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WO2024080040A1 - Terminal, procédé de communication sans fil et station de base - Google Patents

Terminal, procédé de communication sans fil et station de base Download PDF

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Publication number
WO2024080040A1
WO2024080040A1 PCT/JP2023/032391 JP2023032391W WO2024080040A1 WO 2024080040 A1 WO2024080040 A1 WO 2024080040A1 JP 2023032391 W JP2023032391 W JP 2023032391W WO 2024080040 A1 WO2024080040 A1 WO 2024080040A1
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WIPO (PCT)
Prior art keywords
information
precoder
transmission
full power
codebook
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Ceased
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PCT/JP2023/032391
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English (en)
Japanese (ja)
Inventor
祐輝 松村
聡 永田
ジン ワン
ラン チン
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NTT Docomo Inc
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NTT Docomo Inc
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Priority to JP2024551311A priority Critical patent/JPWO2024080040A5/ja
Publication of WO2024080040A1 publication Critical patent/WO2024080040A1/fr
Anticipated expiration legal-status Critical
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    • 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
    • H04B7/0413—MIMO systems
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0417—Feedback systems
    • 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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • 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

Definitions

  • This disclosure relates to terminals, wireless communication methods, and base stations in next-generation mobile communication systems.
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • Non-Patent Document 1 LTE-Advanced (3GPP Rel. 10-14) was specified for the purpose of achieving higher capacity and greater sophistication over LTE (Third Generation Partnership Project (3GPP (registered trademark)) Release (Rel.) 8, 9).
  • LTE 5th generation mobile communication system
  • 5G+ 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • NR New Radio
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • up to four layers of uplink (UL) Multi-Input Multi-Output (MIMO) transmission are supported.
  • MIMO Multi-Input Multi-Output
  • support for UL transmission with a number of layers greater than four is being considered to achieve higher spectral efficiency.
  • maximum 6-rank transmission using 6 antenna ports, maximum 6- or 8-rank transmission using 8 antenna ports, etc. are being considered.
  • one of the objectives of this disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately control UL full power transmission using more than four antenna ports.
  • a terminal has a transmission unit that transmits power amplifier (PA) configuration-related information, and a control unit that determines a precoder that uses more than four antenna ports when a mode that determines a precoder for full power transmission in a manner different from full power modes 0/1/2 is set.
  • PA power amplifier
  • UL full power transmission using more than four antenna ports can be appropriately controlled.
  • FIG. 1 shows an example of a table of precoding matrices W for single-layer (rank-1) transmission using four antenna ports when the transform precoder is disabled in Rel.
  • 16 NR. 2 shows an example of a table of precoding matrices W for two-layer (rank-2) transmission using four antenna ports when the transform precoder is disabled in Rel.
  • 16 NR. 3 is a diagram showing an example of a table of precoding matrices W for 3-layer (rank 3) transmission using 4 antenna ports when the transform precoder is disabled in Rel.
  • 16 NR. 4 is a diagram showing an example of a table of precoding matrices W for 4-layer (rank 4) transmission using 4 antenna ports when the transform precoder is disabled in Rel. 16 NR.
  • FIG. 5 is a diagram showing an example of a UE configuration assumed by UE capabilities 1-3 related to full power transmission.
  • 6A and 6B are diagrams illustrating an example of a TPMI group.
  • 7 is a diagram showing an example of the correspondence between the field values of the precoding information and the number of layers, and the number of layers and the TPMI in Rel. 16 NR.
  • FIG. 8 is a diagram showing an example of an antenna layout for eight antenna ports.
  • FIG. 9 is a diagram illustrating an example of a PA configuration corresponding to the PA configuration related information in the first embodiment.
  • FIG. 10 is a diagram illustrating an example of a PA configuration corresponding to the PA configuration related information in the first embodiment.
  • FIG. 11 is a diagram illustrating an example of a PA configuration corresponding to the PA configuration related information in the first embodiment.
  • 12A to 12E are diagrams showing an example of a precoder capable of full power transmission in full power mode 3 according to the second embodiment.
  • FIG. 13 is a diagram illustrating an example of a precoder capable of full power transmission in full power mode 3 according to the second embodiment.
  • FIG. 14 is a diagram showing an example of precoder determination based on the value of the precoding information field and the correspondence between the number of layers and the TPMI according to the third embodiment.
  • 15A and 15B are diagrams illustrating an example of precoder determination based on the corresponding relationship of values of the precoding information field according to the third embodiment.
  • FIG. 16 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 17 is a diagram illustrating an example of the configuration of a base station according to an embodiment.
  • FIG. 18 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment.
  • FIG. 19 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment.
  • FIG. 20 is a diagram illustrating an example of a vehicle according to an embodiment.
  • a terminal (user terminal, User Equipment (UE)) may receive information (SRS configuration information, for example, parameters in the RRC control element "SRS-Config") used to transmit a measurement reference signal (for example, a Sounding Reference Signal (SRS)).
  • SRS configuration information for example, parameters in the RRC control element "SRS-Config"
  • SRS-Config parameters in the RRC control element "SRS-Config”
  • the UE may receive at least one of information regarding one or more SRS resource sets (SRS resource set information, e.g., the RRC control element "SRS-ResourceSet”) and information regarding one or more SRS resources (SRS resource information, e.g., the RRC control element "SRS-Resource”).
  • SRS resource set information e.g., the RRC control element "SRS-ResourceSet
  • SRS resource information e.g., the RRC control element "SRS-Resource”
  • An SRS resource set may relate to (group together) a number of SRS resources.
  • Each SRS resource may be identified by an SRS Resource Indicator (SRI) or SRS Resource Identifier (ID).
  • SRI SRS Resource Indicator
  • ID SRS Resource Identifier
  • the SRS resource set information may include an SRS resource set ID (SRS-ResourceSetId), a list of SRS resource IDs (SRS-ResourceId) used in the resource set, an SRS resource type, and information on SRS usage.
  • SRS-ResourceSetId SRS resource set ID
  • SRS-ResourceId SRS resource set ID
  • SRS resource type SRS resource type
  • the SRS resource type may indicate any of periodic SRS (P-SRS), semi-persistent SRS (SP-SRS), and aperiodic CSI (A-SRS).
  • P-SRS periodic SRS
  • SP-SRS semi-persistent SRS
  • A-SRS aperiodic CSI
  • the UE may transmit P-SRS and SP-SRS periodically (or periodically after activation) and transmit A-SRS based on an SRS request in the DCI.
  • the usage may be, for example, beam management (beamManagement), codebook (CB), noncodebook (NCB), antenna switching, etc.
  • the SRS for codebook or noncodebook usage may be used to determine a precoder for codebook-based or noncodebook-based uplink shared channel (Physical Uplink Shared Channel (PUSCH)) transmission based on the SRI.
  • PUSCH Physical Uplink Shared Channel
  • the UE may determine a precoder (precoding matrix) for PUSCH transmission based on the SRI, a Transmitted Rank Indicator (TRI), and a Transmitted Precoding Matrix Indicator (TPMI).
  • a precoder for PUSCH transmission based on the SRI.
  • the SRS resource information may include an SRS resource ID (SRS-ResourceId), SRS port number, SRS port number, transmit comb, SRS resource mapping (e.g., time and/or frequency resource position, resource offset, resource period, number of repetitions, number of SRS symbols, SRS bandwidth, etc.), hopping related information, SRS resource type, sequence ID, spatial relationship information of SRS, etc.
  • SRS resource ID SRS-ResourceId
  • SRS port number SRS port number
  • SRS port number SRS port number
  • transmit comb e.g., transmit comb
  • SRS resource mapping e.g., time and/or frequency resource position, resource offset, resource period, number of repetitions, number of SRS symbols, SRS bandwidth, etc.
  • SRS resource mapping e.g., time and/or frequency resource position, resource offset, resource period, number of repetitions, number of SRS symbols, SRS bandwidth, etc.
  • the spatial relationship information of the SRS may indicate spatial relationship information between a specific reference signal and the SRS.
  • the specific reference signal may be at least one of a Synchronization Signal/Physical Broadcast Channel (SS/PBCH) block, a Channel State Information Reference Signal (CSI-RS), and an SRS (e.g., another SRS).
  • SS/PBCH Synchronization Signal/Physical Broadcast Channel
  • CSI-RS Channel State Information Reference Signal
  • SRS e.g., another SRS.
  • the SS/PBCH block may be referred to as a Synchronization Signal Block (SSB).
  • SSB Synchronization Signal Block
  • the spatial relationship information of the SRS may include at least one of an SSB index, a CSI-RS resource ID, and an SRS resource ID as an index of the above-mentioned specified reference signal.
  • the SSB index, SSB resource ID, and SSB Resource Indicator may be read as interchangeable.
  • the CSI-RS index, CSI-RS resource ID, and CSI-RS Resource Indicator may be read as interchangeable.
  • the SRS index, SRS resource ID, and SRI may be read as interchangeable.
  • the spatial relationship information of the SRS may include a serving cell index, a BWP index (BWP ID), etc., corresponding to the above-mentioned specified reference signal.
  • the UE may transmit the SRS resource using the same spatial domain filter (spatial domain transmit filter) as the spatial domain filter for receiving the SSB or CSI-RS (spatial domain receive filter).
  • the UE may assume that the UE receive beam for the SSB or CSI-RS and the UE transmit beam for the SRS are the same.
  • the UE may transmit the target SRS resource using the same spatial domain filter (spatial domain transmission filter) as the spatial domain filter (spatial domain transmission filter) for transmitting the reference SRS.
  • the UE may assume that the UE transmission beam of the reference SRS and the UE transmission beam of the target SRS are the same.
  • the UE may determine the spatial relationship of the PUSCH scheduled by the DCI (e.g., DCI format 0_1) based on the value of a specific field (e.g., an SRS resource identifier (SRI) field) in the DCI. Specifically, the UE may use spatial relationship information of the SRS resource (e.g., the RRC information element "spatialRelationInfo") determined based on the value of the specific field (e.g., SRI) for PUSCH transmission.
  • a specific field e.g., an SRS resource identifier (SRI) field
  • the UE when using codebook-based transmission for PUSCH, the UE is configured by RRC with a codebook-use SRS resource set having up to two SRS resources, and one of the up to two SRS resources may be indicated by DCI (1-bit SRI field).
  • the transmission beam for PUSCH is specified by the SRI field.
  • the UE may determine the TPMI and number of layers (transmission rank) for the PUSCH based on the precoding information and number of layers field (for simplicity, also called the precoding information field).
  • the UE may select a precoder based on the TPMI, number of layers, etc. from an uplink codebook for the same number of SRS ports as the number of SRS ports indicated by the upper layer parameter "nrofSRS-Ports" set for the SRS resource specified by the SRI field.
