Terminal, wireless communication method, and base station

Abstract

A terminal according to one embodiment of the present disclosure includes: a reception unit configured to receive a setting related to a number of reported channel measurement resources (CMRs) when a group-based beam report is set; and a control unit configured to control transmission of a report of a plurality of joint reporting groups each including a plurality of CMRs based on the setting. According to one embodiment of the present disclosure, beam measurement / reporting can be appropriately performed.

Description

Technical Field

[0001] This disclosure relates to terminals, wireless communication methods, and base stations in next-generation mobile communication systems. Background Technology

[0002] In Universal Mobile Telecommunications System (UMTS) networks, Long Term Evolution (LTE) was standardized with the aim of achieving higher data rates and lower latency (Non-Patent Document 1). Furthermore, LTE-Advanced (3GPP Rel. 10-14) was standardized with the aim of further increasing capacity and advancement (higher efficiency) of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).

[0003] The successor systems to LTE are also under discussion (e.g., also known as the 5th generation mobile communication system (5G), 5G+ (plus), the 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 and later, etc.).

[0004] Existing technical documents

[0005] Non-patent literature

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

[0007] The problem that the invention aims to solve

[0008] In future wireless communication systems (e.g., Rel.20 and beyond), research is underway to enable cell-free communication using smaller units than existing cells, where terminals (user terminals, user equipment (UE)) can communicate.

[0009] However, research on beam measurement / reporting in cellless communications is insufficient. This raises concerns about reduced communication throughput in such cases.

[0010] Therefore, one of the purposes of this disclosure is to provide a terminal, wireless communication method, and base station capable of performing beam measurement / reporting appropriately.

[0011] Methods for solving problems

[0012] The terminal according to one aspect of this disclosure is characterized by having: a receiving unit that, when set to group-based beam reporting, receives a setting related to the number of reported channel measurement resources (CMRs); and a control unit that, based on the setting, controls the transmission of reports from multiple joint reporting groups, each containing multiple CMRs.

[0013] Invention Effects

[0014] According to one method of this disclosure, beam measurement / reporting can be performed appropriately. Attached Figure Description

[0015] Figure 1A as well as Figure 1B This is a diagram showing an example of RRC information elements related to CSI report settings and CSI resource settings.

[0016] Figure 2A as well as Figure 2B This is a diagram showing an example of RRC information elements associated with the NZP CSI-RS resource set and the CSI-SSB resource set.

[0017] Figure 3 This is a diagram representing an example of an RRC information element associated with a TCI status.

[0018] Figure 4 This is a diagram representing an example of the RRC information element "CSI-ReportConfig" in Rel.16.

[0019] Figure 5 This is a diagram representing an example of a CSI report in Rel.15 NR.

[0020] Figure 6This is a diagram illustrating an example of a CSI report in the case of extended group-based beamreporting.

[0021] Figure 7A as well as Figure 7B This is a diagram that provides an overview of MIMO.

[0022] Figure 8A as well as Figure 8B It is a diagram that shows an overview of a cellular system.

[0023] Figures 9A-9C This is a diagram illustrating an example of a schematic representation of a cellless structure.

[0024] Figure 10A as well as Figure 10B This is a diagram representing a CMR group and an example of CMR.

[0025] Figure 11A as well as Figure 11B This is a diagram representing a CMR group and an example of CMR.

[0026] Figure 12A as well as Figure 12B This is a diagram representing a CMR group and an example of CMR.

[0027] Figure 13A as well as Figure 13B This is a diagram representing a CMR group and an example of CMR.

[0028] Figures 14A-14C This is a diagram representing an example of a CSI report.

[0029] Figures 15A-15C This is a diagram representing an example of a CSI report.

[0030] Figure 16 This is a diagram representing a CMR group and an example of CMR.

[0031] Figure 17 This is a diagram representing a CMR group and an example of CMR.

[0032] Figure 18 This is a diagram representing a CMR group and an example of CMR.

[0033] Figure 19 This is a diagram representing a CMR group and an example of CMR.

[0034] Figure 20A as well as Figure 20B This is a diagram representing an example of a CSI report.

[0035] Figure 21This is a diagram illustrating an example of the schematic structure of a wireless communication system according to one embodiment.

[0036] Figure 22 This is a diagram illustrating an example of the structure of a base station according to one embodiment.

[0037] Figure 23 This is a diagram illustrating an example of the structure of a user terminal according to one embodiment.

[0038] Figure 24 This is a diagram illustrating an example of the hardware structure of a base station and a user terminal according to one embodiment.

[0039] Figure 25 This is a diagram illustrating an example of a vehicle according to one embodiment. Detailed Implementation

[0040] (CSI)

[0041] In NR, the UE uses a reference signal (or the resources used by the reference signal) to measure the channel state and feeds back (reports) the channel state information (CSI) to the network (e.g., the base station).

[0042] The UE may also use at least one of the following to measure the channel state: Channel State Information Reference Signal (CSI-RS), Synchronization Signal / Physical Broadcast Channel (SS / PBCH) block, Synchronization Signal (SS), DeModulation Reference Signal (DMRS).

[0043] CSI-RS resources may also include at least one of Non-Zero Power (NZP) CSI-RS resources, Zero Power (ZP) CSI-RS resources, and CSI Interference Measurement (CSI-IM) resources.

[0044] Resources used to measure signal components for CSI can also be called Signal Measurement Resources (SMRs) or Channel Measurement Resources (CMRs). SMRs (CMRs) may also include, for example, NZP CSI-RS resources, SSBs, etc., used for channel measurements.

[0045] Resources used to measure interference components for CSI can also be referred to as Interference Measurement Resources (IMRs). An IMR may, for example, include at least one of NZP CSI-RS resources, SSB, ZP CSI-RS resources, and CSI-IM resources for interference measurement.

[0046] An 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 called an SS block (SSB), etc.

[0047] Additionally, CSI may include at least one of the following: Channel Quality Indicator (CQI), Precoding Matrix Indicator (PMI), CSI-RS Resource Indicator (CRI), SS / PBCH Block Resource Indicator (SSBRI), Layer Indicator (LI), Rank Indicator (RI), L1-RSRP (Layer 1 Reference Signal Received Power), L1-RSRQ (Reference Signal Received Quality), L1-SINR (Signal to Interference plus Noise Ratio), and L1-SNR (Signal to Noise Ratio).

[0048] CSI can also have multiple parts. CSI part 1 can also contain relatively few bits of information (e.g., RI). CSI part 2 can also contain relatively many bits of information, such as information determined based on CSI part 1 (e.g., CQI).

[0049] Furthermore, CSI can be classified into several CSI types. Depending on the CSI type, the type and size of the reported information can also differ. For example, there can be a CSI type designed for communication using a single beam (also known as Type I CSI, Single-Beam CSI, etc.) and a CSI type designed for communication using multiple beams (also known as Type II CSI, Multi-Beam CSI, etc.). The uses of CSI types are not limited to these.

[0050] As a feedback method for CSI, periodic CSI (P-CSI) reports, aperiodic CSI (A-CSI) reports, and semi-persistent CSI (SP-CSI) reports are being researched.

[0051] The UE can also be notified of CSI measurement configuration information using higher-layer signaling, physical-layer signaling, or a combination thereof.

[0052] In this disclosure, higher-level signaling may also be any one or a combination of, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc.

[0053] MAC signaling can also use MAC Control Element (MAC CE) or MAC Protocol Data Unit (PDU). Broadcast information can also be Master Information Block (MIB), System Information Block (SIB), Remaining Minimum System Information (RMSI), or Other System Information (OSI).

[0054] Physical layer signaling can also be, for example, downlink control information (Downlink Control Information (DCI)).

[0055] CSI measurement settings can also be configured using the RRC information element "CSI-MeasConfig". CSI measurement settings can also include CSI resource settings (RRC information element "CSI-ResourceConfig"), CSI report settings (RRC information element "CSI-ReportConfig"), etc. CSI resource settings are associated with the resources used for CSI measurements, while CSI report settings are associated with how the UE implements CSI reporting.

[0056] Figure 1A as well as Figure 1B This is a diagram illustrating an example of an RRC information element related to CSI report settings and CSI resource settings. In this example, an excerpt of the fields (also referred to as parameters) contained within the information element is shown. Figure 1A as well as Figure 1B The ASN.1 (Abstract Syntax Notation One) notation method is used for recording. Additionally, diagrams relating to other RRC information elements (or RRC parameters) disclosed herein are also recorded using the same notation method.

[0057] like Figure 1A As shown, the CSI report configuration information (“CSI-ReportConfig”) includes resource information for channel measurement (“resourcesForChannelMeasurement”). Additionally, 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.). This resource information corresponds to the ID (Identifier) ​​of the CSI resource configuration information (“CSI-ResourceConfigId”).

[0058] In addition, the ID of the CSI resource setting information corresponding to each resource information (also known as the CSI resource setting ID) can be one or more of the same value, or they can be different values.

[0059] like Figure 1BAs 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 of the NZP CSI-RS and SSB used for measurement (“nzp-CSI-RS-SSB”) and the CSI-IM resource set list information (“csi-IM-ResourceSetList”).

[0060] The resource type indicates the time-domain behavior of the resource, which can be set to "non-periodic," "semi-persistent," or "periodic." For example, the corresponding CSI-RS can also be called A-CSI-RS, SP-CSI-RS, and P-CSI-RS, respectively.

[0061] In addition, channel measurement resources can also be used for calculations of CQI, PMI, L1-RSRP, etc. Furthermore, interference measurement resources can also be used for calculations of L1-SINR, L1-SNR, L1-RSRQ, and other interference-related metrics.

[0062] When interference measurement is performed via CSI-IM, each CSI-RS used for channel measurement can also be associated with the CSI-IM resource from a resource perspective, based on the order of CSI-RS resources and CSI-IM resources in the corresponding resource set.

[0063] "nzp-CSI-RS-SSB" can also contain NZP CSI-RS resource set list information ("nzp-CSI-RS-ResourceSetList") and SSB resource set list information for CSI measurements ("csi-SSB-ResourceSetList"). These lists can also correspond to more than one NZP CSI-RS resource set ID ("NZP-CSI-RS-ResourceSetId") and CSI-SSB resource set ID ("CSI-SSB-ResourceSetId"), which are used to identify the resources of the measurement object.

[0064] The NZP CSI-RS resource set list information (“nzp-CSI-RS-ResourceSetList”) can also include the NZP CSI-RS resource set ID (“NZP-CSI-RS-ResourceSetId”) of the maximum number of NZP CSI-RS resource sets set for each CSI resource (“maxNrofNZP-CSI-RS-ResourceSetsPerConfig”). Alternatively, the maximum number of NZP CSI-RS resource sets set for each CSI resource (“maxNrofNZP-CSI-RS-ResourceSetsPerConfig”) can be 16 if the resource type is “aperiodic”, and 1 otherwise (if the resource type is “semi-persistent” or “periodic”).

[0065] The list of SSB resource sets used for CSI measurements (“csi-SSB-ResourceSetList”) may also include CSI-SSB resource set IDs (“CSI-SSB-ResourceSetId”) representing the maximum number of SSB resource sets set for CSI measurements for each CSI resource (“maxNrofCSI-SSB-ResourceSetsPerConfig”). The maximum number of SSB resource sets set for CSI measurements for each CSI resource (“maxNrofCSI-SSB-ResourceSetsPerConfig”) may also be 1.

[0066] The CSI-IM resource set list information (“csi-IM-ResourceSetList”) may also include the CSI-IM resource set ID (“CSI-IM-ResourceSetId”) of the maximum number of CSI-IM resource sets set per CSI resource (“maxNrofCSI-IM-ResourceSetsPerConfig”). The maximum number of CSI-IM resource sets set per CSI resource (“maxNrofCSI-IM-ResourceSetsPerConfig”) may also be 16 if the resource type is “aperiodic”, and 1 otherwise.

[0067] Figure 2A as well as Figure 2B This is a diagram showing an example of RRC information elements associated with the NZP CSI-RS resource set and the CSI-SSB resource set.

[0068] For example Figure 2AAs shown, the NZP CSI-RS resource set information (“NZP-CSI-RS-ResourceSet”) includes the NZP CSI-RS resource set ID and one or more NZP CSI-RS resource IDs (“NZP-CSI-RS-ResourceId”).

[0069] The NZP CSI-RS resource information (“NZP-CSI-RS-Resource”) may also include the NZP CSI-RS resource ID and the ID of the Transmission Configuration Indication state (TCI state) (“TCI-StateId”). The TCI state will be described later.

[0070] like Figure 2B As shown, the CSI-SSB resource set information (“CSI-SSB-ResourceSet”) contains a CSI-SSB resource set ID and one or more SSB index information (“SSB-Index”). The SSB index information can be, for example, an integer greater than 0 and less than 63, and is used to identify the SSB within an SS burst.

[0071] Figure 3 This is a diagram representing an example of an RRC information element associated with a TCI status.

[0072] TCI status refers to information related to the quasi-co-location (QCL) of a channel or signal, and can also be referred to as spatial reception parameters, spatial relation information, etc. TCI status can also be set or assigned to the UE on a per-channel or per-signal basis.

[0073] like Figure 3 As shown, the TCI state information (“TCI-State”) may also include a TCI state ID and one or more QCL information (“QCL-Info”). The QCL information may also include at least one of the following: 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 may 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.

[0074] Regarding at least one of the signal and the channel (referred to as signal / channel), the UE may also control the receiving process (e.g., at least one of receiving, demapping, demodulation, decoding, receiving beam determination, etc.) and the transmitting process (e.g., at least one of transmitting, mapping, modulation, encoding, transmitting beam determination, etc.) based on the TCI state corresponding to the TCI state ID associated with the signal / channel.

[0075] like Figure 2A As shown, the associated TCI status for P-CSI-RS can also be set via RRC. Furthermore, the associated TCI status for P-CSI-RS, SP-CSI-RS, and A-CSI-RS can also be determined based on higher-layer signaling, physical-layer signaling, or a combination thereof.

[0076] (TCI, Spatial Relations, QCL)

[0077] In NR, research is underway to control the reception processing (e.g., at least one of receiving, demapping, demodulation, and decoding) and transmission processing (e.g., at least one of transmitting, mapping, precoding, modulation, and encoding) of at least one of the signals and channels (referred to as signal / channel) in the UE based on the Transmission Configuration Indication state (TCI state).

[0078] TCI states can also represent the TCI states of signals / channels applied to the downlink. The equivalent TCI states of signals / channels applied to the uplink can also be described as spatial relations.

[0079] The TCI status refers to information related to the quasi-co-location (QCL) of a signal / channel, and can also be called spatial reception parameters, spatial relation information, etc. The TCI status can also be set to the UE on a per-channel or per-signal basis.

[0080] QCL is an indicator of the statistical properties of a signal / channel. For example, it can also mean that if a signal / channel has a QCL relationship with other signals / channels, it can be assumed that at least one of the following is the same among these different signals / channels: Doppler shift, Doppler spread, average delay, delay spread, and spatial parameter (e.g., spatial Rx parameter) (QCL is related to at least one of them).

[0081] Additionally, the spatial reception parameters may also correspond to the UE's receive beam (e.g., receive analog beam), and the beam may also be determined based on the spatial QCL. The QCL (or at least one element of the QCL) in this disclosure may also be rewritten as sQCL (spatial QCL).

[0082] A QCL can also be defined by multiple types (QCL types). For example, four QCL types, or types AD, can be set, where the parameters (or parameter sets) that can be assumed to be the same in these four QCL types AD are different. These parameters (also called QCL parameters) are represented as follows: • QCL Type A (QCL-A): Doppler shift, Doppler spread, average delay, and delay spread. • QCL Type B (QCL-B): Doppler shift and Doppler extension, • QCL Type C (QCL-C): Doppler shift and average delay, • QCL Type D (QCL-D): Spatial reception parameters.

[0083] The UE envisions a relationship between a certain Control Resource Set (CORESET), channel, or reference signal and other CORESETs, channels, or reference signals in a specific QCL (e.g., QCL type D), which can also be referred to as a QCL assumption.

[0084] The UE may also determine at least one of the transmit beam (Tx beam) and receive beam (Rx beam) of the signal / channel based on the TCI state or QCL assumption of the signal / channel.

[0085] The TCI state can also be, for example, information related to the QCL between the target channel (in other words, the reference signal (RS) used by the channel) and other signals (e.g., other RSs). The TCI state can also be set (indicated) by higher-layer signaling, physical-layer signaling, or a combination thereof.

[0086] In addition, the channel / signal that becomes the application object in the TCI state can also be called the target channel / reference signal (target channel / RS), or simply target, etc. The other signals mentioned above can also be called reference RS, source RS, or simply reference, etc.

[0087] The channel that is set (specified) to TCI state or spatial relationship can be, for example, at least one of the following: downlink shared channel (Physical Downlink Shared Channel (PDSCH))), downlink control channel (Physical Downlink Control Channel (PDCCH))), uplink shared channel (Physical Uplink Shared Channel (PUSCH))), and uplink control channel (Physical Uplink Control Channel (PUCCH))).

[0088] Furthermore, the RS that is related to the channel as QCL can be at least one of the following: a Synchronization Signal Block (SSB), a Channel State Information Reference Signal (CSI-RS), a Measurement Reference Signal (Sounding Reference Signal (SRS)), a Tracking CSI-RS (also known as a Tracking Reference Signal (TRS)), a QCL Detection Reference Signal (also known as a QRS), or a DeModulation Reference Signal (DMRS).

[0089] An SSB is a block of signals that contains at least one Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and broadcast channel (Physical Broadcast Channel (PBCH)). An SSB can also be referred to as an SS / PBCH block.

