR. It shows the mapping order of CSI fields included in one CSI report (the nth CSI report #n) for CSI / RSRP or SSBRI / RSRP reporting, which is specified in Table 6.3.1.1.2-8 of 3GPP TS38.212 V15.7.0.

[0096] Figure 6 The CSI report can include more than one group of CRI / SSBRI and RSRP. The number of these groups can also be set by a higher-layer parameter (e.g., the RRC parameter "nrofReportedRS") indicating the number of reference signal resources for reporting. When nrofReportedRS = X (X = {1, 2, 3, 4}), groups of CRI / SSBRI and RSRP below the Xth index (#X) can also be included in the CSI report.

[0097] In addition, RSRP#1 can also be a field of a specific number of bits (e.g., m bits) representing the maximum measured value of L1-RSRP, and differential (Differential) RSRP#2-#4 can also be fields of fewer bits (e.g., n bits) than the specific number of each RSRP represented by the difference from the value of RSRP#1. In Rel.15 NR, m = 7 and n = 4.

[0098] In addition, in NR after Rel.16, nrofReportedRS can also be a value of 4 or more, and Y can also be 4 or more. More than 4 groups of CRI / SSBRI and RSRP can also be included in the CSI report. The above m, n, etc. are not limited to 7, 4 respectively.

[0099] (Multi-panel)

[0100] For future wireless communication systems (e.g., Rel.17 NR), research is being conducted on uplink (UL) beam selection for user terminals (user terminal, User Equipment (UE)) with multiple panels (multi-panel).

[0101] When the UE has the ability of Beam Correspondence (BC) (e.g., the RRC parameter "beamCorrespondenceWithoutUL"), the UE can also mainly determine an appropriate UL beam based on DL measurements (e.g., DL reference signal measurements) without UL beam scanning.

[0102] In addition, in the case where the UE has the ability of beam correspondence, it is preferable that the UE can report panel-specific CSI reports.

[0103] However, so far, the research on panel-specific CSI reports has not progressed. For example, research has not been conducted on whether the setting and content of CSI reports support panel-specific reports and how to support them (that is, whether to associate CSI reports with the UE panel and how to associate them). If panel-specific CSI reports cannot be utilized, appropriate CSI reports cannot be made, and the communication throughput may decrease.

[0104] Therefore, the inventors of the present invention have come up with a method for appropriately utilizing panel-specific CSI reports.

[0105] Hereinafter, with reference to the drawings, embodiments of the present disclosure will be described in detail. The wireless communication methods according to the respective embodiments can be applied separately or in combination.

[0106] In addition, in the present disclosure, a panel, an Uplink (UL) transmission entity, a TRP, a spatial relationship, a control resource set (CORESET), a PDSCH, a codeword, a base station, a specific antenna port (for example, a demodulation reference signal (DMRS) port), a specific antenna port group (for example, a DMRS port group), a specific group (for example, a code division multiplexing (CDM) group, a specific reference signal group, a CORESET group), etc. can also be mutually replaced. For example, a panel identifier (ID) and a panel can also be mutually replaced. A TRP ID and a TRP can also be mutually replaced.

[0107] In addition, in the present disclosure, "A / B" can also be interpreted as "at least one of A and B". In the present disclosure, information related to beam measurement can also be at least one of a CRI, an SSBRI, an RSRP, and an SINR.

[0108] (Wireless communication method)

[0109] <First Embodiment>

[0110] The UE can also receive configuration information from the network indicating whether to include a panel (panel identifier, panel ID) associated with the CSI report in the CSI report. When receiving this configuration information, the UE sends a CSI report including the panel ID to the network. The panel ID can be included explicitly in the CSI report. For example, when reusing the CSI report of Rel. 15, it can also be included implicitly. The configuration information indicating whether to include a panel (panel ID) associated with the CSI report in the CSI report is, for example, the CSI report configuration (CSI-ReportConfig), reporting quantity (reportQuantity, reportQuantity-r17), group-based reporting (groupBasedBeamReporting), etc., which will be described later.

[0111] Figure 7 This is an example of the configuration content of the CSI report configuration in the first embodiment. As Figure 7 shown, the CSI report configuration information (CSI-ReportConfig) as an RRC information element can also include "reportwithPanelID" as the configuration information indicating whether to include the panel ID associated with the CSI report in the CSI report.

[0112] The UE can also be controlled such that when receiving CSI report configuration information indicating reportwithPanelID = "enabled" (valid), the associated panel ID is included in the CSI report corresponding to this CSI report configuration information. The UE can also be controlled such that when receiving CSI report configuration information that does not include reportwithPanelID (or indicates reportwithPanelID = "disabled" (invalid)), the panel ID is not included in the CSI report corresponding to this CSI report configuration information.

[0113] Figure 8 This is a diagram showing an example of the configuration content of the reporting quantity (reportQuantity). In Figure 8Among them, as parameters related to the CSI report, "cri-RI-PMI-CQI-withPanelID-r17", "cri-RI-i1-withPanelID-r17", "cri-RI-i1-CQI-withPanelID-r17", "cri-RI-CQI-withPanelID-r17", "cri-rsrp-withPanelID-r17", "ssb-Index-RSRP-withPanelID-r17", "cri-RI-LI-PMI-CQI-withPanelID-r17" are set within reportQuantity which is an RRC information element, and any one of them is selected. Each parameter is an example of setting information indicating whether to include the panel ID associated with the CSI report in the CSI report.

