WO2020059146A1 - User terminal and wireless communication method - Google Patents

Abstract

A user terminal according to one embodiment of the present disclosure is characterized by having a receiving unit which receives the report setting information for channel state information (CSI), and also having a control unit for controlling CSI reports of a plurality of CSI types on the basis of the CSI report setting information. This embodiment of the present disclosure makes it possible to accurately detect beam failure.

Description

User terminal and wireless communication method

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

2. Description of the Related Art In a UMTS (Universal Mobile Telecommunications System) network, LTE (Long Term Evolution) has been specified for the purpose of higher data rate and lower delay (Non-Patent Document 1). Also, LTE-Advanced (3GPP@Rel.10-14) has been specified for the purpose of further increasing the capacity and upgrading of LTE (3GPP (Third Generation Partnership Project) @Rel. (Release) 8, 9).

A successor system to LTE (for example, 5G (5th generation mobile communication system), 5G + (plus), NR (New Radio), 3GPP Rel. 15 or later) is also being studied.

In the existing LTE system (LTE Rel. 8-14), a user terminal (UE: User \ Equipment) measures a predetermined reference signal and transmits channel state information (CSI: Channel \ State \ Information) to the base station.

In a future wireless communication system (for example, NR), a plurality of transmission / reception points (TRP: Transmission / Reception @ Point) (multi-TRP) or a plurality of panels (multi-panel) may perform non-coherent transmission to the UE. Are being considered.

In a multi-TRP / multi-panel scenario, multiple CSI types are required to be reported for dynamic scheduling. The type of information to be reported, the size, and the like may be different depending on the CSI type.

However, according to the NR specifications examined so far, the UE may not be able to transmit CSI reports of different CSI types based on RSs from different TRPs (or panels) at appropriate timing, and communication throughput may be reduced.

Therefore, it is an object of the present disclosure to provide a user terminal and a wireless communication method that can appropriately perform a plurality of CSI type CSI reports even when a plurality of TRPs or panels are used.

A user terminal according to one aspect of the present disclosure, a receiving unit that receives channel state information (CSI: Channel State Information) report setting information, and controls a plurality of CSI type CSI reports based on the CSI report setting information. And a control unit.

According to an embodiment of the present disclosure, even when a plurality of TRPs or panels are used, CSI reports of a plurality of CSI types can be appropriately performed.

1A and 1B are diagrams illustrating an example of an RRC information element related to a CSI report setting and a CSI resource setting. 2A and 2B are diagrams illustrating examples of RRC information elements related to the NZP @ CSI-RS resource set and the CSI-SSB resource set. FIG. 3 is a diagram illustrating an example of the RRC information element related to the TCI state. 4A-4D are diagrams illustrating examples of CSI feedback in a multi-TRP scenario. FIGS. 5A and 5B are diagrams showing an example of RRC parameters relating to the correspondence between CSI-RS and panels. 6A and 6B are diagrams illustrating an example of the RRC information element related to the CSI report configuration that can configure a plurality of CSI sets. FIG. 7 is a diagram illustrating a first example of an RRC information element related to CSI resource configuration in which a plurality of CSI sets can be configured. FIG. 8 is a diagram illustrating a second example of the RRC information element related to the CSI resource setting in which a plurality of CSI sets can be set. FIG. 9 is a diagram illustrating a third example of the RRC information element related to the CSI resource setting in which a plurality of CSI sets can be set. FIGS. 10A and 10B are diagrams illustrating an example of settings for inter-TRP interference measurement. FIG. 11 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. FIG. 12 is a diagram illustrating an example of a configuration of a base station according to one embodiment. FIG. 13 is a diagram illustrating an example of a configuration of a user terminal according to an embodiment. FIG. 14 is a diagram illustrating an example of a hardware configuration of the base station and the user terminal according to the embodiment.

(CSI)
In NR, the UE measures a channel state using a predetermined reference signal (or a resource for the reference signal), and feeds back (reports) channel state information (CSI: Channel State Information) to the base station.

The UE includes a channel state information reference signal (CSI-RS: Channel State Information Reference Signal), a synchronization signal / broadcast channel (SS / PBCH: Synchronization Signal / Physical Broadcast Channel) block, a synchronization signal (SS: Synchronization Signal), and demodulation. The channel state may be measured using a reference signal (DMRS: DeModulation Reference Signal) or the like.

The CSI-RS resource may include at least one of a non-zero power (NZP) CSI-RS resource, a zero power (ZP: Zero Power) CSI-RS resource, and a CSI-IM (Interference Measurement) resource.

Resources for measuring signal components for CSI may be referred to as signal measurement resources (SMR: Signal Measurement Resource). The SMR may include, for example, NZP @ CSI-RS resources for channel measurement, SSB, and the like.

A resource for measuring an interference component for CSI may be referred to as an interference measurement resource (IMR: Signal Measurement Resource). The IMR may include, for example, at least one of an NZP @ CSI-RS resource, an SSB, a ZP @ CSI-RS resource, and a CSI-IM resource for interference measurement.

The SS / PBCH block is a block including a synchronization signal (for example, a primary synchronization signal (PSS: Primary Synchronization Signal), a secondary synchronization signal (SSS: Secondary Synchronization Signal)) and a PBCH (and a corresponding DMRS). SSB) or the like.

The CSI includes a channel quality indicator (CQI: Channel Quality Indicator), a precoding matrix indicator (PMI: Precoding Matrix Indicator), a CSI-RS resource indicator (CRI: CSI-RS Resource Indicator), and an SS / PBCH block resource indicator (CRI-RS Resource Indicator). SSBRI: SS / PBCH Block Indicator), layer indicator (LI: Layer Indicator), rank indicator (RI: Rank Indicator), L1-RSRP (reference signal reception power in layer 1 (Layer 1 Reference Signal Received に お け る Power)), L1- It may include at least one of RSRQ (Reference Signal Received Quality), L1-SINR (Signal to Interference Plus Noise Ratio), L1-SNR (Signal to Noise Ratio), and the like.

$ CSI may have multiple parts. The CSI part 1 may include information having a relatively small number of bits (for example, RI). The CSI part 2 may include information having a relatively large number of bits (for example, CQI), such as information determined based on the CSI part 1.

Ｃ Also, CSI may be classified into several CSI types. The type of information to be reported, the size, and the like may be different depending on the CSI type. For example, a CSI type set for performing communication using a single beam (also referred to as a type 1 (type @ I) @CSI, a CSI for a single beam, etc.) and a CSI set for performing communication using a multi-beam Type (also referred to as type 2 (type II) CSI, multi-beam CSI, etc.) may be defined. The usage application of the CSI type is not limited to this.

Measurement results (eg, CSI) reported for beam management may be referred to as beam measurements, beam measurements, beam measurement reports, and so on.

As CSI feedback methods, periodic CSI (P-CSI: Periodic @ CSI) reports, aperiodic CSI (A-CSI: Aperiodic @ CSI) reports, semi-persistent CSI (SP-CSI: Semi-Persistent @ CSI) ) Reports are being considered.

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

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

The MAC signaling may be, for example, a MAC control element (MAC CE (Control Element)) or a MAC PDU (Protocol Data Unit). The broadcast information includes, for example, a master information block (MIB: Master Information Block), a system information block (SIB: System Information Block), minimum system information (RMSI: Remaining Minimum System Information), and other system information (OSI: Other). System @ Information).

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

The CSI measurement setting information may be set 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.

