WO2023199512A1 - 端末、無線通信方法及び基地局 - Google Patents

端末、無線通信方法及び基地局 Download PDF

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Publication number
WO2023199512A1
WO2023199512A1 PCT/JP2022/017920 JP2022017920W WO2023199512A1 WO 2023199512 A1 WO2023199512 A1 WO 2023199512A1 JP 2022017920 W JP2022017920 W JP 2022017920W WO 2023199512 A1 WO2023199512 A1 WO 2023199512A1
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WIPO (PCT)
Prior art keywords
information
specific
csi
receiver
reception
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Ceased
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PCT/JP2022/017920
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English (en)
French (fr)
Japanese (ja)
Inventor
翔一 樋口
知也 小原
真哉 岡村
拓真 中村
康介 島
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NTT Docomo Inc
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NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to CN202280096746.XA priority Critical patent/CN119234433A/zh
Priority to EP22937489.7A priority patent/EP4510662A4/en
Priority to JP2024514777A priority patent/JPWO2023199512A1/ja
Priority to PCT/JP2022/017920 priority patent/WO2023199512A1/ja
Priority to US18/856,444 priority patent/US20250267518A1/en
Publication of WO2023199512A1 publication Critical patent/WO2023199512A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present disclosure relates to a terminal, a wireless communication method, and a base station in a next-generation mobile communication system.
  • LTE Long Term Evolution
  • 3GPP Rel. 10-14 LTE-Advanced (3GPP Rel. 10-14) has been specified for the purpose of further increasing capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Releases (Rel.) 8 and 9).
  • LTE Long Term Evolution
  • 5G 5th generation mobile communication system
  • 5G+ plus
  • NR New Radio
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately utilize the functions of the terminal's receiver.
  • a terminal includes a transmitter that transmits support information indicating support for a specific reception function for reducing interference in reception, and a control unit that controls the reception using the specific reception function.
  • FIGS. 1A and 1B are diagrams illustrating an example of the association between an index/value and the presence or absence of a receiver.
  • 2A and 2B are diagrams illustrating an example of an association between an index and a receiver/receiving function.
  • FIG. 3 is a diagram illustrating an example of association between an index, a receiver, and reception quality.
  • FIG. 4 is a diagram showing an example of Table 1 for CQI.
  • FIG. 5 is a diagram showing an example of Table 2 for CQI.
  • FIG. 6 is a diagram showing an example of Table 3 for CQI.
  • FIG. 7 is a diagram showing an example of Table 4 for CQI.
  • FIG. 8 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 1A and 1B are diagrams illustrating an example of the association between an index/value and the presence or absence of a receiver.
  • FIG. 3 is a diagram illustrating an example of association between an index,
  • FIG. 9 is a diagram illustrating an example of the configuration of a base station according to an embodiment.
  • FIG. 10 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment.
  • FIG. 11 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment.
  • FIG. 12 is a diagram illustrating an example of a vehicle according to an embodiment.
  • a terminal also referred to as a user terminal, User Equipment (UE), etc. transmits channel state information (CSI) based on a reference signal (RS) (or resources for the RS). )) (also referred to as determination, calculation, estimation, measurement, etc.) and transmits (also referred to as report, feedback, etc.) the generated CSI to the network (for example, a base station).
  • the CSI may be transmitted to the base station using, for example, an uplink control channel (eg, Physical Uplink Control Channel (PUCCH)) or an uplink shared channel (eg, Physical Uplink Shared Channel (PUSCH)).
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the RS used to generate CSI is, for example, a channel state information reference signal (CSI-RS), a synchronization signal/physical broadcast channel (SS/PBCH) block, or a synchronization signal/physical broadcast channel (SS/PBCH) block.
  • CSI-RS channel state information reference signal
  • SS/PBCH synchronization signal/physical broadcast channel
  • SS/PBCH synchronization signal/physical broadcast channel
  • DMRS demodulation reference signal
  • the CSI-RS may include at least one of a Non-Zero Power (NZP) CSI-RS and a CSI-Interference Management (CSI-IM).
  • the SS/PBCH block is a block that includes SS and PBCH (and corresponding DMRS), and may be called an SS block (SSB) or the like. Further, the SS may include at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • CSI includes a channel quality indicator (CQI), a precoding matrix indicator (PMI), a CSI-RS resource indicator (CRI), and a SS /PBCH block resource indicator (SSBRI), layer indicator (LI), rank indicator (RI), L1-RSRP (reference signal reception in layer 1) Power (Layer 1 Reference Signal Received Power)), L1-RSRQ (Reference Signal Received Quality), L1-SINR (Signal to Interference plus Noise Ratio), L1-SNR (Signal to Noise Ratio), etc. even if it contains at least one of good.
  • CQI channel quality indicator
  • PMI precoding matrix indicator
  • CRI CSI-RS resource indicator
  • SSBRI SS /PBCH block resource indicator
  • L1-RSRP reference signal reception in layer 1 Power (Layer 1 Reference Signal Received Power)
  • L1-RSRQ Reference Signal Received Quality
  • L1-SINR Signal Received Quality
  • L1-SNR Synignal to Noise Ratio
  • the UE may receive information regarding 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 an information element (IE) of radio resource control (RRC).
  • IE information element
  • RRC radio resource control
  • the report configuration information may include, for example, at least one of the following.
  • - Information about the type of CSI report (report type information, e.g. "reportConfigType” of RRC IE)
  • - Information regarding one or more quantities of CSI to be reported (one or more CSI parameters)
  • report quantity information e.g. "reportQuantity” of RRC IE
  • report quantity information e.g. "reportQuantity” of RRC IE
  • resource information for example, "CSI-ResourceConfigId" of the RRC IE
  • frequency domain information e.g. "reportFreqConfiguration" of RRC IE
  • the report type information may include periodic CSI (P-CSI) reporting, aperiodic CSI (A-CSI) reporting, or semi-persistent (semi-persistent, semi-persistent) reporting.
  • P-CSI periodic CSI
  • A-CSI aperiodic CSI
  • SP-CSI Semi-Persistent CSI
  • the report amount information may specify at least one combination of the above CSI parameters (for example, CRI, RI, PMI, CQI, LI, L1-RSRP, etc.).
  • the resource information may be an ID of an RS resource.
  • the RS resources may include, for example, non-zero power CSI-RS resources or SSBs and CSI-IM resources (for example, zero-power CSI-RS resources).
  • the frequency domain information may also indicate the frequency granularity of the CSI report.
  • the frequency granularity may include, for example, widebands and subbands.
  • 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 entire bandwidth part (BWP) within a certain carrier. There may be.
  • the wideband may also be referred to as a CSI reporting band, the entire CSI reporting band, or the like.
  • a subband is a part of a wideband, and may be composed of one or more resource blocks (Resource Block (RB) or Physical Resource Block (PRB)).
  • the size of the subband may be determined according to the size of the BWP (number of PRBs).
  • the frequency domain information may indicate whether wideband or subband PMI is to be reported (the frequency domain information may include, for example, the RRC IE used to determine whether to report wideband or subband PMI). (may include "pmi-FormatIndicator").
  • the UE may determine the frequency granularity of the CSI report (ie, either wideband PMI report or subband PMI report) based on at least one of the report amount information and frequency domain information.
  • wideband PMI reporting is configured (determined)
  • one wideband PMI may be reported for the entire CSI reporting band.
  • subband PMI reporting is configured, a single wideband indication i1 is reported for the entire CSI reporting band, and a subband indication for each of one or more subbands within the entire CSI reporting band. (one subband indication) i2 (eg, subband indication of each subband) may be reported.