[0090] The RS of QCL type X in TCI state can also refer to the RS that is in a relationship of QCL type X with a certain channel / signal (DMRS), and the RS can also be called the QCL source of QCL type X in TCI state.

[0091] (Beam management)

[0092] In Rel. 15 NR, a method for beam management (BM) was studied. In this beam management, beam selection is performed based on the L1-RSRP reported by the UE. Changing (switching) the beam of a signal / channel can also be equivalent to changing the TCI state of that signal / channel and at least one of the QCL assumptions.

[0093] 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 (transmit) measurement results for beam management. These measurement results may also be, for example, a CSI including at least one of L1-RSRP, L1-RSRQ, L1-SINR, L1-SNR, etc.

[0094] Measurement results reported for beam management (e.g., CSI) can also be referred to as beam measurement, beam measurement report, beam report, beam report CSI, etc.

[0095] CSI measurements used for beam reporting can also include interference measurements. The UE can also use the resources available for CSI measurements to measure channel quality, interference, etc., and export beam reports.

[0096] The beamforming report may also include results of at least one of the channel quality measurements and interference measurements. Channel quality measurement results may include, for example, L1-RSRP. Interference measurement results may include L1-SINR, L1-SNR, L1-RSRQ, and other interference-related metrics (e.g., any metric other than L1-RSRP).

[0097] CSI reports can also be generated based on CSI report settings configured through high-level parameters. Figure 4 This is an example of the RRC information element "CSI-ReportConfig" in Rel. 16. Figure 4 Excerpted from Figure 1A Other sections of the same CSI report configuration information (CSI-ReportConfig).

[0098] CSI report configuration information can also include information about the parameters reported through a report instance (e.g., a CSI), namely the "report quantity" (which can also be expressed as the RRC parameter "reportQuantity"). The report quantity is defined as an ASN.1 object type such as "choice". Therefore, the configuration is specified as one of the parameters of the report quantity (cri-RSRP, ssb-Index-RSRP, etc.).

[0099] For UEs where higher-level parameters (e.g., the RRC parameter "groupBasedBeamReporting" related to group-based beam reporting) in the CSI report setting information are set to invalid (disabled), the report setting may also include different beam measurement resource IDs (e.g., SSBRI, CRI) and the measurement results (e.g., L1-RSRP) corresponding to each ID, in the beam report (a report instance) containing the number of higher-level parameters (e.g., the RRC parameter "nrofReportedRS" indicating the number of RSs reported) in the CSI report setting information.

[0100] When groupBasedBeamReporting is enabled, UEs report CRI / SSBRIs in groups (e.g., a group of CRI / SSBRIs) for each report. This group contains multiple (e.g., two) CRI / SSBRIs. It can also mean that multiple (e.g., two) CRI / SSBRIs are received by the UE simultaneously.

[0101] For example, UEs with groupBasedBeamReporting enabled can configure each report to include two different beam measurement resource IDs (e.g., CRI / SSBRI) and two measurement results corresponding to each ID (e.g., L1-RSRP). These two beam measurement resources (CSI-RS resource and SSB resource) can be received simultaneously by the UE using a single spatial domain receive filter or multiple simultaneous spatial domain receive filters.

[0102] also, Figure 2A The NZP CSI-RS resource set information shown may also include information related to the repetition of resources within that resource set. This repetition-related information may, for example, indicate 'ON' or 'OFF'. Additionally, 'ON' can also be expressed as 'enabled' or 'valid', and 'OFF' can be expressed as 'disabled' or 'invalid'.

[0103] For example, regarding a resource set where repetition is set to 'ON', the UE can also assume that resources within that resource set are transmitted using the same downlink spatial domain transmission filter. In this case, the UE can also assume that resources within that resource set are transmitted using the same beam (e.g., from the same base station using the same beam).

[0104] Regarding resource sets that are repeatedly set to 'OFF', the UE can also control them as follows: it cannot be assumed (or may not assume) that resources within this resource set are transmitted using the same downlink spatial domain transmission filter. In this case, the UE can also assume that resources within this resource set are not transmitted using the same beam (but are transmitted using different beams). That is, regarding resource sets that are repeatedly set to 'OFF', the UE can also assume that the base station is performing beam scanning.

[0105] In Rel. 15 NR, the cri-RSRP and ssb-Index-RSRP in the reported quantity are associated with beam management. The cri-RSRP is set as the UE report CRI of the reported quantity and the L1-RSRP corresponding to that CRI. The ssb-Index-RSRP is set as the UE report SSBRI of the reported quantity and the L1-RSRP corresponding to that SSBRI.

[0106] Figure 5This is a diagram representing an example of a CSI report in Rel. 15 NR. Figure 5 This indicates the mapping order of CSI fields contained in a CSI report (the nth CSI report #n) for CSI / RSRP or SSBRI / RSRP reporting, as specified in Rel. 15.

[0107] Figure 5 A CSI report can contain more than one group of CSI / SSBRI and RSRP. The number of these groups can also be set by higher-level parameters (e.g., the RRC parameter "nrofReportedRS") used to indicate the number of reference signal resources for the reported object.

[0108] For L1-RSRP reports, when nrofReportedRS is set to 1 (as a value of "n1"), a field representing a specific number of bits (e.g., m bits) of the L1-RSRP of the largest measurement, namely RSRP#1, is included in the CSI report. In Rel. 15 NR, m=7.

[0109] Regarding L1-RSRP reporting, when nrofReportedRS is set to a value greater than 1, or groupBasedBeamReporting is enabled, the UE utilizes differential L1-RSRP-based reporting. Specifically, the UE includes RSRP#1 in the same CSI report (report instance) to represent the L1-RSRP of the largest measurement, and RSRP#1 for the k-th (in Figure 5 The difference RSRP#k is calculated by referring to the largest L1-RSRP (e.g., as a difference relative to that measurement) for k=2, 3, or 4. Here, the difference RSRP#k can also be a field with fewer bits (e.g., n bits) than the specific number mentioned above. In Rel. 15 NR, n=4.

[0110] For example, for each group, report 7 bits of the absolute RSRP value for the first beam (using a range of -140 to -44 dBm with a 1 dB step size) and 4 bits of the differential RSRP value for the second beam.

[0111] Additionally, when groupBasedBeamReporting is enabled, the UE includes RSRP#1 and differential RSRP#2 in the same CSI report.

[0112] Figure 5CSI / SSBRI#k is a field that represents the CSI / SSBRI corresponding to RSRP#k or differential RSRP#k (included in the case of reporting RSRP#k or differential RSRP#k).

[0113] Additionally, in NRs after Rel. 16, nrofReportedRS can be a value of 4 or higher. CSI reports can also include groups with CSI / SSBRI and RSRP values ​​of 4 or higher. The values ​​m and n mentioned above are not limited to 7 and 4, respectively.

[0114] Furthermore, L1-SINR reporting can also be performed in NR versions after Rel. 16. For L1-SINR reporting, the RSRP in the aforementioned L1-RSRP report can be rewritten as SINR. Additionally, in this case, the settings / parameters for SINR can differ from those for RSRP; for example, nrofReportedRS can be rewritten as nrofReportedRSForSINR, representing the number of reference signal resources for the SINR reporting object.

[0115] For L1-RSRP calculation, the UE can also be configured with a maximum of 64 resources per resource set and a maximum of 16 CSI-RS resource sets. The total number of different CSI-RS resources across all resource sets can also be up to 128.

[0116] For L1-SINR calculation, in channel measurements, the UE can also be configured with a CSI-RS resource setting that includes a maximum of 64 CSI-RS resources or a maximum of 64 SS / PBCH blocks and a maximum of 16 CSI-RS resource sets.

[0117] Alternatively, for a UE with a configured list of aperiodic trigger states for CSI (higher-layer parameter "CSI-AperiodicTriggerStateList"), when a resource setting associated with CSI-ReportConfig has multiple aperiodic resource sets, only one aperiodic CSI-RS resource for that resource setting is associated with the trigger state. In this case, the UE can also be configured by the higher layer to select a CSI-IM / NZP CSI-RS resource set from that resource setting for each trigger state and for each resource setting.

[0118] The UE may also disregard the following scenario: in the channel measurement resource settings of CSI-ReportConfig where the reporting quantity (higher-layer parameter reportQuantity) is set to "none", "cri-RI-CQI", "cri-RSRP", "ssb-Index-RSRP", "cri-SINR" or "ssb-Index-SINR", more than 64 NZP CSI-RS resources and SS / PBCH block resources are set.

[0119] When a UE is configured with CSI-ReportConfig, and the reporting quantity (higher-layer parameter reportQuantity) in CSI-ReportConfig is set to "cri-RSRP", "cri-SINR" or "none", and the CSI-ReportConfig is associated with a resource setting where the higher-layer parameter resourceType is set to "aperiodic", the UE may not assume the following situation: more than 16 CSI-RS resources are set in the CSI-RS resource set included in the resource setting.

[0120] When a UE is configured with CSI-ReportConfig, and the reporting quantity (higher-layer parameter reportQuantity) in the CSI-ReportConfig is set to "cri-RSRP", "cri-RI-PMI-CQI", "cri-RI-i1", "cri-RI-i1-CQI", "cri-RI-CQI", "cri-RI-LI-PMI-CQI" or "cri-SINR", and more than two resources for the corresponding resource-centralized channel measurement are set, the UE can also derive CSI parameters other than CRI based on the reported CRI. Here, CRI k (k≥0) can also correspond to: the (k+1)th configured entry of the associated nzp-CSI-RS-Resource in the corresponding NZP-CSI-RS-ResourceSet for channel measurement, the (k+1)th configured entry of the associated csi-IM-Resource in the csi-IM-ResourceSet, or the (k+1)th configured entry of the associated nzp-CSI-RS-Resource in the corresponding NZP-CSI-RS-ResourceSet for interference measurement (when reportQuantity is set to "cri-SINR" in CSI-ReportConfig). Alternatively, when two CSI-RS resources are configured, each resource can contain a maximum of 16 CSI-RS ports. Alternatively, when three or more but less than eight CSI-RS resources are configured, each resource can contain a maximum of eight CSI-RS ports.

[0121] When a UE is configured with CSI-ReportConfig, and the reporting quantity (higher-layer parameter reportQuantity) in that CSI-ReportConfig is set to "ssb-Index-RSRP", it can also report SSBRI. Here, SSBRI k (k≥0) can also correspond to the (k+1)th entry set in the associated csi-SSB-ResourceList within the corresponding CSI-SSB-ResourceSet.

[0122] When the UE is configured with CSI-ReportConfig, and the reporting quantity (higher-layer parameter reportQuantity) in that CSI-ReportConfig is set to "ssb-Index-SINR", the L1-SINR can also be derived based on the reported SSBRI. Here, SSBRI k (k≥0) can also correspond to: the (k+1)th set entry of the associated csi-SSB-ResourceList in the corresponding CSI-SSB-ResourceSet for channel measurement, the (k+1)th entry of the associated csi-IM-Resource in the csi-IM-ResourceSet, or the (k+1)th entry of the associated nzp-CSI-RS-Resource in the corresponding NZP-CSI-RS-ResourceSet for interference measurement.

[0123] (Enhanced group-based beam reporting)

[0124] For future wireless communication systems (e.g., Rel. 17 and later), extensions to beam management associations for user terminals (user equipment (UE)) with multiple panels (multi-panel) and multiple transmission / reception points (TRPs) are being investigated (e.g., beam reporting suitable for multiple TRPs, extended group-based beam reporting).

[0125] The aforementioned groupBasedBeamReporting can report a single report for a group containing multiple (e.g., 2) CRI / SSBRIs, making it suitable for applications such as multi-TRP transmission and multi-panel reception. For example, it can be used to report the best beam for TRP1 as RSRP#1 and the best beam for TRP2 as differential RSRP#2.

[0126] In Rel. 15 and 16, group-based beam reporting was configured so that each valid UE could only report one group containing two different CRI / SSBRIs (also known as beam indices). Therefore, toward Rel. 17, it is envisioned that the number of groups that can be reported via group-based beam reporting can be expanded.

[0127] For example, two resource sets used for channel measurements (e.g., CMR sets) can be configured / triggered as periodic / semi-persistent / aperiodic resource types. These two resource sets (e.g., CMR sets) can also be, for example, two CSI-SSB-resource sets / two NZP-CSI-RS resource sets. The UE can also be configured to report up to four CRI / SSBRI groups. Furthermore, the number of groups that can be reported (or, candidate numbers 1 / 2 / 3 / 4) can also be set via higher-layer parameters.

[0128] Each group can also have multiple (e.g., 2) CRI / SSBRIs, and the CRI / SSBRIs of each group can also be selected from the two CSI resource sets used in the report setting (e.g., report setting). In addition, the two CRI / SSBRIs of each group can also mean that the UE can receive simultaneously (e.g., receive simultaneously using a spatial domain receive filter).

[0129] Figure 6 This is a diagram illustrating an example of a CSI report in the case of extended group-based beam reporting. Figure 6 The diagram shows the mapping order of CSI fields included in a report (e.g., the nth CSI report #n) used for group-based CSI / RSRP or SSBRI / RSRP reporting.

[0130] A CSI report can also contain up to X (e.g., X=4) resource groups. Each group contains multiple (e.g., 2) CRI / SSBRIs. Here, we show the case where CRI or SSBRI#1 and CRI or SSBRI#2 are reported as resource groups.

[0131] The CSI field may also include a resource set indicator (e.g., Resource set indicator). The value of the resource set indicator can also indicate the channel measurement resource set from which the CRI or SSBRI#1 of the first resource group is reported. For example, a 1-bit resource set indicator with a value of 0 or 1 represents the first or second channel measurement resource set, from which the CRI or SSBRI#1 of the first resource group can also be reported. All remaining resource groups (e.g., if there are other resource groups to report) follow the same mapping order as the first resource group. For example, the CRI or SSBRI#1 of all remaining resource groups can also be reported (or selected) from the channel measurement resource set indicated by the resource set indicator.

[0132] In other words, the CRI or SSBRI#1 of each group can also be reported (or selected) from the resource set indicated by the resource set indicator (e.g., Resource setindicator), and the CRI or SSBRI#2 can be reported (or selected) from other resource sets. Thus, it is also possible to report CRI or SSBRI#1 and CRI or SSBRI#2 from different channel measurement resource sets in all resource groups.

[0133] In addition, the RSRP corresponding to the beam index (e.g., CRI or SSBRI) of each resource group is reported. For example, the RSRP of a specific group's CRI or SSBRI can also be reported, and for other RSRPs, the difference from the RSRP of a specific group's CRI or SSBRI can also be reported. The RSRP of a specific group's CRI or SSBRI can also be the RSRP of the first resource group's CRI or SSBRI#1.

[0134] Extended group-based beam reporting can also be configured (or enabled / activated) via specific high-level parameters (e.g., groupBasedBeamReporting-r17). Alternatively, extended group-based beam reporting can also be determined to be enabled by setting high-level parameters related to the number of groups being reported (e.g., nrofReportedGroups-r17).

[0135] (Event-based beam reporting)

[0136] In future wireless communication systems, research is underway to support event-based beam reporting. Event-based beam reporting can also be called event-triggered beam reporting, or it can refer to beam reporting initiated by the UE.

[0137] <Applicable Situations>

[0138] Event-based beam reporting can also be applied in at least one of the following scenarios: • [Scenario 1]: L1-RSRP / SINR beam reports containing serving cell PCI / additional PCI (e.g., L1-RSRP / SINR beam reports containing serving cell / additional PCI cells for Rel.18 L1 / L2 mobility accompanying L1 / L2 inter-cell mobility / inter-cell multi-TRP (M-TRP inter-cell) / cell handover).

[0139] • [Scenario 2]: L1-RSRP / SINR beam reports containing only the serving cell PCI.

[0140] In the event of a specific event (which may also be rewritten as meeting / not meeting specific conditions in this disclosure), the UE may also report measurement results (e.g., L1-RSRP / L1-SINR) of the NW (e.g., base station).

[0141] Specific events may also be at least one of the following: events related to at least one of the serving cell and the additional cell, and events related to beam reporting of at least one of the PCIs of the serving cell and the PCIs of the additional cell.

[0142] (Cell-Free)

[0143] In existing wireless communication systems (e.g., 5G NR), the cellular approach, which uses one antenna / transmitter / receiver point (TRP) to form one cell, is generally adopted. The area formed by this cell is fixed / static.

[0144] Furthermore, in existing wireless communication systems (e.g., Rel. 16 and later), distributed multiple input multiple output (Distributed MIMO, e.g., multi-TRP utilizing multiple TRPs) has been introduced to form communication areas using the coverage of multiple antennas / TRPs. Distributed MIMO enables simultaneous communication using multiple antennas / TRPs, as well as communication using only one antenna / TRP.

[0145] By adopting distributed MIMO, a more suitable line-of-sight environment can be built, enabling performance improvements related to MIMO.

[0146] Figure 7A and Figure 7B This is a diagram illustrating the general structure of MIMO. Figure 7A The document describes an example of co-located MIMO. In co-located MIMO, one UE communicates with one antenna / TRP.

[0147] On the other hand, Figure 7B The document describes an example of distributed MIMO. In distributed MIMO, one UE communicates with multiple coordinated antennas / TRPs.

[0148] In future wireless communication systems (e.g., Rel.20 and beyond), the introduction of cellless communication is being studied with the aim of further improving performance and reducing energy consumption. This further performance improvement is achieved through reducing interference between multiple antennas / TRPs, constructing a line-of-sight environment corresponding to the utilization of high frequencies, improving the overall frequency utilization efficiency of the system, and applying equal and high-quality communication for all users.

