WO2023175785A1

WO2023175785A1 - Terminal, wireless communication method, and base station

Info

Publication number: WO2023175785A1
Application number: PCT/JP2022/011982
Authority: WO
Inventors: 祐輝松村; 聡永田; ウェイチースン; ジンワン; ランチン
Original assignee: 株式会社Ｎｔｔドコモ
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2023-09-21

Abstract

A terminal according to one aspect of the present disclosure comprises a reception unit that receives configuration information relating to group-based beam reporting, and a control unit that, when UL transmission using a plurality of panels including at least a first panel and a second panel is supported and the group-based beam reporting is to be performed, performs control so as to execute the group-based beam reporting that includes information on panel indices or panel pair indices.

Description

Terminal, wireless communication method and base station

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

In the Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) has been specified for the purpose of higher data rates, lower delays, etc. (Non-Patent Document 1). Additionally, LTE-Advanced (3GPP Rel. 10-14) has been specified for the purpose of further increasing capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Releases (Rel.) 8 and 9).

Successor systems to LTE (for example, also referred to as 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 or later) are also being considered. .

Rel. In 15 and 16 NR, a UE with group-based beam reporting enabled can only report two different beam indices for each reporting configuration. For this reason, Rel. 17, beam management-related enhancements will be made for user terminals (user terminals, user equipment (UE)) with multiple panels (multi-panels), multiple transmission/reception points (multi-transmission/reception points (TRP)), etc. It is being considered.

However, no progress has been made in considering how to configure a CSI report when expanding beam management. If this is not clarified, there is a possibility that appropriate communication between the TRP and the UE cannot be performed and communication throughput will decrease.

Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can suitably utilize a CSI report related to a group base beam report.

A terminal according to an aspect of the present disclosure includes a receiving unit that receives configuration information regarding group-based beam reporting, and supports UL transmission using a plurality of panels including at least a first panel and a second panel; When performing a group-based beam report, the control unit includes a control unit that controls the group-based beam report to include information regarding a panel index or a panel pair index.

According to one aspect of the present disclosure, a CSI report related to a group base beam report can be suitably used.

1A and 1B are diagrams illustrating an example of RRC information elements regarding CSI report configuration and CSI resource configuration. 2A and 2B are diagrams illustrating an example of RRC information elements regarding the NZP CSI-RS resource set and the CSI-SSB resource set. FIG. 3 is a diagram illustrating an example of RRC information elements regarding TCI status. FIGS. 4A and 4B are diagrams illustrating an example of single-panel UL transmission. 5A to 5C are diagrams showing examples of methods 1 to 3 of simultaneous UL transmission using multi-panels. FIG. 6 is an excerpt of the RRC information element "CSI-ReportConfig". FIG. 7 shows Rel. 15 is a diagram showing an example of a CSI report in NR. FIG. 8 shows Rel. 17 is a diagram showing an example of a CSI report for multi-group base beam reporting after NR. FIG. 9 is a diagram illustrating an example of a CSI report for multi-group base beam reporting according to the second embodiment. FIG. 10 is a diagram showing another example of the CSI report for multi-group base beam reporting according to the second embodiment. FIG. 11 is a diagram showing another example of the CSI report for multi-group base beam reporting according to the second embodiment. FIG. 12 is a diagram showing another example of the CSI report for multi-group base beam reporting according to the second embodiment. FIG. 13 is a diagram showing another example of the CSI report for multi-group base beam reporting according to the second embodiment. 14A and 14B are diagrams illustrating an example of the correspondence between panel pair indexes and panel indexes according to the second embodiment. 15A and 15B are diagrams showing other examples of CSI reports for multi-group base beam reporting according to the second embodiment. FIG. 16 is a diagram illustrating another example of the CSI report for multi-group base beam reporting according to the second embodiment. FIG. 17 is a diagram illustrating another example of the CSI report for multi-group base beam reporting according to the second embodiment. FIG. 18 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. FIG. 19 is a diagram illustrating an example of the configuration of a base station according to an embodiment. FIG. 20 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment. FIG. 21 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment. FIG. 22 is a diagram illustrating an example of a vehicle according to an embodiment.

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

The UE uses Channel State Information Reference Signal (CSI-RS), Synchronization Signal/Physical Broadcast Channel (SS/PBCH) blocks, and Synchronization Signal (SS). , DeModulation Reference Signal (DMRS), etc. may be used to measure the channel state.

CSI-RS resources include Non Zero Power (NZP) CSI-RS resources, Zero Power (ZP) CSI-RS resources, and CSI Interference Measurement (CSI-IM) resources. It may include at least one.

A resource for measuring signal components for CSI may be called a signal measurement resource (SMR) or a channel measurement resource (CMR). SMR (CMR) may include, for example, NZP CSI-RS resources for channel measurements, SSB, etc.

A resource for measuring interference components for CSI may be called an interference measurement resource (IMR). IMR may include, for example, at least one of NZP CSI-RS resources, SSB, ZP CSI-RS resources, and CSI-IM resources for interference measurement.

The SS/PBCH block is a block that includes a synchronization signal (for example, a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS)) and a PBCH (and a corresponding DMRS). It may also be called a block (SSB) or the like.

Note that CSI includes a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), and a SS /PBCH block resource indicator (SSBRI), layer indicator (LI), rank indicator (RI), L1-RSRP (reference signal reception in layer 1) Power (Layer 1 Reference Signal Received Power)), L1-RSRQ (Reference Signal Received Quality), L1-SINR (Signal to Interference plus Noise Ratio), L1-SNR (Signal to Noise Ratio), etc. even if it contains at least one of good.

CSI may have multiple parts. CSI part 1 may include information with a relatively small number of bits (eg, RI). CSI part 2 may include information with a relatively large number of bits (eg, CQI), such as information determined based on CSI part 1.

Additionally, CSI may be classified into several CSI types. The type of information to be reported, the size, etc. may differ depending on the CSI type. For example, the CSI type (also called type 1 CSI, single beam CSI, etc.) set for communication using a single beam, and the CSI type set for communication using multiple beams. type (also referred to as type II CSI, multi-beam CSI, etc.) may be defined. The usage of the CSI type is not limited to this.

CSI feedback methods include periodic CSI (P-CSI) reporting, aperiodic CSI (A-CSI) reporting, and semi-persistent CSI (SP -CSI)) reports are being considered.

The UE may be notified of the CSI measurement configuration information using upper layer signaling, physical layer signaling, or a combination thereof.

In the present disclosure, the upper layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

The MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), or the like. Broadcast information includes, for example, a master information block (MIB), a system information block (SIB), a minimum system information (RMSI), and other system information ( Other System Information (OSI)) may also be used.

The physical layer signaling may be, for example, downlink control information (DCI).

The CSI measurement configuration information may be configured using, for example, the RRC information element "CSI-MeasConfig." The CSI measurement configuration information may include CSI resource configuration information (RRC information element "CSI-ResourceConfig"), CSI report configuration information (RRC information element "CSI-ReportConfig"), and the like. CSI resource configuration information relates to resources for CSI measurements, and CSI reporting configuration information relates to how the UE implements CSI reporting.

FIGS. 1A and 1B are diagrams showing examples of RRC information elements regarding CSI report settings and CSI resource settings. In this example, an excerpt of fields (which may be called parameters) included in the information element is shown. 1A and 1B are ASN. 1 (Abstract Syntax Notation One) notation. Note that drawings regarding other RRC information elements (or RRC parameters) of the present disclosure are also described using similar notations.

As shown in FIG. 1A, the CSI report configuration information ("CSI-ReportConfig") includes channel measurement resource information ("resourcesForChannelMeasurement"). In addition, the CSI report setting information includes interference measurement resource information (for example, NZP CSI-RS resource information for interference measurement ("nzp-CSI-RS-ResourcesForInterference"), interference measurement CSI-IM resource information ("csi-IM -ResourcesForInterference") may also be included. These resource information correspond to an ID (Identifier) (“CSI-ResourceConfigId”) of CSI resource configuration information.

Note that one or more IDs of CSI resource configuration information (which may be referred to as CSI resource configuration IDs) corresponding to each resource information may have the same value, or may have different values. .

As shown in FIG. 1B, the CSI resource configuration information (``CSI-ResourceConfig'') includes a CSI resource configuration information ID, CSI-RS resource set list information (``csi-RS-ResourceSetList''), and a resource type (``resourceType''). It may also include. The CSI-RS resource set list includes NZP CSI-RS and SSB information for measurement ("nzp-CSI-RS-SSB") and CSI-IM resource set list information ("csi-IM-ResourceSetList"). may include at least one of the following.

The resource type represents the time domain behavior of this resource configuration, and can be set to "aperiodic," "semi-persistent," or "periodic." For example, the corresponding CSI-RSs may be called A-CSI-RS, SP-CSI-RS, and P-CSI-RS.

Note that the channel measurement resource may be used, for example, to calculate CQI, PMI, L1-RSRP, etc. Further, the interference measurement resource may be used to calculate L1-SINR, L1-SNR, L1-RSRQ, and other interference-related indicators.

When interference measurements are performed with CSI-IM, each CSI-RS for channel measurement is configured to be a CSI-IM resource from a resource perspective based on the order of CSI-RS resources and CSI-IM resources in the corresponding resource set. May be associated.

"nzp-CSI-RS-SSB" is NZP CSI-RS resource set list information ("nzp-CSI-RS-ResourceSetList") and SSB resource set list information for CSI measurement ("csi-SSB-ResourceSetList") May include. These list information correspond to one or more NZP CSI-RS resource set IDs (``NZP-CSI-RS-ResourceSetId'') and CSI-SSB resource set IDs (``CSI-SSB-ResourceSetId''), respectively. , may be used to identify the resource to be measured.

The NZP CSI-RS resource set list information ("nzp-CSI-RS-ResourceSetList") is the maximum number of NZP CSI-RS resource sets per CSI resource configuration ("maxNrofNZP-CSI-RS-ResourceSetsPerConfig"). It may also include an RS resource set ID ("NZP-CSI-RS-ResourceSetId"). The maximum number of NZP CSI-RS resource sets per CSI resource configuration ("maxNrofNZP-CSI-RS-ResourceSetsPerConfig") is up to 16 if the resource type is "periodic", otherwise may be 1 (if the resource type is "semi-persistent" or "periodic").

The SSB resource set list information for CSI measurement ("csi-SSB-ResourceSetList") is the maximum number of SSB resource sets for CSI measurement per CSI resource configuration ("maxNrofCSI-SSB-ResourceSetsPerConfig"). It may also include a resource set ID (“CSI-SSB-ResourceSetId”). The maximum number of SSB resource sets for CSI measurement per CSI resource configuration (“maxNrofCSI-SSB-ResourceSetsPerConfig”) may be one.