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

As shown in FIG. 1A, the CSI report configuration information (“CSI-ReportConfig”) includes channel measurement resource information (“resourcesForChannelMeasurement”). Further, the CSI report setting information may include NZP @ CSI-RS resource information for interference measurement (“nzp-CSI-RS-ResourcesForInterference”), CSI-IM resource information for interference measurement (“csi-IM-ResourcesForInterference”), and the like. Good. These resource information correspond to the ID (Identifier) (“CSI-ResourceConfigId”) of the CSI resource configuration information.

Note that the ID of the CSI resource setting information corresponding to each resource information (which may be referred to as a CSI resource setting ID) may have different values.

As shown in FIG. 1B, the CSI resource setting information (“CSI-ResourceConfig”) may include a CSI resource setting information ID, CSI-RS resource set list information (“csi-RS-ResourceSetList”), and the like. The CSI-RS resource set list includes NZP @ CSI-RS and SSB information for measurement (“nzp-CSI-RS-SSB”), CSI-IM resource set list information (“csi-IM-ResourceSetList”). ,including.

Note that the channel measurement resource may be used for calculating CQI, PMI, L1-RSRP, and the like, for example. The interference measurement resource may be used for calculating L1-SINR, L1-SNR, L1-RSRQ, and other indexes related to interference.

When the interference measurement is performed in CSI-IM, each CSI-RS for channel measurement is based on the order of the CSI-RS resource and the CSI-IM resource in the corresponding resource set, and the CSI-IM resource from the resource point of view. May be associated.

"Nzp-CSI-RS-SSB" includes NZP @ CSI-RS resource set list information ("nzp-CSI-RS-ResourceSetList") and SSB resource set list information for CSI measurement ("csi-SSB-ResourceSetList"). May be included. These list information respectively correspond to one or more NZP @ CSI-RS resource set IDs ("CSI-ResourceConfigId") and CSI-SSB resource set IDs ("CSI-SSB-ResourceSetId"), and It may be used to identify resources.

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

As shown in FIG. 2A, the 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 resource set"). CSI-RS-ResourceId ”). The NZP @ CSI-RS resource information ("NZP-CSI-RS-Resource") includes an NZP @ CSI-RS resource ID and a transmission setting instruction state (TCI state (Transmission Configuration Indication state)) ID ("TCI-stateId"). And may be included. 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 of 0 or more and 63 or less, and may be used to identify the SSB in the SS burst.

(QCL / TCI)
In NR, it is considered to control a reception process (for example, at least one of reception, demapping, demodulation, and decoding) of at least one of a signal and a channel (expressed as a signal / channel) based on a TCI state. I have.

The TCI state is information on pseudo collocation (QCL: Quasi-Co-Location) of a channel or a signal, and may also be called a spatial reception parameter, spatial relation information (spatial relation information), or the like. The TCI state may be set for the UE on a per channel or per signal basis. The UE may determine at least one of a transmission beam (Tx beam) and a reception beam (Rx beam) of the channel based on the TCI state of the channel.

QCL is an index indicating a statistical property of a signal / channel. For example, if one signal / channel and another signal / channel are in a QCL relationship, doppler shift (doppler shift), doppler spread (doppler spread), average delay (average delay) between these different signals / channels. ), Delay spread (delay @ spread), and spatial parameter (Spatial @ parameter) (e.g., spatial reception parameter (Spatial @ Rx @ Parameter)) means that it can be assumed to be the same (QCL for at least one of these). May be.

Note that the spatial reception parameter may correspond to a reception beam (for example, a reception analog beam) of the UE, and the beam may be specified based on the spatial QCL. QCL (or at least one element of QCL) in the present disclosure may be read as sQCL (spatialpatQCL).

A plurality of types (QCL types) may be defined for the QCL. For example, four QCL types AD with different parameters (or parameter sets) that can be assumed to be the same may be provided, and are described below.
QCL type A: Doppler shift, Doppler spread, average delay and delay spread,
・ QCL type B: Doppler shift and Doppler spread,
QCL type C: Doppler shift and average delay,
QCL type D: spatial reception parameters.

The TCI state is determined, for example, between a target channel (or a reference signal (RS: Reference Signal) for the channel) and another signal (for example, another downlink reference signal (DL-RS: Downlink Reference Signal)). It may be information on QCL. The TCI state may be set (instructed) by higher layer signaling, physical layer signaling, or a combination thereof.

The channels for which the TCI state is set (specified) are, for example, a downlink shared channel (PDSCH: Physical Downlink Control Channel), a downlink control channel (PDCCH: Physical Downlink Control Channel), an uplink shared channel (PUSCH: Physical Uplink Shared Channel), It may be at least one of an uplink control channel (PUCCH: Physical Uplink Control Channel).

The RS that has a QCL relationship with the channel may be, for example, at least one of an SSB, a CSI-RS, and a reference signal for measurement (SRS: Sounding Reference Signal).

FIG. 3 is a diagram showing an example of the RRC information element related to the TCI state.

As shown in FIG. 3, the TCI state information (“TCI-State”) may include a TCI state ID and one or more pieces of QCL information (“QCL-Info”). The QCL information may include at least one of information on a DL-RS having a QCL relationship (RS-related information (“referenceSignal”)) and information indicating a 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.

(Multi TRP / Multi Panel)
In NR, it is considered that a plurality of transmission / reception points (TRP: Transmission / Reception Point) (multi-TRP) or a plurality of panels (multi-panel) perform non-coherent DL (for example, PDSCH) transmission.

In a multi-TRP / multi-panel scenario, multiple CSI types are required to be reported for dynamic scheduling. 4A-4D are diagrams illustrating examples of CSI feedback in a multi-TRP scenario. In this example, TRP1 and TRP2 can each transmit to the UE using four beams.

In the case of FIG. 4A, the UE calculates the interference measurement result (for example, SINR) in which beam 1 from TRP1 is the signal component (S) and beam 5 from TRP2 is included in the interference component (I), and performs CSI feedback. May be.

4B, the UE may calculate the interference measurement result in which the beam 1 from TRP1 is the signal component (S) and the beam 6 from TRP2 is included in the interference component (I), and may feed back the CSI.

In the case of FIG. 4C, the UE may calculate the interference measurement result in which the beam 8 from the TRP 2 is the signal component (S) and the beam 2 from the TRP 1 is included in the interference component (I), and feed back the CSI.

4D, the UE may calculate the interference measurement result in which the beam 8 from TRP2 is the signal component (S) and the beam 1 from TRP1 is included in the interference component (I), and may feed back the CSI.

In this way, the UE reports signal measurements (channel measurements) based on different beams from different TRPs (or panels), interference measurements based on different beams from adjacent TRPs (or panels), etc. in one CSI report Preferably it is possible.

However, in the NR specifications considered so far, the UE has a NZP @ CSI-RS resource for channel measurement and an NZP @ CSI-RS or CSI-IM resource for interference measurement configured for one CSI report. From the viewpoint of resources, it may be assumed that it is a QCL (corresponding to “QCL type D”) (resource-wise {QCLed} with {respect} to {'QCL-TypeD').

That is, the NR specifications so far only support CSI type CSI report settings based on RS from the same TRP (or panel). Therefore, if the conventional NR specifications are used, the UE cannot transmit CSI reports of different CSI types based on RSs from different TRPs (or panels) at an appropriate timing, and the communication throughput may be reduced.

Therefore, the present inventors have conceived of a setting method for appropriately executing CSI reports of a plurality of CSI types for a plurality of TRPs (or panels).

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

In the description of the present disclosure, TRP, codeword, reference signal resource, reference signal antenna port, antenna port group, predetermined channel (for example, PDSCH), beam, panel (antenna panel), a plurality of antenna elements, etc. May be read as each other. Here, the reference signal may be, for example, a DMRS. The TRP of a certain sentence may be replaced by a panel, and the TRP of another sentence may be replaced by a codeword.

