Terminal, wireless communication method, and base station

Abstract

A terminal according to one embodiment of the present disclosure is provided with: a transmission unit that transmits support information indicating the support of a specific reception function for reducing interference during reception; and a control unit that controls the reception using the specific reception function. According to one embodiment of the present disclosure, the function of a receiver of a terminal can be appropriately utilized.

Description

Technical Field

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

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

[0003] Successor systems to LTE (also known as, for example, fifth-generation mobile communication system (5G), 5G+(plus), sixth-generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 and later, etc.) are also being studied.

[0004] Prior art literature

[0005] Non-patent literature

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

[0007] Problems to be solved by the invention

[0008] In future wireless communication systems (eg, NR), the evolution of functions of receivers of terminals (user terminals, User Equipment (UE)) is being studied.

[0009] However, if the network does not recognize the receiver function of the terminal, appropriate resources / modulation schemes for transmission and reception are not determined, and there is a concern that communication throughput may be reduced.

[0010] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of appropriately utilizing the function of a receiver of the terminal.

[0011] Means for solving problems

[0012] A terminal according to one embodiment of the present disclosure includes: a transmitting unit that transmits support information indicating support for a specific receiving function, the specific receiving function being used to reduce interference in reception; and a control unit that controls the reception using the specific receiving function.

[0013] Effects of the Invention

[0014] According to one aspect of the present disclosure, it is possible to appropriately utilize the function of a receiver of a terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A as well as Figure 1B This is a diagram showing an example of the relationship between index / value and the presence or absence of a receiver.

[0016] Figure 2A as well as Figure 2B This is a diagram showing an example of the association between an index and a receiver / receiving function.

[0017] Figure 3 This is a diagram showing an example of the relationship between an index, a receiver, and reception quality.

[0018] Figure 4 It is a diagram showing an example of Table 1 for CQI.

[0019] Figure 5 This is a diagram showing an example of Table 2 for CQI.

[0020] Figure 6 It is a diagram showing an example of Table 3 for CQI.

[0021] Figure 7 It is a diagram showing an example of Table 4 for CQI.

[0022] Figure 8This is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.

[0023] Fig. 9 This is a diagram showing an example of the configuration of a base station according to an embodiment.

[0024] Fig.10 This is a diagram showing an example of a configuration of a user terminal according to an embodiment.

[0025] Fig.11 This is a diagram showing an example of the hardware configuration of a base station and a user terminal according to an embodiment.

[0026] Fig.12 This is a diagram showing an example of a vehicle according to an embodiment. DETAILED DESCRIPTION

[0027] (CSI report or reporting)

[0028] In Rel. 15 NR, a terminal (also referred to as a user terminal, user equipment (UE), etc.) generates (also referred to as determining, calculating, estimating, measuring, etc.) channel state information (CSI) based on a reference signal (RS) (or resources used for the RS), and sends (also referred to as reporting, feedback, etc.) the generated CSI to a network (e.g., a base station). The CSI may also be sent to a base station using, for example, an uplink control channel (e.g., a physical uplink control channel (PUCCH)) or an uplink shared channel (e.g., a physical uplink shared channel (PUSCH)).

[0029] The RS used for generating CSI may also be, for example, at least one of a Channel State Information Reference Signal (CSI-RS), a Synchronization Signal / Physical Broadcast Channel (SS / PBCH) block, a Synchronization Signal (SS), a DeModulation Reference Signal (DMRS), etc.

[0030] CSI-RS may also include at least one of Non Zero Power (NZP) CSI-RS and CSI-Interference Management (CSI-IM). SS / PBCH block is a block containing SS and PBCH (and corresponding DMRS), and may also be referred to as SS block (SSB), etc. In addition, SS may also include at least one of Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS).

[0031] In addition, CSI may also include at least one of a channel quality indicator (Channel Quality Indicator (CQI)), a precoding matrix indicator (Precoding Matrix Indicator (PMI)), a CSI-RS resource indicator (CSI-RSResource Indicator (CRI)), a SS / PBCH block resource indicator (SS / PBCH Block Resource Indicator (SSBRI)), a layer indicator (Layer Indicator (LI)), a rank indicator (Rank Indicator (RI)), L1-RSRP (Layer 1 Reference Signal Received Power), L1-RSRQ (Reference Signal Received Quality), L1-SINR (Signal to Interference plus Noise Ratio), L1-SNR (Signal to Noise Ratio), etc.

[0032] The UE may also receive information related to CSI reporting (report configuration information) and control CSI reporting based on the report configuration information. The report configuration information may be, for example, "CSI-ReportConfig" of the information element (IE) of the Radio Resource Control (RRC). In addition, in the present disclosure, the RRC IE may also be mutually rewritten with RRC parameters, high-layer parameters, etc.

[0033] The report configuration information (eg, “CSI-ReportConfig” of RRC IE) may include, for example, at least one of the following.

[0034] Information related to the type of CSI report (report type information, e.g., "reportConfigType" of RRC IE)

[0035] Information on one or more quantities of CSI to be reported (one or more CSI parameters) (report quantity information, for example, "reportQuantity" of RRC IE)

[0036] Information about the RS resources used to generate the quantity (the CSI parameter) (resource information, for example, "CSI-ResourceConfigId" of RRC IE)

[0037] Information on the frequency domain to be reported by the CSI (frequency domain information, for example, "reportFreqConfiguration" of RRC IE)

[0038] For example, the reporting type information may also indicate periodic CSI (P-CSI-RS) reporting, aperiodic CSI (A-CSI) reporting, or semi-persistent CSI reporting (Semi-Persistent CSI (SP-CSI)) reporting.

[0039] In addition, the reporting amount information may also specify a combination of at least one of the above-mentioned CSI parameters (for example, CRI, RI, PMI, CQI, LI, L1-RSRP, etc.).

[0040] In addition, the resource information may be an ID of a resource for RS. The resource for RS may include, for example, a non-zero-power CSI-RS resource or SSB, and a CSI-IM resource (for example, a zero-power CSI-RS resource).

[0041] In addition, the frequency domain information can also indicate the frequency granularity of the CSI report. The frequency granularity may also include, for example, a wideband and a subband. The wideband is the entire CSI reporting band. The wideband may be, for example, the entirety of a certain carrier (component carrier (CC), cell, serving cell), or the entirety of a bandwidth part (Bandwidth part (BWP)) within a certain carrier. The wideband may also be rewritten as a CSI reporting band, the entire CSI reporting band, etc.

[0042] In addition, a subband is a part of a wideband and can be composed of one or more resource blocks (RBs or PRBs). The size of a subband can also be determined by the size of a BWP (the number of PRBs).

[0043] The frequency domain information may also indicate which wideband or subband PMI is reported (the frequency domain information may also include, for example, the "pmi-FormatIndicator" of the RRC IE used in the determination of either wideband PMI reporting or subband PMI reporting). The UE may also determine the frequency granularity of the CSI report (i.e., either wideband PMI reporting or subband PMI reporting) based on at least one of the above-mentioned reporting amount information and the frequency domain information.

[0044] When wideband PMI reporting is configured (determined), one wideband PMI may be reported for the entire CSI reporting band. On the other hand, when subband PMI reporting is configured, a single wideband indication i1 is reported for the entire CSI reporting band, and a subband indication i2 (e.g., a subband indication for each subband) is reported for each of more than one subbands within the entire CSI reporting band.

[0045] The UE performs channel estimation using the received RS and estimates a channel matrix H. The UE feeds back an index (PMI) determined based on the estimated channel matrix.

[0046] The PMI may also represent a precoder matrix (referred to as a precoder for short) that the UE considers suitable for downlink (downlink (DL)) transmission to the UE. Each value of the PMI may correspond to a precoder matrix. A set of PMI values ​​may also correspond to a set of different precoder matrices referred to as a precoder codebook (also referred to as a codebook for short).

[0047] In the space domain, the CSI report may also include more than one type of CSI. For example, the CSI may also include at least one of a first type (type 1 CSI) used for single beam selection and a second type (type 2 CSI) used for multi-beam selection. A single beam may also be referred to as a single layer, and multi-beams may also be referred to as multiple beams. In addition, type 1 CSI may not assume multi-user multiple input multiple output (MIMO), and type 2 CSI may assume multi-user MIMO.

