Terminal, wireless communication method, base station, and system

Abstract

To provide a device and a method for appropriately determining the transmission power of a plurality of uplink signals.SOLUTION: In a mobile communication system, a user terminal 20 includes a receiving unit that receives instruction information regarding a first uplink signal, and a control unit that determines control information for determining the transmission power of the first uplink signal based on the instruction information. The control unit determines the transmission power of a second uplink signal based on the control information, or determines the transmission power of the first uplink signal and the second uplink signal based on the control information. Between the first uplink signal and the second uplink signal, the types of channels and reference signals are different and beams are different.SELECTED DRAWING: Figure 8

Description

Technical Field

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

Background Art

[0002] In a Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) was standardized for the purpose of further high-speed data rates, low latency, etc. (Non-Patent Document 1). Also, for the purpose of further large capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9), LTE-Advanced (3GPP Rel. 10-14) was standardized.

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

Prior Art Documents

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In a future wireless communication system (e.g., NR), a user terminal (terminal, user terminal, User Equipment (UE)) controls the transmission of an uplink (UL) signal (UL channel / UL reference signal) based on information regarding quasi-co-location (QCL) (QCL assumption / Transmission Configuration Indication (TCI) state / spatial relation) and a power control parameter.

[0006] However, the transmission power control for such a plurality of UL signals may lead to an increase in overhead and complication of UE processing.

[0007] Therefore, one object of the present disclosure is to provide a terminal, a wireless communication method, a base station, and a system that appropriately determine the transmission power of a plurality of uplink signals.

Means for Solving the Problems

[0008] A terminal according to an aspect of the present disclosure includes a receiving unit that receives instruction information regarding a first uplink signal, and a control unit that determines control information for determining the transmission power of the first uplink signal based on the instruction information. The control unit determines the transmission power of a second uplink signal based on the control information, or determines the transmission powers of the first uplink signal and the second uplink signal based on the control information. Between the first uplink signal and the second uplink signal, the types of channels and reference signals are different and the beams are different.

Advantages of the Invention

[0009] According to an aspect of the present disclosure, the transmission powers of a plurality of uplink signals can be appropriately determined.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

[0011] (TCI, Spatial Relationship, QCL) In NR, it is considered to control at least one of reception processing (e.g., at least one of reception, demapping, demodulation, and decoding) and transmission processing (e.g., at least one of transmission, mapping, precoding, modulation, and encoding) in a UE for at least one of a signal and a channel (referred to as a signal / channel) based on a Transmission Configuration Indication state (TCI state).

[0012] The TCI state may represent what is applied to a downlink signal / channel. What corresponds to the TCI state applied to an uplink signal / channel may be expressed as a spatial relation.

[0013] The TCI state is information regarding the quasi - co - location (QCL) of signals / channels, and may also be referred to as spatial reception parameters, spatial relation information, etc. The TCI state may be set for each UE per channel or per signal.

[0014] QCL is an indicator showing the statistical properties of signals / channels. For example, when a certain signal / channel and another signal / channel are in a QCL relationship, it may mean that at least one of Doppler shift, Doppler spread, average delay, delay spread, and spatial parameter (e.g., spatial Rx parameter) is the same (QCL for at least one of these) among these different multiple signals / channels.

[0015] Note that the spatial reception parameter may correspond to the receiving beam of the UE (e.g., receiving analog beam), and the beam may be specified based on spatial QCL. QCL (or at least one element of QCL) in the present disclosure may be read as sQCL (spatial QCL).

[0016] Multiple types (QCL types) of QCL may be defined. For example, four QCL types A - D may be provided with different parameters (or parameter sets) that can be assumed to be the same, and the parameters (which may also be called QCL parameters) are shown below: · QCL type A (QCL - A): Doppler shift, Doppler spread, average delay, and delay spread, · QCL type B (QCL - B): Doppler shift and Doppler spread, · QCL type C (QCL - C): Doppler shift and average delay, ·QCL type D (QCL-D): Spatial reception parameter.

[0017] The assumption by a UE that a certain control resource set (Control Resource Set (CORESET)), channel, or reference signal is in a relationship of a specific QCL (e.g., QCL type D) with another CORESET, channel, or reference signal may be referred to as a QCL assumption.

[0018] The UE may determine at least one of the transmission beam (Tx beam) and the reception beam (Rx beam) of the signal / channel based on the TCI state or QCL assumption of the signal / channel.

[0019] The TCI state may be, for example, information regarding the QCL between a target channel (in other words, a reference signal (Reference Signal (RS)) for the channel) and another signal (e.g., another RS). The TCI state may be set (indicated) by higher layer signaling, physical layer signaling, or a combination thereof.

[0020] The physical layer signaling may be, for example, downlink control information (Downlink Control Information (DCI)).

[0021] The channel for which the TCI state or spatial relationship is set (specified) may be, for example, at least one of a physical downlink shared channel (Physical Downlink Shared Channel (PDSCH)), a physical downlink control channel (Physical Downlink Control Channel (PDCCH)), a physical uplink shared channel (Physical Uplink Shared Channel (PUSCH)), and a physical uplink control channel (Physical Uplink Control Channel (PUCCH)).

[0022] In addition, the RS related to the channel and QCL may be, for example, at least one of a Synchronization Signal Block (SSB), a Channel State Information Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), a CSI-RS for tracking (also called a Tracking Reference Signal (TRS)), and a reference signal for QCL detection (also called a QRS).

[0023] The SSB is a signal block including at least one of a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH). The SSB may be called an SS / PBCH block.

[0024] The RS of QCL type X in the TCI state may mean an RS in the relationship of a certain channel / signal (DMRS thereof) and QCL type X, and this RS may also be called the QCL source of QCL type X in the TCI state.

[0025] (PUSCH Power Control) In NR, the transmission power of the PUSCH is controlled based on the TPC command (also referred to as a value, an increment / decrement value, a correction value, etc.) indicated by the value of the field (also referred to as a TPC command field, etc.) in the DCI.

[0026] For example, when a UE transmits a PUSCH on an active UL BWP b of a carrier f of a serving cell c using a parameter set (open-loop parameter set) having an index j and an index l of a power control adjustment state (PUSCH power control adjustment state), the transmission power (P PUSCH、b,f,c (i,j,q d ,l)) [dBm] of the PUSCH at a PUSCH transmission occasion (also referred to as a transmission period or the like) i may be based on at least one of P CMAX,f,c(i) 、P O_PUSCH,b,f,c (j), M PUSCH RB,b,f,c (i), α b,f,c (j), PL b,f,c (q d ), Δ TF,b,f,c (i), f b,f,c (i,l), etc. (for example, Equation (1)).

Number

[0027] The power control adjustment state may be referred to as a value based on a TPC command of a power control adjustment state index l, a cumulative value of TPC commands, a value by closed-loop, etc. l may be referred to as a closed-loop index.

[0028] Also, the PUSCH transmission occasion 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, etc.

[0029] P CMAX,f,c(i) is, for example, the transmission power of the user terminal set for the carrier f of the serving cell c at the transmission occasion i (also referred to as the maximum transmission power, UE maximum output power, etc.).

[0030] P O_PUSCH,b,f,c(j) is, for example, a parameter related to the target reception power set for the active UL BWP b of carrier f of serving cell c in transmission opportunity i (for example, also referred to as a parameter related to transmission power offset, transmission power offset P0, target reception power parameter, etc.). P O_UE_PUSCH,b,f,c (j) is P O_NOMINAL_PUSCH,f,c (j) and P O_UE_PUSCH,b,f,c The sum of (j) and P

[0031] M PUSCH RB,b,f,c (i) is, for example, the number of resource blocks (bandwidth) allocated to PUSCH for transmission opportunity i in the active UL BWP b of carrier f of serving cell c and subcarrier spacing μ. α b,f,c (j) is a value provided by a higher layer parameter (for example, also referred to as msg3 - Alpha, p0 - PUSCH - Alpha, fractional factor, etc.).

[0032] PL b,f,c (q d ) is, for example, the index q of the reference signal (reference signal (RS), path loss reference RS, pathloss (PL) - RS, reference RS for path loss, DL - RS for path loss measurement, PUSCH - PathlossReferenceRS) for the downlink BWP associated with the active UL BWP b of carrier f of serving cell c d The path loss (path loss estimation [dB], path loss compensation) calculated at the user equipment using

[0033] When the UE is not provided with a path loss reference RS (for example, PUSCH - PathlossReferenceRS), or when the UE is not provided with an individual higher layer parameter, the UE uses the RS resources from the synchronization signal (SS) / physical broadcast channel (PBCH) block (SS block (SSB)) used to obtain the Master Information Block (MIB) to calculate PL b,f,c (q d) may be calculated.

[0034] When the UE is configured with a number of RS resource indices up to the value of the maximum number of path loss reference RSs (e.g., maxNrofPUSCH - PathlossReferenceRSs), and a set of respective RS settings for the RS resource indices by the path loss reference RS, the set of RS resource indices may include one or both of the set of SS / PBCH block indices and the set of channel state information (CSI)-reference signal (RS) resource indices. The UE may identify the RS resource index q within the set of RS resource indices d thereof.

[0035] When PUSCH transmission is scheduled by a Random Access Response (RAR) UL grant, the UE may use the same RS resource index q as for the corresponding PRACH transmission. d thereof.

[0036] When the UE is provided with a power control setting for PUSCH by a sounding reference signal (SRS) resource indicator (SRI) (e.g., SRI - PUSCH - PowerControl), and one or more values of the ID of the path loss reference RS, the mapping between the set of values for the SRI field in DCI format 0_1 and the set of ID values of the path loss reference RS may be obtained from upper layer signaling (e.g., sri - PUSCH - PowerControl - Id within SRI - PUSCH - PowerControl). The UE may determine the RS resource index q from the ID of the path loss reference RS mapped to the SRI field value in DCI format 0_1 that schedules the PUSCH d thereof.