  • the UE when non-codebook-based transmission is used for PUSCH, the UE is configured by RRC with a non-codebook-used SRS resource set having up to four SRS resources, and one or more of the up to four SRS resources may be indicated by DCI (2-bit SRI field).
  • the UE may determine the number of layers (transmission rank) for the PUSCH based on the SRI field. For example, the UE may determine that the number of SRS resources specified by the SRI field is the same as the number of layers for the PUSCH. The UE may also calculate a precoder for the SRS resources.
  • the transmission beam of the PUSCH may be calculated based on (the measurement of) the configured associated CSI-RS. Otherwise, the transmission beam of the PUSCH may be specified by the SRI.
  • the UE may be configured to use codebook-based PUSCH transmission or non-codebook-based PUSCH transmission by a higher layer parameter "txConfig" indicating a transmission scheme.
  • the parameter may indicate a value of "codebook” or "nonCodebook.”
  • codebook-based PUSCH (codebook-based PUSCH transmission, codebook-based transmission) may refer to PUSCH when "codebook" is configured as the transmission scheme in the UE.
  • non-codebook-based PUSCH (non-codebook-based PUSCH transmission, non-codebook-based transmission) may refer to PUSCH when "non-codebook" is configured as the transmission scheme in the UE.
  • the UE may determine a precoder for PUSCH transmission based on the SRI, TRI, TPMI, etc. in the case of codebook (CB) based transmission.
  • the SRI, TRI, TPMI, etc. may be notified to the UE using Downlink Control Information (DCI).
  • DCI Downlink Control Information
  • the SRI may be specified by the SRS Resource Indicator field (SRI field) of the DCI, or by the parameter "srs-ResourceIndicator" included in the RRC information element "ConfiguredGrantConfig" of the configured grant PUSCH.
  • TRI and TPMI may be specified by the "Precoding information and number of layers" field of the DCI.
  • the UE may report UE capability information regarding the precoder type, and the base station may set the precoder type based on the UE capability information by higher layer signaling.
  • the UE capability information may be information on the precoder type used by the UE in PUSCH transmission (e.g., may be represented by the RRC parameter "pusch-TransCoherence").
  • the UE may determine the precoder to be used for PUSCH transmission based on precoder type information (e.g., the RRC parameter "codebookSubset") included in PUSCH configuration information notified by higher layer signaling (e.g., the "PUSCH-Config" information element of RRC signaling).
  • precoder type information e.g., the RRC parameter "codebookSubset” included in PUSCH configuration information notified by higher layer signaling (e.g., the "PUSCH-Config" information element of RRC signaling).
  • the UE may set a subset of the PMI specified by the TPMI using the codebookSubset.
  • the precoder type may be specified by any one of full coherent, partial coherent, and non-coherent, or a combination of at least two of these (e.g., may be expressed by parameters such as "fullyAndPartialAndNonCoherent” or "partialAndNonCoherent”).
  • the RRC parameter "pusch-TransCoherence” indicating the UE capability may indicate full coherence, partial coherence, or noncoherence.
  • the RRC parameter “codebookSubset” may indicate "fullAndPartialAndNonCoherent,” “partialAndNonCoherent,” or “noncoherent.”
  • Fully coherent may mean that all antenna ports used for transmission are synchronized (may be expressed as being able to align the phase, being able to control the phase for each coherent antenna port, being able to apply a precoder appropriately for each coherent antenna port, etc.).
  • Partially coherent may mean that some of the antenna ports used for transmission are synchronized, but those some ports cannot be synchronized with other ports.
  • Non-coherent may mean that the antenna ports used for transmission cannot be synchronized.
  • a UE that supports a fully coherent precoder type may be assumed to support partially coherent and non-coherent precoder types.
  • a UE that supports a partially coherent precoder type may be assumed to support a non-coherent precoder type.
  • a non-coherent UE, a partially coherent UE, and a fully coherent UE may be interchangeably read as a UE having non-coherent capabilities, a UE having partially coherent capabilities, and a UE having fully coherent capabilities, respectively.
  • non-coherent UE, partially coherent UE, and fully coherent UE may be interchangeably interpreted as UEs for which the codebook subsets "non-coherent,” “partial and non-coherent,” and “fully and partially and non-coherent” are set in a higher layer, respectively.
  • Non-coherent UE, partially coherent UE, and fully coherent UE may be interpreted interchangeably as UEs capable of transmitting using a non-coherent codebook, a partially coherent codebook, and a fully coherent codebook, respectively.
  • precoder type coherency, PUSCH transmission coherence, coherent type, coherence type, codebook type, codebook subset, codebook subset type, etc. may be interpreted as interchangeable.
  • the UE may determine, from multiple precoders (which may also be called precoding matrices, codebooks, etc.) for CB-based transmission, a precoding matrix corresponding to a TPMI index obtained from a DCI (e.g., DCI format 0_1; same below) that schedules an UL transmission.
  • precoders which may also be called precoding matrices, codebooks, etc.
  • Figure 1-4 shows an example of the association between codebook subsets and TPMI indexes.
  • Figure 1 corresponds to a table of precoding matrices W for single-layer (rank 1) transmission using 4 antenna ports in Rel. 16 NR when transform precoding (also called transform precoder) is disabled.
  • Figure 1 shows the corresponding Ws in ascending order of TPMI index from left to right (similar to Figures 2-4).
  • the correspondence (which may be called a table) showing the TPMI index and the corresponding W as shown in Figure 1-4 is also called a codebook.
  • a part of this codebook is also called a codebook subset.
  • the UE is notified of a TPMI between 0 and 27 for single-layer transmission. If the codebook subset is partial and non-coherent, the UE is configured with a TPMI between 0 and 11 for single-layer transmission. If the codebook subset is non-coherent, the UE is configured with a TPMI between 0 and 3 for single-layer transmission.
  • Figures 2-4 correspond to tables of precoding matrices W for 2-4 layer (rank 2-4) transmission using 4 antenna ports in Rel. 16 NR when transform precoding is disabled.
  • the TPMIs that the UE is notified of for layer 2 transmission are 0 to 21 (codebook subsets are full, partial and non-coherent), 0 to 13 (precoder type is partial and non-coherent) or 0 to 5 (precoder type is non-coherent).
  • the TPMI that the UE is notified of for layer 3 transmission is 0 to 6 (codebook subset full, partial and non-coherent), 0 to 2 (precoder type partial and non-coherent) or 0 (precoder type non-coherent).
  • the TPMI that the UE is notified of for layer 4 transmission is 0 to 4 (codebook subset full, partial and non-coherent), 0 to 2 (precoder type partial and non-coherent) or 0 (precoder type non-coherent).
  • a precoding matrix in which only one element per column is non-zero may be called a non-coherent codebook.
  • a precoding matrix in which a certain number of elements per column (greater than one, but not all elements in the column) are non-zero may be called a partially coherent codebook.
  • a precoding matrix in which all elements per column are non-zero may be called a fully coherent codebook.
  • the noncoherent codebook and the partially coherent codebook may be called an antenna selection precoder, an antenna port selection precoder, etc.
  • the noncoherent codebook noncoherent precoder
  • the partially coherent codebook partially coherent precoder
  • an x-port x is an integer greater than 1 selection precoder, an x-port port selection precoder, etc.
  • the fully coherent codebook may be called a non-antenna selection precoder, an all-port precoder, etc.
  • a codebook precoding matrix
  • RRC parameter "codebookSubset” “fullyAndPartialAndNonCoherent”
  • the transmission power of the PUSCH is allocated equally to each antenna port.
  • the transmission power may be smaller (full power transmission may not be possible) than in the case of a single port.
  • UE capability 1 Supports (or has) a PA (full rated PA) capable of outputting the maximum rated power in each Tx chain
  • PA full rated PA
  • UE Capability 2 None of the transmit chains support fully rated PA
  • UE Capability 3 A subset of the transmit chain supports fully rated PA.
  • a UE having at least one of the UE capabilities 1-3 may mean that it supports full power UL transmission.
  • the UE may report capability information indicating that it supports UL full power transmission capability to the network (NW) (e.g., a base station) in addition to the UE capabilities 1-3.
  • the UE may be configured by the network to support full power transmission.
  • Figure 5 is a diagram showing an example of a UE configuration assumed by UE capabilities 1-3 related to full power transmission.
  • Figure 5 shows only the PA and transmit antenna ports (which may be read as transmit antennas) as the UE configuration in a simplified manner. Note that an example is shown in which the number of PAs and transmit antenna ports is four, but this is not limited to this.
  • P indicates the UE maximum output power [dBm]
  • P PA indicates the PA maximum output power [dBm].
  • P may be, for example, 23 dBm for a UE of power class 3, and 26 dBm for a UE of power class 2.
  • P PA ⁇ P is assumed, but the embodiment of the present disclosure may be applied when P PA >P.
  • UE capability 1 is expected to be a high-cost configuration to implement, but allows full-power transmission using any one or more antenna ports. Note that UE capability 1 may also indicate the ability to support mode 0.
  • the UE capability 2 configuration includes only non-fully-rated PAs and is expected to be inexpensive to implement, but because full power transmission is not possible using only one antenna port, it is necessary to control the phase, amplitude, etc. of the signal input to each PA.
  • the UE capability 3 configuration is intermediate between the UE capability 1 configuration and the UE capability 2 configuration. There is a mixture of antenna ports capable of full power transmission (transmit antennas #0 and #2 in this example) and antenna ports that cannot (transmit antennas #1 and #3 in this example).
  • the indexes and the number of antenna ports capable of full power transmission in UE capability 3 are not limited to these.
  • P PA P/2 for non-fully-rated PA, but the value of P PA is not limited to this.
  • a UE that supports UE capability 2 or 3 will be configured to operate in at least one of two modes (modes 1 and 2) for full power transmission.
  • mode 1 may be a mode (e.g., may be referred to as a first full power transmission mode) in which the UE is configured such that one or more SRS resources included in one SRS resource set of usage "codebook" have the same SRS port number.
  • a UE operating in mode 1 may transmit full power using all antenna ports (with a non-antenna selection precoder).
  • UEs operating in Mode 1 may be configured by the network to use a subset of TPMIs that combine ports within one layer to achieve full power transmission.
  • New codebook subsets may be introduced only for rank values that are not available for full power transmission, including precoders for TPMIs that correspond to "fullyAndPartialAndNonCoherent" as defined in Rel. 15 NR.
  • mode 2 may be a mode (e.g., may be called a second full power transmission mode) in which the UE is configured such that one or more SRS resources included in one SRS resource set of usage "codebook" have different SRS port numbers.
