WO2022220110A1 - 端末、無線通信方法及び基地局 - Google Patents

端末、無線通信方法及び基地局 Download PDF

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Publication number
WO2022220110A1
WO2022220110A1 PCT/JP2022/015532 JP2022015532W WO2022220110A1 WO 2022220110 A1 WO2022220110 A1 WO 2022220110A1 JP 2022015532 W JP2022015532 W JP 2022015532W WO 2022220110 A1 WO2022220110 A1 WO 2022220110A1
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Prior art keywords
pucch
power control
tci
tci state
transmission
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PCT/JP2022/015532
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English (en)
French (fr)
Japanese (ja)
Inventor
祐輝 松村
聡 永田
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NTT Docomo Inc
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NTT Docomo Inc
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Priority to CN202280038412.7A priority Critical patent/CN117397317A/zh
Priority to US18/555,132 priority patent/US12507175B2/en
Priority to JP2023514581A priority patent/JP7620085B2/ja
Publication of WO2022220110A1 publication Critical patent/WO2022220110A1/ja
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    • 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]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • 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]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • 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]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • the present disclosure relates to terminals, wireless communication methods, and base stations in next-generation mobile communication systems.
  • LTE Long Term Evolution
  • 3GPP Rel. 10-14 LTE-Advanced (3GPP Rel. 10-14) has been specified for the purpose of further increasing the capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).
  • LTE successor systems for example, 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 and later
  • 5G 5th generation mobile communication system
  • 5G+ 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • NR New Radio
  • UE User Equipment
  • QCL assumption/Transmission Configuration Indication It has been considered to control transmission and reception processes based on TCI (state/space relationship).
  • one object of the present disclosure is to provide a terminal, a wireless communication method, and a base station that appropriately control power control parameters.
  • a terminal is a transmission configuration indication (TCI) state applied to multiple types of uplink signals, and applied to one type of uplink signal among the multiple types of uplink signals. and a control unit configured to control transmission of the one type of uplink signal based on the information.
  • TCI transmission configuration indication
  • power control parameters can be appropriately controlled.
  • FIG. 1 is a diagram illustrating an example of joint TCI state activation.
  • 2A and 2B are diagrams illustrating an example of separate TCI state activation.
  • 3A and 3B are diagrams illustrating an example of a common TCI state indication for a single TRP.
  • 4A and 4B are diagrams illustrating an example of a common TCI state indication for multi-TRPs.
  • 5A and 5B are diagrams illustrating an example of the structure of the unified TCI state RRC information element according to aspect 1-1.
  • FIGS. 6A and 6B are diagrams illustrating an example of a unified TCI state RRC information element structure and a notification indicating an association between unified TCI states and power control parameters according to aspect 1-2.
  • FIG. 1 is a diagram illustrating an example of joint TCI state activation.
  • 2A and 2B are diagrams illustrating an example of separate TCI state activation.
  • 3A and 3B are diagrams illustrating an example of a common TCI state indication for
  • FIG. 7 is a diagram showing an example of notification of the ID and value of the power control parameter set according to aspect 2-2.
  • FIG. 8 is a diagram illustrating an example of notification of association between unified TCI states and power control parameter sets according to aspect 2-1.
  • FIG. 9 is a diagram illustrating an example of notification of power control parameter IDs and values according to aspect 2-2.
  • FIG. 10 is a diagram illustrating an example of notification of association between unified TCI states and power control parameters according to aspect 2-2.
  • FIG. 11 is a diagram illustrating an example of a schematic configuration of a radio communication system according to an embodiment.
  • FIG. 12 is a diagram illustrating an example of the configuration of a base station according to one embodiment.
  • FIG. 13 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment;
  • FIG. 14 is a diagram illustrating an example of hardware configurations of a base station and a user terminal according to an embodiment.
  • the reception processing e.g., reception, demapping, demodulation, decoding
  • transmission processing e.g, at least one of transmission, mapping, precoding, modulation, encoding
  • the TCI state may represent those that apply to downlink signals/channels.
  • the equivalent of TCI conditions applied to uplink signals/channels may be expressed as spatial relations.
  • the TCI state is information about the pseudo-colocation (QCL) of signals/channels, and may be called spatial reception parameters, spatial relation information, or the like.
  • the TCI state may be set in the UE on a channel-by-channel or signal-by-signal basis.
  • QCL is an index that indicates the statistical properties of a signal/channel. For example, when one signal/channel and another signal/channel have a QCL relationship, Doppler shift, Doppler spread, average delay ), delay spread, spatial parameters (e.g., spatial Rx parameter) are identical (QCL with respect to at least one of these). You may
  • the spatial reception parameters may correspond to the reception beams of the UE (eg, reception analog beams), and the beams may be specified based on the spatial QCL.
  • QCL or at least one element of QCL in the present disclosure may be read as sQCL (spatial QCL).
  • QCL types may be defined for the QCL.
  • QCL types AD may be provided with different parameters (or parameter sets) that can be assumed to be the same, and the parameters (which may be called QCL parameters) are shown below: QCL type A (QCL-A): Doppler shift, Doppler spread, mean delay and delay spread, QCL type B (QCL-B): Doppler shift and Doppler spread, QCL type C (QCL-C): Doppler shift and mean delay; • QCL Type D (QCL-D): Spatial reception parameters.
  • QCL information such as those shown in QCL types A through D above may be referred to as QCL properties.
  • CORESET Control Resource Set
  • QCL QCL type D
  • a UE may determine at least one of a transmit beam (Tx beam) and a receive beam (Rx beam) for a signal/channel based on the TCI conditions or QCL assumptions of that signal/channel.
  • Tx beam transmit beam
  • Rx beam receive beam
  • the TCI state may be, for example, information about the QCL between the channel of interest (in other words, the reference signal (RS) for the channel) and another signal (for example, another RS). .
  • the TCI state may be set (indicated) by higher layer signaling, physical layer signaling or a combination thereof.
  • Physical layer signaling may be, for example, downlink control information (DCI).
  • DCI downlink control information
  • Channels for which TCI states or spatial relationships are set are, for example, Physical Downlink Shared Channel (PDSCH), Physical Downlink Control Channel (PDCCH), Physical Uplink Shared Channel It may be at least one of a channel (PUSCH)) and an uplink control channel (Physical Uplink Control Channel (PUCCH)).
  • PDSCH Physical Downlink Shared Channel
  • PDCCH Physical Uplink Control Channel
  • RSs that have a QCL relationship with the channel are, for example, a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), a measurement reference signal (Sounding It may be at least one of a reference signal (SRS)), a tracking CSI-RS (also called a tracking reference signal (TRS)), and a QCL detection reference signal (also called a QRS).
  • SSB synchronization signal block
  • CSI-RS channel state information reference signal
  • Sounding It may be at least one of a reference signal (SRS)), a tracking CSI-RS (also called a tracking reference signal (TRS)), and a QCL detection reference signal (also called a QRS).
  • SRS reference signal
  • TRS tracking reference signal
  • QRS QCL detection reference signal
  • An SSB is a signal block that includes at least one of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH Physical Broadcast Channel
  • An SSB may also be called an SS/PBCH block.
  • a QCL type X RS in a TCI state may mean an RS that has a QCL type X relationship with (the DMRS of) a certain channel/signal, and this RS is called a QCL type X QCL source in that TCI state.
  • Path loss PL b, f, c (q d ) [dB] in transmission power control of each of PUSCH, PUCCH, and SRS is a reference signal for downlink BWP (RS, It is calculated by the UE using the pathloss reference RS (PathlossReferenceRS) index qd .
  • pathloss reference RS, pathloss(PL)-RS, PLRS, index q d , RS used for pathloss calculation, and RS resource used for pathloss calculation may be read interchangeably.
  • calculation, estimation, measurement, and track may be used interchangeably.
  • pathloss RS is updated by MAC CE, it is being considered whether to change the existing mechanism of higher layer filtered RSRP for pathloss measurement.
  • pathloss measurement based on L1-RSRP may be applied.
  • the higher layer filter RSRP is used for pathloss measurement, even if L1-RSRP is used for pathloss measurement before the higher layer filter RSRP is applied. good.
  • the higher layer filter RSRP is used for the pathloss measurement, and before that timing the upper layer filter RSRP of the previous pathloss RS may be used. . Rel. 15, a higher layer filter RSRP is used for pathloss measurement, and the UE may track all pathloss RS candidates configured by RRC.
  • the maximum number of pathloss RSs configurable by RRC may depend on UE capabilities. If the maximum number of pathloss RSs that can be configured by RRC is X, X or less pathloss RS candidates may be configured by RRC, and a pathloss RS may be selected by MAC CE from among the configured pathloss RS candidates.
  • the maximum number of pathloss RSs configurable by RRC may be 4, 8, 16, 64, and so on.
  • the upper layer filter RSRP, filtered RSRP, and layer 3 filtered RSRP may be read interchangeably.
  • the DL DCI (PDSCH If the time offset between the reception of the DCI to schedule) and the corresponding PDSCH (the PDSCH scheduled by that DCI) is smaller than a threshold (timeDurationForQCL) (applicable condition, first condition), if non-cross-carrier scheduling , the PDSCH TCI state (default TCI state) may be the TCI state of the lowest CORESET ID in the most recent slot in the active DL BWP of that CC (for the particular UL signal). Otherwise, the TCI state of the PDSCH (default TCI state) may be the TCI state of the lowest TCI state ID of the PDSCH in the active DL BWP of the scheduled CC.
  • timeDurationForQCL applicable condition, first condition
  • Rel. 15 requires separate MAC CEs for activation/deactivation of PUCCH spatial relations and MAC CEs for activation/deactivation of SRS spatial relations.
  • the PUSCH spatial relationship follows the SRS spatial relationship.