[0048] The above codebook may also include a codebook for type 1 CSI (also referred to as type 1 codebook, etc.) and a codebook for type 2 CSI (also referred to as type 2 codebook, etc.). In addition, type 1 CSI may also include type 1 single-panel CSI and type 1 multi-panel CSI, and different codebooks (type 1 single-panel codebook, type 1 multi-panel codebook) may be specified for each.

[0049] In the present disclosure, type 1 and type I may be replaced by each other. In the present disclosure, type 2 and type II may be replaced by each other.

[0050] Uplink control information (UCI) may also include at least one of a hybrid automatic repeat request acknowledgement (HARQ-ACK), a scheduling request (SR), and CSI. UCI may be transmitted through a PUCCH or a PUSCH.

[0051] In Rel. 15 NR, UCI can contain a CSI part for wideband PMI feedback. If reported, CSI report #n contains PMI wideband information.

[0052] In Rel. 15 NR, UCI can contain two CSI parts for subband PMI feedback. CSI part 1 contains wideband PMI information, and CSI part 2 contains one wideband PMI information and several subband PMI information. CSI part 1 and CSI part 2 can also be coded separately.

[0053] In Rel. 15 NR, the UE is configured with N (N≥1) CSI report configurations and M (M≥1) CSI resource configurations through the higher layer. For example, the CSI report configuration (CSI-ReportConfig) includes resource configurations for channel measurement (resourcesForChannelMeasurement), CSI-IM resource configurations for interference (csi-IM-ResourceForInterference), NZP-CSI-RS configurations for interference (nzp-CSI-RS-ResourceForInterference), report quantity (reportQuantity), etc. The resource configurations for channel measurement, CSI-IM resource configurations for interference, and NZP-CSI-RS configurations for interference are each associated with a CSI resource configuration (CSI-ResourceConfig, CSI-ResourceConfigId). The CSI resource configuration includes a list of CSI-RS resource sets (csi-RS-ResourceSetList, for example, an NZP-CSI-RS resource set or a CSI-IM resource set).

[0054] (Receiver)

[0055] In order to further improve the speed / capacity / reliability / delay performance of communications, future networks (NW, for example, 6G) are envisioned to utilize higher frequencies or wider bandwidths than 5G. In conjunction with the evolution of such NW, it is also envisioned to improve terminal (UE) performance. For example, as one approach, the evolution of the receiver that the UE has is considered.

[0056] In Rel. 17, various situations are envisaged and the following receiver is studied.

[0057] Inter-cell Minimum Mean Square Error (MMSE)-Interference Rejection Combining (IRC) receiver: A receiver that suppresses / removes interference from other cells.

[0058] Intra-cell inter-user MMSE-IRC receiver: A receiver that suppresses / removes interference from other users within the cell.

[0059] The MMSE-IRC receiver estimates the covariance matrix of the interference (the weighting matrix of the antennas). This weighting matrix creates a minimum point (null) in the antenna gain in the direction of arrival of the interference.

[0060] Such advanced receivers / capabilities are sometimes not notified from the UE to the NW. For example, the single user (SU) - multi-input multi-output (MIMO) interference mitigation advanced receiver introduced in Rel. 15 is an optional feature without capability signalling. The SU-MIMO interference mitigation advanced receiver is a reduced complexity maximum likelihood (R-ML) receiver with extended inter-stream interference suppression for SU-MIMO transmissions. For this receiver, there is capability with 2 receive (RX) antennas and rank 2, or with 4 RX antennas and ranks 2, 3, and 4.

[0061] As described above, without reporting the capability information about the advanced receiver, the NW cannot properly control the advanced receiver. The existing NW determines resource allocation or MCS based on the transmission path status (CSI (at least one of PMI, RI, CQI)) reported by the UE. However, the NW does not determine resource allocation or MCS based on the receiver of the terminal.

[0062] Since there is a difference between the propagation path state reported by the UE in advance and the propagation path state of the signal actually received by the UE, there is a possibility that the NW determines inefficient resource allocation or inappropriate MCS. For example, assume the case where the following steps 1 to 3 are performed.

[0063] [Step 1] A UE that cannot suppress interference from other cells reports CSI in an environment where interference from other cells is low to the NW.

[0064] [Step 2] The NW allocates resources based on the report.

[0065] [Step 3] When the UE moves to an environment with a lot of interference and tries to receive a signal, there is a possibility that the signal cannot be properly received and the allocated resources may be wasted.

[0066] Therefore, the inventors of the present invention have conceived a control method related to a receiver of a UE.

[0067] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The wireless communication methods according to the embodiments may be applied individually or in combination.

[0068] In the present disclosure, "A / B" and "at least one of A and B" may be replaced with each other. In addition, in the present disclosure, "A / B / C" may also mean "at least one of A, B, and C".

[0069] In the present disclosure, activate, deactivate, indicate (or specify), select, configure, update, determine, etc. may also be mutually rewritten. In the present disclosure, support, control, controllable, operate, and operate may also be mutually rewritten.

[0070] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, high-layer parameters, fields, Information Element (IE), settings, etc. may also be overwritten with each other. In the present disclosure, Medium Access Control (MAC) Control Element (CE), update commands, activation / deactivation commands, etc. may also be overwritten with each other.

[0071] In the present disclosure, the higher layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

[0072] In the present disclosure, MAC signaling may also use, for example, MAC Control Element (MACCE), MAC Protocol Data Unit (PDU), etc. Broadcast information may also be, for example, Master Information Block (MIB), System Information Block (SIB), minimum system information (Remaining Minimum System Information (RMSI)), Other System Information (Other System Information (OSI)), etc.

[0073] In the present disclosure, the physical layer signaling may be, for example, downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI)), etc.

[0074] In the present disclosure, an index, an identifier (ID), an indicator, a resource ID, etc. may also be overwritten with each other. In the present disclosure, a sequence, a list, a set, a group, a group, a cluster, a subset, etc. may also be overwritten with each other.

[0075] (Wireless Communication Method)

[0076] In each embodiment, a specific receiver, an advanced receiver, a receiver with SU-MIMO interference mitigation advanced receiver interference suppression, an MMSE-IRC receiver, an inter-cell MMSE-IRC receiver, a receiver with a specific receiving function, a receiver AAA, a receiver XX, and a specific receiving function may be replaced with each other. In each embodiment, a specific receiving function, an optional function, an optional function without capability signaling, a function that is not a mandatory function, and a receiving function YY may be replaced with each other.

[0077] In each embodiment, a normal receiver, a receiver that is not a specific receiver, a receiver with a mandatory function, a receiver with a normal receiving function, and a normal receiving function may be overwritten with each other. In each embodiment, a normal receiving function and a mandatory function may be overwritten with each other.

[0078] In each embodiment, a specific UE, a UE with a specific receiver, and a UE supporting a specific receiving function may be replaced by each other. In each embodiment, a normal UE, a UE with a normal receiver, a UE supporting a normal receiving function, a UE without a specific receiver, and a UE not supporting a specific receiving function may be replaced by each other.

[0079] In various embodiments, parameters related to modulation / coding, modulation scheme, modulation order, coding rate, efficiency, and transport block size may be interchangeable.

[0080] <First Embodiment>

[0081] This embodiment relates to notification / reporting of support of a specific receiver / specific receiving function.

[0082] The UE may notify / report information (support information) indicating that the UE has a specific receiver / specific reception function to the NW.

[0083] In the support information, whether the UE has a specific receiver corresponds to the value 0 and 1.

[0084] exist Figure 1A In the example, the support information includes a value (index) of 0 or 1. Alternatively, a value of 0 in the support information indicates that the UE has a specific receiver (yes), and a value of 1 in the support information indicates that the UE does not have a specific receiver (no). The meanings of the values ​​0 and 1 may also be opposite to those in this example.

[0085] The NW may also notify the UE in advance of information for setting / designating the type of specific receiver to be reported (receiver setting information). The UE may also notify the NW of information for indicating whether it has the specific receiver indicated by the receiver setting information (support information). The content of the receiver setting information may differ for each base station (may be cell-specific) or for each UE (may be UE-specific (UE-specific)).