  • the UE performs channel estimation using the received RS and estimates a channel matrix H.
  • the UE feeds back an index (PMI) that is determined based on the estimated channel matrix.
  • the PMI may indicate a precoder matrix (also simply referred to as a precoder) that the UE considers appropriate for use in downlink (DL) transmission to the UE.
  • a precoder matrix also simply referred to as a precoder
  • Each value of PMI may correspond to one precoder matrix.
  • a set of PMI values may correspond to a different set of precoder matrices, referred to as a precoder codebook (also simply referred to as a codebook).
  • a CSI report may include one or more types of CSI.
  • the CSI may 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 be expressed as a single layer, and a multibeam may be expressed as a plurality of beams.
  • type 1 CSI does not assume multi-user multiple input multiple output (MIMO), and type 2 CSI may assume multi-user MIMO.
  • the codebook may 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.). Further, type 1 CSI may 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 defined for each.
  • Type 1 and Type I may be read interchangeably.
  • Type 2 and Type II may be interchanged.
  • the uplink control information (UCI) type may include at least one of Hybrid Automatic Repeat Request ACKnowledgement (HARQ-ACK), scheduling request (SR), and CSI.
  • UCI may be carried by PUCCH or PUSCH.
  • the UCI may include one CSI part for wideband PMI feedback.
  • CSI report #n includes PMI wideband information if reported.
  • the UCI may include two CSI parts for subband PMI feedback.
  • CSI part 1 includes wideband PMI information.
  • CSI part 2 includes one wideband PMI information and some subband PMI information.
  • CSI part 1 and CSI part 2 are encoded separately.
  • the UE is configured with N (N ⁇ 1) CSI report settings and resource settings of M (M ⁇ 1) CSI resource settings by an upper layer.
  • the CSI report configuration (CSI-ReportConfig) includes channel measurement resource settings (resourcesForChannelMeasurement), interference CSI-IM resource settings (csi-IM-ResourceForInterference), and interference NZP-CSI-RS settings (nzp-CSI-RS -ResourceForInterference), report quantity (reportQuantity), etc.
  • Each of the channel measurement resource setting, interference CSI-IM resource setting, and interference NZP-CSI-RS setting is 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, eg, NZP-CSI-RS resource set or CSI-IM resource set).
  • NW Network-to-Network
  • UE terminals
  • one possible method is to improve the sophistication of the receiver included in the UE.
  • MMSE Minimum Mean Square Error
  • IRC Interference Rejection Combining
  • the MMSE-IRC receiver estimates the interference covariance matrix (antenna weighting matrix). This weighting matrix creates a minimum point (null) of the antenna gain in the direction of interference arrival.
  • the single user (SU)-multi-input multi-output (MIMO) interference mitigation advanced receiver introduced in 15 is an optional without capability signaling.
  • the SU-MIMO interference mitigation advanced receiver provides reduced complexity maximum likelihood (R) with enhanced inter-stream interference suppression for SU-MIMO transmissions. -ML)) receiver.
  • RX receive
  • RX receive
  • the NW cannot appropriately control the advanced receiver.
  • Existing NWs determine resource allocation and MCS based on the transmission path state (CSI (at least one of PMI, RI, and CQI)) reported by the UE.
  • CSI at least one of PMI, RI, and CQI
  • the NW does not determine resource allocation or MCS based on the receiver included in the terminal.
  • the NW may decide on inefficient resource allocation or inappropriate MCS. There is. For example, a case is assumed in which steps 1 to 3 below are performed.
  • steps 1 to 3 A UE that cannot suppress interference from other cells reports CSI in an environment with little interference from other cells to the NW.
  • the NW allocates resources based on this report.
  • Step 3 When the UE moves to an environment with a lot of interference and receives a signal, there is a possibility that the signal cannot be properly received and the allocated resources are wasted.
  • the present inventors came up with a control method for the UE receiver.
  • A/B and “at least one of A and B” may be read interchangeably. Furthermore, in the present disclosure, “A/B/C” may mean “at least one of A, B, and C.”
  • Radio Resource Control RRC
  • RRC parameters RRC parameters
  • RRC messages upper layer parameters, fields, Information Elements (IEs), settings, etc.
  • IEs Information Elements
  • CE Medium Access Control Element
  • update command activation/deactivation command, etc.
  • the upper layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), or the like.
  • Broadcast information includes, for example, a master information block (MIB), a system information block (SIB), a minimum system information (RMSI), and other system information ( Other System Information (OSI)) may also be used.
  • MIB master information block
  • SIB system information block
  • RMSI minimum system information
  • OSI Other System Information
  • the physical layer signaling may be, for example, downlink control information (DCI), uplink control information (UCI), etc.
  • DCI downlink control information
  • UCI uplink control information
  • an index an identifier (ID), an indicator, a resource ID, etc.
  • ID an identifier
  • indicator an indicator
  • resource ID a resource ID
  • sequences, lists, sets, groups, groups, clusters, subsets, etc. may be used interchangeably.
  • a specific receiver 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, and a specific receiver.
  • a receiver having a function, receiver AAA, receiver XX, and specific reception function may be read interchangeably.
  • the terms specific reception function, optional function, optional function without capability signaling, non-mandatory function, and reception function YY may be interchanged.
  • a normal receiver a receiver that is not a specific receiver, a receiver with a mandatory function, a receiver with a normal reception function, and a normal reception function may be read interchangeably.
  • the terms "normal reception function” and "essential function” may be read interchangeably.
  • a specific UE, a UE equipped with a specific receiver, and a UE supporting a specific reception function may be interchanged with each other.
  • a normal UE, a UE that includes a normal receiver, a UE that supports a normal reception function, a UE that does not have a specific receiver, and a UE that does not support a specific reception function may be interchanged with each other.
  • parameters related to modulation/encoding, modulation method, modulation order, coding rate, efficiency, and transport block size may be read interchangeably.
  • This embodiment relates to notification/reporting of support for specific receivers/specific receiving functions.
  • the UE may notify/report information (support information) indicating that the UE is equipped with a specific receiver/specific reception function to the NW.
  • the values 0 and 1 may correspond to whether the UE is equipped with a specific receiver.
  • the support information includes a value (index) of 0 or 1.
  • a support information value of 0 may indicate that the UE is equipped with a specific receiver (yes), and a support information value of 1 may indicate that the UE is not equipped with a specific receiver (absent).
  • the meaning of the values 0 and 1 may be reversed from this example.
  • the NW may notify the UE in advance of information that sets/specifies the type of specific receiver to be reported (receiver setting information).
  • the UE may notify the NW of information (support information) indicating whether the UE is equipped with the specific receiver indicated in the receiver setting information.
  • the contents of the receiver configuration information may differ depending on the base station (may be cell-specific) or may differ depending on the UE (may be UE-specific (UE-specific)).
  • the receiver configuration information indicates that the specific receiver is receiver AAA.
  • the support information includes a value (index) of 0 or 1.
  • a support information value of 0 may indicate that the UE is equipped with a receiver AAA (yes), and a support information value of 1 may indicate that the UE is not equipped with a receiver AAA (absent).
  • the meaning of the values 0 and 1 may be reversed from this example.
  • the NW can recognize whether the UE is equipped with a specific receiver.
  • This embodiment relates to specific receiver/specific receiving function type notification/reporting.
  • the UE may notify/report information regarding the specific receiver/specific reception function that it supports (equips) (receiver support information) to the NW.
  • Receiver support information may indicate the name/type/capability of the receiver.
  • the specific reception function may be more resistant to interference than the normal reception function, reduce/suppress interference, etc.
