Terminals, wireless communication methods, base stations and systems

Abstract

A terminal according to an aspect of the present disclosure includes: a reception unit that receives a setting pertaining to a transmission configuration indication (TCI) state applicable to a plurality of signals and a first physical uplink control channel (PUCCH) transmission power parameter associated with the TCI state indicated by absolute power; and a control unit that carries out PUCCH transmission power control on the basis of the first PUCCH transmission power parameter. According to an aspect of the present disclosure, the power of an UL signal can be controlled appropriately.

Description

Terminal, wireless communication method and base station

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

[0002] Long Term Evolution (LTE) has been specified for the Universal Mobile Telecommunications System (UMTS) network with the aim of achieving higher data rates and lower latency (Non-Patent Document 1). Also, LTE-Advanced (3GPP Rel. 10-14) has been specified with the aim of achieving higher capacity and more advanced features than LTE (Third Generation Partnership Project (3GPP (registered trademark)) Release (Rel.) 8, 9).

[0003] Successor systems to LTE (e.g., 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 or later, etc.) are also being considered.

[0004] 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)”, April 2010

[0005] In future wireless communication systems (e.g., NR), it is being considered that user terminals (terminals, user terminals, User Equipment (UE)) will control transmission and reception processing based on information regarding quasi-co-location (QCL) (QCL assumptions / Transmission Configuration Indication (TCI) state / spatial relationship).

[0006] It is being considered to apply the set / activated / instructed TCI state to multiple types of signals (channels / RS). However, in this case, there are cases where the transmission power control method for the UL channel / signal (which may simply be called the UL signal) is not clear. If this method is not clear, it may lead to a deterioration in communication quality, a decrease in throughput, etc.

[0007] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station that appropriately control the power of an UL signal.

[0008] A terminal according to one aspect of the present disclosure includes a receiving unit that receives a setting related to a Transmission Configuration Indication (TCI) state applicable to a plurality of signals and a first Physical Uplink Control Channel (PUCCH) transmit power parameter associated with the TCI state indicated by absolute power, and a control unit that performs transmit power control of the PUCCH based on the first PUCCH transmit power parameter.

[0009] According to one aspect of the present disclosure, the power of the UL signal can be appropriately controlled.

[0010] Fig. 1 shows an example of an SRS resource set configuration information element. Fig. 2 shows an example of an SRS resource configuration information element. Fig. 3 shows an example of association of parameters related to SRS. Fig. 4 shows an example of an SRS frequency hopping band. Fig. 5 shows an example of SRS frequency hopping. Fig. 6 shows another example of SRS frequency hopping. Fig. 7 shows the number of transmission combs K in Rel. 16. TC and the maximum number of cyclic shifts of SRS, n SRS CS,max 8 shows an example of a table showing the relationship between the number of ports N of the SRS. ap SRS When is 2, the number of combs sent is K TC and the SRS cyclic shift value n SRS CS,i 9 shows an example of a table showing the number of ports N of the SRS. ap SRS When is 4, the number of combs sent is K TCand the SRS cyclic shift value n SRS CS,i 10A and 10B show an example of a unified / common TCI framework. FIGS. 11A and 11B show an example of a DCI-based TCI status indication. FIG. 12 is a diagram showing an example of RRC parameters for UL power control. FIG. 13 is a diagram showing an example of transmit power parameters according to option 1-1. FIG. 14 is a diagram showing an example of transmit power parameters according to option 1-2. FIG. 15 is a diagram showing an example of transmit power parameters according to option 1-3. FIG. 16 is a diagram showing an example of transmit power parameters according to option 1-4. FIG. 17 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment. FIG. 18 is a diagram showing an example of a configuration of a base station according to an embodiment. FIG. 19 is a diagram showing an example of a configuration of a user terminal according to an embodiment. FIG. 20 is a diagram showing an example of hardware configurations of a base station and a user terminal according to an embodiment. FIG. 21 is a diagram showing an example of a vehicle according to an embodiment.

[0011] (SRS) In NR, the use of the sounding reference signal (SRS) is diverse. NR's SRS is not only used for CSI measurement of the uplink (UL) used in the existing LTE (LTE Rel. 8-14), but also for CSI measurement of the downlink (DL), beam management, etc. It is also used.

[0012] A UE may be configured with one or more SRS resources, which may be identified by an SRS Resource Index (SRI).

[0013] Each SRS resource may have (correspond to) one or more SRS ports, for example, the number of ports per SRS may be 1, 2, 4, etc.

[0014] A UE may be configured with one or more SRS resource sets. One SRS resource set may be associated with a predetermined number of SRS resources. The UE may share higher layer parameters for the SRS resources included in one SRS resource set. Note that the term "resource set" in the present disclosure may be interpreted as a set, a resource group, a group, or the like.