[0149] Cellular-free MIMO can also be referred to as cellless massive MIMO (mMIMO) or large-scale distributed MIMO (D-MIMO). Cellular-free systems utilize a large number of access points for coherent coordination. Cellular-free systems can also incorporate at least one of the following: ultra-density deployment, scalable coordination, user-centric clustering, supercarrier aggregation, and analog fronthaul. The user plane for cellless systems can also offer more flexible scheduling than existing methods. To facilitate signaling, the control plane for cellless systems can also maintain several cell-like configurations.

[0150] In cellless environments, unlike traditional cellular systems, multiple antennas / TRPs can form a single area (also known as a cell / sub-cell, etc.). That is, this area can also refer to a cell whose location is independent of the antenna / TRP.

[0151] In cell-free environments, the set of antennas / TRPs used for area formation can be changed according to the needs of the UEs. For example, the set of antennas / TRPs can be changed not based on the coverage area of ​​the antennas / TRPs, but based on the number of UEs, traffic volume, communication purpose (e.g., initial access / data communication / measurement / reporting, etc.).

[0152] In other words, in a cell-free environment, the coverage areas of multiple antennas / TRPs can also overlap.

[0153] In a cell-free environment, the direction of transmitting synchronization signals (e.g., also known as synchronization signal block (SSB), synchronization signal / physical broadcast channel (SS / PBCH) block, etc.) can also be controlled in each antenna / TRP.

[0154] Furthermore, in cell-free environments, the centralized unit (CU) / distributed unit (DU) for each antenna can also be virtualized. Alternatively, each antenna can be managed solely through the CU.

[0155] Figure 8A This is a diagram showing an overview of a cellular system. Figure 8A The diagram shows the cell formed by each antenna / TRP, and the UE communicates based on this cell.

[0156] on the other hand, Figure 8B This is a diagram representing an overview of a cellless system. Figure 8B In the example shown, the antenna / TRP configuration does not form a fixed / static cell within the cellular system. For example... Figure 8B As shown, in a cell-free system, one or more antennas / TRPs form an area corresponding to the conditions. Therefore, in a cell-free system, each antenna / TRP may not correspond to the same physical cell ID, and the areas between multiple antennas / TRPs may overlap.

[0157] Cellular non-cell functionality can also be achieved by adjusting the set of antennas / TRPs controlled by a central control unit (e.g., CU).

[0158] In cellless systems, a first cell with a fixed physical range, similar to a cell in a 5G NR system (e.g., it can also be called a cell / super cell / macro cell / large cell, etc.), and a second cell whose physical range varies quasi-statically / dynamically based on conditions (e.g., it can also be called a sub-cell / region / micro cell / cell / small cell / second cell within a first cell, etc.).

[0159] For example, to distinguish it from the second cell, the first cell can also be called a supercell. When a supercell consists of multiple second cells, the second cells can also have the same definition / operation / coverage as existing cells in the NR. For example, to distinguish it from the first cell, the second cell can also be called a subcell. When a supercell or a cell consists of multiple subcells, the subcells can also have the same definition / operation / coverage as existing cells in the NR.

[0160] The first cell can be a newly defined cell in a future wireless communication system, or it can reuse the cell definition in an existing wireless communication system.

[0161] Regarding the structure of the first and second residential areas, consider the following assumptions 1 and 2: Scenario 1: The first cell consists of multiple TRPs, each with a single cell ID (Physical Cell ID (PCI)). These multiple TRPs can coordinate their transmission and reception.

[0162] Scenario 2: The first cell consists of multiple TRPs (or sub-cells) with different cell IDs. Multiple TRPs / sub-cells can coordinate to transmit and receive.

[0163] Figure 9A This is a diagram illustrating an example of a schematic representation of a cell-free structure (Concept 1). Figure 9A In the example shown, the TRPs contained in the first cell (supercell / cell) have the same PCI (PCI#0). Multiple TRPs can coordinate communication for a single UE.

[0164] Figure 9B This is a diagram illustrating an example of a schematic representation of concept 2 for a cell-free structure. Figure 9B In the example shown, the TRPs contained in the first cell (supercell / cell) have different PCIs (PCI #0 to #9). Multiple TRPs can coordinate communication for a single UE.

[0165] Figure 9C These are diagrams illustrating other examples of a schematic representation of the cell-free structure concept 2. In Figure 9C In the example shown, PCI is allocated for each TRP contained in the first cell (supercell / cell). Figure 9C In the example shown, with Figure 9B Unlike other examples, the same PCI can also correspond to multiple TRPs. Multiple TRPs can coordinate communication for a single UE.

[0166] Transmission / reception with TRP / subcell coordination can also be based on at least one of the following methods supported in NR.

[0167] • Transmission of a single TRP / subcell accompanied by dynamic TRP / subcell handover (single TRP transmission).

[0168] • Joint transmission using multiple TRPs / subcells (multi-TRP joint transmission). This joint transmission can be based on a single DCI or multiple DCIs. It can be either incoherent joint transmission (NCJT) or coherent joint transmission (CJT).

[0169] For cell-free operation, if we envision ideal backhaul and close coordination, then in joint transmission mode, CJT can be prioritized over NCJT, and joint transmission based on a single DCI can be prioritized over joint transmission based on multiple DCIs.

[0170] In order to enable CJT / NCJT from multiple TRPs / subcells to the UE, the base station needs to identify the optimal TRP / subcell and the optimal beam for each TRP / subcell.

[0171] However, research on methods for identifying the optimal TRP / subcell and the optimal beam for each TRP / subcell is insufficient. Specifically, research on non-group-based beam reporting and group-based beam reporting is inadequate.

[0172] In the absence of sufficient research, proper communication between TRP / subcells and UEs is not possible, raising concerns about reduced communication throughput.

[0173] Therefore, the inventors of this invention have devised a method to solve the above-mentioned problems.

[0174] Hereinafter, with reference to the accompanying drawings, the embodiments involved in this disclosure will be described in detail. The wireless communication methods involved in each embodiment can be applied individually or in combination.

[0175] In this disclosure, "A / B" and "at least one of A and B" may be rewritten as each other. In addition, in this disclosure, "A / B / C" may also mean "at least one of A, B and C".

[0176] In this disclosure, terms such as notification, activation, deactivation, indication (or indication), selection, configuration, update, and determination can be overridden. Similarly, terms such as support, control, ability to control, operation, and ability to operate can also be overridden.

[0177] In this disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher-level parameters, fields, Information Elements (IE), settings, etc., can also be modified interchangeably. In this disclosure, Medium Access Control (MAC) control elements (CE), update commands, activation / deactivation commands, etc., can also be modified interchangeably.

[0178] In this disclosure, higher-layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, other messages (e.g., messages from the core network such as positioning protocol messages, such as NR Positioning Protocol A (NRPPa) / LTE Positioning Protocol (LPP) messages), or combinations thereof.

[0179] In this disclosure, MAC signaling may also use, for example, a MAC Control Element (MACCE) or a MAC Protocol Data Unit (PDU). Broadcast information may also be, for example, a Master Information Block (MIB), a System Information Block (SIB), Minimum System Information (Remaining Minimum System Information (RMSI)), or Other System Information (OSI).

[0180] In this disclosure, physical layer signaling may also be, for example, downlink control information (DCI), uplink control information (UCI), etc.

[0181] In this disclosure, indexes, identifiers (IDs), indicators, resource IDs, etc., can be interchanged. In this disclosure, sequences, lists, sets, groups, clusters, subsets, etc., can also be interchanged.

[0182] In this disclosure, SSB, CSI-RS, TRS, SRS, Reference Signal (RS), panel, UE panel, panel group, beam, beam group, precoder, uplink (UL) transmitting entity, transmission / reception point (TRP) (TRP), base station, spatial relation information (SRI) (SRI), spatial relation, SRS resource indicator (SRI) (SRI), control resource set (CORESET) (CORESET) (CORESET), physical downlink shared channel (PDSCH) ... Multiplexing (CDM) groups, reference signal groups, CORESET groups, Physical Uplink Control Channel (PUCCH) groups, PUCCH resource groups, resources (e.g., reference signal resources, SRS resources), resource sets (e.g., reference signal resource sets), CORESET pools, downlink transmission configuration indication state (TCI state) (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, quasi-co-location (QCL) and QCL concept can also be rewritten.

[0183] Furthermore, the spatial relationship information identifier (Identifier (ID)) (TCI state ID) and the spatial relationship information (TCI state) can be interchanged. "Spatial relationship information," "a set of spatial relationship information," and "one or more spatial relationship information" can also be interchanged. The TCI state and TCI can also be interchanged.

[0184] In this disclosure, the terms drop, abort, cancel, puncture, rate match, postpone, and do not send can also be rewritten interchangeably.

[0185] In this disclosure, CMR, CRI, SSBRI, beam, beam index, etc., can also be rewritten.

[0186] In this disclosure, CMR groups, TRPs, cells, sub-cells, etc., can also be rewritten.

[0187] In this disclosure, L1-RSRP, L1-SINR, L1-RSRQ, L3-RSRP (Layer 3 Reference Signal Received Power), L3-SINR (Layer 3 Signal to Interference plus Noise Ratio), L3-RSRQ (Layer 3 Reference Signal Received Quality), filtered L1 measurements, extended L1 measurements, etc., can also be rewritten to each other.

[0188] In this disclosure, the high-level parameters included in the CSI report setting information (e.g., the RRC parameter "groupBasedBeamReporting" related to group-based beam reporting) can be set to invalid (disabled), the high-level parameters included in the CSI report setting information (e.g., the RRC parameter "groupBasedBeamReporting" related to group-based beam reporting) can not be set to valid (enabled), group-based beam reporting can not be set, and non-group-based beam reporting can be set.

[0189] In this disclosure, the high-level parameters included in the CSI report setting information (e.g., the RRC parameter "groupBasedBeamReporting" related to group-based beam reporting) can be set to be enabled (enabled), or not set to be disabled (disabled), or group-based beam reporting can be set, or non-group-based beam reporting can be not set.

[0190] In this disclosure, CSI-IM resources, Non-Zero Power (NZP) Interference Measurement Resource (IMR) Interference Measurement Resource (IMR) Zero Power (ZP) Interference Measurement Resource (IMR) ZP CSI-RS resources, etc., can also be rewritten to each other.

[0191] (Wireless communication method)

[0192] <First Implementation Method>

[0193] The first implementation involves non-group-based beam reporting.

[0194] [Implementation Method 1.1]

[0195] In the case of non-group-based beam reporting, multiple groups (e.g., X CMR groups) of multiple CMRs (SSB / CSI-RS) can be configured for CSI resource settings used for channel measurements based on L1-RSRP / L1-SINR beam measurement / reporting. Each CMR group can also contain the same number of CMRs. For example, each CMR group can also contain Y CMRs (or Y CMRs can be configured per CMR group). The UE can also select / report M CMR groups, where each CMR group contains N CMRs. In other words, the UE can also select / report M×N CMRs from multiple CMRs within the M CMR groups.

[0196] The aforementioned X / Y / M / N values ​​can be set via RRC signaling or specified through a standard. Furthermore, the maximum values ​​of X / Y / M / N can be specified through a standard or reported to the base station via UE capability information.

[0197] A CMR group can also refer to a TRP / subcell. In other words, CMR groups, TRPs, and subcells can be interchanged. The base station can also configure beam measurements for multiple TRPs / subcells (X TRPs / subcells) where each TRP / subcell has multiple beams (Y beams). The UE can also select / report the optimal N beams for each of the optimal M TRPs / subcells.

[0198] Figure 10A as well as Figure 10B This is a diagram representing a CMR group and an example of CMR. In Figure 10A In this context, five CMR groups (CMR groups 1-5) are set, and the same number (here, four) of CMRs are set for each CMR group.

[0199] UE from Figure 10A Within multiple CMR groups, and within multiple CMRs, select / report one or more CMR groups and one or more CMRs. Figure 10B In the middle, UE from Figure 10A Select / report 4 CMR groups (CMR groups 1, 2, 4, 5) from the 5 CMR groups (CMR groups 1-5), and select / report one CMR from the 4 CMRs contained in each of the 4 CMR groups (CMR groups 1, 2, 4, 5) for each CMR group.

[0200] In the CMR settings, the CMR group ID can also be explicitly set. In this case, the CMR group ID can also be associated with the corresponding TRP / subcell ID.

[0201] In CMR settings, the CMR group ID may not be explicitly set. In this case, the CMR group can also be identified by the ID of the corresponding TRP / sub-cell.

[0202] CMRs contained in different CMR groups can also be sent simultaneously over the network.

[0203] According to the above-described implementation method 1.1, the UE can appropriately select / report CMR.

[0204] [Implementation Method 1.2]

[0205] In the case of non-group-based beam reporting, multiple groups (e.g., X CMR groups) of multiple CMRs (SSB / CSI-RS) can be configured for CSI resource settings used for channel measurements / reporting based on L1-RSRP / L1-SINR beam measurements / reporting. Each CMR group can also contain a different number of CMRs. The maximum number of CMRs configured in each CMR group can be specified by the specification or determined based on UE capabilities. The maximum number of CMRs configured across multiple / all CMR groups can be specified by the specification or determined based on UE capabilities. The UE can also select / report K CMRs from all configured CMR groups (in other words, across all configured CMR groups). The maximum number of CMRs reported in each CMR group can be specified by the specification, set by RRC signaling, or determined based on UE capabilities. The maximum number of CMRs reported across multiple / all CMR groups can be specified by the specification, set by RRC signaling, or determined based on UE capabilities.

[0206] The aforementioned X / K can be set via RRC signaling or specified through a standard. Furthermore, the maximum value of the aforementioned X / K can be specified through a standard or reported to the base station via UE capability information.

[0207] A CMR group can also refer to a TRP. In other words, CMR groups and TRPs can be interchanged. When the number of beams set for each TRP is different, the base station can also set only the total number of reported CMRs for the reporting settings.

[0208] Figure 11A as well as Figure 11B This is a diagram representing a CMR group and an example of CMR. In Figure 11A In this system, five CMR groups (CMR groups 1-5) are set, and more than one CMR is set for each CMR group. The number of CMRs set for each CMR group can be the same or different.

[0209] UE from Figure 11A Multiple CMR groups are set up, and more than one CMR group and more than one CMR are selected / reported from among multiple CMRs. Figure 11B In the middle, UE from Figure 11A Select / report 3 CMR groups (CMR groups 1, 2, 4) from the 5 CMR groups (CMR groups 1-5) set in the middle, and select / report a total of 4 CMRs from the multiple (here, 8) CMRs contained in the 3 CMR groups (CMR groups 1, 2, 4).

[0210] In the CMR settings, the CMR group ID can also be explicitly set. In this case, the CMR group ID can also be associated with the ID of the corresponding TRP.

[0211] In the CMR settings, the CMR group ID may not be explicitly set. In this case, the CMR group can also be identified by the ID of the corresponding TRP.

[0212] According to Implementation Method 1.2 described above, the UE can appropriately select / report CMR.

[0213] [Implementation Method 1.3A]

[0214] In the case of non-group-based beam reporting, multiple groups (e.g., X CMR groups) of multiple CMRs (SSB / CSI-RS) can be configured for CSI resource settings used for channel measurements / reporting based on L1-RSRP / L1-SINR beam measurements / reporting. Each CMR group can also contain the same number of CMRs. For example, Y CMRs can be configured per CMR group (each CMR group can also contain Y CMRs). The UE can also select / report K CMRs from all configured CMR groups (in other words, across all configured CMR groups). The maximum number of CMRs reported per CMR group can be specified by the specification, set by RRC signaling, or determined based on the UE's capabilities. The maximum number of CMRs reported across multiple / all CMR groups (the maximum value of K) can be specified by the specification, set by RRC signaling, or determined based on the UE's capabilities.

[0215] The aforementioned X / Y / K values ​​can be set via RRC signaling or specified through a standard. Furthermore, the maximum values ​​of X / Y / K can be specified through a standard or reported to the base station via UE capability information.

[0216] Figure 12A as well as Figure 12B This is a diagram representing a CMR group and an example of CMR. In Figure 12A In this context, five CMR groups (CMR groups 1-5) are set, and the same number (here, four) of CMRs are set for each CMR group.

[0217] UE from Figure 12A Multiple CMR groups are set up, and more than one CMR group and more than one CMR are selected / reported from among multiple CMRs. Figure 12B In the middle, UE from Figure 12A Select / report 3 CMR groups (CMR groups 1, 2, 4) from the 5 CMR groups (CMR groups 1-5) set in the middle, and select / report a total of 4 CMRs from the multiple (here, 12) CMRs contained in the 3 CMR groups (CMR groups 1, 2, 4).

[0218] According to the above-described implementation method 1.3A, the UE can appropriately select / report CMR.

[0219] [Implementation Method 1.3B]

[0220] In the case of non-group-based beam reporting, multiple groups (e.g., X CMR groups) of multiple CMRs (SSB / CSI-RS) can be configured for CSI resource settings used for channel measurements / reporting based on L1-RSRP / L1-SINR beam measurements / reporting. Each CMR group can also contain a different number of CMRs. The UE can also select / report M CMR groups, each containing N CMRs. In other words, the UE can also select / report M×N CMRs from multiple CMRs within the M CMR groups. The maximum number of CMRs (N) configured in each CMR group can be specified by the specification or determined based on the UE's capabilities. The maximum number of CMRs (M×N) configured across multiple / all CMR groups can be specified by the specification or determined based on the UE's capabilities. N can also be less than the number of CMRs configured in the CMR group with the fewest configured CMRs among the configured CMR groups.