[0086] exist Figure 1B In the example of , the receiver setting information indicates that the specific receiver is the receiver AAA. The support information includes a value (index) of 0 or 1. Alternatively, the value 0 of the support information indicates that the UE has the receiver AAA (yes), and the value 1 of the support information indicates that the UE does not have the receiver AAA (no). The meanings of the values ​​0 and 1 may also be opposite to those in this example.

[0087] According to this embodiment, the NW can identify whether the UE has a specific receiver.

[0088] <Second Embodiment>

[0089] This embodiment relates to notification / reporting of a specific receiver / specific receiving function type.

[0090] The UE may also notify / report information (receiver support information) related to the specific receiver / specific receiving function supported (possessing) to the NW. The receiver support information may also indicate the name / type / function of the receiver. For example, the specific receiving function may be: more resistant to interference than the normal receiving function, and reduce / suppress interference, etc.

[0091] Each type of receiver may be associated with (assigned with) an index (receiver number). The receiver support information may also notify the value of the index corresponding to the receiver of the UE. Figure 2AIn the example, the values ​​0, 1, 2, 3, ... of the index of the receiver support information may also be associated with different types of receivers. The values ​​0, 1, 2, 3 of the index of the receiver support information may also correspond to a normal receiver, a SU-MIMO interference mitigation advanced receiver, an MMSE-IRC receiver for inter-cell interference, and an MMSE-IRC receiver for intra-cell inter-user interference, respectively.

[0092] The receiver support information may also be a bitmap. Each bit (bit position) in the bitmap may also correspond to the type of receiver. The value 0 and 1 of each bit may also correspond to whether the UE has a receiver of the corresponding type. Alternatively, the value 1 of each bit indicates that the UE has a corresponding receiver (yes), and the value 0 of each bit indicates that the UE does not have a corresponding receiver (no). The meaning of the values ​​0 and 1 may also be opposite to that in this example. The number of types of receivers that the UE has (the number of values ​​1 in the bitmap) may be 1 or more.

[0093] The value of an index (function number) may also be associated (assigned) to each specific receiving function held by a specific receiver. The receiver support information may also notify the value of the index corresponding to the function of the UE's receiver. Figure 2B In the example, the values ​​0, 1, ... of the index of the receiver support information may be associated with different types of receivers. The values ​​0, 1 of the index of the receiver support information may be assigned to correspond to a normal receiver, interference cancellation between cells, and interference cancellation between users in a cell.

[0094] The receiver support information may also be a bitmap. Each bit in the bitmap may also correspond to a function of the receiver. The value 0 and 1 of each bit may also correspond to whether the UE has the corresponding function. Alternatively, the value 1 of each bit indicates that the UE has the corresponding function (yes), and the value 0 of each bit indicates that the UE does not have the corresponding function (no). The meaning of the values ​​0 and 1 may also be opposite to that in this example. The number of receiver functions that the UE has (the number of values ​​1 in the bitmap) may be one or more.

[0095] The UE may also notify the NW of information (reception quality information) of reception quality (RSRP / RSRQ / SINR, etc.) corresponding to the type of supported receiver. The UE may also notify the NW of receiver support information (index) and reception quality information. The reception quality information may also be associated with a specific value of the index of the receiver support information. When reporting receiver support information of a specific value, the UE may also notify the corresponding reception quality information. Figure 3In the example, RSRQ and RSRP as reception quality information are associated with the values ​​0 and 2 of the receiver support information index. When reporting the value 0 or 2 of the receiver support information index, the UE may also notify the RSRQ value xx and the RSRP value yy as reception quality information.

[0096] According to this embodiment, the NW can identify the type / function of the receiver of the UE.

[0097] <Third Embodiment>

[0098] This embodiment relates to CSI reporting.

[0099] The UE may also determine / change the format / parameters (CSI parameters) of the CSI (path status information) report according to the type of receiver supported by the UE. The reported CSI parameters may also include at least one of PMI, RI, CQI, and CRI.

[0100] The NW may also notify the UE in advance of information for setting / specifying the format / parameters to be reported (report setting information, settings). The UE may also determine the CSI based on the format and measurement results indicated by the report setting information, and report / notify the CSI to the NW. The content of the report setting information may vary depending on the base station (or may be cell-specific). It may also vary depending on the UE (or may be UE-specific (UE-specific)).

[0101] The CQI report based on QPSK, 16QAM, 64QAM (up to 64QAM) can also be reported through Table 1 ( Figure 4 ) or Form 3 ( Figure 6 ) to provide CQI index and its explanation. CQI reports based on QPSK, 16QAM, 64QAM, 256QAM (up to 256QAM) can also be reported through Table 2 ( Figure 5 ) to provide CQI index and its explanation. CQI reports based on QPSK, 16QAM, 64QAM, 256QAM, 1024QAM (up to 1024QAM) can also be reported through Table 4 ( Figure 7 ) to provide the CQI index and its explanation. Tables 1 to 4 each show the association of the CQI index, modulation scheme, coding rate, and efficiency.

[0102] The UE may also derive the highest CQI index satisfying the following conditions for each CQI value reported in uplink slot n.

[0103] [Conditions] A single PDSCH transport block occupying a group of downlink physical resource blocks called CSI reference resources with a combination of a modulation scheme, target coding rate, and transport block size corresponding to a CQI index is received with a transport block error probability (block error rate (BLER)) not exceeding the following threshold a or b.

[0104] [[Threshold a]] When the high-level parameter (cqi-Table in CSI-ReportConfig) is set to table 1, 2, or 4, it is 0.1.

[0105] [[Threshold b]] is 0.00001 when the higher-layer parameter (cqi-Table in CSI-ReportConfig) is set to Table 3 (high reliability).

[0106] In the case where the following cases a, b, and c are satisfied, a combination of a modulation scheme and a transport block size may also correspond to a CQI index.

[0107] [Case a] Depending on the decision of the transport block size described in the specification, it is possible to notify the case of this combination for transmission on the PDSCH within the CSI reference resources.

[0108] [Case b] A case where a modulation scheme is represented by the CQI index.

[0109] [Case c] A case where an effective channel coding rate closest to the coding rate indicated by the QCI index is obtained when a combination of transport block size and modulation scheme is used for the reference resource. If an effective channel coding rate almost equal to the coding rate indicated by the CQI index is obtained by more than one combination of transport block size and modulation scheme, only the combination with the smallest transport block is associated.

[0110] For CQI reported by normal UE / specific UE, the CQI index and its interpretation (table used in CQI calculation) may also comply with an existing table (existing format / parameters). The existing table may also be at least one of Tables 1 to 4.

[0111] In addition to Tables 1 to 4, specific tables that take specific receivers into consideration may also be specified in the specification. The specific tables may also include at least one of the following tables XX, YY.

[0112] [Table XX] Table utilized by UE supporting specific receiver XX.

[0113] [Table YY] A table used by UEs supporting function YY possessed by a specific receiver.

[0114] For the CQI reported by a specific UE, the CQI index and its interpretation (the table utilized in the CQI calculation) may also follow the new table (new format / parameters).

[0115] For CQI reported by a specific UE, the CQI index and its interpretation (the table used for CQI calculation) may also follow the new table (new format / parameters).

[0116] A specific UE may also be set to a specific table among existing tables and new tables. A specific table may also include a modulation order / efficiency higher than a specific value. A specific table may also include at least one of Table XX, Table YY, and Table 4. Only a UE that has sent a notification indicating a specific receiver / specific receiving function is set to a specific table. It may also be stipulated that a UE is generally not assumed to be set to a specific table. It may also be stipulated that a UE that does not send a notification indicating a specific receiver / specific receiving function is not assumed to be set to a specific table.

[0117] A specific UE may also be configured with a report of a specific table / parameter. A specific table may also include parameters corresponding to a modulation order / efficiency higher than a specific value. A specific format / parameter may also be configured only for a UE that has sent a notification indicating a specific receiver / specific receiving function. It may also be stipulated that a report of a specific format / parameter is not normally assumed to be configured for a UE. It may also be stipulated that a UE that has not sent a notification indicating a specific receiver / specific receiving function is not configured with a report of a specific format / parameter.