[0015] Information regarding the SRS resource or resource set may be configured in the UE using higher layer signaling, physical layer signaling, or a combination thereof.

[0016] The SRS configuration information element (for example, the RRC information element "SRS-Config") may include an SRS resource set configuration information element (FIG. 1), an SRS resource configuration information element (FIG. 2), and the like.

[0017] The SRS resource set configuration information element (e.g., the RRC parameter "SRS-ResourceSet") may include an SRS resource set ID (Identifier) ​​(SRS-ResourceSetId), a list of SRS resource IDs (SRS-ResourceId) used in the resource set, an SRS resource type (resourceType), and information on SRS usage.

[0018] Here, the SRS resource type may indicate the time domain behavior of the SRS resource configuration, and may indicate any of periodic SRS (P-SRS), semi-persistent SRS (SP-SRS), and aperiodic SRS (A(AP)-SRS). Note that the UE may transmit P-SRS and SP-SRS periodically (or periodically after activation). The UE may transmit A-SRS based on an SRS request in the DCI.

[0019] Furthermore, the use of the SRS ("usage" of the RRC parameter, "SRS-SetUse" of the L1 (Layer-1) parameter) may be, for example, beam management, codebook (CB), non-codebook (NCB), antenna switching, etc. For example, the SRS for codebook or non-codebook use may be used to determine a precoder for codebook-based or non-codebook-based uplink shared channel (Physical Uplink Shared Channel (PUSCH)) transmission based on the SRI.

[0020] The beam management SRS may be assumed to be transmitted at a given time instant only once for each SRS resource set, and multiple SRS resources in the same Bandwidth Part (BWP) that have the same time domain behavior may be transmitted simultaneously if they belong to different SRS resource sets.

[0021] The SRS resource configuration information element (e.g., the RRC parameter "SRS-Resource") may include an SRS resource ID (SRS-ResourceId), the number of SRS ports, the SRS port number, the number of transmission combs, SRS resource mapping (e.g., time and / or frequency resource position, resource offset, resource period, number of repetitions, number of SRS symbols, SRS bandwidth, etc.), hopping-related information, an SRS resource type, a sequence ID, spatial relationship information, etc.

[0022] The value of the transmission comb number (transmissionComb) is {2,4}. The number of SRS ports (nrofSRS-Ports) N ap SRS The value of is {1,2,4}. Antenna port number p i The value of is {1000, 1001, ...}. The number of consecutive OFDM symbols for SRS (nrofSymbols) N symb SRSThe value of is {1,2,4}. The offset in symbols, l, counting backward in the time domain from the end of the slot to the start position in the time domain (startPosition). offset is {0,1,...5} and the starting position is l0=N symb slot -1-l offset is given by

[0023] The setting of the number of combs to be transmitted may include a comb offset and a cyclic shift (CS index, CS number).

[0024] comb offset (subcarrier offset) = {0,1,...K TC −1} and CS may be multiplexed using the same number of transmission combs, the same RB, and the same symbol.

[0025] The UE may switch the Bandwidth Part (BWP) for transmitting the SRS for each slot, or may switch the antenna, and may apply at least one of intra-slot hopping and inter-slot hopping to the SRS transmission.

[0026] In the existing SRS, p i Frequency domain starting position k0 for (p_i) p_i is given by the following formula: k0 p_i =k - 0 p_i +Σ b=0 BSRS K TC M SC,b SRS n b

[0027] where k - denotes the variable k with an overline, and may also be called k-bar. - 0 p_i is comb offset K - TC It may be based on K TC is the number of combs sent. M SC,b SRSis the SRS bandwidth m SRS,b n is the number of subcarriers used for SRS transmission within [RB]. b is a constant.

[0028] (SRS Antenna Switching) In Rel. 15 NR, as described above, antenna switching (which may also be called antenna port switching) can be configured as an application of SRS. SRS antenna switching may be used, for example, when downlink CSI acquisition is performed using uplink SRS in a Time Division Duplex (TDD) band.

[0029] For example, for UEs capable of having fewer antenna ports available for transmission than for reception, UL SRS measurements may be used to determine the DL precoder.

[0030] The UE may report UE capability information (e.g., an RRC parameter "supportedSRS-TxPortSwitch") indicating a supported SRS transmit port switching pattern to the network. This pattern may be expressed in the form of "txry", e.g., "t1r2", "t2r4", etc., which may mean that SRS can be transmitted using x antenna ports out of a total of y antennas (which may be expressed as xTyR), where y may correspond to all or a subset of the UE's receive antennas.