[0221] The aforementioned X / M / N can be set via RRC signaling or specified through a standard. Furthermore, the maximum value of the aforementioned X / M / N can be specified through a standard or reported to the base station via UE capability information.

[0222] Figure 13A as well as Figure 13B This is a diagram representing a CMR group and an example of CMR. In Figure 13A In this system, five CMR groups (CMR groups 1-5) are set, and more than one CMR is set for each CMR group. The number of CMRs set for each CMR group can be the same or different.

[0223] UE from Figure 13A Multiple CMR groups are set up, and more than one CMR group and more than one CMR are selected / reported from among multiple CMRs. Figure 13B In the middle, UE from Figure 13A Select / report 4 CMR groups (CMR groups 1, 2, 4, 5) from the 5 CMR groups (CMR groups 1-5) set in the middle, and select / report one CMR from each CMR group from the multiple (here, 10) CMRs contained in the 4 CMR groups (CMR groups 1, 2, 4, 5).

[0224] According to the above-described implementation method 1.3B, the UE can appropriately select / report CMR.

[0225] [Implementation Method 1.4]

[0226] You can also set restrictions on at least one of the configured CMRs for each CMR group (in other words, within the same CMR group) and the configured CMRs for different CMR groups. These restrictions may also depend on at least one of the UE capability reports and network settings.

[0227] You can also set a limitation related to the type / category of the reference signal. This limitation can be either Option 1 or Option 2 below.

[0228] Option 1: The reference signal type is the same for multiple CMRs in all CMR groups.

[0229] Option 2: The reference signals used for multiple CMRs in one CMR group are of the same type; the reference signals used for multiple CMRs in different CMR groups are of the same type or different types.

[0230] Regarding option 1, for example, in a reporting setting, as a reference signal for multiple CMRs in all CMR groups, either SSB or CSI-RS can be used alone.

[0231] Regarding option 2, for example, as a reference signal for multiple CMRs in the first CMR group, only one of SSB or CSI-RS may be used. In this case, as a reference signal for multiple CMRs in the second CMR group, only one of SSB or CSI-RS may be used.

[0232] You can also set restrictions related to the Physical Cell ID (Physical Cell Identifier (PCI)). This restriction can also be at least one of the following options 1 to 3.

[0233] Option 1: Associate multiple CMRs within a CMR group with the same PCI.

[0234] Option 2: In the case of intra-cell, multiple CMRs from different CMR groups are associated with the same PCI.

[0235] Option 3: In the case of inter-cell, multiple CMRs from different CMR groups are associated with the same or different PCIs.

[0236] Restrictions related to the QCL source RS can also be set. When multiple CSI-RS are set as multiple CMRs, the QCL source RSs of multiple CMRs within a CMR group can also be restricted to the same SSB.

[0237] You can also set restrictions related to Timing Advance (TA) / Timing Advance Group (TAG). This restriction can be either Option 1 or Option 2 below.

[0238] Option 1: Multiple CMRs within a CMR group (or multiple TCI states associated with multiple CMRs within a CMR group) are associated with the same TA / TAG. Multiple CMRs from different CMR groups (or multiple TCI states associated with multiple CMRs from different CMR groups) are associated with different TA / TAGs.

[0239] Option 2: Associate all CMRs (or multiple TCI states associated with multiple CMRs within different CMR groups) with the same TA / TAG.

[0240] You can also set a limit related to the offset value of TA (e.g., n-TimingAdvanceOffset). This limit can also be at least one of the following options 1 through 3.

[0241] Option 1: A TA offset value is set for each CMR group. In this case, the TA offset value can be the same or different across multiple CMR groups.

[0242] Option 2: An offset value for the TA is set for all CMR groups. In this case, the TA offset value is the same / common across all CMR groups.

[0243] Option 3: In the case of inter-cell, an offset value for a TA is set for each PCI and / or each TAG.

[0244] You can also set a limit related to DL reference timing. This limit can also be at least one of the following options 1 to 3.

[0245] Option 1: One DL reference timing is set / supported for each CMR group. In this case, the DL reference timing can be the same or different across multiple CMR groups.

[0246] Option 2: A DL reference timing is set / supported for all CMR groups. In this case, the DL reference timing is the same / common across all CMR groups.

[0247] Option 3: In the case of inter-cell, a DL reference timing is set / supported for each PCI and / or each TAG.

[0248] Limitations related to the DL path loss reference signal (PL-RS) can also be set. The UE may also not expect to be configured with more than one SSB / CSI-RS as the PL-RS from a CMR group.

[0249] Limitations related to the DL Radio Link Monitoring Reference Signal (RLM-RS) can also be set. The UE may also not expect to be configured with more than one SSB / CSI-RS from a CMR group as the RLM-RS.

[0250] Limitations can also be set related to the Beam Failure Detection Reference Signal (BFD-RS). The UE may also not expect more than one SSB / CSI-RS to be set as BFD-RS from a CMR group.

[0251] [Implementation Method 1.5]

[0252] When L1-SINR is set as the report quantity, ZP-IMR can also be set to at least one of the following options 1-1 to 1-3.

[0253] Option 1-1: ZP-IMR and CMR are mapped one-to-one.

[0254] • Option 1-2: A publicly set ZP-IMR is set for all CMRs.

[0255] • Options 1-3: A publicly configured ZP-IMR is set for each CMR group.

[0256] In option 1-1 above, a ZP-IMR can also be set for each CMR.

[0257] In options 1-3 above, it is also possible to apply a commonly set ZP-IMR to multiple CMRs within a CMR group, and to apply the same / different ZP-IMR to multiple CMRs within different CMR groups respectively.

[0258] Whether L1-SINR measurement / reporting is supported, and whether the above options 1-1 / 1-2 / 1-3 are supported, may also depend on at least one of the UE capabilities and network-based settings.

[0259] When L1-SINR is set as the report quantity, NZP-IMR can also be set to at least one of the following options 2-1 to 2-3.

[0260] Option 2-1: NZP-IMR and CMR, or NZP-IMR and ZP-IMR are mapped one-to-one.

[0261] Option 2-2: A publicly set NZP-IMR is set for all CMRs, or it is set between NZP-IMR and ZP-IMR.

[0262] • Option 2-3: A publicly configured NZP-IMR is set for each CMR group.

[0263] In option 2-1 above, an NZP-IMR can also be set for each CMR.

[0264] In options 2-3 above, it is also possible to apply a commonly set NZP-IMR to multiple CMRs within a CMR group, and to apply the same / different NZP-IMR to multiple CMRs within different CMR groups.

[0265] Whether the setting of NZP-IMR for L1-SINR is supported, and whether the above options 2-1 / 2-2 / 2-3 are supported, may also depend on at least one of the UE capabilities and network-based settings.

[0266] [Implementation Method 1.6]

[0267] The UE may also report at least one of the following in a CSI report to the base station: beam index (CRI / SSBRI) indication, CMR group ID indication, and L1-RSRP / L1-SINR value for each beam. The CSI report may also be generated following either option 1-1 or 1-2.

[0268] [Option 1-1]

[0269] All CMRs across all CMR groups can also be indexed. A beam index corresponding to a CMR can also be represented using the ceil(log2(MAX_allgroup)) bits. In this disclosure, MAX_allgroup can also refer to the total number of CMRs across the CMR group. In this disclosure, ceil(A) can also refer to the ceiling function of A. In this disclosure, log2(B), ceil(log2(B)), etc., can also be rewritten interchangeably. ceil(log2(MAX_allgroup)) means: the number of bits for a beam index corresponding to a CMR when all CMRs are indexed across all CMR groups.

[0270] The UE can also use all beam indices corresponding to all selected / reported CMRs to generate a CSI report.

[0271] For example, in implementations 1.1 and 1.3B, the UE may also use M×N×ceil(log2(MAX_allgroup)) bits to report the M×N beam indices corresponding to the M×N CMRs.

[0272] For example, in implementations 1.2 and 1.3A, the UE may also use K×ceil(log2(MAX_allgroup)) bits to report the K beam indices corresponding to the K CMRs.

[0273] Figure 14A This is a diagram representing an example of a CSI report generated following option 1-1. Figure 14A This shows a mapping of CSI fields included in a CSI report used for CRI / RSRP or SSBRI / RSRP reporting. A CSI field may also contain a beam index (CRI / SSBRI) corresponding to a selected / reported CMR. CSI reports may also contain beam indices corresponding to CMRs from #1 to #M×N or #K.

[0274] [Options 1-2]

[0275] The CMRs assigned to each CMR group can also be indexed. A beam index corresponding to a CMR within a CMR group can also be represented using the ceil(log2(MAX_pergroup)) bit. In this disclosure, MAX_pergroup can also refer to the number of CMRs within a CMR group. A CMR group ID can also be represented using the ceil(log2(total number of CMR groups)) bit. In this case, a CSI report can be generated following options 1-2A or 1-2B.

[0276] The UE can also use the beam index corresponding to the selected / reported CMR and the CMR group ID containing that CMR to generate a CSI report for each CMR group (option 1-2A).

[0277] Figure 14B This is a diagram illustrating an example of a CSI report generated following options 1-2A. Figure 14B This diagram illustrates the mapping of CSI fields included in a CSI report used for CRI / RSRP or SSBRI / RSRP reporting. A CSI field may also contain a CMR group ID or a beam index (CRI / SSBRI) corresponding to a CMR. A CSI report may also contain more than one set of CSI fields (e.g., CSI field sets #A1, #A2). A CSI field set may also contain a CMR group ID and beam indices corresponding to more than one CMR within that CMR group. A CSI field set may also correspond to a selected / reported CMR group. The number of CSI field sets may also be the same as the number of selected / reported CMR groups.

[0278] The UE can also use the beam index corresponding to the selected / reported CMR and the ID of the CMR group containing that CMR to generate a CSI report for each beam index and each CMR group (options 1-2B).

[0279] Figure 14C This is a diagram illustrating an example of a CSI report generated following options 1-2B. Figure 14CThis diagram illustrates the mapping of CSI fields included in a CSI report used for CRI / RSRP or SSBRI / RSRP reporting. A CSI field may also contain the ID of a CMR group or a beam index (CRI / SSBRI) corresponding to a CMR. A CSI report may also contain more than one set of CSI fields (e.g., CSI field sets #B1, #B2, ...). A set of CSI fields may also contain the ID of a CMR group and a beam index corresponding to a CMR within that CMR group. A set of CSI fields may correspond to a selected / reported CMR within a selected / reported CMR group, a selected / reported CMR, or a selected / reported CMR group. The number of CSI field sets may also be the same as the number of selected / reported CMRs.

[0280] For quantization of the L1-RSRP / L1-SINR values ​​for each beam, options 2-A or 2-B can also be used. In this disclosure, terms such as strong, larger, higher, and good can be rewritten interchangeably. Similarly, terms such as strongest, largest, highest, and best can also be rewritten interchangeably.

[0281] [Option 2-A]

[0282] Alternatively, among all measurements (L1-RSRP / L1-SINR values) for all CMR groups, the strongest value is quantized with 7 bits (or other bit sizes with high quantization resolution), and the remaining values ​​are differentially quantized with 4 bits (or other bit sizes with low quantization resolution).

[0283] In the CSI report, the beam with the highest L1-RSRP / L1-SINR value among all CMRs can also be mapped / configured before other beams.

[0284] [Option 2-B]

[0285] Alternatively, among all the measurements (L1-RSRP / L1-SINR values) for a CMR group, the strongest value is quantized with 7 bits (or another bit size with high quantization resolution), and the remaining values ​​in the CMR group are differentially quantized with 4 bits (or another bit size with low quantization resolution).

[0286] In the CSI report, the beam with the largest L1-RSRP / L1-SINR value in the CMR of each CMR group can also be mapped / configured in front of other beams included in the same CMR group.

[0287] In the CSI report, the L1-RSRP / L1-SINR values ​​can also be mapped / configured after the corresponding beam index. In this case, any of the following options 3-A to 3-C can also be used.

[0288] [Option 3-A]

[0289] like Figure 15A As shown, the L1-RSRP / L1-SINR value for each beam can also be mapped / configured immediately following the corresponding beam index.

[0290] [Option 3-B]

[0291] like Figure 15B As shown, the L1-RSRP / L1-SINR values ​​for the beams of each CMR group can also be mapped / configured after the beam index of each CMR group.

[0292] [Option 3-C]

[0293] like Figure 15C As shown, the L1-RSRP / L1-SINR values ​​for all beams can also be mapped / configured after all beam indices.

[0294] According to Implementation Method 1.6 described above, the size and mapping of the CSI report can be appropriately determined.

[0295] [change]

[0296] At least one of the following can be set without the network: the number of CMR groups (M), the number of CMRs in each CMR group (N), and the number of CMRs across CMR groups (K). In other words, the UE can also determine at least one of M, N, and K.

[0297] At least one of the following can be set via the network: the maximum number of CMR groups (M'), the maximum number of CMRs in each CMR group (N'), and the maximum number of CMRs across CMR groups (K'). The UE can also determine at least one of the following: M satisfying M≤M', N satisfying N≤N', and K satisfying K≤K'.

[0298] The size of the CSI report can also be variable. To ensure that the network and UE have common knowledge of the CSI report's content, the following extensions can be made: • Supports two-part CSI reports. The first part (CSI part 1) has a fixed size, while the second part (CSI part 2) provides an explanation and size.

[0299] For example, in the first part, the UE may also use the ceil(log2(MAX_allgroup)) bit or the ceil(log2(K')) bit to report the number of beams being reported. The size and content of the second part can also be determined based on the first part. In the second part, the UE may also follow implementation method 1.6 to report at least one of the following: beam index (CRI / SSBRI) indication, CMR group ID indication, and the L1-RSRP / L1-SINR value for each beam.

[0300] For example, in the first part, the UE may also use the ceil(log2(number of CMR groups)) bit or the ceil(log2(M')) bit to report the number of CMR groups. In the first part, the UE may also use the ceil(log2(number of CMRs per CMR group)) bit or the ceil(log2(N')) bit to report the number of CMRs per CMR group. The size and content of the second part can also be determined based on the first part. In the second part, the UE may also follow implementation method 1.6 to report at least one of the beam index (CRI / SSBRI) indication, CMR group ID indication, and the L1-RSRP / L1-SINR value for each beam.

[0301] Alternatively, based on RRC settings, MAC CE can activate, indicate, or update at least one of the following:

[0302] • One or more CMR groups used for beam measurement; • One or more PCIs in one or more CMR groups used for beam measurement; • Number of CMR groups selected / reported (M) / Number of CMRs selected / reported per CMR group (N) / Number of CMRs selected / reported across CMR groups (K); • ZP-IMR / NZP-IMR settings; • One or more limitations as described in Implementation Method 1.4.

[0303] The aforementioned MAC CE may also include CMR group ID / TRP ID / sub-cell ID.

[0304] When event-based beam reporting / updates are configured, multiple beams reported by the UE (or multiple beams associated with multiple TCI states) can also be applied to multiple channels / RS of the corresponding DL / UL that are set or defined and associated with the corresponding CMR group.

[0305] To support the above applications, a limit of reporting a maximum of one beam per CMR group can also be set. Alternatively, in the case of reporting multiple beams per group, specific rules can be used to select the beam to be applied to the channel / RS for the corresponding CMR group. This rule could, for example, be to use the initial beam among the multiple beams or to use a beam with a lower / higher ID.

[0306] For each TRP / CMR group, the RLM-RS / BFD-RS / PL-RS can also be updated to the reporting beam for the corresponding CMR group.

[0307] According to the first embodiment described above, non-group-based beam reporting can be appropriately controlled.

[0308] <Second Implementation Method>

[0309] The second implementation involves group-based beam reporting.

[0310] [Implementation Method 2.1]

[0311] In cases where multiple groups of multiple CMRs (SSB / CSI-RS) are configured (e.g., X CMR groups), group-based beam reporting can also be supported / configured. Each CMR group can contain the same number of CMRs (e.g., Y CMRs) or a different number of CMRs. The UE can also select / report P joint reporting groups.

[0312] Each joint reporting group may also contain multiple CMR groups, with each of these multiple CMR groups containing Q CMRs (Q satisfying Q≤X).

[0313] Within each joint reporting group, the maximum number of CMRs selected / reported from a single CMR group can also be one.

[0314] The UE can also receive CMRs within a single joint reporting group simultaneously. The network can also transmit CMRs from different CMR groups simultaneously (the network can also transmit RSs simultaneously from multiple CMRs contained in multiple CMR groups).

[0315] The aforementioned X / Y / P / Q values ​​can be set via RRC signaling or specified through a standard. Furthermore, the maximum values ​​of X / Y / P / Q can be specified through a standard or reported to the base station via UE capability information.

[0316] The UE can also report information indicating its ability to support group-based beam reporting for multiple CMR groups.

[0317] In the CMR settings, the CMR group ID can also be explicitly set. In this case, the CMR group ID can also be associated with the corresponding TRP / subcell ID.

[0318] In CMR settings, the CMR group ID may not be explicitly set. In this case, the CMR group can also be identified by the ID of the corresponding TRP / sub-cell.

[0319] As a limitation in the CMR settings, you can also set either option 1 or option 2: Option 1: A CMR can also be selected / reported only in one joint reporting group. In other words, the same CMR may not be selected / reported across different joint reporting groups.

[0320] Option 2: The same CMR can also be selected / reported between different joint reporting groups.

[0321] Figure 16 This is a diagram representing a CMR group and an example of CMR. In Figure 16 In this context, five CMR groups (CMR groups 1-5) are set, and the same number (here, four) of CMRs are set for each CMR group.