  • At least one of MAC CE for activation/deactivation of PUCCH spatial relationship and MAC CE for activation/deactivation of SRS spatial relationship may not be used.
  • both the spatial relationship and PL-RS for PUCCH are not configured (applicable condition, second condition)
  • default assumption of spatial relationship and PL-RS for PUCCH (default spatial relationship and default PL-RS) applies.
  • both the spatial relationship and PL-RS for SRS (SRS resource for SRS or SRS resource corresponding to SRI in DCI format 0_1 that schedules PUSCH) are not configured (applicable condition, second condition)
  • the default assumption of spatial relationship and PL-RS (default spatial relationship and default PL-RS) is applied for PUSCH and SRS scheduled by DCI format 0_1.
  • the default spatial relationship and default PL-RS are assumed to be the TCI state or QCL of the CORESET with the lowest CORESET ID in that active DL BWP. There may be. If no CORESET is set in the active DL BWP on that CC, the default spatial relationship and default PL-RS may be the active TCI state with the lowest ID of the PDSCH in that active DL BWP.
  • the spatial relationship of PUSCHs scheduled by DCI format 0_0 follows the spatial relationship of the PUCCH resource with the lowest PUCCH resource ID among the active spatial relationships of PUCCHs on the same CC.
  • the network needs to update the PUCCH spatial relationship on all SCells even if no PUCCH is transmitted on the SCell.
  • the conditions for applying the default spatial relationship/default PL-RS for SRS may include that the default beam path loss enablement information element for SRS (higher layer parameter enableDefaultBeamPlForSRS) is set to valid.
  • the conditions for applying the default spatial relationship/default PL-RS for PUCCH may include that the enable default beam path loss information element for PUCCH (higher layer parameter enableDefaultBeamPlForPUCCH) is set to Enabled.
  • the application condition of the default spatial relationship/default PL-RS for PUSCH scheduled by DCI format 0_0 is that the default beam path loss enable information element for PUSCH scheduled by DCI format 0_0 (higher layer parameter enableDefaultBeamPlForPUSCH0_0) is set to valid.
  • the above thresholds are time duration for QCL, "timeDurationForQCL”, “Threshold”, “Threshold for offset between a DCI indicating a TCI state and a PDSCH scheduled by the DCI”, “Threshold-Sched-Offset", schedule It may also be called an offset threshold, a scheduling offset threshold, or the like.
  • Multi-TRP In NR, one or more transmission/reception points (Transmission/Reception Points (TRP)) (multi TRP (multi TRP (MTRP))) uses one or more panels (multi-panel) to the UE DL transmission is under consideration. It is also being considered that the UE uses one or more panels to perform UL transmissions for one or more TRPs.
  • TRP Transmission/Reception Points
  • MTRP multi TRP
  • a plurality of TRPs may correspond to the same cell identifier (cell identifier (ID)) or may correspond to different cell IDs.
  • the cell ID may be a physical cell ID or a virtual cell ID.
  • Multi-TRPs may be connected by ideal/non-ideal backhauls to exchange information, data, and the like.
  • Different codewords (CW) and different layers may be transmitted from each TRP of the multi-TRP.
  • Non-Coherent Joint Transmission NCJT may be used as one form of multi-TRP transmission.
  • TRP#1 modulate-maps a first codeword and layer-maps a first number of layers (e.g., two layers) with a first precoding to transmit a first PDSCH.
  • TRP#2 also modulates and layer-maps a second codeword to transmit a second PDSCH with a second number of layers (eg, 2 layers) with a second precoding.
  • multiple PDSCHs to be NCJTed may be defined as partially or completely overlapping in at least one of the time and frequency domains. That is, the first PDSCH from the first TRP and the second PDSCH from the second TRP may overlap at least one of time and frequency resources.
  • first PDSCH and second PDSCH are not quasi-co-located (QCL).
  • Reception of multiple PDSCHs may be translated as simultaneous reception of PDSCHs that are not of a certain QCL type (eg, QCL type D).
  • Multiple PDSCHs from multiple TRPs may be scheduled using one DCI (single DCI, single PDCCH) (single master mode, based on single DCI Multi-TRP (single-DCI based multi-TRP)).
  • Multiple PDSCHs from multi-TRP may be scheduled using multiple DCIs (multi-DCI, multiple PDCCH) (multi-master mode, multi-DCI based multi-TRP (multiple PDCCH)). TRP)).
  • PDSCH transport block (TB) or codeword (CW) repetition across multi-TRPs.
  • repetition schemes URLLC schemes, eg schemes 1, 2a, 2b, 3, 4
  • SDM space division multiplexed
  • FDM frequency division multiplexed
  • RV redundancy version
  • the RVs may be the same or different for the multi-TRPs.
  • multiple PDSCHs from multiple TRPs are time division multiplexed (TDM).
  • TDM time division multiplexed
  • multiple PDSCHs from multiple TRPs are transmitted within one slot.
  • multiple PDSCHs from multiple TRPs are transmitted in different slots.
  • one control resource set (CORESET) in PDCCH configuration information (PDCCH-Config) may correspond to one TRP.
  • the UE may determine multi-TRP based on multi-DCI if at least one of the following conditions 1 and 2 is met: In this case, TRP may be read as a CORESET pool index.
  • TRP may be read as a CORESET pool index.
  • a CORESET pool index of 1 is set.
  • Two different values (eg, 0 and 1) of the CORESET pool index are set.
  • the UE may determine multi-TRP based on single DCI if the following conditions are met: In this case, two TRPs may be translated into two TCI states indicated by MAC CE/DCI. [conditions] "Enhanced TCI States Activation/Deactivation for UE- specific PDSCH MAC CE)” is used.
  • DCI for common beam indication may be a UE-specific DCI format (e.g., DL DCI format (e.g., 1_1, 1_2), UL DCI format (e.g., 0_1, 0_2)), or a UE group common (UE-group common) DCI format.
  • DL DCI format e.g., 1_1, 1_2
  • UL DCI format e.g., 0_1, 0_2
  • UE group common UE-group common
  • PUSCH transmission power control In NR, the transmission power of PUSCH is controlled based on the TPC command (also called value, increment/decrement value, correction value, etc.) indicated by the value of a field in DCI (also called TPC command field, etc.).
  • TPC command also called value, increment/decrement value, correction value, etc.
  • a UE may use a parameter set (open-loop parameter set) with index j, index l in a power control adjustment state (PUSCH power control adjustment state) to activate an active UL on carrier f of serving cell c.
  • PUSCH transmission power P PUSCH, b, f, c (i, j, q d , l)
  • i [dBm] is P CMAX,f,c(i) , PO_PUSCH,b,f,c (j), M PUSCH RB,b,f,c (i), ⁇ b,f,c (j), PL b,f,c (q d ), ⁇ TF,b,f,c (i), f b,f,c (i,l), (eg, equation (1 )).
  • the power control adjustment state may also be referred to as the TPC command-based value, the TPC command cumulative value, or the closed-loop value of the power control adjustment state index l.
  • l may be called the closed-loop index.
  • the PUSCH transmission opportunity i is a period during which the PUSCH is transmitted, and may be composed of, for example, one or more symbols, one or more slots, or the like.
  • P CMAX,f,c(i) is, for example, the user terminal transmission power (also referred to as maximum transmission power, UE maximum output power, etc.) configured for carrier f of serving cell c at transmission opportunity i.
  • P O_PUSCH,b,f,c (j) is, for example, a parameter related to the target received power set for active UL BWP b of carrier f of serving cell c at transmission opportunity i (eg, a parameter related to transmit power offset, transmission (Also referred to as power offset P0, target received power parameter, etc.).
  • PO_UE_PUSCH,b,f,c (j) may be the sum of PO_NOMINAL_PUSCH,f,c (j) and PO_UE_PUSCH,b,f,c (j).
  • M PUSCH RB,b,f,c (i) is, for example, the number of resource blocks (bandwidth) allocated to PUSCH for transmission opportunity i in active UL BWP b of serving cell c and carrier f with subcarrier spacing ⁇ .
  • ⁇ b,f,c (j) are values provided by higher layer parameters (eg, msg3-Alpha, p0-PUSCH-Alpha, also called fractional factors, etc.).
  • PL b, f, c (q d ) is, for example, a reference signal (RS) for downlink BWP associated with active UL BWP b of carrier f of serving cell c, pathloss reference RS, pathloss (PL)-RS , pathloss reference RS, pathloss measurement DL-RS, PUSCH-PathlossReferenceRS) is the pathloss (pathloss estimation [dB], pathloss compensation) calculated by the user terminal using the index qd .
  • RS reference signal
  • the UE uses a synchronization signal (SS) to obtain the Master Information Block (MIB).
  • SS synchronization signal
  • MIB Master Information Block
  • PL b,f,c (q d ) may be calculated using the RS resources from the /physical broadcast channel (PBCH) block (SS block (SSB)).
  • the set of RS resource indices may include one or both of a set of SS/PBCH block indices and a set of channel state information (CSI)-reference signal (RS) resource indices.
  • the UE may identify the RS resource index q d within the set of RS resource indices.
  • the UE may use the same RS resource index q d for the corresponding PRACH transmission.
  • RAR Random Access Response
  • a UE is provided with a PUSCH power control setting (e.g., SRI-PUSCH-PowerControl) by a sounding reference signal (SRS) resource indicator (SRI) and is provided with one or more values of pathloss reference RS IDs.
  • SRS sounding reference signal
  • SRI resource indicator
  • the mapping between the set of values for the SRI field in DCI format 0_1 and the set of ID values of pathloss reference RSs is defined in higher layer signaling (e.g., sri-PUSCH in SRI-PUSCH-PowerControl -PowerControl-Id).
  • the UE may determine the RS resource index qd from the ID of the pathloss reference RS mapped to the SRI field value in the DCI format 0_1 that schedules the PUSCH.