The CSI-IM resource set list information (``csi-IM-ResourceSetList'') contains the CSI-IM resource set ID (``CSI -IM-ResourceSetId"). The maximum number of CSI-IM resource sets per CSI resource configuration ("maxNrofCSI-IM-ResourceSetsPerConfig") is up to 16 if the resource type is "periodic" and 1 otherwise. There may be.

FIGS. 2A and 2B are diagrams showing examples of RRC information elements regarding the NZP CSI-RS resource set and the CSI-SSB resource set.

As shown in FIG. 2A, NZP CSI-RS resource set information (“NZP-CSI-RS-ResourceSet”) includes an NZP CSI-RS resource set ID and one or more NZP CSI-RS resource IDs (“NZP- CSI-RS-ResourceId").

The NZP CSI-RS resource information (``NZP-CSI-RS-Resource'') includes the NZP CSI-RS resource ID and the ID (``TCI-stateId'') of the transmission configuration indication state (TCI state). It may also include. The TCI state will be described later.

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

FIG. 3 is a diagram illustrating an example of RRC information elements regarding TCI status.

The TCI state is information regarding quasi-co-location (QCL) of channels or signals, and may also be called spatial reception parameters, spatial relation information, etc. TCI states may be set or specified to the UE on a per-channel or per-signal basis.

As shown in FIG. 3, the TCI state information ("TCI-State") may include a TCI state ID and one or more QCL information ("QCL-Info"). The QCL information may include at least one of information regarding the reference signal of the QCL source (RS-related information (“referenceSignal”)) and information indicating the QCL type (QCL type information (“qcl-Type”)). The RS related information may include information such as an RS index (for example, NZP CSI-RS resource ID, SSB index), a serving cell index, and a BWP (Bandwidth Part) index where the RS is located.

For at least one of a signal and a channel (expressed as a signal/channel), the UE performs reception processing (e.g., reception, demapping, demodulation, At least one of decoding, receive beam determination, etc.), transmission processing (eg, at least one of transmission, mapping, modulation, encoding, transmit beam determination, etc.), etc. may be controlled.

As shown in FIG. 2A, for P-CSI-RS, the associated TCI state may be set by RRC. Note that for P-CSI-RS, SP-CSI-RS, and A-CSI-RS, the related TCI states may be determined based on upper layer signaling, physical layer signaling, or a combination thereof.

Rel. From 17/18 onwards, it is assumed that UL transmission using multiple UE panels will be supported.

(Single panel transmission)
At least one of the following transmission methods A and B (single panel UL transmission methods A and B) may be applied to the single panel UL transmission method or the single panel UL transmission method candidate. Note that in the present disclosure, panel/UE panel may be read as a UE capability value set (for example, UE capability value set) reported for each UE capability.

[Transmission method A: Single panel single TRP UL transmission]
Rel. 15 and Rel. In 16, a transmission scheme is used in which the UE transmits UL for one TRP at one time from only one beam and panel (FIG. 4A).

[Transmission method B: Single panel multi-TRP UL transmission]
Rel. In 17, it is considered to perform UL transmission from only one beam and panel at one time and repeatedly transmit to multiple TRPs (FIG. 4B). In the example of FIG. 4B, the UE transmits PUSCH from panel #1 to TRP #1 (switching beams and panels), and then transmits PUSCH from panel #2 to TRP #2. The two TRPs are connected via an ideal backhaul.

(Multi-panel transmission)
Rel. From 18 onwards, simultaneous UL transmission using multiple panels (e.g., simultaneous multi-panel UL transmission (SiMPUL)) for one or more TRPs may be supported to improve UL throughput/reliability. It is being considered. Furthermore, multi-panel UL transmission systems are being considered for predetermined UL channels (for example, PUSCH/PUCCH).

For multi-panel UL transmission, for example, up to X (eg, X=2) and up to Y (eg, Y=2) panels may be supported. In multi-panel UL transmission, if UL precoding instructions for PUSCH are supported, codebooks of existing systems (eg, Rel. 16 and earlier) may be supported for multi-panel simultaneous transmission. When considering single DCI and multi-DCI based multi-TRP operations, the number of layers is at most x (e.g., x=4) in all panels, and the number of codewords (CW) is at most y in all panels (e.g., y=4). 2) may be used.

At least one of the following methods 1 to 3 (multi-panel UL transmission methods 1 to 3) is being considered as a multi-panel UL transmission method or a multi-panel UL transmission method candidate. Only one of transmission methods 1 to 3 may be supported. Multiple schemes are supported, including at least one of transmission schemes 1 to 3, and one of the multiple transmission schemes may be configured on the UE.

[Transmission method 1: Coherent multi-panel UL transmission]
Multiple panels may be synchronized with each other. All layers are mapped to all panels. Multiple analog beams are directed. The SRS Resource Indicator (SRI) field may be expanded. This scheme may use up to 4 layers for UL.

In the example of FIG. 5A, the UE maps one codeword (CW) or one transport block (TB) to L layers (PUSCH(1,2,...,L)) from each of the two panels. Send L layers. Panel #1 and panel #2 are coherent. Transmission method 1 can obtain a gain due to diversity. The total number of layers in the two panels is 2L. If the maximum total number of layers is 4, the maximum number of layers in one panel is 2.

[Transmission method 2: Non-coherent multi-panel UL transmission of one codeword (CW) or transport block (TB)]
Multiple panels do not need to be synchronized. Different layers are mapped to different panels and one CW or TB for PUSCH from multiple panels. A layer corresponding to one CW or TB may be mapped to multiple panels. This transmission scheme may use up to 4 layers or up to 8 layers for UL. If supporting up to 8 layers, this transmission scheme may support one CW or TB with up to 8 layers.

In the example of FIG. 5B, the UE divides 1 CW or 1 TB into k layers (PUSCH (1, 2, ..., k)) and L - k layers (PUSCH (k+1, k+2, ..., L)). , k layers are transmitted from panel #1, and L−k layers are transmitted from panel #2. Transmission method 2 can obtain gains due to multiplexing and diversity. The total number of layers in the two panels is L.

[Transmission method 3: 2 CW or TB non-coherent multi-panel UL transmission]
Multiple panels do not need to be synchronized. Different layers are mapped to different panels and two CWs or TBs for PUSCH from multiple panels. A layer corresponding to one CW or TB may be mapped to one panel. Layers corresponding to multiple CWs or TBs may be mapped to different panels. This transmission scheme may use up to 4 layers or up to 8 layers for UL. If supporting up to 8 layers, this transmission scheme may support up to 4 layers per CW or TB.

In the example of FIG. 5C, the UE maps CW #1 or TB #1 to k layers (PUSCH (1, 2, ..., k)) among 2 CWs or 2 TBs, and maps CW #2 or TB #2 to k layers (PUSCH (1, 2, ..., k)). is mapped to L−k layers (PUSCH (k+1, k+2, . . . , L)), k layers are transmitted from panel #1, and L−k layers are transmitted from panel #2. Transmission method 3 can obtain gains due to multiplexing and diversity. The total number of layers in the two panels is L.

In each of the above transmission methods, the base station may set or instruct panel-specific transmission for UL transmission using the UL TCI or panel ID. UL TCI (UL TCI status) is Rel. It may be based on signaling similar to the DL beam indication supported in X.15. The panel ID may be implicitly or explicitly applied to the transmission of at least one of the target RS resource or target RS resource set, PUCCH, SRS, and PRACH. If the panel ID is explicitly notified, the panel ID may be configured in at least one of the target RS, target channel, and reference RS (eg, DL RS resource configuration or spatial relationship information).

In one or more of the transmission methods/modes described above, multi-panel UL transmission (for example, simultaneous multi-panel UL transmission (SiMPUL)) is being considered.

(UE ability value set)
Rel. From 17 NR onwards, reporting a list of UE capability value sets (eg, UE capability value sets) is supported in a UE capability report (eg, UE capability report). The UE capability set may refer to the panels that the UE supports/utilizes. The UE capability value set may be read as UE capability value (for example, UE capability value).

Rel. Each UE capability set in 17 may be configured based on the maximum number of SRS ports supported. For example, if the maximum number of SRS ports is X, the UE reports X (eg, X=4) UE capability value sets.

UE-initiated panel activation and selection is possible by the UE reporting a list of UE capability value sets. The correspondence between the reported CSI-RS/SSB resource index (CRI/SSBRI) and one of the UE capability value sets in the reported list is determined by the UE and notified to the NW in the beam reporting instance. It's okay.

Rel. From 17 NR onwards, it is supported for the UE to report a list of UE capability value sets to facilitate UE-initiated panel activation and selection. Each UE capability set included in the list is configured with the maximum number of supported SRS ports, and any two UE capability sets may be configured differently (or separately). The UE capability value set may be set in common for multiple (or all) BWP/CCs in the same band, or set in common for multiple (or all) BWP/CCs in the same band combination (BC). may be done.

Rel. Each of the 17 UE capability sets is configured with the maximum number of SRS ports supported. Also, Rel. From 18 onwards, the UE capability set includes, in addition to (or instead of) the maximum number of SRS ports supported, maximum UL rank, maximum number of beams, maximum number of SRS resource sets, maximum number of SRS resources, per set. It may consist of at least one of the maximum number of SRS resources, EIRP, and transmission power related capabilities.

If multiple (eg, two) UE capability sets are configured differently, it may mean that any two capability sets have different maximum supported SRS port numbers. Note that a plurality of (for example, two) UE capability value sets may have the same capability. For example, two UE capability sets may have the same maximum supported SRS port number. In this case, two UE capability sets with the same maximum number of supported SRS ports may have other parameters (eg, EIRP) configured differently.

(beam management)
Rel. 15 In NR, beam management (BM) methods have been studied. In the beam management, beam selection is performed based on the L1-RSRP reported by the UE. Changing (switching) the beam of a signal/channel may correspond to changing the TCI state and/or QCL assumption of the signal/channel.

The UE may report (transmit) measurement results for beam management using the Physical Uplink Control Channel (PUCCH) or the Physical Uplink Shared Channel (PUSCH). . The measurement result may be, for example, CSI including at least one of L1-RSRP, L1-RSRQ, L1-SINR, L1-SNR, and the like.

Measurements reported for beam management (e.g., CSI) may be referred to as beam measurements, beam measurement reports, beam reports, beam report CSI, etc. .

CSI measurements for beam reporting may include interference measurements. The UE may use resources for CSI measurements to measure channel quality, interference, etc., and derive beam reports.

The beam report may include the results of at least one of channel quality measurement and interference measurement. Channel quality measurement results may include, for example, L1-RSRP. The interference measurement results may include L1-SINR, L1-SNR, L1-RSRQ, other interference-related metrics (eg, any metrics other than L1-RSRP), and the like.

CSI reporting may be performed based on CSI reporting settings configured in upper layer parameters. FIG. 6 shows Rel. This is an example of the RRC information element “CSI-ReportConfig” in No. 16. FIG. 6 is an excerpt of another part of the same CSI report configuration information (CSI-ReportConfig) as in FIG. 1A.