[0031] For example, a 2T4R (two transmit ports, four receive ports) UE may be configured with an SRS resource set for DL ​​CSI acquisition, which includes two SRS resources each with two ports and whose purpose is antenna switching.

[0032] When x and y in "txry" have the same value, it may be written as xT=xR (for example, 4T=4R).

[0033] (Multi-port SRS Transmission) Multi-port SRS transmission will now be described. When transmitting SRS via multiple ports, the UE performs multiplexing using cyclic shifts of the base sequence. The following equation is used to express the SRS multiplexing for the antenna port P i Cyclic shift α in i Shows.

[0034] This formula is being considered for use in Rel. 17. In this formula, the number of ports, N ap SRS = 4 and maximum number of cyclic shifts n SRS CS,max The case where K = 6 is called Case 1, and the case where K = 6 is called Case 2. TC becomes 8.

[0035] Figure 3 shows the number of transmitted combs K in Rel. 16. TC and the maximum number of cyclic shifts of SRS, n SRS CS,max This is a table showing the relationship between n SRS CS,max ∈{0,1,…,n SRS CS,max}, N ap SRS ∈{1, 2, 4}. Figure 4 shows the number of ports of the SRS, N ap SRS When is 2, the number of combs sent is K TC and the SRS cyclic shift value n SRS CS,i 5 is a table showing the number of ports N of the SRS. ap SRS When is 4, the number of combs sent is K TC and the SRS cyclic shift value n SRS CS,i 1 is a table showing the above.

[0036] The following equation is the resource start position k0 in the frequency direction. p_i Shows.

[0037] This formula is being considered for use in Rel. 17. Note that k -TC p_i The first case, A, corresponds to the odd-numbered ports {1001, 1003} when the number of combs sent is 8. The second case, B, corresponds to the above-average cyclic shift value (n ap CS =∈{n SRS CS,max / 2,…,n SRS CS,max})) The third case C is the other case.

[0038] nshift is set by the parameter freqDomainShift of the SRS resource configuration information element (Fig. 2). - TC For K, the combOffset of the SRS resource configuration information element is used. TC is set by the transmissionComb of the SRS resource configuration information element. That is, in case C, the value of the RRC parameter is applied as is.

[0039] FIG. 6 shows the number of ports of the SRS, N ap SRS When is 2, the resource start position k in the frequency direction TC p_i In this example, case C is used. Figure 7 shows the number of ports N ap SRS When k is 4, the resource start position k0 in the frequency direction p_i In this example, the first and third lines ((n SRS CS )={0,1,2,3}or{0,1,2,3,4,5}), case C is applied, and the second and fourth lines ((n SRS CS )={4,5,6,7}or{6,7,8,9,10,11}), Case B is applied, and in the 5th line (K TC (n SRS CS,max ) = 8(6)), Case A applies.

[0040] FIG. 8 shows the SRS allocation for each port when the number of transmission combs is 4. In this example, case C is used for ports #0 and #2, and case B is used for ports #1 and #3. Also, different cyclic shifts are used for each port. In FIG. 8, the horizontal axis represents time and the vertical axis represents frequency. The same applies to other diagrams showing SRS allocation.

[0041] 9 shows the SRS allocation for each port when the number of transmission combs is 2. In this example, ports #0 and #1 use case C. Also, different cyclic shifts are used for each port.

[0042] (Base Sequence) The base sequence of the SRS is given by the following equation:

[0043] At least one of sequence hopping and group hopping for the low PAPR sequence may be configured by RRC. - u,v (n) is divided into multiple groups. - denotes a variable with an overline over r, which may also be called r-bar. u={0,1,...,29} denotes the group number, and v denotes the base sequence number within the group. Each group has length mm ZC =N sc RB / 2 δ , 1 / 2≦m / 2 δ One base sequence (v=0) ≦5 and length mM ZC =N sc RB / 2 δ , 6≦m / 2 δ The base sequence r - u,v (0),...,r - u,v (M ZC -1) is defined as the sequence length M ZC Depends on.

[0044] In group hopping, the group number u is ID SRSand the symbol number in the radio frame for the SRS resource, given by:

[0045] The symbol number is the slot number n in the radio frame. s,f μ and the number of symbols in the slot, N symb slot and the starting symbol l0 for that SRS resource and the SRS symbol number l'∈{0,1,...,N symb SRS -1} and n by the upper layer parameter sequenceId in the SRS-Resource IE. ID SRS ∈{0,1,...,1023}, or n by the upper layer parameter sequenceId in the SRS-PosResource-r16 IE. ID SRS ∈{0,1,...,65535} is given.