  • the UE will The same RS resource index q d may be used for PUCCH transmissions in resources.
  • the UE may use the RS resource index q d with a pathloss reference RS ID of zero.
  • a configured grant configuration e.g. ConfiguredGrantConfig
  • the RS resource index is determined by the pathloss reference index (e.g. pathlossReferenceIndex) in the specific parameter.
  • q d may be provided to the UE.
  • the UE For PUSCH transmission configured by the configuration grant configuration, if the configuration grant configuration does not contain a specific parameter, the UE selects the RS from the ID value of the pathloss reference RS mapped to the SRI field in the DCI format that activates the PUSCH transmission. A resource index qd may be determined. If the DCI format does not include the SRI field, the UE may determine the RS resource index q d with a pathloss reference RS ID of zero.
  • ⁇ TF,b,f,c (i) is the transmission power adjustment component (offset, transmission format compensation) for UL BWP b of carrier f in serving cell c.
  • f b,f,c (i,l) is the PUSCH power control adjustment state for active UL BWP b of carrier f in serving cell c at transmission opportunity i.
  • f b,f,c (i,l) may be based on ⁇ PUSCH,b,f,c (i,l).
  • f b,f,c (i,l) may be based on the accumulated value of ⁇ PUSCH,b,f,c (m,l) (e.g., equation (2)) .
  • f b,f,c (i,l) may be ⁇ PUSCH,b,f,c (i,l) (absolute value).
  • the UE sets the TPC command value to Accumulate and determine transmit power (apply TPC command value via accumulation) based on accumulation result (power control state).
  • TPC-Accumulation When information indicating invalidity of TPC accumulation (TPC-Accumulation) is set (when information indicating invalidation of TPC accumulation is provided, when TPC accumulation is set to be invalid), the UE uses the TPC command Determine transmit power based on TPC command value (power control state) without accumulating values (apply TPC command value without accumulation).
  • ⁇ PUSCH,b,f,c (i,l) is a TPC command value included in DCI format 0_0 or DCI format 0_1 that schedules PUSCH transmission opportunity i on active UL BWP b of carrier f of serving cell c, or a specific TPC command value encoded in conjunction with other TPC commands in DCI format 2_2 with CRC scrambled by a Radio Network Temporary Identifier (RNTI) (e.g., TPC-PUSCH-RNTI) of .
  • RNTI Radio Network Temporary Identifier
  • K PUSCH (i) is the serving cell after the last symbol of the corresponding PDCCH reception and before the first symbol of that PUSCH transmission.
  • c may be the number of symbols in active UL BWP b for carrier f.
  • K PUSCH (i) is the number of symbols per slot N symb slot in active UL BWP b of carrier f in serving cell c and PUSCH common configuration information It may be the number of K PUSCH,min symbols equal to the product of the minimum of the values provided by k2 in (PUSCH-ConfigCommon).
  • the power control adjustment state may be set to have a plurality of states (for example, two states) or a single state depending on upper layer parameters. Also, if multiple power control adjustment states are configured, an index l (eg, l ⁇ 0,1 ⁇ ) may identify one of the multiple power control adjustment states.
  • the transmission power of PUCCH is the TPC command (value, increment/decrement value, correction value, instruction value, etc.) indicated by the value of the field in DCI (also called TPC command field, first field, etc.). is controlled based on
  • the PUCCH transmission opportunity for the active UL BWP b of the carrier f of the serving cell c (also known as the transmission period, etc.
  • the transmission power of PUCCH at i) (P PUCCH, b, f, c (i, qu, qd , l)) [dBm] is P CMAX , f, c (i), PO_PUCCH, b, f , c (q u ), M PUCCH RB, b, f, c (i), PL b, f, c (q d ), ⁇ F_PUCCH (F), ⁇ TF, b, f, c (i), g b, f, c (i, l), (eg, equation (3)).
  • the power control adjustment state may also be referred to as the TPC command-based value, the TPC command cumulative value, or the closed-loop value of the power control adjustment state index l.
  • l may be called the closed-loop index.
  • the PUCCH transmission opportunity i is a period during which the PUCCH is transmitted, and may be composed of, for example, one or more symbols, one or more slots, or the like.
  • P CMAX,f,c (i) is, for example, the user terminal transmission power (also referred to as maximum transmission power, UE maximum output power, etc.) configured for carrier f of serving cell c at transmission opportunity i.
  • P O_PUCCH,b,f,c (q u ) is, for example, a parameter related to the target received power set for active UL BWP b of carrier f of serving cell c at transmission opportunity i (eg, a parameter related to transmit power offset, (also referred to as a transmission power offset P0 or a target reception power parameter, etc.).
  • M PUCCH RB,b,f,c (i) is, for example, the number of resource blocks (bandwidth) allocated to PUCCH for transmission opportunity i in active UL BWP b of serving cell c and carrier f with subcarrier spacing ⁇ .
  • PL b,f,c (q d ) is, for example, a reference signal for downlink BWP associated with active UL BWP b of carrier f of serving cell c (pathloss reference RS, pathloss(PL)-RS, pathloss reference RS, pathloss (pathloss estimation [dB], pathloss compensation) calculated by the user terminal using the index qd of pathloss measurement DL-RS, PUCCH-PathlossReferenceRS).
  • the UE uses RS resources obtained from the SS/PBCH block used to obtain the MIB. to calculate the pathloss PL b,f,c (q d ).
  • pathlossReferenceRSs in PUCCH power control information (PUCCH-PowerControl)
  • PUCCH spatial relationship information (PUCCH-SpatialRelationInfo)
  • the UE is provided with pathloss reference RS information for PUCCH
  • This reference signal resource is either on the same serving cell or on the serving cell indicated by the value of pathlossReferenceLinking, if given.
  • the pathloss reference association information indicates which DL the UE applies as a pathloss reference, a special cell (SpCell) or a secondary cell (SCell) corresponding to this UL.
  • a SpCell may be a primary cell (PCell) in a master cell group (MCG) or a primary secondary cell (PSCell) in a secondary cell group (SCG).
  • Pathloss reference RS information indicates a set of reference signals (eg, CSI-RS configuration or SS/PBCH block) used for PUCCH pathloss estimation.
  • ⁇ F_PUCCH (F) is an upper layer parameter given for each PUCCH format.
  • ⁇ TF,b,f,c (i) is the transmission power adjustment component (offset) for UL BWP b for carrier f in serving cell c.
  • g b,f,c (i,l) is the value based on the TPC command of the power control adjustment state index l of the active UL BWP of carrier f for serving cell c and transmission opportunity i (e.g., power control adjustment state, TPC command accumulated value, closed-loop value, PUCCH power adjustment state).
  • transmission opportunity i e.g., power control adjustment state, TPC command accumulated value, closed-loop value, PUCCH power adjustment state.
  • g b,f,c (i,l) may be based on ⁇ PUCCH,b,f,c (i,l).
  • g b,f,c (i,l) may be based on the accumulated value of ⁇ PUCCH,b,f,c (i,l) (e.g., equation (4)) .
  • g b,f,c (i,l) may be ⁇ PUCCH,b,f,c (i,l) (absolute value).
  • ⁇ PUCCH,b,f,c (i,l) is the TPC command value, DCI format 1_0 or DCI format detected by the UE in PUCCH transmission opportunity i of active UL BWP b on carrier f in serving cell c 1_1, or may be encoded in combination with other TPC commands in DCI format 2_2 with a CRC scrambled by a specific Radio Network Temporary Identifier (RNTI) (e.g., TPC-PUSCH-RNTI).
  • RNTI Radio Network Temporary Identifier
  • C(Ci) ⁇ 1 ⁇ PUCCH,b,f,c (m,l) is the sum of the TPC command values in the set C i of TPC command values with cardinality
  • C(C i ) may be
  • C i is the number of K PUCCH (ii 0 ) ⁇ 1 symbols before PUCCH transmission opportunity ii 0 and PUSCH transmission opportunity i for active UL BWP b on carrier f in serving cell c, for PUCCH power control adjustment state l.
  • i 0 may be the smallest positive integer such that K PUCCH (ii 0 ) symbols before PUSCH transmission opportunity ii 0 are earlier than K PUCCH (i) symbols before PUSCH transmission opportunity i.
  • K PUCCH (i) is after the last symbol of the corresponding PDCCH reception and before the first symbol of that PUCCH transmission. , the number of symbols in the active UL BWP b for carrier f in serving cell c.
  • PUCCH transmission is configured by configured grant configuration information (ConfiguredGrantConfig)
  • K PUSCH (i) is the number of symbols per slot N symb slot in active UL BWP b of carrier f in serving cell c
  • PUSCH common configuration information It may be the number of K PUCCH,min symbols equal to the product of the minimum of the values provided by k2 in (PUSCH-ConfigCommon).
  • twoPUCCH-PC-AdjustmentStates twoPUCCH-PC-AdjustmentStates
  • PUCCH spatial relationship information PUCCH spatial relationship information
  • the UE uses the P0 ID for PUCCH (p0-Set in PUCCH-PowerControl in PUCCH-Config
  • the index provided by p0-PUCCH-Id in p0-PUCCH-Id) may yield a mapping between PUCCH Spatial Relation Information ID (pucch-SpatialRelationInfoId) values and closed loop indices (closedLoopIndex, power regulation state index l).
  • the UE may determine the value of the closed loop index that provides the value of l through the link to the corresponding PUCCH P0 ID. .
  • the UE may, based on the PUCCH spatial relationship information associated with the PUCCH P0 ID corresponding to q u and the closed-loop index value corresponding to l, q The value of l may be determined from the value of u .
  • q u may be a PUCCH P0 ID (p0-PUCCH-Id) indicating a PUCCH P0 (P0-PUCCH) in a PUCCH P0 set (p0-Set).