The CSI report setting information may include "report quantity" (which may be represented by the RRC parameter "reportQuantity"), which is information on parameters to be reported in one report instance (for example, one CSI). The amount of reporting is based on the ASN "choice". Defined as one object type. Therefore, one of the parameters defined as the reporting amount (cri-RSRP, ssb-Index-RSRP, etc.) is set.

A UE whose upper layer parameters included in the CSI reporting setting information (for example, the RRC parameter "groupBasedBeamReporting" regarding group-based beam reporting) is set to disabled, sets the CSI reporting setting information for each report setting. Beam measurement resource IDs (e.g., SSBRI, CRI) with different numbers of included upper layer parameters (e.g., RRC parameter "nrofReportedRS" indicating the number of RSs to be reported) and measurement results corresponding to each ID (e.g., L1 -RSRP) may be included in a beam report (one report instance).

A UE for which groupBasedBeamReporting is enabled reports CRI/SSBRI (for example, CRI/SSBRI of one group) on a group basis for each report setting. The group includes multiple (eg, two) CRI/SSBRIs. Multiple (eg, two) CRI/SSBRIs may be meant to be received by the UE simultaneously.

For example, a UE with groupBasedBeamReporting enabled may have two different beam measurement resource IDs (e.g. CRI/SSBRI) and two measurement results corresponding to each ID (e.g. L1-RSRP) may be included in the beam report. The two beam measurement resources (CSI-RS resource, SSB resource) may be received by the UE simultaneously using one spatial domain receive filter, or simultaneously using multiple simultaneous spatial domain receive filters. may be done.

Furthermore, the NZP CSI-RS resource set information shown in FIG. 2A may include information regarding repetition of resources within the resource set. The information regarding the repetition may indicate 'on' or 'off', for example. Note that 'on' may be expressed as 'enabled' or 'valid', and 'off' may be expressed as 'disabled or invalid'.

For example, for a resource set with repetition set to 'on', the UE may assume that the resources in the resource set were transmitted using the same downlink spatial domain transmission filter. good. In this case, the UE may assume that the resources in the resource set were transmitted using the same beam (eg, from the same base station using the same beam).

For resource sets with repetition set to 'off', the UE shall not (or may not) assume that the resources within the resource set were transmitted using the same downlink spatial domain transmit filter. control) may also be performed. In this case, the UE may assume that the resources in the resource set are not transmitted using the same beam (transmitted using different beams). That is, for a resource set whose repetition is set to 'off', the UE may assume that the base station is performing beam sweeping.

Rel. 15. In NR, cri-RSRP and ssb-Index-RSRP among the reported amounts are related to beam management. A UE configured with cri-RSRP as the reporting amount reports the CRI and the L1-RSRP corresponding to the CRI. A UE configured with ssb-Index-RSRP as the reporting amount reports the SSBRI and the L1-RSRP corresponding to the SSBRI.

FIG. 7 shows Rel. 15 is a diagram showing an example of a CSI report in NR. FIG. 7 shows Rel. 15 shows the mapping order of CSI fields included in one CSI report (nth CSI report #n) for CSI/RSRP or SSBRI/RSRP reporting, as defined in Section 15.

The CSI report in FIG. 7 can include one or more sets of CRI/SSBRI and RSRP. The number of these sets may be set by an upper layer parameter (eg, RRC parameter "nrofReportedRS") indicating the number of reference signal resources to be reported.

For L1-RSRP reporting, if nrofReportedRS is set to 1 (value 'n1'), RSRP# is a field of a predetermined number of bits (e.g., m bits) indicating the largest measured L1-RSRP. 1 is included in the CSI report. Rel. 15 NR, m=7.

For L1-RSRP reporting, if nrofReportedRS is set to greater than 1 or groupBasedBeamReporting is set to enabled, the UE utilizes differential L1-RSRP-based reporting. Specifically, the UE selects RSRP #1 indicating the L1-RSRP with the largest measured value and the largest measured value for the kth (k=2, 3, 4 in FIG. 7) largest L1-RSRP. Differential RSRP#k calculated by referring to (for example, as a difference from the measured value) is included in the same CSI report (reporting instance). Here, the differential RSRP#k may be a field of fewer bits (for example, n bits) than the predetermined number. Rel. 15 NR, n=4.

For example, for each group, there is a 7-bit absolute RSRP value for the first beam (ranging from -140 to -44 dBm using a 1 dB step size) and a 4-bit differential RSRP value for the second beam. Reported.

Note that when groupBasedBeamReporting is set to be valid, the UE includes RSRP #1 and differential RSRP #2 in the same CSI report.

CRI/SSBRI#k in FIG. 7 is a field indicating the CRI/SSBRI corresponding to RSRP#k or differential RSRP#k (included when reporting RSRP#k or differential RSRP#k).

In addition, Rel. For NR of 16 or higher, nrofReportedRS may have a value of 4 or more, or may be 4 or more. A CSI report may include four or more sets of CRI/SSBRI and RSRP. The above m, n, etc. are not limited to 7 and 4, respectively.

Also, Rel. For NR 16 and above, L1-SINR reporting may be performed. The content of the above-described L1-RSRP report in which RSRP is replaced with SINR may be applied to the L1-SINR report. Note that in this case, settings/parameters for SINR may be different from settings/parameters for RSRP; for example, the above nrofReportedRS may be replaced with nrofReportedRSForSINR indicating the number of reference signal resources to be reported for SINR.

For L1-RSRP computation, the UE may be configured with CSI-RS resource settings of up to 16 CSI-RS resource sets, including up to 64 resources in each resource set. The total number of different CSI-RS resources across all resource sets may be 128 or less.

For L1-SINR computation, in the channel measurement, the UE uses the CSI-RS of up to 16 CSI-RS resource sets, including a total of up to 64 CSI-RS resources or up to 64 SS/PBCH blocks. RS resource settings may be configured.

For a UE configured with CSI aperiodic trigger state list information (upper layer parameter "CSI-AperiodicTriggerStateList"), if one resource setting linked to CSI-ReportConfig has multiple aperiodic resource sets, Only one of the aperiodic CSI-RS resources of the resource setting may be associated with the trigger condition. At this time, the UE may be configured in the upper layer for each trigger state and resource setting to select one CSI-IM/NZP CSI-RS resource set from the resource settings.

The UE determines whether the report amount (upper layer parameter reportQuantity) is "none", "cri-RI-CQI", "cri-RSRP", "ssb-Index-RSRP", "cri-SINR" or "ssb-Index-SINR". In the channel measurement resource setting of CSI-ReportConfig set to .

A CSI-ReportConfig in which the report amount (upper layer parameter reportQuantity) is set to "cri-RSRP", "cri-SINR", or "none" is set in the UE, and the CSI-ReportConfig has the upper layer parameter resourceType set to "cri-RSRP", "cri-SINR", or "none". When linking to a resource setting configured as "periodic", the UE does not need to assume that more than 16 CSI-RS resources are configured in the CSI-RS resource set included in the resource setting.

The report quantity (upper layer parameter reportQuantity) is "cri-RSRP", "cri-RI-PMI-CQI", "cri-RI-i1", "cri-RI-i1-CQI", "cri-RI" to the UE. -CQI", "cri-RI-LI-PMI-CQI", or "cri-SINR" is set when CSI-ReportConfig is set, and two or more resources for channel measurement are set in the corresponding resource set. , the UE may derive CSI parameters other than the CRI based on the reported CRI. Here, CRI k (k≧0) is the k+1st entry set in the related nzp-CSI-RS-Resources in the NZP-CSI-RS-ResourceSet for the corresponding channel measurement, and the csi-IM- The k+1st entry of the related csi-IM-Resource of the ResourceSet or the k+1st entry of the related nzp-CSI-RS-Resources of the corresponding NZP-CSI-RS-ResourceSet for interference measurement (in CSI-ReportConfig) (if reportQuantity is set to "cri-SINR"). If two CSI-RS resources are configured, each resource may include up to 16 CSI-RS ports. If three or more and eight or less CSI-RS resources are configured, each resource may include a maximum of eight CSI-RS ports.

If the UE is configured with a CSI-ReportConfig in which the report amount (upper layer parameter reportQuantity) is set to "ssb-Index-RSRP", SSBRI may be reported. Here, SSBRI k (k≧0) may correspond to the k+1-th entry set in the related csi-SSB-ResourceList in the corresponding CSI-SSB-ResourceSet.

If a CSI-ReportConfig in which the report amount (upper layer parameter reportQuantity) is set to "ssb-Index-SINR" is configured in the UE, L1-SINR may be derived based on the reported SSBRI. Here, SSBRI k (k≧0) is the set k+1st entry of the related csi-SSB-ResourceList in the CSI-SSB-ResourceSet for the corresponding channel measurement and the related It may correspond to the k+1st entry of csi-IM-Resource or the k+1st entry of related nzp-CSI-RS-Resources of the corresponding NZP-CSI-RS-ResourceSet for interference measurement.

(Extended group base beam report)
For future wireless communication systems (e.g. Rel. 17 and later), user terminals (User Equipment (UE)) with multiple panels (multi-panels), multiple transmission/reception points (Multi-Transmission/Reception Points), etc. Beam management-related enhancements (e.g., beam reporting suitable for multiple TRPs, which may be referred to as enhanced group-based beam reporting) are being considered for TRP) and the like.

The above-mentioned groupBasedBeamReporting is suitable when multi-TRP transmission, multi-panel reception, etc. are applied because one group including multiple (for example, two) CRI/SSBRI can be reported in one report. For example, it can be used to report the best beam of TRP1 as RSRP#1 and the best beam of TRP2 as differential RSRP#2.

Rel. In 15 and 16, a UE with group-based beam reporting enabled can only report two different CRI/SSBRIs (one group) for each reporting configuration. For this reason, Rel. 17, it is supported to increase the number of groups that can be reported by group-based beam reporting to be greater than one.

For example, two channel measurement resource sets (eg, CMR set) may be configured/triggered as periodic/semi-persistent/periodic resource types. The two channel measurement resource sets (eg, CMR set) may be, for example, two CSI-SSB-resource sets/two NZP-CSI-RS-resource sets. The UE may be configured to be able to report up to four groups of CRI/SSBRI. Note that the number of reportable groups (or the number of candidates 1/2/3/4) may be set by upper layer parameters.

Each group may have multiple (eg, two) CRI/SSBRI, and the CRI/SSBRI of each group may be selected from two CSI resource sets for reporting settings (eg, report setting). Also, two CRI/SSBRIs in each group may mean that the UE can receive them simultaneously (eg, receive them simultaneously with one spatial domain receive filter).