[0037] If PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with PUCCH spatial relation information for the PUCCH resource having the lowest index for each carrier f and the active UL BWP b of the serving cell c, the UE may use the same RS resource index q as the PUCCH transmission within the said PUCCH resource. d may be used.

[0038] If PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with the spatial setting of the PUCCH transmission, or if the PUSCH transmission is scheduled by DCI format 0_1 that does not include the SRI field, or if the power control setting of the PUSCH by the SRI is not provided to the UE, the UE may use the RS resource index q having the ID of the zero path loss reference RS. d may be used.

[0039] For a PUSCH transmission configured by a configured grant configuration (e.g., ConfiguredGrantConfig), if the configured grant configuration includes a specific parameter (e.g., rrc-ConfiguredUplinkGrant), the RS resource index q may be provided to the UE by the path loss reference index (e.g., pathlossReferenceIndex) within the specific parameter. d may be provided to the UE.

[0040] For a PUSCH transmission configured by a configured grant configuration, if the configured grant configuration does not include a specific parameter, the UE may determine the RS resource index q from the value of the ID of the path loss reference RS mapped to the SRI field within the DCI format that activates the PUSCH transmission. If the DCI format does not include the SRI field, the UE may determine the RS resource index q having the ID of the zero path loss reference RS. d may be determined. d may be determined.

[0041] Δ TF,b,f,c(i) is the transmission power adjustment component (offset, transmission format compensation) for the uplink (UL) bandwidth part (BWP) b of carrier f in serving cell c.

[0042] f b,f,c (i, l) is the PUSCH power control adjustment state for the active UL BWP b of carrier f in serving cell c at transmission opportunity i. f b,f,c (i, l) is δ PUSCH,b,f,c It may be based on (i, l).

[0043] When TPC accumulation is valid, f b,f,c (i, l) is δ PUSCH,b,f,c It may be based on the cumulative value of (m, l) (for example, Equation (2)). [Number]

[0044] When TPC accumulation is invalid, f b,f,c (i, l) is δ PUSCH,b,f,c It may be (i, l) (absolute value).

[0045] If the information indicating the disablement of TPC accumulation (TPC-Accumulation) is not set (if the information indicating the disablement of TPC accumulation is not provided, if TPC accumulation is set to be valid), the UE accumulates the TPC command values and determines the transmission power based on the result of the accumulation (applies the TPC command values through accumulation).

[0046] If the information indicating the disablement of TPC accumulation (TPC-Accumulation) is set (if the information indicating the disablement of TPC accumulation is provided, if TPC accumulation is set to be invalid), the UE does not accumulate the TPC command values and determines the transmission power based on the TPC command values (applies the TPC command values without using accumulation).

[0047] δ PUSCH,b,f,c(i, l) may be a TPC command value included in DCI format 0_0 or DCI format 0_1 that schedules a PUSCH transmission opportunity i on the active UL BWP b of carrier f of serving cell c, or a TPC command value encoded by combining with other TPC commands in DCI format 2_2 having a CRC scrambled by a specific RNTI (Radio Network Temporary Identifier) (e.g., TPC-PUSCH-RNTI).

[0048] Σ m=0 C(Di)-1 δ PUCCH,b,f,c (m, l) may be the sum of TPC command values in a set D i having a cardinality C(D i ). D i may be a set of TPC command values received by the UE between K PUSCH (i - i0) - 1 symbols before the PUSCH transmission opportunity i - i0 and K PUSCH (i) symbols before the PUSCH transmission opportunity i on the active UL BWP b of carrier f of serving cell c for the PUSCH power control adjustment state l. i0 may be the smallest positive integer such that K PUSCH (i - i0) symbols before the PUSCH transmission opportunity i - i0 is earlier than K PUSCH (i) symbols before the PUSCH transmission opportunity i.

[0049] If PUSCH transmission is scheduled by DCI format 0_0 or DCI format 0_1, K PUSCH (i) may be the number of symbols in the active UL BWP b of carrier f of serving cell c after the last symbol of the corresponding PDCCH reception and before the first symbol of the PUSCH transmission. If PUSCH transmission is set by configured grant configuration information (ConfiguredGrantConfig), K PUSCH(i) is equal to the product of the number of symbols per slot N in the active UL BWP b of carrier f in serving cell c and the minimum value of the value provided by k2 in the PUSCH common configuration information (PUSCH-ConfigCommon). symb slot K may be the number of symbols. PUSCH,min The power control adjustment state may be set to have a plurality of states (e.g., two states) or a single state by a higher layer parameter. Also, when a plurality of power control adjustment states are set, one of the plurality of power control adjustment states may be identified by an index l (e.g., l ∈ {0, 1}).

[0050] (PUCCH Power Control)

[0051] In NR, the transmission power of PUCCH is controlled based on the TPC command (also referred to as value, increment / decrement value, correction value, indication value, etc.) indicated by the value of the field (also referred to as TPC command field, first field, etc.) in the DCI.

[0052] For example, using the index l of the power control adjustment state (PUCCH power control adjustment state), the transmission power P of PUCCH in the PUCCH transmission occasion (also referred to as transmission period, etc.) i for the active UL BWP b of carrier f in serving cell c (i,q PUCCH、b,f,c (i,q u ,q d ,l)) [dBm] may be based on at least one of P CMAX,f,c (i), P O_PUCCH,b,f,c (q u ), M PUCCH RB,b,f,c (i), PL b,f,c (q d ), Δ F_PUCCH (F), Δ TF,b,f,c (i), g b,f,c (i,l) (e.g., Equation (3)). [Number]

[0053] The power control adjustment state may be referred to as a value based on the TPC command of the power control adjustment state index l, the cumulative value of the TPC command, or a value by a closed loop. l may be referred to as a closed loop index.

[0054] In addition, 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, etc.

[0055] P CMAX,f,c (i) is, for example, the transmission power of the user terminal (also referred to as the maximum transmission power, UE maximum output power, etc.) set for the carrier f of the serving cell c at the transmission opportunity i. P O_PUCCH,b,f,c (q u ) is, for example, a parameter related to the target reception power set for the active UL BWP b of the carrier f of the serving cell c at the transmission opportunity i (also referred to as a parameter related to the transmission power offset, the transmission power offset P0, or a target reception power parameter, etc.).

[0056] M PUCCH RB,b,f,c (i) is, for example, the number of resource blocks (bandwidth) allocated to the PUCCH for the transmission opportunity i in the active UL BWP b of the carrier f of the serving cell c and subcarrier spacing μ. PL b,f,c (q d ) is, for example, the index q of the reference signal (path loss reference RS, pathloss(PL)-RS, path loss reference RS, path loss measurement DL-RS, PUCCH-PathlossReferenceRS) for the downlink BWP associated with the active UL BWP b of the carrier f of the serving cell c d used to calculate the path loss (path loss estimation [dB], path loss compensation) at the user terminal.

[0057] If the UE is not provided with pathloss reference RSs (pathlossReferenceRSs), or before the UE is provided with individual upper layer parameters, the UE calculates the pathloss PL using the RS resources obtained from the SS / PBCH block used by the UE to acquire the MIB. b,f,c (q d )

[0058] If the UE is provided with pathloss reference RS information (pathlossReferenceRSs within the PUCCH power control information (PUCCH-PowerControl)) and not provided with PUCCH spatial relation information (PUCCH-SpatialRelationInfo), the UE obtains the value of the reference signal in the PUCCH pathloss reference RS from the PUCCH pathloss reference RS-ID (PUCCH-PathlossReferenceRS-Id) having index 0 within the PUCCH pathloss reference RS information (PUCCH-PathlossReferenceRS). The resource of this reference signal is in either the same serving cell or, if provided, the serving cell indicated by the value of the pathloss reference linking information (pathlossReferenceLinking). The pathloss reference linking information indicates whether the UE applies the DL of either the special cell (SpCell) or the secondary cell (SCell) corresponding to this UL as the pathloss reference. The SpCell may be the primary cell (PCell) in the master cell group (MCG) or the primary secondary cell (PSCell) in the secondary cell group (SCG). The pathloss reference RS information indicates a set of reference signals (e.g., CSI-RS configuration or SS / PBCH block) used for PUCCH pathloss estimation.

[0059] Δ F_PUCCH (F) is an upper layer parameter provided for each PUCCH format. Δ TF,b,f,c(i) is the transmission power adjustment component (offset) for the uplink BWP b of carrier f in serving cell c.

[0060] g b,f,c (i, l) is a value based on the TPC command of the power control adjustment state index l of the active UL BWP of carrier f in serving cell c and transmission opportunity i (e.g., power control adjustment state, cumulative value of the TPC command, value by closed loop, PUCCH power adjustment state). For example, g b,f,c (i, l) is δ PUCCH,b,f,c It may be based on (i, l).

[0061] When TPC accumulation is effective, g b,f,c (i, l) is δ PUCCH,b,f,c It may be based on the cumulative value of (i, l) (e.g., Equation (4)).

Number

[0062] When TPC accumulation is ineffective, g b,f,c (i, l) is δ PUCCH,b,f,c (i, l) (absolute value) may be used.

[0063] Here, δ PUCCH,b,f,c (i, l) is the TPC command value, which is included in DCI format 1_0 or DCI format 1_1 detected by the UE in the PUCCH transmission opportunity i of the active UL BWP b of carrier f in serving cell c, or may be combined with other TPC commands in DCI format 2_2 having a CRC scrambled by a specific RNTI (Radio Network Temporary Identifier) (e.g., TPC-PUSCH-RNTI) and encoded.