  • An index (receiver number) value may be associated (or assigned) to each type of receiver.
  • the receiver support information may notify the value of the index corresponding to the UE's receiver.
  • receiver support information index values 0, 1, 2, 3, ... may be associated with different types of receivers.
  • Receiver support information index values 0, 1, 2, and 3 are normal receiver, SU-MIMO interference mitigation advanced receiver, MMSE-IRC receiver for inter-cell interference, and MMSE-IRC for intra-cell inter-user interference. It may correspond to each receiver.
  • the receiver support information may be a bitmap. Each bit (bit position) within the bitmap may correspond to a type of receiver. The value 0 and 1 of each bit may correspond to whether the UE is equipped with a corresponding type of receiver. A value of 1 for each bit may indicate that the UE is equipped with a corresponding receiver (yes), and a value of 0 for each bit may indicate that the UE is not equipped with a corresponding receiver (absent). . The meaning of the values 0 and 1 may be reversed from this example. The number of types of receivers provided in the UE (the number of values 1 in the bitmap) may be one or more than one.
  • An index (function number) value may be associated (or assigned) to each specific reception function that a specific receiver has.
  • the receiver support information may inform the value of the index corresponding to the receiver capability of the UE.
  • receiver support information index values 0, 1, ... may be associated with different types of receivers.
  • the index values 0 and 1 of the receiver support information may correspond to a normal receiver, interference cancellation between cells, and interference cancellation between users within a cell, respectively.
  • the receiver support information may be a bitmap. Each bit within the bitmap may correspond to a function of the receiver.
  • the values 0 and 1 of each bit may correspond to whether the UE is equipped with the corresponding functionality. A value of 1 for each bit may indicate that the UE is equipped with the corresponding function (present), and a value of 0 for each bit may indicate that the UE is not equipped with the corresponding function (absent). The meaning of the values 0 and 1 may be reversed from this example.
  • the number of receiver functions (the number of value 1 in the bitmap) provided in the UE may be one or more.
  • the UE may notify the NW of information (reception quality information) about reception quality (RSRP/RSRQ/SINR, etc.) corresponding to the type of receiver it supports.
  • the UE may notify the NW of receiver support information (index) and reception quality information.
  • the reception quality information may be associated with a particular value of the receiver support information index.
  • the UE may notify corresponding reception quality information.
  • the receiver support information index values 0 and 2 are associated with reception quality information RSRQ and RSRP.
  • the UE may notify the RSRQ value xx and the RSRP value yy as reception quality information.
  • the NW can recognize the type/function of the UE's receiver.
  • This embodiment relates to CSI reporting.
  • the UE may determine/change the format/parameters (CSI parameters) of the CSI (propagation path state) report depending on the type of receiver supported by the UE.
  • the reported CSI parameters may include at least one of PMI, RI, CQI, and CRI.
  • the NW may notify the UE in advance of information that sets/specifies the format/parameters to be reported (report setting information, settings).
  • the UE may determine the CSI based on the format and measurement results indicated in the report configuration information, and may report/notify the CSI to the NW.
  • the contents of the report configuration information may differ depending on the base station (may be cell-specific) or may differ depending on the UE (may be UE-specific (UE-specific)).
  • the CQI index and its interpretation may be given by Table 1 ( Figure 4) or Table 3 ( Figure 6).
  • Table 2 For reporting of CQI based on QPSK, 16QAM, 64QAM, 256QAM, 1024QAM (up to 1024QAM), the CQI index and its interpretation may be given by Table 4 (FIG. 7).
  • Tables 1 to 4 shows the association of modulation scheme, coding rate, and efficiency with respect to CQI index.
  • the UE may derive the highest CQI index for each CQI value reported within uplink slot n that satisfies the following conditions: [Conditions] A single PDSCH transport block occupies a group of downlink physical resource blocks called CSI reference resources, with a combination of modulation scheme, target coding rate, and transport block size corresponding to the CQI index. , with a transport block error probability (BLER) that does not exceed a threshold a or b below the threshold a or b. [[Threshold a]] 0.1 when the upper layer parameter (cqi-Table in CSI-ReportConfig) sets table 1, 2, or 4. [[Threshold b]] 0.00001 when the upper layer parameter (cqi-Table in CSI-ReportConfig) sets table 3 (high reliability).
  • BLER transport block error probability
  • the combination of modulation scheme and transport block size may correspond to the CQI index.
  • [Case a] A case where the combination for transmission on the PDSCH in the CSI reference resource may be signaled according to the transport block size determination described in the specification.
  • [Case b] A case where the modulation scheme is indicated by its CQI index.
  • [Case c] The case where that combination of transport block size and modulation scheme, when applied to that reference resource, results in an effective channel coding rate that is closest to the coding rate indicated by its CQI index. If more than one combination of transport block size and modulation scheme yields an effective channel coding rate approximately equal to the coding rate indicated by its CQI index, then Only combinations are relevant.
  • the CQI index and its interpretation may follow existing tables (existing format/parameters).
  • the existing table may be at least one of tables 1 to 4.
  • the specific table may include at least one of the following tables XX and YY.
  • Table XX Table used by UEs supporting specific receiver XX.
  • Table YY A table used by a UE that supports the function YY of a specific receiver.
  • the CQI index and its interpretation may follow a new table (new format/parameters).
  • a specific UE may be configured with a specific table among the existing table and the new table.
  • the specific table may include modulation orders/efficiencies higher than the specific value.
  • the specific table may include at least one of table XX, table YY, and table 4. Only the UE that has sent the notification indicating the specific receiver/specific reception function may be configured with the specific table. It may be specified that normally the UE does not expect to be configured with a specific table. It may be specified that UEs that have not sent a notification indicating a specific receiver/specific reception capability are not expected to be configured with a specific table.
  • a specific UE may be configured to report specific formats/parameters.
  • the specific table may include parameters corresponding to modulation orders/efficiencies higher than the specific value. Only UEs that have sent notifications indicating specific receiver/specific receiving capabilities may be configured to report specific formats/parameters. It may be specified that normally the UE does not expect to be configured to report specific formats/parameters. It may be specified that UEs that have not sent a notification indicating specific receiver/specific reception capabilities are not expected to be configured to report specific formats/parameters.
  • the UE can report appropriate CSI.
  • This embodiment relates to resource allocation.
  • the NW may implement/control resource allocation based on information (support information/receiver support information/CSI) notified from the UE.
  • the resource may be a downlink (eg, PDSCH) resource or an uplink (eg, PUSCH) resource.
  • the resource allocation may be at least one of a time domain resource allocation and a frequency domain resource allocation.
  • the NW may perform resource allocation based on the information notified by the first or second embodiment and the CSI report having an existing format. For example, the UE may request resources for a UE equipped with a specific receiver based on the CSI report or based on better conditions than the CSI report (assuming higher reception quality than the reported reception quality). may be assigned. For example, the UE may, for UEs not equipped with a specific receiver, based on the CSI report or based on conditions worse than the CSI report (assuming reception quality lower than the reported reception quality). May allocate resources.
  • the NW may perform resource allocation based on the information notified by the first or second embodiment and the CSI report with new format/parameters in the third embodiment. For example, a UE may allocate resources to UEs with particular receivers based on CSI reports.
  • a specific UE may receive resource allocation information (instructions/configurations) with parameters higher than the specific value regarding modulation/coding.
  • the fact that the parameter is higher than the specific value may include at least one of the modulation order being higher than the specific modulation order and the coding rate being higher than the specific coding rate.