  • a UE operating in mode 2 may transmit at full power using some antenna ports rather than all antenna ports.
  • Mode 2 UEs operating in Mode 2 may transmit PUSCH and SRS in the same manner, regardless of whether antenna virtualization is used or not.
  • Mode 2 UEs may be notified of a set of TPMIs to achieve full power transmission to support SRS resources for more than one port.
  • two or three SRS resources may be configured per SRS resource set (maximum two in Rel. 15 NR).
  • mode 1 Compared to mode 2, mode 1 has the advantage that the required SRI field size is smaller (full power transmission is possible with one SRS resource).
  • mode 2 Compared to mode 1, mode 2 has the advantage that it can dynamically switch between single-port transmission and multi-port transmission using DCI. In addition, since full-power transmission is possible on some antenna ports, it is possible to transmit at full power using only antennas with fully-rated PA, or only coherent antennas, for example.
  • Full power mode 0 may also be referred to simply as full power.
  • a UE may report one or more of the following UE capability information indicating support for mode 0 (ul-FullPwrMode-r16), UE capability information indicating support for mode 1 (ul-FullPwrMode1-r16), and UE capability information indicating support for mode 2 (ul-FullPwrMode2-MaxSRS-ResInSet-r16, ul-FullPwrMode2-SRSConfig-diffNumSRSPorts-r16, etc.).
  • the UE will report UE capability information (ul-FullPwrMode2-TPMIGroup-r16, which may be referred to as TPMI group capability information) regarding a TPMI set (which may be referred to as a TPMI group) capable of full power transmission in relation to mode 2.
  • UE capability information ul-FullPwrMode2-TPMIGroup-r16, which may be referred to as TPMI group capability information
  • Figures 6A and 6B are diagrams showing an example of a TPMI group.
  • Figure 6A shows a PA configuration and a precoding matrix (precoder) for each rank corresponding to the TPMI group when the number of transmit antenna ports is 4. If there are multiple precoders capable of full power transmission for the same rank, full power transmission is possible for any of the multiple precoders for that rank.
  • the number of columns in each matrix may represent the number of layers.
  • Figure 6B shows an example of TPMI groups assumed for a UE with four transmit antenna ports.
  • a non-coherent UE with four transmit antenna ports may correspond to any of G0-G3.
  • a partially coherent UE with four transmit antenna ports may correspond to any of G0-G6.
  • the UE may determine the mode to be used for PUSCH transmission based on higher layer signaling (e.g., RRC signaling), physical layer signaling (e.g., DCI), or a combination of these.
  • higher layer signaling e.g., RRC signaling
  • physical layer signaling e.g., DCI
  • the UE may set or indicate the mode of PUSCH transmission by UL full power transmission mode information (ul-FullPowerTransmission-r16) in higher layer parameters (e.g., PUSCH configuration information (PUSCH-Config information element)).
  • the UE may perform PUSCH full power transmission according to mode 0. If the UL full power transmission mode information set in the UE indicates fullpowerMode1, the UE may perform PUSCH full power transmission according to mode 1. If the UL full power transmission mode information set in the UE is fullpowerMode2, the UE may perform PUSCH full power transmission according to mode 2.
  • the UE may scale (e.g., multiply or divide) the linear value of the PUSCH transmission power determined based on the path loss, Transmit Power Control (TPC) commands, etc., by a certain coefficient s. This coefficient may be called a power scaling coefficient.
  • the UE may scale the linear value of the PUSCH transmission power using the factor s and divide the scaled value evenly across the non-zero PUSCH antenna ports.
  • the UE may apply the determined (or assumed) factor s to the precoding matrix to transmit the PUSCH at full power.
  • a non-zero PUSCH antenna port may refer to an antenna port that has a non-zero PUSCH transmission power, or may refer to an antenna port whose value is not zero (e.g., 1, j) among the antenna ports whose transmission is indicated by the precoding matrix (codebook subset).
  • a mode 1 UE is specified by DCI to perform 4-port 1-layer transmission as shown in Figure 4.
  • the mode 1 UE may be specified with a TPMI index of 13, in which case it can perform full power transmission
  • the mode 1 UE is a partially coherent UE, it may be specified with a TPMI index of 12-15, in which case it can perform full power transmission.
  • TPMI which may also be called a full power TPMI
  • the number of SRS ports is the number of SRS ports associated with the SRS resource if only one SRS resource is configured in the SRS resource set of the codebook, and may correspond to the number of SRS ports of the SRS resource indicated by the SRI if more than one SRS resource is configured in the SRS resource set of the codebook.
  • the partially coherent mode 2 UE that reported G4 in Figure 6B performs 4-port 1-layer transmission in Figure 4
  • non-full power transmission can be performed for TPMI indexes 8-11 (similar to Rel. 15).
  • a mode 0 UE is specified by DCI to perform 4-port 1-layer transmission as shown in Figure 4.
  • 1/ ⁇ (number of non-zero PUSCH antenna ports of W) (1 for a noncoherent precoder and 1/ ⁇ 2 for a partially coherent precoder) is applied as the corresponding amplitude value of W (coefficient part of W (1/2)).
  • the above s 1 is applied.
  • the UE may determine the TPMI and number of layers (transmission rank) for a PUSCH based on the precoding information field of a DCI (e.g., DCI format 0_1/0_2) that schedules the PUSCH.
  • a DCI e.g., DCI format 0_1/0_2
  • the number of bits in the precoding information field may be determined (or may vary) based on the setting of whether to enable or disable the transform precoder for PUSCH (e.g., upper layer parameter transformPrecoder), the setting of the codebook subset for PUSCH (e.g., upper layer parameter codebookSubset), the setting of the maximum number of layers for PUSCH (e.g., upper layer parameter maxRank), the setting of uplink full power transmission for PUSCH (e.g., upper layer parameter ul-FullPowerTransmission), the number of antenna ports for PUSCH, etc.
  • the transform precoder for PUSCH e.g., upper layer parameter transformPrecoder
  • the setting of the codebook subset for PUSCH e.g., upper layer parameter codebookSubset
  • the maximum number of layers for PUSCH e.g., upper layer parameter maxRank
  • the setting of uplink full power transmission for PUSCH e.g., upper layer parameter ul-FullPowerTransmission
  • Figure 7 is a diagram showing an example of the correspondence between the field values of the precoding information and the number of layers, and the number of layers and TPMI in Rel. 16 NR.
  • the correspondence in this example is for four antenna ports when the transform precoder is disabled, the maximum rank (maxRank) is set to 2, 3 or 4, and uplink full power transmission is not set or is set to full power mode 2 (fullpowerMode2) or is set to full power (fullpower), but is not limited to this.
  • fullRank full rank
  • fullpowerMode2 full power mode 2
  • fullpower full power
  • the precoding information field is 6 bits when a fully coherent (fullyAndPartialAndNonCoherent) codebook subset is configured in the UE, 5 bits when a partially coherent (partialAndNonCoherent) codebook subset is configured, and 4 bits when a noncoherent (nonCoherent) codebook subset is configured.
  • the number of layers and TPMI corresponding to a certain precoding information field value may be the same (common) regardless of the codebook subset configured in the UE.
  • the precoding information field may be 0 bits for a non-codebook-based PUSCH. Also, the precoding information field may be 0 bits for a codebook-based PUSCH with one antenna port.
  • Figure 8 is a diagram showing an example of an antenna layout with 8 antenna ports.
  • Ng is the number of antenna groups.
  • M is the number of antennas (or antenna elements) in the first dimension, and N is the number of antennas (or antenna elements) in the second dimension.
  • the first and second dimensions are, for example, the horizontal and vertical directions.
  • An antenna group may be referred to as a coherent group.
  • a coherent group may include one or more coherent ports.
  • a partially coherent UE may have multiple coherent groups.
  • Antenna ports within a coherent group may be coherent.
  • Antenna ports between different coherent groups may not be coherent.
  • Each coherent group may correspond to a different transmit panel/transmit chain/SRS resource set/RS resource set/spatial relation info/joint Transmission Configuration Indication state/UL TCI state/received TRP.
  • the SRS resource set may specifically correspond to an SRS resource set for codebook or non-codebook use.
  • each coherent group may correspond to a different received TRP.
  • the coherent groups may be called coherent antenna groups, port groups, antenna sets, etc.
  • the UE may report the supported antenna groups/antenna configuration information/coherent number as UE capability information.
  • the UE may also configure the coherent groups (e.g., the number of coherent groups, the number of ports included in each coherent group) by higher layer signaling.
  • the antenna layout is not limited to the example shown in Figure 8.
  • the number of panels on which the antennas are arranged, the orientation of the panels, the coherency of each panel/antenna (fully coherent, partially coherent, non-coherent, etc.), the antenna arrangement in a particular direction (horizontal, vertical, etc.), and the polarized antenna configuration (single polarization, cross polarization, number of polarization planes, etc.) may differ from this example.
  • dG-H and dG-V represent the horizontal and vertical spacing between the centers of adjacent antenna groups, respectively.
  • Rel. 15/16 NR supported the transmission of one codeword (CW) in one PUSCH
  • Rel. 18 NR it is being considered that a UE will transmit more than one CW in one PUSCH. For example, support for 2CW transmission for ranks 5-8, and support for 2CW transmission for ranks 2-8 are being considered.
  • simultaneous UL transmission e.g., PUSCH transmission
  • simultaneous PUSCH transmission of multiple beams/panels may correspond to PUSCH transmission with a number of layers greater than four, or may correspond to PUSCH transmission with a number of layers less than four.
  • precoding matrices for UL transmissions using more than four antenna ports are being considered.
  • a codebook for eight-port transmissions (which may be called an 8 TX UL codebook, etc.) is being considered.
  • the inventors have therefore come up with a method for appropriately performing UL full power transmission using more than four antenna ports. According to one aspect of the present disclosure, flexible control of full power transmission is possible.
  • A/B and “at least one of A and B” may be interpreted as interchangeable. Also, in this disclosure, “A/B/C” may mean “at least one of A, B, and C.”
  • Radio Resource Control RRC
  • RRC parameters RRC parameters
  • RRC messages higher layer parameters, fields, information elements (IEs), settings, etc.
  • IEs information elements
  • CE Medium Access Control
  • update commands activation/deactivation commands, etc.
  • higher layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or any combination thereof.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • the MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc.
  • the broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.
  • MIB Master Information Block
  • SIB System Information Block
  • RMSI Remaining Minimum System Information
  • OSI 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
  • index identifier
  • indicator indicator
  • resource ID etc.
  • sequence list, set, group, cluster, subset, etc.
  • TRP
  • the spatial relationship information identifier (ID) (TCI state ID) and the spatial relationship information (TCI state) may be read as interchangeable.