(Wireless communication method)
<First embodiment>
In the first embodiment, the UE may include one or more CSI sets related to multiple TRPs in one CSI report configuration (RRC information element “CSI-reportConfig”). That is, each set (RS of each set) may correspond to a different TRP. One CSI set may include one or more CSI types. Note that the CSI set may be read as a set of RSs for CSI measurement (or channel measurement or interference measurement).

各 Each RS to be measured (CSI-RS, SSB, etc.) may be associated with a TRP. For example, the CSI-RS transmitted using beam 1 of FIGS. 4A-4D is configured for the UE in association with TRP1, and the CSI-RS transmitted using beam 8 is associated with the UE in association with TRP2. It may be set. According to this configuration, the signal components (S) of different TRPs can be suitably measured. The UE may report one or more CSI types to the base station based on the settings of the multiple CSI sets.

[Setting of correspondence between RS and panel]
A correspondence between an RS (eg, CSI-RS, SSB) and TRP for channel measurement or interference measurement may be set in the UE using higher layer signaling (eg, RRC signaling, MAC signaling).

For example, the correspondence between CSI-RS and TRP may be set for each TCI state, may be set for each NZP CSI-RS, or may be set for each set of NZP CSI-RS. . That is, the information on the correspondence between the CSI-RS and the TRP may be included in at least one of the following and set in the UE:
-TCI state information ("TCI-State") or QCL information ("QCL-Info"),
NZP CSI-RS resource information (“NZP-CSI-RS-Resource”),
-NZP CSI-RS resource set information ("NZP-CSI-RS-ResourceSet").

For example, the correspondence between SSB and TRP may be set for each SSB, or may be set for each set of SSB. That is, the correspondence between SSB and TRP may be set in the UE using at least one of the following:
-SSB index information ("SSB-Index"),
-CSI-SSB resource set information ("CSI-SSB-ResourceSet").

FIGS. 5A and 5B are diagrams showing examples of RRC parameters related to the correspondence between CSI-RS and TRP. In this example, it is assumed that TRP is associated with a DMRS port group.

FIG. 5A shows an example in which information on the correspondence between CSI-RS and TRP is included in NZP CSI-RS resource information (“NZP-CSI-RS-Resource”). FIG. 5A differs from the existing NZP @ CSI-RS resource information in FIG. 2A in that the information of the DMRS port group corresponding to this CSI-RS resource includes a DMRS port group ID (“DMRSPortGroup-ID”). .

FIG. 5B shows an example in which information on the correspondence between CSI-RS and TRP is included in NZPＳＩCSI-RS resource set information (“NZP-CSI-RS-ResourceSet”). FIG. 5B includes the existing NZP @ CSI-RS resource set information of FIG. 2A in that a DMRS port group ID (“DMRSPortGroup-ID”) is included as information of the DMRS port group corresponding to the CSI-RS resource set. And different.

Note that, in place of or together with the DMRS port group ID, an ID relating to at least one of a TRP, a codeword, an antenna port, a predetermined channel, a beam, and a panel may be included in any of the above RRC information elements. Good. Further, the correspondence between the RS (for example, CSI-RS, SSB) and the TRP may be set by being included in an RRC information element or a parameter other than the above-described RRC information element.

[Settings for multiple CSI sets]
A plurality of CSI sets each indicating an RS corresponding to the TRP may be configured in the UE using higher layer signaling (eg, RRC signaling, MAC signaling).

For example, multiple CSI sets may be configured according to at least one of the following:
(1) Resource information for channel measurement (“resourcesForChannelMeasurement”), NZP CSI-RS resource information for interference measurement (“nzp-CSI-RS-ResourcesForInterference”), and CSI-IM resource information for interference measurement (“csi-IM-ResourcesForInterference”) )) (Or a set including at least one of them) is set a plurality of times in the CSI report configuration information (“CSI-ReportConfig”).
(2) A plurality of CSI-RS resource set list information (“csi-RS-ResourceSetList”) (or a set including the information) is set in the CSI resource setting information (“CSI-ResourceConfig”).
(3) At least one of (or the information of) NZP CSI-RS and SSB for measurement (“nzp-CSI-RS-SSB”) and CSI-IM resource set list information (“csi-IM-ResourceSetList”) Are set in the CSI resource configuration information (“CSI-ResourceConfig”),
(4) NZP CSI-RS resource set list information (“nzp-CSI-RS-ResourceSetList”), SSB resource set list information for CSI measurement (“csi-SSB-ResourceSetList”), and CSI-IM resource set list information At least one (or a set including at least one of these) is set in the CSI resource configuration information (“CSI-ResourceConfig”).

シ グ ナ リ ン グ The signaling configuration for the above settings (1)-(4) will be described with reference to FIGS. 6-9. In any configuration, the correspondence between the CSI-RS or SSB and the panel may be set as described above.

FIGS. 6A and 6B are diagrams illustrating an example of an RRC information element related to CSI report configuration in which a plurality of CSI sets can be configured.

FIG. 6A shows an example in which two sets of channel measurement resource information (“resourcesForChannelMeasurement”) are included in CSI report configuration information (“CSI-ReportConfig”). FIG. 6A includes the second channel measurement resource information (“resourcesForChannelMeasurement-R16”) in addition to the first channel measurement resource information (“resourcesForChannelMeasurement”). Different from CSI report setting information.

Note that “-R16” or “-r16” is 3GPP @ Rel. 16 means a field or parameter defined (used), but the field name, parameter name, defined release, etc. are not limited to this example.

The second channel measurement resource information also corresponds to the CSI resource setting ID. “CSI-ResourceConfigId-r16” shown in the present example may be defined to have the same value range as “CSI-ResourceConfigId” or may be defined to have a different value range.

All RSs configured in one CSI resource configuration information (“CSI-ResourceConfig”) may be associated with the same panel. On the other hand, the RS set in the CSI resource setting information corresponding to the first channel measurement resource information is different from the RS set in the CSI resource setting information corresponding to the second channel measurement resource information. May be related to

FIG. 6B shows two sets of channel measurement resource information (“resourcesForChannelMeasurement”) and interference measurement CSI-IM resource information (“csi-IM-ResourcesForInterference”) included in the CSI report configuration information (“CSI-ReportConfig”). Here is an example. FIG. 6B shows the second CSI-IM resource information for interference measurement (“csi-IM-ResourcesForInterference-R16”) in addition to the first CSI-IM resource information for interference measurement (“csi-IM-ResourcesForInterference”). 6) is different from the CSI report setting information in FIG. 6A.

All RSs configured in one CSI resource configuration information (“CSI-ResourceConfig”) may be associated with the same panel. On the other hand, the RS or IM resource set in the CSI resource setting information corresponding to the first interference measurement CSI-IM resource information is the CSI resource setting corresponding to the second interference measurement CSI-IM resource information. It may relate to a different panel than the RS or IM resources set in the information.

{Note that RS or IM resources set in CSI resource setting information corresponding to parameters corresponding to the same 3GPP release may be associated with the same panel. For example, RS or IM resources set in CSI resource setting information corresponding to “resourcesForChannelMeasurement-R16” and “csi-IM-ResourcesForInterference-R16” may be associated with the same panel.

FIG. 7 is a diagram illustrating a first example of an RRC information element related to CSI resource configuration in which a plurality of CSI sets can be configured. FIG. 7 illustrates an example in which two sets of CSI-RS resource set list information (“csi-RS-ResourceSetList”) are included in the CSI resource setting information (“CSI- @ ResourceConfig”). FIG. 7 shows the second CSI-RS resource set list information (“csi-RS-ResourceSetList-R16”) in addition to the first CSI-RS resource set list information (“csi-RS-ResourceSetList”). Is different from the existing CSI resource setting information in FIG. 1B.