[0064] Σ m=0 C(Ci)-1 δ PUCCH,b,f,c (m, l) is the cardinality C (Ci A set C of TPC command values having i It may be the sum of the TPC command values within C. i C is a set of TPC command values received by the UE between the K PUCCH (i - i0)-1 symbols before the PUCCH transmission opportunity i - i0 and the K PUCCH (i) symbols before the PUSCH transmission opportunity i, for the active UL BWP b of carrier f of serving cell c with respect to the PUCCH power control adjustment state l. i0 is the K PUCCH (i - i0) symbols before the PUSCH transmission opportunity i is the K PUCCH It may be the smallest positive integer that is earlier than the K

[0065] If the PUCCH transmission is in response to the detection of DCI format 1_0 or DCI format 1_1 by the UE, K PUCCH (i) may be the number of symbols in the active UL BWP b of carrier f of serving cell c, after the last symbol of the corresponding PDCCH reception and before the first symbol of the PUCCH transmission. If the PUCCH transmission is set by the configured grant configuration information (ConfiguredGrantConfig), K PUSCH (i) is the number of symbols per slot N symb slot in the active UL BWP b of carrier f of serving cell c, equal to the product of N PUCCH,min and the minimum value of the value provided by k2 in the PUSCH common configuration information (PUSCH - ConfigCommon).

[0066] If the UE provides information indicating the use of two PUCCH power control adjustment states (twoPUCCH-PC-AdjustmentStates) and PUCCH spatial relation information (PUCCH-SpatialRelationInfo), then l = {0, 1}. If the UE does not provide information indicating the use of two PUCCH power control adjustment states or PUCCH spatial relation information, l may be 0.

[0067] If the UE obtains a TPC command value from DCI format 1_0 or 1_1 and the UE provides PUCCH spatial relation information, the UE may obtain the mapping between the PUCCH spatial relation information ID (pucch-SpatialRelationInfoId) value and the closed-loop index (closedLoopIndex, power adjustment state index l) according to the index provided by the P0 ID for PUCCH (p0-PUCCH-Id within PUCCH-PowerControl within PUCCH-Config). If the UE receives an activation command including the value of the PUCCH spatial relation information ID, the UE may determine the value of the closed-loop index that provides the value of l through the link to the corresponding P0 ID for PUCCH.

[0068] If, for the active UL BWP b of carrier f of serving cell c, the UE, for the corresponding PUCCH power adjustment state l, the setting of the P O_PUCCH,b,f,c (q u ) value is provided by the upper layer, then g b,f,c (i, l) = 0, k = 0, 1,..., i. If the UE provides PUCCH spatial relation information, the UE may determine the value of l from the value of q u based on the P0 ID for PUCCH corresponding to q, the closed-loop index value corresponding to l, and the PUCCH spatial relation information associated therewith. u

[0069] q uIt may be a PUCCH P0 ID (p0-PUCCH-Id) indicating PUCCH P0 (P0-PUCCH) within the P0 set (p0-Set) for PUCCH.

[0070] If the UE is not provided with PUCCH spatial relation information (PUCCH-SpatialRelationInfo), the UE obtains the PUCCH P0 value (p0-PUCCH-Value) from the value of the PUCCH P0-ID equal to the minimum value of the PUCCH P0-ID (p0-PUCCH-Id) within the P0 set (p0-Set).

[0071] If the UE is provided with path loss reference RSs (pathlossReferenceRSs) and is not provided with PUCCH spatial relation information (PUCCH-SpatialRelationInfo), the UE obtains the value of the reference signal within the PUCCH path loss reference RS from the PUCCH path loss reference RS-ID (pucch-PathlossReferenceRS-Id) having index 0 within the PUCCH path loss reference RS. The obtained RS resource is on the primary cell or, if path loss reference linking (pathlossReferenceLinking) is provided, on the serving cell indicated by the value of the path loss reference linking.

[0072] If the UE is provided with the fact that the number of PUCCH power control adjustment states maintained by the UE is 2 (twoPUCCH-PC-AdjustmentStates) and PUCCH spatial relation information, the PUCCH power control adjustment state (closed loop) index l ∈ {0, 1}. If the UE is not provided with the fact that the number of PUCCH power control adjustment states maintained by the UE is 2 or PUCCH spatial relation information, the PUCCH power control adjustment state (closed loop) index l = 0.

[0073] That is, if the UE does not provide PUCCH spatial relation information, P0, PL-RS, and the closed-loop index are determined according to the rules. In this case, the minimum P0-ID for PUCCH is applied, the PUCCH path loss reference RS-ID = 0 is applied, and l = 0 is applied.

[0074] In the RRC information element (IE), the PUCCH power control information element (PUCCH-PowerControl) includes a set of P0 for PUCCH (p0-Set) and a set of path loss reference RSs (pathlossReferenceRSs) for PUCCH path loss reference RS (PUCCH-PathlossReferenceRS). The P0 for PUCCH includes a P0-ID for PUCCH (P0-PUCCH-Id) and a P0 value for PUCCH (p0-PUCCH-Value). The PUCCH path loss reference RS includes a PUCCH path loss reference RS-ID (PUCCH-PathlossReferenceRS-Id) and a reference signal (referenceSignal, SSB index, or NZP-CSI-RS resource ID).

[0075] (Transmission Power Control for SRS) For example, using the index l of the power control adjustment state, the transmission power (P SRS、b,f,c (i,q s ,l)) of the SRS in 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 is based on at least one of P CMAX,f,c (i), P O_SRS,b,f,c (q s ), M SRS,b,f,c (i), α SRS,b,f,c (q s ), PL b,f,c (q d ), h b,f,c (i,l) (for example, Equation (5)).

Number

[0076] The power control adjustment state may be referred to as a value based on the TPC command of the power control adjustment state index l, an accumulated value of the TPC command, or a value by a closed loop. l may be referred to as a closed loop index.

[0077] Also, the SRS transmission opportunity i is a period during which SRS is transmitted, and may be composed of, for example, one or more symbols, one or more slots, etc.

[0078] Here, P CMAX,f,c (i) is, for example, the maximum output power of the UE for carrier f of serving cell c in the SRS transmission opportunity i. P O_SRS,b,f,c (q s ) is a parameter related to the target received power provided by p0 for the active UL BWP b of carrier f of serving cell c and the SRS resource set q s (provided by the SRS-ResourceSet and SRS-ResourceSetId), and is also referred to as, for example, a parameter related to the transmission power offset, the transmission power offset P0, or a target received power parameter, etc.

[0079] M SRS,b,f,c (i) is the SRS bandwidth represented by the number of resource blocks for the SRS transmission opportunity i on the active UL BWP b of carrier f of serving cell c and subcarrier spacing μ.

[0080] α SRS,b,f,c (q s ) is provided by α (for example, alpha) for the active UL BWP b of carrier f of serving cell c and subcarrier spacing μ and the SRS resource set q s and.

[0081] PL b,f,c (q d ) is the active DL BWP of serving cell c and the SRS resource set q sand the DL path loss estimation value [dB] (path loss estimation [dB], path loss compensation) calculated by the UE using the RS resource index q d where the RS resource index q d is a path loss reference RS (path loss reference RS, pathloss(PL)-RS, DL-RS for path loss measurement, e.g., provided by pathlossReferenceRS) associated with the SRS resource set q s and is the SS / PBCH block index (e.g., ssb-Index) or the CSI-RS resource index (e.g., csi-RS-Index).

[0082] If the UE is not provided with path loss reference RSs (pathlossReferenceRSs), or before the UE is provided with individual upper layer parameters, the UE uses the RS resources obtained from the SS / PBCH block used by the UE to acquire the MIB to calculate PL b,f,c (q d ).

[0083] 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. If the setting of the SRS power control adjustment state (e.g., srs-PowerControlAdjustmentStates) indicates the same power control adjustment state for SRS transmission and PUSCH transmission, the current PUSCH power control adjustment state f b,f,c (i, l). On the other hand, if the setting of the SRS power control adjustment state indicates independent power control adjustment states for SRS transmission and PUSCH transmission, the SRS power control adjustment state h b,f,c (i) may be based on δ SRS,b,f,c (m).

[0084] When TPC accumulation is valid, h b,f,c (i) may be based on the accumulated value of δ SRS,b,f,c (m) (e.g., Equation (6)). [Number]

[0085] When TPC accumulation is invalid, h b,f,c (i) may be δ SRS,b,f,c (i) (in absolute value).

[0086] Here, δ SRS,b,f,c (m) may be a TPC command value encoded in combination with other TPC commands within a PDCCH having a DCI (e.g., DCI format 2_3). Σ m=0 C(Si)-1 δ SRS,b,f,c (m) is, on the active UL BWP b of carrier f with service cell c and subcarrier spacing μ, the sum of the TPC commands in the set S of TPC command values having a cardinality C(S SRS ) received by the UE between K SRS (i - i0) - 1 symbols before the SRS transmission opportunity i - i0 and K i (i) symbols before the SRS transmission opportunity i. Here, i0 may be the smallest positive integer such that K i (i - i0) - 1 symbols before the SRS transmission opportunity i - i0 are earlier than K SRS (i) symbols before the SRS transmission opportunity i. SRS (i) symbols before the SRS transmission opportunity i.

[0087] If SRS transmission is aperiodic, K SRS (i) may be the number of symbols in the active UL BWP b of carrier f of service cell c that are after the last symbol of the corresponding PDCCH triggering the SRS transmission and before the first symbol of the SRS transmission. If SRS transmission is semi - persistent or periodic, K SRS (i) is the number of symbols per slot N in the active UL BWP b of carrier f of service cell c symb slotand K which is equal to the product of the minimum value of the value provided by k2 in the PUSCH common configuration information (PUSCH-ConfigCommon) SRS,min It may be the number of symbols.

[0088] (Analysis) As described above, for the transmission power control of the UL signal, there is an open-loop control (PL) for determining the UL transmission power based on the measurement of the DL PL-RS b,f,c (q d ), and a closed-loop control (f b,f,c (i, l), g b,f,c (i, l), h b,f,c (i, l), h b,f,c (i)) in which the base station instructs the UE to correct the UL transmission power, and a fractional transmission power control (α b,f,c (j), α SRS,b,f,c (q s )) in which the UL transmission power increases as it gets closer to the center of the cell.