  • ID spatial relationship information
  • TCI state and TCI may be read as interchangeable.
  • the number of layers for PUSCH transmission in the following embodiments may be greater than 4 or less than 4.
  • PUSCH transmission of two CWs in this disclosure may be performed with a number of layers of 4 or less (e.g., 2).
  • the maximum number of layers is not limited to 4 or more, and may be less than 4.
  • the PUSCH transmission in the following embodiments may or may not assume the use of multiple panels (it may be applied regardless of the panels).
  • mode 0, 1, and 2 UEs refer to UEs in which UL full power transmission mode information indicating fullpower, fullpowerMode1, and fullpowerMode2 is set, respectively, but is not limited to this.
  • fullpower, fullpowerMode1, and fullpowerMode2 may be named differently (e.g., fullpower-r17, fullpowerMode1-r17, and fullpowerMode2-r17).
  • UL full power transmission mode information may be a different parameter (e.g., ul-FullPowerTransmission-r17) instead of ul-FullPowerTransmission-r16.
  • the UE performing full power transmission is assumed to be a partially coherent/non-coherent UE, but may also be a UE configured with a different coherent type.
  • TPMI and TPMI index may be interchangeable.
  • Port and antenna port may be interchangeable.
  • 8TX (8 transmissions) may mean 8 ports and 8 antenna ports.
  • Port/antenna port may mean a port/antenna port for UL (e.g., SRS/PUSCH) transmission.
  • SRS resource set and resource set may be interchangeable.
  • Coherent group and SRS resource set may be interchangeable.
  • 8TX This disclosure mainly describes 8TX, but the same applies to 5TX, 6TX, 7TX, 8 or more TX, 4 or less TX, etc. in the same way as for 8TX.
  • “8” may be read as “n (n is any integer)", and in this case, the number of layers/ports, etc. described assuming the maximum value of “8” can be appropriately read as assuming the maximum value of "n” by a person skilled in the art.
  • the number "8" in the following embodiments may be interpreted as any number greater than 4 (e.g., 6, 10, 12, 16, ...), or any number less than or equal to 4 (e.g., 1, 2, 3, 4).
  • the rank, transmission rank, number of layers, and number of antenna ports may be interchangeable.
  • the application of one codeword and the number of layers being four or less may be interchangeable.
  • the application of two codewords and the number of layers being greater than four may be interchangeable.
  • a table may be read interchangeably as one or more tables.
  • the DCI in the following embodiments may refer to a DCI that schedules at least one of PUSCH and PDSCH (e.g., DCI format 0_x, 1_x (where x is an integer)).
  • the following embodiments are based on codebook-based transmission (PUSCH), but are not limited to this and may also be applied to non-codebook-based transmission (PUSCH).
  • the first embodiment relates to capability information related to the PA configuration (PA architecture).
  • the UE may report information related to the PA configuration for each UE/antenna group/panel (hereinafter also referred to as PA configuration related information).
  • the PA configuration related information does not have to correspond to TPMI group capability information.
  • the PA configuration related information may include information regarding at least one of the following: For each UE/antenna group/panel, whether the UE has fully rated PA for all antenna ports or not; For each UE/antenna group/panel, whether the UE does not have a fully rated PA for any antenna port; For each UE/antenna group/panel, whether the UE has (some) fully rated PA for some antenna ports; Number of antenna ports with (or associated with) fully rated PA per UE/antenna group/panel; Number of antenna ports with (or associated with) non-fully-rated PA per UE/antenna group/panel; Index of antenna ports that have (or are associated with) fully rated PA per UE/antenna group/panel; Index of antenna ports having (or associated with) non-fully-rated PA per UE/antenna group/panel; For antenna ports with non-fully rated PA, the power level of the port.
  • the information on the power level of the port may indicate a difference from a specific power value (e.g., maximum power, UE maximum output power, PA maximum output power of one or more PAs, etc.).
  • the difference may be expressed in absolute value, relative value, or degree.
  • the power level information may indicate at least one of whether the power of the port is 3 dB lower, 6 dB lower, or X dB (X is a real number) or more lower than the maximum power.
  • the power level information may also indicate an association between a power level indication and a port index.
  • the information regarding the value of X, the association between the power level instruction and the port index, etc. may be specified in advance in a standard, may be determined based on the UE capabilities, or may be notified by the base station.
  • PA configuration related information may be reported by any coherent type UE or may be reported only by UEs of a specific coherent type.
  • the specific coherent type may be, for example, a partial/non-coherent UE.
  • an 8TX UE may only support a specific PA configuration.
  • the UE may report the supported PA configuration related information as UE capabilities.
  • the above-mentioned PA configuration related information may be determined/restricted based on the reported supported PA configuration.
  • FIG. 9 is a diagram showing an example of a PA configuration corresponding to the PA configuration related information in the first embodiment.
  • This example shows the PA configuration of a UE that indicates, as the PA configuration related information, that it has a fully rated PA for all antenna ports.
  • the maximum output power of the fully rated PA is 23 dBm, which is the maximum UE power of a power class 3 UE, but this is not limited to this.
  • each of the eight antenna ports has a fully rated PA, and full power transmission is possible at each.
  • FIG. 10 is a diagram showing an example of a PA configuration corresponding to PA configuration related information in the first embodiment.
  • This example shows the PA configuration of a UE, which indicates, as PA configuration related information, that ports with indexes 0, 1, 4, and 5 have fully-rated PAs, and ports with indexes 2, 3, 6, and 7 have non-fully-rated PAs (here, PAs with output power 3 dB lower than the maximum power).
  • the sets of indexes ⁇ 0, 1 ⁇ , ⁇ 2, 3 ⁇ , ⁇ 4, 5 ⁇ , and ⁇ 6, 7 ⁇ may each constitute an antenna group.
  • FIG. 11 is a diagram showing an example of a PA configuration corresponding to PA configuration related information in the first embodiment.
  • This example shows the PA configuration of a UE, which indicates, as PA configuration related information, that for antenna group #0, ports with indexes 0 and 1 have fully rated PAs and ports with indexes 4 and 5 have non-fully rated PAs (here, PAs with output power 3 dB lower than the maximum power), and that for antenna group #1, ports with indexes 2 and 3 have fully rated PAs and ports with indexes 6 and 7 have non-fully rated PAs (here, PAs with output power 6 dB lower than the maximum power).
  • the UE may report the (smallest) set of antenna port indexes that can achieve full power as the PA configuration related information. For example, for the PA configuration in FIG. 10, the UE may report a total of six index sets, ⁇ 0 ⁇ , ⁇ 1 ⁇ , ⁇ 4 ⁇ , ⁇ 5 ⁇ , ⁇ 2, 3 ⁇ , and ⁇ 6, 7 ⁇ , as the PA configuration related information.
  • the NW that receives the PA configuration related information can understand that the UE can achieve full power transmission for the above six sets, and can also achieve full power transmission for any combination of the above six sets of indexes (e.g., ⁇ 0, 1 ⁇ , ⁇ 0, 2, 3 ⁇ , etc.).
  • Second Embodiment A second embodiment relates to a new full power mode for 8TX UEs, which may for example be called fullpowerMode3.
  • the UE may be configured with full power mode 3.
  • the UE may be notified by the network of information on precoders (or additional precoders) capable of full power transmission for each rank. This information may be called precoder information for full power transmission.
  • the NW may determine the precoder information for full power transmission based on the PA configuration related information of the first embodiment.
  • the precoder information for full power transmission may include antenna port indices available for the precoder.
  • the antenna port indices may be a combination of indices or may be indices for each column/layer of the precoding matrix.
  • the antenna port indices may be notified for each UE/antenna group/panel.
  • the value of the element in the precoder corresponding to the available antenna port index may be a specific value (e.g., 1) or may be set by higher layer signaling for each UE/antenna group/panel.
  • the specific value may be different for each UE/antenna group/panel.
  • the precoder amplitude or power scaling factor (s) may be fixed to 1 or may be a predefined/predefined value set by higher layer signaling.
  • the precoder amplitude may be 1/ ⁇ (number of non-zero PUSCH antenna ports in W).
  • FIGS. 12A-12E are diagrams showing an example of a precoder capable of full power transmission in full power mode 3 in the second embodiment.
  • the UE may determine a precoder based on a port index specified by the NW and perform the above transmission based on the precoder.
  • Figure 12B shows the above precoder, a 1-port selection precoder or a 2-port selection precoder, when the NW indicates port index ⁇ 0 ⁇ (left side of the figure) or ⁇ 0, 1 ⁇ (right side of the figure) for rank 1.
  • FIG. 12C shows the above precoder when the NW indicates port indexes ⁇ 0,1 ⁇ in the first column and port indexes ⁇ 2,3 ⁇ in the second column for rank 2.
  • the ascending order of the precoder row indexes does not have to correspond one-to-one to the ascending order of the port indexes.
  • the precoder row indexes 0-7 are associated with antenna port indexes 0, 1, 4, 5, 2, 3, 6, and 7, respectively.
  • Information regarding the association between the precoder row indexes and the port indexes may be specified in advance in a standard, may be determined based on UE capabilities, or may be notified from the base station. If there is no particular notification, the ascending order of the precoder row indexes may correspond one-to-one to the ascending order of the port indexes.
  • FIG. 12D shows the above precoder when the NW indicates port indices ⁇ 0, 1, 2, 3 ⁇ for rank 2.
  • the port index may be applied commonly to each column of the precoder.
  • the port index may be applied commonly to multiple ranks (in other words, the precoders for multiple ranks may all be determined based on a common port index that is indicated).
  • FIG. 12E shows the above precoder when the NW indicates port index ⁇ 0 ⁇ in the first column, port index ⁇ 1 ⁇ in the second column, port index ⁇ 4, 5 ⁇ in the third column, port index ⁇ 2 ⁇ in the fourth column, port index ⁇ 3 ⁇ in the fifth column, and port index ⁇ 6, 7 ⁇ in the sixth column for rank 6.
  • the port indexes corresponding to the precoder in this example may be notified to a UE that has reported, for example, as the PA configuration related information of the first embodiment, that ports with indexes 0, 1, 2, and 3 have fully rated PAs and ports with indexes 4, 5, 6, and 7 have non-fully rated PAs (here, PAs with output power 3 dB lower than maximum power).
  • the precoder information for full power transmission may indicate information (e.g., an instruction for phase matching) regarding co-phasing between different antenna groups for forming a precoder.
  • information e.g., an instruction for phase matching
  • phase matching, phase compensation, phase adjustment, phase difference, phase relationship, etc. may be interpreted as interchangeable.