FIG. 8 is a diagram showing an example of a CSI report when performing an extended group base beam report. FIG. 8 shows the mapping order of CSI fields included in one report (eg, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

The CSI report may include a maximum of X resource groups (for example, X=4). Each group includes multiple (eg, two) CRI/SSBRIs. Here, a case is shown in which CRI or SSBRI #1 and CRI or SSBRI #2 are reported as each resource group.

A resource set indicator (for example, Resource set indicator) may be included in the CSI field. The value of the resource set indicator may indicate the channel measurement resource set for 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 indicates the first or second channel measurement resource set, respectively, from which the CRI or SSBRI #1 of the first resource group may be reported. . All remaining resource groups (eg, if there are other resource groups to be reported) follow the same mapping order as the first resource group. For example, the CRI or SSBRI #1 of all remaining resource groups may be reported (or selected) from the channel measurement resource set indicated by the resource set indicator.

That is, CRI or SSBRI #1 of each group is reported (or selected) from the resource set indicated by the resource set indicator (e.g., Resource set indicator), and CRI or SSBRI #2 is reported from other resource sets. (or selection). Thus, in every resource group, CRI or SSBRI #1 and CRI or SSBRI #2 may be reported from different channel measurement resource sets.

Additionally, the RSRP corresponding to the CRI or SSBRI of each resource group is reported. For example, the RSRP of a specific group's CRI or SSBRI may be reported, and the difference between the other RSRP and the RSRP of the specific group's CRI or SSBRI may be reported. The RSRP of the CRI or SSBRI of the specific group may be the RSRP of the CRI or SSBRI #1 of the first resource group.

Enhanced group-based beam reporting may be configured (or enabled/activated) by a predetermined upper layer parameter (for example, groupBasedBeamReporting-r17). Alternatively, enhanced group-based beam reporting may be determined to be valid if an upper layer parameter regarding the number of groups to report (eg, nrofReportedGroups-r17) is set.

As mentioned above, Rel. It is also assumed that multi-panel UL simultaneous transmission using multi-TRP (single DCI base/multi-DCI base) will be performed in Rel. 18 and later (for example, Rel. 18 MIMO). In this case, it is also possible to report information regarding the panel (eg, panel index/UE capability value set) corresponding to each channel measurement resource (eg, CRI/SSBRI)/RSRP reported in the CSI report.

However, in group-based beam reporting/extended group-based beam reporting, issues arise as to whether or not panel-related information is to be reported, and how to set/control the reporting.

Therefore, the present inventors studied whether or not panel information is reported in group base beam reporting/extended group base beam reporting, and the control method when reporting, and came up with the present embodiment.

Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings. The wireless communication methods according to each embodiment may be applied singly or in combination.

In the present disclosure, "A/B", "at least one of A and B", and "A and B" may be read interchangeably. In the present disclosure, "A/B/C", "at least one of A, B, and C", and "A, B, and C" may be read interchangeably.

In the present disclosure, cell, serving cell, CC, carrier, BWP, DL BWP, UL BWP, active DL BWP, active UL BWP, and band may be read interchangeably.

In the present disclosure, index, ID, indicator, and resource ID may be read interchangeably.

In the present disclosure, the terms "support," "control," "operate," and "operate" may be interchanged.

Note that in this disclosure, a panel (receiving panel), Uplink (UL) transmitting entity, TRP, spatial relationship, control resource set (COntrol REsource SET (CORESET)), PDSCH, codeword, base station, antenna port (for example, demodulation reference signal (DeModulation Reference Signal (DMRS) port), antenna port group (e.g., DMRS port group), group (e.g., Code Division Multiplexing (CDM)) group, reference signal group, CORESET group, CORESET pool), reference signal settings, reference signal set settings, etc. may be read interchangeably.

Panel Identifier (ID) and panel may be read interchangeably. TRP ID and TRP may be read interchangeably.

Note that in the present disclosure, groups, sets, clusters, panels, groups related to (reported) beams, etc. may be read interchangeably.

In the following embodiments, the beam index/beam ID may be read as, for example, CRI/SSBRI. Further, RSRP/SINR may be replaced with any beam-related measurement result.

Additionally, the CSI-RS-related names may be replaced with corresponding SSB-related names. For example, CSI-RS resources may be replaced with SSB resources. In other words, CSI-RS may be replaced with CSI-RS/SSB, and CRI may be replaced with CRI/SSBRI.

In addition, in this disclosure, a "reception panel" refers to an RS group, a TRP index, a CORESET pool index, an RS group configured for group-based beam reporting, a TCI state (or TCI) group, a QCL assumption (or a QCL ) group, beam group.

In addition, in the present disclosure, "at the same position" may be read as "at the same i-th position", "corresponding to the same TRP", etc. Note that in the present disclosure, "i-th" may mean included in a certain CSI report, or may mean included in a certain group of a certain CSI report. Good too.

In this disclosure, "set", "CMR set", "CMR resource set", etc. may be read interchangeably. Furthermore, in the present disclosure, "SSBRI/CRI" and "CMR index" may be read interchangeably. Furthermore, in the present disclosure, "RSRP/SINR" may be mutually read as "L1-RSRP/L1-SINR/L3-RSRP/L3-SINR." Note that L3 may also mean layer 3.

(Wireless communication method)
<First embodiment>
In the first embodiment, a case will be described in which panel index reporting is not supported in group-based beam reporting.

In the following description, the panel index may be read as a UE capability value set, UE capability value, capability value set, capability set index (for example, capability set index), or capability index (for example, capability index). The group-based beam report is the extended group-based beam report, or the Rel. 17 (or Rel. 17 or later).

The UE controls the panel index not to be reported in the group base beam report. The base station may be controlled not to instruct/set/activate/enable panel index reporting in group-based beam reporting.

Reporting of panel index in group-based beam reporting may not be supported, and reporting of panel index in beam reporting other than group-based beam reporting (eg, normal beam reporting) may be supported. In this case, the UE may not assume/expect panel index reporting if regular beam reporting is enabled and at the same time group-based beam reporting is enabled.

When including information regarding the panel index (or UE capability value set) in the CSI report, the capability index (or capability set index) may be indicated/set. The capability index (or capability set index) is, for example, cri-RSRP-Capability(set)Index, SSB-Index-RSRP-Capability(set)Index, cri-SINR-Capability(set)Index, and SSB-Index- It may be at least one of SINR-Capability(set)Index. If reporting of panel index is not supported in group-based beam reporting, the UE may assume that no capability index is indicated in the reporting amount even if group-based beam reporting is enabled.

<Second embodiment>
In the second embodiment, a case will be described in which panel index reporting is supported in group-based beam reporting.

In group-based beam reporting, if reporting of panel index information (hereinafter also referred to as panel index information) is supported, the UE controls the reporting of CSI including the panel index based on the configuration information regarding group beam reporting. It's okay. For example, the UE transmits at least one of first information instructing to configure/enable/activate group-based beam reporting and second information instructing to configure/enable/activate panel index reporting. You may receive it. The base station may direct configuration/enablement/activation of group-based beam reporting including panel index information by the first information/second information.

Both the first information and the second information may be called setting information, or either one of the pieces of information may be called setting information. For example, a configuration may be adopted in which panel index information is always reported (in this case, the second information may not be necessary).

The first information and the second information may each be transmitted as upper layer parameters. The first information and the second information may be included in the same RRC information element (for example, CSI-ReportConfig), or may be included in different RRC information elements.

The first information may be set/enabled/activated, for example, by an upper layer parameter regarding group-based beam reporting (for example, groupBasedBeamReporting-r17). Alternatively, the first information may correspond to an upper layer parameter regarding the number of groups to report (eg, nrofReportedGroups-r17).

The second information may be included in an upper layer parameter related to CSI report settings (for example, report quantity (for example, reportQuantity) in CSI-reporting setting). For example, the second information may include cri-RSRP-Capability(set)Index, SSB-Index-RSRP-Capability(set)Index, cri-SINR-Capability(set)Index, and SSB-Index-SINR-Capability(set )Index.

At least one of the following options 2-1 to 2-6 may be applied as panel index information included in the group base beam report.

[Option 2-1]
The UE may report panel index per CRI/SSBRI.

For example, the UE may report one panel index information for each reporting CRI/SSBRI in one beam report. That is, the CSI report may include information on panel indexes corresponding to each CRI/SSBRI.

FIG. 9 is a diagram showing an example of a CSI report when group-based beam reporting/panel index reporting is set in beam reporting. FIG. 9 shows the mapping order of CSI fields included in one report (eg, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

FIG. 9 shows an example of a CSI report including CSI fields (new fields) for panel index information corresponding to the CRI/SSBRI of each resource group. For example, Rel. A new field corresponding to panel index information may be added to the CSI report supported by X.17 (see, for example, FIG. 8).

The number of resource groups to be reported may be instructed/set from the base station to the UE by upper layer signaling, and the number of candidate resource groups to be reported may be, for example, 1, 2, 3, or 4. . The panel index information to be included in the CSI report may be determined based on the resource group (or CRI/SSBRI corresponding to each resource group) that performs the report. In other words, the CSI report may include only the panel index corresponding to the CRI/SSBRI of the resource group to be reported.

The order of mapping between new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 9.

Note that if group-based beam reporting is not configured (or not enabled/activated) and panel index information is included in beam reports other than group-based beam reporting, panel index will be reported for each CRI/SSBRI. It's okay. That is, the panel index may be included for each CRI/SSBRI both when including the panel index in the group-based beam report and when including the panel index in the beam report when the group-based beam report is not set.

As a result, panel index reporting can be shared between normal beam reporting and group-based beam reporting.

[Option 2-2]
The UE may report the panel index for each resource group.

For example, the UE may report one panel index for each reporting resource group in one beam report. That is, the CSI report may include information on panel indexes corresponding to each resource group.

FIG. 10 is a diagram showing an example of a CSI report when group-based beam reporting/panel index reporting is set in beam reporting. FIG. 10 shows the mapping order of CSI fields included in one report (for example, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

FIG. 10 shows an example of a CSI report including CSI fields (new fields) for panel index information corresponding to each resource group. For example, Rel. A new field corresponding to panel index information may be added to the CSI report supported by X.17 (see, for example, FIG. 8).

Here, the first resource group (CRI/SSBRI #1 and CRI/SSBRI #2) corresponds to the panel index of the first resource group. Similarly, the second to fourth resource groups (CRI/SSBRI #1 and CRI/SSBRI #2) correspond to the panel indexes of the second to fourth resource groups, respectively.

The number of resource groups to be reported may be instructed/set from the base station to the UE by upper layer signaling, and the number of candidate resource groups to be reported may be, for example, 1, 2, 3, or 4. . Panel index information to be included in the CSI report may be determined based on the resource group that performs the report. In other words, the CSI report may include only the panel index corresponding to the resource group that reports.

The order of mapping between new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 10.