[0118] According to this embodiment, the UE can report appropriate CSI.

[0119] <Fourth Embodiment>

[0120] This embodiment relates to resource allocation.

[0121] In at least one of the first to third embodiments, the NW may implement / control resource allocation based on the information (support information / receiver support information / CSI) notified from the UE. The resource may be a downlink (e.g., PDSCH) resource or an uplink (e.g., PUSCH) resource. The resource allocation may also be at least one of time domain resource allocation and frequency domain resource allocation.

[0122] The NW may also perform resource allocation based on the information notified by the first embodiment or the second embodiment and the CSI report having an existing format. For example, the UE may also allocate resources to a UE having a specific receiver based on a CSI report or based on a condition better than the CSI report (assuming a reception quality higher than the reported reception quality). For example, the UE may also allocate resources to a UE not having a specific receiver based on a CSI report or based on a condition worse than the CSI report (assuming a reception quality worse than the reported reception quality).

[0123] The NW may also perform resource allocation based on the information notified in the first embodiment or the second embodiment and the CSI report having the new format / parameters in the third embodiment. For example, the UE may also allocate resources to UEs equipped with specific receivers based on the CSI report.

[0124] A specific UE may also receive resource allocation information (indication / setting) for modulation / coding with a parameter higher than a specific value. The parameter is higher than a specific value, which includes at least one of the following: the modulation order is higher than a specific modulation order, and the coding rate is higher than a specific coding rate. It may also be that only the UE that has sent a notification indicating a specific receiver / specific receiving function receives resource allocation information with a parameter higher than a specific value. It may also be stipulated that a UE generally does not assume the reception of resource allocation information with a parameter higher than a specific value. It may also be stipulated that a UE that has not sent a notification indicating a specific receiver / specific receiving function does not assume the reception of resource allocation information with a parameter higher than a specific value.

[0125] The NW may also identify / grasp the number of UEs with normal receivers (normal UEs) and the number of UEs with specific receivers (specific UEs) in the cell based on the information notified through the first embodiment or the second embodiment. The NW may also make resource allocation in the current cell (service cell) and the surrounding cells more efficient in order to perform at least one of the following operations 1 and 2 based on the number of normal UEs and the number of specific UEs. In order to perform at least one of the following operations 1 and 2, the NW instructs the UE to switch even when the reception quality does not meet the switching threshold. There is a high possibility that the specific UE can communicate using a modulation order higher than the modulation order used for the normal UE. In this case, when the specific UE sends and receives the same amount of data as the normal UE, fewer resources are required than for the normal UE.

[0126] [Operation 1] The NW makes the number of normal UEs located in the own cell and the neighboring cells and the number of specific UEs located in the own cell and the neighboring cells aligned (close).

[0127] [Operation 2] The NW considers the status (propagation environment or frequency, etc.) of the own cell and the surrounding cells, and allocates specific UEs to worse status (worse propagation environment, frequency with more interference), and allocates normal UEs to better status (better propagation environment, frequency with less interference). The NW can also identify / understand the status based on the report of the reception quality in the second embodiment and other reports (measurement reports).

[0128] According to this embodiment, the NW can appropriately allocate resources and improve resource utilization efficiency.

[0129] <Supplement>

[0130] 《Variation Example》

[0131] The NW may also set / instruct activation / deactivation (enable / disable) of a function in at least one of the first to third embodiments.

[0132] In at least one of the first to third embodiments, the report from the UE to the NW may be periodic. The period of the report may be different between the specific UE and the general UE. For example, since the specific UE is resistant to changes in the communication environment, the period of the report of the specific UE may be longer than the period of the report of the general UE.

[0133] Time domain resource allocation can also be notified using existing time domain resource allocation (TDRA). A new TDRA for a specific UE can also be introduced (which can also be specified in the specification). Time domain resource allocation for a specific UE can also be notified using a new TDRA.

[0134] The notification from the NW to the UE in at least one of the first to fourth embodiments may utilize DCI / MAC CE / RRC signaling.

[0135] The report from the UE to the NW in at least one of the first embodiment to the second embodiment may be reported together with the existing report from the UE to the NW (within the PUCCH / PUSCH including the existing report).

[0136] 《UE capability information / high-level parameters》

[0137] At least one of the above-mentioned embodiments may also be applied only to a UE that reports a specific UE capability (UE capability) or supports the specific UE capability.

[0138] The specific UE capability may also represent at least one of the following:

[0139] Supporting processing / operation / control / information for at least one of the above embodiments.

[0140] In addition, the above-mentioned specific UE capabilities can be capabilities that are applied across the entire frequency (commonly regardless of the frequency), or capabilities per frequency (for example, cell, subband, BWP), or capabilities per frequency range (for example, Frequency Range 1 (FR1)), FR2, FR3, FR4, FR5, FR2-1, FR2-2), or capabilities per subcarrier spacing (SubCarrier Spacing (SCS)).

[0141] Furthermore, the specific UE capability may be a capability applied across full-duplex modes (commonly regardless of the duplex mode) or a capability applied by duplex mode (eg, time division duplex (TDD) or frequency division duplex (FDD)).

[0142] In addition, at least one of the above-mentioned embodiments may also be applied when the UE is configured with specific information associated with the above-mentioned embodiments through high-layer signaling. For example, the specific information may also be information indicating activation of at least one function in the above-mentioned embodiments, any RRC parameter for a specific version (e.g., Rel. 18), etc.

[0143] The UE may also apply operations such as Rel. 15 / 16 without supporting at least one of the above-mentioned specific UE capabilities or without being set with the above-mentioned specific information.

[0144] According to the above UE capabilities / high-layer parameters, the UE can maintain compatibility with existing specifications while implementing the above functions.

[0145] (Note)

[0146] Regarding one embodiment of the present disclosure, the following invention is added:

[0147] [Note 1]

[0148] A terminal having:

[0149] a sending unit, sending support information, wherein the support information specifies support for a receiving function, wherein the receiving function indicates interference reduction for receiving; and

[0150] A control unit controls the reception using the specific reception function.

[0151] [Note 2]

[0152] The terminal according to Supplement 1, wherein:

[0153] The support information indicates support for the specific reception function using an index or a bit position corresponding to the specific reception function.

[0154] [Note 3]

[0155] The terminal according to Supplement 1, wherein:

[0156] The control unit determines channel state information CSI based on a setting corresponding to the specific reception function and a measurement result.

[0157] [Note 4]

[0158] A terminal according to any one of Notes 1 to 3, wherein:

[0159] The control unit controls reception of resource allocation information accompanied by a parameter higher than a specific value for modulation or coding.

[0160] (Wireless Communication System)

[0161] Hereinafter, a configuration of a wireless communication system according to an embodiment of the present disclosure will be described. In the wireless communication system, communication is performed using any one of the wireless communication methods according to the above-mentioned embodiments of the present disclosure or a combination thereof.

[0162] Figure 8 1 is a diagram showing an example of a schematic structure of a wireless communication system according to an embodiment. The wireless communication system 1 may be a system that implements communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), the fifth generation mobile communication system New Radio (5G NR), or the like.

[0163] In addition, the wireless communication system 1 may also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple radio access technologies (Radio Access Technology (RAT)). MR-DC may also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (E-UTRA-NR Dual Connectivity (EN-DC))), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NR-E-UTRA Dual Connectivity (NE-DC))), etc.

[0164] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the master node (Master Node (MN)), and the base station (gNB) of NR is the secondary node (Secondary Node (SN)). In NE-DC, the base station (gNB) of NR is the MN, and the base station (eNB) of LTE (E-UTRA) is the SN.

[0165] The wireless communication system 1 may also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) where both MN and SN are NR base stations (gNB)).

[0166] The wireless communication system 1 may also include a base station 11 that forms a macro cell C1 with a relatively wide coverage, and a base station 12 (12a-12c) that is configured in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 may also be located in at least one cell. The configuration and number of each cell and user terminal 20 are not limited to the method shown in the figure. Hereinafter, when the base stations 11 and 12 are not distinguished, they are collectively referred to as base stations 10.