  • the UE may treat a precoder corresponding to an existing TPMI table that satisfies the combination per column/per layer (in other words, has a non-zero value for the port index) as a precoder for full power transmission.
  • the UE may or may not recalculate the amplitude of the precoder. The determination of the amplitude may be the same as in the case of the TPMI index for the precoder information for full power transmission described below.
  • the precoder information for full power transmission may include a TPMI index in the TPMI table.
  • the UE may or may not recalculate the amplitude of the precoder corresponding to the specified TPMI index (it may use it without change). The recalculation may be calculated as 1/ ⁇ (number of non-zero PUSCH antenna ports in precoder W).
  • whether or not to recalculate the precoder amplitude may be set in the UE by higher layer signaling, or may be determined based on the UE capabilities.
  • FIG. 13 is a diagram showing an example of a precoder capable of full power transmission in full power mode 3 in the second embodiment.
  • full power mode 3 may correspond to a mode in which a precoder for full power transmission is controlled based on the PA configuration related information of the first embodiment.
  • Full power mode 3 may correspond to a mode in which a precoder for full power transmission is determined not based on the TPMI index.
  • Full power mode 3 may correspond to a mode in which a precoder for full power transmission is determined in a manner different from full power modes 0/1/2 (although based on the TPMI index).
  • the NW can flexibly configure the precoder in the UE to enable full power transmission.
  • the third embodiment relates to the content specified by the precoding information field.
  • the UE in full power mode 3, in order to specify a precoder corresponding to an existing TPMI table based on a notified port index or TPMI index, the UE may specify the number of layers and the TPMI index for each rank based on the correspondence of the existing precoding information field (e.g., a table showing the correspondence between the value of the precoding information field and the number of layers and the TPMI).
  • existing precoding information field e.g., a table showing the correspondence between the value of the precoding information field and the number of layers and the TPMI.
  • the UE identifies the number of layers and the TPMI index based on the precoding information field notified by the DCI and the above-mentioned existing correspondence relationship, and if the TPMI index corresponds to the TPMI index indicated by the precoder information for full power transmission in the above-mentioned second embodiment, full power transmission may be performed using the precoder corresponding to the TPMI index to which the recalculation shown in the second embodiment has been applied.
  • bit size of the TPMI/RI indication (or precoding information field) for full power mode 3 may be the same as when full power mode is not set.
  • a UE in which full power mode 3 is configured but the precoder information for full power transmission does not indicate a TPMI index may perform full power transmission by applying the recalculation shown in the second embodiment to a precoder corresponding to an arbitrary TPMI index.
  • FIG. 14 is a diagram showing an example of precoder determination based on the correspondence between the value of the precoding information field and the number of layers and TPMI for the third embodiment.
  • the illustrated table is an example of the above correspondence for a maximum rank of 6.
  • a value of 26 in the precoding information field indicates a number of layers of 6 (which may be a set of 3+3 number of layers.
  • the correspondence in FIG. 14 may be used when an existing value (e.g., partialAndNonCoherent) is set as the codebook subset, or when a value indicating a new codebook subset is set. The same may be true in embodiment 3.2 described below.
  • an existing value e.g., partialAndNonCoherent
  • the new codebook subset may include at least one of a codebook subset for only a fully coherent precoder and a codebook subset for only a partially coherent precoder.
  • the new codebook subset may include a codebook subset for only a non-coherent precoder.
  • the new codebook subset may mean a codebook subset for single coherency (or single coherence).
  • a fully coherent UE may be configured with configuration information indicating a codebook subset for a fully coherent precoder only (e.g., an RRC parameter "codebookSubset” indicating "fully coherent” or "fully coherent only”).
  • configuration information indicating a codebook subset for a fully coherent precoder only (e.g., an RRC parameter "codebookSubset” indicating "fully coherent” or "fully coherent only”).
  • a partially coherent UE may be configured with configuration information indicating a codebook subset for only a partially coherent precoder (e.g., an RRC parameter "codebookSubset” indicating "partialCoherent” or “partialCoherentOnly”).
  • configuration information indicating a codebook subset for only a partially coherent precoder (e.g., an RRC parameter "codebookSubset” indicating "partialCoherent” or "partialCoherentOnly”).
  • the UE may specify a precoder for full power transmission for each rank based on a value of a precoding information field that is not used in the correspondence relationship of the existing precoding information field (e.g., a value corresponding to "Reserved" or a larger value not specified in the existing correspondence relationship). That is, the value of the precoding information field may indicate not only a set of the number of layers and the TPMI index, but also a precoder (and the number of layers) corresponding to the precoder information for full power transmission notified from the NW for any layer.
  • a precoding information field e.g., a value corresponding to "Reserved" or a larger value not specified in the existing correspondence relationship. That is, the value of the precoding information field may indicate not only a set of the number of layers and the TPMI index, but also a precoder (and the number of layers) corresponding to the precoder information for full power transmission notified from the NW for any layer.
  • the UE may assume that the value of the precoding information field corresponding to the precoder for full power transmission is not inserted in the original table, but is placed at the end of the original table based on the layer order and the precoder/antenna port order based on the configuration from the NW.
  • FIGS. 15A and 15B are diagrams showing an example of precoder determination based on the correspondence between values of the precoding information field for the third embodiment.
  • the correspondence shown in FIG. 14 can be used as the existing correspondence for the maximum rank 6.
  • a UE in which full power mode 3 is set and precoder information for full power transmission is set may interpret the precoding information field of the DCI based on the correspondence relationship in FIG. 15A or 15B, rather than the correspondence relationship in FIG. 14.
  • FIG. 15A corresponds to the case in which the NW has not set precoder information for full power transmission for ranks 5/6 (only precoder information for full power transmission for ranks 1-4 has been set)
  • FIG. 15B corresponds to the case in which the NW has only set precoder information for full power transmission for ranks 1-6.
  • the DCI size may relate to the precoders configured by the precoder information for full power transmission of each layer for different correspondences to different maximum ranks.
  • restrictions on the correspondences may be applied.
  • the UE may not expect more than Z1 additional precoders for full power transmission per rank to be configured, or more than Z2 precoders for full power transmission for all ranks to be configured.
  • Z1/Z2/M may be predefined, may be determined based on UE capabilities, or may be set in the UE by higher layer signaling.
  • the UE can appropriately identify the precoder for full power transmission based on the precoding information field.
  • the fourth embodiment relates to SRS resource configuration for a non-codebook-based PUSCH when full power mode 3 is configured.
  • the content/number of SRS resources configured for non-codebook-based PUSCH when full power mode 3 is configured may be configured in the same way as when full power mode 3 is not configured.
  • up to two SRS resources may be configured in one SRS resource set related to the use of "nonCodeBook", and the number of SRS ports (nrofSRS-Port) of these SRS resources may be set to the same value.
  • the content/number of SRS resource settings for non-codebook-based PUSCH when full power mode 3 is set may be different from when full power mode 3 is not set.
  • up to X SRS resources may be configured in one SRS resource set related to the "nonCodeBook" usage.
  • different spatial relationships/TCI states may be configured for SRS resources in one SRS resource set associated with a "nonCodeBook" application.
  • the same number of SRS ports may be set for all SRS resources in one SRS resource set related to the "nonCodeBook" use, or different numbers of SRS ports may be set for multiple SRS resources.
  • Whether the number of ports of the SRS resources in the X/Y/SRS resource set is the same or different may be predefined, may be determined based on the UE capabilities, or may be configured in the UE by higher layer signaling.
  • the above embodiment 4.1 may be applied to the SRS resource configuration for the non-codebook-based PUSCH when full power mode 0/1 is set. Also, the above embodiment 4.2 may be applied to the SRS resource configuration for the non-codebook-based PUSCH when full power mode 2 is set.
  • the UE can appropriately determine the SRS resource configuration for the non-codebook-based PUSCH when full power mode 3 is configured.
  • a UE/base station using (referring to/performing processing based on) a table does not necessarily mean using the table itself, but may also mean using an array, list, function, etc. that includes information that conforms to the table.
  • any information may be notified to the UE (from a network (NW) (e.g., a base station (BS))) (in other words, any information is received from the BS by the UE) using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), a specific signal/channel (e.g., PDCCH, PDSCH, reference signal), or a combination thereof.
  • NW network
  • BS base station
  • any information is received from the BS by the UE
  • physical layer signaling e.g., DCI
  • higher layer signaling e.g., RRC signaling, MAC CE
  • PDCCH Physical Downlink Control Channel
  • PDSCH reference signal
  • the MAC CE may be identified by including a new Logical Channel ID (LCID) in the MAC subheader that is not specified in existing standards.
  • LCID Logical Channel ID
  • the notification When the notification is made by a DCI, the notification may be made by a specific field of the DCI, a Radio Network Temporary Identifier (RNTI) used to scramble Cyclic Redundancy Check (CRC) bits assigned to the DCI, the format of the DCI, etc.
  • RNTI Radio Network Temporary Identifier
  • CRC Cyclic Redundancy Check
  • notification of any information to the UE in the above-mentioned embodiments may be performed periodically, semi-persistently, or aperiodically.
  • notification of any information from the UE (to the NW) may be performed using physical layer signaling (e.g., UCI), higher layer signaling (e.g., RRC signaling, MAC CE), a specific signal/channel (e.g., PUCCH, PUSCH, PRACH, reference signal), or a combination thereof.
  • physical layer signaling e.g., UCI
  • higher layer signaling e.g., RRC signaling, MAC CE
  • a specific signal/channel e.g., PUCCH, PUSCH, PRACH, reference signal
  • the MAC CE may be identified by including a new LCID in the MAC subheader that is not specified in existing standards.
  • the notification may be transmitted using PUCCH or PUSCH.
  • notification of any information from the UE may be performed periodically, semi-persistently, or aperiodically.
  • At least one of the above-mentioned embodiments may be applied when a specific condition is satisfied, which may be specified in a standard or may be notified to a UE/BS using higher layer signaling/physical layer signaling.
  • At least one of the above-described embodiments may be applied only to UEs that have reported or support a particular UE capability.
  • the specific UE capabilities may indicate at least one of the following: Supporting specific processing/operations/control/information for at least one of the above embodiments; Supporting 8TX UL transmissions; Supported coherent groups, ⁇ PA configuration related information, - Support full power mode 3.
  • the above-mentioned specific UE capabilities may be capabilities that are applied across all frequencies (commonly regardless of frequency), capabilities per frequency (e.g., one or a combination of a cell, band, band combination, BWP, component carrier, etc.), capabilities per frequency range (e.g., Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), capabilities per subcarrier spacing (SubCarrier Spacing (SCS)), or capabilities per Feature Set (FS) or Feature Set Per Component-carrier (FSPC).