The second CSI-RS resource set list information may include the same fields, parameters, and the like as the first CSI-RS resource set list information. In this example, the second CSI-RS resource set list information is 3GPP @ Rel. 16 (fields) or parameters defined (used).

All RSs set in one CSI-RS resource set list information (“csi-RS-ResourceSetList”) may be associated with the same panel. On the other hand, the RS set in the first CSI-RS resource set list information may be associated with a different panel from the RS set in the second CSI-RS resource set list information.

FIG. 8 is a diagram illustrating a second example of the RRC information element related to the CSI resource setting in which a plurality of CSI sets can be set. FIG. 8 shows that the CSI-RS resource set list information (“csi-RS-ResourceSetList”) included in the CSI resource configuration information (“CSI- @ ResourceConfig”) contains two sets of information of NZP @ CSI-RS and SSB (“nzp -CSI-RS-SSB ") and CSI-IM resource set list information (" csi-IM-ResourceSetList ").

FIG. 8 shows the information of the NZP @ CSI-RS and SSB of the first set (“nzp-CSI-RS-SSB”) and the CSI-IM resource set list information (“csi-RS -IM-ResourceSetList "), NZP @ CSI-RS and SSB information of the second set (" nzp-CSI-RS-SSB-r16 "), and CSI-IM resource set list information (" csi-IM-ResourceSetList-16 ”), which is different from the existing CSI resource setting information in FIG. 1B.

The NZP @ CSI-RS and SSB information of the second set and the CSI-IM resource set list information are the same fields as the NZP @ CSI-RS and SSB information and the CSI-IM resource set list information of the first set, respectively. , Parameters, and the like. In this example, the second set is 3GPP @ Rel. 16 (fields) or parameters defined (used).

All RSs (or IMs) set in one NZP @ CSI-RS and SSB information ("nzp-CSI-RS-SSB") or CSI-IM resource set list information ("csi-IM-ResourceSetList") , May be associated with the same panel. On the other hand, the RS (or IM) set in the first set of information may be associated with a different panel from the RS (or IM) set in the second set of information.

FIG. 9 is a diagram illustrating a third example of the RRC information element related to the CSI resource setting in which a plurality of CSI sets can be set. FIG. 9 shows two sets of NZP @ CSI-RS resource set list information in NZP @ CSI-RS and SSB information ("nzp-CSI-RS-SSB") included in CSI resource configuration information ("CSI- @ ResourceConfig"). An example is shown that includes (“nzp-CSI-RS-ResourceSetList”) and SSB resource set list information (“csi-SSB-ResourceSetList”) for CSI measurement.

FIG. 9 shows NZP @ CSI-RS and SSB information in the first set of NZP @ CSI-RS resource set list information ("nzp-CSI-RS-ResourceSetList") and SSB resource set list information for CSI measurement. In addition to ("csi-SSB-ResourceSetList"), the second set of NZP @ CSI-RS resource set list information ("nzp-CSI-RS-ResourceSetList-r16") and SSB resource set list for CSI measurement This is different from the existing CSI resource setting information in FIG. 1B in that the information includes information (“csi-SSB-ResourceSetList-r16”).

The second set of NZP @ CSI-RS resource set list information and the SSB resource set list information for CSI measurement are respectively the first set of NZP @ CSI-RS resource set list information and SSB resource for CSI measurement. It may include the same fields and parameters as the set list information. In this example, the second set is 3GPP @ Rel. 16 (fields) or parameters defined (used).

All RSs configured in {1 NZP} CSI-RS resource set list information or SSB resource set list information for CSI measurement may be associated with the same panel. On the other hand, the RS set in the first set of information may be associated with a different panel from the RS set in the second set of information.

By using the CSI resource setting information of FIG. 7-9, the existing channel information, NZP @ CSI-RS resource information for interference measurement, and CSI-IM resource information for interference measurement can be included at most one each. Even if the CSI report setting information (FIG. 1A) is used, a plurality of CSI sets can be set in the UE.

According to the first embodiment described above, the UE can appropriately report a plurality of CSI types based on CSI report settings or resource settings for different panels.

<Second embodiment>
The second embodiment relates to the measurement of inter-TRP interference (which may be read as inter-beam interference, codeword interference, inter-panel interference, etc., as described above).

The UE may calculate the CSI of one codeword (TRP, panel, etc.) based on some interference assumptions. The assumption is that the inter-TRP interference can be derived from the resource element for the signal (RE: Resource @ Element) (ie, SMR (NZP @ CSI-RS resource, SSB resource, etc.)), and the RE is It may be assumed that it corresponds to a codeword.

想 定 For the above-mentioned interference assumption, for example, at least one of the following two methods may be used. The first method is to set the IMR for a certain TRP (assuming TRP1) to the same RE as the SMR for another TRP (assuming TRP2). The second method is to derive the inter-TRP interference for TRP1 based on channel measurements obtained from at least one of the other SMR and the precoding matrix from TRP2. These methods will be described with reference to FIGS. 10A and 10B.

FIGS. 10A and 10B are diagrams showing an example of settings for inter-TRP interference measurement. FIG. 10A shows a similar multi-TRP scenario as FIG. 4A, assuming that beam 5 of TRP2 causes beam 1 of TRP1 to undergo inter-TRP interference. Also assume that TRP1 transmits CSI-RS1 using beam 1 and TRP2 transmits CSI-RS5 using beam 5.

FIG. 10B is a diagram showing an example of resources of CSI-RS1 and 5. It is assumed that the resource of CSI-RS1 and the resource of CSI-RS5 do not overlap. The CSI corresponding to the TRP interference corresponds to CSI (hereinafter, simply referred to as CSI1) in which the resource of CSI-RS1 is SMR. The problem is how to calculate the interference component of the CSI.

で は In the first method described above, the UE may set the IMR for CSI1 as the same RE as the resource of CSI-RS5. That is, the UE transmits NZP @ CSI-RS resource information for interference measurement (“nzp-CSI-RS-ResourcesForInterference”), CSI-IM resource information for interference measurement (“csi-IM-ResourcesForInterference”) for CSI1 reporting, At least one of CSI-IM resource set list information (“csi-IM-ResourceSetList”), CSI-IM resource set information (“csi-IM-ResourceSet”) and CSI-IM resource information (“csi-IM-Resource”) On the other hand, the same RE as the resource of CSI-RS5 may be set.

In this case, the interference component of CSI1 (inter-TRP interference) is determined by interference measurement based on the IMR using the same beam or spatial filter as the beam or spatial filter for receiving the SMR (resource of CSI-RS1) from TRP1. , May be derived.

で は In the second method described above, the UE performs channel measurement based on CSI-RS5 resources. The UE may use the measurement result as an interference component of CSI1 (inter-TRP interference).

ＲThe RRC setting described in the first embodiment may be used for the inter-TRP interference measurement in the second embodiment.

According to the second embodiment described above, the UE can appropriately measure the inter-TRP interference.

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

FIG. 11 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 LTE (Long Term Evolution) and 5G NR (5th generation mobile communication system New Radio) specified by 3GPP (Third Generation Partnership Project). .

Also, the wireless communication system 1 may support dual connectivity between a plurality of RATs (Radio Access Technology) (multi-RAT dual connectivity (MR-DC: Multi-RAT Dual Connectivity)). MR-DC is based on dual connectivity (EN-DC: E-UTRA-NR @ Dual Connectivity) between LTE (Evolved Universal Terrestrial Radio Access) and NR, and dual connectivity (NE-DC with E-UTRA-NR Dual Connectivity). -DC: NR-E-UTRA (Dual Connectivity) may be included.