[0167] The user terminal 20 may be connected to at least one of the plurality of base stations 10. The user terminal 20 may use at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).

[0168] Each CC may also be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may also be included in FR1, and the small cell C2 may also be included in FR2. For example, FR1 may be a frequency band below 6 GHz (below 6 GHz (sub-6 GHz)), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). In addition, the frequency bands and definitions of FR1 and FR2 are not limited to these. For example, FR1 may also be equivalent to a frequency band higher than FR2.

[0169] Furthermore, the user terminal 20 may perform communication using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.

[0170] Multiple base stations 10 may also be connected by wire (e.g., optical fiber based on Common Public Radio Interface (CPRI), X2 interface, etc.) or wireless (e.g., NR communication). For example, when NR communication between base stations 11 and 12 is used as a backhaul, the base station 11 equivalent to the upper station may also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12 equivalent to a relay station (relay) may also be referred to as an IAB node.

[0171] The base station 10 may be connected to the core network 30 via other base stations 10 or directly. The core network 30 may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0172] The user terminal 20 may also be a terminal that supports at least one of communication modes such as LTE, LTE-A, and 5G.

[0173] In the wireless communication system 1, a wireless access method based on orthogonal frequency division multiplexing (OFDM) may be used. For example, in at least one of the downlink (DL) and the uplink (UL), cyclic prefix OFDM (CP-OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), etc. may be used.

[0174] The radio access scheme may also be referred to as a waveform. In addition, in the wireless communication system 1, other radio access schemes (for example, other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the radio access schemes for UL and DL.

[0175] As downlink channels, the wireless communication system 1 may use a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20 , a broadcast channel (Physical Broadcast Channel (PBCH))), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc.

[0176] In addition, as uplink channels, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20, an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc. can also be used in the wireless communication system 1.

[0177] User data, high-layer control information, System Information Block (SIB), etc. are transmitted through PDSCH. User data, high-layer control information, etc. can also be transmitted through PUSCH. In addition, Master Information Block (MIB) can also be transmitted through PBCH.

[0178] The lower layer control information may also be transmitted via the PDCCH. The lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of the PDSCH and the PUSCH.

[0179] In addition, the DCI for scheduling the PDSCH may also be referred to as DL allocation, DL DCI, etc., and the DCI for scheduling the PUSCH may also be referred to as UL grant, UL DCI, etc. In addition, the PDSCH may also be rewritten as DL data, and the PUSCH may also be rewritten as UL data.

[0180] In the detection of PDCCH, the control resource set (CORESET) and the search space can also be used. CORESET corresponds to the resources for searching DCI. The search space corresponds to the search area and search method of PDCCH candidates. A CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a search space based on the search space setting.

[0181] A search space may also correspond to a PDCCH candidate corresponding to one or more aggregation levels. One or more search spaces may also be referred to as a search space set. In addition, the "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting" and the like in the present disclosure may also be rewritten mutually.

[0182] Uplink control information (uplink control information (UCI)) including at least one of channel state information (CSI), delivery confirmation information (e.g., also known as hybrid automatic repeat request confirmation (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR) can also be transmitted through PUCCH. The random access preamble used to establish a connection with a cell can also be transmitted through PRACH.

[0183] In the present disclosure, downlink, uplink, etc. may be expressed without “link.” In addition, various channels may be expressed without “Physical” at the beginning.

[0184] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. can also be transmitted. As DL-RS, in the wireless communication system 1, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc. can also be transmitted.

[0185] The synchronization signal may be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may also be referred to as SS / PBCH block, SS block (SS Block (SSB)), etc. In addition, SS, SSB, etc. may also be referred to as reference signals.

[0186] In addition, in the wireless communication system 1, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a measurement reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. may also be transmitted. In addition, DMRS may also be called a user terminal specific reference signal (UE-specific Reference Signal).

[0187] (Base Station)

[0188] Fig. 9 1 is a diagram showing an example of a structure of a base station involved in one embodiment. The base station 10 includes a control unit 110, a transmitting and receiving unit 120, a transmitting and receiving antenna 130, and a transmission path interface (transmission line interface) 140. In addition, the control unit 110, the transmitting and receiving unit 120, the transmitting and receiving antenna 130, and the transmission path interface 140 may each be provided with more than one.

[0189] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also conceivable that the base station 10 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may also be omitted.

[0190] The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, a control circuit, and the like that are described based on common knowledge in the technical field to which the present disclosure relates.

[0191] The control unit 110 may also control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception, measurement, etc. using the transmission and reception unit 120, the transmission and reception antenna 130, and the transmission path interface 140. The control unit 110 may also generate data, control information, sequences, etc. to be sent as signals, and forward them to the transmission and reception unit 120. The control unit 110 may also perform call processing (setting, release, etc.) of communication channels, state management of the base station 10, management of wireless resources, etc.

[0192] The transmitting and receiving unit 120 may also include a baseband unit 121, a radio frequency (RF) unit 122, and a measuring unit 123. The baseband unit 121 may also include a transmitting processing unit 1211 and a receiving processing unit 1212. The transmitting and receiving unit 120 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the common knowledge in the technical field involved in the present disclosure.

[0193] The transmitting and receiving unit 120 may be configured as an integrated transmitting and receiving unit, or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 1211 and an RF unit 122. The receiving unit may also be configured as a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.

[0194] The transmitting / receiving antenna 130 can be constituted by an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0195] The transmitting and receiving unit 120 may also transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 120 may also receive the above-mentioned uplink channel, uplink reference signal, etc.

[0196] The transmitting and receiving unit 120 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0197] The sending and receiving unit 120 (the sending processing unit 1211 may also perform processing on the Packet Data Convergence Protocol (PDCP)) layer, processing on the Radio Link Control (RLC) layer (for example, RLC retransmission control), processing on the Medium Access Control (MAC) layer (for example, HARQ retransmission control), etc., for data and control information obtained from the control unit 110, for example, to generate a bit string to be sent.

[0198] The transmitting and receiving unit 120 (transmitting processing unit 1211) may also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing (filtering processing), discrete Fourier transform (DFT) processing (as needed), inverse fast Fourier transform (IFFT) processing), precoding, digital-to-analog conversion and other transmission processing on the bit string to be transmitted, and output a baseband signal.

[0199] The transmitting and receiving unit 120 (RF unit 122 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 130 .

[0200] On the other hand, the transmission and reception unit 120 (RF unit 122 ) may also perform amplification, filter processing, demodulation into a baseband signal, etc. on the signal in the radio frequency band received by the transmission and reception antenna 130 .

[0201] The transmitting and receiving unit 120 (receiving processing unit 1212) may also apply receiving processing such as analog-to-digital conversion, fast Fourier transform (FFT) processing, inverse discrete Fourier transform (IDFT) processing (as needed), filter processing (filtering processing), demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to obtain user data, etc.

[0202] The transmitting and receiving unit 120 (the measuring unit 123) may also implement measurements related to the received signal. For example, the measuring unit 123 may also perform radio resource management (RRM) measurements, channel state information (CSI) measurements, etc. based on the received signal. The measuring unit 123 may also measure received power (e.g., reference signal received power (RSRP)), received quality (e.g., reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), signal to noise ratio (SNR)), signal strength (e.g., received signal strength indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0203] The transmission path interface 140 can also send and receive signals (return signaling) between devices included in the core network 30, other base stations 10, etc., and can also obtain and transmit user data (user plane data) and control plane data for the user terminal 20.

[0204] In addition, the transmission unit and the reception unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmission and reception unit 120 , the transmission and reception antenna 130 , and the transmission path interface 140 .

[0205] In addition, the transmitting and receiving unit 120 may also receive support information, where the support information is used to indicate that the terminal supports a specific receiving function for interference reduction.

[0206] The control unit 110 may also control the transmission based on the specific receiving function.

[0207] (User terminal)

[0208] Fig.10 2 is a diagram showing an example of a configuration of a user terminal according to an embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. In addition, the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may be provided in one or more portions.

[0209] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also conceivable that the user terminal 20 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may be omitted.

[0210] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, a control circuit, and the like that are described based on common knowledge in the technical field to which the present disclosure relates.