[0114] Figure 9 is a diagram showing an example of the setting content of reportQuantity-r17. In Figure 9 Among them, as parameters related to the CSI report, "cri-RI-PMI-CQI-withPanelID", "cri-RI-i1-withPanelID", "cri-RI-i1-CQI-withPanelID", "cri-RI-CQI-withPanelID", "cri-rsrp-withPanelID", "ssb-Index-RSRP-withPanelID", "cri-RI-LI-PMI-CQI-withPanelID" are set in the RRC information element "reportQuantity-r17", and any one of them is selected. "reportQuantity-r17" represents the report quantity corresponding to Rel.17. Each parameter is an example of setting information indicating whether to include the panel ID associated with the CSI report in the CSI report.

[0115] In addition, in the present disclosure, "-R17" or "-r17" means a field or parameter defined (used) by 3GPP Rel.17, but the field name, parameter name, defined version, etc. are not limited thereto.

[0116] In addition, in the second embodiment described later, with Figure 8 "cri-rsrp-withPanelID-r17" or "ssb-Index-RSRP-withPanelID-r17" set, or Figure 9on the premise of "cri-rsrp-withPanelID" or "ssb-Index-RSRP-withPanelID".

[0117] Figure 10 is a diagram showing an example of group-based reporting. In Figure 10 it, within the group-based reporting (groupBasedBeamReporting) as an RRC information element, "reportwithPanelID" is included as setting information indicating whether to include the panel ID associated with the CSI report in the CSI report. As Figure 10 shown, "reportwithPanelID" can also be set in both the case where groupBasedBeamReporting is "enabled" and the case where it is "disabled".

[0118] According to this embodiment, a CSI report including a panel ID can be appropriately reported to the network.

[0119] <Second Embodiment>

[0120] In the second embodiment, in the CSI report transmitted by the UE, the panel ID can also be associated with at least one of CRI / SSBRI and RSRP.

[0121] [Method 2-1]

[0122] In Method 2-1, in the CSI report, one RSRP and one panel (panel ID) can also be associated with one CRI / SSBRI. That is, in the CSI report, one panel can also be associated with information related to one beam measurement. The UE can also perform CSI measurement of one panel for one CRI / SSBRI and report (CSI report) the measurement result.

[0123] Figure 11 is a diagram showing a first example of the CSI report. In Figure 11 the example shown, RSRP#1 and panel ID#1 are associated with CRI or SSBRI#1. In addition, RSRP#2 or differential RSRP#2 and panel ID#2 are associated with CRI or SSBRI#2. That is, in the CSI report, one RSRP and one panel ID (panelID) are associated with one CRI / SSBRI. Additionally, Figure 11 panelID#X (X: 1 to 4) in Figure 11"CRI or SSBRI" in it can also be "CRI" or "SSBRI". The same applies to other drawings.

[0124] The reporting examples of RSRP and panel ID are described. The UE can also include RSRP in descending order of quality (value) in the CSI report and include the panel ID associated with each RSRP. For example, the RSRP measured in each panel is as follows.

[0125] RSRP of Panel#1: 20, 18, 16, 10

[0126] RSRP of Panel#2: 22, 15, 10, 5

[0127] Since the reported panel IDs are four, when reporting RSRP in descending order, the UE selects 22, 20, 18, 16 from the above RSRPs. And the UE reports RSRP in the following way. In addition, differential RSRP#X represents the difference from RSRP#1.

[0128] RSRP#1 = 22

[0129] Differential RSRP#2 = 2

[0130] Differential RSRP#3 = 4

[0131] Differential RSRP#4 = 6

[0132] Furthermore, the UE reports the panel IDs associated with the above-reported RSRPs (22, 20, 18, 16) in the following way.

[0133] panelID#1 = 2

[0134] panelID#2 = 1

[0135] panelID#3 = 1

[0136] panelID#4 = 1

[0137] The UE can also receive the number of CRI / SSBRI of the CSI report object through a higher-layer parameter (RRC parameter). For example, the number of CRI / SSBRI of the CSI report object is set by any one of the following options 1 to 5.

[0138] (Option 1-1)

[0139] Regarding the number of CRI / SSBRI of the CSI report object, the Rel.15 mechanism is reused.

[0140] (Option 1-2)

[0141] The number of CRI / SSBRI for the CSI reporting object is predefined. For example, when the RRC information element "groupBasedBeamReporting" is valid (enabled), a new value independent of Rel.15 can also be defined.

[0142] (Option 1-3)

[0143] The number of CRI / SSBRI for the CSI reporting object is set in the RRC information element "groupBasedBeamReporting". When the RRC information element "groupBasedBeamReporting" is valid (enabled), the number of CRI / SSBRI for the CSI reporting object can also be set. Even when "groupBasedBeamReporting" is invalid (disabled), a new value (nrofReportedRS-withPanelID) independent of the Rel.15 value (nrofReportedRS) can be set.

[0144] Figure 12 is a diagram showing an example of setting the number of CRI / SSBRI in Option 1-3. In Figure 12 , the number of CRI / SSBRI is set in "nrofReportedRS-withPanelID" within the RRC information element "groupBasedBeamReporting". Additionally, in this disclosure, a value corresponding to the number of reported RSs (nrofReportedRS-withPanelID) in the case of having a panel ID is not shown, but it can be, for example, an integer value or an enumerated type value representing a quantity same as nrofReportedRS.

[0145] Additionally, when a new parameter "groupBasedBeamReporting_R17" is used as an RRC information element, "groupBasedBeamReporting_R17" can also include information on the number of CRI / SSBRI (or the number of reported RSs in the case of having a panel ID) for each of multiple groups. Additionally, the values of the number of CRI / SSBRI (or the number of reported RSs in the case of having a panel ID) for each group can correspond to different panels. The number of groups can also be set as an RRC parameter. The number of groups can also be set to a maximum of 2 or a value greater than that according to the UE capability. UE capability information related to the number of groups supported by the UE can also be sent to the network.