[0089] The UE may use the cumulative value of the TPC command for closed-loop control. In at least one of the following, the UE resets the cumulative value. · Update of information related to P O_UE_PUSCH (notification of upper layer parameters) · Update of information related to α

[0090] The UE may use the absolute value of the TPC command for closed-loop control. In at least one of the following, the UE resets the cumulative value. · Update of information related to P0UEPUSCH (notification of upper layer parameters)

[0091] For Msg3 PUSCH (PUSCH scheduled by the RAR UL grant, PUSCH corresponding to the RAR UL grant), the UE can increase the transmission power at a certain ratio (ramp up).

[0092] Supports both the accumulation of TPC commands and ramp-up for PUCCH.

[0093] The power control adjustment state index l for a configured grant PUSCH (PUSCH whose period is configured by a higher layer parameter (ConfiguredGrantConfig)) is set by a higher layer parameter (powerControlLoopToUse).

[0094] The power control adjustment state index l for a dynamic grant PUSCH (PUSCH dynamically scheduled by DCI) is based on the SRI field in the scheduling DCI. The mapping between the SRI and the power control adjustment state index is set by a higher layer parameter (sri-PUSCH-PowerControl).

[0095] By using closed-loop control, in addition to open-loop control, fine adjustment of the transmission power can be performed. The actual transmission power of the UE may include errors. Once the UE is on the market, the accuracy of the transmission power of individual UEs cannot be tested. It is required to dynamically adjust the transmission power according to the situation within the cell.

[0096] Power control information (e.g., power control adjustment state, closed-loop control information) is carried over only to the transmission occasion corresponding to a specific type of UL signal and the same value of the power control adjustment state index. For example, even when different types of UL signals use the same analog beam (UE transmission beam, spatial domain transmission filter), the power control information may not be carried over. In this case, there is a risk of increased overhead and increased complexity of UE processing.

[0097] Therefore, the inventors have conceived a power control method for a plurality of UL signals.

[0098] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings. The wireless communication methods according to the respective embodiments may be applied independently or in combination.

[0099] In the present disclosure, "A / B / C", "at least one of A, B, and C" may be read interchangeably. In the present disclosure, cell, serving cell, CC, carrier, BWP, DL BWP, UL BWP, active DL BWP, active UL BWP, band may be read interchangeably. In the present disclosure, index, ID, indicator, resource ID may be read interchangeably. In the present disclosure, support, control, be able to control, operate, be able to operate may be read interchangeably.

[0100] In the present disclosure, configure, activate, update, indicate, enable, specify, select may be read interchangeably.

[0101] In the present disclosure, use, determine, apply, select may be read interchangeably.

[0102] In the present disclosure, link, associate, correspond, map may be read interchangeably. In the present disclosure, allocate, assign, monitor, map may be read interchangeably.

[0103] In the present disclosure, the upper layer signaling may be any one of, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof. In the present disclosure, RRC, RRC signaling, RRC parameters, upper layer, upper layer parameters, RRC information element (IE), RRC message, may be read interchangeably with each other.

[0104] MAC signaling may use, for example, a MAC control element (MAC Control Element (MAC CE)), a MAC Protocol Data Unit (PDU), etc. The broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), a Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

[0105] In the present disclosure, MAC CE, activation / deactivation command, may be read interchangeably with each other.

[0106] In the present disclosure, beam, spatial domain filter, spatial setting, TCI state, UL TCI state, unified TCI state, unified beam, common TCI state, common beam, TCI assumption, QCL assumption, QCL parameter, spatial domain reception filter, UE spatial domain reception filter, UE reception beam, DL beam, DL reception beam, DL precoding, DL precoder, DL-RS, reference RS, target RS, RS of QCL type D of TCI state / QCL assumption, RS of QCL type A of TCI state / QCL assumption, spatial relationship, spatial domain transmission filter, UE spatial domain transmission filter, UE transmission beam, UL beam, UL transmission beam, UL precoding, UL precoder, PL-RS may be read interchangeably with each other. In the present disclosure, QCL type X-RS, DL-RS associated with QCL type X, DL-RS having QCL type X, source of DL-RS, SSB, CSI-RS, SRS may be read interchangeably with each other.

[0107] In the present disclosure, signal type, type of channel / RS, type of channel, UL signal type, PUSCH / PUCCH / SRS, one of PUSCH and PUCCH and SRS, one of PUSCH and PUCCH, UL signal, UL signal of a specific signal type using a specific beam may be read interchangeably with each other.

[0108] In the present disclosure, power control adjustment state, closed power control loop, closed loop control state may be read interchangeably with each other. In the present disclosure, power control adjustment state index, closed loop index, closed power control loop index, closed loop control state index, l may be read interchangeably with each other.

[0109] (Wireless communication method) <The first embodiment> Among a plurality of UL signals in which at least one of a channel and a beam is different, control information used for power control is shared.

[0110] The UE may receive indication information (e.g., DCI, TPC command, indication value, indication based on quality information). The UE may determine control information (e.g., power control adjustment state, cumulative value, quality information) for determining the transmission power of a plurality of UL signals based on the indication information. The UE may hold the control information for each index (e.g., l). The channel types may be different among the plurality of UL signals. The beams may be different among the plurality of UL signals. The channel and RS types may be different among the plurality of UL signals and the beams may be different among the plurality of UL signals.

[0111] In the present disclosure, control information, power control adjustment state, cumulative value, accumulated value, absolute value, quality information, indication information, TPC command, indication value may be read interchangeably with each other.

[0112] The UE may follow at least one of the following aspects 1-1 to 1-3.

[0113] 《Aspect 1-1》 When the signal types are the same and the beams are different among the plurality of UL signals, the control information used for power control is shared among the plurality of UL signals.

[0114] The plurality of UL signals may be a plurality of PUSCHs associated with different PL-RSs. In this case, the signal type corresponds to the PUSCH and the beam corresponds to the PL-RS.

[0115] The plurality of UL signals may be a plurality of PUCCHs associated with different reference RSs (e.g., reference RSs for determining spatial relationship / QCL type D assumption). In this case, the signal type corresponds to the PUCCH and the beam corresponds to the reference RS.

[0116] According to this aspect, by sharing common control information among multiple beams, the efficiency / regime of power control among multiple beams can be improved.

[0117] The common control information / indication information may include a closed-loop control cumulative value (power control adjustment state), may include a UE-specific transmission power error, may include a channel state change due to a blocking situation around the UE, etc., or may include a TPC command.

[0118] In the example of FIG. 1A, the UE determines the transmission power of the PUSCH based on the closed-loop control cumulative value and transmits the PUSCH using the beam (spatial relationship) corresponding to RS#a. Then, in the example of FIG. 1B, the base station transmits an indication of closed-loop control (e.g., a TPC command) to the UE based on the reception of the PUSCH. The UE determines the transmission power of the PUSCH using the beam (spatial relationship) corresponding to a different RS#b based on the closed-loop control cumulative value based on the indication.

[0119] The plurality of beams may correspond to a plurality of different PL-RSs (PL-RS ID), may correspond to a plurality of different SSBs (SSB index), may correspond to a plurality of different CSI-RSs (NZP-CSI-RS resource ID), may correspond to a plurality of different SRSs (SRS resource ID), or may correspond to a plurality of RSs (index) of different RS types (any of SSB, CSI-RS, SRS).

[0120] <<Aspect 1-2>> When the signal types are different and the beams are the same among a plurality of UL signals, the control information used for power control is shared among the plurality of UL signals.

[0121] The plurality of UL signals may be a PUCCH and at least one other type of UL signal. For example, the plurality of UL signals may be a PUCCH and a PUSCH, may be an SRS and a PUCCH, may be a PUCCH, a PUSCH, and an SRS, or may be an SRS and a PUSCH.

[0122] Multiple UL signals may be associated with the same PL-RS / spatial relationship / reference RS (e.g., the reference RS for the determination of the QCL type D assumption).

[0123] According to this aspect, by sharing common control information among multiple signal types, the efficiency / regime of power control among multiple signal types can be improved.

[0124] The common control information may include a closed-loop control cumulative value, may include a UE-specific transmission power error, or may include a channel condition change due to a blocking situation around the UE, etc.

[0125] In the example of Figure 2A, the UE determines the transmission power of the PUSCH based on the closed-loop control cumulative value and transmits the PUSCH using the beam (spatial relationship) corresponding to RS#a. Then, in the example of Figure 2B, the base station transmits an instruction for closed-loop control (e.g., a TPC command) to the UE based on the reception of the PUSCH. The UE determines the transmission power of the PUCCH using the beam (spatial relationship) corresponding to the same RS#a based on the closed-loop control cumulative value based on the instruction.

[0126] The same beam may correspond to the same PL-RS (PL-RS ID), may correspond to the same SSB (SSB index), may correspond to the same CSI-RS (NZP-CSI-RS resource ID), may correspond to the same SRS (SRS resource ID), or may correspond to the same RS (index) of one RS type (any of SSB, CSI-RS, SRS).

[0127] 《Aspect 1-3》 Among multiple UL signals, when the signal types are different and the beams are different, the control information used for power control is shared among the multiple UL signals.

[0128] The plurality of UL signals may be PUCCH and PUSCH, and PUCCH and PUSCH may be associated with different PL-RSs. In this case, the signal type corresponds to PUCCH and PUSCH, and the beam corresponds to the PL-RS.

[0129] The plurality of UL signals may be SRS and PUSCH, and SRS and PUSCH may be associated with different SSBs. In this case, the signal type corresponds to SRS and PUSCH, and the beam corresponds to the SSB.

[0130] According to this aspect, by sharing common control information among a plurality of signal types and a plurality of beams, the efficiency / regulation of power control among the plurality of signal types and the plurality of beams can be improved.

[0131] The common control information may include a closed-loop control cumulative value, may include a UE-specific transmission power error, or may include a channel condition change due to a blocking situation around the UE or the like.