Note that if group-based beam reporting is not configured (or not enabled/activated) and panel index information is included in beam reports other than group-based beam reporting, panel index will be reported for each CRI/SSBRI. It's okay. That is, when including a panel index in a group-based beam report, and when including a panel index in a beam report when group-based beam reporting is not configured, the reporting mechanism for panel index information (for example, when a panel index corresponds to a parameter ) may be different.

[Option 2-3]
The UE may report a panel index for each resource set (eg, CMR set) for channel measurements.

《Option 2-3-1》
A first panel index may correspond to a first channel measurement resource set (for example, a first CMR set), and a second panel index may correspond to a second CMR set. In this case, the resource set index field determines whether the first CMR set or the second CMR set is related to CRI/SSBRI #1 of the first/second/third/fourth resource group. may also be shown.

For example, assume that the resource set index field indicates that the first CMR set is related to CRI/SSBRI #1 of the first/second/third/fourth resource group. In this case, the first panel index corresponds to the CRI/SSBRI #1 of the first/second/third/fourth resource group, and the CRI/SSBRI# of the first/second/third/fourth resource group 2 may correspond to the second panel index.

On the other hand, assume that the resource set index field indicates that the second CMR set is related to CRI/SSBRI #1 of the first/second/third/fourth resource group. In this case, the second panel index corresponds to the CRI/SSBRI #1 of the first/second/third/fourth resource group, and the CRI/SSBRI# of the first/second/third/fourth resource group 2 may correspond to the first panel index.

FIG. 11 is a diagram showing an example of a CSI report when group-based beam reporting/panel index reporting is set in beam reporting. FIG. 11 shows the mapping order of CSI fields included in one report (for example, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

FIG. 11 shows an example of a CSI report that includes CSI fields (new fields) for panel index information that respectively correspond to channel measurement resource sets (for example, first CMR set/second CMR set). For example, Rel. A new field corresponding to panel index information may be added to the CSI report supported by X.17 (see, for example, FIG. 8).

Here, a case is shown in which the resource set indicator field indicates that the first CMR set is related to CRI/SSBRI #1 of the first/second/third/fourth resource group. .

The mapping order of new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 11.

The above configuration can be suitably applied in a case where one panel is used for one CMR set (or one TRP) and the same panel is used for the same TRP beam.

Note that the first channel measurement resource set (for example, the first CMR set) may be the CMR set with the lower (or higher) ID of the two CMR sets.

Alternatively, the first channel measurement resource set (for example, the first CMR set) may correspond to the CRM set configured in the first entry of the list of CMR sets configured in the upper layer parameters. . The second entry in the list may correspond to a second set of CMRs.

Alternatively, the first channel measurement resource set (for example, the first CMR set) may be a CMR resource set configured with upper layer parameters for configuring the first CMR set. For example, Rel. for CMR resource set configuration. The first CMR set may be configured by RRC of 15/16. Other RRC parameters may be utilized to configure the second CMR set. For example, a new Rel. A second CMR set may be configured with 17 RRC parameters.

《Option 2-3-2》
A first panel index may correspond to a channel measurement resource set (for example, a CMR set) indicated by the resource set index field, and a second panel index may correspond to another CMR set.

That is, the first panel index corresponds to CRI/SSBRI#1 of the first/second/third/fourth resource group, and the second panel index corresponds to the first/second/third/fourth resource group. It may also correspond to CRI/SSBRI #2 of the resource group.

The resource set indicator field indicates whether the first CMR set or the second CMR set is related to CRI/SSBRI #1 of the first/second/third/fourth resource group. Good too.

For example, assume that the resource set index field indicates that the first CMR set is related to CRI/SSBRI #1 of the first/second/third/fourth resource group. In this case, the first panel index corresponds to the first CMR set (or CRI/SSBRI#1 of the first/second/third/fourth resource group), and the second CMR set (or The second panel index may correspond to CRI/SSBRI#2) of the 1/2nd/3rd/4th resource group.

On the other hand, assume that the resource set index field indicates that the second CMR set is related to CRI/SSBRI #1 of the first/second/third/fourth resource group. In this case, the second panel index corresponds to the first CMR set (or CRI/SSBRI#1 of the first/second/third/fourth resource group), and the second CMR set (or The first panel index may correspond to CRI/SSBRI#2) of the 1/2nd/3rd/4th resource group.

FIG. 12 is a diagram showing an example of a CSI report when group-based beam reporting/panel index reporting is set in beam reporting. FIG. 12 shows the mapping order of CSI fields included in one report (for example, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

FIG. 12 shows an example of a CSI report including a CSI field (new field) for panel index information corresponding to CRI/SSBRI #1 or CRI/SSBRI #2 of the resource group. The CMR set corresponding to CRI/SSBRI #1 or CRI/SSBRI #2 of the resource group, respectively, is indicated by the resource set index field. For example, Rel. A new field corresponding to panel index information may be added to the CSI report supported by X.17 (see, for example, FIG. 8).

The order of mapping between new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 12.

[Option 2-4]
The UE may report the panel index for each beam report.

For example, the UE may report one panel index in one beam report. That is, information on the panel index corresponding to each beam report may be included in the CSI report.

FIG. 13 is a diagram showing an example of a CSI report when group-based beam reporting/panel index reporting is set in beam reporting. FIG. 13 shows the mapping order of CSI fields included in one report (for example, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

FIG. 13 shows an example of a CSI report including a CSI field (new field) for panel index information corresponding to a beam report. For example, Rel. A new field corresponding to panel index information may be added to the CSI report supported by X.17 (see, for example, FIG. 8).

The order of mapping between new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 13.

[Option 2-5]
The UE may report a panel pair index (eg, panel pair index) for each beam report.

One panel pair index (or panel combination index) may correspond to two different panel indexes. The method of mapping the first panel index and second panel index of a panel pair to two CMR sets (or two CRIs/SSBRIs included in each resource group) is as follows: Option 2-3-1/Option 2-3 -2 may be applied.

The correspondence between panel pair indexes and panel indexes may be defined in advance by specifications, etc., or may be set by upper layer parameters, etc. For example, the correspondence between the panel pair index and the panel index may be determined based on at least one of the following options 2-5-1 and 2-5-2.

《Option 2-5-1》
The panel pair index may include information regarding which panel index of the panel pair corresponds to the first panel index.

For example, for each panel pair index, the correspondence between the panel index corresponding to the first panel index and the panel index corresponding to the second panel index may be defined or set in advance (see FIG. 14A). . That is, the panel pair index reported by the UE may include at least one of panel index information corresponding to the first panel index and panel index information corresponding to the second panel index.

FIG. 14A is a diagram (or table) showing an example of the association between the panel index corresponding to the first panel index and the panel index corresponding to the second panel index for panel pair indexes #1 to #12. It is. The UE may include and report panel pair index information in the CSI report.

FIG. 15A is a diagram showing an example of a CSI report when group-based beam reporting/panel index reporting is set in beam reporting. FIG. 15A shows the mapping order of CSI fields included in one report (eg, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

FIG. 15A shows an example of a CSI report including a CSI field (new field) for panel pair index information corresponding to a beam report. For example, Rel. A new field corresponding to panel pair index information may be added to the CSI report supported by X.17 (see, for example, FIG. 8). The method of mapping the first panel index and second panel index of a panel pair to two CMR sets (or two CRIs/SSBRIs included in each resource group) is as follows: Option 2-3-1/Option 2-3 The method shown in -2 may be applied.

The order of mapping between new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 15A.

《Option 2-5-2》
The panel pair index may not include information regarding which panel index of the panel pair corresponds to the first panel index. That is, the panel pair index reported by the UE does not need to include panel index information corresponding to the first panel index and panel index information corresponding to the second panel index.

In this case, information regarding which panel index corresponds to the first panel index may be reported using another field (eg, the X field) of the CSI report (see FIG. 14B).

FIG. 14B shows a plurality of (in this case, two) panel indexes corresponding to panel pair indexes #1 to #6, respectively, and an X that indicates panel indexes corresponding to the first panel index and the second panel index. FIG. 7 is a diagram (or table) illustrating an example of association with bit values (or code points) of fields; FIG. Note that the correspondence relationship between the panel pair index/X field bit value/panel index shown in FIG. 14B is an example, and is not limited to this. The UE may include the panel pair index information and the X field in the CSI report.

FIG. 15B is a diagram showing an example of a CSI report when group-based beam reporting/panel index reporting is set in beam reporting. FIG. 15B shows the mapping order of CSI fields included in one report (eg, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

FIG. 15B shows an example of a CSI report including a CSI field (new field) and an X field (new field) for panel pair index information corresponding to the beam report. For example, Rel. New fields may be added to the CSI report supported by X.17 (for example, see FIG. 8) that correspond to the panel pair index information and the X field, respectively. The method of mapping the first panel index and second panel index of a panel pair to two CMR sets (or two CRIs/SSBRIs included in each resource group) is as follows: Option 2-3-1/Option 2-3 The method shown in -2 may be applied.

Alternatively, the specification may define which panel index of the panel pair corresponds to the first panel index. In such a case, the X field may not be set.

The order of mapping between new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 15B.

[Option 2-6]
The UE may report a panel pair index (eg, panel pair index) for each resource group.

One panel pair index (or panel combination index) may correspond to two different panel indexes.

For example, the first panel index of the panel pair may correspond to the CRI/SSBRI #1 of the resource group (or the CMR set indicated by the resource set index). Additionally, the second panel index of the panel pair may correspond to CRI/SSBRI #2 of the resource group.

Alternatively, the correspondence between panel pair indexes and panel indexes may be defined in advance by specifications, etc., or may be set by upper layer parameters, etc. For example, the correspondence between the panel pair index and the panel index may be determined based on at least one of the following options 2-6-1 and 2-6-2.

《Option 2-6-1》
The panel pair index for reporting may include information indicating which panel index in the panel pair is the first panel index. That is, the panel pair index reported by the UE may include at least one of panel index information corresponding to the first panel index and panel index information corresponding to the second panel index.

FIG. 16 is a diagram showing an example of a CSI report when group-based beam reporting/panel index reporting is set in beam reporting. FIG. 16 shows the mapping order of CSI fields included in one report (for example, nth CSI report #n) for group-based CSI/RSRP or SSBRI/RSRP reporting.

FIG. 16 shows an example of a CSI report including a CSI field (new field) for panel pair index information corresponding to each resource group. For example, Rel. A new field corresponding to panel pair index information may be added to the CSI report supported by X.17 (see, for example, FIG. 8).

The panel pair index corresponding to each resource group includes information indicating the panel index corresponding to the first panel index/information indicating the panel index corresponding to the second panel index among the panel pair indexes included in the panel pair. May contain.

The first panel index of the panel pair may correspond to the CRI/SSBRI #1 of the resource group (or the CMR set indicated by the resource set index). Additionally, the second panel index of the panel pair may correspond to CRI/SSBRI #2 of the resource group.