[0322] Figure 17 This is a diagram illustrating an example of the CMR group and CMR reported by the UE in option 1 above. Figure 17 The UE reports two joint reporting groups. Each joint reporting group includes reports from... Figure 16The UE selects three CMR groups from the five CMR groups (CMR groups 1-5). From each of the four CMRs configured in the three CMR groups of the first joint reporting group (e.g., joint reporting group #1), the UE selects / reports one CMR per CMR group. Furthermore, from each of the four CMRs configured in the three CMR groups of the second joint reporting group (e.g., joint reporting group #2), the UE selects / reports one CMR per CMR group. Figure 17 In this context, the CMR within the first joint reporting group (e.g., joint reporting group #1) differs from the CMR within the second joint reporting group (e.g., joint reporting group #2).

[0323] Figure 18 This is a diagram illustrating an example of the CMR group and CMR reported by the UE in option 2 above. Figure 18 The UE reports two joint reporting groups. Each joint reporting group includes reports from... Figure 16 The UE selects three CMR groups from the five CMR groups (CMR groups 1-5). From each of the four CMRs configured in the three CMR groups of the first joint reporting group (e.g., joint reporting group #1), the UE selects / reports one CMR per CMR group. Furthermore, from each of the four CMRs configured in the three CMR groups of the second joint reporting group (e.g., joint reporting group #2), the UE selects / reports one CMR per CMR group. Figure 18 In this context, the first joint reporting group (e.g., joint reporting group #1) and the second joint reporting group (e.g., joint reporting group #2) contain common CMRs (e.g., CMRs within CMR group #1).

[0324] According to Implementation Method 2.1 described above, the UE can appropriately select / report CMR.

[0325] [Implementation Method 2.2]

[0326] In cases where multiple groups of multiple CMRs (SSB / CSI-RS) are configured (e.g., X CMR groups), group-based beam reporting can also be supported / configured. Each CMR group can contain the same number of CMRs (e.g., Y CMRs) or a different number of CMRs. The UE can also select / report P1 (first joint reporting group), P2 (second joint reporting group), P3 (third joint reporting group), etc.

[0327] The number of CMRs selected / reported can also be determined per joint reporting group. For example, the number of CMRs in one first joint reporting group can be Q1, the number of CMRs in one second joint reporting group can be Q2, and the number of CMRs in one third joint reporting group can be Q3.

[0328] Within each joint reporting group, the maximum number of CMRs that can be selected / reported from one CMR group is one.

[0329] The UE can also receive CMRs within one joint reporting group simultaneously. The network can also transmit CMRs from different CMR groups simultaneously.

[0330] The aforementioned X / Y / P1 / Q1 / P2 / Q2 / P3 / Q3 can be set via RRC signaling or specified through a standard. Furthermore, the maximum values ​​of the aforementioned X / Y / P1 / Q1 / P2 / Q2 / P3 / Q3 can be specified through a standard or reported to the base station via UE capability information.

[0331] As a limitation in the CMR settings, you can also set either option 1 or option 2: Option 1: A CMR may also be selected / reported in only one joint reporting group (in other words, the same CMR may not be selected / reported between different joint reporting groups).

[0332] Option 2: The same CMR can also be selected / reported between different joint reporting groups.

[0333] Figure 19 This is a diagram showing an example of the CMR groups and CMRs reported by the UE. Figure 19 In this case, P1=1, P2=1, and P3=1. That is, in Figure 19 In this report, the UE submits one first joint reporting group, one second joint reporting group, and one third joint reporting group. Furthermore, in... Figure 19 In this context, Q1=1, Q2=2, and Q3=3. That is, the UE selects / reports 1 CMR from the first joint reporting group (e.g., joint reporting group #1), 2 CMRs from the second joint reporting group (e.g., joint reporting group #2), and 3 CMRs from the third joint reporting group (e.g., joint reporting group #3). Figure 19 As shown, the CMRs within each joint reporting group can be different (e.g., joint reporting groups #1 and #2) or can include common CMRs (e.g., joint reporting groups #1 and #3).

[0334] According to Implementation 2.2 described above, the UE can appropriately select / report CMR.

[0335] [Implementation Method 2.3]

[0336] Similar to implementation 1.4, restrictions may also be set for at least one of the following: the set CMR for each CMR group, and the CMR for different CMR groups.

[0337] When L1-SINR is set to the report quantity, ZP-IMR can also be set in the same way as in implementation method 1.5.

[0338] When L1-SINR is set to the report quantity, NZP-IMR can also be set in the same way as in implementation method 1.5.

[0339] [Implementation Method 2.4]

[0340] In a CSI report, the UE may also report to the base station at least one of the following: beam index (CRI / SSBRI) indication, CMR group ID indication, and L1-RSRP / L1-SINR value for each beam.

[0341] The entire CMR group can be indexed. Alternatively, a beam index corresponding to a CMR can be represented using ceil(log2(MAX_allgroup)) bits. ceil(log2(MAX_allgroup)) refers to the number of bits for a beam index corresponding to a CMR when all CMRs are indexed across the entire CMR group.

[0342] In implementation 2.1, for each joint reporting group, the ID of the joint reporting group with ceil(log2(P)) bits can be reported either explicitly or not.

[0343] In implementation 2.2, for each joint reporting group, the ID of the joint reporting group with ceil(log2(P1+P2+P3+…)) bits can be reported either explicitly or not.

[0344] In the absence of a joint reporting group ID being reported, rules / constraints / priorities related to the order of beams in each joint reporting group can be defined to enable common identification between the UE and the base station of which beams belong to the same joint reporting group.

[0345] The UE can also use all beam indices corresponding to all selected / reported CMRs to generate a CSI report.

[0346] Figure 20A as well as Figure 20B This is a diagram representing an example of a CSI report. Figure 20A This diagram illustrates the mapping of CSI fields contained in a CSI report used for CRI / RSRP or SSBRI / RSRP reporting. A CSI field may also contain the ID of a joint reporting group or a beam index (CRI / SSBRI) corresponding to a CMR. A CSI report may also contain more than one set of CSI fields (e.g., CSI field sets #A1, #A2). A CSI field set may also contain the ID of a joint reporting group and beam indices corresponding to more than one CMR within that joint reporting group. A CSI field set may also correspond to a selected / reported joint reporting group. For example, CSI field sets #A1 and #A2 may correspond to joint reporting groups #1 and #2 in Implementation 2.1, respectively. The number of CSI field sets may also be the same as the number of selected / reported joint reporting groups. Figure 20A As shown, when the number of CMRs in each joint reporting group is the same (in the case of implementation 2.1), the number of beam indices in each CSI field set is the same.

[0347] Figure 20B This diagram illustrates the mapping of CSI fields included in a CSI report used for CRI / RSRP or SSBRI / RSRP reporting. A CSI field may also contain the ID of a joint reporting group or a beam index (CRI / SSBRI) corresponding to a CMR. A CSI report may also contain more than one set of CSI fields (e.g., CSI field sets #B1, #B2, #B3). A CSI field set may also contain the ID of a joint reporting group and beam indices corresponding to more than one CMR within that joint reporting group. A CSI field set may also correspond to a selected / reported joint reporting group. For example, CSI field sets #B1, #B2, and #B3 may also correspond to joint reporting groups #1, #2, and #3 in Implementation 2.2, respectively. The number of CSI field sets may also be the same as the number of selected / reported joint reporting groups. Figure 20B As shown, the number of beam indices for each CSI field set differs when the number of CMRs in each joint reporting group is different (in the case of implementation 2.2).

[0348] A CSI field can also represent the L1-RSRP / L1-SINR value used for beaming.

[0349] Similar to implementation 1.6, the L1-RSRP / L1-SINR value for each beam can also be mapped / configured immediately after the corresponding beam index.

[0350] Similar to implementation 1.6, the L1-RSRP / L1-SINR values ​​for the beams used in each joint reporting group can also be mapped / configured after the beam index of each joint reporting group.

[0351] Similar to implementation 1.6, the L1-RSRP / L1-SINR values ​​for all beams can also be mapped / configured after the all beam index.

[0352] For quantization of the L1-RSRP / L1-SINR value for each beam, options A or B can also be used.

[0353] [Option A]

[0354] Alternatively, among all measurements (L1-RSRP / L1-SINR values) for all beams, the strongest value is quantized with 7 bits (or other bit sizes with high quantization resolution), and the remaining values ​​are differentially quantized with 4 bits (or other bit sizes with low quantization resolution).

[0355] In the CSI report, the beam with the highest L1-RSRP / L1-SINR value among all CMRs, as well as the ID of the joint reporting group, can also be mapped / configured before other beams.

[0356] [Option B]

[0357] Alternatively, among all the measurements (L1-RSRP / L1-SINR values) for a joint reporting group, the strongest value is quantized with 7 bits (or another bit size with high quantization resolution), and the remaining values ​​within the joint reporting group are differentially quantized with 4 bits (or another bit size with low quantization resolution) per joint reporting group.

[0358] In CSI reports, the beam with the largest L1-RSRP / L1-SINR value in the CMR of each joint reporting group can also be mapped / configured before other beams included in the same joint reporting group.

[0359] The UE can also support the setting of periodic / aperiodic / semi-persistent beam reporting in UCI, or the setting of event-triggered beam reporting via MAC CE.

[0360] [change]

[0361] At least one of the following can be set without being configured via the network: the number of joint reporting groups (P, P1, P2, P3, ...) and the number of CMRs (Q, Q1, Q2, Q3, ...) for each joint reporting group. In other words, the UE can also determine at least one of P, P1, P2, P3, ... and Q, Q1, Q2, Q3, ...

[0362] At least one of the maximum number of joint reporting groups (P', P1', P2', P3', ...) and the maximum number of CMRs for each joint reporting group (Q', Q1', Q2', Q3', ...) can also be set via the network. The UE can also determine at least one of the following: the number of joint reporting groups below the set maximum number of joint reporting groups, and the number of CMRs for each joint reporting group below the set maximum number of CMRs for each joint reporting group.

[0363] The size of the CSI report can also be variable. To ensure that the network and UE have a common understanding of the CSI report's content, the following extensions can also be made: • Supports two-part CSI reports. The first part (CSI part 1) has a fixed size, while the second part (CSI part 2) provides an explanation and size.

[0364] For example, in the first part, the UE may also use the ceil(log2(P')) bit to report the number of joint reporting groups. In the first part, the UE may also use the ceil(log2(number of CMR groups)) bit or the ceil(log2(Q')) bit to report the common number of CMRs for each joint reporting group.

[0365] For example, in the first part, the UE may also use the ceil(log2(P')) bit to report the number of joint reporting groups. In the first part, the UE may also use the P×ceil(log2(number of CMR groups)) bit or the P×ceil(log2(Q')) bit to report different numbers of CMRs for each joint reporting group.

[0366] Alternatively, based on RRC settings, MAC CE can be activated, indicated, or updated at least one of the following:

[0367] • One or more CMR groups used for beam measurement; • One or more PCIs in one or more CMR groups used for beam measurement; • Number of joint reporting groups (P, P1, P2, P3, ...) / Number of joint reporting groups selected / Number of CMRs reported (Q, Q1, Q2, Q3, ...); • ZP-IMR / NZP-IMR settings; • One or more limitations as described in Implementation Method 1.4.

[0368] The aforementioned MAC CE may also include CMR group ID / TRP ID / sub-cell ID.

[0369] When event-based beam reporting / updates are configured, multiple beams reported by the UE (or multiple beams associated with multiple TCI states) can also be applied to multiple channels / RS of the corresponding DL / UL that are configured or defined and associated with the corresponding CMR group.

[0370] To support the above applications, a limit of reporting only one joint reporting group can also be set. Alternatively, in the case of reporting multiple joint reporting groups, specific rules can be used to select the beam applied to the corresponding CMR group's channel / RS. This rule can, for example, use either the initial joint reporting group among the multiple joint reporting groups or the joint reporting group with the fewest / most beams.

[0371] For each TRP / CMR group, the RLM-RS / BFD-RS / PL-RS can also be updated to the reporting beam for the corresponding CMR group.

[0372] According to the second embodiment described above, group-based beam reporting can be appropriately controlled.

[0373] <Supplement>

[0374] [Information notification to UE]

[0375] In the above embodiments, any information (notification from the Network (NW) (e.g., Base Station (BS)) to the UE) (in other words, the reception of any information from the BS in the UE) can also be delivered using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels (e.g., PDCCH, PDSCH, reference signals), or combinations thereof.

[0376] In the case where the above notification is made via MAC CE, the MAC CE can also be identified by including a new Logical Channel ID (LCID) that is not specified in the existing standard in the MAC subheader.

[0377] When the above notification is made through a DCI, the notification can also be made through specific fields of the DCI, the Radio Network Temporary Identifier (RNTI) used in the scrambling of the Cyclic Redundancy Check (CRC) bits assigned to the DCI, the format of the DCI, etc.

[0378] Furthermore, the notification of any information to the UE in the above embodiments can also be carried out periodically, semi-persistently, or non-periodically.

[0379] [Notification from UE]

[0380] The notification of any information from the UE (to the NW) in the above embodiments (in other words, the transmission / reporting of any information from the UE to the BS) can also be performed using physical layer signaling (e.g., UCI), higher layer signaling (e.g., RRC signaling, MACCE), specific signals / channels (e.g., PUCCH, PUSCH, PRACH, reference signals), or combinations thereof.

[0381] In the case where the above notification is made via MAC CE, the MAC CE can also be identified by including a new LCID in the MAC subheader that is not specified in the existing standard.

[0382] In cases where the above notification is sent via UCI, the above notification may also be sent using PUCCH or PUSCH.

[0383] Furthermore, the notification of any information from the UE in the above embodiments can also be carried out periodically, semi-persistently, or non-periodically.

[0384] [Regarding the application of each implementation method]

[0385] At least one of the above-described embodiments can also be applied under certain conditions. These specific conditions can be specified in the standard or notified to the UE / BS using higher-layer signaling / physical layer signaling.

[0386] At least one of the above embodiments may also be applied only to UEs that have reported a specific UE capability or support that specific UE capability.

[0387] This specific UE capability can also represent at least one of the following: • Supports specific processing / operation / control / information for at least one of the above embodiments; • Supports cell-free / group-based / non-group-based beam reporting; • Supported CMRs / CMR groups / Joint reporting groups / CMRs in each CMR group / Number of CMRs in each joint reporting group.

[0388] Furthermore, the aforementioned specific UE capabilities can be capabilities that apply across all frequencies (frequency-independent and common), capabilities that apply to each frequency (e.g., one or a combination of cells, bands, band combinations, BWPs, component carriers, etc.), capabilities that apply to each frequency range (e.g., Frequency Range 1 (FR1)), FR2, FR3, FR4, FR5, FR2-1, FR2-2), capabilities that apply to each subcarrier spacing (SCS) or capabilities that apply to each feature set (FS) or each feature set per component carrier (FSPC).

[0389] Furthermore, the aforementioned specific UE capabilities can be either capabilities that apply to all duplex modes (commonly regardless of the duplex mode) or capabilities that apply to each duplex mode (e.g., Time Division Duplex (TDD) and Frequency Division Duplex (FDD)).

[0390] Furthermore, at least one of the above-described embodiments can also be applied when the UE is set / activated / triggered by specific information associated with the above-described embodiments (or performs the operations of the above-described embodiments) via higher-layer signaling / physical-layer signaling. For example, this specific information may be information indicating activation of cell-free / group-based beam reporting / non-group-based beam reporting, information related to the number of CMRs / CMR groups / joint reporting groups / CMRs per CMR group / CMRs per joint reporting group, arbitrary RRC parameters for a specific version (e.g., Rel. 20 and later), etc.

[0391] The UE may also apply the operation of Rel.15 / 16 / 17 / 18 if it does not support at least one of the above-mentioned specific UE capabilities or if the above-mentioned specific information is not set.

[0392] (Note 1)

[0393] With respect to one embodiment of this disclosure, the following invention is noted.

[0394] [Postscript 1-1]

[0395] A terminal having: The receiving unit, in the absence of group-based beam reporting, receives settings related to the amount of reported channel measurement resources (CMR); and The control unit controls the transmission of multiple CMR reports based on the aforementioned settings.

[0396] [Postscript 1-2]

[0397] As described in Appendix 1-1, among which, The setting includes M as the number of CMR groups used for the report, and N as the number of CMRs used for the report in each CMR group. The control unit selects N CMRs from each of the M CMR groups.

[0398] [Notes 1-3]

[0399] The terminals described in Appendix 1-1 or Appendix 1-2, wherein, The setting includes K as the number of CMRs used for the report, spanning multiple CMR groups. The control unit selects a total of K CMRs from the plurality of CMR groups.

[0400] [Notes 1-4]

[0401] The terminal described in any of Notes 1-1 to 1-3, wherein, The CMRs included in the same CMR group among the multiple CMRs are associated with the same Physical Cell ID (PCI).

[0402] (Note 2)

[0403] With respect to one embodiment of this disclosure, the following invention is noted.

[0404] [Postscript 2-1]

[0405] A terminal having: The receiving unit, without being configured to perform group-based beam reporting, receives settings for channel state information (CSI) reporting; and The control unit, based on the settings, controls the transmission of the CSI report, which includes multiple first fields and multiple second fields, wherein the multiple first fields represent the beam index corresponding to a CMR that is indexed for each Channel Measurement Resource (CMR) group, and the multiple second fields represent the ID of the CMR group.

[0406] [Postscript 2-2]

[0407] As described in Appendix 2-1, among which, The CSI report contains more than one set of fields. A set of fields corresponds to a CMR group and contains one or more first fields and one second field.