  • Only UEs that have sent notifications indicating specific receiver/specific receiving capabilities may receive resource allocation information with parameters higher than the specific value. It may be specified that normally the UE does not expect to receive resource allocation information with parameters higher than a certain value. It may be provided that a UE that has not sent a notification indicating specific receiver/specific receiving capabilities is not expected to receive resource allocation information with parameters higher than a specific value.
  • the NW determines the number of UEs equipped with normal receivers (normal UEs) and the number of UEs equipped with specific receivers (specific UEs) in the cell, based on the information notified by the first or second embodiment. You may recognize/understand that.
  • the NW may make resource allocation more efficient in its own cell (serving cell) and neighboring cells 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.
  • the NW may instruct the UE to perform handover even if the reception quality does not meet the handover threshold.
  • a specific UE can communicate using a modulation order higher than the modulation order normally used for the UE. In this case, when the specific UE transmits and receives the same amount of data as the normal UE, it requires fewer resources than the normal UE.
  • the NW aligns (brings closer to) the number of normal UEs existing in its own cell and neighboring cells and the number of specific UEs existing in its own cell and neighboring cells.
  • the NW considers the conditions (propagation environment, frequency, etc.) of its own cell and neighboring cells, and assigns the specific UE to a worse condition (worse propagation environment, frequency with more interference) to find a better condition. (frequencies with better propagation environment, less interference).
  • the NW may recognize/understand the state based on the reception quality report in the second embodiment or other reports (measurement reports).
  • the NW can appropriately allocate resources and improve resource utilization efficiency.
  • the NW may set/instruct enable/disable of at least one function in the first to third embodiments.
  • the report from the UE to the NW in at least one of the first to third embodiments may be periodic.
  • the reporting period may be different between a specific UE and a normal UE. For example, since the specific UE is resistant to changes in the communication environment, the reporting cycle of the specific UE may be longer than the reporting cycle of the normal UE.
  • Time domain resource allocation may be notified using existing time domain resource allocation (TDRA). New TDRAs for specific UEs may be introduced (and may be specified in the specifications). Time domain resource allocation for a particular UE may be notified using the new TDRA.
  • TDRA time domain resource allocation
  • DCI/MAC CE/RRC signaling may be used for notification from the NW to the UE in at least one of the first to fourth embodiments.
  • the report from the UE to the NW in at least one of the first to second embodiments may be reported together with the existing report from the UE to the NW (within the PUCCH/PUSCH that includes the existing report). .
  • At least one of the embodiments described above may apply only to UEs that have reported or support a particular UE capability.
  • the particular UE capability may indicate at least one of the following: - Support processing/operation/control/information for at least one of the above embodiments.
  • the above-mentioned specific UE capability may be a capability that is applied across all frequencies (commonly regardless of frequency), or may be a capability for each frequency (for example, cell, band, BWP). , capability for each frequency range (for example, Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), or for each subcarrier spacing (SCS). It may be the ability of
  • the above-mentioned specific UE capability may be a capability that is applied across all duplex schemes (commonly regardless of the duplex scheme), or may be a capability that is applied across all duplex schemes (for example, Time Division Duplex).
  • the capability may be for each frequency division duplex (TDD)) or frequency division duplex (FDD)).
  • the UE is configured with specific information related to the embodiment described above by upper layer signaling.
  • the specific information may be information indicating enabling at least one feature of the embodiments described above, any RRC parameters for a specific release (eg, Rel. 18), or the like.
  • the UE does not support at least one of the specific UE capabilities or is not configured with the specific information, for example, Rel. 15/16 operations may be applied.
  • the UE can realize the above functions while maintaining compatibility with existing specifications.
  • a transmitter that transmits support information indicating support for a specific reception function for reducing interference in reception;
  • a terminal comprising: a control unit that controls the reception using the specific reception function.
  • the support information indicates support for the specific reception function using an index or a bit position corresponding to the specific reception function.
  • the control unit determines channel state information (CSI) based on a setting corresponding to the specific reception function and a measurement result.
  • CSI channel state information
  • wireless communication system The configuration of a wireless communication system according to an embodiment of the present disclosure will be described below.
  • communication is performed using any one of the wireless communication methods according to the above-described embodiments of the present disclosure or a combination thereof.
  • FIG. 8 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
  • the wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc. specified by the Third Generation Partnership Project (3GPP). .
  • LTE Long Term Evolution
  • 5G NR 5th generation mobile communication system New Radio
  • 3GPP Third Generation Partnership Project
  • the wireless communication system 1 may support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)).
  • MR-DC has dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), and dual connectivity between NR and LTE (NR-E -UTRA Dual Connectivity (NE-DC)).
  • RATs Radio Access Technologies
  • MR-DC has dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), and dual connectivity between NR and LTE (NR-E -UTRA Dual Connectivity (NE-DC)).
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • EN-DC E-UTRA-NR Dual Connectivity
  • NE-DC NR-E -UTRA Dual Connectivity
  • the LTE (E-UTRA) base station (eNB) is the master node (Master Node (MN)), and the NR base station (gNB) is the secondary node (Secondary Node (SN)).
  • the NR base station (gNB) is the MN
  • the LTE (E-UTRA) base station (eNB) is the SN.
  • the wireless communication system 1 has dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC) where both the MN and SN are NR base stations (gNB)). )) may be supported.
  • dual connectivity NR-NR Dual Connectivity (NN-DC) where both the MN and SN are NR base stations (gNB)).
  • the wireless communication system 1 includes a base station 11 that forms a macro cell C1 with relatively wide coverage, and base stations 12 (12a-12c) that are located within the macro cell C1 and form a small cell C2 that is narrower than the macro cell C1. You may prepare.
  • User terminal 20 may be located within at least one cell. The arrangement, number, etc. of each cell and user terminal 20 are not limited to the embodiment shown in the figure. Hereinafter, when base stations 11 and 12 are not distinguished, they will be collectively referred to as base station 10.
  • the user terminal 20 may be connected to at least one of the plurality of base stations 10.
  • the user terminal 20 may use at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).
  • CA carrier aggregation
  • CC component carriers
  • DC dual connectivity
  • Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)).
  • Macro cell C1 may be included in FR1
  • small cell C2 may be included in FR2.
  • FR1 may be a frequency band below 6 GHz (sub-6 GHz)
  • FR2 may be a frequency band above 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and FR1 may correspond to a higher frequency band than FR2, for example.
  • the user terminal 20 may communicate using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.
  • TDD time division duplex
  • FDD frequency division duplex
  • the plurality of base stations 10 may be connected by wire (for example, optical fiber, X2 interface, etc. compliant with Common Public Radio Interface (CPRI)) or wirelessly (for example, NR communication).
  • wire for example, optical fiber, X2 interface, etc. compliant with Common Public Radio Interface (CPRI)
  • NR communication for example, when NR communication is used as a backhaul between base stations 11 and 12, base station 11, which is an upper station, is an Integrated Access Backhaul (IAB) donor, and base station 12, which is a relay station, is an IAB donor. May also be called a node.
  • IAB Integrated Access Backhaul
  • the base station 10 may be connected to the core network 30 via another base station 10 or directly.
  • the core network 30 may include, for example, at least one of Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), and the like.
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the user terminal 20 may be a terminal compatible with at least one of communication systems such as LTE, LTE-A, and 5G.
  • an orthogonal frequency division multiplexing (OFDM)-based wireless access method may be used.
  • OFDM orthogonal frequency division multiplexing
  • CP-OFDM Cyclic Prefix OFDM
  • DFT-s-OFDM Discrete Fourier Transform Spread OFDM
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a wireless access method may also be called a waveform.