[0046] If groupOrSequenceHopping is equal to 'neither', then neither group hopping nor sequence hopping is used. In this case, the group number u and sequence number v are given by:

[0047] If groupOrSequenceHopping is equal to 'groupHopping', group hopping is used and sequence hopping is not used. In this case, the group number u and sequence number v are given by: Here, at the beginning of each radio frame, the pseudo-random sequence c(i) is init =n ID SRS It is initialized by

[0048] If groupOrSequenceHopping is equal to 'sequenceHopping', sequence hopping is used and group hopping is not used. In this case, the group number u and sequence number v are given by: Here, at the beginning of each radio frame, the pseudo-random sequence c(i) is init =n ID SRS It is initialized by

[0049] (SRS Transmission Power Control) Using the index l of the power control adjustment state (closed-loop state), the SRS transmission power (P ＳＲＳ、ｂ，ｆ，ｃ (i, q ｓ , l)) is P ＣＭＡＸ，ｆ，ｃ (i), P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ), M ＳＲＳ，ｂ，ｆ，ｃ (i), α ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ), P.L. ｂ，ｆ，ｃ (q ｄ ), h ｂ，ｆ，ｃ Based on (i, l), it is given by:

[0050] Furthermore, the SRS transmission opportunity i is a period during which the SRS is transmitted, and may be composed of, for example, one or more symbols, one or more slots, or the like.

[0051] Here, P ＣＭＡＸ，ｆ，ｃ (i) is, for example, the UE maximum output power for carrier f of serving cell c at SRS transmission opportunity i. P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) is the active UL BWP b of carrier f of serving cell c and the SRS resource set q ｓ (provided by SRS-ResourceSet and SRS-ResourceSetId), and a parameter related to the target received power provided by p0 for (for example, a parameter related to the transmit power offset, also referred to as the transmit power offset P0 or the target received power parameter, etc.).

[0052] M ＳＲＳ，ｂ，ｆ，ｃ(i) is the SRS bandwidth in number of resource blocks for SRS transmission opportunity i on active UL BWP b of carrier f of serving cell c and subcarrier spacing μ;

[0053] α ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) is the active UL BWP b of a serving cell c and carrier f with subcarrier spacing μ and an SRS resource set q ｓ and α (e.g., alpha) for α (e.g., alpha) may be defined as a path loss compensation factor for UL power control.

[0054] PL ｂ，ｆ，ｃ (q ｄ ) is the active DL BWP of serving cell c and the SRS resource set q ｓ and, for RS resource index q ｄ is the DL path loss estimate [dB] (path loss estimate [dB], path loss compensation) calculated by the UE using the RS resource index q ｄ is the SRS resource set q ｓ and a pathloss reference RS (pathloss reference RS, pathloss (PL)-RS, DL-RS for pathloss measurement, e.g., provided by pathlossReferenceRS) associated with the SS / PBCH block index (e.g., ssb-Index) or a CSI-RS resource index (e.g., csi-RS-Index).

[0055] If the UE is not provided with pathloss reference RSs (pathlossReferenceRSs) or before the UE is provided with individual upper layer parameters, the UE may use RS resources obtained from the SS / PBCH block used by the UE to acquire the MIB. ｂ，ｆ，ｃ (q ｄ ) is calculated.

[0056] 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 SRS power control adjustment state configuration (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 On the other hand, when 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) is δ ＳＲＳ，ｂ，ｆ，ｃ It may be based on (m).

[0057] If TPC accumulation is valid, h ｂ，ｆ，ｃ (i) is δ ＳＲＳ，ｂ，ｆ，ｃ It may be based on the cumulative value of (m).

[0058] If TPC accumulation is invalid, h ｂ，ｆ，ｃ (i) is δ ＳＲＳ，ｂ，ｆ，ｃ (i) (absolute value) may also be used.

[0059] where δ ＳＲＳ，ｂ，ｆ，ｃ (m) may be a TPC command value that is jointly coded with other TPC commands in a PDCCH having DCI (e.g., DCI format 2_3). m=0 C(Si)-1 δ SRS,b,f,c (m) is the SRS transmission opportunity i-i on the active UL BWP b of carrier f with serving cell c and subcarrier spacing μ. ０ K ＳＲＳ (i-i ０ )-1 symbol before and K ＳＲＳ (i) The cardinality C(S ｉ ) a set S of TPC command values ｉ may be the sum of the TPC commands in ０ is the SRS transmission opportunity i-i ０ K ＳＲＳ (i-i ０ )-1 symbols before is K ＳＲＳ(i) It may be the smallest positive integer that is earlier than the symbol before.

[0060] If the SRS transmission is aperiodic, K SRS (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 that triggers the SRS transmission and before the first symbol of the SRS transmission. If the 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 serving cell c symb slot and the minimum value of the value provided by k2 in the PUSCH common configuration information (PUSCH-ConfigCommon). SRS,min It may also be the number of symbols.