In @ EN-DC, the base station (eNB) of LTE (E-UTRA) is a master node (MN: Master @ Node), and the base station (gNB) of NR is a secondary node (SN: Secondary @ Node). 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 a plurality of base stations in the same RAT (for example, dual connectivity in which both MN and SN are NR base stations (gNB) (NN-DC: NR-NR Dual Connectivity)). ) May be supported.

The wireless communication system 1 includes a base station 11 forming a macro cell C1 having relatively wide coverage, and a base station 12 (12a to 12c) arranged in the macro cell C1 and forming a small cell C2 smaller than the macro cell C1. May be provided. User terminal 20 may be located in at least one cell. The arrangement, number, and the like of each cell and the user terminals 20 are not limited to the modes shown in the figure. Hereinafter, when the base stations 11 and 12 are not distinguished, they are collectively referred to as a 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 (Carrier Aggregation) using a plurality of component carriers (CC: Component Carrier) and dual connectivity (DC).

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

In addition, the user terminal 20 may perform communication using at least one of time division duplex (TDD: Time Division Duplex) and frequency division duplex (FDD: Frequency Division Duplex) in each CC.

The plurality of base stations 10 may be connected by wire (for example, an optical fiber compliant with CPRI (Common Public Radio Interface), an X2 interface, or the like) or wirelessly (for example, NR communication). For example, when NR communication is used as a backhaul between the base stations 11 and 12, the base station 11 corresponding to the upper station is an IAB (Integrated Access Backhaul) donor, and the base station 12 corresponding to the relay station (relay) is the IAB It may 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 that supports at least one of the communication systems such as LTE, LTE-A, and 5G.

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

The wireless access scheme may be referred to as a waveform. In the wireless communication system 1, another wireless access method (for example, another single carrier transmission method or another multi-carrier transmission method) may be used for the UL and DL wireless access methods.

In the wireless communication system 1, a downlink shared channel (PDSCH: Physical Downlink Shared Channel), a broadcast channel (PBCH: Physical Broadcast Channel), and a downlink control channel (PDCCH: Physical Downlink Control) are shared by the user terminals 20 as downlink channels. Channel) may be used.

In the wireless communication system 1, as an uplink channel, an uplink shared channel (PUSCH: Physical Uplink Shared Channel) shared by each user terminal 20, an uplink control channel (PUCCH: Physical Uplink Control Channel), a random access channel (PRACH) : Physical Random Access Channel) or the like may be used.

The user data, upper layer control information, SIB (System Information Block), and the like are transmitted by the PDSCH. User data, higher layer control information, and the like may be transmitted by the PUSCH. In addition, MIB (Master Information Block) may be transmitted by PBCH.

下 位 Lower layer control information may be transmitted by the PDCCH. The lower layer control information may include, for example, downlink control information (DCI: Downlink Control Information) including scheduling information of at least one of the PDSCH and the PUSCH.

Note that the DCI for scheduling the PDSCH may be referred to as DL assignment, DL @ DCI, or the like, and the DCI for scheduling the PUSCH may be referred to as UL grant, UL @ DCI, or the like. Note that PDSCH may be replaced with DL data, and PUSCH may be replaced with UL data.

A control resource set (CORESET: Control REsource SET) and a search space (search space) may be used for detecting the PDCCH. CORESET corresponds to a resource for searching DCI. The search space corresponds to a search area and a search method of PDCCH candidates (PDCCH @ candidates). One coreset may be associated with one or more search spaces. The UE may monitor a RESET associated with a search space based on the search space settings.

One SS may correspond to a PDCCH candidate corresponding to one or a plurality of aggregation levels (aggregation Level). One or more search spaces may be referred to as a search space set. In addition, “search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, and the like in the present disclosure may be interchanged with each other.

By PUCCH, acknowledgment information of channel state information (CSI: Channel \ State \ Information) (for example, may be called HARQ-ACK (Hybrid \ Automatic \ Repeat \ reQuest), ACK / NACK, etc.), scheduling request (SR: Scheduling \ Request) ) May be transmitted. A random access preamble for establishing a connection with a cell may be transmitted by the PRACH.

In the present disclosure, a downlink, an uplink, and the like may be expressed without a “link”. In addition, various channels may be expressed without “Physical” at the beginning.

In the wireless communication system 1, a synchronization signal (SS: Synchronization Signal), a downlink reference signal (DL-RS: Downlink Reference Signal), or the like may be transmitted. In the wireless communication system 1, as a DL-RS, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), and a demodulation reference signal (DMRS: DeModulation) are provided. Reference Signal, a position determination reference signal (PRS: Positioning Reference Signal), a phase tracking reference signal (PTRS: Phase Tracking Reference Signal), and the like may be transmitted.

The synchronization signal may be, for example, at least one of a primary synchronization signal (PSS: Primary Synchronization Signal) and a secondary synchronization signal (SSS: Secondary Synchronization Signal). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be referred to as SS / PBCH block, SSB (SS @ Block), and the like. Note that SS, SSB, and the like may also be referred to as reference signals.

In the wireless communication system 1, a measurement reference signal (SRS: Sounding Reference Signal), a demodulation reference signal (DMRS), and the like may be transmitted as an uplink reference signal (UL-RS: Uplink Reference Signal). The DMRS may be called a user terminal specific reference signal (UE-specific Reference Signal).

(base station)
FIG. 12 is a diagram illustrating an example of a configuration of a base station according to one embodiment. The base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission line interface 140. The control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140 may each include one or more.

Note that, in this example, functional blocks of characteristic portions in the present embodiment are mainly shown, and it may be assumed that base station 10 also has other functional blocks necessary for wireless communication. Some of the processes 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 by a controller, a control circuit, and the like described based on common recognition in the technical field according to the present disclosure.

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

The transmission / reception unit 120 may include a baseband unit 121, an RF (Radio Frequency) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transmission / reception unit 120 includes a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measurement circuit, a transmission / reception circuit, and the like described based on common recognition in the technical field according to the present disclosure. be able to.

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

The transmission / reception antenna 130 can be configured from an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna or the like.

The transmission / reception unit 120 may transmit the above-described downlink channel, synchronization signal, downlink reference signal, and the like. The transmission / reception unit 120 may receive the above-described uplink channel, uplink reference signal, and the like.

The transmission / reception unit 120 may form at least one of the transmission beam and the reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), or the like.

The transmission / reception unit 120 (transmission processing unit 1211) processes the data, control information, and the like acquired from the control unit 110 in the PDCP (Packet Data Convergence Protocol) layer and the RLC (Radio Link Control) layer processing (for example, RLC retransmission control), MAC (Medium Access Control) layer processing (for example, HARQ retransmission control), and the like may be performed to generate a bit string to be transmitted.

The transmission / reception unit 120 (transmission processing unit 1211) performs channel coding (may include error correction coding), modulation, mapping, filter processing, and discrete Fourier transform (DFT: Discrete Fourier Transform) processing on a bit string to be transmitted. Transmission processing such as Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-analog conversion (if necessary) may be performed to output a baseband signal.

The transmission / reception unit 120 (RF unit 122) may perform modulation, filtering, amplification, and the like on the baseband signal into a radio frequency band, and transmit the signal in the radio frequency band via the transmission / reception antenna 130. .

On the other hand, the transmission / reception unit 120 (RF unit 122) may perform amplification, filtering, demodulation to a baseband signal, and the like on the radio frequency band signal received by the transmission / reception antenna 130.