[0408] [Notes 2-3]

[0409] The terminal described in Appendix 2-1 or Appendix 2-2, wherein, The CSI report contains more than one set of fields. A set of fields corresponds to a CMR within a CMR group and contains a first field and a second field.

[0410] [Appendix 2-4]

[0411] The terminal described in any of Notes 2-1 to 2-3, wherein, A first field has a number of bits based on the number of CMRs contained in a CMR group.

[0412] (Note 3)

[0413] With respect to one embodiment of this disclosure, the following invention is noted.

[0414] [Postscript 3-1]

[0415] A terminal having: The receiving unit, when configured for group-based beam reporting, receives settings related to the number of reported channel measurement resources (CMR); and The control unit, based on the aforementioned settings, controls the transmission of reports from multiple joint report groups, each containing multiple CMRs.

[0416] [Postscript 3-2]

[0417] As described in Appendix 3-1, among which, The settings include P as the number of joint reporting groups and Q as the number of CMRs in each joint reporting group. The control unit selects P joint reporting groups, each containing Q CMRs.

[0418] [Postscript 3-3]

[0419] The terminals described in Appendix 3-1 or Appendix 3-2, wherein, The multiple CMRs included in the multiple joint reporting groups are all different from each other.

[0420] [Notes 3-4]

[0421] The terminal described in any of Notes 3-1 to 3-3, wherein, The multiple joint reporting groups include a first joint reporting group and a second joint reporting group. The number of CMRs included in the first joint reporting group is different from the number of CMRs included in the second joint reporting group.

[0422] (Note 4)

[0423] With respect to one embodiment of this disclosure, the following invention is noted.

[0424] [Postscript 4-1]

[0425] A terminal having: The receiving unit, when configured with group-based beam reporting, receives settings for channel state information (CSI) reporting; and The control unit, based on the settings, controls the transmission of the CSI report, which includes multiple first fields and multiple second fields. The multiple first fields represent the beam index corresponding to a CMR that is indexed across multiple Channel Measurement Resources (CMR) groups, and the multiple second fields represent the ID of a joint report group containing multiple CMRs.

[0426] [Postscript 4-2]

[0427] As described in Appendix 4-1, among which, The CSI report contains more than one set of fields. A set of fields corresponds to a joint report group and contains more than one of the first field and one second field. Different field sets contain the same number of the first field.

[0428] [Appendix 4-3]

[0429] The terminal described in Appendix 4-1 or Appendix 4-2, wherein, The CSI report contains more than one set of fields. A set of fields corresponds to a joint report group and contains more than one of the first field and one second field. Different field sets contain different numbers of the first field.

[0430] [Postscript 4-4]

[0431] The terminal described in any of Notes 4-1 to 4-3, wherein, A first field has a number of bits based on the number of CMRs that span multiple CMR groups.

[0432] (Wireless communication system)

[0433] The structure of a wireless communication system according to one embodiment of this disclosure will now be described. In this wireless communication system, communication is performed using any one or a combination of the wireless communication methods according to the above embodiments of this disclosure.

[0434] Figure 21 This is a diagram illustrating an example of the schematic structure of a wireless communication system according to one embodiment. The wireless communication system 1 (also referred to simply as System 1) may also be a system that uses Long Term Evolution (LTE) or 5th generation mobile communication system New Radio (5G NR) as standardized by the Third Generation Partnership Project (3GPP).

[0435] Furthermore, the wireless communication system 1 can also support dual connectivity between multiple radio access technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC can also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), etc.

[0436] In EN-DC, the LTE (E-UTRA) base station (eNB) is the Master Node (MN), and the NR base station (gNB) is the Secondary Node (SN). In NE-DC, the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.

[0437] Wireless communication system 1 can also support dual connectivity between multiple base stations within the same RAT (e.g., MN and SN are dual connectivity between NR base stations (gNB) (NR-NR Dual Connectivity (NN-DC))).

[0438] The wireless communication system 1 may also include a base station 11 forming a macro cell C1 with a relatively wide coverage area, and a base station 12 (12a-12c) configured within the macro cell C1 and forming a small cell C2 narrower than the macro cell C1. The user terminal 20 may also be located within at least one cell. The configuration and number of each cell and the user terminal 20 are not limited to the arrangement shown in the figure. Hereinafter, without distinguishing between base stations 11 and 12, they will be collectively referred to as base station 10.

[0439] User terminal 20 may also connect to at least one of multiple base stations 10. User terminal 20 may also utilize at least one of carrier aggregation (CA) using multiple component carriers (CC) and dual connectivity (DC).

[0440] Each CC can also be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). Macro cell C1 can also be included in FR1, and small cell C2 can also be included in FR2. For example, FR1 can also be a frequency band below 6 GHz (sub-6 GHz), and FR2 can also be a frequency band above 24 GHz (above-24 GHz). In addition, the frequency bands, definitions, etc. of FR1 and FR2 are not limited to these; for example, FR1 can also correspond to a frequency band higher than FR2.

[0441] In addition, user terminal 20 can also use at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) to communicate in each CC.

[0442] Multiple base stations 10 can also be connected via wired (e.g., fiber optic cable based on the Common Public Radio Interface (CPRI), X2 interface, etc.) or wireless (e.g., NR communication). For example, when NR communication is used as a backhaul between base stations 11 and 12, base station 11, which is equivalent to a host station, can also be referred to as an Integrated Access Backhaul (IAB) donor, and base station 12, which is equivalent to a relay station, can also be referred to as an IAB node.

[0443] Base station 10 may also be connected to core network 30 via other base stations 10 or directly. Core network 30 may include, for example, at least one of Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), etc.

[0444] The core network 30 may also include, for example, user plane functions (UPF), access and mobility management functions (AMF), session management functions (SMF), unified data management (UDM), application functions (AF), data network (DN), location management functions (LMF), and network functions (NF) such as operation, administration and maintenance (OAM). Alternatively, multiple functions can be provided through a single network node. Furthermore, communication with external networks (e.g., the Internet) can also be achieved via the DN.

[0445] User terminal 20 can also be a terminal that supports at least one of the following communication methods: LTE, LTE-A, 5G, etc.

[0446] In wireless communication system 1, wireless access methods based on Orthogonal Frequency Division Multiplexing (OFDM) can also be used. For example, in at least one of the downlink (DL) and uplink (UL) links, Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), and Single Carrier Frequency Division Multiple Access (SC-FDMA) can also be used.

[0447] The wireless access method can also be referred to as a waveform. In addition, 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 used in the wireless access methods of UL and DL.

[0448] In the wireless communication system 1, the downlink channel can also be a shared downlink channel (Physical Downlink Shared Channel (PDSCH)), a broadcast channel (Physical Broadcast Channel (PBCH)), or a downlink control channel (Physical Downlink Control Channel (PDCCH)) shared by each user terminal 20.

[0449] In addition, in the wireless communication system 1, the uplink channel can also be the shared uplink channel (Physical Uplink Shared Channel (PUSCH)), the uplink control channel (Physical Uplink Control Channel (PUCCH)), the random access channel (Physical Random Access Channel (PRACH)) shared by each user terminal 20, etc.

[0450] User data, high-level control information, and System Information Blocks (SIBs) are transmitted via the PDSCH. User data and high-level control information can also be transmitted via the PUSCH. In addition, Master Information Blocks (MIBs) can also be transmitted via the PBCH.

[0451] Lower-layer control information can also be transmitted via PDCCH. This lower-layer control information may include, for example, downlink control information (DCI), which includes scheduling information for at least one of PDSCH and PUSCH.

[0452] Additionally, the DCI that schedules PDSCH can also be called DL allocation, DL DCI, etc., and the DCI that schedules PUSCH can also be called UL authorization, UL DCI, etc. Furthermore, PDSCH can be rewritten as DL data, and PUSCH can be rewritten as UL data.

[0453] In PDCCH detection, a Control Resource Set (CORESET) and a search space can also be utilized. A CORESET corresponds to the resources used to search for DCIs. The search space corresponds to the search area and search method for PDCCH candidates. A CORESET can also be associated with one or more search spaces. The UE can also monitor CORESETs associated with a specific search space based on search space settings.

[0454] A search space can also correspond to a PDCCH candidate corresponding to one or more aggregation levels. One or more search spaces can also be referred to as a search space set. In addition, the terms "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting" etc. disclosed herein can be rewritten interchangeably.

[0455] The PUCCH can also transmit uplink control information (uplink control information (UCI)) that includes at least one of the following: Channel State Information (CSI), delivery confirmation information (e.g., also known as Hybrid Automatic Repeat Request ACK Knowledge (HARQ-ACK), ACK / NACK, etc.), and Scheduling Request (SR). The PRACH can also transmit random access preambles used for establishing connections with the cell.

[0456] In addition, in this disclosure, downlink, uplink, etc., may be described without the word "link". Furthermore, various channels may be described without the word "physical".

[0457] In wireless communication system 1, synchronization signals (SS) and downlink reference signals (DL-RS) can also be transmitted. In wireless communication system 1, DL-RS can also transmit cell-specific reference signals (CRS), channel state information reference signals (CSI-RS), demodulation reference signals (DMRS), positioning reference signals (PRS), and phase tracking reference signals (PTRS).

[0458] Synchronization signals can be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block containing SS (PSS, SSS) and PBCH (and DMRS for PBCH) can also be called an SS / PBCH block, SS block (SSB), etc. In addition, SS, SSB, etc. can also be called reference signals.

[0459] Furthermore, in wireless communication system 1, the uplink reference signal (UL-RS) can also transmit measurement reference signals (sounding reference signals (SRS)) and demodulation reference signals (DMRS). Additionally, DMRS can also be referred to as user terminal-specific reference signals (UE-specific reference signals).

[0460] (Base station)

[0461] Figure 22This diagram illustrates an example of the structure of a base station according to one embodiment. The base station 10 includes a control unit 110, a transmit / receive unit 120, a transmit / receive antenna 130, and a transmission path interface (transmission line interface) 140. Alternatively, the control unit 110, the transmit / receive unit 120, the transmit / receive antenna 130, and the transmission path interface 140 may each be provided in more than one manner.

[0462] Furthermore, while this example primarily illustrates the functional blocks of the characteristic portions of this embodiment, it is also conceivable that the base station 10 may also possess other functional blocks required for wireless communication. A portion of the processing of each unit described below may also be omitted.

[0463] The control unit 110 performs overall control of the base station 10. The control unit 110 can be composed of a controller, control circuit, etc., which are described based on common knowledge in the art to which this disclosure pertains.

[0464] The control unit 110 can also control signal generation and scheduling (e.g., resource allocation, mapping). The control unit 110 can also control transmission, reception, and measurement using the transmit / receive unit 120, transmit / receive antenna 130, and transmission path interface 140. The control unit 110 can also generate data, control information, sequences, etc., to be transmitted as signals and forward them to the transmit / receive unit 120. The control unit 110 can also perform call processing (setting, releasing, etc.) of the communication channel, status management of the base station 10, and management of wireless resources.

[0465] The transmitting / receiving 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 transmitting processing unit 1211 and a receiving processing unit 1212. The transmitting / receiving unit 120 may be composed of transmitters / receivers, RF circuits, baseband circuits, filters, phase shifters, measurement circuits, transmitting / receiving circuits, etc., as described based on common knowledge in the art to which this disclosure pertains.

[0466] The transmitting and receiving unit 120 can be configured as a single integrated transmitting and receiving unit, or it can be composed of a transmitting unit and a receiving unit. The transmitting unit can also be composed of a transmitting processing unit 1211 and an RF unit 122. The receiving unit can also be composed of a receiving processing unit 1212, an RF unit 122, and a measurement unit 123.

[0467] The transmitting and receiving antenna 130 can be constructed from an antenna, such as an array antenna, as described based on common knowledge in the art to which this disclosure pertains.

[0468] The transmitting / receiving unit 120 can also transmit the aforementioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting / receiving unit 120 can also receive the aforementioned uplink channel, uplink reference signal, etc.

[0469] The transmitting and receiving unit 120 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc., to form at least one of the transmitting beam and the receiving beam.

[0470] The transmitting and receiving unit 120 (transmitting processing unit 1211) may, for example, perform processing at the Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer (e.g., RLC retransmission control), and Medium Access Control (MAC) layer (e.g., HARQ retransmission control) on the data and control information obtained from the control unit 110, and generate a bit string to be transmitted.

[0471] The transmitting and receiving unit 120 (transmitting processing unit 1211) can also perform transmission processing such as channel coding (which may also include error correction coding), modulation, mapping, filter processing (filtering processing), Discrete Fourier Transform (DFT) processing (as needed), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output the baseband signal.

[0472] The transmitting and receiving unit 120 (RF unit 122) can also perform modulation, filtering, amplification, etc. on the baseband signal to the wireless frequency band, and transmit the wireless frequency band signal through the transmitting and receiving antenna 130.

[0473] On the other hand, the transmitting and receiving unit 120 (RF unit 122) can also amplify, filter, and demodulate the signals of the wireless frequency band received through the transmitting and receiving antenna 130 into the baseband signal.

[0474] The transmitting and receiving unit 120 (receiving and processing unit 1212) can also perform receiving and processing on the acquired baseband signal, including analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, to acquire user data, etc.

[0475] The transmitting / receiving unit 120 (measurement unit 123) can also perform measurements related to the received signal. For example, the measurement unit 123 can also perform radio resource management (RRM) measurements, channel state information (CSI) measurements, etc., based on the received signal. The measurement unit 123 can also measure received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results can also be output to the control unit 110.

[0476] The transmission path interface 140 can also transmit and receive signals (backhaul signaling) between the device included in the core network 30 (e.g., the network node providing the NF), other base stations 10, etc., and can also acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0477] In addition, the transmitting unit and receiving unit of the base station 10 in this disclosure may also be composed of at least one of a transmitting / receiving unit 120, a transmitting / receiving antenna 130, and a transmission path interface 140.

[0478] Base station 10 may also be at least one of the following base stations 1 to 4.

[0479] (Base Station 1)

[0480] In the absence of a group-based beam reporting configuration, the transmit / receive unit 120 may also transmit a configuration related to the number of reported channel measurement resources (CMRs) (e.g., the M / N / K RRC signaling configuration in the first embodiment). In this case, the control unit 110 may also control the reception of reports of multiple CMRs selected based on the configuration (e.g., M×N / K selected / reported CMRs in the first embodiment).

[0481] (Base station 2)

[0482] Even without a group-based beam report being configured, the transmit / receive unit 120 can also transmit settings for Channel State Information (CSI) reports (e.g., RRC signaling for setting M / N / K in the first embodiment). In this case, the control unit 110 can also control the reception of the CSI report, which is transmitted based on the settings and includes multiple first fields and multiple second fields, wherein the multiple first fields represent the beam index corresponding to a CMR indexed by each Channel Measurement Resource (CMR) group (e.g., ...). Figure 14B as well as Figure 14C The multiple CSI fields in the data (including beam index (CRI / SSBRI)) represent the CMR group ID (e.g., ...). Figure 14B as well as Figure 14C (Multiple CSI fields containing CMR group ID).

[0483] (Base station 3)

[0484] When group-based beam reporting is configured, the transmit / receive unit 120 may also transmit settings related to the number of reported channel measurement resources (CMRs) (e.g., RRC signaling for settings P / P1 / P2 / P3 / Q / Q1 / Q2 / Q3, etc., in the second embodiment). In this case, the control unit 110 may also control the reception of reports that are transmitted based on the settings and that each group of reports contains multiple CMRs.

[0485] (Base station 4)

[0486] When a group-based beam report is configured, the transmit / receive unit 120 can also transmit settings for a channel state information (CSI) report (e.g., RRC signaling for setting P / P1 / P2 / P3 / Q / Q1 / Q2 / Q3, etc., in the second embodiment). In this case, the control unit 110 can also control the reception of the CSI report, which is transmitted based on the settings and includes multiple first fields and multiple second fields, wherein the multiple first fields represent beam indices corresponding to CMRs indexed across multiple channel measurement resource (CMR) groups (e.g., ...). Figure 20A as well as Figure 20B The multiple CSI fields (including beam index (CRI / SSBRI)) in the report represent the ID of a joint reporting group containing multiple CMRs (e.g., Figure 20A as well as Figure 20B (Multiple CSI fields containing the ID of the joint reporting group).

[0487] (User terminal)

[0488] Figure 23 This diagram illustrates an example of the structure of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. Alternatively, more than one of each of the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may be included.

[0489] Furthermore, while this example primarily illustrates the functional blocks of the characteristic portions of this embodiment, it is also conceivable that the user terminal 20 may also have other functional blocks required for wireless communication. Some of the processing of each unit described below may also be omitted.

[0490] The control unit 210 performs overall control of the user terminal 20. The control unit 210 can be composed of a controller, control circuit, etc., which are described based on common knowledge in the technical field to which this disclosure pertains.

[0491] The control unit 210 can also control signal generation, mapping, etc. The control unit 210 can also control transmission, reception, measurement, etc., using the transmission / reception unit 220 and the transmission / reception antenna 230. The control unit 210 can also generate data, control information, sequences, etc., to be transmitted as signals and forward them to the transmission / reception unit 220.

[0492] The transmitting / receiving unit 220 may also include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may also include a transmitting processing unit 2211 and a receiving processing unit 2212. The transmitting / receiving unit 220 may be composed of transmitters / receivers, RF circuits, baseband circuits, filters, phase shifters, measurement circuits, transmitting / receiving circuits, etc., as described based on common knowledge in the art to which this disclosure pertains.