  • FR1 Frequency Range 1
  • FR2 FR2, FR3, FR4, FR5, FR2-1, FR2-2
  • SCS subcarrier Spacing
  • FS Feature Set
  • FSPC Feature Set Per Component-carrier
  • the specific UE capabilities may be capabilities that are applied across all duplexing methods (commonly regardless of the duplexing method), or may be capabilities for each duplexing method (e.g., Time Division Duplex (TDD) and Frequency Division Duplex (FDD)).
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the above-mentioned embodiments may be applied when the UE configures/activates/triggers specific information related to the above-mentioned embodiments (or performs the operations of the above-mentioned embodiments) by higher layer signaling/physical layer signaling.
  • the specific information may be information indicating enabling 8TX UL transmission, information indicating enabling full power mode 3, any RRC parameters for a specific release (e.g., Rel. 18/19), etc.
  • the UE may, for example, apply Rel. 15/16 operations.
  • [Appendix 1] A transmitter for transmitting power amplifier (PA) configuration related information; A terminal having a control unit that determines a precoder that uses more than four antenna ports when a mode that determines a precoder for full power transmission in a manner different from full power mode 0/1/2 is set.
  • PA configuration related information is not capability information indicating a Transmitted Precoding Matrix Indicator (TPMI) group.
  • TPMI Transmitted Precoding Matrix Indicator
  • Wired communication system A 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 embodiments of the present disclosure or a combination of these.
  • FIG. 16 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • the wireless communication system 1 (which may simply be referred to as system 1) may be a system that realizes communication using Long Term Evolution (LTE) specified by the Third Generation Partnership Project (3GPP), 5th generation mobile communication system New Radio (5G NR), or the like.
  • LTE Long Term Evolution
  • 3GPP Third Generation Partnership Project
  • 5G NR 5th generation mobile communication system New Radio
  • the wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)).
  • MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), etc.
  • RATs Radio Access Technologies
  • MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), etc.
  • 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 (MN), and the NR base station (gNB) is the secondary node (SN).
  • the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.
  • the wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (e.g., dual connectivity in which both the MN and SN are NR base stations (gNBs) (NR-NR Dual Connectivity (NN-DC))).
  • dual connectivity in which both the MN and SN are NR base stations (gNBs) (NR-NR Dual Connectivity (NN-DC))).
  • gNBs NR base stations
  • N-DC Dual Connectivity
  • the wireless communication system 1 may include a base station 11 that forms a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) that are arranged within the macrocell C1 and form a small cell C2 that is narrower than the macrocell C1.
  • a user terminal 20 may be located within at least one of the cells. The arrangement and number of each cell and user terminal 20 are not limited to the embodiment shown in the figure. Hereinafter, when there is no need to distinguish between the base stations 11 and 12, they will be collectively referred to as base station 10.
  • the user terminal 20 may be connected to at least one of the multiple base stations 10.
  • the user terminal 20 may utilize at least one of carrier aggregation (CA) using multiple 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 for example, FR1 may correspond to a higher frequency band than FR2.
  • 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 multiple base stations 10 may be connected by wire (e.g., optical fiber conforming to the Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (e.g., NR communication).
  • wire e.g., optical fiber conforming to the Common Public Radio Interface (CPRI), X2 interface, etc.
  • NR communication e.g., NR communication
  • base station 11 which corresponds to the upper station
  • IAB Integrated Access Backhaul
  • base station 12 which corresponds to a relay station
  • the base station 10 may be connected to the core network 30 directly or via another base station 10.
  • the core network 30 may include at least one of, for example, an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), etc.
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the core network 30 may include network functions (Network Functions (NF)) such as, for example, a User Plane Function (UPF), an Access and Mobility management Function (AMF), a Session Management Function (SMF), a Unified Data Management (UDM), an Application Function (AF), a Data Network (DN), a Location Management Function (LMF), and Operation, Administration and Maintenance (Management) (OAM).
  • NF Network Functions
  • UPF User Plane Function
  • AMF Access and Mobility management Function
  • SMF Session Management Function
  • UDM Unified Data Management
  • AF Application Function
  • DN Data Network
  • LMF Location Management Function
  • OAM Operation, Administration and Maintenance
  • the user terminal 20 may be a terminal that supports at least one of the communication methods such as LTE, LTE-A, and 5G.
  • a wireless access method based on Orthogonal Frequency Division Multiplexing 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
  • the radio access method may also be called a waveform.
  • other radio access methods e.g., other single-carrier transmission methods, other multi-carrier transmission methods
  • a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20, a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc. may be used as the downlink channel.
  • PDSCH Physical Downlink Shared Channel
  • PBCH Physical Broadcast Channel
  • PDCCH Physical Downlink Control Channel
  • an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20, an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc. may be used as an uplink channel.
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • PRACH Physical Random Access Channel
  • SIB System Information Block
  • PDSCH User data, upper layer control information, System Information Block (SIB), etc.
  • SIB System Information Block
  • PUSCH User data, upper layer control information, etc.
  • MIB Master Information Block
  • PBCH Physical Broadcast Channel
  • Lower layer control information may be transmitted by the PDCCH.
  • the lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information for at least one of the PDSCH and the PUSCH.
  • DCI Downlink Control Information
  • the DCI for scheduling the PDSCH may be called a DL assignment or DL DCI
  • the DCI for scheduling the PUSCH may be called a UL grant or UL DCI.
  • the PDSCH may be interpreted as DL data
  • the PUSCH may be interpreted as UL data.
  • a control resource set (COntrol REsource SET (CORESET)) and a search space may be used to detect the PDCCH.
  • the CORESET corresponds to the resources to search for DCI.
  • the search space corresponds to the search region and search method of PDCCH candidates.
  • One CORESET may be associated with one or multiple search spaces. The UE may monitor the CORESET associated with a search space based on the search space configuration.
  • a 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 the terms “search space,” “search space set,” “search space setting,” “search space set setting,” “CORESET,” “CORESET setting,” etc. in this disclosure may be read as interchangeable.
  • the PUCCH may transmit uplink control information (UCI) including at least one of channel state information (CSI), delivery confirmation information (which may be called, for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK/NACK, etc.), and a scheduling request (SR).
  • UCI uplink control information
  • CSI channel state information
  • HARQ-ACK Hybrid Automatic Repeat reQuest ACKnowledgement
  • ACK/NACK ACK/NACK
  • SR scheduling request
  • the PRACH may transmit a random access preamble for establishing a connection with a cell.
  • downlink, uplink, etc. may be expressed without adding "link.”
  • various channels may be expressed without adding "Physical” to the beginning.
  • a synchronization signal (SS), a downlink reference signal (DL-RS), etc. may be transmitted.
  • a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a 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 an SS (PSS, SSS) and a PBCH (and a DMRS for PBCH) may be called an SS/PBCH block, an SS Block (SSB), etc.
  • the SS, SSB, etc. may also be called a reference signal.
  • a measurement reference signal Sounding Reference Signal (SRS)
  • a demodulation reference signal DMRS
  • UL-RS uplink reference signal
  • DMRS may also be called a user equipment-specific reference signal (UE-specific Reference Signal).
  • the base station 17 is a diagram showing an example of a configuration of a base station according to an embodiment.
  • the base station 10 includes a control unit 110, a transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140.
  • the control unit 110, the transceiver unit 120, the transceiver antenna 130, and the transmission line interface 140 may each be provided in one or more units.
  • this example mainly shows the functional blocks of the characteristic parts of this embodiment, and the base station 10 may also be assumed to have other functional blocks necessary for wireless communication. Some of the processing of each part 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 are described based on a common understanding in the technical field to which this disclosure pertains.
  • the control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc.
  • the control unit 110 may control transmission and reception using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140, measurement, etc.
  • the control unit 110 may generate data, control information, sequences, etc. to be transmitted as signals, and transfer them to the transceiver unit 120.
  • the control unit 110 may perform call processing of communication channels (setting, release, etc.), status management of the base station 10, management of radio resources, etc.
  • the transceiver unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123.
  • the baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212.
  • the transceiver unit 120 may be composed of a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on a common understanding in the technical field to which the present disclosure relates.
  • the transceiver unit 120 may be configured as an integrated transceiver unit, or may be composed of a transmission unit and a reception unit.
  • the transmission unit may be composed of a transmission processing unit 1211 and an RF unit 122.
  • the reception unit may be composed of a reception processing unit 1212, an RF unit 122, and a measurement unit 123.
  • the transmitting/receiving antenna 130 can be configured as an antenna described based on common understanding in the technical field to which this disclosure pertains, such as an array antenna.
  • the transceiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc.
  • the transceiver 120 may receive the above-mentioned uplink channel, uplink reference signal, etc.
  • the transceiver 120 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc.
  • digital beamforming e.g., precoding
  • analog beamforming e.g., phase rotation
  • the transceiver 120 may perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc., on data and control information obtained from the control unit 110, and generate a bit string to be transmitted.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • HARQ retransmission control HARQ retransmission control
  • the transceiver 120 may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.
  • transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.
  • channel coding which may include error correction coding
  • DFT Discrete Fourier Transform
  • IFFT Inverse Fast Fourier Transform
  • the transceiver unit 120 may perform modulation, filtering, amplification, etc., on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 130.
  • the transceiver unit 120 may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 130.
  • the transceiver 120 may apply reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, and acquire user data, etc.
  • reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, and acquire user data, etc.
  • FFT Fast Fourier Transform
  • IDFT Inverse Discrete Fourier Transform
  • the transceiver 120 may perform measurements on the received signal.
  • the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal.
  • the measurement unit 123 may measure received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc.
  • RSRP Reference Signal Received Power
  • RSSI Received Signal Strength Indicator
  • the measurement results may be output to the control unit 110.
  • the transmission path interface 140 may transmit and receive signals (backhaul signaling) between devices included in the core network 30 (e.g., network nodes providing NF), other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.
  • devices included in the core network 30 e.g., network nodes providing NF
  • other base stations 10, etc. may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.
  • the transmitter and receiver of the base station 10 in this disclosure may be configured with at least one of the transmitter/receiver 120, the transmitter/receiver antenna 130, and the transmission path interface 140.
  • the transceiver 120 may receive power amplifier (PA) configuration related information from the user terminal 20.
  • the transceiver 120 may transmit to the user terminal 20 setting information for a mode that determines a precoder for full power transmission in a manner different from full power modes 0/1/2 (e.g., an RRC parameter indicating full power mode 3).
  • PA power amplifier
  • the user terminal 18 is a diagram showing an example of the configuration of a user terminal according to an embodiment.
  • the user terminal 20 includes a control unit 210, a transmitting/receiving unit 220, and a transmitting/receiving antenna 230.