[0146] (Option 1-4)

[0147] The number of CRI / SSBRI of the CSI reporting object is set in the RRC information element "CSI-ReportConfig". Figure 13 It is a diagram showing a setting example of the number of CRI / SSBRI in Option 1-4. In Figure 13 , the number of CRI / SSBRI is set in "nrofreportedRS" (which can also be nrofReportedRS-withPanelID) within the RRC information element "reportWithPanelID".

[0148] (Option 1-5)

[0149] The number of CRI / SSBRI of the CSI reporting object is set in the newly introduced report quantity (reportQuantity) of the RRC information element. Figure 14 It is a diagram showing a setting example of the number of CRI / SSBRI in Option 1-5. In Figure 14 , the number of CRI / SSBRI is set in "cri-RSRP-withPanelID{nrofReportedRS}" within the RRC information element "reportQuantity".

[0150] Figure 15 It is a diagram showing a second example of CSI reporting. In Figure 15 In the CSI reporting shown, as the CSI fields corresponding to the panel ID, a "Panel ID" is assigned. For example, when the number of panels is 2, 1 bit (e.g., representing 0 or 1) is assigned to the panel ID. The number of bits assigned to the panel ID can be either a fixed value determined by the specification or can be changed according to the RRC parameter indicating the number of UE panels or the UE capability (UEcapability) indicating the number of UE panels.

[0151] When sending a CSI report (CSI-report) to two panels, the UE can also send the following two CSI reports, for example. The values of CSI-report#0 and CSI-report#1 represent RSRP.

[0152] CSI-report#0 for Panel #0: 20, 18, 15, 10, …

[0153] CSI-report#1 for Panel #1: 22, 15, 10, 5, …

[0154] For CSI-report#0 and CSI-report#1, the UE can also use Figure 15 the structure of the CSI report to report in the following manner.

[0155] CSI-report#0: RSRP#1 = 20, differential RSRP#2 = 2, …, panel ID = 0

[0156] CSI-report#1: RSRP#1 = 22, differential RSRP#2 = 7, …, panel ID = 1

[0157] [Method 2-2]

[0158] In Method 2-2, in the CSI report, one RSRP can also be associated with one CRI / SSBRI, and one panel (panel ID) can also be associated with multiple CRI / SSBRI. The UE can also report multiple CRI / RSRP associated with one panel in one CSI report.

[0159] Figure 16 is a diagram showing the third example of the CSI report. In Figure 16 , for example, the panel ID can also be associated with CRI or SSBRI#1 and CRI or SSBRI#2. Additionally, the number of reported CRI / SSBRI can also use any one of the methods in Options 1-1 to 1-5 of the above Method 2-1. In Method 2-2, the number of panels corresponding to one CSI is 1.

[0160] [Method 2-3]

[0161] In Method 2-3, in the CSI report, one RSRP can also be associated with one CRI / SSBRI, and multiple panels (panel ID) can also be associated with multiple CRI / RSRP. That is, in the CSI report, multiple panels can also be associated with information related to multiple beam measurements. The UE can also report multiple CRI / RSRP associated with multiple panels in one CSI report.

[0162] Figure 17 is a diagram showing the fourth example of the CSI report. The difference from Figure 16 is that panel ID#1 and panel ID#2 are included as panel IDs. In Figure 17 , for example, panel ID#1 and panel ID#2 can also be associated with CRI or SSBRI#1 to #4.

[0163] In addition, the number of reported CRI / SSBRI can also be determined by any one of options 1-1 to 1-5 of the above method 2-1. In method 2-3, the number of panels corresponding to a CSI can also be one or more. The number of panels of the CSI reporting object can also be set by any one of the following options 2-1 to 2-5.

[0164] (Option 2-1)

[0165] The number of panels of the CSI reporting object is set in the RRC information element "groupBasedBeamReporting". Figure 18 is a diagram showing a setting example of the number of panels in Option 2-1. In Figure 18 the number of panels is set in "nrofReportedpanel" within the RRC information element "groupBasedBeamReporting". In addition, in the present disclosure, the value corresponding to the number of panels of the reporting object (nrofReportedpanel) is not shown, but it can be, for example, an integer value or an enumerated type value representing a quantity similar to nrofReportedRS.

[0166] (Option 2-2)

[0167] The number of panels of the CSI reporting object is set in the RRC information element "CSI-ReportConfig". Figure 19 is a diagram showing a setting example of the number of panels in Option 2-2. In Figure 19 the number of panels is set in "nrofreportedpanel" within the RRC information element "CSI-ReportConfig".

[0168] (Option 2-3)

[0169] The number of panels of the CSI reporting object is set in the reporting quantity "reportQuantity" newly introduced as an RRC information element. Figure 20 is a diagram showing a setting example of the number of panels in Option 2-3. In Figure 20 the number of panels is set in "cri-RSRP-withPanelID{nrofReportedpanel}" within the RRC information element "reportQuantity".

[0170] (Option 2-4)

[0171] The number of panels of the CSI reporting object is predefined.

[0172] (Option 2-5)

[0173] The number of panels to be reported as CSI is set as the number of activated panels.

[0174] In addition, the above Method 2-2 can also be a special case of Method 2-3. For example, when the number of panels is predefined as 1 by the methods of Option 2-1 to 2-5, it can also correspond to Method 2-2.