The order of mapping between new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 16.

《Option 2-6-2》
The panel pair index for reporting may not include information indicating which panel index in the panel pair is the first panel index. That is, the panel pair index reported by the UE does not need to include panel index information corresponding to the first panel index and panel index information corresponding to the second panel index.

In this case, information regarding which panel index of the panel pair corresponds to the first panel index may be reported for each resource group using another field (for example, the X field) of the CSI field (FIG. 17 reference).

FIG. 17 shows an example of a CSI report including a CSI field (new field) and an X field (new field) for panel pair index information corresponding to each resource group. For example, Rel. New fields may be added to the CSI report supported by X.17 (for example, see FIG. 8) that correspond to the panel pair index information and the X field, respectively.

The order of mapping between new fields and existing fields (for example, resource set index field, resource group CRI/SSBRI field, RSRP field) is not limited to the configuration shown in FIG. 17.

<Variation>
The panel index may be mapped to a panel reported in a UE capability report (eg, UE capability report). The number of bits required for the panel index field or panel pair index field may be determined (or changed) based on the number of panels reported in the UE capability report.

Alternatively, the panel index may be mapped to the active panel. The number of bits required for the panel index field or panel pair index field may be determined (or changed) based on the number of activated panels.

If a panel is activated, the UE may apply the panel for both UL transmission (UL Tx) and DL reception (DL Rx), UL transmission or DL reception. If the panel is not activated, the UE may not apply the panel for both UL transmission (UL Tx) and DL reception (DL Rx), UL transmission or DL reception.

The activated panel may be reported by the UE or indicated by the base station. When the number of panels/number of active panels is 1, the bit of the panel index/panel pair index field may be 0 (or the field does not exist). When the number of panels/number of active panels is 2, the bit of the panel pair index field may be 0 (or the field does not exist).

Option 2-1 to Option 2-6 shown in the second embodiment may be applied in combination. Which options the UE supports may be reported in the UE capabilities. Furthermore, which option the UE applies may be configured from the base station to the UE using upper layer parameters (for example, CSI-ReportConfig).

The maximum number of different panel indexes/panel pair indices reported in one beam report may be limited to a predetermined number (eg, X). The predetermined number (X) may be defined in advance in the specifications, may be reported in UE capability information, or may be set from the base station to the UE using upper layer parameters (for example, CSI-ReportConfig). Good too. Restrictions based on predetermined numbers are based on Rel. 15/16 beam reporting (e.g., if group-based beam reporting is not enabled), Rel. Group base beam report on 15/16, Rel. It may be applied to group-based beam reporting after 17.

Rel. 15/16 beam reporting (e.g., if group-based beam reporting is not enabled), Rel. Group base beam report on 15/16, Rel. For group-based beam reporting after 17, X may be set separately (eg, application of different X is supported) or a common X may be applied.

Panels/panel pairs (or panel indexes/panel pair indexes) that can be used for beam reporting may be defined in advance by specifications, may be reported by UE capabilities, or may be determined by upper layer parameters (e.g., CSI-ReportConfig). may be configured from the base station to the UE using

Panels/panel pairs (or panel indexes/panel pair indexes) that can be used for beam reporting are Rel. 15/16 beam reporting (e.g., if group-based beam reporting is not enabled), Rel. Group base beam report on 15/16, Rel. It may be applied to group-based beam reporting after 17.

Rel. 15/16 beam reporting (e.g., if group-based beam reporting is not enabled), Rel. Group base beam report on 15/16, Rel. Panels/panel pairs (or panel index/panel pair index) are set separately for group-based beam reporting from 17 onwards (e.g. application of different panels/panel pairs (or panel index/panel pair index) is supported) or a common panel/panel pair (or panel index/panel pair index) may be applied.

Rel. The first embodiment/second embodiment regarding group-based beam reporting after Rel. 15/16 group-based beam reporting.

<UE capability information>
In the first to second embodiments described above, the following UE capabilities may be set. Note that the following UE capabilities may be read as parameters (eg, upper layer parameters) that are set in the UE from the network (eg, base station).

UE capability information regarding whether to support panel index reporting in beam reports may be defined.

Rel. UE capability information regarding whether to support reporting panel index in 15/16 group-based beam reporting may be defined.

Rel. UE capability information regarding whether to support reporting panel index in 17 group base beam reporting may be defined.

The first to second embodiments may be configured to be applied to a UE that supports/reports at least one of the above-mentioned UE capabilities. Alternatively, the first to second embodiments may be configured to be applied to a UE configured from a network.

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

FIG. 18 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc. specified by the Third Generation Partnership Project (3GPP). .

Additionally, the wireless communication system 1 may support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC has dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), and dual connectivity between NR and LTE (NR-E -UTRA Dual Connectivity (NE-DC)).

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

The wireless communication system 1 has dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC) where both the MN and SN are NR base stations (gNB)). )) may be supported.

The wireless communication system 1 includes a base station 11 that forms a macro cell C1 with relatively wide coverage, and base stations 12 (12a-12c) that are located within the macro cell C1 and form a small cell C2 that is narrower than the macro cell C1. You may prepare. User terminal 20 may be located within at least one cell. The arrangement, number, etc. of each cell and user terminal 20 are not limited to the embodiment shown in the figure. Hereinafter, when

base stations

11 and 12 are not distinguished, they will be collectively referred to as base station 10.

The user terminal 20 may be connected to at least one of the plurality of base stations 10. The user terminal 20 may use at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).

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

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

The plurality of base stations 10 may be connected by wire (for example, optical fiber, X2 interface, etc. compliant with Common Public Radio Interface (CPRI)) or wirelessly (for example, NR communication). For example, when NR communication is used as a backhaul between

base stations

11 and 12, base station 11, which is an upper station, is an Integrated Access Backhaul (IAB) donor, and base station 12, which is a relay station, is an IAB donor. May also be called a node.

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

The user terminal 20 may be a terminal compatible with at least one of communication systems such as LTE, LTE-A, and 5G.

In the wireless communication system 1, an orthogonal frequency division multiplexing (OFDM)-based wireless access method may be used. For example, in at least one of the downlink (DL) and uplink (UL), Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), etc. may be used.

A wireless access method may also be called a waveform. Note that in the wireless communication system 1, other wireless access methods (for example, other single carrier transmission methods, other multicarrier transmission methods) may be used as the UL and DL radio access methods.

In the wireless communication system 1, the downlink channels include a physical downlink shared channel (PDSCH) shared by each user terminal 20, a broadcast channel (physical broadcast channel (PBCH)), and a downlink control channel (physical downlink control). Channel (PDCCH)) or the like may be used.

In the wireless communication system 1, uplink channels include a physical uplink shared channel (PUSCH) shared by each user terminal 20, an uplink control channel (PUCCH), and a random access channel. (Physical Random Access Channel (PRACH)) or the like may be used.

User data, upper layer control information, System Information Block (SIB), etc. are transmitted by the PDSCH. User data, upper layer control information, etc. may be transmitted by PUSCH. Furthermore, a Master Information Block (MIB) may be transmitted via the PBCH.

Lower layer control information may be transmitted by PDCCH. The lower layer control information may include, for example, downlink control information (DCI) that includes scheduling information for at least one of PDSCH and PUSCH.

Note that the DCI that schedules PDSCH may be called DL assignment, DL DCI, etc., and the DCI that schedules PUSCH may be called UL grant, UL DCI, etc. Note that PDSCH may be replaced with DL data, and PUSCH may be replaced with UL data.

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

One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces may be referred to as a search space set. Note that "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting", etc. in the present disclosure may be read interchangeably.

The PUCCH allows channel state information (CSI), delivery confirmation information (for example, may be called Hybrid Automatic Repeat Request ACKnowledgement (HARQ-ACK), ACK/NACK, etc.), and scheduling request ( Uplink Control Information (UCI) including at least one of SR)) may be transmitted. A random access preamble for establishing a connection with a cell may be transmitted by PRACH.

Note that in this disclosure, downlinks, uplinks, etc. may be expressed without adding "link". Furthermore, various channels may be expressed without adding "Physical" at the beginning.

In the wireless communication system 1, a synchronization signal (SS), a downlink reference signal (DL-RS), and the like may be transmitted. In the wireless communication system 1, the DL-RS includes a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), and a demodulation reference signal (DeModulation). Reference Signal (DMRS)), Positioning Reference Signal (PRS), Phase Tracking Reference Signal (PTRS), etc. may be transmitted.

The synchronization signal may be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be called an SS/PBCH block, SS Block (SSB), etc. Note that SS, SSB, etc. may also be called reference signals.

In addition, in the wireless communication system 1, measurement reference signals (Sounding Reference Signal (SRS)), demodulation reference signals (DMRS), etc. are transmitted as uplink reference signals (UL-RS). good. Note that DMRS may be called a user terminal-specific reference signal (UE-specific reference signal).

(base station)
FIG. 19 is a diagram illustrating an example of the configuration of a base station according to an embodiment. The base station 10 includes a control section 110, a transmitting/receiving section 120, a transmitting/receiving antenna 130, and a transmission line interface 140. Note that one or more of each of the control unit 110, the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140 may be provided.

Note that this example mainly shows functional blocks that are characteristic of the present embodiment, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.

The control unit 110 controls the entire base station 10. The control unit 110 can be configured from a controller, a control circuit, etc., which will be explained based on common recognition in the technical field related to the present disclosure.

The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), and the like. The control unit 110 may control transmission and reception, measurement, etc. using the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140. The control unit 110 may generate data, control information, a sequence, etc. to be transmitted as a signal, and may transfer the generated data to the transmitting/receiving unit 120. The control unit 110 may perform communication channel call processing (setting, release, etc.), status management of the base station 10, radio resource management, and the like.

The transmitting/receiving section 120 may include a baseband section 121, a radio frequency (RF) section 122, and a measuring section 123. The baseband section 121 may include a transmission processing section 1211 and a reception processing section 1212. The transmitter/receiver unit 120 includes a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter/receiver circuit, etc., which are explained based on common understanding in the technical field related to the present disclosure. be able to.

The transmitting/receiving section 120 may be configured as an integrated transmitting/receiving section, or may be configured from a transmitting section and a receiving section. The transmitting section may include a transmitting processing section 1211 and an RF section 122. The reception section may include a reception processing section 1212, an RF section 122, and a measurement section 123.

The transmitting/receiving antenna 130 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.

The transmitter/receiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitter/receiver 120 may receive the above-mentioned uplink channel, uplink reference signal, and the like.

The transmitting/receiving unit 120 may form at least one of a transmitting beam and a receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

The transmitting/receiving unit 120 (transmission processing unit 1211) performs Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. may be performed to generate a bit string to be transmitted.