[0493] The transmitting and receiving unit 220 can be configured as a single integrated transmitting and receiving unit, or it can be composed of a transmitting unit and a receiving unit. The transmitting unit can also be composed of a transmitting processing unit 2211 and an RF unit 222. The receiving unit can also be composed of a receiving processing unit 2212, an RF unit 222, and a measurement unit 223.

[0494] The transmitting and receiving antenna 230 can be constructed from an antenna, such as an array antenna, as described based on common knowledge in the art to which this disclosure pertains.

[0495] The transmitting / receiving unit 220 can also receive the downlink channel, synchronization signal, downlink reference signal, etc., mentioned above. The transmitting / receiving unit 220 can also transmit the uplink channel, uplink reference signal, etc., mentioned above.

[0496] The transmitting and receiving unit 220 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc., to form at least one of the transmitting beam and the receiving beam.

[0497] The transmitting and receiving unit 220 (transmitting processing unit 2211) may, for example, perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control) on the data and control information obtained from the control unit 210, and generate the bit string to be transmitted.

[0498] The transmitting and receiving unit 220 (transmitting processing unit 2211) can also perform channel coding (which may include error correction coding), modulation, mapping, filter processing, DFT processing (as needed), IFFT processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be transmitted, and output the baseband signal.

[0499] Furthermore, whether or not to apply DFT processing can be based on the transform precoding settings. For a certain channel (e.g., PUSCH), if transform precoding is enabled, the transmit / receive unit 220 (transmit processing unit 2211) can perform DFT processing as described above for transmitting the channel using the DFT-s-OFDM waveform; otherwise, the transmit / receive unit 220 (transmit processing unit 2211) can perform DFT processing as described above for transmitting the channel without performing DFT processing.

[0500] The transmitting and receiving unit 220 (RF unit 222) can also perform modulation, filtering, amplification, etc. on the baseband signal to the wireless frequency band, and transmit the wireless frequency band signal through the transmitting and receiving antenna 230.

[0501] On the other hand, the transmitting and receiving unit 220 (RF unit 222) can also amplify, filter, demodulate, etc., the signals of the wireless frequency band received by the transmitting and receiving antenna 230.

[0502] The transmitting and receiving unit 220 (receiving and processing unit 2212) can also perform receiving and processing on the acquired baseband signal, such as analog-to-digital conversion, FFT processing, IDFT processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, to obtain user data.

[0503] The transmitting / receiving unit 220 (measurement unit 223) can also perform measurements related to the received signal. For example, the measurement unit 223 can also perform RRM measurements, CSI measurements, etc., based on the received signal. The measurement unit 223 can also measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results can also be output to the control unit 210.

[0504] Additionally, the measurement unit 223 can also derive channel measurements for CSI calculation based on channel measurement resources. Channel measurement resources can be, for example, non-zero power (NZP) CSI-RS resources. Furthermore, the measurement unit 223 can also derive interference measurements for CSI calculation based on interference measurement resources. Interference measurement resources can be at least one of NZP CSI-RS resources for interference measurement, CSI-Interference Measurement (IM) resources, etc. Additionally, CSI-IM can also be referred to as CSI-Interference Management (IM), and can be interchanged with zero power (ZP) CSI-RS. Furthermore, in this disclosure, CSI-RS, NZP CSI-RS, ZP CSI-RS, CSI-IM, CSI-SSB, NZP-IMR, ZP-IMR, etc., can also be interchanged.

[0505] Alternatively, the transmitting and receiving units of the user terminal 20 in this disclosure may also be composed of at least one transmitting / receiving unit 220 and transmitting / receiving antenna 230.

[0506] User terminal 20 may also be at least one of the following user terminals 1 to 4.

[0507] (User terminal 1)

[0508] Even without group-based beam reporting being configured, the transmit / receive unit 220 can also receive settings related to the number of reported channel measurement resources (CMRs) (e.g., the M / N / K RRC signaling setting in the first embodiment). In this case, the control unit 210 can also control the transmission of reports for multiple CMRs (e.g., M×N / K selected / reported CMRs in the first embodiment) based on the settings.

[0509] The settings may also include M as the number of CMR groups used for the report (e.g., the number of CMR groups selected / reported in the first embodiment (M)) and N as the number of CMRs used for the report in each CMR group (e.g., the number of CMRs in each CMR group selected / reported in the first embodiment (N)). In this case, the control unit 210 may also select N CMRs from each of the M CMR groups.

[0510] The setting may also include K as the number of CMRs for reporting across multiple CMR groups (e.g., the number of CMRs selected / reported across all set CMR groups in the first embodiment (K)). In this case, the control unit 210 may also select a total of K CMRs from the multiple CMR groups.

[0511] CMRs that belong to the same CMR group can also be associated with the same Physical Cell ID (PCI).

[0512] (User terminal 2)

[0513] Even without a group-based beam report being configured, the transmit / receive unit 220 can still receive settings for Channel State Information (CSI) reports (e.g., RRC signaling for setting M / N / K in the first embodiment). In this case, the control unit 210 can also control the transmission of the CSI report, which includes multiple first fields and multiple second fields, based on the settings. The multiple first fields represent the beam index corresponding to a CMR indexed by each Channel Measurement Resource (CMR) group (e.g., ...). Figure 14B as well as Figure 14C The multiple CSI fields in the data (including beam index (CRI / SSBRI)) represent the CMR group ID (e.g., ...). Figure 14B as well as Figure 14C (Multiple CSI fields containing CMR group ID).

[0514] The CSI report may also contain more than one set of fields (e.g., Figure 14B (CSI field sets #A1, #A2). A field set can also correspond to a CMR group and contain more than one first field and one second field.

[0515] The CSI report may also contain more than one set of fields (e.g., Figure 14C The CSI field set (#B1, #B2, ...). A field set can also correspond to a CMR within a CMR group and contain a first field and a second field.

[0516] A first field may also have a number of bits based on the number of CMRs contained in a CMR group (e.g., ceil(log2(MAX_pergroup)) in implementation 1.6).

[0517] (User terminal 3)

[0518] When group-based beam reporting is configured, the transmit / receive unit 220 can also receive settings related to the number of reported channel measurement resources (CMRs) (e.g., RRC signaling for settings P / P1 / P2 / P3 / Q / Q1 / Q2 / Q3, etc., in the second embodiment). In this case, the control unit 210 can also control the transmission of reports from multiple joint report groups, each containing multiple CMRs, based on the settings.

[0519] The settings may also include P as the number of joint reporting groups (e.g., the number of joint reporting groups selected / reported in Implementation 2.1 (P)) and Q as the number of CMRs in each joint reporting group (e.g., the number of CMRs in each joint reporting group selected / reported in Implementation 2.1 (Q)). In this case, the control unit 210 may also select P joint reporting groups that each contain Q CMRs.

[0520] The multiple CMRs included in the multiple joint reporting groups may also be different from each other.

[0521] The plurality of joint reporting groups may also include a first joint reporting group and a second joint reporting group. The number of CMRs included in the first joint reporting group (e.g., the number of CMRs (Q1) in the first joint reporting group in embodiment 2.2) may also be different from the number of CMRs included in the second joint reporting group (e.g., the number of CMRs (Q2) in the second joint reporting group in embodiment 2.2).

[0522] (User terminal 4)

[0523] When a group-based beam report is configured, the transmit / receive unit 220 can also receive settings for channel state information (CSI) reports (e.g., RRC signaling for setting P / P1 / P2 / P3 / Q / Q1 / Q2 / Q3, etc., in the second embodiment). In this case, the control unit 210 can also control the transmission of the CSI report, which includes multiple first fields and multiple second fields, based on the settings. The multiple first fields represent beam indices corresponding to CMRs that are indexed across multiple group-based channel measurement resources (CMRs) (e.g., ...). Figure 20A as well as Figure 20B The multiple CSI fields (including beam index (CRI / SSBRI)) in the report represent the ID of a joint reporting group containing multiple CMRs (e.g., Figure 20A as well as Figure 20B (Multiple CSI fields containing the ID of the joint reporting group).

[0524] The CSI report may also contain more than one set of fields (e.g., Figure 20A(CSI field sets #A1, #A2 in the CSI database). A field set may also correspond to a joint report group and contain more than one of the first field and one second field. Different field sets may also contain the same number of first fields.

[0525] The CSI report may also contain more than one set of fields (e.g., Figure 20B The CSI field sets #B1, #B2, and #B3 in the table. A field set may also correspond to a joint report group and contain more than one of the first fields and one second field. Different field sets may also contain different numbers of the first fields.

[0526] A first field can also have a number of bits based on the number of CMRs that span multiple CMR groups.

[0527] (Hardware structure)

[0528] Furthermore, the block diagrams used in the description of the above embodiments illustrate functional units. These functional blocks (structural units) are implemented through any combination of at least one of hardware and software. Moreover, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented using a single device that is physically or logically combined, or it can be implemented by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. A functional block can also be implemented by combining the aforementioned single device or multiple devices with software.

[0529] Here, the functions include judgment, decision, determination, calculation, calculation, processing, export, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, regard as, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, a functional block (structural unit) that implements the sending function can also be called a transmitting unit, transmitter, etc. Each of these, as described above, is not particularly limited in its implementation method.

[0530] For example, in one embodiment of this disclosure, the base station, user terminal, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 24This is a diagram illustrating an example of the hardware structure of a base station and a user terminal according to one embodiment. The base station 10 and the user terminal 20 described above can also be physically configured as a computer device including a processor 1001, a memory 1002, a storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0531] Furthermore, in this disclosure, terms such as apparatus, circuit, device, section, and unit can be interchanged. The hardware structure of base station 10 and user terminal 20 can be configured to include one or more of the apparatuses shown in the figures, or it can be configured not to include any of the apparatuses.

[0532] For example, only one processor 1001 is shown, but there can be multiple processors. Furthermore, processing can be performed by one processor, or simultaneously, sequentially, or by two or more processors using other methods. Additionally, processor 1001 can be implemented using more than one chip.

[0533] Regarding the functions in base station 10 and user terminal 20, for example, by reading specific software (programs) into hardware such as processor 1001 and memory 1002, so that processor 1001 performs calculations and controls communication via communication device 1004, or by controlling at least one of reading and writing data in memory 1002 and storage device 1003.

[0534] The processor 1001 enables the operating system to operate and control the computer as a whole. The processor 1001 may also be a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic devices, registers, etc. For example, at least a portion of the control unit 110 (210), the transmit / receive unit 120 (220), etc., described above may also be implemented by the processor 1001.

[0535] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and performs various processes accordingly. As a program, a program that causes the computer to perform at least a portion of the operations described in the above embodiments can be used. For example, the control unit 110 (210) can also be implemented by a control program stored in the memory 1002 and operated in the processor 1001; similar implementations can be made for other functional blocks.

[0536] The memory 1002 may also be a computer-readable recording medium, such as being composed of at least one of a read-only memory (ROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a random access memory (RAM), or other suitable storage media. The memory 1002 may also be referred to as a register, cache, main memory (main storage device), etc. The memory 1002 is capable of storing executable programs (program code), software modules, etc., for implementing the wireless communication method according to an embodiment of this disclosure.

[0537] Storage device 1003 may also be a computer-readable recording medium, such as a flexible disc, floppy disk, optical disk (e.g., compact disc ROM, CD-ROM), digital multifunction disk, Blu-ray disc, removable disk, hard disk, smart card, flash memory device (e.g., card, stick, key drive), stripe, database, server, or at least one other suitable storage medium. Storage device 1003 may also be referred to as an auxiliary storage device.

[0538] The communication device 1004 is hardware (transmitting and receiving device) used for communication between computers via at least one of a wired network and a wireless network. It is also referred to as a network device, network controller, network interface card (NIC), communication module, etc. To implement at least one of, for example, Frequency Division Duplex (FDD) and Time Division Duplex (TDD), the communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the aforementioned transmit / receive unit 120 (220) and transmit / receive antenna 130 (230) may also be implemented by the communication device 1004. The transmit / receive unit 120 (220) may also be implemented by physically or logically separating the transmit unit 120a (220a) and the receive unit 120b (220b).

[0539] Input device 1005 is an input device that receives input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, light-emitting diode (LED) lamp, etc.). Alternatively, input device 1005 and output device 1006 can also be an integrated structure (e.g., a touch panel).

[0540] Furthermore, the processor 1001, memory 1002, and other devices are connected via a bus 1007 for communicating information. The bus 1007 can be configured as a single bus or as different buses between the devices.

[0541] Furthermore, the base station 10 and the user terminal 20 can 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), or a field-programmable gate array (FPGA), and can also use this hardware to implement part or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0542] (Modified example)

[0543] Furthermore, the terms described in this disclosure, as well as those necessary for understanding this disclosure, may be replaced with terms that have the same or similar meanings. For example, channel, symbol, and signal (signal or signaling) may be interchanged. Additionally, a signal may also be a message. A reference signal can also be abbreviated as RS, and may be referred to as pilot, pilot signal, etc., depending on the applied standard. Furthermore, a component carrier (CC) may also be referred to as cell, frequency carrier, carrier frequency, etc.

[0544] A radio frame can also be composed of one or more periods (frames) in the time domain. Each of these periods (frames) that constitute a radio frame can also be called a subframe. Furthermore, a subframe can also be composed of one or more time slots in the time domain. A subframe can also be a fixed time length (e.g., 1 ms) independent of the parameter set (numerology).

[0545] Here, the parameter set can also be communication parameters applied in at least one of the transmission and reception of a signal or channel. For example, the parameter set can also represent at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transmitter and receiver in the frequency domain, and specific windowing processing performed by the transmitter and receiver in the time domain.

[0546] In the time domain, a time slot can also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.). In addition, a time slot can also be a time unit based on a set of parameters.

[0547] A time slot can also contain multiple mini-time slots. Each mini-time slot can also consist of one or more symbols in the time domain. Furthermore, a mini-time slot can also be called a sub-time slot. A mini-time slot can also consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in a time unit larger than a mini-time slot can also be called PDSCH (PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using mini-time slots can also be called PDSCH (PUSCH) mapping type B.

[0548] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can also use their respective other names. Furthermore, the time units such as frames, subframes, time slots, mini-time slots, and symbols in this disclosure can be interchanged.

[0549] For example, a subframe can also be called a TTI, multiple consecutive subframes can also be called a TTI, and a time slot or a mini-time slot can also be called a TTI. That is, at least one of a subframe and a TTI can be a subframe in existing LTE (1ms), a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. In addition, the unit representing TTI may not be called a subframe, but rather a time slot, mini-time slot, etc.

[0550] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules radio resources (frequency bandwidth, transmit power, etc., available to each user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0551] TTI can also be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., and can also be a unit of processing such as scheduling and link adaptation. In addition, when a TTI is given, the actual time interval (e.g., the number of symbols) mapped to transmission blocks, code blocks, codewords, etc. can be shorter than the TTI.

[0552] Additionally, where a time slot or a mini-time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini-time slot) can also be the minimum time unit for scheduling. Furthermore, the number of time slots (mini-time slots) constituting the minimum time unit of the schedule can also be controlled.

[0553] A TTI with a duration of 1 ms can also be referred to as a normal TTI (TTI in 3GPP Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI can also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub-time slot, a time slot, etc.

[0554] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) can also be rewritten as a TTI with a duration of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can also be rewritten as a TTI with a duration of less than a long TTI but more than 1 ms.

[0555] A resource block (RB) is a unit of resource allocation in both the time and frequency domains. In the frequency domain, it can also contain one or more consecutive subcarriers. The number of subcarriers in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers in an RB can also be determined based on the parameter set.

[0556] Furthermore, an RB can contain one or more symbols in the time domain, and can also be a time slot, a mini-time slot, a subframe, or the length of a TTI. A TTI, a subframe, etc., can also be composed of one or more resource blocks.

[0557] In addition, one or more RBs can also be referred to as Physical Resource Blocks (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0558] In addition, a resource block can also consist of one or more resource elements (REs). For example, an RE can also be a radio resource area consisting of a subcarrier and a symbol.

[0559] The Bandwidth Part (BWP) (also referred to as partial bandwidth, etc.) can also represent a subset of consecutive common resource blocks (RBs) used for a certain parameter set in a carrier. Here, common RBs can also be determined by the index of RBs based on the common reference point of the carrier. PRBs can also be defined in a BWP and appended with numbers within that BWP.

[0560] A BWP can also include a UL BWP (the BWP used by UL) and a DL BWP (the BWP used by DL). For a UE, one or more BWPs can also be set within a single carrier.

[0561] At least one of the configured BWPs can be active, and the UE may not intend to transmit or receive specific signals / channels outside of the active BWPs. Furthermore, the terms "cell," "carrier," etc., in this disclosure can be rewritten as "BWP."

[0562] Furthermore, the structures described above, such as radio frames, subframes, time slots, mini-time slots, and symbols, are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, and the number of symbols in a TTI, symbol length, and cyclic prefix (CP) length can be varied in many ways.

[0563] Furthermore, the information, parameters, etc., described in this disclosure can be represented by absolute values, relative values ​​with respect to a specific value, or other corresponding information. For example, wireless resources can also be indicated by a specific index.

[0564] In this disclosure, the names used for parameters, etc., are not limiting names in any respect. Furthermore, the mathematical expressions, etc., using these parameters may differ 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 limiting names in any respect.

[0565] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be mentioned throughout the above description, can also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0566] Furthermore, information, signals, etc., can be output in at least one of the following directions: from higher level (upper layer) to lower level (lower layer), and from lower layer to higher level. Information, signals, etc., can also be input and output via multiple network nodes.

[0567] Input and output information, signals, etc., can be stored in a specific location (e.g., memory) or managed using a management table. Input and output information, signals, etc., can be overwritten, updated, or appended. Output information, signals, etc., can also be deleted. Input information, signals, etc., can also be sent to other devices.