  • the control unit 210, the transmitting/receiving unit 220, and the transmitting/receiving antenna 230 may each include one or more.
  • this example mainly shows the functional blocks of the characteristic parts of this embodiment, and the user terminal 20 may also be assumed to have other functional blocks necessary for wireless communication. Some of the processing of each part 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 are described based on a common understanding in the technical field to which this disclosure pertains.
  • the control unit 210 may control signal generation, mapping, etc.
  • the control unit 210 may control transmission and reception using the transceiver unit 220 and the transceiver antenna 230, measurement, etc.
  • the control unit 210 may generate data, control information, sequences, etc. to be transmitted as signals, and transfer them to the transceiver unit 220.
  • the transceiver unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223.
  • the baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212.
  • the transceiver unit 220 may be composed of a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on a common understanding in the technical field to which the present disclosure relates.
  • the transceiver unit 220 may be configured as an integrated transceiver unit, or may be composed of a transmission unit and a reception unit.
  • the transmission unit may be composed of a transmission processing unit 2211 and an RF unit 222.
  • the reception unit may be composed of a reception processing unit 2212, an RF unit 222, and a measurement unit 223.
  • the transmitting/receiving antenna 230 can be configured as an antenna described based on common understanding in the technical field to which this disclosure pertains, such as an array antenna.
  • the transceiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc.
  • the transceiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, etc.
  • the transceiver 220 may form at least one of the transmit beam and receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc.
  • digital beamforming e.g., precoding
  • analog beamforming e.g., phase rotation
  • the transceiver 220 may perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on the data and control information acquired from the controller 210, and generate a bit string to be transmitted.
  • RLC layer processing e.g., RLC retransmission control
  • MAC layer processing e.g., HARQ retransmission control
  • the transceiver 220 may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.
  • transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.
  • Whether or not to apply DFT processing may be based on the settings of transform precoding.
  • the transceiver unit 220 transmission processing unit 2211
  • the transceiver unit 220 may perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using a DFT-s-OFDM waveform, and when transform precoding is not enabled, it is not necessary to perform DFT processing as the above-mentioned transmission processing.
  • the transceiver unit 220 may perform modulation, filtering, amplification, etc., on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 230.
  • the transceiver unit 220 may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 230.
  • the transceiver 220 may apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to acquire user data, etc.
  • reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to acquire user data, etc.
  • the transceiver 220 may perform measurements on the received signal. For example, the measurement unit 223 may perform RRM measurements, CSI measurements, etc. based on the received signal.
  • the measurement unit 223 may measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc.
  • the measurement results may be output to the control unit 210.
  • the transmitting unit and receiving unit of the user terminal 20 in this disclosure may be configured by at least one of the transmitting/receiving unit 220 and the transmitting/receiving antenna 230.
  • the transceiver unit 220 may transmit information related to the configuration of a power amplifier (PA).
  • the control unit 210 may determine the precoder using more than four antenna ports when a mode is set that determines a precoder for full power transmission in a manner different from the full power mode 0/1/2 (when the full power mode is set).
  • the PA configuration related information does not have to be capability information indicating a Transmitted Precoding Matrix Indicator (TPMI) group (it may be information different from TPMI group capability information).
  • TPMI Transmitted Precoding Matrix Indicator
  • the transceiver unit 220 may receive information indicating antenna port indexes available for the precoder (precoder information for full power transmission).
  • each functional block may be realized using one device that is physically or logically coupled, or may be realized using two or more devices that are physically or logically separated and directly or indirectly connected (for example, using wires, wirelessly, etc.).
  • the functional blocks may be realized by combining the one device or the multiple devices with software.
  • the functions include, but are not limited to, judgement, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, deeming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment.
  • a functional block (component) that performs the transmission function may be called a transmitting unit, a transmitter, and the like. In either case, as mentioned above, there are no particular limitations on the method of realization.
  • a base station, a user terminal, etc. in one embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • FIG. 19 is a diagram showing an example of the hardware configuration of a base station and a user terminal according to one embodiment.
  • the above-mentioned base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.
  • the terms apparatus, circuit, device, section, unit, etc. may be interpreted as interchangeable.
  • the hardware configurations of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the figures, or may be configured to exclude some of the devices.
  • processor 1001 may be implemented by one or more chips.
  • the functions of the base station 10 and the user terminal 20 are realized, for example, by loading specific software (programs) onto hardware such as the processor 1001 and memory 1002, causing the processor 1001 to perform calculations, control communications via the communication device 1004, and control at least one of the reading and writing of data in the memory 1002 and storage 1003.
  • the processor 1001 for example, runs an operating system to control the entire computer.
  • the processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, registers, etc.
  • CPU central processing unit
  • control unit 110 210
  • transmission/reception unit 120 220
  • etc. may be realized by the processor 1001.
  • the processor 1001 also reads out programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
  • the programs used are those that cause a computer to execute at least some of the operations described in the above embodiments.
  • the control unit 110 (210) may be realized by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be made for other functional blocks.
  • Memory 1002 is a computer-readable recording medium and may be composed of at least one of, for example, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), and other suitable storage media. Memory 1002 may also be called a register, cache, main memory, etc. Memory 1002 can store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to one embodiment of the present disclosure.
  • ROM Read Only Memory
  • EPROM Erasable Programmable ROM
  • EEPROM Electrically EPROM
  • RAM Random Access Memory
  • Memory 1002 may also be called a register, cache, main memory, etc.
  • Memory 1002 can store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to one embodiment of the present disclosure.
  • Storage 1003 is a computer-readable recording medium and may be composed of at least one of a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disk (Compact Disc ROM (CD-ROM)), a digital versatile disk, a Blu-ray disk), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, a stick, a key drive), a magnetic stripe, a database, a server, or other suitable storage medium.
  • Storage 1003 may also be referred to as an auxiliary storage device.
  • the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called, for example, a network device, a network controller, a network card, or a communication module.
  • the communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., to realize at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD).
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the above-mentioned transmitting/receiving unit 120 (220), transmitting/receiving antenna 130 (230), etc. may be realized by the communication device 1004.
  • the transmitting/receiving unit 120 (220) may be implemented as a transmitting unit 120a (220a) and a receiving unit 120b (220b) that are physically or logically separated.
  • the input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts input from the outside.
  • the output device 1006 is an output device (e.g., a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that outputs to the outside.
  • the input device 1005 and the output device 1006 may be integrated into one structure (e.g., a touch panel).
  • each device such as the processor 1001 and 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 between each device.
  • the base station 10 and the user terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized using the hardware.
  • the processor 1001 may be implemented using at least one of these pieces of hardware.
  • a channel, a symbol, and a signal may be read as mutually interchangeable.
  • a signal may also be a message.
  • a reference signal may be abbreviated as RS, and may be called a pilot, a pilot signal, or the like depending on the applied standard.
  • a component carrier may also 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 (e.g., 1 ms) that is independent of numerology.
  • the numerology may be a communication parameter that is applied to at least one of the transmission and reception of a signal or channel.
  • the numerology may indicate, for example, at least one of the following: SubCarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame configuration, a specific filtering process performed by the transceiver in the frequency domain, a specific windowing process performed by the transceiver in the time domain, etc.
  • SCS SubCarrier Spacing
  • TTI Transmission Time Interval
  • radio frame configuration a specific filtering process performed by the transceiver in the frequency domain
  • a specific windowing process performed by the transceiver in the time domain etc.
  • a slot may consist of one or more symbols in the time domain (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.).
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a slot may also be a time unit based on numerology.
  • a slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot.
  • a PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (PUSCH) mapping type A.
  • a PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (PUSCH) mapping type B.
  • a radio frame, a subframe, a slot, a minislot, and a symbol all represent time units when transmitting a signal.
  • a different name may be used for a radio frame, a subframe, a slot, a minislot, and a symbol, respectively.
  • the time units such as a frame, a subframe, a slot, a minislot, and a symbol in this disclosure may be read as interchangeable.
  • one subframe may be called a TTI
  • multiple consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI.
  • at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms.
  • the unit representing the TTI may be called a slot, minislot, etc., instead of a subframe.
  • TTI refers to, for example, the smallest time unit for scheduling in wireless communication.
  • a base station schedules each user terminal by allocating radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) in TTI units.
  • radio resources such as frequency bandwidth and transmission power that can be used by each user terminal
  • the TTI may be a transmission time unit for a channel-coded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc.
  • the time interval e.g., the number of symbols
  • the time interval in which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.
  • one or more TTIs may be the minimum time unit of scheduling.
  • the number of slots (minislots) that constitute the minimum time unit of scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, etc.
  • a TTI shorter than a normal TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.
  • a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms
  • a short TTI e.g., a shortened TTI, etc.
  • TTI length shorter than the TTI length of a long TTI and equal to or greater than 1 ms.
  • a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
  • the number of subcarriers included in an RB may be the same regardless of numerology, and may be, for example, 12.
  • 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 be one slot, one minislot, one subframe, or one TTI in length.
  • One TTI, one subframe, etc. may each be composed of one or more resource blocks.
  • one or more RBs may be referred to as a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a PRB pair, an RB pair, etc.
  • PRB Physical RB
  • SCG sub-carrier Group
  • REG resource element group
  • PRB pair an RB pair, etc.
  • a resource block may be composed of one or more resource elements (REs).
  • REs resource elements
  • one RE may be a radio resource area of one subcarrier and one symbol.
  • a Bandwidth Part which may also be referred to as a partial bandwidth, may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by an index of the RB relative to a common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within the BWP.
  • the BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL).
  • BWP UL BWP
  • BWP for DL DL BWP
  • One or more BWPs may be configured for a UE within one carrier.
  • 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 the active BWP.
  • BWP bitmap
  • radio frames, subframes, slots, minislots, and symbols 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 subcarriers included in an RB, as well as the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.
  • the information, parameters, etc. described in this disclosure may be represented using absolute values, may be represented using relative values from a predetermined value, or may be represented using other corresponding information.
  • a radio resource may be indicated by a predetermined index.
  • the names used for parameters and the like in this disclosure are not limiting in any respect. Furthermore, the formulas and the like using these parameters may differ from those explicitly disclosed in this disclosure.
  • the various channels (PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not limiting in any respect.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
  • the data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.
  • information, signals, etc. may be output from a higher layer to a lower layer and/or from a lower layer to a higher layer.
  • Information, signals, etc. may be input/output via multiple network nodes.
  • Input/output information, signals, etc. may be stored in a specific location (e.g., memory) or may be managed using a management table. Input/output information, signals, etc. may be overwritten, updated, or added to. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to another device.
  • a specific location e.g., memory
  • Input/output information, signals, etc. may be overwritten, updated, or added to.