The transmitting/receiving unit 120 (transmission processing unit 1211) performs channel encoding (which may include error correction encoding), modulation, mapping, filter processing, and discrete Fourier transform (DFT) on the bit string to be transmitted. A baseband signal may be output by performing transmission processing such as processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion.

The transmitting/receiving unit 120 (RF unit 122) may perform modulation, filter processing, amplification, etc. on the baseband signal in a radio frequency band, and may transmit the signal in the radio frequency band via the transmitting/receiving antenna 130. .

On the other hand, the transmitting/receiving section 120 (RF section 122) may perform amplification, filter processing, demodulation into a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 130.

The transmitting/receiving unit 120 (reception processing unit 1212) performs analog-to-digital conversion, fast Fourier transform (FFT) processing, and inverse discrete Fourier transform (IDFT) on the acquired baseband signal. )) processing (if necessary), applying reception processing such as filter processing, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing and PDCP layer processing, User data etc. may also be acquired.

The transmitting/receiving unit 120 (measuring unit 123) may perform measurements regarding the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, etc. based on the received signal. The measurement unit 123 measures received power (for example, Reference Signal Received Power (RSRP)), reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR) )) , signal strength (for example, Received Signal Strength Indicator (RSSI)), propagation path information (for example, CSI), etc. may be measured. The measurement results may be output to the control unit 110.

The transmission path interface 140 transmits and receives signals (backhaul signaling) between devices included in the core network 30, other base stations 10, etc., and transmits and receives user data (user plane data) for the user terminal 20, control plane It is also possible to acquire and transmit data.

Note that the transmitting unit and receiving unit of the base station 10 in the present disclosure may be configured by at least one of the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140.

The transmitter/receiver 120 may transmit configuration information regarding group-based beam reporting. The transceiver 120 may receive group-based beam reports that include information about panel indexes or panel pair indexes.

When UL transmission using a plurality of panels including at least a first panel and a second panel is supported, the control unit 110 configures at least one of a group-based beam report setting and a beam report setting including a panel index. It may also be controlled to instruct one.

(user terminal)
FIG. 20 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment. The user terminal 20 includes a control section 210, a transmitting/receiving section 220, and a transmitting/receiving antenna 230. Note that one or more of each of the control unit 210, the transmitting/receiving unit 220, and the transmitting/receiving antenna 230 may be provided.

Note that this example mainly shows functional blocks that are characteristic of the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.

The control unit 210 controls the entire user terminal 20. The control unit 210 can be configured from a controller, a control circuit, etc., which will be explained based on common recognition in the technical field related to the present disclosure.

The control unit 210 may control signal generation, mapping, etc. The control unit 210 may control transmission and reception using the transmitting/receiving unit 220 and the transmitting/receiving antenna 230, measurement, and the like. The control unit 210 may generate data, control information, sequences, etc. to be transmitted as a signal, and may transfer the generated data to the transmitting/receiving unit 220.

The transmitting/receiving section 220 may include a baseband section 221, an RF section 222, and a measuring section 223. The baseband section 221 may include a transmission processing section 2211 and a reception processing section 2212. The transmitting/receiving unit 220 can be configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field related to the present disclosure.

The transmitting/receiving section 220 may be configured as an integrated transmitting/receiving section, or may be configured from a transmitting section and a receiving section. The transmitting section may include a transmitting processing section 2211 and an RF section 222. The reception section may include a reception processing section 2212, an RF section 222, and a measurement section 223.

The transmitting/receiving antenna 230 can be configured from an antenna, such as an array antenna, as described based on common recognition in the technical field related to the present disclosure.

The transmitter/receiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitter/receiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, and the like.

The transmitting/receiving unit 220 may form at least one of a transmitting beam and a receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

The transmission/reception unit 220 (transmission processing unit 2211) performs PDCP layer processing, RLC layer processing (e.g. RLC retransmission control), MAC layer processing (e.g. , HARQ retransmission control), etc., to generate a bit string to be transmitted.

The transmitting/receiving unit 220 (transmission processing unit 2211) performs channel encoding (which may include error correction encoding), modulation, mapping, filter processing, DFT processing (as necessary), and IFFT processing on the bit string to be transmitted. , precoding, digital-to-analog conversion, etc., and output a baseband signal.

Note that whether or not to apply DFT processing may be based on the settings of transform precoding. When transform precoding is enabled for a certain channel (for example, PUSCH), the transmitting/receiving unit 220 (transmission processing unit 2211) performs the above processing in order to transmit the channel using the DFT-s-OFDM waveform. DFT processing may be performed as the transmission processing, or if not, DFT processing may not be performed as the transmission processing.

The transmitting/receiving unit 220 (RF unit 222) may perform modulation, filter processing, amplification, etc. on the baseband signal in a radio frequency band, and may transmit the signal in the radio frequency band via the transmitting/receiving antenna 230. .

On the other hand, the transmitting/receiving section 220 (RF section 222) may perform amplification, filter processing, demodulation into a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 230.

The transmission/reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filter processing, demapping, demodulation, and decoding (error correction) on the acquired baseband signal. (which may include decoding), MAC layer processing, RLC layer processing, and PDCP layer processing may be applied to obtain user data and the like.

The transmitting/receiving unit 220 (measuring unit 223) may perform measurements regarding the received signal. For example, the measurement unit 223 may perform RRM measurement, CSI measurement, etc. based on the received signal. The measurement unit 223 may measure received power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), propagation path information (for example, CSI), and the like. The measurement results may be output to the control unit 210.

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

The transceiver unit 220 may receive configuration information regarding group-based beam reporting. The transmitter/receiver 220 may receive information regarding the panel index to be reported.

When UL transmission using a plurality of panels including at least a first panel and a second panel is supported and group-based beam reporting is performed, the control unit 210 includes a panel index or a panel pair index in group-based beam reporting. It may also be possible to control the report to include information regarding the information.

The control unit 210 may control the panel index to be reported for each channel measurement resource, for each resource group, for each channel measurement resource set, or for each beam report.

The control unit 210 may control the panel pair index to be reported for each beam report or for each resource group.

(Hardware configuration)
It should be noted that the block diagram used to explain the above embodiment shows blocks in functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using one physically or logically coupled device, or may be realized using two or more physically or logically separated devices directly or indirectly (e.g. , wired, wireless, etc.) and may be realized using a plurality of these devices. The functional block may be realized by combining software with the one device or the plurality of devices.

Here, functions include judgment, decision, judgement, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and consideration. , broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. Not limited. For example, a functional block (configuration unit) that performs transmission may be called a transmitting unit, a transmitter, or the like. In either case, as described above, the implementation method is not particularly limited.

For example, a base station, a user terminal, etc. in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. FIG. 21 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment. The base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc. .

Note that in this disclosure, words such as apparatus, circuit, device, section, unit, etc. can be read interchangeably. The hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured not to include some of the devices.

For example, although only one processor 1001 is illustrated, there may be multiple processors. Also, the processing may be performed by one processor, or the processing may be performed by two or more processors simultaneously, sequentially, or using other techniques. Note that the processor 1001 may be implemented using one or more chips.

Each function in the base station 10 and the user terminal 20 is performed by, for example, loading predetermined software (program) onto hardware such as a processor 1001 and a memory 1002, so that the processor 1001 performs calculations and communicates via the communication device 1004. This is achieved by controlling at least one of reading and writing data in the memory 1002 and storage 1003.

The processor 1001, for example, operates an operating system to control the entire computer. The processor 1001 may be configured by a central processing unit (CPU) that includes interfaces with peripheral devices, a control device, an arithmetic unit, registers, and the like. For example, at least a portion of the above-mentioned control unit 110 (210), transmitting/receiving unit 120 (220), etc. may be realized by the processor 1001.

Furthermore, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes in accordance with these. As the program, a program that causes a computer to execute at least part of the operations described in the above embodiments is used. For example, the control unit 110 (210) may be realized by a control program stored in the memory 1002 and operated in the processor 1001, and other functional blocks may also be realized in the same way.

The memory 1002 is a computer-readable recording medium, and includes at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), and other suitable storage media. It may be composed of one. Memory 1002 may be called a register, cache, main memory, or the like. The memory 1002 can store executable programs (program codes), software modules, and the like to implement a wireless communication method according to an embodiment of the present disclosure.

The storage 1003 is a computer-readable recording medium, such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM), etc.), a digital versatile disk, removable disk, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium. It may be configured by Storage 1003 may also be called an auxiliary storage device.

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

The input device 1005 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside. The output device 1006 is an output device (for example, a display, a speaker, a light emitting diode (LED) lamp, etc.) that performs output to the outside. Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).

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

The base station 10 and user terminal 20 also include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc. It may be configured to include hardware, and a part or all of each functional block may be realized using the hardware. For example, processor 1001 may be implemented using at least one of these hardwares.

(Modified example)
Note that terms explained in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, channel, symbol and signal may be interchanged. Also, the signal may be a message. The reference signal may also be abbreviated as RS, and may be called a pilot, pilot signal, etc. depending on the applicable standard. Further, a component carrier (CC) may be called a cell, a frequency carrier, a carrier frequency, or the like.

A radio frame may be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting a radio frame may be called a subframe. Furthermore, a subframe may be composed of one or more slots in the time domain. A subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.

Here, the numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel. Numerology includes, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, and radio frame configuration. , a specific filtering process performed by the transceiver in the frequency domain, a specific windowing process performed by the transceiver in the time domain, etc.

A slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. Furthermore, a slot may be a time unit based on numerology.

A slot may include multiple mini-slots. Each minislot may be made up of one or more symbols in the time domain. Furthermore, a mini-slot may also be called a sub-slot. A minislot may be made up of fewer symbols than a slot. PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (PUSCH) mapping type B.

Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals. Other names may be used for the radio frame, subframe, slot, minislot, and symbol. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be read interchangeably.

For example, one subframe may be called a TTI, a plurality of consecutive subframes may be called a TTI, and one slot or one minislot may be called a TTI. In other words, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. It may be. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

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

The TTI may be a transmission time unit of a channel-coded data packet (transport block), a code block, a codeword, etc., or may be a processing unit of scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (for example, the number of symbols) to which transport blocks, code blocks, code words, etc. are actually mapped may be shorter than the TTI.

Note that when one slot or one minislot is called a TTI, one or more TTIs (that is, one or more slots or one or more minislots) may be the minimum time unit for scheduling. Further, the number of slots (minislot number) that constitutes the minimum time unit of the scheduling may be controlled.

A TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc. A TTI that is shorter than the normal TTI may be referred to as an abbreviated TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

Note that long TTI (for example, normal TTI, subframe, etc.) may be read as TTI with a time length exceeding 1 ms, and short TTI (for example, short TTI, etc.) It may also be read as a TTI having the above TTI length.

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

Additionally, an RB may include one or more symbols in the time domain, and may have a length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

Note that one or more RBs include a physical resource block (Physical RB (PRB)), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, and an RB. They may also be called pairs.