[0061] (PUSCH transmission power control) In NR, the transmission power of the PUSCH is controlled based on the TPC command (also called a value, an increase / decrease value, a correction value, etc.) indicated by the value of a field in the DCI (also called a TPC command field, etc.).

[0062] 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) with index j and a power control adjustment state (PUSCH power control adjustment state) with index l, the transmission power (P ＰＵＳＣＨ、ｂ，ｆ，ｃ (i, j, q ｄ , l)) [dBm] is expressed as follows: ＣＭＡＸ，ｆ，ｃ（ｉ） , P Ｏ＿ＰＵＳＣＨ，ｂ，ｆ，ｃ (j), M ＰＵＳＣＨ ＲＢ，ｂ，ｆ，ｃ (i), α ｂ，ｆ，ｃ (j), P.L. ｂ，ｆ，ｃ (q ｄ ), ΔＴＦ，ｂ，ｆ，ｃ (i), f ｂ，ｆ，ｃ (i, l), may be based on at least one of

[0063]

[0064] The power control adjustment state may be referred to as a closed loop (CL)-power control (PC) state, a value based on TPC commands of a power control adjustment state index l, an accumulated value of TPC commands, or a value due to closed loop, where l may be referred to as a closed loop index.

[0065] Furthermore, the PUSCH transmission opportunity i is a period during which the PUSCH is transmitted, and may be composed of, for example, one or more symbols, one or more slots, etc.

[0066] P ＣＭＡＸ，ｆ，ｃ (i) is, for example, the maximum transmit power of the user terminal configured for carrier f of serving cell c at transmission opportunity i (configured maximum output power, UE configured maximum output power).

[0067] P Ｏ＿ＰＵＳＣＨ，ｂ，ｆ，ｃ (j) is, for example, a parameter related to the target received power (e.g., a parameter related to the transmit power offset, also referred to as a transmit power offset P0, a target received power parameter, etc.) set for the active UL BWP b of the carrier f of the serving cell c at the transmission opportunity i. Ｏ＿ＵＥ＿ＰＵＳＣＨ，ｂ，ｆ，ｃ (j) is P Ｏ＿ＮＯＭＩＮＡＬ＿ＰＵＳＣＨ，ｆ，ｃ (j) and P Ｏ＿ＵＥ＿ＰＵＳＣＨ，ｂ，ｆ，ｃ It may be the sum of (j).

[0068] M ＰＵＳＣＨ ＲＢ，ｂ，ｆ，ｃ (i) is the number of resource blocks (bandwidth) allocated to PUSCH for transmission opportunity i in active UL BWP b of carrier f with serving cell c and subcarrier spacing μ, for example. ｂ，ｆ，ｃ (j) is a value provided by a higher layer parameter (e.g., also called msg3-Alpha, p0-PUSCH-Alpha, fractional factor, etc.).

[0069] PL ｂ，ｆ，ｃ (q ｄ) is, for example, an index q of a reference signal (RS, pathloss reference RS, pathloss (PL)-RS, pathloss reference RS, pathloss measurement DL-RS, PUSCH-PathlossReferenceRS) for downlink BWP associated with an active UL BWP b of carrier f of serving cell c. ｄ is the path loss (path loss estimation [dB], path loss compensation) calculated by the user terminal using

[0070] If the UE is not provided with a pathloss reference RS (e.g., PUSCH-PathlossReferenceRS) or if the UE is not provided with individual upper layer parameters, the UE may use RS resources from a synchronization signal (SS) / physical broadcast channel (PBCH) block (SS block (SSB)) used to obtain a Master Information Block (MIB). ｂ，ｆ，ｃ (q ｄ ) may be calculated.

[0071] When the UE is configured with a number of RS resource indices up to the value of the maximum number of pathloss reference RSs (e.g., maxNrofPUSCH-PathlossReferenceRSs) and a set of RS configurations for the RS resource indices according to the pathloss reference RSs, the set of RS resource indices may include one or both of a set of SS / PBCH block indices and a set of channel state information (CSI)-reference signal (RS) resource indices. ｄ may be identified.

[0072] If a PUSCH transmission is scheduled by a Random Access Response (RAR) UL grant, the UE uses the same RS resource index q as for the corresponding PRACH transmission. ｄ may also be used.