  • the UE shall set the PUCCH P0-ID (p0-PUCCH-Id) in the P0 set (p0-Set) equal to the minimum value of the PUCCH P0-ID (p0-PUCCH-Id).
  • the P0 value for PUCCH (p0-PUCCH-Value) is obtained from the ID value.
  • pathlossReferenceRSs pathloss reference RSs
  • PUCCH pathlossReferenceRSs PUCCH pathloss reference RSs
  • PUCCH pathlossReferenceRS-Id the value of the reference signal (referenceSignal) in the PUCCH pathloss reference RS is obtained.
  • the available RS resources are on the primary cell or, if pathlossReferenceLinking is provided, on the serving cell indicated by the value of pathlossReferenceLinking.
  • PUCCH power control adjustment state (closed loop ) index l 0 if the UE is not provided with the number of PUCCH power control adjustment states maintained by the UE being 2 or PUCCH spatial relationship information.
  • P0, PL-RS, closed-loop indices are determined according to the rules.
  • the PUCCH power control information element includes a P0 set (p0-Set), which is a set of P0 for PUCCH (P0-PUCCH), and a PUCCH path loss reference RS (PUCCH-PathlossReferenceRS). and pathlossReferenceRSs, which are a set of .
  • the PUCCH P0 includes a PUCCH P0-ID (P0-PUCCH-Id) and a PUCCH P0 value (p0-PUCCH-Value).
  • the PUCCH pathloss reference RS includes a PUCCH pathloss reference RS-ID (PUCCH-PathlossReferenceRS-Id) and a reference signal (referenceSignal, SSB index or NZP-CSI-RS resource ID).
  • PUCCH pathloss reference RS-ID PUCCH pathloss reference RS-ID
  • reference signal reference Signal
  • SRS transmission power control For example, using the power control adjustment state index l, the transmission of the SRS on the SRS transmission occasion (also referred to as the transmission period, etc.) i for the active UL BWP b of the carrier f of the serving cell c.
  • Power (P SRS, b, f, c (i, q s , l)) is P CMAX, f, c (i), P O_SRS, b, f, c (q s ), M SRS, b, f , c (i), ⁇ SRS, b, f, c (q s ), PL b, f, c (q d ), h b, f, c (i, l), good (eg, equation (5)).
  • the power control adjustment state may also be referred to as the TPC command-based value, the TPC command cumulative value, or the closed-loop value of the power control adjustment state index l.
  • l may be called the closed-loop index.
  • the SRS transmission opportunity i is a period during which the SRS is transmitted, and may be composed of, for example, one or more symbols, one or more slots, or the like.
  • P CMAX,f,c (i) is, eg, the UE maximum output power for carrier f of serving cell c at SRS transmission opportunity i.
  • P O_SRS,b,f,c (q s ) is provided by p0 for active UL BWP b of carrier f in serving cell c and SRS resource set q s (provided by SRS-ResourceSet and SRS-ResourceSetId) is a parameter related to the target received power (for example, a parameter related to transmission power offset, a transmission power offset P0, or a target received power parameter, etc.).
  • M SRS,b,f,c (i) is the SRS bandwidth in number of resource blocks for SRS transmission opportunity i on active UL BWP b for serving cell c and carrier f with subcarrier spacing ⁇ .
  • ⁇ SRS,b,f,c (q s ) is provided by ⁇ (eg, alpha) for active UL BWP b of serving cell c and carrier f with subcarrier spacing ⁇ and SRS resource set q s .
  • PL b,f,c (q d ) is the DL pathloss estimate [dB] calculated by the UE with RS resource index q d for the active DL BWP of serving cell c and SRS resource set q s ] (pathloss estimation [dB], pathloss compensation).
  • RS resource index q d is the pathloss reference RS (provided by RS for pathloss reference, pathloss(PL)-RS, DL-RS for pathloss measurement, e.g., pathlossReferenceRS) associated with SRS resource set q s , SS/PBCH block index (eg, ssb-Index) or CSI-RS resource index (eg, csi-RS-Index).
  • the UE uses RS resources obtained from the SS/PBCH block used to obtain the MIB. to calculate PL b,f,c (q d ).
  • h b,f,c (i,l) is the SRS power control adjustment state for the active UL BWP of carrier f of serving cell c at SRS transmission opportunity i. Current PUSCH power control adjustment state f b,f,c (i,l ).
  • the SRS power control adjustment state setting indicates independent power control adjustment states for SRS and PUSCH transmissions, then the SRS power control adjustment state h b,f,c (i) is ⁇ SRS,b, It may be based on f, c (m).
  • h b,f,c (i) may be based on the accumulated value of ⁇ SRS,b,f,c (m) (eg, equation (6)).
  • h b,f,c (i) may be ⁇ SRS,b,f,c (i) (absolute value).
  • ⁇ SRS,b,f,c (m) may be a TPC command value that is encoded in PDCCH with DCI (eg, DCI format 2_3) in combination with other TPC commands.
  • i 0 is the smallest positive integer such that K SRS (i ⁇ i 0 ) ⁇ 1 symbols before SRS transmission opportunity i ⁇ i 0 is earlier than K SRS (i) symbols before SRS transmission opportunity i may be
  • K SRS (i) is the number after the last symbol of the corresponding PDCCH that triggers that SRS transmission and before the first symbol of that SRS transmission. , the number of symbols in the active UL BWP b for carrier f in serving cell c. If the SRS transmission is semi-persistent or periodic, K SRS (i) is the number of symbols per slot N symb slot in active UL BWP b on carrier f in serving cell c. , the number of K SRS,min symbols equal to the product of the minimum of the values provided by k2 in the PUSCH common configuration information (PUSCH-ConfigCommon).
  • the unified TCI framework allows UL and DL channels to be controlled by a common framework.
  • the unified TCI framework is Rel. Instead of defining TCI conditions or spatial relationships per channel as in 15, a common beam (common TCI condition) may be indicated and applied to all channels in the UL and DL, or for the UL A common beam may be applied to all channels in the UL and a common beam for the DL may be applied to all channels in the DL.
  • One common beam for both DL and UL, or a common beam for DL and a common beam for UL (two common beams in total) are being considered.
  • the UE may assume the same TCI state (joint TCI state, joint TCI pool, joint common TCI pool, joint TCI state set) for UL and DL.
  • the UE assumes different TCI states for each of UL and DL (separate TCI state, separate TCI pool, UL separate TCI pool and DL separate TCI pool, separate common TCI pool, UL common TCI pool and DL common TCI pool).
  • the UL and DL default beams may be aligned by MAC CE-based beam management (MAC CE level beam designation).
  • the PDSCH default TCI state may be updated to match the default UL beam (spatial relationship).
  • DCI-based beam management may indicate common beam/unified TCI state from the same TCI pool for both UL and DL (joint common TCI pool, joint TCI pool, set).
  • X (>1) TCI states may be activated by MAC CE.
  • the UL/DL DCI may select 1 out of X active TCI states.
  • the selected TCI state may apply to both UL and DL channels/RS.
  • the TCI pool (set) may be a plurality of TCI states set by RRC parameters, or a plurality of TCI states activated by MAC CE (active TCI state, active TCI pool, set).
  • Each TCI state may be a QCL type A/D RS.
  • SSB, CSI-RS, or SRS may be set as QCL type A/D RS.
  • the number of TCI states corresponding to each of one or more TRPs may be defined. For example, the number N ( ⁇ 1) of TCI states (UL TCI states) applied to UL channels/RSs and the number M ( ⁇ 1) of TCI states (DL TCI states) applied to DL channels/RSs and may be defined. At least one of N and M may be signaled/configured/indicated to the UE via higher layer signaling/physical layer signaling.
  • the UE has X UL and DL common TCI states (corresponding to X TRPs) (joint TCI status) is signaled/set/indicated.
  • the UE is notified/configured/instructed of a TCI state common to multiple (two) UL and DL for multiple (two) TRPs (joint TCI state for multiple TRPs).
  • multiple (two) UL TCI states and multiple (two) DL TCI states for multiple (two) TRPs State may mean signaled/set/indicated (separate TCI state for multiple TRPs).
  • N and M are 1 or 2
  • N and M may be 3 or more, and N and M may be different.
  • FIG. 1 shows an example of joint TCI state activation.
  • One or more joint TCI states are set by the RRC IE and one or more of the one or more joint TCI states are activated by the MAC CE.
  • One or more activated joint TCI states may be referred to as an active TCI state pool, an active joint TCI state pool, and so on.
  • Figures 2A and 2B show an example of separate TCI state activation.
  • one or more UL TCI states are set by the RRC IE and one or more of the one or more UL TCI states are activated by the MAC CE.
  • one or more DL TCI states are set by the RRC IE and one or more of the one or more DL TCI states are activated by the MAC CE.
  • One or more activated UL TCI states may be referred to as an active TCI state pool, an active UL TCI state pool, an active separate TCI state pool, and so on.
  • One or more activated DL TCI states may be referred to as an active TCI state pool, an active DL TCI state pool, an active separate TCI state pool, and so on.
  • FIG. 3A shows an example of a joint TCI state indication for a single TRP.
  • FIG. 3B shows an example of a separate TCI state indication for a single TRP.
  • N UL TCI states of one or more UL TCI states are indicated by the DCI.
  • One UL TCI state applies to the UL.
  • One DL TCI state applies to the DL.
  • the first joint TCI state (first set) corresponds to the first TRP.
  • the second joint TCI state (second set) corresponds to the second TRP.
  • the first UL TCI state (first set) corresponds to the first TRP.
  • the second UL TCI state (second set) corresponds to the second TRP.
  • the first DL TCI state (first set) corresponds to the first TRP.
  • the second DL TCI state (second set) corresponds to the second TRP.