The transmission / reception unit 120 (reception processing unit 1212) performs analog-to-digital conversion, fast Fourier transform (FFT), and inverse discrete Fourier transform (IDFT) on the acquired baseband signal. Applying reception processing such as processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, Etc. may be obtained.

The transmission / reception unit 120 (measurement unit 123) may measure the received signal. For example, the measurement unit 123 may perform RRM (Radio Resource Management) measurement, CSI (Channel State Information) measurement, or the like based on the received signal. The measuring unit 123 receives the reception power (for example, RSRP (Reference Signal Received Power)), reception quality (for example, RSRQ (Reference Signal Received Quality), SINR (Signal to Interference plus Noise Ratio, SNR (Signal to Noise Ratio)). , Signal strength (for example, RSSI (Received Signal Strength Indicator)), propagation path information (for example, CSI), and the like. The measurement result may be output to the control unit 110.

The transmission line interface 140 transmits / receives signals (backhaul signaling) to / from a device included in the core network 30 or another base station 10, and transmits user data (user plane data) for the user terminal 20; Data and the like may be obtained and transmitted.

The transmission unit and the reception unit of the base station 10 according to the present disclosure may be configured by at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140.

In addition, the transmission / reception unit 120 includes one or a plurality of CSI report configuration information (for example, an RRC information element “CSI-ReportConfig”) and one or a plurality of CSI resource configuration information (for example, an RRC information element “CSI-ResourceConfig”). May be transmitted to the user terminal 20.

The control unit 110 may control the user terminal 20 to make a plurality of CSI types (single-beam CSI, multi-beam CSI, etc.) CSI reports for one piece of the CSI report setting information.

(User terminal)
FIG. 13 is a diagram illustrating an example of a configuration of a user terminal according to an embodiment. The user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. Note that one or more of the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may be provided.

In this example, functional blocks of characteristic portions in the present embodiment are mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processes 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 by a controller, a control circuit, and the like described based on common recognition in the technical field according to the present disclosure.

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

The transmission / reception unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transmission / reception unit 220 can be configured from a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, and the like described based on common recognition in the technical field according to the present disclosure.

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

The transmission / reception antenna 230 can be configured from an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna or the like.

The transmission / reception unit 220 may receive the above-described downlink channel, synchronization signal, downlink reference signal, and the like. The transmission / reception unit 220 may transmit the above-described uplink channel, uplink reference signal, and the like.

The transmission / reception unit 220 may form at least one of the transmission beam and the reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), or the like.

The transmission / reception unit 220 (transmission processing unit 2211) performs processing of the PDCP layer, processing of the RLC layer (for example, RLC retransmission control), processing of the MAC layer (for example, for data, control information, and the like acquired from the control unit 210, for example). , HARQ retransmission control), etc., to generate a bit string to be transmitted.

The transmission / reception unit 220 (transmission processing unit 2211) performs channel coding (which may include error correction coding), modulation, mapping, filter processing, DFT processing (if necessary), IFFT processing on the bit sequence to be transmitted. , Precoding, digital-analog conversion, etc., and output a baseband signal.

Note that whether to apply the DFT processing may be based on the transform precoding setting. When transform precoding is enabled for a certain channel (for example, PUSCH), the transmission / reception unit 220 (transmission processing unit 2211) transmits the channel using the DFT-s-OFDM waveform. DFT processing may be performed as the transmission processing, or otherwise, DFT processing may not be performed as the transmission processing.

The transmission / reception unit 220 (RF unit 222) may perform modulation, filtering, amplification, and the like on the baseband signal into a radio frequency band, and transmit a signal in the radio frequency band via the transmission / reception antenna 230. .

On the other hand, the transmission / reception unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, and the like on the radio frequency band signal received by the transmission / reception 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, decoding (error correction) on the obtained baseband signal. Decoding may be included), reception processing such as MAC layer processing, RLC layer processing, and PDCP layer processing may be applied to acquire user data and the like.

The transmission / reception unit 220 (measurement unit 223) may measure the received signal. For example, the measurement unit 223 may perform RRM measurement, CSI measurement, and the like based on the received signal. The measurement unit 223 may measure received power (for example, RSRP), received quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), channel information (for example, CSI), and the like. The measurement result may be output to the control unit 210.

The transmitting unit and the receiving unit of the user terminal 20 according to the present disclosure may be configured by at least one of the transmitting / receiving unit 220, the transmitting / receiving antenna 230, and the transmission line interface 240.

The transmission / reception unit 220 includes one or a plurality of CSI report configuration information (for example, an RRC information element “CSI-ReportConfig”) and one or a plurality of CSI resource configuration information (for example, an RRC information element “CSI-ResourceConfig”). Etc. may be received.

The control unit 210 may control CSI reports of a plurality of CSI types (single-beam CSI, multi-beam CSI, etc.) for one piece of the CSI report setting information.

The control unit 210 uses a reference signal resource (SMR, IMR, NZP @ CSI-RS resource) for measurement on the CSI type based on higher layer signaling (for example, the signaling configuration of the settings (1) to (4)). , CSI-IM resource, ZP @ CSI-RS resource, etc.), a transmission / reception point, a panel, a beam, a codeword, an antenna port, and the like may be specified.

The one CSI report setting information or one CSI resource setting information corresponding to the one CSI report setting information includes a plurality of resource information for channel measurement and at least one of resource information for interference measurement, The plurality of pieces of information may be respectively associated with different transmission / reception points.

The resource information for channel measurement includes, for example, channel measurement resource information (“resourcesForChannelMeasurement”), CSI-RS resource set list information (“csi-RS-ResourceSetList”), NZP @ CSI-RS, and SSB information (“ nzp-CSI-RS-SSB "), NZP @ CSI-RS resource set list information (" nzp-CSI-RS-ResourceSetList "), SSB resource set list information for CSI measurement (" csi-SSB-ResourceSetList "), etc. May be at least one of the following.

The resource information for the interference measurement includes NZP @ CSI-RS resource information for interference measurement ("nzp-CSI-RS-ResourcesForInterference"), CSI-IM resource information for interference measurement ("csi-IM-ResourcesForInterference"), CSI -It may be at least one of RS resource set list information ("csi-RS-ResourceSetList") and CSI-IM resource set list information ("csi-IM-ResourceSetList").

The control unit 210 may assume that the interference measurement resource (IMR) for the first transmission / reception point is set as the same resource element as the signal measurement resource (SMR) for the second transmission / reception point.

The control unit 210 derives interference between transmission / reception points for the first transmission / reception point (inter-TRP interference) based on channel measurement using a signal measurement resource (SMR) for the second transmission / reception point. Is also good.

(Hardware configuration)
Note that the block diagram used in the description of the above-described embodiment shows blocks in functional units. These functional blocks (components) are realized by an arbitrary combination of at least one of hardware and software. In addition, a method of implementing each functional block is not particularly limited. That is, each functional block may be realized using one device physically or logically coupled, or directly or indirectly (for example, two or more devices physically or logically separated from each other). , Wired, wireless, etc.), and may be implemented using these multiple devices. The functional block may be realized by combining one device or the plurality of devices with software.

Here, the functions include judgment, determination, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, and deemed. , Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. Not limited. For example, a functional block (configuration unit) that causes transmission to function may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like. In any case, as described above, the realization method is not particularly limited.

For example, a base station, a user terminal, or the like according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method according to the present disclosure. FIG. 14 is a diagram illustrating an example of a hardware configuration of the base station and the user terminal according to the embodiment. The above-described base station 10 and user terminal 20 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, and the like. .