[0132] In the example of FIG. 3A, the UE determines the transmission power of the PUSCH based on the closed-loop control cumulative value and transmits the PUSCH using the beam (spatial relationship) corresponding to RS#a. Thereafter, in the example of FIG. 3B, the base station transmits an instruction for closed-loop control (for example, a TPC command) to the UE based on the reception of the PUSCH. The UE determines the transmission power of the PUCCH using the beam (spatial relationship) corresponding to a different RS#b based on the closed-loop control cumulative value based on the instruction.

[0133] The plurality of beams may correspond to a plurality of different PL-RSs (PL-RS IDs), may correspond to a plurality of different SSBs (SSB indexes), may correspond to a plurality of different CSI-RSs (NZP-CSI-RS resource IDs), may correspond to a plurality of different SRSs (SRS resource IDs), or may correspond to a plurality of RSs (indexes) of different RS types (any one of SSB, CSI-RS, and SRS).

[0134] According to this embodiment, when at least one of the signal type and the beam is different between a plurality of UL signals, by sharing common control information between the plurality of UL signals, the efficiency / regime of power control between the plurality of UL signals can be improved.

[0135] <Second Embodiment> The control information (instruction information) may follow at least one of the following aspects 2-1 to 2-2. The first embodiment may be applied to the control information (instruction information).

[0136] <<Aspect 2-1>> The control information (instruction information) may include a power control adjustment state (closed-loop power control cumulative value), or may include an instruction for closed-loop power control (TPC command, accumulated value, absolute value).

[0137] The control information may be at least one of a closed-loop power control cumulative value for PUSCH, a closed-loop power control cumulative value for PUCCH, a closed-loop power control cumulative value for SRS, and a common closed-loop power control cumulative value.

[0138] The control information may be a closed-loop power control cumulative value for PUSCH, and the UE may consider the closed-loop power control cumulative value for PUSCH in the transmission power control of PUCCH using the same beam as that of the PUSCH (for example, FIGS. 2A and 2B). The instruction information may be a TPC command.

[0139] The UE / base station may consider the control information (instruction information) within at least one of the following consideration ranges 1 to 3 for one or more UL signals. [Consideration Range 1] X transmission opportunities. For example, the latest X transmission opportunities. For example, the latest X transmission opportunities of a specific UL signal. For example, the latest X transmission opportunities of a plurality of signal types. [Consideration Range 2] Y transmission occasions corresponding to the same beam. For example, the latest Y transmission occasions corresponding to the same beam. For example, Y transmission occasions of a specific signal type corresponding to the same beam. For example, Y transmission occasions of multiple signal types corresponding to the same beam. [Consideration Range 3] Between the slot n of the UL signal to which control information is applied and the slot n-z that is z slots back (from slot n-z to slot n).

[0140] The UE / base station may use at least one of the following calculated values 1 to 3 as the indicated value (indication information) in the closed-loop power control for one or more UL signals. The indicated value may be a TPC command value, or may be an accumulated value or an absolute value. [Calculated Value 1] The sum of the indicated values within the consideration range. [Calculated Value 2] The average of the indicated values within the consideration range. [Calculated Value 3] A value obtained by calculation based on the indicated values within the consideration range.

[0141] 《Aspect 2-2》 The control information (indication information) may include quality information, or may include an indication based on the quality information.

[0142] The control information may be quality information obtained by the base station through SRS reception. The UE may consider the quality information in the transmission power control of the PUCCH / PUSCH associated with the SRS.

[0143] The indication information may be quality information, or may be an indication based on the quality information (e.g., closed-loop control, TPC command, indication information).

[0144] The UE may receive quality information or an indication based on the quality information by means of RRC information element / MAC CE / DCI.

[0145] In the example of FIG. 4A, the UE transmits the SRS using the beam (spatial relationship) corresponding to RS#a. Then, in the example of FIG. 4B, the base station calculates the quality information of the SRS based on the reception of the SRS, and transmits an instruction (e.g., a TPC command) for closed-loop control based on the quality information to the UE. The UE determines the transmission power of the PUSCH using the beam (spatial relationship) corresponding to the same RS#a based on the closed-loop control accumulation value based on the instruction.

[0146] The control information may be the quality information of the PUCCH / PUSCH. For example, the quality information may be the HARQ-ACK for the PUCCH / PUSCH.

[0147] The UE / base station may consider the control information (instruction information) within at least one of the following consideration ranges 1 to 3 in one or more UL signals. [Consideration Range 1] X transmission opportunities. For example, the latest X transmission opportunities. For example, the latest X transmission opportunities of a specific UL signal. For example, the latest X transmission opportunities of multiple signal types. [Consideration Range 2] Y transmission opportunities corresponding to the same beam. For example, the latest Y transmission opportunities corresponding to the same beam. For example, Y transmission opportunities of a specific signal type corresponding to the same beam. For example, Y transmission opportunities of multiple signal types corresponding to the same beam. [Consideration Range 3] Between slot n of the UL signal to which the control information is applied and slot n−z traced back by z slots (from slot n−z to slot n).

[0148] The UE / base station may consider, as quality information, at least one of the following calculated values 1 to 3 in one or more UL signals. [Calculated Value 1] The sum of the quality information within the consideration range. [Calculated Value 2] The average of the quality information within the consideration range. [Calculated Value 3] A value obtained by calculation based on the quality information within the consideration range.

[0149] According to this embodiment, common control information can be appropriately considered / applied to a plurality of UL signals.

[0150] <Third Embodiment> The UE may follow at least one of the following Aspects 3-1 to 3-3 for the control information. The first / second embodiment may be applied to the control information.

[0151] 《Aspect 3-1》 In the transmission power control of the first UL signal, the UE considers (applies) the control information for the second UL signal (for example, at least one of FIGS. 1A and 1B to FIGS. 4A and 4B).

[0152] At least one of the signal type and the beam may be different between the first UL signal and the second UL signal.

[0153] As in the example of Equation 7, the UE may add the parameter A based on the control information for the second UL signal to the cumulative value of the closed-loop transmission power control of the first UL signal (PUSCH).

Equation

[0154] As in the example of Equation 8, the UE may add the parameter B based on the control information for the second UL signal to the transmission power of the first UL signal (PUSCH).

Equation

[0155] 《Aspect 3-2》 In the transmission power control of one UL signal, the UE considers (applies) the control information for a plurality of UL signals.

[0156] In the example of FIG. 5A, the UE determines the transmission power of the PUSCH based on the closed-loop control cumulative value and transmits the PUSCH. Thereafter, in the example of FIG. 5B, the base station transmits an instruction (e.g., a TPC command) of closed-loop control to the UE based on the reception of the PUSCH. The UE determines the transmission power of the PUSCH and the transmission power of the PUCCH based on the closed-loop control cumulative value based on the instruction.

[0157] 《Aspect 3-3》 In the transmission power control of a plurality of UL signals, the UE considers (applies) control information common to the plurality of UL signals. The use (name) of the control information may not be limited to the transmission power control of one of the PUSCH, PUCCH, and SRS, or may be information for the transmission power control of all or two of the PUSCH, PUCCH, and SRS, or may be information common to the transmission power control of all or two of the PUSCH, PUCCH, and SRS.

[0158] Among the plurality of UL signals, at least one of the signal type and the beam may be different.

[0159] The base station may determine control information common to the plurality of UL signals based on the reception of at least one of the plurality of UL signals and transmit the control information to the UE.

[0160] 《Instruction Information》 The instruction information may be indicated by DCI. The DCI may be UE-specific DCI or group common DCI. The group common DCI format 2_2 including the instruction information may be transmitted to one UE (specific to the UE). One TPC command in one DCI may be applied to a plurality of UL signals.

[0161] The instruction information may be indicated / notified by MAC CE.

[0162] The indication information may be set / provided by an RRC information element (upper layer parameter).

[0163] The indication information may be set / provided / instructed / notified by a combination of at least two of an RRC information element, a MAC CE, and a DCI. For example, the UE is set with the mapping (association) between the same (one) beam and a plurality of UL signals by an RRC information element, is instructed with the indication information by a MAC CE, and applies the indication information to the transmission power control of the plurality of UL signals associated with one beam based on the mapping.

[0164] According to this embodiment, the UE can appropriately determine the transmission power of one or more UL signals based on one indication information.

[0165] <Fourth Embodiment> The UE may hold / process three or more power control adjustment states (closed power control loop) for one type of UL signal (one of PUSCH, PUCCH, and SRS).

[0166] The UE may hold / process a common power control adjustment state for a plurality of types of UL signals (at least two of PUSCH, PUCCH, and SRS). The UE may apply common control information to a plurality of types of UL signals (at least two of PUSCH, PUCCH, and SRS).

[0167] The UE may hold / process three or more common power control adjustment states for a plurality of types of UL signals.

[0168] When the power control adjustment state is common to a plurality of types of UL signals, the utilization efficiency of processing / memory resources in the UE can be improved.

[0169] The number / index (l) of the power control adjustment states may be set / provided / instructed / notified by at least one of an RRC information element, a MAC CE, and a DCI.

[0170] Whether the operation of this embodiment (three or more closed-loop power control states for one UL signal type, or a common closed-loop power control state for multiple UL signal types) is applied (effective or not) may be set / provided / instructed / notified by at least one of the RRC information element, MAC CE, and DCI.

[0171] According to this embodiment, the UE can appropriately process / maintain the power control adjustment state.

[0172] <Fifth Embodiment> Higher-layer parameters (RRC information elements) / UE capabilities corresponding to at least one function (feature) in the first to fourth embodiments may be defined. The UE capability may indicate that it supports this function.

[0173] A UE with higher-layer parameters corresponding to that function set may perform that function. It may be defined that "a UE without higher-layer parameters corresponding to that function set does not perform that function."

[0174] A UE that reports a UE capability indicating that it supports that function may perform that function. It may be defined that "a UE that does not report a UE capability indicating that it supports that function does not perform that function."