  • the settings of power control parameters eg, P0, alpha, closed-loop index
  • P0, alpha, closed-loop index e.g., P0, alpha, closed-loop index
  • the P0, alpha, closed loop index settings are associated with the UL TCI state or (if available) the joint TCI state.
  • the P0, alpha, closed-loop index settings are associated with the UL channel or UL RS.
  • PL-RS are being considered to follow at least one of the following options 2-1 and 2-2.
  • a PL-RS is associated with a UL TCI state or (if available) a joint TCI state.
  • the PL-RS is included in the UL TCI state or joint TCI state (if available).
  • the UE shall , UL TCI state or (if available) the pathloss may be estimated based on the periodic DL-RS provided as the source RS for the determination of the spatial transmit filter within the joint TCI state.
  • This periodic DL-RS may be referred to as default PL-RS.
  • the power control parameters are notified for each unified TCI state.
  • PL-RS is preferably determined for each UL beam.
  • a PL-RS may correspond to a TCI state for any one of PUSCH, PUCCH, and SRS, or may correspond to a TCI state common to PUSCH, PUCCH, and SRS.
  • the transmission power control (formulas 1 to 6 above) is different, and the target reception level (or signal-to-noise ratio (SNR)) is also different. Therefore, even if the same TCI state is applied between PUSCH, PUCCH, and SRS, different values of P0, alpha, and closed loop index may be notified between PUSCH, PUCCH, and SRS. preferable.
  • the relationship between the unified (common) TCI state and power control parameters is not clear. If the relationship between the unified TCI state and power control parameters is not clear, there is a risk of degrading communication quality.
  • the inventors came up with a control method for power control parameters for the unified TCI state/common TCI state.
  • A/B/C and “at least one of A, B and C” may be read interchangeably.
  • cell, serving cell, CC, carrier, BWP, DL BWP, UL BWP, active DL BWP, active UL BWP, band may be read interchangeably.
  • index, ID, indicator, and resource ID may be read interchangeably.
  • supporting, controlling, controllable, operating, and capable of operating may be read interchangeably.
  • configure, activate, update, indicate, enable, specify, select, and switch may be read interchangeably. good.
  • MAC CE and activation/deactivation commands may be read interchangeably.
  • higher layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • RRC, RRC signaling, RRC parameters, higher layers, higher layer parameters, RRC information elements (IEs), RRC messages may be read interchangeably.
  • Broadcast information includes, for example, Master Information Block (MIB), System Information Block (SIB), Remaining Minimum System Information (RMSI), and other system information ( It may be Other System Information (OSI).
  • MIB Master Information Block
  • SIB System Information Block
  • RMSI Remaining Minimum System Information
  • OSI System Information
  • beams, spatial domain filters, spatial settings, TCI states, UL TCI states, unified TCI states, unified beams, common TCI states, common beams, TCI assumptions, QCL assumptions, QCL parameters, spatial Domain Receive Filter, UE Spatial Domain Receive Filter, UE Receive Beam, DL Beam, DL Receive Beam, DL Precoding, DL Precoder, DL-RS, TCI State/QCL Assumed QCL Type D RS, TCI State/QCL Assumed QCL type A RS, spatial relationship, spatial domain transmit filter, UE spatial domain transmit filter, UE transmit beam, UL beam, UL transmit beam, UL precoding, UL precoder, PL-RS may be read interchangeably.
  • QCL type X-RS, DL-RS associated with QCL type X, DL-RS with QCL type X, source of DL-RS, SSB, CSI-RS, SRS may be read interchangeably. good.
  • pool, set, group, list, and candidate may be read interchangeably.
  • beam, spatial domain filter, spatial setting, TCI state, UL TCI state, unified TCI state, unified beam, common TCI state, TCI state for DMRS for PDCCH, for PDSCH TCI conditions for DMRS, common beams, TCI assumptions, QCL assumptions, QCL parameters, spatial domain receive filters, UE spatial domain receive filters, UE receive beams, DL beams, DL receive beams, DL precoding, DL precoder, DL- RS, TCI state/QCL assumed QCL type D RS, TCI state/QCL assumed QCL type A RS, spatial relationship, spatial domain transmit filter, UE spatial domain transmit filter, UE transmit beam, UL beam, UL transmit beam , UL precoding, UL precoder, and PL-RS may be read interchangeably.
  • the panel Uplink (UL) transmitting entity, point, TRP, spatial relationship, control resource set (COntrol REsource SET (CORESET)), PDSCH, codeword, base station, antenna port of a signal (e.g., for demodulation Reference signal (DeModulation Reference Signal (DMRS) port), antenna port group for a certain signal (e.g. DMRS port group), group for multiplexing (e.g. Code Division Multiplexing (CDM)) group, reference signal group, CORESET group), CORESET pool, CORESET subset, CW, redundancy version (RV), layer (MIMO layer, transmission layer, spatial layer) may be read interchangeably.
  • panel identifier (ID) and panel may be read interchangeably.
  • TRP index, TRP ID, CORESET pool index, TCI state ordinal numbers (first, second) in two TCI states, and TRP may be read interchangeably.
  • a unified TCI state, a common TCI state, and a TCI state applied to multiple types of signals may be read interchangeably.
  • power control parameters TPC parameters, PL-RS, P0, alpha, and closed loop index may be read interchangeably.
  • the unified TCI state may be at least one of a joint UL/DL TCI state indication and a separate UL/DL TCI state indication.
  • joint UL/DL TCI state indication, joint beam indication, common beam indication, beam indication for UL and DL may be read interchangeably.
  • separate UL/DL TCI state indication may be read interchangeably.
  • the UE has a TCI state (unified TCI state) applied to multiple types of uplink signals (channels/RS), and one applied to one type of uplink signal among the multiple types of uplink signals. Information relating to the association between the above power control parameters may be received.
  • a UE may use its TCI state and its power control parameters to transmit its one type of uplink signal.
  • a power control parameter value for a first type of uplink signal among a plurality of types of uplink signals and power control for a second type of uplink signal among a plurality of types of uplink signals for the TCI state may be associated with the value of the parameter.
  • the multiple types of uplink signals may be at least two of PUCCH, PUSCH, and SRS.
  • Power control parameters are signaled by higher layer signaling.
  • the power control parameters may include at least one of PL-RS, P0, alpha, closed loop index.
  • the relationship between the unified TCI state and power control parameters may comply with at least one of aspects 1-1 and 1-2 below.
  • the unified TCI state list includes one or more unified TCI states.
  • Unified TCI state includes unified TCI state ID (TCI state ID), PL-RS, P0 for PUCCH, P0 for PUSCH, P0 for SRS, alpha for PUCCH, alpha for PUSCH, and alpha for SRS. , a closed loop index for PUCCH, a closed loop index for PUSCH, and a closed loop index for SRS.
  • the PL-RS may be an RS common to the channels/RSs to which this unified TCI state applies.
  • P0, alpha, closed-loop index may be channel/RS specific (separate) parameters for which this unified TCI state applies.
  • the unified TCI state ID may be the TCI state ID.
  • a unified TCI state may contain one or more QCL type information (QCL information).
  • QCL information includes serving cell index, BWP ID, reference signal (for example, non-zero power (NZP) CSI-RS resource ID or SSB index), and QCL type (for example, type A, type B, type C, type D) and at least one of
  • the parameters in the unified TCI state are not limited to this example.
  • the unified TCI state may not include some of the parameters within the unified TCI state in this example.
  • unified TCI state may not include alpha for PUCCH.
  • PL-RS may refer to either CSI-RS (CSI-RS resource index) or SSB (SSB index).
  • Power control parameters are not signaled within each unified TCI state, and another higher layer signaling (RRC information element) signals the correspondence between each unified TCI state and power control parameters.
  • RRC information element another higher layer signaling
  • the unified TCI state list (RRC information element) includes one or more unified TCI states.
  • a unified TCI state includes a unified TCI state ID.
  • the unified TCI state ID may be the TCI state ID.
  • a unified TCI state may contain one or more QCL type information (QCL information).
  • QCL information includes serving cell index, BWP ID, reference signal (for example, non-zero power (NZP) CSI-RS resource ID or SSB index), and QCL type (for example, type A, type B, type C, type D) and at least one of
  • PL-RS, P0 for PUCCH, P0 for PUSCH, P0 for SRS, alpha for PUCCH, and PUSCH for each value of unified TCI state ID by another higher layer signaling.
  • a combination of values of alpha for SRS, alpha for SRS, closed loop index for PUCCH, closed loop index for PUSCH, and closed loop index for SRS may be notified.
  • the PL-RS may be an RS common to the channels/RSs to which this unified TCI state applies.
  • P0, alpha, closed-loop index may be channel/RS specific (separate) parameters for which this unified TCI state applies.
  • the parameters in the unified TCI state are not limited to this example.
  • the unified TCI state may not include some of the parameters within the unified TCI state in this example.
  • unified TCI state may not include alpha for PUCCH.
  • the relationship between the unified TCI state and the power control parameters becomes clear. Also, for a unified TCI state that applies to multiple types of signals, PL-RS that applies to multiple types of signals and power control parameters that apply to a single type of signal can be set. .
  • Notification of the unified TCI state and power control parameters may comply with at least one of aspects 2-1 and 2-2 below.
  • An ID may be given to a set/list/group/combination of power control parameters (power control parameters).
  • the maximum number of power control parameter sets may be less than the maximum number of unified TCI states.
  • the maximum number of power control parameter sets may be 4, 5, 6, 8, 16, 32, 64, and so on.
  • alpha for SRS may be notified.
  • the unified TCI state may include the power control parameter set ID.
  • the correspondence between the unified TCI state and the power control parameter is notified as in aspect 1-2
  • the correspondence between the unified TCI state ID and the power control parameter set ID may be notified.
  • the value of the power control parameter set ID (TPC parameter set ID) is notified for each unified TCI state ID value.