[0175] For the association between multiple panels (panel IDs) of CSI reporting objects and CRI / SSBRI as well as RSRP, the UE can also apply the following Method 3-1 or 3-2.

[0176] (Option 3-1)

[0177] In Option 3-1, a panel (panel ID) is associated with consecutive CRI / SSBRI and RSRP. Specifically, panel ID #i can also be associated with CRI / SSBRI and RSRP with serial numbers (#X) from (i - 1)k + 1 to ik. K is the number of CRI / SSBRI reported for each panel. For example, panel ID #1 is associated with the first k (serial numbers 1 to k) CRI / SSBRI and RSRP. Panel ID #2 is associated with CRI / SSBRI and RSRP with serial numbers from k + 1 to 2k.

[0178] Figure 21A It is a diagram showing an example of the association between a panel in Option 3-1 and CRI / SSBRI as well as RSRP. Figure 21A The example shown represents the association of panel ID #1 when k = 2. Panel ID #1 is associated with CRI or SSBRI #1, CRI or SSBRI #2, RSRP #1, and RSRP #2.

[0179] (Option 3-2)

[0180] In Option 3-2, a panel (panel ID) is associated with CRI / SSBRI and RSRP at specific intervals. Specifically, panel ID #i can also be associated with CRI / SSBRI and RSRP with serial numbers (#X) of (i, n + i, 2*n + i,... (k - 1)*n + i). K is the number of CRI / SSBRI reported for each panel. n is the number of panels reported. For example, when k = 2 and n = 2, panel ID #1 is associated with CRI / SSBRI and RSRP with serial numbers (#1, #3). In addition, panel ID #2 is associated with CRI / SSBRI and RSRP with serial numbers (#2, #4).

[0181] Figure 21BThis is a diagram showing an example of the association between the panel in Option 3-2 and CRI / SSBRI and RSRP. In Figure 21B In the example shown, the association of Panel ID #1 is shown for k = 2 and n = 2. Panel ID #1 is associated with CRI or SSBRI #1, CRI or SSBRI #3, RSRP #1, and RSRP #3.

[0182] [Method 2-4]

[0183] The UE can also perform CSI measurements on multiple panels for one CRI / SSBRI and report (CSI report) the measurement results. In addition, in the CSI report, multiple panels (panel IDs) / multiple RSRPs can also be associated with one CRI / SSBRI. That is, in the CSI report, multiple panels can also be associated with information related to one beam measurement. In addition, one panel can also be associated with one RSRP.

[0184] The number of CRI / SSBRIs for the CSI report object can also be set by any one of Options 1-1 to 1-5 in Method 2-1 above. The number of panels for the CSI report object can also be set by any one of Options 2-1 to 2-5 in Method 2-3 above. Method 2-1 can also be a special case of Method 2-4 (the case where the number of panels to be reported is predefined as 1).

[0185] (Option 4-1)

[0186] In Option 4-1, CRI / SSBRI is associated with consecutive RSRPs and panels (panel IDs). Specifically, CRI or SSBRI #i can also be associated with RSRPs with serial numbers (#X) from (i - 1)k + 1 to ik and panels. K is the number of RSRPs and panels reported for each CRI / SSBRI (CRI or SSBRI). For example, CRI or SSBRI #1 is associated with the first k (serial numbers 1 to k) RSRPs and Panel ID. CRI or SSBRI #2 is associated with RSRPs with serial numbers k + 1 to 2k and Panel ID.

[0187] Figure 22A This is a diagram showing an example of the association between CRI / SSBRI in Option 4-1 and RSRP and Panel ID. In Figure 22A In the example shown, the association of CRI or SSBRI #1 for k = 2 is shown. CRI or SSBRI #1 is associated with RSRP #1, RSRP #2, Panel ID #1, and Panel ID #2.

[0188] (Option 4-2)

[0189] In Option 4-2, the CRI / SSBRI is associated with the RSRP at a specific interval and the panel (panel ID). The CRI or SSBRI#i can also be associated with the RSRP with serial numbers (i, n+i, 2*n+i, … (k-1)*n+i) and the panel. K is the number of RSRP and panels reported for each CRI / SSBRI. n is the number of CRI / SSBRI reported. For example, when k = 2 and n = 2, the CRI or SSBRI#1 is associated with the RSRP with serial numbers (#1, #3) and the panel. In addition, the CRI or SSBRI#2 is associated with the RSRP with serial numbers (#2, #4) and the panel.

[0190] Figure 22B is a diagram showing an example of the association between the CRI / SSBRI and the RSRP and the panel ID in Option 4-2. In Figure 22B the example shown, the association of the CRI or SSBRI#1 when k is 2 is shown. The CRI or SSBRI#1 is associated with RSRP#1, RSRP#3, panel ID#1, and panel ID#3.

[0191] According to the second embodiment, the UE can appropriately report the association between the information related to beam measurement and the panel (panel ID).

[0192] <Third Embodiment>

[0193] The UE can also use the following Method 3-1 or 3-2 when indicating the panel ID in the content of the CSI report. Figure 23 is a setting example showing whether each panel is valid or invalid. As Figure 23 shown, Panel#1 and Panel#4 are deactivated, and Panel#2 and Panel#3 are activated. Whether each panel is valid or invalid can also be set (indicated, activated) for the UE based on higher layer signaling (e.g., RRC signaling, MAC CE), physical layer signaling (e.g., DCI), or a combination thereof.