  • Output information, signals, etc. may be deleted.
  • Input information, signals, etc. may be transmitted to another device.
  • the 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 performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB)), etc.), Medium Access Control (MAC) signaling), other signals, or a combination of these.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • MAC Medium Access Control
  • the physical layer signaling may be called Layer 1/Layer 2 (L1/L2) control information (L1/L2 control signal), L1 control information (L1 control signal), etc.
  • the RRC signaling may be called an RRC message, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.
  • the MAC signaling may be notified, for example, using a MAC Control Element (CE).
  • CE MAC Control Element
  • notification of specified information is not limited to explicit notification, but may be implicit (e.g., by not notifying the specified information or by notifying other information).
  • the determination may be based on a value represented by a single bit (0 or 1), a Boolean value represented by true or false, or a comparison of numerical values (e.g., with a predetermined value).
  • Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • Software, instructions, information, etc. may also be transmitted and received via a transmission medium.
  • a transmission medium For example, if the software is transmitted from a website, server, or other remote source using at least one of wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and/or wireless technologies (such as infrared, microwave, etc.), then at least one of these wired and wireless technologies is included within the definition of a transmission medium.
  • wired technologies such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)
  • wireless technologies such as infrared, microwave, etc.
  • Network may refer to the devices included in the network (e.g., base stations).
  • precoding "precoder,” “weight (precoding weight),” “Quasi-Co-Location (QCL),” “Transmission Configuration Indication state (TCI state),” "spatial relation,” “spatial domain filter,” “transmit power,” “phase rotation,” “antenna port,” “antenna port group,” “layer,” “number of layers,” “rank,” “resource,” “resource set,” “resource group,” “beam,” “beam width,” “beam angle,” “antenna,” “antenna element,” and “panel” may be used interchangeably.
  • Base Station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, etc.
  • a base station can accommodate one or more (e.g., three) cells.
  • a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services by a base station subsystem (e.g., a small base station for indoor use (Remote Radio Head (RRH))).
  • RRH Remote Radio Head
  • the term "cell” or “sector” refers to a part or the entire coverage area of at least one of the base station and base station subsystems that provide communication services in this coverage.
  • a base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control/operate based on the information.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc.
  • at least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.
  • the moving body in question refers to an object that can move, and the moving speed is arbitrary, and of course includes the case where the moving body is stationary.
  • the moving body in question includes, but is not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcarts, rickshaws, ships and other watercraft, airplanes, rockets, artificial satellites, drones, multicopters, quadcopters, balloons, and objects mounted on these.
  • the moving body in question may also be a moving body that moves autonomously based on an operating command.
  • the moving object may be a vehicle (e.g., a car, an airplane, etc.), an unmanned moving object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned).
  • a vehicle e.g., a car, an airplane, etc.
  • an unmanned moving object e.g., a drone, an autonomous vehicle, etc.
  • a robot manned or unmanned
  • at least one of the base station and the mobile station may also include 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. 20 is a diagram showing an example of a vehicle according to an embodiment.
  • the vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.
  • various sensors including a current sensor 50, a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58
  • an information service unit 59 including a communication module 60.
  • the drive unit 41 is composed of at least one of an engine, a motor, and a hybrid of an engine and a motor, for example.
  • the steering unit 42 includes at least a steering wheel (also called a handlebar), 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 is composed of a microprocessor 61, memory (ROM, RAM) 62, and a communication port (e.g., an Input/Output (IO) port) 63. Signals are input to the electronic control unit 49 from various sensors 50-58 provided in the vehicle.
  • the electronic control unit 49 may also be called an Electronic Control Unit (ECU).
  • ECU Electronic Control Unit
  • Signals from the various sensors 50-58 include a current signal from a current sensor 50 that senses the motor current, a rotation speed signal of the front wheels 46/rear wheels 47 acquired by a rotation speed sensor 51, an air pressure signal of the front wheels 46/rear wheels 47 acquired by an air pressure sensor 52, a vehicle speed signal acquired by a vehicle speed sensor 53, an acceleration signal acquired by an acceleration sensor 54, a depression amount signal of the accelerator pedal 43 acquired by an accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 acquired by a brake pedal sensor 56, an operation signal of the shift lever 45 acquired by a shift lever sensor 57, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by an object detection sensor 58.
  • the information service unit 59 is composed of various devices, such as a car navigation system, audio system, speakers, displays, televisions, and radios, for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices.
  • the information service unit 59 uses information acquired from external devices via the communication module 60, etc., to provide various information/services (e.g., multimedia information/multimedia services) to the occupants of the vehicle 40.
  • various information/services e.g., multimedia information/multimedia services
  • the information service unit 59 may include input devices (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accept input from the outside, and may also include output devices (e.g., a display, a speaker, an LED lamp, a touch panel, etc.) that perform output to the outside.
  • input devices e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.
  • output devices e.g., a display, a speaker, an LED lamp, a touch panel, etc.
  • the driving assistance system unit 64 is composed of various devices that provide functions for preventing accidents and reducing the driver's driving load, such as a millimeter wave radar, a Light Detection and Ranging (LiDAR), a camera, a positioning locator (e.g., a Global Navigation Satellite System (GNSS)), map information (e.g., a High Definition (HD) map, an Autonomous Vehicle (AV) map, etc.), a gyro system (e.g., an Inertial Measurement Unit (IMU), an Inertial Navigation System (INS), etc.), an Artificial Intelligence (AI) chip, and an AI processor, and one or more ECUs that control these devices.
  • the driving assistance system unit 64 also transmits and receives various information via the communication module 60 to realize a driving assistance function or an autonomous driving function.
  • 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 transmits and receives data (information) via the communication port 63 between the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58 that are provided on the vehicle 40.
  • 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 an external device. For example, it transmits and receives various information to and from the 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 above-mentioned base station 10 or user terminal 20.
  • the communication module 60 may also be, for example, at least one of the above-mentioned base station 10 and user terminal 20 (it may function as at least one of the base station 10 and user terminal 20).
  • the communication module 60 may transmit at least one of the signals from the various sensors 50-58 described above input to the electronic control unit 49, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 59 to an external device via wireless communication.
  • the electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may be referred to as input units that accept 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, vehicle distance information, etc.) transmitted from an external device and displays it on an information service unit 59 provided in the vehicle.
  • the information service unit 59 may also be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH (or data/information decoded from the PDSCH) received by the communication module 60).
  • the communication module 60 also stores various information received from external devices in memory 62 that can be used by the microprocessor 61. Based on the information stored in memory 62, the microprocessor 61 may control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, various sensors 50-58, and the like provided on the vehicle 40.
  • the base station in the present disclosure may be read as a user terminal.
  • each aspect/embodiment of the present disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
  • the user terminal 20 may be configured to have the functions of the base station 10 described above.
  • terms such as "uplink” and "downlink” may be read as terms corresponding to terminal-to-terminal communication (for example, "sidelink").
  • the uplink channel, downlink channel, etc. may be read as the sidelink channel.
  • the user terminal in this disclosure may be interpreted as a base station.
  • the base station 10 may be configured to have the functions of the user terminal 20 described above.
  • operations that are described as being performed by a base station may in some cases be performed by its upper node.
  • a network that includes one or more network nodes having base stations, it is clear that various operations performed for communication with terminals may be performed by the base station, one or more network nodes other than the base station (such as, but not limited to, a Mobility Management Entity (MME) or a Serving-Gateway (S-GW)), or a combination of these.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • each aspect/embodiment described in this disclosure may be used alone, in combination, or switched between depending on the implementation.
  • the processing procedures, sequences, flow charts, etc. of each aspect/embodiment described in this disclosure may be rearranged as long as there is no inconsistency.
  • the methods described in this disclosure present elements of various steps using an exemplary order, 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
  • 4th generation mobile communication system 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • xG x is, for example, an integer or decimal
  • Future Radio Access FX
  • GSM Global System for Mobile communications
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth (registered trademark), and other appropriate wireless communication methods, as well as next-generation systems that are expanded, modified,
  • the phrase “based on” does not mean “based only on,” unless expressly stated otherwise. In other words, the phrase “based on” means both “based only on” and “based at least on.”
  • any reference to elements using designations such as “first,” “second,” etc., used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a 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 some way.
  • determining may encompass a wide variety of actions. For example, “determining” may be considered to be judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry (e.g., looking in a table, database, or other data structure), ascertaining, etc.
  • Determining may also be considered to mean “determining” receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in a memory), etc.
  • “Judgment” may also be considered to mean “deciding” to resolve, select, choose, establish, compare, etc.
  • judgment may also be considered to mean “deciding” to take some kind of action.
  • the "maximum transmit power" referred to in this disclosure may mean the maximum value of transmit power, may mean the nominal UE maximum transmit power, or may mean the rated UE maximum transmit power.
  • connection and “coupled,” or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” to each other.
  • the coupling or connection between the elements may be physical, logical, or a combination thereof. For example, "connected” may be read as "accessed.”
  • a and B are different may mean “A and B are different from each other.”
  • the term may also mean “A and B are each different from C.”
  • Terms such as “separate” and “combined” may also be interpreted in the same way as “different.”

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  • Engineering & Computer Science (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

Le but de la présente invention est de commander correctement une transmission de puissance complète UL avec plus de 4 ports d'antenne. Selon un aspect de la présente invention, un terminal comprend une unité de transmission transmettant des informations relatives à une configuration d'amplificateur de puissance (PA), et une unité de commande déterminant un précodeur pour une transmission de puissance complète qui utilise plus de quatre ports d'antenne lorsqu'un mode de détermination du précodeur est configuré à l'aide d'un procédé différent d'un mode pleine puissance 0/1/2.
PCT/JP2023/032391 2022-10-13 2023-09-05 Terminal, procédé de communication sans fil et station de base Ceased WO2024080040A1 (fr)

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JP2024551311A JPWO2024080040A5 (ja) 2023-09-05 端末、無線通信方法、基地局及びシステム

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021117194A1 (fr) * 2019-12-12 2021-06-17 株式会社Ｎｔｔドコモ Terminal et procédé de communication sans fil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021117194A1 (fr) * 2019-12-12 2021-06-17 株式会社Ｎｔｔドコモ Terminal et procédé de communication sans fil

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
INTERDIGITAL, INC.: "SRI/TPMI Enhancement for 8TX UE", 3GPP TSG RAN WG1 #110 R1-2205822, 12 August 2022 (2022-08-12), XP052273752 *
QUALCOMM INCORPORATED: "Enhancements for 8 Tx UL transmissions", 3GPP TSG RAN WG1 #110B-E R1-2209973, 30 September 2022 (2022-09-30), XP052259445 *

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