  • multiple power control parameter sets are signaled by the RRC information element as shown in FIG. 7, and one or more combinations of unified TCI state ID values and power control parameter set ID values are , may be signaled by the RRC information element/MAC CE.
  • Power control parameters can be updated more flexibly by using MAC CE.
  • the power control parameter set ID for each unified TCI state is It can be reduced to 3 bits, and the RRC information element or MAC CE overhead can be reduced.
  • An ID may be provided for each power control parameter value of the one or more power control parameters.
  • the one or more power control parameters are PL-RS, P0 for PUCCH, P0 for PUSCH, P0 for SRS, alpha for PUCCH, alpha for PUSCH, alpha for SRS, and closed loop index for PUCCH. , a closed loop index for PUSCH and a closed loop index for SRS.
  • One or more power control parameters may be referred to as a first parameter, a second parameter, .
  • the maximum number of values for one power control parameter may be less than the maximum number of unified TCI states.
  • the maximum number of values for one power control parameter may be 4, 5, 6, 8, 16, 32, 64, and so on.
  • the value of the power control parameter may be notified for each value of the power control parameter ID.
  • the first parameter is P0 for PUCCH and the second parameter is P0 for PUSCH.
  • the value of the first parameter is notified for each value of the first parameter ID, and the value of the second parameter is notified for each value of the second parameter ID.
  • the unified TCI state may include one or more power control parameter IDs.
  • the correspondence between the unified TCI state ID and one or more power control parameter IDs may be notified.
  • the values of the first parameter ID, the second parameter ID, and the third parameter ID are notified for each unified TCI state ID value.
  • the first parameter is P0 for PUCCH
  • the second parameter is P0 for PUSCH
  • the third parameter is P0 for SRS.
  • the power control parameter set ID for each unified TCI state is It can be reduced to 3 bits, and the RRC information element or MAC CE overhead can be reduced.
  • aspects 1-1, 1-2, 2-1, and 2-2 may not be applied to PL-RS. At least one of aspects 1-1, 1-2, 2-1, and 2-2 may be applied to power control parameters other than PL-RS. If aspects 1-1, 1-2, 2-1, 2-2 are not applied to the PL-RS, or if the UE is in the UL TCI state or joint TCI state PL-RS also, PL-RS and If no association with the UL TCI state or joint TCI state is also configured, the UE shall use the period provided as the source RS for spatial transmit filter determination within the UL TCI state or joint TCI state (if available). Path loss may be estimated based on the target DL-RS.
  • the periodic DL-RS may be SSB or periodic CSI-RS.
  • a higher layer parameter (RRC information element)/UE capability corresponding to at least one function (feature) in each embodiment may be defined.
  • UE capabilities may indicate whether to support this feature.
  • a UE for which a higher layer parameter corresponding to that function is set may perform that function. It may also be defined that "UEs for which upper layer parameters corresponding to the function are not set shall not perform the function".
  • a UE reporting UE capabilities indicating that it supports that function may perform that function. It may be specified that "a UE that does not report UE capabilities indicating that it supports the feature shall not perform that feature".
  • a UE may perform a function if it reports a UE capability indicating that it supports the function, and the higher layer parameters corresponding to the function are configured. "If the UE does not report the UE capability indicating that it supports the function, or if the higher layer parameters corresponding to the function are not set, the UE shall not perform the function" may be defined.
  • the UE capability may indicate whether the UE supports the unified TCI framework (common TCI pool/common beam designation).
  • the common TCI pool may be at least one of a joint TCI pool for both UL and DL, a separate TCI pool for UL, and a separate TCI pool for DL.
  • the common beam indication may be at least one of joint beam indication for both UL and DL, separate beam indication for UL, and separate beam indication for DL.
  • the UE capability may indicate the maximum number of TCI states configured for common beam (common TCI state) indication (how many TCI states the UE supports configured for common beam indication). .
  • the UE capability may indicate the maximum number of active TCI states for common beam (common TCI state) indication (how many active TCI states for common beam indication the UE supports).
  • the UE capability may indicate at least one maximum number of N and M (up to how many N the UE supports/up to how many M the UE supports).
  • UE capabilities may indicate whether unified TCI state can be indicated by DCI (eg, beam directed DCI).
  • DCI eg, beam directed DCI
  • the UE capability may indicate whether or not the UE supports at least one function of aspects 1-1, 1-2, 2-1, 2-2.
  • the UE capability may indicate whether or not to support the default PL-RS.
  • the UE capability may indicate the maximum number of power control parameter set IDs in aspect 2-1.
  • UE capability may indicate the maximum number of power control parameter IDs in aspect 2-2.
  • the UE capability may indicate whether the UE supports updating the correspondence between the Unified TCI state ID and the power control parameter set ID or power control parameter ID by the MAC CE.
  • the UE can implement the above functions while maintaining compatibility with existing specifications.
  • wireless 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 radio communication methods according to the above embodiments of the present disclosure or a combination thereof.
  • FIG. 11 is a diagram showing an example of a schematic configuration of a wireless communication system according to one embodiment.
  • the wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc. specified by the Third Generation Partnership Project (3GPP). .
  • LTE Long Term Evolution
  • 5G NR 5th generation mobile communication system New Radio
  • 3GPP Third Generation Partnership Project
  • the wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)).
  • RATs Radio Access Technologies
  • MR-DC is 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 is 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.
  • LTE 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 has dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC) in which both MN and SN are NR base stations (gNB) )) may be supported.
  • dual connectivity NR-NR Dual Connectivity (NN-DC) in which both MN and SN are NR base stations (gNB)
  • gNB NR base stations
  • a wireless communication system 1 includes a base station 11 forming a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) arranged in the macrocell C1 and forming a small cell C2 narrower than the macrocell C1. You may prepare.
  • a user terminal 20 may be located within at least one cell. The arrangement, number, etc. of each cell and user terminals 20 are not limited to the embodiment shown in the figure.
  • the base stations 11 and 12 are collectively referred to as the base station 10 when not distinguished.
  • the user terminal 20 may connect to at least one of the multiple base stations 10 .
  • the user terminal 20 may utilize at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).
  • CA carrier aggregation
  • CC component carriers
  • DC dual connectivity
  • Each CC may be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)).
  • Macrocell C1 may be included in FR1, and 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
  • a plurality of base stations 10 may be connected by wire (for example, an optical fiber conforming to Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (for example, NR communication).
  • wire for example, an optical fiber conforming to Common Public Radio Interface (CPRI), X2 interface, etc.
  • NR communication for example, when NR communication is used as a backhaul between the base stations 11 and 12, the base station 11 corresponding to the upper station is an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) is an IAB Also called a node.
  • IAB Integrated Access Backhaul
  • relay station 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, for example, at least one of Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), and the like.
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the user terminal 20 may be a terminal compatible with at least one of communication schemes such as LTE, LTE-A, and 5G.
  • a radio access scheme 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
  • a radio access method may be called a waveform.
  • other radio access schemes for example, other single-carrier transmission schemes and other multi-carrier transmission schemes
  • the UL and DL radio access schemes may be used as the UL and DL radio access schemes.
  • a downlink shared channel Physical Downlink Shared Channel (PDSCH)
  • PDSCH Physical Downlink Shared Channel
  • PBCH Physical Broadcast Channel
  • PDCCH Physical Downlink Control Channel
  • an uplink shared channel (PUSCH) shared by each user terminal 20 an uplink control channel (PUCCH), a random access channel (Physical Random Access Channel (PRACH)) or the like may be used.
  • PUSCH uplink shared channel
  • PUCCH uplink control channel
  • PRACH Physical Random Access Channel
  • User data, upper layer control information, System Information Block (SIB), etc. are transmitted by the PDSCH.
  • User data, higher layer control information, and the like may be transmitted by PUSCH.
  • a Master Information Block (MIB) may be transmitted by the PBCH.
  • Lower layer control information may be transmitted by the PDCCH.
  • the lower layer control information may include, for example, downlink control information (DCI) including scheduling information for at least one of PDSCH and PUSCH.
  • DCI downlink control information
  • the DCI that schedules PDSCH may be called DL assignment, DL DCI, etc.
  • the DCI that schedules PUSCH may be called UL grant, UL DCI, etc.
  • PDSCH may be replaced with DL data
  • PUSCH may be replaced with UL data.
  • a control resource set (CControl Resource SET (CORESET)) and a search space (search space) may be used for PDCCH detection.
  • CORESET corresponds to a resource searching for DCI.
  • the search space corresponds to the search area and search method of PDCCH candidates.
  • a CORESET may be associated with one or more search spaces. The UE may monitor CORESETs associated with certain search spaces based on the search space settings.
  • One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels.
  • One or more search spaces may be referred to as a search space set. Note that “search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, etc. in the present disclosure may be read interchangeably.
  • PUCCH channel state information
  • acknowledgment information for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK/NACK, etc.
  • SR scheduling request
  • a random access preamble for connection establishment with a cell may be transmitted by the PRACH.
  • downlink, uplink, etc. may be expressed without adding "link”.
  • various channels may be expressed without adding "Physical" to the head.
  • synchronization signals SS
  • downlink reference signals DL-RS
  • the DL-RS includes a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DeModulation Reference Signal (DMRS)), Positioning Reference Signal (PRS)), Phase Tracking Reference Signal (PTRS)), etc.
  • CRS cell-specific reference signal
  • CSI-RS channel state information reference signal
  • DMRS Demodulation reference signal
  • PRS Positioning Reference Signal
  • PTRS Phase Tracking Reference Signal
  • the synchronization signal may be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • a signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be called SS/PBCH block, SS Block (SSB), and so on.
  • SS, SSB, etc. may also be referred to as reference signals.
  • DMRS may also be called a user terminal-specific reference signal (UE-specific reference signal).
  • FIG. 12 is a diagram illustrating an example of the configuration of a base station according to one embodiment.