[0194] [Method 3-1]

[0195] The UE can also assume that: regardless of whether the panel is valid or invalid, the field of the panel ID for CSI reporting can be expressed as all the IDs (panel IDs) used to identify the panel. In addition, in the present disclosure, the panel ID can be either a new ID or another reference signal resource ID (or resource set ID) (e.g., SRS resource ID / SRS resource set ID). Figure 24A is a first example showing the mapping of the panel ID for CSI reporting. As Figure 24AAs shown, in Method 3-1, the UE maps the value of the field for the panel ID to all panels.

[0196] [Method 3-2]

[0197] The UE can also be conceived as: configured to consider whether the panel is valid or invalid, and the field for the panel ID used for CSI reporting can represent the panel ID of the valid panel. Figure 24B This is the second example of the mapping of the panel ID representing the CSI reporting object. As Figure 23 shown, the valid panels are Panel#2 and Panel#3. Thus, as Figure 24B shown, the UE maps the value of the field for the panel ID to Panel#2 and Panel#3, and does not map the value of the field for the panel ID to Panel#1 and Panel#4 which are invalid. According to Method 3-2, the number of bits of the field representing the panel ID can be appropriately reduced.

[0198] According to the third embodiment, it is possible to consider whether the panel is valid or invalid and flexibly represent the panel ID in the field for the panel ID used for CSI reporting.

[0199] According to each of the embodiments described above, the CSI reporting unique to the panel can be appropriately utilized.

[0200] (Wireless communication system)

[0201] Hereinafter, the structure of a wireless communication system according to an embodiment of the present disclosure will be described. In this wireless communication system, one or a combination of the above-described wireless communication methods according to the embodiments of the present disclosure is used for communication.

[0202] Figure 25 This is an example of a schematic structure of a wireless communication system according to an embodiment. The wireless communication system 1 can also be a system that realizes communication by using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), 5th generation mobile communication system New Radio (5G NR), etc.

[0203] 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 so on.

[0204] 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.

[0205] 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))).

[0206] 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, quantity, 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.

[0207] 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).

[0208] 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 also be a sub-6GHz band, and FR2 may also be a band above 24GHz. Additionally, the frequency bands, definitions, etc. of FR1 and FR2 are not limited to this. For example, FR1 may also correspond to a band higher than FR2.

[0209] 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).

[0210] Multiple base stations 10 may also be connected via 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 used as a backhaul between base stations 11 and 12, the base station 11 equivalent to the upper station may also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12 equivalent to the relay station may also be referred to as an IAB node.

[0211] The base station 10 may also be connected to the core network 30 via other base stations 10 or directly. The core network 30 may, for example, also include at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), etc.

[0212] The user terminal 20 may also be a terminal supporting at least one of communication methods such as LTE, LTE-A, 5G, etc.

[0213] 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.

[0214] The wireless access method can also be referred to as a waveform. Additionally, in the wireless communication system 1, other wireless access methods (e.g., other single-carrier transmission methods, other multi-carrier transmission methods) can also be applied to the wireless access methods of the UL and the DL.

[0215] 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., which are shared among the user terminals 20, can also be used.

[0216] Furthermore, 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 user terminals 20, can also be used.

[0217] User data, high-layer control information, System Information Block (SIB), etc. are transmitted through the PDSCH. User data, high-layer control information, etc. can also be transmitted through the PUSCH. In addition, the Master Information Block (MIB) can be transmitted through the PBCH.

[0218] Low-layer control information can also be transmitted through the PDCCH. The low-layer control information can also include, for example, downlink control information (Downlink Control Information (DCI)), and the downlink control information includes scheduling information for at least one of the PDSCH and the PUSCH.

[0219] 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 interpreted as DL data, and the PUSCH can also be interpreted as UL data.

[0220] In the detection of the PDCCH, the Control Resource Set (CORESET) and the 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. 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.

[0221] One search space can also correspond to PDCCH candidates that match one or more aggregation levels. One or more search spaces can also be referred to as a search space set. In addition, the "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting", etc. in the present disclosure can also be replaced with each other.

[0222] Uplink control information (Uplink Control Information (UCI)) including at least one of channel state information (Channel State Information (CSI)), delivery confirmation information (e.g., also referred to as Hybrid Automatic Repeat Request (HARQ-ACK), ACK / NACK, etc.), and scheduling request (Scheduling Request (SR)) can also be transmitted via PUCCH. A random access preamble for establishing a connection with a cell can also be transmitted via PRACH.

[0223] In addition, in the present disclosure, the downlink, uplink, etc. can also be expressed without "link". Furthermore, it can also be expressed as not having "Physical" at the beginning of various channels.

[0224] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. can also be transmitted. In the wireless communication system 1, as the DL-RS, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc. can also be transmitted.

[0225] The synchronization signal can, for example, also be at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) can also be referred to as an SS / PBCH block, an SS block (SS Block (SSB)), etc. In addition, SS, SSB, etc. can also be referred to as reference signals.

[0226] In addition, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a sounding reference signal (Sounding Reference Signal (SRS)) for measurement, a demodulation reference signal (DMRS), etc. can also be transmitted in the wireless communication system 1. In addition, the DMRS can also be referred to as a user terminal-specific reference signal (UE-specific Reference Signal).

[0227] (Base station)

[0228] Figure 26 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.

[0229] 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 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.

[0230] The control unit 110 implements overall control of the base station 10. The control unit 110 can be composed of a controller, a control circuit, etc. described based on common knowledge in the technical field related to the present disclosure.