Additionally, a resource block may be configured by one or more resource elements (REs). For example, 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.

Bandwidth Part (BWP) (also called partial bandwidth, etc.) refers to a subset of consecutive common resource blocks (RB) for a certain numerology in a certain carrier. Good too. Here, the common RB may be specified by an RB index based on a common reference point of the carrier. PRBs may be defined in a BWP and numbered within that BWP.

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

At least one of the configured BWPs may be active and the UE may not expect to transmit or receive a given signal/channel outside of the active BWP. Note that "cell", "carrier", etc. in the present disclosure may be replaced with "BWP".

Note that the structures of the radio frame, subframe, slot, minislot, symbol, etc. described above are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of symbols included in an RB, The number of subcarriers, the number of symbols within a TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.

In addition, the information, parameters, etc. described in this disclosure may be expressed using absolute values, relative values from a predetermined value, or using other corresponding information. may be expressed. For example, radio resources may be indicated by a predetermined index.

The names used for parameters and the like in this disclosure are not limiting in any respect. Furthermore, the mathematical formulas etc. using these parameters may differ from those explicitly disclosed in this disclosure. Since the various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable designation, the various names assigned to these various channels and information elements are not in any way exclusive designations. .

The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be referred to throughout the above description, may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may also be represented by a combination of

Additionally, information, signals, etc. may be output from the upper layer to the lower layer and from the lower layer to at least one of the upper layer. Information, signals, etc. may be input and output via multiple network nodes.

Input/output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Information, signals, etc. that are input and output can be overwritten, updated, or added. The output information, signals, etc. may be deleted. The input information, signals, etc. may be transmitted to other devices.

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

Note that the physical layer signaling may also be called Layer 1/Layer 2 (L1/L2) control information (L1/L2 control signal), L1 control information (L1 control signal), etc. Further, RRC signaling may be called an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like. Further, MAC signaling may be notified using, for example, a MAC Control Element (CE).

Further, notification of prescribed information (for example, notification of "X") is not limited to explicit notification, but may be made implicitly (for example, by not notifying the prescribed information or by providing other information) (by notification).

The determination may be made by a value expressed by 1 bit (0 or 1), or by a boolean value expressed by true or false. , may be performed by numerical comparison (for example, comparison with a predetermined value).

Software includes instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name. , should be broadly construed to mean an application, software application, software package, routine, subroutine, object, executable, thread of execution, procedure, function, etc.

Additionally, software, instructions, information, etc. may be sent and received via a transmission medium. For example, if the software uses wired technology (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (such as infrared, microwave, etc.) to , a server, or other remote source, these wired and/or wireless technologies are included within the definition of a transmission medium.

The terms "system" and "network" used in this disclosure may be used interchangeably. "Network" may refer to devices (eg, base stations) included in the network.

In this disclosure, "precoding", "precoder", "weight (precoding weight)", "quasi-co-location (QCL)", "Transmission Configuration Indication state (TCI state)", "space "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", Terms such as "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", and "panel" are interchangeable. can be used.

In the present disclosure, "Base Station (BS)", "Wireless base station", "Fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "Access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission/Reception Point (TRP)", "Panel" , "cell," "sector," "cell group," "carrier," "component carrier," and the like may be used interchangeably. A base station is sometimes referred to by terms such as macrocell, small cell, femtocell, and picocell.

A base station can accommodate one or more (eg, three) cells. If a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is connected to a base station subsystem (e.g., an indoor small base station (Remote Radio Communication services can also be provided by the Head (RRH)). The term "cell" or "sector" refers to part or all of the coverage area of a base station and/or base station subsystem that provides communication services in this coverage.

In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" are used interchangeably. can be done.

A mobile station is a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal. , handset, user agent, mobile client, client, or some other suitable terminology.

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

The moving body refers to a movable object, and the moving speed is arbitrary, and naturally includes cases where the moving body is stopped. The mobile objects include, for example, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, carts, rickshaws, and ships (ships and other watercraft). , including, but not limited to, airplanes, rockets, artificial satellites, drones, multicopters, quadcopters, balloons, and items mounted thereon. Furthermore, the mobile object may be a mobile object that autonomously travels based on a travel command.

The moving object may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving object (for example, a drone, a self-driving car, etc.), or a robot (manned or unmanned). ). Note that at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

FIG. 22 is a diagram illustrating an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (current sensor 50, (including a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service section 59, and a communication module 60. Be prepared.

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

The electronic control unit 49 includes a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (for example, an input/output (IO) port) 63. Signals from various sensors 50-58 provided in the vehicle are input to the electronic control unit 49. The electronic control section 49 may be called an electronic control unit (ECU).

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

The information service department 59 includes various devices such as car navigation systems, audio systems, speakers, displays, televisions, and radios that provide (output) various information such as driving information, traffic information, and entertainment information, and these devices. It consists of one or more ECUs that control the The information service unit 59 provides various information/services (for example, multimedia information/multimedia services) to the occupants of the vehicle 40 using information acquired from an external device via the communication module 60 or the like.

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

The driving support system unit 64 includes millimeter wave radar, Light Detection and Ranging (LiDAR), a camera, a positioning locator (for example, Global Navigation Satellite System (GNSS), etc.), and map information (for example, High Definition (HD)). maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., inertial measurement units (IMUs), inertial navigation systems (INS), etc.), artificial intelligence ( Artificial Intelligence (AI) chips, AI processors, and other devices that provide functions to prevent accidents and reduce the driver's driving burden, as well as one or more devices that control these devices. It consists of an ECU. Further, the driving support system section 64 transmits and receives various information via the communication module 60, and realizes a driving support function or an automatic driving function.

The communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63. For example, the communication module 60 communicates via the communication port 63 with a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, which are included in the vehicle 40. Data (information) is transmitted and received between the axle 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50-58.

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

The communication module 60 receives signals from the various sensors 50 to 58 described above that are input to the electronic control unit 49, information obtained based on the signals, and input from the outside (user) obtained via the information service unit 59. At least one of the information based on the information may be transmitted to an external device via wireless communication. The electronic control unit 49, various sensors 50-58, information service unit 59, etc. may be called an input unit that receives input. For example, the PUSCH transmitted by the communication module 60 may include information based on the above input.

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

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

Additionally, the base station in the present disclosure may be replaced by a user terminal. For example, communication between a base station and a user terminal is replaced with communication between multiple user terminals (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.). Regarding the configuration, each aspect/embodiment of the present disclosure may be applied. In this case, the user terminal 20 may have the functions that the base station 10 described above has. Further, words such as "uplink" and "downlink" may be replaced with words corresponding to inter-terminal communication (for example, "sidelink"). For example, uplink channels, downlink channels, etc. may be replaced with sidelink channels.

Similarly, the user terminal in the present disclosure may be replaced with a base station. In this case, the base station 10 may have the functions that the user terminal 20 described above has.

In this disclosure, the operations performed by the base station may be performed by its upper node in some cases. In a network that includes one or more network nodes having a base station, various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (e.g. It is clear that this can be performed by a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc. (though not limited thereto), or a combination thereof.

Each aspect/embodiment described in this disclosure may be used alone, in combination, or may be switched and used in accordance with execution. Further, the order of the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in this disclosure may be changed as long as there is no contradiction. For example, the methods described in this disclosure use an example order to present elements of the various steps and are not limited to the particular order presented.

Each aspect/embodiment described in this disclosure includes Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system ( 4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is an integer or decimal number, for example)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications ), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802 .11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), and other appropriate wireless communication methods. The present invention may be applied to systems to be used, next-generation systems expanded, modified, created, or defined based on these systems. Furthermore, a combination of multiple systems (for example, a combination of LTE or LTE-A and 5G) may be applied.

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

As used in this disclosure, any reference to elements using the designations "first," "second," etc. does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not imply that only two elements may be employed or that the first element must precede the second element in any way.

The term "determining" as used in this disclosure may encompass a wide variety of actions. For example, "judgment" can mean judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry ( For example, searching in a table, database, or other data structure), ascertaining, etc. may be considered to be "determining."

In addition, "judgment (decision)" includes receiving (e.g., receiving information), transmitting (e.g., sending information), input (input), output (output), access ( may be considered to be "determining", such as accessing data in memory (eg, accessing data in memory).

In addition, "judgment" is considered to mean "judging" resolving, selecting, choosing, establishing, comparing, etc. Good too. In other words, "judgment (decision)" may be considered to be "judgment (decision)" of some action.

Furthermore, "judgment (decision)" may be read as "assuming", "expecting", "considering", etc.

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

In this disclosure, when two elements are connected, they may be connected using one or more electrical wires, cables, printed electrical connections, etc., as well as in the radio frequency domain, microwave can be considered to be "connected" or "coupled" to each other using electromagnetic energy having wavelengths in the light (both visible and invisible) range.

In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." Note that the term may also mean that "A and B are each different from C". Terms such as "separate" and "coupled" may also be interpreted similarly to "different."

Where "include", "including" and variations thereof are used in this disclosure, these terms are inclusive, as is the term "comprising". It is intended that Furthermore, the term "or" as used in this disclosure is not intended to be exclusive or.

In this disclosure, when articles are added by translation, such as a, an, and the in English, the present disclosure may include that the nouns following these articles are plural.

Although the invention according to the present disclosure has been described in detail above, it is clear for those skilled in the art that the invention according to the present disclosure is not limited to the embodiments described in the present disclosure. The invention according to the present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the invention as determined based on the claims. Therefore, the description of the present disclosure is for the purpose of illustrative explanation and does not have any limiting meaning on the invention according to the present disclosure.

Claims

a receiver for receiving configuration information regarding group-based beam reporting;
If UL transmission using a plurality of panels including at least a first panel and a second panel is supported and the group-based beam report is performed, information regarding the panel index or panel pair index is included in the group-based beam report. A terminal comprising: a control unit configured to include and report information;
The terminal according to claim 1, wherein the control unit controls the panel index to be reported for each channel measurement resource, for each resource group, for each channel measurement resource set, or for each beam report.
The terminal according to claim 1, wherein the control unit controls the panel pair index to be reported for each beam report or for each resource group.
The terminal according to any one of claims 1 to 3, wherein the receiving unit receives information regarding a panel index to be reported.
receiving configuration information regarding group-based beam reporting;
If UL transmission using a plurality of panels including at least a first panel and a second panel is supported and the group-based beam report is performed, information regarding the panel index or panel pair index is included in the group-based beam report. A wireless communication method for a terminal, comprising: controlling the terminal to include the report.
a transmitter configured to transmit configuration information regarding group-based beam reporting;
If UL transmission using multiple panels including at least a first panel and a second panel is supported, instruct at least one of the group-based beam reporting settings and the beam reporting settings including the panel index. a control unit;
a receiving unit configured to receive the group-based beam report including information regarding a panel index or a panel pair index.