  • the base station 10 comprises a control section 110 , a transmission/reception section 120 , a transmission/reception antenna 130 and a transmission line interface 140 .
  • One or more of each of the control unit 110, the transmitting/receiving unit 120, the transmitting/receiving antenna 130, and the transmission line interface 140 may be provided.
  • this example mainly shows the functional blocks that characterize the present embodiment, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
  • the control unit 110 controls the base station 10 as a whole.
  • the control unit 110 can be configured from a controller, a control circuit, and the like, which are explained based on common recognition in the technical field according to the present disclosure.
  • the control unit 110 may control signal generation, scheduling (eg, resource allocation, mapping), and the like.
  • the control unit 110 may control transmission/reception, measurement, etc. using the transmission/reception unit 120 , the transmission/reception antenna 130 and the transmission line interface 140 .
  • the control unit 110 may generate data to be transmitted as a signal, control information, a sequence, etc., and transfer them to the transmission/reception unit 120 .
  • the control unit 110 may perform call processing (setup, release, etc.) of communication channels, state management of the base station 10, management of radio resources, and the like.
  • the transmitting/receiving section 120 may include a baseband section 121 , a radio frequency (RF) section 122 and a measuring section 123 .
  • the baseband section 121 may include a transmission processing section 1211 and a reception processing section 1212 .
  • the transmitting/receiving unit 120 is configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field according to the present disclosure. be able to.
  • the transmission/reception unit 120 may be configured as an integrated transmission/reception unit, or may be configured from a transmission unit and a reception unit.
  • the transmission section may be composed of the transmission processing section 1211 and the RF section 122 .
  • the receiving section may be composed of a reception processing section 1212 , an RF section 122 and a measurement section 123 .
  • the transmitting/receiving antenna 130 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.
  • the transmitting/receiving unit 120 may transmit the above-described downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmitting/receiving unit 120 may receive the above-described uplink channel, uplink reference signal, and the like.
  • the transmitting/receiving unit 120 may form at least one of the transmission beam and the reception beam using digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), or the like.
  • digital beamforming eg, precoding
  • analog beamforming eg, phase rotation
  • the transmission/reception unit 120 (transmission processing unit 1211) performs Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. may be performed to generate a bit string to be transmitted.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • HARQ retransmission control for example, HARQ retransmission control
  • the transmission/reception unit 120 (transmission processing unit 1211) performs channel coding (which may include error correction coding), modulation, mapping, filtering, and discrete Fourier transform (DFT) on the bit string to be transmitted. Processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, transmission processing such as digital-to-analog conversion may be performed, and the baseband signal may be output.
  • channel coding which may include error correction coding
  • modulation modulation
  • mapping mapping
  • filtering filtering
  • DFT discrete Fourier transform
  • DFT discrete Fourier transform
  • the transmitting/receiving unit 120 may perform modulation to a radio frequency band, filter processing, amplification, and the like on the baseband signal, and may transmit the radio frequency band signal via the transmitting/receiving antenna 130. .
  • the transmitting/receiving unit 120 may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 130.
  • the transmission/reception unit 120 (reception processing unit 1212) performs analog-to-digital conversion, Fast Fourier transform (FFT) processing, and Inverse Discrete Fourier transform (IDFT) processing on the acquired baseband signal. )) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing and PDCP layer processing. User data and the like may be acquired.
  • FFT Fast Fourier transform
  • IDFT Inverse Discrete Fourier transform
  • the transmitting/receiving unit 120 may measure the received signal.
  • the measurement unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, etc. based on the received signal.
  • the measurement unit 123 measures received power (for example, Reference Signal Received Power (RSRP)), reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)) , signal strength (for example, Received Signal Strength Indicator (RSSI)), channel information (for example, CSI), and the like may be measured.
  • RSRP Reference Signal Received Power
  • RSSQ Reference Signal Received Quality
  • SINR Signal to Noise Ratio
  • RSSI Received Signal Strength Indicator
  • channel information for example, CSI
  • the transmission path interface 140 transmits and receives signals (backhaul signaling) to and from devices included in the core network 30, other base stations 10, etc., and user data (user plane data) for the user terminal 20, control plane data, and the like. Data and the like may be obtained, transmitted, and the like.
  • the transmitter and receiver of the base station 10 in the present disclosure may be configured by at least one of the transmitter/receiver 120, the transmitter/receiver antenna 130, and the transmission path interface 140.
  • the transmitting/receiving unit 120 uses a transmission configuration indication (TCI) state applied to a plurality of types of uplink signals, and one or more powers applied to one type of uplink signal among the plurality of types of uplink signals. You may transmit the information regarding association with a control parameter.
  • the control unit 110 may control reception of the one type of uplink signal based on the information.
  • TCI transmission configuration indication
  • FIG. 13 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment.
  • the user terminal 20 includes a control section 210 , a transmission/reception section 220 and a transmission/reception antenna 230 .
  • One or more of each of the control unit 210, the transmitting/receiving unit 220, and the transmitting/receiving antenna 230 may be provided.
  • this example mainly shows the functional blocks of the features of the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
  • the control unit 210 controls the user terminal 20 as a whole.
  • the control unit 210 can be configured from a controller, a control circuit, and the like, which are explained based on common recognition in the technical field according to the present disclosure.
  • the control unit 210 may control signal generation, mapping, and the like.
  • the control unit 210 may control transmission/reception, measurement, etc. using the transmission/reception unit 220 and the transmission/reception antenna 230 .
  • the control unit 210 may generate data, control information, sequences, etc. to be transmitted as signals, and transfer them to the transmission/reception unit 220 .
  • the transmitting/receiving section 220 may include a baseband section 221 , an RF section 222 and a measurement section 223 .
  • the baseband section 221 may include a transmission processing section 2211 and a reception processing section 2212 .
  • the transmitting/receiving unit 220 can be configured from a transmitter/receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitting/receiving circuit, etc., which are explained based on common recognition in the technical field according to the present disclosure.
  • the transmission/reception unit 220 may be configured as an integrated transmission/reception unit, or may be configured from a transmission unit and a reception unit.
  • the transmission section may be composed of a transmission processing section 2211 and an RF section 222 .
  • the receiving section may include a reception processing section 2212 , an RF section 222 and a measurement section 223 .
  • the transmitting/receiving antenna 230 can be configured from an antenna described based on common recognition in the technical field related to the present disclosure, such as an array antenna.
  • the transmitting/receiving unit 220 may receive the above-described downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmitting/receiving unit 220 may transmit the above-described uplink channel, uplink reference signal, and the like.
  • the transmitter/receiver 220 may form at least one of the transmission beam and the reception beam using digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), or the like.
  • digital beamforming eg, precoding
  • analog beamforming eg, phase rotation
  • the transmission/reception unit 220 (transmission processing unit 2211) performs PDCP layer processing, RLC layer processing (for example, RLC retransmission control), MAC layer processing (for example, for data and control information acquired from the control unit 210, for example , HARQ retransmission control), etc., to generate a bit string to be transmitted.
  • RLC layer processing for example, RLC retransmission control
  • MAC layer processing for example, for data and control information acquired from the control unit 210, for example , HARQ retransmission control
  • the transmitting/receiving unit 220 (transmission processing unit 2211) performs channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), and IFFT processing on a bit string to be transmitted. , precoding, digital-analog conversion, and other transmission processing may be performed, and the baseband signal may be output.
  • Whether or not to apply DFT processing may be based on transform precoding settings. Transmitting/receiving unit 220 (transmission processing unit 2211), for a certain channel (for example, PUSCH), if transform precoding is enabled, the above to transmit the channel using the DFT-s-OFDM waveform
  • the DFT process may be performed as the transmission process, or otherwise the DFT process may not be performed as the transmission process.
  • the transmitting/receiving unit 220 may perform modulation to a radio frequency band, filter processing, amplification, and the like on the baseband signal, and may transmit the radio frequency band signal via the transmitting/receiving antenna 230. .
  • the transmitting/receiving section 220 may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transmitting/receiving antenna 230.
  • the transmission/reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (error correction) on the acquired baseband signal. decoding), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing may be applied to acquire user data and the like.
  • the transmitting/receiving section 220 may measure the received signal.
  • the measurement unit 223 may perform RRM measurement, CSI measurement, etc. based on the received signal.
  • the measuring unit 223 may measure received power (eg, RSRP), received quality (eg, RSRQ, SINR, SNR), signal strength (eg, RSSI), channel information (eg, CSI), and the like.
  • the measurement result may be output to control section 210 .
  • the transmitter and receiver of the user terminal 20 in the present disclosure may be configured by at least one of the transmitter/receiver 220 and the transmitter/receiver antenna 230 .
  • the transmitting/receiving unit 220 uses a transmission configuration indication (TCI) state applied to a plurality of types of uplink signals, and one or more powers applied to one type of uplink signal among the plurality of types of uplink signals. Information relating to the association of the control parameters may be received.
  • the control unit 210 may control transmission of the one type of uplink signal based on the information.
  • the one or more power control parameters may be a plurality of power control parameters.
  • the information may include a set of values for the plurality of power control parameters and an index corresponding to the set.
  • the information may include respective values of the one or more power control parameters and indices corresponding to the values.
  • the information may include the TCI state and values of the one or more power control parameters or indices corresponding to the values.
  • each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
  • a functional block may be implemented by combining software in the one device or the plurality of devices.
  • function includes judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, deem , broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (component) that performs transmission may be called a transmitting unit, a transmitter, or the like. In either case, as described above, the implementation method is not particularly limited.
  • a base station, a user terminal, etc. in an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • FIG. 14 is a diagram illustrating an example of hardware configurations of a base station and a user terminal according to an embodiment.
  • the base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. .
  • the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of each device shown in the figure, or may be configured without some devices.