[0211] The control unit 210 may also control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc. using the transmission and reception unit 220 and the transmission and reception antenna 230. The control unit 210 may also generate data, control information, sequences, etc. to be transmitted as signals, and forward them to the transmission and reception unit 220.

[0212] The transmitting and receiving unit 220 may also include a baseband unit 221, an RF unit 222, and a measuring unit 223. The baseband unit 221 may also include a transmitting processing unit 2211 and a receiving processing unit 2212. The transmitting and receiving unit 220 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the common knowledge in the technical field involved in the present disclosure.

[0213] The transmitting and receiving unit 220 may be configured as an integrated transmitting and receiving unit, or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 2211 and an RF unit 222. The receiving unit may also be configured as a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.

[0214] The transmitting / receiving antenna 230 can be constituted by an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0215] The transmitting and receiving unit 220 may also receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 220 may also transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0216] The transmitting and receiving unit 220 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0217] The sending and receiving unit 220 (sending processing unit 2211) may also perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 210 to generate a bit string to be sent.

[0218] The transmitting and receiving unit 220 (transmitting processing unit 2211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing (filtering processing), DFT processing (as needed), IFFT processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0219] In addition, whether to apply DFT processing may also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when transform precoding is valid (enabled), the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using a DFT-s-OFDM waveform. Otherwise, the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing without performing DFT processing.

[0220] The transmitting and receiving unit 220 (RF unit 222 ) may perform modulation, filter processing (filtering processing), amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 230 .

[0221] On the other hand, the transmission and reception unit 220 (RF unit 222 ) may perform amplification, filter processing (filter processing), demodulation into a baseband signal, etc. on the signal in the radio frequency band received by the transmission and reception antenna 230 .

[0222] The sending and receiving unit 220 (receiving processing unit 2212) can also apply receiving processing such as analog-to-digital conversion, FFT processing, IDFT processing (as needed), filter processing (filtering processing), demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing and PDCP layer processing to the obtained baseband signal to obtain user data, etc.

[0223] The transmitting and receiving unit 220 (measuring unit 223) may also perform measurements related to the received signal. For example, the measuring unit 223 may also perform RRM measurement, CSI measurement, etc. based on the received signal. The measuring unit 223 may also measure the received power (e.g., RSRP), the received quality (e.g., RSRQ, SINR, SNR), the signal strength (e.g., RSSI), the propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 210.

[0224] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be composed of at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230 .

[0225] In addition, the transmitting and receiving unit 220 may also transmit support information, where the support information indicates support for a specific receiving function, where the specific receiving function is used to reduce interference during reception.

[0226] The control unit 210 may also control the reception using the specific reception function.

[0227] The support information may also indicate support for the specific receiving function by using an index or a bit position corresponding to the specific receiving function.

[0228] The control unit 210 may also determine channel state information (CSI) based on the setting corresponding to the specific reception function and the measurement result.

[0229] The control unit 210 may also control reception of resource allocation information accompanied by a parameter higher than a specific value for modulation or coding.

[0230] (Hardware structure)

[0231] In addition, the block diagram used in the description of the above-mentioned embodiment shows a block of a functional unit. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented by a device that is physically or logically combined, or two or more physically or logically separated devices can be directly or indirectly connected (for example, by wire, wireless, etc.) and implemented by these multiple devices. The functional block can also be implemented by combining the above-mentioned one device or the above-mentioned multiple devices with software.

[0232] Here, the functions include judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, solving, selecting, selecting, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but are not limited to these. For example, a functional block (structural unit) that implements a sending function may also be referred to as a transmitting unit, a transmitter, etc. Any one of them is as described above, and the implementation method thereof is not particularly limited.

[0233] For example, a base station, a user terminal, etc. in one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Fig.11 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0234] In addition, in the present disclosure, the terms such as device, circuit, equipment, section, and unit can be interchanged. The hardware configuration of the base station 10 and the user terminal 20 may include one or more of the devices shown in the figure, or may exclude some of the devices.

[0235] For example, only one processor 1001 is shown, but there may be multiple processors. In addition, the processing may be performed by one processor, or may be performed by two or more processors simultaneously, sequentially, or in other ways. In addition, the processor 1001 may also be implemented by one or more chips.

[0236] The functions of the base station 10 and the user terminal 20 are realized, for example, by reading specific software (program) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls communication via the communication device 1004, or controls at least one of the reading and writing of data in the memory 1002 and the storage 1003.

[0237] The processor 1001 controls the entire computer by, for example, operating an operating system. The processor 1001 may also be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, etc. For example, at least a part of the control unit 110 (210), the transmission and reception unit 120 (220), etc. described above may also be implemented by the processor 1001.

[0238] In addition, the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and performs various processes based on them. As a program, a program that causes a computer to perform at least a part of the operations described in the above-mentioned embodiments can be used. For example, the control unit 110 (210) can also be implemented by a control program stored in the memory 1002 and operated in the processor 1001, and the other functional blocks can also be implemented in the same way.

[0239] The memory 1002 may also be a computer-readable recording medium, for example, composed of at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), or other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing the wireless communication method involved in one embodiment of the present disclosure.

[0240] The storage 1003 may also be a computer-readable recording medium, such as a flexible disk, a floppy disk, an optical disk (such as a compact disk (Compact Disc ROM (CD-ROM)), a digital versatile disk, a Blu-ray (Blu-ray) (registered trademark) disk), a removable disk, a hard disk drive, a smart card, a flash memory device (such as a card, a stick, a key drive), a magnetic stripe, a database, a server, or at least one of other appropriate storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0241] The communication device 1004 is hardware (transmitting and receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, etc. In order to realize at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)), the communication device 1004 may also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the above-mentioned transmitting and receiving unit 120 (220), the transmitting and receiving antenna 130 (230), etc. may also be realized by the communication device 1004. The transmitting and receiving unit 120 (220) may also be realized by physically or logically separating the transmitting unit 120a (220a) and the receiving unit 120b (220b).

[0242] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.). The output device 1006 is an output device that performs output to the outside (e.g., a display, a speaker, a light emitting diode (LED) lamp, etc.). In addition, the input device 1005 and the output device 1006 may also be an integrated structure (e.g., a touch panel).

[0243] In addition, the processor 1001, the memory 1002 and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured as a single bus or may be configured as different buses between the devices.

[0244] In addition, the base station 10 and the user terminal 20 may also be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA), and the hardware may be used to implement a part or all of each functional block. For example, the processor 1001 may also be implemented using at least one of these hardware.

[0245] (Variation)

[0246] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure may also be replaced with terms having the same or similar meanings. For example, channels, code elements, and signals (signals or signaling) may be rewritten one another. In addition, a signal may also be a message. A reference signal may also be referred to as RS, and may also be referred to as a pilot, a pilot signal, etc. depending on the applied standard. In addition, a component carrier (CC) may also be referred to as a cell, a frequency carrier, a carrier frequency, etc.

[0247] A radio frame may also be composed of one or more periods (frames) in the time domain. Each period (frame) of the one or more periods (frames) constituting a radio frame may also be referred to as a subframe. Further, a subframe may also be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (e.g., 1 ms) that is not dependent on a parameter set (numerology).

[0248] Here, the parameter set may also be a communication parameter applied in at least one of the transmission and reception of a certain signal or channel. For example, the parameter set may also represent at least one of the subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), the number of symbols per TTI, wireless frame structure, specific filter processing performed by the transmitter and receiver in the frequency domain, specific windowing processing performed by the transmitter and receiver in the time domain, etc.

[0249] A time slot may also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. In addition, a time slot may also be a time unit based on a parameter set.

[0250] A time slot may also contain multiple mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of a smaller number of symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type B.

[0251] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols may also be referred to by their respective names. In addition, time units such as frames, subframes, time slots, mini-time slots, and symbols in the present disclosure may also be replaced with each other.

[0252] For example, a subframe may be referred to as a TTI, a plurality of consecutive subframes may be referred to as a TTI, and a time slot or a mini time slot may be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. In addition, the unit representing a TTI may be referred to as a time slot, a mini time slot, etc. instead of a subframe.

[0253] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in the LTE system, the base station schedules each user terminal to allocate wireless resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) in TTI units. In addition, the definition of TTI is not limited to this.