[0231] The control unit 110 can also control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 can also control transmission / reception, measurement, etc. using the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140. The control unit 110 can also generate data, control information, a sequence, etc. to be transmitted as a signal, and forward them to the transmission / reception unit 120. The control unit 110 can also perform call processing (setting, releasing, etc.) of a communication channel, state management of the base station 10, management of radio resources, etc.

[0232] The transmission / 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 / 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 / reception circuit, etc., which are described based on the common knowledge in the technical field related to the present disclosure.

[0233] The transmission / reception unit 120 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit. The transmission unit may also be composed of a transmission processing unit 1211 and an RF unit 122. The reception unit may also be composed of a reception processing unit 1212, an RF unit 122, and a measurement unit 123.

[0234] The transmission / 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.

[0235] The transmission / reception unit 120 may also transmit the above-mentioned downlink channels, synchronization signals, downlink reference signals, etc. The transmission / reception unit 120 may also receive the above-mentioned uplink channels, uplink reference signals, etc.

[0236] The transmission / reception unit 120 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.

[0237] The transmission / reception unit 120 (transmission processing unit 1211), for example, may also perform processing at the Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 110, and generate a bit string to be transmitted.

[0238] The transmission / reception unit 120 (transmission processing unit 1211) can also perform transmission processing such as channel coding (which may also include error correction coding), modulation, mapping, 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.

[0239] The transmission / reception unit 120 (RF unit 122) can also perform modulation to the radio frequency band, filtering, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transmission / reception antenna 130.

[0240] On the other hand, the transmission / reception unit 120 (RF unit 122) can also perform amplification, filtering, demodulation to the baseband signal, etc. on the radio frequency band signal received through the transmission / reception antenna 130.

[0241] The transmission / reception unit 120 (reception processing unit 1212) can also perform reception processing such as analog-to-digital conversion, fast Fourier transform (FFT) processing, inverse discrete Fourier transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, etc. on the obtained baseband signal, and obtain user data, etc.

[0242] 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)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0243] 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 may also acquire, transmit, etc. user data (user plane data), control plane data, etc. for the user terminal 20.

[0244] 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.

[0245] In addition, the transmission / reception unit 120 may also transmit setting information indicating whether to include the identifier of the panel associated with the CSI report in the CSI report. The transmission / reception unit 120 may also receive the CSI report including the identifier of the panel when the setting information is transmitted.

[0246] In the CSI report, one panel may also be associated with information related to one beam measurement. In the CSI report, multiple panels may also be associated with information related to multiple beam measurements. In the CSI report, multiple panels may also be associated with information related to one beam measurement.

[0247] (User Terminal)

[0248] Figure 27FIG. 0 is an example of 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. Additionally, the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may each include more than one.

[0249] Furthermore, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it can also be assumed that the user terminal 20 also has other functional blocks required for wireless communication. A part of the processing of each unit described below may also be omitted.

[0250] The control unit 210 implements overall control of the user terminal 20. The control unit 210 can be composed of a controller, a control circuit, etc. that can be described based on common knowledge in the technical field related to this disclosure.

[0251] 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.

[0252] 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 composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, etc. that can be described based on common knowledge in the technical field related to this disclosure.

[0253] The transmission / reception unit 220 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit. The transmission unit may be composed of the transmission processing unit 2211 and the RF unit 222. The reception unit may be composed of the reception processing unit 2212, the RF unit 222, and the measurement unit 223.

[0254] The transmission / reception antenna 230 can be composed of an antenna that can be described based on common knowledge in the technical field related to this disclosure, such as an array antenna.

[0255] The transmission / reception unit 220 may also receive the above-mentioned downlink channels, synchronization signals, downlink reference signals, etc. The transmission / reception unit 220 may also transmit the above-mentioned uplink channels, uplink reference signals, etc.

[0256] 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.

[0257] 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.

[0258] 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, filtering 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.

[0259] 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.

[0260] The transmission / reception unit 220 (RF unit 222) may also perform modulation to the radio frequency band, filtering processing, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transmission / reception antenna 230.

[0261] On the other hand, the transmission / reception unit 220 (RF unit 222) may also perform amplification, filtering processing, demodulation to the baseband signal, etc. on the radio frequency band signal received through the transmission / reception antenna 230.

[0262] 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), filtering 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.

[0263] 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.

[0264] 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.

[0265] In addition, the transmission / reception unit 220 may also receive setting information indicating whether to include the identifier of the panel associated with the CSI report in the CSI report. The transmission / reception unit 220 may also transmit a CSI report including the identifier of the panel when the setting information is received.

[0266] In the CSI report, multiple panels may also be associated with information related to multiple beam measurements. In the CSI report, multiple panels may also be associated with information related to one beam measurement.

[0267] (Hardware Structure)

[0268] In addition, the block diagrams used in the description of the above embodiments show 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.

[0269] 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 are 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 of them is as described above, and the implementation method is not particularly limited.

[0270] 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 28 FIG. is an example of 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.

[0271] In addition, in the present disclosure, terms such as device, circuit, equipment, section, unit, etc. can be replaced 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.

[0272] For example, only one processor 1001 is illustrated, but there may be multiple processors. In addition, the processing may be executed by one processor, or may be executed simultaneously, sequentially, or by two or more processors in other ways. In addition, the processor 1001 may also be implemented by one or more chips.

[0273] 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.

[0274] The processor 1001, for example, operates the operating system 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 control unit 110 (210), transmission / reception unit 120 (220), etc. may also be implemented by the processor 1001.

[0275] 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 embodiments can 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.

[0276] The memory 1002 may also be a computer-readable recording medium, and is 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), etc. The memory 1002 can store a program (program code), software module, etc. executable for implementing the wireless communication method according to one embodiment of the present disclosure.