  • processor 1001 may be implemented by one or more chips.
  • predetermined software program
  • the processor 1001 performs calculations, communication via the communication device 1004 and at least one of reading and writing data in the memory 1002 and the storage 1003 .
  • the processor 1001 operates an operating system and controls the entire computer.
  • the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
  • CPU central processing unit
  • control unit 110 210
  • transmission/reception unit 120 220
  • FIG. 10 FIG. 10
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to them.
  • programs program codes
  • software modules software modules
  • data etc.
  • the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and other functional blocks may be similarly implemented.
  • the memory 1002 is a computer-readable recording medium, such as Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), or at least any other suitable storage medium. may be configured by one.
  • the memory 1002 may also be called a register, cache, main memory (main storage device), or the like.
  • the memory 1002 can store executable programs (program code), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, Blu-ray disc), removable disc, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium may be configured by Storage 1003 may also be called an auxiliary storage device.
  • a computer-readable recording medium for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, Blu-ray disc), removable disc, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), magnetic stripe, database, server, or other suitable storage medium may be configured by Storage 1003 may also
  • 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 a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, duplexer, filter, frequency synthesizer, etc. in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD), for example. may be configured to include
  • the transmitting/receiving unit 120 (220), the transmitting/receiving antenna 130 (230), and the like described above may be realized by the communication device 1004.
  • the transmitter/receiver 120 (220) may be physically or logically separated into a transmitter 120a (220a) and a receiver 120b (220b).
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
  • Each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
  • the base station 10 and the user terminal 20 include a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc. It may be configured including hardware, and a part or all of each functional block may be realized using the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • a signal may also be a message.
  • a reference signal may be abbreviated as RS, and may also be called a pilot, a pilot signal, etc., depending on the applicable standard.
  • a component carrier may also be called a cell, a frequency carrier, a carrier frequency, or the like.
  • a radio frame may consist of one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) that make up a radio frame may be called a subframe.
  • a subframe may consist of one or more slots in the time domain.
  • a subframe may be a fixed time length (eg, 1 ms) independent of numerology.
  • a numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
  • Numerology for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration , a particular filtering process performed by the transceiver in the frequency domain, a particular windowing process performed by the transceiver in the time domain, and/or the like.
  • a slot may consist of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a slot may also be a unit of time based on numerology.
  • a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
  • a PDSCH (or PUSCH) transmitted in time units larger than a minislot may be referred to as PDSCH (PUSCH) Mapping Type A.
  • PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots, and symbols may be referred to by other corresponding designations. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be read interchangeably.
  • one subframe may be called a TTI
  • a plurality of consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI. That is, at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum scheduling time unit in wireless communication.
  • a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each user terminal) to each user terminal on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each user terminal
  • a TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
  • one or more TTIs may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like.
  • a TTI that is shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms
  • the short TTI e.g., shortened TTI, etc.
  • a TTI having the above TTI length may be read instead.
  • a resource block is a resource allocation unit in the time domain and frequency domain, and may include one or more consecutive subcarriers (subcarriers) in the frequency domain.
  • the number of subcarriers included in the RB may be the same regardless of the neumerology, eg twelve.
  • the number of subcarriers included in an RB may be determined based on neumerology.
  • an RB may contain one or more symbols in the time domain and may be 1 slot, 1 minislot, 1 subframe or 1 TTI long.
  • One TTI, one subframe, etc. may each be configured with one or more resource blocks.
  • One or more RBs are Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB Also called a pair.
  • PRB Physical Resource Block
  • SCG Sub-Carrier Group
  • REG Resource Element Group
  • PRB pair RB Also called a pair.
  • a resource block may be composed of one or more resource elements (Resource Element (RE)).
  • RE resource elements
  • 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
  • a Bandwidth Part (which may also be called a bandwidth part) represents a subset of contiguous common resource blocks (RBs) for a numerology on a carrier.
  • the common RB may be identified by an RB index based on the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
  • BWP for UL
  • BWP for DL DL BWP
  • One or multiple 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, symbols, etc. described above are merely examples.
  • the number of subframes contained in a radio frame, the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers and the number of symbols in a TTI, symbol length, cyclic prefix (CP) length, etc. can be varied.
  • the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information. may be represented. For example, radio resources may be indicated by a predetermined index.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
  • information, signals, etc. can 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 and output through multiple network nodes.
  • Input/output information, signals, etc. may be stored in a specific location (for example, memory), or may be managed using a management table. Input and output information, signals, etc. may be overwritten, updated or appended. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to other devices.
  • Uplink Control Information (UCI) Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • SIB System Information Block
  • MAC Medium Access Control
  • the physical layer signaling may also be called Layer 1/Layer 2 (L1/L2) control information (L1/L2 control signal), L1 control information (L1 control signal), and the like.
  • RRC signaling may also be called an RRC message, and may be, for example, an RRC connection setup message, an RRC connection reconfiguration message, or the like.
  • MAC signaling may be notified using, for example, a MAC Control Element (CE).
  • CE MAC Control Element
  • notification of predetermined information is not limited to explicit notification, but implicit notification (for example, by not notifying the predetermined information or by providing another information by notice of
  • the determination may be made by a value (0 or 1) represented by 1 bit, or by a boolean value represented by true or false. , may be performed by numerical comparison (eg, comparison with a predetermined value).
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • the software uses wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and/or wireless technology (infrared, microwave, etc.) , a server, or other remote source, these wired and/or wireless technologies are included within the definition of transmission media.
  • a “network” may refer to devices (eg, base stations) included in a network.
  • precoding "precoding weight”
  • QCL Quality of Co-Location
  • TCI state Transmission Configuration Indication state
  • spatialal patial relation
  • spatialal domain filter "transmission power”
  • phase rotation "antenna port
  • antenna port group "layer”
  • number of layers Terms such as “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angle”, “antenna”, “antenna element”, “panel” are interchangeable. can be used as intended.
  • base station BS
  • radio base station fixed station
  • NodeB NodeB
  • eNB eNodeB
  • gNB gNodeB
  • Access point "Transmission Point (TP)”, “Reception Point (RP)”, “Transmission/Reception Point (TRP)”, “Panel”
  • a base station may also be referred to by terms such as macrocell, small cell, femtocell, picocell, and the like.
  • a base station can accommodate one or more (eg, three) cells.
  • the overall coverage area of the base station can be partitioned into multiple smaller areas, and each smaller area is assigned to a base station subsystem (e.g., a small indoor base station (Remote Radio)). Head (RRH))) may also provide communication services.
  • a base station subsystem e.g., a small indoor base station (Remote Radio)). Head (RRH)
  • RRH Head
  • the terms "cell” or “sector” refer to part or all of the coverage area of at least one of the base stations and base station subsystems that serve communication within such coverage.
  • MS Mobile Station
  • UE User Equipment
  • Mobile stations include subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals. , a handset, a user agent, a mobile client, a client, or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
  • the mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
  • at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
  • at least one of the base station and mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a user terminal.
  • communication between a base station and a user terminal is replaced with communication between multiple user terminals (for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.)
  • the user terminal 20 may have the functions of the base station 10 described above.
  • words such as "uplink” and “downlink” may be replaced with words corresponding to communication between terminals (for example, "sidelink”).
  • uplink channels, downlink channels, etc. may be read as sidelink channels.
  • user terminals in the present disclosure may be read as base stations.
  • the base station 10 may have the functions of the user terminal 20 described above.
  • operations that are assumed to be performed by the base station may be performed by its upper node in some cases.
  • various operations performed for communication with a terminal may involve the base station, one or more network nodes other than the base station (e.g., Clearly, this can be done by a Mobility Management Entity (MME), Serving-Gateway (S-GW), etc. (but not limited to these) or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • each aspect/embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching along with execution. Also, the processing procedures, sequences, flowcharts, etc. of each aspect/embodiment described in the present disclosure may be rearranged as long as there is no contradiction. For example, the methods described in this disclosure present elements of the various steps using a sample order, and are not limited to the specific order presented.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • xG xG (xG (x is, for example, an integer or a decimal number)
  • Future Radio Access FAA
  • RAT New - Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Future generation radio access
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi®
  • IEEE 802.16 WiMAX®
  • IEEE 802.20 Ultra-WideBand (UWB), Bluetooth®, or other suitable wireless It may be applied to systems using communication methods, next-generation systems extended based on these, and the like. Also, multiple systems may be applied to systems using communication methods, next-generation systems extended based on these, and the like
  • any reference to elements using the "first,” “second,” etc. designations 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, references to first and second elements do not imply that only two elements may be employed or that the first element must precede the second element in any way.
  • determining includes judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiry ( For example, looking up in a table, database, or another data structure), ascertaining, etc. may be considered to be “determining.”
  • determining (deciding) includes receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access ( accessing (e.g., accessing data in memory), etc.
  • determining is considered to be “determining” resolving, selecting, choosing, establishing, comparing, etc. good too. That is, “determining (determining)” may be regarded as “determining (determining)” some action.
  • Maximum transmit power described in this disclosure may mean the maximum value of transmit power, may mean the nominal maximum transmit power (the nominal UE maximum transmit power), or may mean the rated maximum transmit power (the rated UE maximum transmit power).
  • connection refers to any connection or coupling, direct or indirect, between two or more elements. and can include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” to each other. Couplings or connections between elements may be physical, logical, or a combination thereof. For example, "connection” may be read as "access”.
  • radio frequency domain when two elements are connected, using one or more wires, cables, printed electrical connections, etc., and as some non-limiting and non-exhaustive examples, radio frequency domain, microwave They can be considered to be “connected” or “coupled” together using the domain, electromagnetic energy having wavelengths in the optical (both visible and invisible) domain, and the like.
  • a and B are different may mean “A and B are different from each other.”
  • the term may also mean that "A and B are different from C”.
  • Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”

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