[0254] TTI can also be a transmission time unit for a data packet (transport block), code block, code word, etc. that has been channel-coded, and can also be a processing unit for scheduling, link adaptation, etc. In addition, when TTI is given, the time interval (for example, the number of symbols) to which a transport block, code block, code word, etc. is actually mapped can also be shorter than the TTI.

[0255] In addition, when a time slot or a mini time slot is called a TTI, one or more TTIs (i.e., one or more time slots or one or more mini time slots) may also be the minimum time unit of scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of scheduling may also be controlled.

[0256] A TTI having a time length of 1 ms may also be referred to as a normal TTI (TTI in 3GPP Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub time slot, a time slot, etc.

[0257] In addition, a long TTI (eg, normal TTI, subframe, etc.) may be rewritten as a TTI having a time length exceeding 1 ms, and a short TTI (eg, shortened TTI, etc.) may be rewritten as a TTI having a TTI length shorter than that of a long TTI and longer than 1 ms.

[0258] Resource Block (RB) is a resource allocation unit in the time domain and frequency domain, and may also include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, it may be 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0259] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a slot, a mini-slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks, respectively.

[0260] In addition, one or more RBs may also be referred to as a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a PRB pair, an RB pair, etc.

[0261] In addition, a resource block may be composed of one or more resource elements (RE). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0262] Bandwidth Part (BWP) (also referred to as partial bandwidth, etc.) can also represent a subset of contiguous common RBs (common resource blocks) for a parameter set in a carrier. Here, common RBs can also be identified by the index of the RB based on the common reference point of the carrier. PRBs can also be defined in a BWP and numbered within the BWP.

[0263] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). For a UE, one or more BWPs may be configured in one carrier.

[0264] At least one of the set BWPs may be activated, and the UE may not assume that a specific signal / channel is transmitted or received outside the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be rewritten as "BWP".

[0265] In addition, the above-mentioned structures such as radio frames, subframes, time slots, mini-time slots and symbols are only examples. For example, the number of subframes included in a radio frame, the number of time slots per subframe or radio frame, the number of mini-time slots included in a time slot, the number of symbols and RBs included in a time slot or mini-time slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.

[0266] In addition, the information, parameters, etc. described in the present disclosure may be represented by absolute values, relative values ​​relative to a specific value, or other corresponding information. For example, wireless resources may also be indicated by a specific index.

[0267] In the present disclosure, the names used for parameters, etc. are not limiting in all respects. Furthermore, the mathematical formulas, etc. using these parameters may be different from those explicitly disclosed in the present disclosure. The various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, and therefore, the various names assigned to these various channels and information elements are not limiting in all respects.

[0268] Information, signals, etc. described in the present disclosure may also be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description may also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0269] In addition, information, signals, etc. can be output in at least one of the following directions: from a higher layer (upper layer) to a lower layer (lower layer), and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.

[0270] The input and output information, signals, etc. may be stored in a specific location (e.g., a memory), or may be managed using a management table. The input and output information, signals, etc. may be overwritten, updated, or added. The output information, signals, etc. may also be deleted. The input information, signals, etc. may also be sent to other devices.

[0271] The notification of information is not limited to the methods / implementations described in the present disclosure, and may also be performed by other methods. For example, the notification of information in the present disclosure may also be implemented through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI))), high-layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB)), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0272] In addition, physical layer signaling may also be referred to as layer 1 / layer 2 (Layer 1 / Layer 2 (L1 / L2)) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. In addition, RRC signaling may also be referred to as an RRC message, such as an RRC connection establishment (RRC Connection Setup) message, an RRC connection reconstruction (RRC Connection Reconfiguration) message, etc. In addition, MAC signaling may also be notified using, for example, a MAC control element (MACControl Element (CE)).

[0273] Furthermore, notification of specific information (eg, notification of “it is X”) is not limited to explicit notification, but may be performed implicitly (eg, by not notifying the specific information or by notifying other information).

[0274] The determination may be made using a value represented by one bit (0 or 1), a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(eg, comparison with a specific value).

[0275] Whether software is called software, firmware, middle-ware, microcode, hardware description language, or other names, it should be broadly interpreted as meaning instructions, instruction sets, code, code segments, program code, program, sub-program, software module, application, software application, software package, routine, sub-routine, object, executable files, execution thread, procedure, function, etc.

[0276] In addition, software, instructions, information, etc. may also be sent and received via a transmission medium. For example, when the software is sent from a website, server, or other remote source using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these wired technology and wireless technology is included in the definition of transmission medium.

[0277] The terms "system" and "network" used in the present disclosure can be used interchangeably. "Network" may also refer to a device (eg, a base station) included in the network.

[0278] In the present disclosure, terms such as "precoding", "precoder", "weight (precoding weight)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmit power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", and "panel" can be used interchangeably.

[0279] In the present disclosure, terms such as "base station (BS)", "wireless base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)")", "panel", "cell", "sector", "cell group", "carrier", and "component carrier" can be used interchangeably. There are also cases where base stations are referred to by terms such as macro cell, small cell, micro cell, and pico cell.

[0280] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the entirety of the coverage area of ​​at least one of a base station and a base station subsystem that provides communication services within the coverage area.

[0281] In the present disclosure, the base station sending information to the terminal may also be rewritten as the base station instructing the terminal to control / operate based on the information.

[0282] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (User Equipment (UE))”, and “terminal” can be used interchangeably.

[0283] A mobile station may also be referred to as 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, hand set, user agent, mobile client, client or several other appropriate terms.

[0284] At least one of the base station and the mobile station may also be referred to as a transmission device, a reception device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station may be a device mounted on a moving object, a moving object body, etc.

[0285] The mobile body refers to a movable object, and the moving speed is arbitrary, and of course it also includes the situation where the mobile body stops. The mobile body includes, for example, vehicles, transport vehicles, cars, automatic two-wheeled vehicles (motorcycles), bicycles, connected cars, loading shovels, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trolleys, rickshaws, ships (ships and other watercrafts), airplanes, rockets, artificial satellites, drones, multi-rotor aircraft, quadcopters, balloons and objects carried on them, and are not limited to these. In addition, the mobile body can also be a mobile body that drives autonomously based on operating instructions.

[0286] The mobile object may be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile object that moves unmanned (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station may include a device that does not necessarily move when performing communication operations. For example, at least one of the base station and the mobile station may also be an Internet of Things (IoT) device such as a sensor.

[0287] Fig.12 1 is a diagram showing an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0288] The driving unit 41 is composed of at least one of an engine, a motor, or a combination of an engine and a motor. The steering unit 42 is composed of at least a steering wheel (also called a handlebar), and steers at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.

[0289] The electronic control unit 49 is composed of a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (for example, an input / output (IO) port) 63. Signals from various sensors 50-58 provided in the vehicle are input to the electronic control unit 49. The electronic control unit 49 may also be referred to as an ECU (Electronic Control Unit).

[0290] The signals from the various sensors 50-58 include a current signal from a current sensor 50 for sensing the current of the motor, a speed signal of the front wheels 46 / rear wheels 47 obtained by a speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 obtained by other sensors 52, a vehicle speed signal obtained by a vehicle speed sensor 53, an acceleration signal obtained by an acceleration sensor 54, a depression amount signal of the accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 obtained by a brake pedal sensor 56, an operation signal of the shift lever 45 obtained by a shift lever sensor 57, a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58, and the like.

[0291] The information service unit 59 is composed of various devices such as a vehicle navigation system, an audio system, a speaker, a display, a television, and a radio for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 59 uses information obtained from an external device via the communication module 60 and the like to provide various information / services (for example, multimedia information / multimedia services) to the occupants of the vehicle 40.

[0292] The information service unit 59 may include input devices for accepting input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.), and may also include output devices for implementing output to the outside (e.g., display, speaker, LED light, touch panel, etc.).