[0073] When a UE is provided with a power control configuration for the PUSCH by a sounding reference signal (SRS) resource indicator (SRI) (e.g., SRI-PUSCH-PowerControl) and with one or more values ​​of ID of the pathloss reference RS, the UE may obtain a mapping between a set of values ​​for the SRI field in DCI format 0_1 ​​and a set of ID values ​​of the pathloss reference RS from higher layer signaling (e.g., sri-PUSCH-PowerControl-Id in SRI-PUSCH-PowerControl). The UE may obtain the RS resource index q from the ID of the pathloss reference RS mapped to the SRI field value in DCI format 0_1 ​​that schedules the PUSCH. ｄ may be determined.

[0074] If a PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with PUCCH spatial relationship information for the PUCCH resource with the lowest index for the active UL BWP b of each carrier f and serving cell c, the UE shall transmit the PUCCH spatial relationship information for the PUCCH resource with the same RS resource index q as the PUCCH transmission in that PUCCH resource. ｄ may also be used.

[0075] If the PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with a spatial setting for the PUCCH transmission, or if the PUSCH transmission is scheduled by DCI format 0_1 ​​that does not include an SRI field, or if the UE is not provided with a power control setting for the PUSCH by the SRI, the UE shall select an RS resource index q with an ID of a path loss reference RS of zero. ｄ may also be used.

[0076] For 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 is determined by a path loss reference index (e.g., pathlossReferenceIndex) in the specific parameter. ｄ may be provided to the UE.

[0077] For the PUSCH transmission configured by the configuration grant configuration, if the configuration 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 in the DCI format that activates the PUSCH transmission. ｄ If the DCI format does not include an SRI field, the UE may determine an RS resource index q with an ID of a pathloss reference RS of zero. ｄ may be determined.

[0078] Δ ＴＦ，ｂ，ｆ，ｃ (i) is the transmission power adjustment component (offset, transmission format compensation) for UL BWP b of carrier f of serving cell c.

[0079] f ｂ，ｆ，ｃ (i, l) is the PUSCH power control adjustment state for the active UL BWP b of carrier f of serving cell c at transmission opportunity i. ｂ，ｆ，ｃ (i,l) may be based on δPUSCH,b,f,c(i,l).

[0080] If TPC accumulation is valid, f ｂ，ｆ，ｃ (i,l) may be based on the accumulated value of δPUSCH,b,f,c(m,l).

[0081] If TPC accumulation is invalid, f ｂ，ｆ，ｃ (i,l) may be δPUSCH,b,f,c(i,l) (absolute value).

[0082] If information indicating that TPC accumulation is disabled (TPC-Accumulation) is not set (if information indicating that TPC accumulation is disabled is not provided, and TPC accumulation is set to be enabled), the UE accumulates TPC command values ​​and determines the transmit power based on the accumulation result (power control state) (applies the TPC command values ​​via accumulation).

[0083] When information indicating that TPC accumulation is disabled (TPC-Accumulation) is set (when information indicating that TPC accumulation is disabled is provided, when TPC accumulation is set to disabled), the UE does not accumulate TPC command values ​​and determines the transmission power based on the TPC command values ​​(power control state) (applies the TPC command values ​​without using accumulation).

[0084] δPUSCH,b,f,c(i,l) may be the TPC command value included in DCI format 0_0 or DCI format 0_1 ​​that schedules PUSCH transmission opportunity i on active UL BWP b of carrier f of serving cell c, or the TPC command value jointly coded with other TPC commands in DCI format 2_2 with CRC scrambled by a specific Radio Network Temporary Identifier (RNTI) (e.g., TPC-PUSCH-RNTI).

[0085] Σ m=0 C(Di)-1 δPUCCH,b,f,c(m,l) is the group / cardinality C(D i ) a set of TPC command values ​​D i It may be the sum of the TPC command values ​​in i is the number of PUSCH transmission opportunities i-i0 on the active UL BWP b of carrier f of serving cell c for the PUSCH power control adjustment state l. PUSCH (i-i0)-1 symbols ago and K of PUSCH transmission opportunity i PUSCH (i) may be the set of TPC command values ​​received between symbols (i) and (ii) for PUSCH transmission opportunity i-i. PUSCH(i-i0) symbols ago is K of PUSCH transmission opportunity i PUSCH (i) It may be the smallest positive integer that is earlier than the symbol before.

[0086] 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 configured by configured grant configuration information (ConfiguredGrantConfig), then K PUSCH (i) is the number of symbols per slot N in the active UL BWP b of carrier f of serving cell c symb slot and the minimum value of the value provided by k2 in the PUSCH common configuration information (PUSCH-ConfigCommon). PUSCH,min It may also be the number of symbols.

[0087] The power control adjustment state may be configured to have multiple states (e.g., two states) or a single state depending on a higher layer parameter. When multiple power control adjustment states are configured, one of the multiple power control adjustment states may be identified by an index l (e.g., l∈{0, 1}).