In the present disclosure, the terms such as “apparatus”, “circuit”, “device”, “section”, and “unit” 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 the devices illustrated in the drawing, or may be configured to exclude some of the devices.

For example, although only one processor 1001 is illustrated, there may be multiple processors. Further, the processing may be executed by one processor, or the processing may be executed by two or more processors simultaneously, sequentially, or by using another method. Note that the processor 1001 may be implemented by one or more chips.

The functions of the base station 10 and the user terminal 20 are performed, for example, by reading predetermined software (program) on hardware such as the processor 1001 and the memory 1002 so that the processor 1001 performs an arithmetic operation and communicates via the communication device 1004. And controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.

The processor 1001 controls the entire computer by operating an operating system, for example. The processor 1001 may be configured by a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like. For example, at least a part of the control unit 110 (210), the transmitting / receiving unit 120 (220), and the like may be realized by the processor 1001.

The processor 1001 reads out a program (program code), a software module, data, and the like from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to these. As the program, a program that causes a computer to execute at least a part of the operation described in the above embodiment is used. For example, the control unit 110 (210) may be realized by a control program stored in the memory 1002 and operated by the processor 1001, and other functional blocks may be similarly realized.

The memory 1002 is a computer-readable recording medium, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically EPROM), RAM (Random Access Memory), and other appropriate storage media. It may be constituted by one. The memory 1002 may be called a register, a cache, a main memory (main storage device), or the like. The memory 1002 can store a program (program code), a software module, and the like that can be executed to implement the 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 (Compact Disc) ROM, etc.), a digital versatile disc, At least one of a Blu-ray (registered trademark) disk, a removable disk, a hard disk drive, a smart card, a flash memory device (eg, a card, a stick, a key drive), a magnetic stripe, a database, a server, and other suitable storage media. May be configured. The storage 1003 may be called an auxiliary storage device.

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

The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an external input. The output device 1006 is an output device that performs output to the outside (for example, a display, a speaker, an LED (Light Emitting Diode) lamp, and the like). Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).

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

In addition, the base station 10 and the user terminal 20 include hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include hardware, and some or all of the functional blocks may be realized using the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

(Modification)
Note that terms described in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meaning. For example, channels, symbols and signals (signals or signaling) may be read interchangeably. Also, the signal may be a message. The reference signal may be abbreviated as RS (Reference Signal), and may be referred to as a pilot, a pilot signal, or the like according to an applied standard. A component carrier (CC: Component Carrier) may be called a cell, a frequency carrier, a carrier frequency, or the like.

A radio frame may be configured by one or more periods (frames) in the time domain. The one or more respective periods (frames) forming the radio frame may be referred to as a subframe. Further, a subframe may be configured by one or more slots in the time domain. The subframe may be of a fixed length of time (eg, 1 ms) that does not depend on numerology.

Here, the new melology 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 interval (SCS: SubCarrier @ Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission @ Time @ Interval), number of symbols per TTI, radio frame configuration, transmission and reception. At least one of a specific filtering process performed by the transceiver in the frequency domain and a specific windowing process performed by the transceiver in the time domain may be indicated.

The slot may be configured by one or a plurality of symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain. Further, the slot may be a time unit based on numerology.

The slot may include a plurality of mini slots. Each minislot may be constituted by one or more symbols in the time domain. Also, the mini-slot may be called a sub-slot. A minislot may be made up of a smaller number of symbols than slots. A PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be referred to as a PDSCH (PUSCH) mapping type B.

Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals. The radio frame, the subframe, the slot, the minislot, and the symbol may have different names corresponding to each. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be interchanged with each other.

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. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in the existing LTE, a period shorter than 1 ms (for example, 1 to 13 symbols), or a period longer than 1 ms. It may be. Note that the unit representing the TTI may be called a slot, a minislot, or the like instead of a subframe.

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

The TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, a time section (for example, the number of symbols) in which a transport block, a code block, a codeword, and the like are actually mapped may be shorter than the TTI.

If one slot or one minislot is called a TTI, one or more TTIs (ie, one or more slots or one or more minislots) may be the minimum time unit for scheduling. Further, the number of slots (mini-slot number) constituting the minimum time unit of the scheduling may be controlled.

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

Note that a long TTI (for example, a normal TTI, a subframe, etc.) may be read as a TTI having a time length exceeding 1 ms, and a short TTI (for example, a shortened TTI, etc.) may be replaced with a TTI shorter than the long TTI and 1 ms. The TTI having the above-described TTI length may be replaced with the TTI.

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

Ｒ Also, the 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, and the like may each be configured by one or a plurality of resource blocks.

One or a plurality of RBs include a physical resource block (PRB: Physical @ RB), a subcarrier group (SCG: Sub-Carrier @ Group), a resource element group (REG: Resource @ Element @ Group), a PRB pair, an RB pair, and the like. May be called.

{Also, a resource block may be composed of one or more resource elements (RE: Resource @ Element). For example, one RE may be a radio resource area of one subcarrier and one symbol.

A bandwidth part (BWP: Bandwidth @ Part) (which may be referred to as a partial bandwidth or the like) may also represent a subset of consecutive common RBs (common @ resource @ blocks) for a certain numerology in a certain carrier. Good. Here, the common RB may be specified by an index of the RB based on the common reference point of the carrier. A PRB may be defined by a BWP and numbered within the BWP.

$ BWP may include a BWP for UL (UL @ BWP) and a BWP for DL (DL @ BWP). For a UE, one or more BWPs may be configured in one carrier.

少 な く と も At least one of the configured BWPs may be active, and the UE does not have to assume to transmit and receive a given signal / channel outside the active BWP. Note that “cell”, “carrier”, and the like in the present disclosure may be replaced with “BWP”.

The structures of the above-described radio frame, subframe, slot, minislot, symbol, and the like 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, included in an RB The configuration of the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP: Cyclic Prefix) length, and the like can be variously changed.

Further, the information, parameters, and the like described in the present disclosure may be expressed using an absolute value, may be expressed using a relative value from a predetermined value, or may be expressed using another corresponding information. May be represented. For example, a radio resource may be indicated by a predetermined index.

名称 Names used for parameters and the like in the present disclosure are not limited in any respect. Further, the formulas and the like using these parameters may be different from those explicitly disclosed in the present disclosure. The various channels (PUCCH (Physical Uplink Control Channel), PDCCH (Physical Downlink Control Channel), etc.) and information elements can be identified by any suitable name, so the various names assigned to these various channels and information elements Is not a limiting name in any way.

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., that can be referred to throughout the above description are not limited to voltages, currents, electromagnetic waves, magnetic or magnetic particles, optical or photons, or any of these. May be represented by a combination of

情報 In addition, information, signals, and the like can be output from the upper layer to at least one of the lower layer and the lower layer to the upper layer. Information, signals, etc. may be input / output via a plurality of network nodes.

(4) Information and signals input and output may be stored in a specific place (for example, a memory) or may be managed using a management table. Information and signals that are input and output can be overwritten, updated, or added. The output information, signal, and the like may be deleted. The input information, signal, and the like may be transmitted to another device.

Notification of information is not limited to the aspect / embodiment described in the present disclosure, and may be performed using another method. For example, information notification in the present disclosure includes physical layer signaling (for example, downlink control information (DCI: Downlink Control Information), uplink control information (UCI: Uplink Control Information)), and upper layer signaling (for example, RRC (Radio Resource Control). ) Signaling, broadcast information (master information block (MIB: Master Information Block), system information block (SIB: System Information Block), etc.), MAC (Medium Access Control) signaling), other signals or a combination thereof. Is also good.