[0175] If the UE reports a UE capability indicating that it supports that function and the higher-layer parameters corresponding to that function are set, the UE may perform that function. It may be defined that "if the UE does not report a UE capability indicating that it supports that function, or if the higher-layer parameters corresponding to that function are not set, the UE does not perform that function."

[0176] The UE capability may indicate whether the UE supports this function.

[0177] The UE may support all of aspects 1-1 to 1-3, or may support some of aspects 1-1 to 1-3. The UE may support only one of aspects 1-1 to 1-3, or may support only two of them.

[0178] According to this embodiment, the UE can realize the above functions while maintaining compatibility with existing specifications.

[0179] (Wireless communication system) Hereinafter, the configuration of a wireless communication system according to an embodiment of the present disclosure will be described. In this wireless communication system, communication is performed using any one or a combination of the wireless communication methods according to the above embodiments of the present disclosure.

[0180] FIG. 6 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), 5th generation mobile communication system New Radio (5G NR), or the like.

[0181] Also, the wireless communication system 1 may support dual connectivity (multi-RAT dual connectivity (MR-DC)) between a plurality of Radio Access Technologies (RATs). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), and the like.

[0182] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the Master Node (MN), and the base station (gNB) of NR is the Secondary Node (SN). In NE-DC, the base station (gNB) of NR is the MN, and the base station (eNB) of LTE (E-UTRA) is the SN.

[0183] The wireless communication system 1 may support dual connectivity between a plurality of base stations within the same RAT (for example, dual connectivity where both the MN and the SN are base stations (gNBs) of NR (NR-NR Dual Connectivity (NN-DC))).

[0184] The wireless communication system 1 may include a base station 11 that forms a relatively wide-coverage macro cell C1, and a base station 12 (12a - 12c) that is disposed within the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 may be located within at least one cell. The arrangement, number, etc. of each cell and the user terminal 20 are not limited to the modes shown in the figure. Hereinafter, when the base stations 11 and 12 are not distinguished, they are collectively referred to as the base station 10.

[0185] The user terminal 20 may be connected to at least one of the plurality of base stations 10. The user terminal 20 may utilize at least one of carrier aggregation (CA) and dual connectivity (DC) using a plurality of component carriers (CCs).

[0186] Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)). Macro cell C1 may be included in FR1, and small cell C2 may be included in FR2. For example, FR1 may be a frequency band of 6 GHz or less (sub-6 GHz), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). Note that the frequency bands, definitions, etc. of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a frequency band higher than FR2.

[0187] Also, the user terminal 20 may communicate using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) in each CC.

[0188] The plurality of base stations 10 may be connected by wire (e.g., an optical fiber compliant with Common Public Radio Interface (CPRI), an X2 interface, etc.) or wirelessly (e.g., NR communication). For example, when NR communication is used as a backhaul between base stations 11 and 12, the base station 11 corresponding to the upper-level station may be called an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) may be called an IAB node.

[0189] The base station 10 may be connected to the core network 30 via another base station 10 or directly. The core network 30 may include at least one of, for example, Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), etc.

[0190] The user terminal 20 may be a terminal corresponding to at least one of communication systems such as LTE, LTE-A, and 5G.

[0191] In the wireless communication system 1, an orthogonal frequency division multiplexing (OFDM)-based wireless access method may be used. For example, in at least one of the downlink (DL) and the uplink (UL), Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), etc. may be used.

[0192] The wireless access method may be referred to as a waveform. Note that in the wireless communication system 1, other wireless access methods (for example, other single-carrier transmission methods, other multi-carrier transmission methods) may be used for the wireless access methods of the UL and the DL.

[0193] In the wireless communication system 1, as downlink channels, a physical downlink shared channel (PDSCH) shared by each user terminal 20, a physical broadcast channel (PBCH), a physical downlink control channel (PDCCH), etc. may be used.

[0194] In the wireless communication system 1, as the uplink channel, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)), an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc., which are shared by each user terminal 20, may be used.

[0195] User data, upper layer control information, System Information Block (SIB), etc. are transmitted by PDSCH. User data, upper layer control information, etc. may be transmitted by PUSCH. Also, Master Information Block (MIB) may be transmitted by PBCH.

[0196] Lower layer control information may be transmitted by PDCCH. The lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of PDSCH and PUSCH.

[0197] Note that the DCI for scheduling PDSCH may be called DL assignment, DL DCI, etc., and the DCI for scheduling PUSCH may be called UL grant, UL DCI, etc. Note that PDSCH may be read as DL data, and PUSCH may be read as UL data.

[0198] For PDCCH detection, a control resource set (CORESET) and a search space may be used. A CORESET corresponds to the resources for searching for DCI. A search space corresponds to the search area and search method for PDCCH candidates. One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a certain search space based on the search space configuration.

[0199] 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 the "search space", "search space set", "search space configuration", "search space set configuration", "CORESET", "CORESET configuration", etc. in the present disclosure may be mutually interchangeable.

[0200] Uplink control information (UCI) including at least one of channel state information (CSI), delivery confirmation information (e.g., which may be referred to as Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR) may be transmitted by PUCCH. A random access preamble for connection establishment with the cell may be transmitted by PRACH.

[0201] Note that in the present disclosure, the downlink, uplink, etc. may be expressed without adding "link". Also, the beginning of various channels may be expressed without adding "Physical".

[0202] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. may be transmitted. In the wireless communication system 1, as the DL-RS, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc. may be transmitted.

[0203] The synchronization signal may be, for example, at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be called an SS / PBCH block, an SS Block (SSB), etc. Note that SS, SSB, etc. may also be called reference signals.

[0204] Also, in the wireless communication system 1, as the uplink reference signal (Uplink Reference Signal (UL-RS)), a sounding reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. may be transmitted. Note that DMRS may also be called a UE-specific reference signal.

[0205] (Base station) FIG. 7 is a diagram showing an example of the configuration of a base station according to an embodiment. The base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission line interface 140. Note that one or more of the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140 may be provided.

[0206] In this example, the functional blocks of the characteristic parts in the present embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. Some of the processes of each part described below may be omitted.

[0207] The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, a control circuit, etc., which are described based on the common knowledge in the technical field related to the present disclosure.

[0208] The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. 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, control information, a sequence, etc. to be transmitted as a signal, and transfer it to the transmission / reception unit 120. The control unit 110 may perform call processing (setting, release, etc.) of a communication channel, state management of the base station 10, management of radio resources, etc.

[0209] The transmission / reception unit 120 may include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transmission / reception unit 120 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, etc., which are described based on the common knowledge in the technical field related to the present disclosure.

[0210] The transmission / reception unit 120 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit. The transmission unit may be composed of a transmission processing unit 1211 and an RF unit 122. The reception unit may be composed of a reception processing unit 1212, an RF unit 122, and a measurement unit 123.

[0211] The transmission / reception antenna 130 can be composed of an antenna described based on the common understanding in the technical field related to the present disclosure, such as an array antenna.

[0212] The transmission / reception unit 120 may transmit the above-described downlink channel, synchronization signal, downlink reference signal, etc. The transmission / reception unit 120 may receive the above-described uplink channel, uplink reference signal, etc.

[0213] The transmission / reception unit 120 may form at least one of a transmission beam and a reception beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc.

[0214] The transmission / reception unit 120 (transmission processing unit 1211) may perform processing of the Packet Data Convergence Protocol (PDCP) layer, processing of the Radio Link Control (RLC) layer (e.g., RLC retransmission control), processing of the Medium Access Control (MAC) layer (e.g., HARQ retransmission control), etc. on, for example, data and control information obtained from the control unit 110, and generate a bit string to be transmitted.

[0215] The transceiver unit 120 (transmission processing unit 1211) may perform transmission processing such as channel encoding (which may include error correction encoding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, digital-to-analog conversion, etc. on the bit sequence to be transmitted, and output a baseband signal.

[0216] The transceiver unit 120 (RF unit 122) may perform modulation to the radio frequency band, filtering, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transceiver antenna 130.

[0217] On the other hand, the transceiver unit 120 (RF unit 122) may perform amplification, filtering, demodulation to the baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 130.

[0218] The transceiver unit 120 (reception processing unit 1212) may apply reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, etc. to the acquired baseband signal, and acquire user data, etc.

[0219] The transmission / reception unit 120 (measurement unit 123) may perform measurements on the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may measure received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 110.

[0220] The transmission path interface 140 may transmit and receive signals (backhaul signaling) to and from devices included in the core network 30, other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0221] Note that the transmission unit and reception unit of the base station 10 in the present disclosure may be configured by at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140.

[0222] The control unit 110 may determine control information for determining the transmission power of a plurality of uplink signals. The transmission / reception unit 120 may transmit the instruction information for the instruction of the control information. The channel type may be different among the plurality of uplink signals, or the beam may be different among the plurality of uplink signals, or the channel and the type of reference signal may be different among the plurality of uplink signals and the beam may be different among the plurality of uplink signals.

[0223] (User Terminal) FIG. 8 is a diagram showing an example of the configuration of a user terminal according to an embodiment. The user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. Note that one or more of the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may be provided.

[0224] In this example, the functional blocks of the characteristic parts in the present embodiment are mainly shown, and the user terminal 20 may be assumed to have other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.

[0225] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, a control circuit, etc., which are described based on the common knowledge in the technical field related to the present disclosure.

[0226] The control unit 210 may control signal generation, mapping, etc. 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.

[0227] The transmission / reception unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transmission / reception unit 220 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, etc., which are described based on the common knowledge in the technical field related to the present disclosure.

[0228] The transmission / reception unit 220 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit. The transmission unit may be composed of the transmission processing unit 2211 and the RF unit 222. The reception unit may be composed of the reception processing unit 2212, the RF unit 222, and the measurement unit 223.

[0229] The transmission / reception antenna 230 can be composed of an antenna described based on the common recognition in the technical field related to the present disclosure, such as an array antenna or the like.

[0230] The transmission / reception unit 220 may receive the above-described downlink channel, synchronization signal, downlink reference signal, etc. The transmission / reception unit 220 may transmit the above-described uplink channel, uplink reference signal, etc.