[0568] The notification of information is not limited to the methods / implementations described in this disclosure, and may also be carried out by other methods. For example, the notification of information in this disclosure may also be implemented by physical layer signaling (e.g., downlink control information (DCI), uplink control information (UCI), etc.), higher layer signaling (e.g., radio resource control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB) etc.), medium access control (MAC) signaling), other signals, or combinations thereof.

[0569] In addition, physical layer signaling can also be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signals), L1 control information (L1 control signals), etc. Furthermore, RRC signaling can also be referred to as RRC messages, such as RRC connection setup messages, RRC connection reconfiguration messages, etc. Additionally, MAC signaling can also be notified using, for example, MAC control elements (CE).

[0570] Furthermore, notification of specific information (e.g., a notification of “is X”) is not limited to explicit notification, but can also be implicit (e.g., by not providing that specific information, or by providing other information).

[0571] The determination can be made by a value represented by a single bit (0 or 1), by a true or false value (boolean), or by a numerical comparison (e.g., a comparison with a specific value).

[0572] Whether software is called software, firmware, middleware, microcode, hardware description language, or any other name, it should be broadly interpreted to refer to instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0573] Furthermore, software, instructions, and information can also be sent and received via a transmission medium. For example, when software is sent 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 within the definition of a transmission medium.

[0574] The terms “system” and “network” as used in this disclosure are interchangeable. “Network” may also mean devices included in a network (e.g., base stations).

[0575] In this disclosure, the terms “precoding”, “precoder”, “weight (precoding weight)”, “quasi-co-location (QCL)”, “transmission configuration indication state (TCI state)”, “spatial relation”, “spatial domain filter”, “transmit power”, “phase rotation”, “antenna port”, “layer”, “number of layers”, “rank”, “resource”, “resource set”, “beam”, “beamwidth”, “beam angle”, “antenna”, “antenna element”, “panel”, “UE panel”, “transmitting entity”, and “receiving entity” are used interchangeably.

[0576] Furthermore, in this disclosure, the antenna port can also be rewritten with an antenna port used for any signal / channel (e.g., a DeModulation Reference Signal (DMRS) port). In this disclosure, resources can also be rewritten with resources used for any signal / channel (e.g., reference signal resources, SRS resources, etc.). Additionally, resources can also include time / frequency / code / spatial / power resources. Moreover, the spatial domain transmission filter can also include at least one of a spatial domain transmission filter and a spatial domain reception filter.

[0577] The aforementioned groups may include, for example, at least one of the following: spatial relation group, code division multiplexing (CDM) group, reference signal (RS) group, control resource set (CORESET) group, PUCCH group, antenna port group (e.g., DMRS port group), layer group, resource group, beam group, antenna group, panel group, etc.

[0578] Furthermore, in this disclosure, beam, SRS Resource Indicator (SRI), CORESET, CORESET pool, PDSCH, PUSCH, Codeword (CW), Transport Block (TB), RS, etc., can also be rewritten to each other.

[0579] Furthermore, in this disclosure, the TCI state, downlink TCI state (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, and joint TCI state can also be rewritten to each other.

[0580] Furthermore, in this disclosure, terms such as "QCL", "QCL concept", "QCL relationship", "QCL type information", "QCL property (QCLproperty / properties)", "specific QCL type (e.g., type A, type D) property", and "specific QCL type (e.g., type A, type D)" can be rewritten interchangeably.

[0581] In this disclosure, indexes, identifiers (IDs), indicators, indications, resource IDs, etc., can also be interchanged. In this disclosure, sequences, lists, sets, groups, clusters, subsets, etc., can also be interchanged.

[0582] Furthermore, the spatial relationship information identifier (ID) (TCI state ID) and the spatial relationship information (TCI state) can be interchanged. "Spatial relationship information (TCI state)" can also be interchanged with "a set of spatial relationship information (TCI states)," "one or more spatial relationship information," etc. TCI state and TCI can also be interchanged. Spatial relationship information and spatial relationship can also be interchanged.

[0583] In this disclosure, the terms "Base Station (BS)", "Wireless Base Station", "Fixed Station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "Access Point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "Panel", "Cell", "Sector", "Cell Group", "Carrier", and "Component Carrier" are used interchangeably. There are also instances where the terms macro cell, small cell, femtocell, and picocell are used to refer to a base station.

[0584] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, its overall coverage area can be divided into several smaller areas, each of which 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 portion or all of the coverage area of ​​at least one of the base station and base station subsystem providing communication services within that coverage area.

[0585] In this disclosure, the information sent by the base station to the terminal can also be rewritten with the control / operation instructed by the base station to the terminal based on that information.

[0586] In this disclosure, the terms “Mobile Station (MS)”, “user terminal”, “user equipment (UE)”, and “terminal” are used interchangeably.

[0587] There are also instances where mobile stations are referred to as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals, handsets, user agents, mobile clients, clients, or several other appropriate terms.

[0588] At least one of the base station and the mobile station can also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. Additionally, at least one of the base station and the mobile station can also be a device mounted on a moving object, the moving object itself, etc.

[0589] The term "mobile body" refers to a movable object whose speed is arbitrary, including situations where the body is stationary. Examples of such mobile bodies include vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, loading shovels, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trolleys, rickshaws, ships (including vessels and other watercraft), airplanes, rockets, satellites, drones, multi-rotor aircraft, quadcopters, balloons, and objects carried on them, but are not limited to these. Furthermore, the mobile body can also be a mobile body that moves autonomously based on operational commands.

[0590] The mobile entity can be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile entity moving in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or a robot (humanized or unmanned). Additionally, at least one of the base station and the mobile station may include a device that does not necessarily move during communication operations. 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.

[0591] Figure 25 This figure illustrates an example of a vehicle according to one embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a gear shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a speed sensor 51, a pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a gear shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0592] The drive unit 41 is comprised of at least one of an engine, a motor, or a combination of an engine and a motor. The steering unit 42 is configured to include at least a steering wheel (also called a handlebar) and to steer at least one of the front wheel 46 and the rear wheel 47 based on the operation of the steering wheel by the user.

[0593] The electronic control unit 49 consists of a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (e.g., an input / output (IO) port) 63). Signals from various sensors 50-58 present in the vehicle are input into the electronic control unit 49. The electronic control unit 49 can also be referred to as an ECU (Electronic Control Unit).

[0594] The signals from various sensors 50-58 include current signals from current sensor 50 that senses the current of the motor, speed signals from front wheel 46 / rear wheel 47 obtained by speed sensor 51, air pressure signals from front wheel 46 / rear wheel 47 obtained by air pressure sensor 52, vehicle speed signals obtained by vehicle speed sensor 53, acceleration signals obtained by acceleration sensor 54, accelerator pedal 43 depress amount signals obtained by accelerator pedal sensor 55, brake pedal 44 depress amount signals obtained by brake pedal sensor 56, shift lever 45 operation signals obtained by shift lever sensor 57, and detection signals obtained by object detection sensor 58 for detecting obstacles, vehicles, pedestrians, etc.

[0595] The information service unit 59 comprises various devices such as a vehicle navigation system, audio system, speakers, display, television, and radio, used to provide (output) various information such as driving information, traffic information, and entertainment information, as well as one or more ECUs that control these devices. The information service unit 59 uses information obtained from external devices via the communication module 60, etc., to provide various information / services (e.g., multimedia information / multimedia services) to the occupants of the vehicle 40.

[0596] The information service unit 59 may include input devices that accept input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) or output devices that implement output to the outside (e.g., display, speaker, LED light, touch panel, etc.).

[0597] The driver assistance system unit 64 comprises various devices used to provide functions for preventing accidents and reducing the driver's workload, such as millimeter-wave radar, light detection and ranging (LiDAR), cameras, positioning devices (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyroscope systems (e.g., Inertial Measurement Unit (IMU)) and Inertial Navigation System (INS)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. Furthermore, the driver assistance system unit 64 sends and receives various information via a communication module 60 and implements driver assistance or autonomous driving functions.

[0598] The communication module 60 can communicate with the microprocessor 61 and the structural elements of the vehicle 40 via the communication port 63. For example, the communication module 60 sends and receives data (information) with the microprocessor 61 and memory (ROM, RAM) 62, and various sensors 50-58 in the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, gear shift lever 45, left and right front wheels 46, left and right rear wheels 47, axle 48, electronic control unit 49 of the vehicle 40 via the communication port 63.

[0599] The communication module 60 is controlled by the microprocessor 61 of the electronic control unit 49 and is a communication device capable of communicating with external devices. For example, it can transmit and receive various types of information with external devices via wireless communication. The communication module 60 can be located either inside or outside the electronic control unit 49. The external device can be, for example, the aforementioned base station 10, user terminal 20, etc. Furthermore, the communication module 60 can be, for example, at least one of the aforementioned base station 10 and user terminal 20 (or it can function as at least one of the base station 10 and user terminal 20).

[0600] The communication module 60 can also wirelessly transmit at least one of the following to an external device: signals from the various sensors 50-58 described above that are input to the electronic control unit 49, information obtained based on these signals, and information based on input from an external source (user) obtained via the information service unit 59. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc., can also be referred to as input units that receive input. For example, the PUSCH transmitted via the communication module 60 can also contain information based on the aforementioned input.

[0601] The communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) sent from external devices and displays it to the information service unit 59 provided by the vehicle. The information service unit 59 can also be referred to as an output unit that outputs information (for example, outputs information to devices such as displays and speakers based on the PDSCH received through the communication module 60 (or data / information decoded from the PDSCH).

[0602] Furthermore, the communication module 60 stores various information received from external devices in a memory 62 that can be used by the microprocessor 61. The microprocessor 61 can also control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, gear shift lever 45, left and right front wheels 46, left and right rear wheels 47, axle 48, and various sensors 50-58 of the vehicle 40 based on the information stored in the memory 62.

[0603] Furthermore, the base station in this disclosure can also be rewritten as a user terminal. For example, various methods / implementations of this disclosure can be applied to structures where communication between the base station and the user terminal is replaced by communication between multiple user terminals (e.g., also referred to as device-to-device (D2D) or vehicle-to-everything (V2X)). In this case, it can also be configured such that the user terminal 20 has the functions of the base station 10 described above. In addition, terms such as "uplink" and "downlink" can be rewritten as terms corresponding to inter-terminal communication (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can also be rewritten as sidelink channel.

[0604] Similarly, the user terminal in this disclosure can also be rewritten as a base station. In this case, it can also be configured such that the base station 10 has the functions of the user terminal 20 described above.

[0605] In this disclosure, operations are assumed to be performed by the base station, and sometimes, depending on the circumstances, by its upper node. Clearly, in a network containing one or more network nodes having a base station, various operations for communication with a terminal can 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 combinations thereof.

[0606] The various methods / implementations described in this disclosure can be used individually or in combination, and can be switched as needed during execution. Furthermore, the processing procedures, timing sequences, flowcharts, etc., of the various methods / implementations described in this disclosure can be rearranged as long as they do not contradict each other. For example, for the method described in this disclosure, the illustrated order is used to indicate various steps, but the order in which they are indicated is not limited.

[0607] The various methods / implementations described in this disclosure can also be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or a decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Futuregeneration Radio Access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE This includes 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-Wideband (UWB)), Bluetooth (registered trademark), systems utilizing other suitable wireless communication methods, and next-generation systems derived from enhancements, modifications, creations, or specifications based on them. Furthermore, multiple systems can be combined (e.g., LTE or LTE-A, combinations with 5G, etc.) for application.

[0608] As used in this disclosure, the term "based on" does not mean "based on only" unless otherwise specified. In other words, the term "based on" means both "based on only" and "based on at least".

[0609] Any reference to an element using the designations "first," "second," etc., as used in this disclosure does not comprehensively limit the quantity or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, reference to the first and second elements does not imply that only two elements may be used, or that the first element must take precedence over the second element in some form.

[0610] The term "determining" as used in this disclosure can encompass a wide variety of operations. For example, "determining" can also refer to judging, calculating, computing, processing, deriving, investigating, looking up (search, inquiry) (e.g., searching in a table, database or other data structure), and ascertaining.

[0611] In addition, "judgment (decision)" can also refer to receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, accessing (e.g., accessing data in memory), etc., as situations where "judgment (decision)" is performed.

[0612] Furthermore, "judgment (decision)" can also refer to situations where resolving, selecting, choosing, establishing, or comparing are considered as making a "judgment (decision)". That is, "judgment (decision)" can also refer to certain operations as making a "judgment (decision)". In this disclosure, "judgment (decision)" can also be rewritten in relation to the operations described above.

[0613] Furthermore, in this disclosure, "determine / determining" can also be interchanged with "assume / assuming," "expect / expecting," "consider / considering," etc. Additionally, in this disclosure, "not assuming..." can also be interchanged with "assuming not...".

[0614] In this disclosure, "expect" can also be interchanged with "be expected." For example, "expect(s)..." (where "..." can also be expressed using a that clause, to infinitive, etc.) can also be interchanged with "be expected...". "Does not expect..." can also be interchanged with "be not expected...". Furthermore, "An apparatus A is not expected..." can also be interchanged with "Apparatus B other than apparatus A does not expect..." (for example, if apparatus A is a UE, apparatus B can also be a base station).

[0615] The term "maximum transmit power" as used in this disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0616] As used in this disclosure, the terms “connected,” “coupled,” or all variations thereof, refer to all direct or indirect connections or combinations between two or more elements, and can include cases where there is one or more intermediate elements between two mutually “connected” or “coupled” elements. The connections or combinations between elements can be physical, logical, or a combination thereof. For example, “connection” can also be rewritten as “access.”

[0617] In this disclosure, when two elements are connected, it is possible to consider using more than one wire, cable, printed electrical connection, etc. to be "connected" or "combined" with each other, and as several non-limiting and non-exclusive examples, to use electromagnetic energy with wavelengths having wireless frequency domain, microwave region, light (both visible and invisible) region to be "connected" or "combined" with each other.

[0618] In this disclosure, the term "A is different from B" can also mean "A and B are different from each other." Additionally, the term can also mean "A and B are each different from C." Terms such as "separate" and "combined" can also be interpreted in the same way as "different."

[0619] When the terms "include," "including," and variations thereof are used in this disclosure, these terms, like the term "comprising," mean inclusive. Furthermore, the term "or" as used in this disclosure does not mean XOR.

[0620] In this disclosure, for example, in cases where articles are added through translation such as a, an, and the in English, the disclosure may also include cases where the noun following these articles is in a plural form.

[0621] In this disclosure, words such as "below," "less than," "above," "more than," and "equal to" can be interchanged. Furthermore, in this disclosure, words meaning "good," "bad," "large," "small," "high," "low," "early," "late," "wide," and "narrow" can be interchanged, not limited to the positive, comparative, and superlative degrees. Additionally, in this disclosure, words meaning "good," "bad," "large," "small," "high," "low," "early," "late," "wide," and "narrow" can also be interchanged as expressions accompanied by "i" (where i is any integer), not limited to the positive, comparative, and superlative degrees (e.g., "highest" can also be interchanged with "i-th highest").

[0622] In this disclosure, "of", "for", "regarding", "related to", "associated with", etc., can also be rewritten interchangeably.

[0623] In this disclosure, phrases such as "when A, B", "if A, then B", "B upon A", "B in response to A", "B based on A", "B during / while A", "B before A", "B at (the same time as) / on A", "B after A", "B since A", and "B until A" can be rewritten interchangeably. Furthermore, A and B can be appropriately replaced with nouns, gerunds, or other suitable expressions depending on the context. Additionally, the time difference between A and B can be approximately 0 (immediately following or immediately preceding). Moreover, a time offset can be applied to the time A occurs. For example, "A" can also be rewritten interchangeably with "before / after the time offset of A". This time offset (e.g., more than one symbol / slot) can be predetermined or determined by the UE based on the information it is notified of.

[0624] In this disclosure, timing, moment, time, time instance, arbitrary time unit (e.g., time slot, sub-time slot, symbol, subframe), period, opportunity, resource, etc., can also be overridden.

[0625] The inventions disclosed herein have been described in detail above. However, it will be apparent to those skilled in the art that the inventions disclosed herein are not limited to the embodiments described herein. The description herein is for illustrative purposes only and does not imply any limitation on the inventions disclosed herein.

Claims

1. A terminal, comprising: The receiving unit, when configured for group-based beam reporting, receives settings related to the number of reported channel measurement resources (CMRs); and The control unit, based on the aforementioned settings, controls the transmission of reports from multiple joint report groups, each containing multiple CMRs.

2. The terminal according to claim 1, wherein, The settings include P as the number of joint reporting groups and Q as the number of CMRs in each joint reporting group. The control unit selects P joint reporting groups, each containing Q CMRs.

3. The terminal according to claim 1, wherein, The multiple CMRs included in the multiple joint reporting groups are all different from each other.

4. The terminal according to claim 1, wherein, The multiple joint reporting groups include a first joint reporting group and a second joint reporting group. The number of CMRs included in the first joint reporting group is different from the number of CMRs included in the second joint reporting group.

5. A wireless communication method for a terminal, comprising: In the case of group-based beam reporting, the steps of receiving settings related to the number of reported Channel Measurement Resources (CMRs); and Based on the aforementioned settings, the steps for controlling the transmission of reports from multiple joint reporting groups, each containing multiple CMRs, are defined.

6. A base station, comprising: The transmitting unit, when configured for group-based beam reporting, transmits settings related to the number of reported Channel Measurement Resources (CMRs); and The receiving unit controls the reception of reports from multiple joint report groups, each containing multiple CMRs, which are sent based on the settings.

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