Note that the physical layer signaling may be called L1 / L2 (Layer 1 / Layer 2) control information (L1 / L2 control signal), L1 control information (L1 control signal), or the like. The RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like. Also, the MAC signaling may be notified using, for example, a MAC control element (MAC @ CE (Control @ Element)).

Further, the notification of the predetermined information (for example, the notification of “X”) is not limited to an explicit notification, and is implicit (for example, by not performing the notification of the predetermined information or by another information). May be performed).

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

Software, regardless of whether it is called software, firmware, middleware, microcode, a hardware description language, or any other name, instructions, instruction sets, codes, code segments, program codes, programs, subprograms, software modules , Applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.

ソ フ ト ウ ェ ア Also, software, instructions, information, and the like may be transmitted and received via a transmission medium. For example, if the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.), the website, When transmitted from a server or other remote source, at least one of these wired and / or wireless technologies is included within the definition of a transmission medium.

用語 The terms “system” and “network” as used in this disclosure may be used interchangeably.

In the present disclosure, “precoding”, “precoder”, “weight (precoding weight)”, “quasi-co-location (QCL)”, “TCI state (Transmission Configuration Indication state)”, “spatial relation” (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", "panel" are interchangeable Can be used for

In the present disclosure, “base station (BS: Base @ Station)”, “wireless base station”, “fixed station (fixed @ station)”, “NodeB”, “eNodeB (eNB)”, “gNodeB (gNB)”, “gNodeB (gNB)” "Access point (access @ point)", "transmission point (TP: Transmission @ Point)", "reception point (RP: Reception @ Point)", "transmission / reception point (TRP: Transmission / Reception @ Point)", "panel", "cell" , "Sector", "cell group", "carrier", "component carrier" and the like may be used interchangeably. A base station may also be referred to as a macro cell, a small cell, a femto cell, a pico cell, or the like.

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

In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user equipment” (UE), and “terminal” may be used interchangeably. .

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.

少 な く と も At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, or the like. Note that at least one of the base station and the mobile station may be a device mounted on the mobile unit, the mobile unit itself, or the like. The moving object may be a vehicle (for example, a car, an airplane, or the like), may be an unmanned moving object (for example, a drone, an autonomous vehicle), or may be a robot (maned or unmanned). ). Note that at least one of the base station and the mobile station includes a device that does not necessarily move during a communication operation. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

基地 Also, the base station in the present disclosure may be replaced with a user terminal. For example, communication between a base station and a user terminal is replaced with communication between a plurality of user terminals (for example, may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). Each aspect / embodiment of the present disclosure may be applied to the configuration. In this case, the configuration may be such that the user terminal 20 has the function of the base station 10 described above. Further, words such as “up” and “down” may be read as words corresponding to communication between terminals (for example, “side”). For example, an uplink channel, a downlink channel, and the like may be replaced with a side channel.

Similarly, a user terminal in the present disclosure may be replaced by a base station. In this case, a configuration in which the base station 10 has the function of the user terminal 20 described above may be adopted.

In the present disclosure, the operation performed by the base station may be performed by an upper node (upper node) in some cases. In a network including one or more network nodes having a base station (network @ nodes), various operations performed for communication with a terminal include a base station, one or more network nodes other than the base station (eg, Obviously, it can be performed by MME (Mobility Management Entity), S-GW (Serving-Gateway) or the like, but not limited thereto, or a combination thereof.

各 Each aspect / embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching with execution. In addition, the processing procedures, sequences, flowcharts, and the like of each aspect / embodiment described in the present disclosure may be interchanged in order as long as there is no inconsistency. For example, for the methods described in this disclosure, elements of various steps are presented in an exemplary order, and are not limited to the specific order presented.

Each aspect / embodiment described in the present disclosure is applicable to LTE (Long Term Evolution), LTE-A (LTE-Advanced), LTE-B (LTE-Beyond), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication). system), 5G (5th generation mobile communication system), FRA (Future Radio Access), New-RAT (Radio Access Technology), NR (New Radio), NX (New radio access), FX (Future generation radio access), GSM (Registered trademark) (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, UWB (Ultra-WideBand), Bluetooth (registered trademark) , A system using other appropriate wireless communication methods, and a next-generation system extended based on these methods. Further, a plurality of systems may be combined (for example, a combination of LTE or LTE-A and 5G) and applied.

記載 The term “based on” as used in the present disclosure does not mean “based on” unless otherwise indicated. In other words, the phrase "based on" means both "based only on" and "based at least on."

い か な る Any reference to elements using designations such as "first," "second," etc., as used in this disclosure, does not generally limit the quantity or order of those elements. These designations may be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not mean that only two elements can be employed or that the first element must precede the second element in any way.

用語 The term "determining" as used in this disclosure may encompass a wide variety of actions. For example, “judgment (decision)” means judging, calculating, computing, processing, deriving, investigating, searching (upping, searching, inquiry) ( For example, a search in a table, database, or another data structure), ascertaining, etc., may be regarded as "deciding".

Also, “determining” includes receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), and access ( accessing) (e.g., accessing data in a memory) or the like.

Also, “judgment (decision)” is regarded as “judgment (decision)” of resolving, selecting, selecting, establishing, comparing, etc. Is also good. That is, “judgment (decision)” may be regarded as “judgment (decision)” of any operation.

判断 Also, “judgment (decision)” may be read as “assuming”, “expecting”, “considering”, or the like.

As used in this disclosure, the terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements. And may include the presence of one or more intermediate elements between two elements "connected" or "coupled" to each other. The coupling or connection between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as “access”.

In this disclosure, where two elements are connected, using one or more wires, cables, printed electrical connections, etc., and as some non-limiting and non-exhaustive examples, the radio frequency domain, microwave It can be considered to be "connected" or "coupled" to each other using electromagnetic energy having a wavelength in the region, light (both visible and invisible) regions, and the like.

に お い て In the present disclosure, the term “A and B are different” may mean that “A and B are different from each other”. The term may mean that “A and B are different from C”. Terms such as "separate", "coupled" and the like may be interpreted similarly to "different".

Where the terms “include”, “including” and variations thereof are used in the present disclosure, these terms are as inclusive as the term “comprising” Is intended. Further, the term "or" as used in the present disclosure is not intended to be an exclusive or.

In the present disclosure, where articles are added by translation, for example, 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 obvious to 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 changes without departing from the spirit and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is intended for illustrative purposes and does not bring any restrictive meaning to the invention according to the present disclosure.

Claims (6)

1. A receiving unit that receives channel state information (CSI) report setting information;
   A control unit for controlling CSI reports of a plurality of CSI types based on the CSI report setting information.
2. The user terminal according to claim 1, wherein the control unit specifies a transmission / reception point corresponding to a reference signal resource for measurement of the CSI type based on higher layer signaling.
3. The CSI report configuration information or the CSI resource configuration information corresponding to the CSI report configuration information includes at least one of resource information for channel measurement and resource information for interference measurement, and the information included in the plurality includes: The user terminal according to claim 1, wherein the user terminal is associated with different transmission / reception points.
4. The said control part assumes that the interference measurement resource for 1st transmission / reception points is set as the same resource element as the signal measurement resource for 2nd transmission / reception points, The claim from Claim 1 characterized by the above-mentioned. Item 4. The user terminal according to any one of Items 3.
5. The control unit according to claim 1, wherein the control unit derives interference between transmission and reception points for a first transmission and reception point based on channel measurement using a signal measurement resource for a second transmission and reception point. Item 5. The user terminal according to any one of Items 4.
6. Receiving channel state information (CSI) report configuration information;
   Controlling the CSI reports of a plurality of CSI types based on the CSI report setting information.

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