[0088] The transmission power of the PUCCH, the transmission power of the SRS, and the transmission power of the PUSCH are set to the maximum output power P ＣＭＡＸ，ｆ，ｃ（ｉ） is limited by

[0089] (PUCCH transmission power control) In NR, the transmission power of the PUCCH is controlled based on the TPC command (also called a value, an increase / decrease value, a correction value, an instruction value, etc.) indicated by the value of a specified field (also called a TPC command field, a first field, etc.) in the DCI.

[0090] For example, the power control adjustment state index l is used to determine the PUCCH transmission power (P ＰＵＣＣＨ、ｂ，ｆ，ｃ (i, q ｕ , q ｄ , l) may be expressed as follows:

[0091] The power control adjustment state may also be referred to as a PUCCH power control adjustment state, a first or second state, and so on.

[0092] Furthermore, the PUCCH transmission opportunity i is a predetermined period during which the PUCCH is transmitted, and may be composed of, for example, one or more symbols, one or more slots, or the like.

[0093] In formula F1, P ＣＭＡＸ，ｆ，ｃ (i) is, for example, the transmit power of the user terminal (also referred to as maximum transmit power, UE maximum output power, etc.) set for carrier f of serving cell c at transmission opportunity i. Ｏ＿ＰＵＣＣＨ，ｂ，ｆ，ｃ (q ｕ ) is, for example, a parameter related to a target received power (e.g., a parameter related to a transmit power offset, also referred to as a transmit power offset P0 or a target received power parameter) set for an active UL BWP b of a carrier f of a serving cell c at a transmission opportunity i.

[0094] M ＰＵＣＣＨ ＲＢ，ｂ，ｆ，ｃ (i) is the number of resource blocks (bandwidth) allocated to PUCCH for transmission opportunity i in active UL BWP b of carrier f with serving cell c and subcarrier spacing μ, for example. ｂ，ｆ，ｃ (q ｄ ) is, for example, the index q of the reference signal (path loss reference RS, DL RS for path loss measurement, PUCCH-PathlossReferenceRS) for downlink BWP associated with the active UL BWP b of carrier f of serving cell c.ｄ is the path loss calculated at the user terminal using

[0095] Δ Ｆ＿ＰＵＣＣＨ (F) is a higher layer parameter given for each PUCCH format. ＴＦ，ｂ，ｆ，ｃ (i) is the transmission power adjustment component (offset) for UL BWP b of carrier f of serving cell c.

[0096] g ｂ，ｆ，ｃ (i, l) is the TPC command-based value (e.g., power control adjustment state, accumulated value of TPC commands, closed-loop value, PUCCH power adjustment state) of the power control adjustment state index l of the active UL BWP of carrier f for serving cell c and transmission opportunity i.

[0097] If the UE is provided with information indicating the use of two PUCCH power control adjustment states (twoPUCCH-PC-AdjustmentStates) and PUCCH spatial relation information (PUCCH-SpatialRelationInfo), l = {0, 1}; if the UE is not provided with information indicating the use of two PUCCH power control adjustment states or PUCCH spatial relation information, l = 0.

[0098] If the UE obtains the TPC command value from DCI format 1_0 or 1_1, and if the UE is provided with 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) through the index provided by the P0 ID for PUCCH (p0-PUCCH-Id in p0-Set in PUCCH-PowerControl in PUCCH-Config). If the UE receives an activation command including a value of PUCCH spatial relation information ID, the UE may determine the value of the closed-loop index, which provides the value of l, through a link to the corresponding P0 ID for PUCCH.

[0099] If the UE has an active UL BWP b for carrier f of serving cell c, then P Ｏ＿ＰＵＣＣＨ，ｂ，ｆ，ｃ (q ｕ ) value setting is provided by a higher layer, ｂ，ｆ，ｃ (i, l) = 0, k = 0, 1, ..., i. If the UE is provided with PUCCH spatial related information, the UE ｕ Based on the P0 ID for PUCCH corresponding to , the closed-loop index value corresponding to , and the PUCCH spatial relationship information associated with q ｕ The value of l may be determined from the value of

[0100] q ｕ may be a P0 ID for PUCCH (p0-PUCCH-Id) indicating P0 for PUCCH (P0-PUCCH) in a P0 set for PUCCH (p0-Set).

[0101] (JT) Joint transmission (JT) may refer to simultaneous data transmission from multiple points (eg, TRPs) to a single UE.

[0102] Rel. 17 supports non-coherent joint transmission (NCJT) from two TRPs. The PDSCHs from the two TRPs may be independently precoded and independently decoded. The frequency resources may be non-overlapping, partially overlapping, or fully overlapping. When overlap occurs, the PDSCH from one TRP will interfere with the PDSCH from the other TRP.