[0277] The storage 1003 may also be a computer-readable recording medium, and is 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.

[0278] 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), 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 installed by a transmitting unit 120a (220a) and a receiving unit 120b (220b).

[0279] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that performs 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).

[0280] 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 each device.

[0281] 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 by at least one of these hardwares.

[0282] (Variant)

[0283] In addition, terms described in this disclosure and terms necessary 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 replaced 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.

[0284] 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.

[0285] Here, the numerology may also refer to communication parameters applied in at least one of the 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 filtering process performed by a transmitter-receiver in the frequency domain, a specific windowing process performed by a transmitter-receiver in the time domain, etc.

[0286] 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.

[0287] 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 PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as PDSCH (PUSCH) mapping type B.

[0288] 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. In addition, time units such as frames, subframes, time slots, mini-slots, and symbols in the present disclosure can also be replaced with each other.

[0289] 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 to say, at least one of the subframe and the TTI can be the subframe (1 ms) in the existing LTE, or a period shorter than 1 ms (for example, 1 - 13 symbols), or a period longer than 1 ms. In addition, the unit representing the TTI may not be referred to as a subframe, but as a time slot, mini-slot, etc.

[0290] Here, the TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in an LTE system, the base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) in units of TTI. In addition, the definition of the TTI is not limited to this.

[0291] The 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. In addition, when the TTI is given, the time interval (for example, the number of symbols) actually mapped with transport blocks, code blocks, codewords, etc. can also be shorter than the TTI.

[0292] In addition, when a time slot or a mini-slot is referred to as a TTI, one or more TTIs (that is, one or more time slots or one or more mini-slots) can also become the minimum time unit for scheduling. In addition, the number of time slots (mini-slot numbers) constituting the minimum time unit of this scheduling can also be controlled.

[0293] 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 the 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.

[0294] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) can also be interpreted as a TTI having a time length exceeding 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can also be interpreted as a TTI having a TTI length less than that of the long TTI and more than 1 ms.

[0295] 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 be the same regardless of the parameter set, for example, it may be 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0296] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of one time slot, one mini-slot, one subframe, or one TTI. One TTI, one subframe, etc. may also be composed of one or more resource blocks respectively.

[0297] 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.

[0298] 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 one subcarrier and one symbol.

[0299] 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 RB may also be determined by the index of the RB 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.

[0300] 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.

[0301] At least one of the set BWPs may 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 interpreted as "BWP".

[0302] In addition, 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 number of symbols and RBs included in a time slot or mini time slot, 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.

[0303] Furthermore, 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.

[0304] In this disclosure, the names used for parameters, etc. are not restrictive names in all aspects. In addition, mathematical expressions using these parameters, etc. can also be different from those explicitly 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.

[0305] 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.

[0306] 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.

[0307] The input and output information, signals, etc. can be stored in a specific location (such as 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.

[0308] The notification of information is not limited to the manners / embodiments described in this disclosure and can also be performed by other methods. For example, the notification of information in this disclosure can also be implemented through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI))), high 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.

[0309] In addition, physical layer signaling can also be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. Furthermore, RRC signaling can also be referred to as an RRC message, such as an RRC Connection Setup message, an RRC Connection Reconfiguration (RRC Connection Re-setting) message, etc. In addition, MAC signaling can also be notified, for example, using a MAC Control Element (MAC CE).

[0310] In addition, the notification of specific information (e.g., the notification of "is X") is not limited to explicit notification and can also be performed implicitly (e.g., by not performing the notification of the specific information or by the notification of other information).

[0311] The determination can be made by a value represented by one bit (0 or 1), can also be made by a true / false value (Boolean value) represented by true or false, and can also be made by a numerical comparison (e.g., comparison with a specific value).

[0312] Software, whether referred to as software, firmware, middleware, micro-code, hardware description language, or by any other name, shall be construed broadly 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, threads of execution, procedures, functions, etc.

[0313] 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.

[0314] In the present disclosure, terms such as "system" and "network" can be used interchangeably. "Network" can also mean a device included in the network (e.g., a base station).

[0315] In the present 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.

[0316] 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 the base station is referred to by terms such as macro cell, small cell, femto cell, pico cell, etc.

[0317] A base station can accommodate one or more (e.g., three) cells. When the 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 a part or the whole of the coverage area of at least one of the base station and the base station subsystem that provides communication services within the coverage range.

[0318] In the present disclosure, terms such as "Mobile Station (MS)", "user terminal", "user device (User Equipment (UE))", "terminal" can be used interchangeably.

[0319] In some cases, the mobile station is also referred to as a 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.

[0320] At least one of the base station and the mobile station may 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 may also be a device mounted on a moving body, the moving body itself, etc. The moving body may be a vehicle (e.g., a car, an airplane, etc.), may also be a moving body that moves in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), and 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.

[0321] In addition, the base station in the present disclosure may also be interpreted as a user terminal. For example, for a structure in which communication between a base station and a user terminal is replaced by communication between multiple user terminals (e.g., may also be referred to as Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.), each method / embodiment of the present disclosure may also be applied. In this case, it may also be a structure in which the user terminal 20 has the functions of the above-mentioned base station 10. In addition, expressions such as "uplink" and "downlink" may also be interpreted as expressions corresponding to inter-terminal communication (e.g., "side"). For example, an uplink channel, a downlink channel, etc. may also be interpreted as a side channel.

[0322] Similarly, the user terminal in the present disclosure may also be interpreted as a base station. In this case, it may also be a structure in which the base station 10 has the functions of the above-mentioned user terminal 20.