  • other wireless access methods for example, other single carrier transmission methods, other multicarrier transmission methods
  • the UL and DL radio access methods may be used as the UL and DL radio access methods.
  • the downlink channels include a physical downlink shared channel (PDSCH) shared by each user terminal 20, a broadcast channel (physical broadcast channel (PBCH)), and a downlink control channel (physical downlink control). Channel (PDCCH)) or the like may be used.
  • PDSCH physical downlink shared channel
  • PBCH physical broadcast channel
  • PDCCH downlink control channel
  • uplink channels include a physical uplink shared channel (PUSCH) shared by each user terminal 20, an uplink control channel (PUCCH), and a random access channel. (Physical Random Access Channel (PRACH)) or the like may be used.
  • PUSCH physical uplink shared channel
  • PUCCH uplink control channel
  • PRACH Physical Random Access Channel
  • User data, upper layer control information, System Information Block (SIB), etc. are transmitted by the PDSCH.
  • User data, upper layer control information, etc. may be transmitted by PUSCH.
  • a Master Information Block (MIB) may be transmitted via the PBCH.
  • Lower layer control information may be transmitted by PDCCH.
  • the lower layer control information may include, for example, downlink control information (DCI) that includes scheduling information for at least one of PDSCH and PUSCH.
  • DCI downlink control information
  • DCI that schedules PDSCH may be called DL assignment, DL DCI, etc.
  • DCI that schedules PUSCH may be called UL grant, UL DCI, etc.
  • PDSCH may be replaced with DL data
  • PUSCH may be replaced with UL data.
  • a control resource set (CONtrol REsource SET (CORESET)) and a search space may be used to detect the PDCCH.
  • CORESET corresponds to a resource for searching DCI.
  • the search space corresponds to a search area and a search method for PDCCH candidates (PDCCH candidates).
  • PDCCH candidates PDCCH candidates
  • One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a certain search space based on the search space configuration.
  • One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels.
  • One or more search spaces may be referred to as a search space set. Note that “search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, etc. in the present disclosure may be read interchangeably.
  • the PUCCH allows channel state information (CSI), delivery confirmation information (for example, may be called Hybrid Automatic Repeat Request ACKnowledgement (HARQ-ACK), ACK/NACK, etc.), and scheduling request ( Uplink Control Information (UCI) including at least one of SR)) may be transmitted.
  • CSI channel state information
  • delivery confirmation information for example, may be called Hybrid Automatic Repeat Request ACKnowledgement (HARQ-ACK), ACK/NACK, etc.
  • UCI Uplink Control Information including at least one of SR
  • a random access preamble for establishing a connection with a cell may be transmitted by PRACH.
  • downlinks, uplinks, etc. may be expressed without adding "link”.
  • various channels may be expressed without adding "Physical” at the beginning.
  • a synchronization signal (SS), a downlink reference signal (DL-RS), and the like may be transmitted.
  • the DL-RS includes a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), and a demodulation reference signal (DeModulation).
  • Reference Signal (DMRS)), Positioning Reference Signal (PRS), Phase Tracking Reference Signal (PTRS), etc. may be transmitted.
  • the synchronization signal may be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).
  • a signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be called an SS/PBCH block, SS Block (SSB), etc. Note that SS, SSB, etc. may also be called reference signals.
  • DMRS Downlink Reference Signal
  • UL-RS uplink reference signals
  • SRS Sounding Reference Signal
  • DMRS demodulation reference signals
  • UE-specific reference signal user terminal-specific reference signal
  • FIG. 9 is a diagram illustrating an example of the configuration of a base station according to an embodiment.
  • the base station 10 includes a control section 110, a transmitting/receiving section 120, a transmitting/receiving antenna 130, and a transmission line interface 140. Note that one or more of each of the control unit 110, the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140 may be provided.
  • this example mainly shows functional blocks that are characteristic of the present embodiment, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
  • the control unit 110 controls the entire base station 10.
  • the control unit 110 can be configured from a controller, a control circuit, etc., which will be explained based on common recognition in the technical field related to the present disclosure.
  • the control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), and the like.
  • the control unit 110 may control transmission and reception, measurement, etc. using the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140.
  • the control unit 110 may generate data, control information, a sequence, etc. to be transmitted as a signal, and may transfer the generated data to the transmitting/receiving unit 120.
  • the control unit 110 may perform communication channel call processing (setting, release, etc.), status management of the base station 10, radio resource management, and the like.
  • the transmitting/receiving section 120 may include a baseband section 121, a radio frequency (RF) section 122, and a measuring section 123.
  • the baseband section 121 may include a transmission processing section 1211 and a reception processing section 1212.
  • the transmitter/receiver unit 120 includes a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter/receiver circuit, etc., which are explained based on common understanding in the technical field related to the present disclosure. be able to.
  • the transmitting/receiving section 120 may be configured as an integrated transmitting/receiving section, or may be configured from a transmitting section and a receiving section.
  • the transmitting section may include a transmitting processing section 1211 and an RF section 122.
  • the reception section may include a reception processing section 1212, an RF section 122, and a measurement section 123.
  • the transmitting/receiving antenna 130 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.
  • the transmitter/receiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc.
  • the transmitter/receiver 120 may receive the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmitting/receiving unit 120 may form at least one of a transmitting beam and a receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.
  • digital beamforming e.g., precoding
  • analog beamforming e.g., phase rotation
  • the transmitting/receiving unit 120 (transmission processing unit 1211) performs Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. may be performed to generate a bit string to be transmitted.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • HARQ retransmission control for example, HARQ retransmission control
  • the transmitting/receiving unit 120 performs channel encoding (which may include error correction encoding), modulation, mapping, filter processing, and discrete Fourier transform (DFT) on the bit string to be transmitted.
  • a baseband signal may be output by performing transmission processing such as processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion.
  • IFFT Inverse Fast Fourier Transform
  • the transmitting/receiving unit 120 may perform modulation, filter processing, amplification, etc. on the baseband signal in a radio frequency band, and may transmit the signal in the radio frequency band via the transmitting/receiving antenna 130. .
  • the transmitting/receiving section 120 may perform amplification, filter processing, demodulation into a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 130.
  • the transmitting/receiving unit 120 (reception processing unit 1212) performs analog-to-digital conversion, fast Fourier transform (FFT) processing, and inverse discrete Fourier transform (IDFT) on the acquired baseband signal. )) processing (if necessary), applying reception processing such as filter processing, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing and PDCP layer processing, User data etc. may also be acquired.
  • FFT fast Fourier transform
  • IDFT inverse discrete Fourier transform
  • the transmitting/receiving unit 120 may perform measurements regarding the received signal.
  • the measurement unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, etc. based on the received signal.
  • the measurement unit 123 measures received power (for example, Reference Signal Received Power (RSRP)), reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR) )) , signal strength (for example, Received Signal Strength Indicator (RSSI)), propagation path information (for example, CSI), etc. may be measured.
  • the measurement results may be output to the control unit 110.
  • the transmission path interface 140 transmits and receives signals (backhaul signaling) between devices included in the core network 30, other base stations 10, etc., and transmits and receives user data (user plane data) for the user terminal 20, control plane It is also possible to acquire and transmit data.
  • the transmitting unit and receiving unit of the base station 10 in the present disclosure may be configured by at least one of the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission path interface 140.
  • the transmitting/receiving unit 120 may receive support information indicating that the terminal supports a specific reception function for reducing interference.
  • the control unit 110 may control transmission based on the specific reception function.
  • FIG. 10 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment.