[0231] The transmission / reception unit 220 may form at least one of a transmission beam and a reception beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc.

[0232] The transmission / reception unit 220 (transmission processing unit 2211) may perform processing of the PDCP layer, processing of the RLC layer (e.g., RLC retransmission control), processing of the MAC layer (e.g., HARQ retransmission control), etc. on, for example, data, control information, etc. acquired from the control unit 210, and generate a bit sequence to be transmitted.

[0233] The transmission / reception unit 220 (transmission processing unit 2211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, digital-to-analog conversion, etc. on the bit sequence to be transmitted, and output a baseband signal.

[0234] Note that whether to apply DFT processing may be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when transform precoding is enabled, the transmission / reception unit 220 (transmission processing unit 2211) may perform DFT processing as the above-described transmission processing to transmit the channel using the DFT-s-OFDM waveform, or otherwise, it may not be necessary to perform DFT processing as the above-described transmission processing.

[0235] The transmission / reception unit 220 (RF unit 222) may perform modulation to a radio frequency band, filtering, amplification, etc. on the baseband signal, and transmit the signal in the radio frequency band via the transmission / reception antenna 230.

[0236] On the other hand, the transmission / reception unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, etc. on the signal in the radio frequency band received by the transmission / reception antenna 230.

[0237] The transmission / reception unit 220 (reception processing unit 2212) may apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, and acquire user data, etc.

[0238] The transmission / reception unit 220 (measurement unit 223) may perform measurements on the received signal. For example, the measurement unit 223 may perform RRM measurements, CSI measurements, etc. based on the received signal. The measurement unit 223 may measure received power (e.g., RSRP), reception quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

[0239] Note that the transmission unit and reception unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmission / reception unit 220 and the transmission / reception antenna 230.

[0240] The transmission / reception unit 220 may receive the instruction information. The control unit 210 may determine control information for determining the transmission power of a plurality of uplink signals based on the instruction information. The channel type may be different among the plurality of uplink signals, or the beams may be different among the plurality of uplink signals, or the types of channels and reference signals may be different among the plurality of uplink signals and the beams may be different among the plurality of uplink signals (First Embodiment).

[0241] The control information may be a transmission power control command value for accumulation or a value based on the quality of one of the plurality of uplink signals (Second Embodiment).

[0242] The control unit determines the transmission power of a second uplink control signal among the plurality of uplink signals based on the control information for the first uplink control signal among the plurality of uplink signals, or determines the transmission power of the plurality of uplink signals based on the control information for the first uplink control signal (Third Embodiment).

[0243] The control unit may hold three or more power control adjustment states for one of the plurality of uplink signals or a power control adjustment state common to the plurality of uplink signals (Fourth Embodiment).

[0244] (Hardware Configuration) Note that the block diagrams used in the description of the above embodiments show blocks of functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Also, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one physically or logically combined device, or two or more physically or logically separated devices may be directly or indirectly (for example, using wired, wireless, etc.) connected and realized using these multiple devices. The functional block may be realized by combining software with the above one device or the above multiple devices.

[0245] Here, functions include, but are not limited to, judgment, decision, determination, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection determination, establishment, comparison, assumption, expectation, regarded as, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating (mapping), assigning, etc. For example, a functional block (component) that enables transmission may be referred to as a transmitting unit, a transmitter, etc. In any case, as described above, the implementation method is not particularly limited.

[0246] For example, a base station, a user terminal, etc. in an embodiment of the present disclosure may function as a computer that performs the processing of the wireless communication method of the present disclosure. FIG. 9 is a diagram showing an example of the hardware configuration of a base station and a user terminal according to an embodiment. The above-described base station 10 and user terminal 20 may physically be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0247] Note that in the present disclosure, terms such as device, circuit, device, section, unit, etc. can be read interchangeably with each other. 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 including some devices.

[0248] For example, although only one processor 1001 is shown, there may be a plurality of processors. Also, the processing may be executed by one processor, or the processing may be executed by two or more processors simultaneously, sequentially, or using other methods. Note that the processor 1001 may be implemented by one or more chips.

[0249] Each function in the base station 10 and the user terminal 20 is realized, for example, by loading a predetermined software (program) onto hardware such as a processor 1001 and a memory 1002, so that the processor 1001 performs calculations, controls communication via the communication device 1004, or controls at least one of reading and writing data in the memory 1002 and the storage 1003.

[0250] The processor 1001 controls the entire computer by operating, for example, an operating system. The processor 1001 may be constituted by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, and the like. For example, at least a part of the above-described control unit 110 (210), transmission / reception unit 120 (220), etc. may be realized by the processor 1001.

[0251] Further, the processor 1001 reads a program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these. As the program, a program for causing a computer to execute at least a part of the operations described in the above embodiments is used. For example, the control unit 110 (210) may be realized by a control program stored in the memory 1002 and operating in the processor 1001, and the same may be true for other functional blocks.

[0252] The memory 1002 is a computer-readable recording medium and may be composed of, for example, at least one of Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), and other suitable storage media. The memory 1002 may be referred to as a register, cache, main memory (primary storage device), etc. The memory 1002 can store a program (program code), software module, etc. executable for implementing the wireless communication method according to an embodiment of the present disclosure.

[0253] The storage 1003 is a computer-readable recording medium and may be composed of, for example, at least one of a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (e.g., a compact disc (Compact Disc ROM (CD-ROM), etc.), a digital versatile disc, a Blu-ray (registered trademark) disc), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, a stick, a key drive), a magnetic stripe, a database, a server, and other suitable storage media. The storage 1003 may be referred to as an auxiliary storage device.

[0254] The communication device 1004 is hardware (a transceiver device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, etc. The communication device 1004 may include, for example, a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to implement at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD). For example, the above-described transceiver unit 120 (220), the transceiver antenna 130 (230), etc. may be implemented by the communication device 1004. The transceiver unit 120 (220) may be physically or logically separated and implemented by a transmitter unit 120a (220a) and a receiver unit 120b (220b).

[0255] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives an external input. The output device 1006 is an output device (e.g., a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that performs an output to the outside. Note that the input device 1005 and the output device 1006 may have an integrated configuration (e.g., a touch panel).

[0256] Also, each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus or may be configured using different buses for each device.

[0257] In addition, the base station 10 and the user terminal 20 may be configured to include hardware such as a microprocessor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), and a Field Programmable Gate Array (FPGA), and some or all of the functional blocks may be realized using the hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0258] (Modified Example) Regarding the terms described in this disclosure and the terms necessary for understanding this disclosure, they may be replaced with terms having the same or similar meanings. For example, channel, symbol, and signal (signal or signaling) may be read interchangeably with each other. Also, a signal may be a message. A reference signal may also be abbreviated as RS and may be called a Pilot, a pilot signal, etc. depending on the applicable standard. Also, a Component Carrier (CC) may be called a cell, a frequency carrier, a carrier frequency, etc.

[0259] A radio frame may be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting the radio frame may be called a subframe. Further, a subframe may be composed of one or more slots in the time domain. The subframe may have a fixed time length (e.g., 1 ms) independent of numerology.

[0260] Here, the new numerology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel. The new numerology may indicate, for example, at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, specific filtering process performed by a transceiver in the frequency domain, specific windowing process performed by a transceiver in the time domain, and the like.

[0261] A slot may be composed of one or more symbols (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. Also, a slot may be a time unit based on the new numerology.

[0262] A slot may include a plurality of mini-slots. Each mini-slot may be composed of one or more symbols in the time domain. Also, a mini-slot may be called a sub-slot. A mini-slot may be composed of a smaller number of symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may be called a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may be called a PDSCH (PUSCH) mapping type B.

[0263] A radio frame, sub-frame, slot, mini-slot, and symbol all represent time units for signal transmission. Different names may be used for the radio frame, sub-frame, slot, mini-slot, and symbol respectively. Note that the time units such as frame, sub-frame, slot, mini-slot, and symbol in this disclosure may be read interchangeably with each other.

[0264] For example, one sub-frame may be called a TTI, or a plurality of consecutive sub-frames may be called a TTI, or one slot or one mini-slot may be called a TTI. That is, at least one of the sub-frame and the TTI may be the sub-frame (1 ms) in the existing LTE, or a period shorter than 1 ms (for example, 1 - 13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, mini-slot, etc. instead of a sub-frame.

[0265] Here, the TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in an LTE system, the base station performs scheduling to allocate radio resources (such as the frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. Note that the definition of the TTI is not limited to this.

[0266] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), code block, codeword, etc., or may be a processing unit for scheduling, link adaptation, etc. Note that when the TTI is given, the time interval (for example, the number of symbols) in which the transport block, code block, codeword, etc. are actually mapped may be shorter than the TTI.

[0267] In addition, when one slot or one mini-slot is called a TTI, one or more TTIs (i.e., one or more slots or one or more mini-slots) may be the minimum time unit for scheduling. Also, the number of slots (number of mini-slots) constituting the minimum time unit for the scheduling may be controlled.

[0268] A TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, etc. A TTI shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini-slot, a sub-slot, a slot, etc.

[0269] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be read as a TTI having a time length exceeding 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be read as a TTI having a TTI length less than that of the long TTI and equal to or more than 1 ms.

[0270] A resource block (Resource Block (RB)) is a resource allocation unit in the time domain and the frequency domain, and in the frequency domain, it may include one or a plurality of consecutive subcarriers. The number of subcarriers included in the RB may be the same regardless of the numerology, for example, it may be 12. The number of subcarriers included in the RB may be determined based on the numerology.

[0271] In addition, the RB may include one or a plurality of symbols in the time domain, and may have a length of one slot, one mini-slot, one subframe, or one TTI. One TTI, one subframe, etc. may each be constituted by one or a plurality of resource blocks.

[0272] One or more RBs may also be referred to as Physical Resource Blocks (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0273] Also, a resource block may be composed of one or more Resource Elements (REs). For example, 1 RE may be a radio resource region of 1 sub-carrier and 1 symbol.