[0323] In the present disclosure, an action performed by a base station may sometimes be performed by its upper node according to circumstances. Obviously, in a network including one or more network nodes having a base station, various actions performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (e.g., considering a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0324] Each mode / embodiment described in the present disclosure can be used alone, in combination, or switched during execution. In addition, the processing procedures, sequences, flowcharts, etc. of each mode / embodiment described in the present disclosure can also be rearranged as long as there is no contradiction. For example, for the methods described in the present disclosure, the elements of various steps are presented in an exemplary order, but are not limited to the specific order presented.

[0325] 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 4th generation mobile communication system (4G), the 5th generation mobile communication system (5G), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, next-generation systems extended based on them, etc. In addition, multiple systems can also be combined (e.g., a combination of LTE or LTE-A and 5G) for application.

[0326] The description "based on" used in the present disclosure does not mean "only based on" unless otherwise specified. In other words, the description "based on" means both "only based on" and "at least based on".

[0327] Any reference to an element using terms such as "first", "second", etc. used in this disclosure does not comprehensively define the quantity or order of these elements. These terms can be used in this disclosure as a convenient method for distinguishing between more than two elements. Therefore, the reference to the first and second elements does not mean that only two elements can be adopted, or that the first element must be prior to the second element in a certain form.

[0328] The term "determining" used in this disclosure includes various actions in some cases. For example, "determining" can also consider judging, calculating, computing, processing, deriving, investigating, looking up (searching, inquiring) (such as searching in a table, database, or other data structure), ascertaining, etc. as cases of performing "determining".

[0329] In addition, "determining" can also consider receiving (for example, receiving information), transmitting (for example, transmitting information), input, output, accessing (for example, accessing data in a memory), etc. as cases of performing "determining".

[0330] In addition, "determining" can also consider resolving, selecting, choosing, establishing, comparing, etc. as cases of performing "determining". That is to say, "determining" can also consider some actions as cases of performing "determining".

[0331] In addition, "determining" can also be interpreted as "assuming", "expecting", "considering", etc.

[0332] As used herein, the terms "connected" and "coupled", and all variations thereof, mean any direct or indirect connection or coupling between two or more elements, and can include the case 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 these. For example, "connected" can also be interpreted as "access".

[0333] In the present disclosure, when connecting two elements, it can be considered that one or more wires, cables, printed electrical connections, etc. are used, and electromagnetic energy having wavelengths in the wireless frequency domain, microwave region, and optical (both visible and invisible) regions is used as several non-limiting and non-exhaustive examples to "connect" or "couple" to each other.

[0334] In the present disclosure, the term "A is different from B" can also mean "A and B are different from each other". In addition, this term can also mean "A and B are respectively different from C". Terms such as "separated" and "coupled" can also be interpreted as "different" in the same way.

[0335] In the present disclosure, when using the terms "include", "including", and their variations, these terms, like the term "comprising", are meant to be inclusive. Further, the term "or" used in the present disclosure does not mean the exclusive or.

[0336] In the present disclosure, for example, in the case where articles are added by translation such as a, an, and the in English, the present disclosure can also include the case where the nouns following these articles are in the plural form.

[0337] 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 present 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 have any restrictive meaning for the invention related to the present disclosure.

Claims

1. A terminal, characterized in that, comprising: a receiving unit that receives setting information indicating whether to include an identifier of a panel in a channel state information report, i.e., a CSI report; and a transmitting unit that, when the setting information indicates that the identifier of the panel is included in the CSI report, transmits a CSI report including a signal-to-interference-plus-noise ratio, i.e., SINR, and the identifier of the panel associated with the SINR; when the setting information further includes a parameter indicating that group-based beam reporting can be performed as a radio resource control, i.e., RRC information element, the receiving unit receives a setting of the number of groups in the group-based beam report.

2. A wireless communication method, which is a wireless communication method of a terminal, characterized in that, comprising: a step of receiving setting information indicating whether to include an identifier of a panel in a channel state information report, i.e., a CSI report; when the setting information further includes a parameter indicating that group-based beam reporting can be performed as a radio resource control, i.e., RRC information element, a step of receiving a setting of the number of groups in the group-based beam report; and a step of transmitting a CSI report including a signal-to-interference-plus-noise ratio, i.e., SINR, and the identifier of the panel associated with the SINR when the setting information indicates that the identifier of the panel is included in the CSI report.

3. A base station, characterized in that, comprising: a transmitting unit that transmits setting information indicating whether to include an identifier of a panel in a channel state information report, i.e., a CSI report; and a receiving unit that, when the setting information indicates that the identifier of the panel is included in the CSI report, receives a CSI report including a signal-to-interference-plus-noise ratio, i.e., SINR, and the identifier of the panel associated with the SINR; when the setting information further includes a parameter indicating that group-based beam reporting can be performed as a radio resource control, i.e., RRC information element, the transmitting unit transmits a setting of the number of groups in the group-based beam report.

4. A system including a terminal and a base station, The terminal has: A receiving unit, which receives setting information indicating whether to include an identifier of a panel in a channel state information report, i.e., a CSI report; and A transmitting unit, when the setting information indicates that the identifier of the panel is included in the CSI report, transmits a CSI report including a signal-to-interference-plus-noise ratio, i.e., SINR, and the identifier of the panel associated with the SINR, When the setting information further includes a parameter indicating that group-based beam reporting can be performed as a radio resource control, i.e., RRC information element, the receiving unit receives a setting of the number of groups in the group-based beam reporting, The base station has: a receiving unit that receives the CSI report.

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