  • the user terminal 20 includes a control section 210, a transmitting/receiving section 220, and a transmitting/receiving antenna 230. Note that one or more of each of the control unit 210, the transmitting/receiving unit 220, and the transmitting/receiving antenna 230 may be provided.
  • this example mainly shows functional blocks that are characteristic of the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
  • the control unit 210 controls the entire user terminal 20.
  • the control unit 210 can be configured from a controller, a control circuit, etc., which will be explained based on common recognition in the technical field related to the present disclosure.
  • the control unit 210 may control signal generation, mapping, etc.
  • the control unit 210 may control transmission and reception using the transmitting/receiving unit 220 and the transmitting/receiving antenna 230, measurement, and the like.
  • the control unit 210 may generate data, control information, sequences, etc. to be transmitted as a signal, and may transfer the generated data to the transmitting/receiving unit 220.
  • the transmitting/receiving section 220 may include a baseband section 221, an RF section 222, and a measuring section 223.
  • the baseband section 221 may include a transmission processing section 2211 and a reception processing section 2212.
  • the transmitting/receiving unit 220 can be configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field related to the present disclosure.
  • the transmitting/receiving section 220 may be configured as an integrated transmitting/receiving section, or may be configured from a transmitting section and a receiving section.
  • the transmitting section may include a transmitting processing section 2211 and an RF section 222.
  • the reception section may include a reception processing section 2212, an RF section 222, and a measurement section 223.
  • the transmitting/receiving antenna 230 can be configured from an antenna, such as an array antenna, as described based on common recognition in the technical field related to the present disclosure.
  • the transmitter/receiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc.
  • the transmitter/receiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmitting/receiving unit 220 may form at least one of a transmitting beam and a receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.
  • digital beamforming e.g., precoding
  • analog beamforming e.g., phase rotation
  • the transmission/reception unit 220 (transmission processing unit 2211) performs PDCP layer processing, RLC layer processing (e.g. RLC retransmission control), MAC layer processing (e.g. , HARQ retransmission control), etc., to generate a bit string to be transmitted.
  • RLC layer processing e.g. RLC retransmission control
  • MAC layer processing e.g. , HARQ retransmission control
  • the transmitting/receiving unit 220 (transmission processing unit 2211) performs channel encoding (which may include error correction encoding), modulation, mapping, filter processing, DFT processing (as necessary), and IFFT processing on the bit string to be transmitted. , precoding, digital-to-analog conversion, etc., and output a baseband signal.
  • DFT processing may be based on the settings of transform precoding.
  • the transmitting/receiving unit 220 transmits the above processing in order to transmit the channel using the DFT-s-OFDM waveform.
  • DFT processing may be performed as the transmission processing, or if not, DFT processing may not be performed as the transmission processing.
  • the transmitting/receiving unit 220 may perform modulation, filter processing, amplification, etc. on the baseband signal in a radio frequency band, and may transmit the signal in the radio frequency band via the transmitting/receiving antenna 230. .
  • the transmitting/receiving section 220 may perform amplification, filter processing, demodulation into a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 230.
  • the transmission/reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filter processing, demapping, demodulation, and decoding (error correction) on the acquired baseband signal. (which may include decoding), MAC layer processing, RLC layer processing, and PDCP layer processing may be applied to obtain user data and the like.
  • the transmitting/receiving unit 220 may perform measurements regarding the received signal.
  • the measurement unit 223 may perform RRM measurement, CSI measurement, etc. based on the received signal.
  • the measurement unit 223 may measure received power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), propagation path information (for example, CSI), and the like.
  • the measurement results may be output to the control unit 210.
  • the transmitting unit and receiving unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmitting/receiving unit 220 and the transmitting/receiving antenna 230.
  • the transmitter/receiver 220 may transmit support information indicating support for a specific reception function for reducing interference in reception.
  • the control unit 210 may control the reception using the specific reception function.
  • the support information may indicate support for the specific reception function using an index or bit position corresponding to the specific reception function.
  • the control unit 210 may determine channel state information (CSI) based on the settings corresponding to the specific reception function and the measurement results.
  • CSI channel state information
  • the control unit 210 may control reception of resource allocation information with a parameter higher than a specific value regarding modulation or encoding.
  • each functional block may be realized using one physically or logically coupled device, or may be realized using two or more physically or logically separated devices directly or indirectly (e.g. , wired, wireless, etc.) and may be realized using a plurality of these devices.
  • the functional block may be realized by combining software with the one device or the plurality of devices.
  • functions include judgment, decision, judgement, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and consideration. , broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (configuration unit) that performs transmission may be called a transmitting unit, a transmitter, or the like. In either case, as described above, the implementation method is not particularly limited.
  • a base station, a user terminal, etc. in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • FIG. 11 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment.
  • the base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc. .
  • the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured not to include some of the devices.
  • processor 1001 may be implemented using one or more chips.
  • Each function in the base station 10 and the user terminal 20 is performed by, for example, loading predetermined software (program) onto hardware such as a processor 1001 and a memory 1002, so that the processor 1001 performs calculations and communicates via the communication device 1004. This is achieved by controlling at least one of reading and writing data in the memory 1002 and storage 1003.
  • predetermined software program
  • the processor 1001 operates an operating system to control the entire computer.
  • the processor 1001 may be configured by a central processing unit (CPU) that includes interfaces with peripheral devices, a control device, an arithmetic unit, registers, and the like.
  • CPU central processing unit
  • the above-mentioned control unit 110 (210), transmitting/receiving unit 120 (220), etc. may be realized by the processor 1001.
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes in accordance with these.
  • programs program codes
  • software modules software modules
  • data etc.
  • the control unit 110 may be realized by a control program stored in the memory 1002 and operated in the processor 1001, and other functional blocks may also be realized in the same way.
  • the memory 1002 is a computer-readable recording medium, and includes at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), and other suitable storage media. It may be composed of one. Memory 1002 may be called a register, cache, main memory, or the like.
  • the memory 1002 can store executable programs (program codes), software modules, and the like to implement a wireless communication method according to an embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM), etc.), a digital versatile disk, removable disk, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium. It may be configured by Storage 1003 may also be called an auxiliary storage device.
  • a computer-readable recording medium such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM), etc.), a digital versatile disk, removable disk, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium. It may be configured by Storage 1003 may also be called an auxiliary storage device.
  • the communication device 1004 is hardware (transmission/reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, network controller, network card, communication module, etc., for example.
  • the communication device 1004 includes, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). It may be configured to include.
  • FDD frequency division duplex
  • TDD time division duplex
  • the transmitter/receiver 120 (220) may be physically or logically separated into a transmitter 120a (220a) and a receiver 120b (220b).
  • the input device 1005 is an input device (eg, keyboard, mouse, microphone, switch, button, sensor, etc.) that accepts input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, a light emitting diode (LED) lamp, etc.) that performs output to the outside. Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using different buses for each device.
  • the base station 10 and user terminal 20 also include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc. It may be configured to include hardware, and a part or all of each functional block may be realized using the hardware. For example, processor 1001 may be implemented using at least one of these hardwares.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • channel, symbol and signal may be interchanged.
  • the signal may be a message.
  • the reference signal may also be abbreviated as RS, and may be called a pilot, pilot signal, etc. depending on the applicable standard.
  • a component carrier CC may be called a cell, a frequency carrier, a carrier frequency, or the like.
  • a radio frame may be composed of one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) constituting a radio frame may be called a subframe.
  • a subframe may be composed of one or more slots in the time domain.
  • a subframe may have a fixed time length (eg, 1 ms) that does not depend on numerology.