[0274] A Bandwidth Part (BWP) (which may also be referred to as a partial bandwidth, etc.) may represent a subset of consecutive common resource blocks (common RBs) for a certain numerology in a certain carrier. Here, the common RB may be specified by the index of the RB based on the common reference point of the carrier. A PRB is defined in a certain BWP and may be numbered within the BWP.

[0275] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). One or more BWPs may be set within one carrier for a UE.

[0276] At least one of the set BWPs may be active, and it may not be assumed that the UE transmits and receives a predetermined signal / channel outside the active BWP. Note that "cell", "carrier", etc. in the present disclosure may be read as "BWP".

[0277] Note that the structures such as the above-mentioned radio frames, sub-frames, slots, mini-slots, and symbols are merely examples. For example, the number of sub-frames included in a radio frame, the number of slots per sub-frame or radio frame, the number of mini-slots included in a slot, the number of symbols and RBs included in a slot or mini-slot, the number of sub-carriers included in an RB, and the number of symbols, symbol length, cyclic prefix (CP) length, etc. within a TTI can be variously changed.

[0278] Also, the information, parameters, etc. described in this disclosure may be represented using absolute values, relative values from a predetermined value, or corresponding other information. For example, a radio resource may be indicated by a predetermined index.

[0279] The names used for parameters, etc. in this disclosure are not limiting names in any way. Furthermore, mathematical formulas, etc. using these parameters may be different from those explicitly disclosed in this disclosure. Since various channels (such as PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, the various names assigned to these various channels and information elements are not limiting names in any way.

[0280] The information, signals, etc. described in this disclosure may be represented using any of various different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0281] Also, information, signals, etc. can be output at least one of from the upper layer to the lower layer and from the lower layer to the upper layer. Information, signals, etc. may be input and output via a plurality of network nodes.

[0282] The input / output information, signals, etc. may be stored in a specific location (e.g., memory) or may be managed using a management table. The information, signals, etc. to be input / output may be overwritten, updated, or appended. The output information, signals, etc. may be deleted. The input information, signals, etc. may be transmitted to other devices.

[0283] The notification of information is not limited to the aspects / embodiments described in this disclosure and may be performed using other methods. For example, the notification of information in this disclosure may be implemented by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0284] Note that physical layer signaling may also be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. Also, RRC signaling may be referred to as an RRC message and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc. Further, MAC signaling may be notified using, for example, a MAC Control Element (CE).

[0285] Also, the notification of predetermined information (e.g., the notification of "being X") is not limited to an explicit notification and may be performed implicitly (e.g., by not performing the notification of the predetermined information or by the notification of another piece of information).

[0286] The determination may be made based on a value represented by one bit (either 0 or 1), a boolean value represented by true or false, or a numerical comparison (e.g., comparison with a predetermined value).

[0287] Software should be broadly interpreted to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc., whether called software, firmware, middleware, microcode, a hardware description language, or by some other name.

[0288] Also, software, instructions, information, etc. may be transmitted and received via a transmission medium. For example, when software is transmitted from a website, server, or other remote source using at least one of wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technologies (such as infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of the transmission medium.

[0289] The terms "system" and "network" used in this disclosure may be used interchangeably. "Network" may mean the devices (e.g., base stations) included in the network.

[0290] In the present disclosure, terms such as "precoding", "precoder", "weight (precoding weight)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", "panel", etc. can be used interchangeably.

[0291] In the present disclosure, terms such as "Base Station (BS)", "radio base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "panel", "cell", "sector", "cell group", "carrier", "component carrier", etc. can be used interchangeably. The base station may also be referred to by terms such as macro cell, small cell, femto cell, pico cell, etc.

[0292] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The term "cell" or "sector" refers to part or all of the coverage area of at least one of the base station and the base station subsystem that provides communication services in this coverage.

[0293] In the present disclosure, terms such as "Mobile Station (MS)", "user terminal", "User Equipment (UE)", and "terminal" can be used interchangeably.

[0294] A mobile station may also be called a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate term.

[0295] At least one of the base station and the mobile station may also be called a transmitting device, a receiving device, a wireless communication device, etc. Note that at least one of the base station and the mobile station may be a device mounted on a moving body, the moving body itself, etc. The moving body may be a vehicle (e.g., a car, an airplane, etc.), a moving body that moves without a driver (e.g., a drone, an autonomous vehicle, etc.), or a robot (humanoid or non-humanoid). Note that at least one of the base station and the mobile station also includes a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0296] In addition, the base station in the present disclosure may be replaced by a user terminal. For example, for a configuration in which communication between the base station and the user terminal is replaced by communication between a plurality of user terminals (which may be referred to as, for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.), each aspect / embodiment of the present disclosure may be applied. In this case, the functions of the above-described base station 10 may be configured as functions of the user terminal 20. Also, terms such as "uplink" and "downlink" may be replaced with terms corresponding to communication between terminals (for example, "sidelink"). For example, the uplink channel, downlink channel, etc. may be replaced with the sidelink channel.

[0297] Similarly, the user terminal in the present disclosure may be replaced by a base station. In this case, the functions of the above-described user terminal 20 may be configured as functions of the base station 10.

[0298] In the present disclosure, operations assumed to be performed by the base station may, in some cases, be performed by its upper node. In a network including one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal can be performed by the base station, one or more network nodes other than the base station (for example, Mobility Management Entity (MME), Serving-Gateway (S-GW), etc., but not limited thereto), or a combination thereof.

[0299] Each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched and used during 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, for the methods described in the present disclosure, the elements of various steps are presented using an exemplary order and are not limited to the specific order presented.

[0300] Each aspect / embodiment described in the present disclosure may be applicable to systems using Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (x is, for example, an integer or a decimal), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), other suitable wireless communication methods, and next-generation systems extended based on these. Further, a combination of multiple systems (for example, a combination of LTE or LTE-A and 5G) may be applicable.

[0301] The description "based on" used in the present disclosure does not mean "only based on" unless otherwise specified. In other words, the description "based on" means both "only based on" and "at least based on".

[0302] Any reference to an element using terms such as "first", "second", etc. used in this disclosure does not generally limit the quantity or order of those elements. These terms can be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, a reference to a first and a second element does not mean that only two elements can be employed or that the first element must precede the second element in any way.

[0303] The term "determining" as used in this disclosure may encompass a wide variety of operations. For example, "determining" may be considered to be "judging", "calculating", "computing", "processing", "deriving", "investigating", "looking up, search, inquiry" (e.g., searching in a table, database, or another data structure), "ascertaining", etc.

[0304] Also, "determining" may be considered to be "receiving" (e.g., receiving information), "transmitting" (e.g., transmitting information), "input", "output", "accessing" (e.g., accessing data in memory), etc.

[0305] Also, "determining" may be considered to be "resolving", "selecting", "choosing", "establishing", "comparing", etc. That is, "determining" may be considered to be "determining" any operation.

[0306] Also, "judgment (decision)" may be read as "assuming", "expecting", "considering", etc.

[0307] The "maximum transmit power" described in the present disclosure may mean the maximum value of the transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0308] As used in the present disclosure, the terms "connected" and "coupled", or any variations thereof, mean any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "accessed".

[0309] In the present disclosure, when two elements are connected, it can be considered that they are "connected" or "coupled" to each other using one or more wires, cables, printed electrical connections, etc., and, as some non-limiting and non-exhaustive examples, electromagnetic energy having wavelengths in the radio frequency region, microwave region, optical (both visible and invisible) region, etc.

[0310] In the present disclosure, the term "A and B are different" may mean that "A and B are different from each other". Note that the term may also mean that "A and B are each different from C". Terms such as "separate" and "coupled" may also be interpreted in the same way as "different".

[0311] In the present disclosure, when the terms "include", "including" and their variants are used, these terms are intended to be inclusive in the same manner as the term "comprising". Further, the term "or" used in the present disclosure is not intended to be an exclusive disjunction.

[0312] In the present disclosure, for example, when articles are added by translation, such as a, an and the in English, the present disclosure may include that the nouns following these articles are in the plural form.

[0313] As described above, the invention according to the present disclosure has been described in detail. However, it is obvious to those skilled in the art that the invention according to the present disclosure is not limited to the embodiments described in the present disclosure. The invention according to the present disclosure can be implemented in modified and changed forms without departing from the spirit and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is for illustrative purposes and does not impose any limiting meaning on the invention according to the present disclosure.

Claims

1. A receiving unit that receives indication information related to a first uplink signal; a control unit that determines control information for determining a transmission power of the first uplink signal based on the instruction information, the control unit determines a transmission power of a second uplink signal based on the control information, or determines transmission powers of the first uplink signal and the second uplink signal based on the control information; A terminal, wherein the first uplink signal and the second uplink signal have different types of channels and reference signals and different beams.

2. The terminal according to claim 1 , wherein the instruction information is included in downlink control information (DCI).

3. The terminal of claim 1 , wherein the instruction information is a transmission power control command value for accumulation or a value based on a quality of the first uplink signal.

4. receiving an indication of a first uplink signal; determining control information for determining a transmission power of the first uplink signal based on the instruction information; determining a transmission power of a second uplink signal based on the control information, or determining a transmission power of the first uplink signal and the second uplink signal based on the control information; A wireless communication method for a terminal, wherein the first uplink signal and the second uplink signal have different types of channels and reference signals and different beams.

5. A transmitter that transmits instruction information related to the first uplink signal; a receiving unit that determines control information for determining a transmission power of the first uplink signal based on the instruction information, and determines a transmission power of a second uplink signal based on the control information, or receives at least the second uplink signal from a terminal that determines the transmission powers of the first uplink signal and the second uplink signal based on the control information, A base station, wherein the first uplink signal and the second uplink signal have different types of channels and reference signals and different beams.

6. A system comprising the terminal according to claim 1 and a base station, The base station has a transmitting unit that transmits the instruction information.

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