[0293] The driving assistance system unit 64 is composed of various devices for providing functions for preventing accidents or reducing the driving load of the driver, such as millimeter wave radar, light detection and ranging (LiDAR), camera, positioning locator (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., high-precision (High Definition (HD))) map, autonomous vehicle (Autonomous Vehicle (AV)) map, etc.), gyroscope system (e.g., inertial measurement unit (Inertial Measurement Unit (IMU)), inertial navigation unit (Inertial Navigation System (INS)), etc.), artificial intelligence (Artificial Intelligence (AI)) chip, AI processor, and one or more ECUs for controlling these devices. In addition, the driving assistance system unit 64 sends and receives various information via the communication module 60 and realizes the driving assistance function or the autonomous driving function.

[0294] The communication module 60 can communicate with the microprocessor 61 and the components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) between the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the microprocessor 61 and the memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58 provided in the vehicle 40 via the communication port 63.

[0295] The communication module 60 can be controlled by the microprocessor 61 of the electronic control unit 49, and is a communication device that can communicate with an external device. For example, various information is sent and received with the external device via wireless communication. The communication module 60 can be located either inside or outside the electronic control unit 49. The external device can also be, for example, the above-mentioned base station 10, user terminal 20, etc. In addition, the communication module 60 can also be, for example, at least one of the above-mentioned base station 10 and user terminal 20 (it can also function as at least one of the base station 10 and user terminal 20).

[0296] The communication module 60 may also transmit at least one of the signals from the various sensors 50-58 input to the electronic control unit 49, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 59 to an external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may also be referred to as an input unit that receives input. For example, the PUSCH transmitted through the communication module 60 may also include information based on the above input.

[0297] The communication module 60 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) transmitted from an external device, and displays it to the information service unit 59 provided in the vehicle. The information service unit 59 may also be referred to as an output unit for outputting information (for example, outputting information to a display, a speaker, etc. based on the PDSCH received by the communication module 60 (or data / information decoded from the PDSCH)).

[0298] In addition, the communication module 60 stores various information received from the external device in the memory 62 that can be used by the microprocessor 61. The microprocessor 61 can also control the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, and various sensors 50-58 of the vehicle 40 based on the information stored in the memory 62.

[0299] In addition, the base station in the present disclosure may also be rewritten as a user terminal. For example, the various methods / implementations of the present disclosure may also be applied to a structure in which the communication between a base station and a user terminal is replaced by the communication between multiple user terminals (for example, it may also be referred to as device-to-device (D2D)), vehicle-to-everything (V2X), etc.). In this case, it may also be set as a structure in which the user terminal 20 has the functions possessed by the above-mentioned base station 10. In addition, terms such as "uplink" and "downlink" may also be rewritten as terms corresponding to inter-terminal communication (for example, "sidelink"). For example, uplink channels, downlink channels, etc. may also be rewritten as sidelink channels.

[0300] Likewise, the user terminal in the present disclosure may be rewritten as a base station. In this case, the base station 10 may have the functions of the user terminal 20 described above.

[0301] In the present disclosure, the actions are assumed to be performed by the base station, and sometimes by its upper node depending on the situation. Obviously, in a network including one or more network nodes having a base station, various operations performed for communication with a terminal can be performed by the base station, one or more network nodes other than the base station (for example, Mobility Management Entity (MME)), Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0302] The various methods / implementations described in this disclosure may be used alone or in combination, and may be used in a switched manner as the method is executed. In addition, the processing procedures, timings, flow charts, etc. of the various methods / implementations described in this disclosure may be reversed in order as long as they are not contradictory. For example, for the method described in this disclosure, the elements of various steps are presented in an illustrative order, but are not limited to the specific order presented.

[0303] The various modes / implementations described in the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or a decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, and next-generation systems based on these enhancements, revisions, productions, or regulations. In addition, multiple systems may be combined (for example, LTE or LTE-A, combination with 5G, etc.) for application.

[0304] The phrase “based on” used in the present disclosure does not mean “based only on” unless otherwise specified. In other words, the phrase “based on” means both “based only on” and “based at least on”.

[0305] Any reference to an element using the terms "first", "second", etc. used in this disclosure does not fully define the amount or order of these elements. These terms can be used in this disclosure as a convenient method to distinguish between two or more elements. Therefore, reference to the first and second elements does not mean that only two elements can be used or that the first element must take precedence over the second element in some form.

[0306] The term "determining" used in this disclosure may include a variety of actions. For example, "determining" may also refer to situations where judging, calculating, computing, processing, deriving, investigating, looking up (e.g., searching in a table, database or other data structure), ascertaining, etc. are considered to be "determining".

[0307] In addition, “judgment (decision)” may also refer to situations where receiving (e.g., receiving information), transmitting (e.g., sending information), input (input), output (output), accessing (e.g., accessing data in a memory), etc. are regarded as making a “judgment (decision)”.

[0308] In addition, "judgment (decision)" can also be regarded as a situation where resolving, selecting, choosing, establishing, comparing, etc. are regarded as "judgment (decision)". That is, "judgment (decision)" can also be regarded as a situation where some actions are regarded as "judgment (decision)".

[0309] In addition, "judge (decide)" can also be rewritten as "assuming (assuming)", "expecting (expecting)", "considering (considering)" and so on.

[0310] The “maximum transmit power” described in the present disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated maximum transmit power).

[0311] The terms "connected", "coupled", or all their variations used in this disclosure refer to all direct or indirect connections or combinations between two or more elements, and may include the situation where one or more intermediate elements exist between two elements that are "connected" or "coupled" to each other. The combination or connection between elements may be physical, logical, or a combination thereof. For example, "connection" may also be rewritten as "access".

[0312] In the present disclosure, when two elements are connected, it is possible to consider being "connected" or "combined" to each other using one or more wires, cables, printed electrical connections, etc., as well as being "connected" or "combined" to each other using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, light (both visible and invisible) region, etc. as several non-limiting and non-inclusive examples.

[0313] In the present disclosure, the term "A is different from B" may also mean "A and B are different from each other". In addition, the term may also mean "A and B are different from C, respectively". The terms "separate" and "combined" may also be interpreted in the same manner as "different".

[0314] When the terms “include,” “including,” and variations thereof are used in the present disclosure, these terms have an inclusive meaning, similar to the term “comprising.” Furthermore, the term “or” used in the present disclosure does not have an exclusive OR meaning.

[0315] In the present disclosure, when an article is added by translation like a, an, and the in English, for example, the present disclosure may also include a case where the noun following the article is in plural form.

[0316] In the present disclosure, "below", "less than", "above", "more than", "equal to", etc. can also be replaced by each other. In addition, in the present disclosure, sentences meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can also be replaced by each other without limiting the original degree, comparative degree, and superlative degree. In addition, in the present disclosure, sentences meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can also be replaced by each other as expressions attached with "ith" (i is an arbitrary integer) without limiting the original degree, comparative degree, and superlative degree (for example, "highest" can also be replaced by "i-th highest").

[0317] In the present disclosure, “of,” “for,” “regarding,” “related to,” “associated with,” etc. may also be rephrased.

[0318] The invention involved in the present disclosure is described in detail above, but it is obvious to those skilled in the art that the invention involved in the present disclosure is not limited to the embodiments described in the present disclosure. The invention involved in the present disclosure can be implemented as a modified and altered mode without departing from the gist and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is for the purpose of illustrative description and does not have any limiting meaning on the invention involved in the present disclosure.

Claims

1. A terminal having: a sending unit, sending support information, wherein the support information indicates support for a specific receiving function, wherein the specific receiving function is used for interference reduction in receiving; and A control unit controls the reception using the specific reception function.

2. The terminal according to claim 1, wherein: The support information indicates support for the specific reception function using an index or a bit position corresponding to the specific reception function.

3. The terminal according to claim 1, wherein: The control unit determines channel state information CSI based on a setting corresponding to the specific reception function and a measurement result.

4. The terminal according to claim 1, wherein: The control unit controls reception of resource allocation information accompanied by a parameter higher than a specific value for modulation or coding.

5. A wireless communication method of a terminal, comprising: a step of sending support information indicating support for a specific reception function for interference reduction in reception; and The step of controlling the receiving is performed using the specific receiving function.

6. A base station, comprising: a receiving unit, receiving support information, where the support information is used to indicate that the terminal supports a specific receiving function for interference reduction; and A control unit controls transmission based on the specific receiving function.

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