  • the numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
  • Numerology includes, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, and radio frame structure. , a specific filtering process performed by the transceiver in the frequency domain, a specific windowing process performed by the transceiver in the time domain, etc.
  • a slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. Furthermore, a slot may be a time unit based on numerology.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a slot may include multiple mini-slots. Each minislot may be made up of one or more symbols in the time domain. Furthermore, a mini-slot may also be called a sub-slot. A minislot may be made up of fewer symbols than a slot.
  • PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (PUSCH) mapping type A.
  • PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals. Other names may be used for the radio frame, subframe, slot, minislot, and symbol. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be read interchangeably.
  • one subframe may be called a TTI
  • a plurality of consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI.
  • at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. It may be.
  • the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.
  • TTI refers to, for example, the minimum time unit for scheduling in wireless communication.
  • a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each user terminal
  • the TTI may be a transmission time unit of a channel-coded data packet (transport block), a code block, a codeword, etc., or may be a processing unit of scheduling, link adaptation, etc. Note that when a TTI is given, the time interval (for example, the number of symbols) to which transport blocks, code blocks, code words, etc. are actually mapped may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the minimum time unit for scheduling.
  • the number of slots (minislot number) that constitutes the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
  • TTI TTI in 3GPP Rel. 8-12
  • normal TTI long TTI
  • normal subframe normal subframe
  • long subframe slot
  • TTI that is shorter than the normal TTI may be referred to as an abbreviated TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.
  • long TTI for example, normal TTI, subframe, etc.
  • short TTI for example, short TTI, etc. It may also be read as a TTI having the above TTI length.
  • a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more continuous subcarriers (subcarriers) in the frequency domain.
  • the number of subcarriers included in an RB may be the same regardless of the numerology, and may be 12, for example.
  • the number of subcarriers included in an RB may be determined based on numerology.
  • an RB may include one or more symbols in the time domain, and may have a length of one slot, one minislot, one subframe, or one TTI.
  • One TTI, one subframe, etc. may each be composed of one or more resource blocks.
  • one or more RBs include a physical resource block (Physical RB (PRB)), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, and an RB. They may also be called pairs.
  • PRB Physical RB
  • SCG sub-carrier group
  • REG resource element group
  • PRB pair an RB. They may also be called pairs.
  • a resource block may be configured by one or more resource elements (REs).
  • REs resource elements
  • 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
  • Bandwidth Part (also called partial bandwidth, etc.) refers to a subset of consecutive common resource blocks (RB) for a certain numerology in a certain carrier.
  • the common RB may be specified by an RB index based on a common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
  • BWP UL BWP
  • BWP for DL DL BWP
  • One or more BWPs may be configured within one carrier for a UE.
  • At least one of the configured BWPs may be active and the UE may not expect to transmit or receive a given signal/channel outside of the active BWP.
  • “cell”, “carrier”, etc. in the present disclosure may be replaced with "BWP”.
  • the structures of the radio frame, subframe, slot, minislot, symbol, etc. described above are merely examples.
  • the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of symbols included in an RB The number of subcarriers, the number of symbols within a TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
  • radio resources may be indicated by a predetermined index.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. which may be referred to throughout the above description, may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may also be represented by a combination of
  • information, signals, etc. may be output from the upper layer to the lower layer and from the lower layer to at least one of the upper layer.
  • Information, signals, etc. may be input and output via multiple network nodes.
  • Input/output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Information, signals, etc. that are input and output can be overwritten, updated, or added. The output information, signals, etc. may be deleted. The input information, signals, etc. may be transmitted to other devices.
  • Notification of information is not limited to the aspects/embodiments described in this disclosure, and may be performed using other methods.
  • the notification of information in this disclosure may be physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof It may be carried out by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof It may be carried out by
  • the physical layer signaling may also be called Layer 1/Layer 2 (L1/L2) control information (L1/L2 control signal), L1 control information (L1 control signal), etc.
  • RRC signaling may be called an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.
  • MAC signaling may be notified using, for example, a MAC Control Element (CE).
  • CE MAC Control Element
  • notification of prescribed information is not limited to explicit notification, but may be made implicitly (for example, by not notifying the prescribed information or by providing other information) (by notification).
  • the determination may be made by a value expressed by 1 bit (0 or 1), or by a boolean value expressed by true or false. , may be performed by numerical comparison (for example, comparison with a predetermined value).
  • Software includes instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, whether referred to as software, firmware, middleware, microcode, hardware description language, or by any other name. , should be broadly construed to mean an application, software application, software package, routine, subroutine, object, executable, thread of execution, procedure, function, etc.
  • software, instructions, information, etc. may be sent and received via a transmission medium.
  • a transmission medium such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wired technology such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.
  • wireless technology such as infrared, microwave, etc.
  • Network may refer to devices (eg, base stations) included in the network.
  • precoding "precoding weight”
  • QCL quadsi-co-location
  • TCI state "Transmission Configuration Indication state
  • space space
  • spatial relation "spatial domain filter”
  • transmission power "phase rotation”
  • antenna port "antenna port group”
  • layer "number of layers”
  • Terms such as “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angle”, “antenna”, “antenna element”, and “panel” are interchangeable.
  • Base Station BS
  • Wireless base station Wireless base station
  • Fixed station NodeB
  • eNB eNodeB
  • gNB gNodeB
  • Access point "Transmission Point (TP)”, “Reception Point (RP)”, “Transmission/Reception Point (TRP)”, “Panel”
  • cell “sector,” “cell group,” “carrier,” “component carrier,” and the like
  • a base station is sometimes referred to by terms such as macrocell, small cell, femtocell, and picocell.
  • a base station can accommodate one or more (eg, three) cells. If a base station accommodates multiple cells, the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is connected to a base station subsystem (e.g., an indoor small base station (Remote Radio Communication services can also be provided by the Head (RRH)).
  • a base station subsystem e.g., an indoor small base station (Remote Radio Communication services can also be provided by the Head (RRH)
  • RRH Remote Radio Communication services
  • the term “cell” or “sector” refers to part or all of the coverage area of a base station and/or base station subsystem that provides communication services in this coverage.
  • a base station transmitting information to a terminal may be interchanged with the base station instructing the terminal to control/operate based on the information.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station is a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal. , handset, user agent, mobile client, client, or some other suitable terminology.
  • At least one of a base station and a mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc.
  • a transmitting device may be called a transmitting device, a receiving device, a wireless communication device, etc.
  • the base station and the mobile station may be a device mounted on a moving object, the moving object itself, or the like.
  • the moving body refers to a movable object, and the moving speed is arbitrary, and naturally includes cases where the moving body is stopped.
  • the mobile objects include, for example, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, carts, rickshaws, and ships (ships and other watercraft). , including, but not limited to, airplanes, rockets, artificial satellites, drones, multicopters, quadcopters, balloons, and items mounted thereon.
  • the mobile object may be a mobile object that autonomously travels based on a travel command.
  • the moving object may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving object (for example, a drone, a self-driving car, etc.), or a robot (manned or unmanned). ).
  • a vehicle for example, a car, an airplane, etc.
  • an unmanned moving object for example, a drone, a self-driving car, etc.
  • a robot manned or unmanned.
  • at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
  • at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • FIG. 12 is a diagram illustrating an example of a vehicle according to an embodiment.
  • the vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (current sensor 50, (including a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service section 59, and a communication module 60. Be prepared.
  • the drive unit 41 is composed of, for example, at least one of an engine, a motor, and a hybrid of an engine and a motor.
  • the steering unit 42 includes at least a steering wheel (also referred to as a steering wheel), and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.
  • the electronic control unit 49 includes a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (for example, an input/output (IO) port) 63. Signals from various sensors 50-58 provided in the vehicle are input to the electronic control unit 49.
  • the electronic control section 49 may be called an electronic control unit (ECU).
  • the signals from the various sensors 50 to 58 include a current signal from the current sensor 50 that senses the current of the motor, a rotation speed signal of the front wheel 46/rear wheel 47 obtained by the rotation speed sensor 51, and a signal obtained by the air pressure sensor 52.
  • air pressure signals of the front wheels 46/rear wheels 47 a vehicle speed signal acquired by the vehicle speed sensor 53, an acceleration signal acquired by the acceleration sensor 54, a depression amount signal of the accelerator pedal 43 acquired by the accelerator pedal sensor 55, and a brake pedal sensor.
  • 56 a shift lever 45 operation signal obtained by the shift lever sensor 57, and an object detection sensor 58 for detecting obstacles, vehicles, pedestrians, etc. There are signals etc.
  • the information service department 59 includes various devices such as car navigation systems, audio systems, speakers, displays, televisions, and radios that provide (output) various information such as driving information, traffic information, and entertainment information, and these devices. It consists of one or more ECUs that control the The information service unit 59 provides various information/services (for example, multimedia information/multimedia services) to the occupants of the vehicle 40 using information acquired from an external device via the communication module 60 or the like.
  • various information/services for example, multimedia information/multimedia services
  • the information service unit 59 may include an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accepts input from the outside, and an output device that performs output to the outside (for example, display, speaker, LED lamp, touch panel, etc.).
  • an input device for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.
  • an output device that performs output to the outside (for example, display, speaker, LED lamp, touch panel, etc.).
  • the driving support system unit 64 includes millimeter wave radar, Light Detection and Ranging (LiDAR), a camera, a positioning locator (for example, Global Navigation Satellite System (GNSS), etc.), and map information (for example, High Definition (HD)). maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., inertial measurement units (IMUs), inertial navigation systems (INS), etc.), artificial intelligence ( Artificial Intelligence (AI) chips, AI processors, and other devices that provide functions to prevent accidents and reduce the driver's driving burden, as well as one or more devices that control these devices. It consists of an ECU. Further, the driving support system section 64 transmits and receives various information via the communication module 60, and realizes a driving support function or an automatic driving function.
  • LiDAR Light Detection and Ranging
  • GNSS Global Navigation Satellite System
  • HD High Definition
  • maps for example, autonomous vehicle (AV) maps, etc.
  • gyro systems e.g.,
  • the communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63.
  • the communication module 60 communicates via the communication port 63 with a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, which are included in the vehicle 40.
  • Data (information) is transmitted and received between the axle 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50-58.
  • the communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with external devices. For example, various information is transmitted and received with an external device via wireless communication.
  • the communication module 60 may be located either inside or outside the electronic control unit 49.
  • the external device may be, for example, the base station 10, user terminal 20, etc. described above.
  • the communication module 60 may be, for example, at least one of the base station 10 and the user terminal 20 described above (it may function as at least one of the base station 10 and the user terminal 20).
  • the communication module 60 receives signals from the various sensors 50 to 58 described above that are input to the electronic control unit 49, information obtained based on the signals, and input from the outside (user) obtained via the information service unit 59. At least one of the information based on the information may be transmitted to an external device via wireless communication.
  • the electronic control unit 49, various sensors 50-58, information service unit 59, etc. may be called an input unit that receives input.
  • the PUSCH transmitted by the communication module 60 may include information based on the above input.
  • the communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device, and displays it on the information service section 59 provided in the vehicle.
  • the information service unit 59 is an output unit that outputs information (for example, outputs information to devices such as a display and a speaker based on the PDSCH (or data/information decoded from the PDSCH) received by the communication module 60). may be called.
  • the communication module 60 also stores various information received from external devices into a memory 62 that can be used by the microprocessor 61. Based on the information stored in the memory 62, the microprocessor 61 controls the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, and left and right rear wheels provided in the vehicle 40. 47, axle 48, various sensors 50-58, etc. may be controlled.
  • the base station in the present disclosure may be replaced by a user terminal.
  • communication between a base station and a user terminal is replaced with communication between multiple user terminals (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • each aspect/embodiment of the present disclosure may be applied.
  • the user terminal 20 may have the functions that the base station 10 described above has.
  • words such as "uplink” and “downlink” may be replaced with words corresponding to inter-terminal communication (for example, "sidelink”).
  • uplink channels, downlink channels, etc. may be replaced with sidelink channels.
  • the user terminal in the present disclosure may be replaced with a base station.
  • the base station 10 may have the functions that the user terminal 20 described above has.
  • the operations performed by the base station may be performed by its upper node in some cases.
  • various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (e.g. It is clear that this can be performed by a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc. (though not limited thereto), or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • Each aspect/embodiment described in this disclosure may be used alone, in combination, or may be switched and used in accordance with execution. Further, the order of the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in this disclosure may be changed as long as there is no contradiction. For example, the methods described in this disclosure use an example order to present elements of the various steps and are not limited to the particular order presented.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • xG x is an integer or decimal number, for example
  • Future Radio Access FAA
  • RAT New-Radio Access Technology
  • NR New Radio
  • NX New Radio Access
  • FX Future Generation Radio Access
  • G Global System for Mobile Communications
  • CDMA2000 Ultra Mobile Broadband
  • UMB Ultra Mobile Broadband
  • IEEE 802 .11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth (registered trademark), and other appropriate wireless communication methods.
  • the present invention may be applied to systems to be used, next-generation systems expanded, modified, created, or defined based on these
  • the phrase “based on” does not mean “based solely on” unless explicitly stated otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”
  • any reference to elements using the designations "first,” “second,” etc. does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not imply that only two elements may be employed or that the first element must precede the second element in any way.
  • determining may encompass a wide variety of actions. For example, “judgment” can mean judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry ( For example, searching in a table, database, or other data structure), ascertaining, etc. may be considered to be “determining.”
  • judgment (decision) includes receiving (e.g., receiving information), transmitting (e.g., sending information), input (input), output (output), access ( may be considered to be “determining”, such as accessing data in memory (eg, accessing data in memory).
  • judgment is considered to mean “judging” resolving, selecting, choosing, establishing, comparing, etc. Good too.
  • judgment (decision) may be considered to be “judgment (decision)” of some action.
  • the "maximum transmit power" described in this disclosure may mean the maximum value of transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the It may also mean rated UE maximum transmit power).
  • connection refers to any connection or coupling, direct or indirect, between two or more elements.
  • the coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connection” may be replaced with "access.”
  • microwave when two elements are connected, they may be connected using one or more electrical wires, cables, printed electrical connections, etc., as well as in the radio frequency domain, microwave can be considered to be “connected” or “coupled” to each other using electromagnetic energy having wavelengths in the light (both visible and invisible) range.
  • a and B are different may mean “A and B are different from each other.” Note that the term may also mean that "A and B are each different from C”. Terms such as “separate” and “coupled” may also be interpreted similarly to “different.”
  • the i-th (i is any integer), not only in the elementary, comparative, and superlative, but also interchangeably (for example, "the highest” can be interpreted as “the i-th highest”). may be read interchangeably).

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"Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8", 3GPP TS 36.300 V8.12.0, April 2010 (2010-04-01)
See also references of EP4510662A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025192267A1 (ja) * 2024-03-13 2025-09-18 キヤノン株式会社 通信装置、通信方法及びプログラム

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EP4510662A1 (en) 2025-02-19

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