[0103] Rel. 18 is considering supporting coherent joint transmission (CJT) using up to four TRPs. Data from the four TRPs may be coherently precoded and transmitted to the UE on the same time-frequency resource. For example, the same precoding matrix may be used to consider channels from the four TRPs. Coherence may mean that there is a fixed relationship between the phases of multiple received signals. Using four-TRP joint precoding, signal quality may be improved and there may be no interference between the four TRPs. Data may only be subject to interference outside the four TRPs.

[0104] (Unified / Common TCI Framework) The unified TCI framework allows multiple types of channels / RSs (UL / DL) to be controlled by a common framework. The unified TCI framework does not specify TCI states or spatial relationships for each channel as in Rel. 15. Instead, it may specify a common beam (common TCI state) and apply it to all UL and DL channels, or it may apply a common beam for UL to all UL channels and a common beam for DL ​​to all DL channels.

[0105] One common beam for both DL and UL, or one common beam for DL ​​and one common beam for UL (two common beams overall) are considered.

[0106] The UE may assume the same TCI state for UL and DL (joint TCI state, joint TCI pool, joint common TCI pool, joint TCI state set). The UE may assume different TCI states for UL and DL (separate TCI state, separate TCI pool, UL separate TCI pool and DL separate TCI pool, separate common TCI pool, UL common TCI pool and DL common TCI pool).

[0107] The default beams for UL and DL may be aligned via MAC CE based beam management (MAC CE level beam indication). The default TCI state of the PDSCH may be updated to align with the default UL beam (spatial relationship).

[0108] DCI-based beam management (DCI-level beam indication) may indicate a common beam / unified TCI state from the same TCI pool for both UL and DL (joint common TCI pool, joint TCI pool, set). X (>1) TCI states may be activated by the MAC CE. The UL / DL DCI may select one from the X active TCI states. The selected TCI state may apply to both UL and DL channels / RS.

[0109] The TCI pool (set) may be multiple TCI states configured by RRC parameters, or multiple TCI states (active TCI states, active TCI pools, sets) activated by MAC CE among the multiple TCI states configured by RRC parameters. Each TCI state may be a QCL type A / D RS. SSB, CSI-RS, or SRS may be configured as the QCL type A / D RS.

[0110] The number of TCI states corresponding to each of one or more TRPs may be specified. For example, the number N (≧1) of TCI states applied to UL channels / RSs (UL TCI states) and the number M (≧1) of TCI states applied to DL channels / RSs (DL TCI states) may be specified. At least one of N and M may be notified / configured / instructed to the UE via higher layer signaling / physical layer signaling.

[0111] In the present disclosure, when N=M=X (X is any integer), it may mean that X TCI states (joint TCI states) common to UL and DL (corresponding to X TRPs) are notified / configured / indicated to the UE. Also, when N=X (X is any integer) and M=Y (Y may be any integer, Y=X), it may mean that X UL TCI states (corresponding to X TRPs) and Y DL TCI states (i.e., separate TCI states) (corresponding to Y TRPs) are notified / configured / indicated to the UE.

[0112] For example, when N=M=1 is written, this may mean that a TCI state common to one UL and DL for a single TRP is notified / configured / indicated to the UE (joint TCI state for a single TRP).

[0113] Also, for example, when N=1 and M=1 are written, this may mean that one UL TCI state and one DL TCI state for a single TRP are separately notified / configured / instructed to the UE (separate TCI states for a single TRP).

[0114] Also, for example, when N=M=2 is written, this may mean that a TCI state common to multiple (two) ULs and DLs for multiple (two) TRPs is notified / configured / instructed to the UE (joint TCI state for multiple TRPs).

[0115] Also, for example, when N=2 and M=2, it may mean that multiple (two) UL TCI states and multiple (two) DL TCI states for multiple (two) TRPs are notified / configured / instructed to the UE (separate TCI states for multiple TRPs).

[0116] In the above example, the values ​​of N and M are 1 or 2, but the values ​​of N and M may be 3 or more, and N and M may be different.

[0117] It is being considered that N=M=1 will be supported in Rel. 17. It is being considered that other cases will be supported in Rel. 18 and later.

[0118] In the example of Figure 10A, an RRC parameter (information element) configures multiple TCI states for both DL and UL. A MAC CE may activate multiple TCI states from the configured multiple TCI states. A DCI may indicate one of the activated multiple TCI states. The DCI may be a UL / DL DCI. The indicated TCI state may apply to at least one (or all) of the UL / DL channels / RS. One DCI may indicate both UL TCI and DL TCI.

[0119] In the example of this figure, a point may be one TCI state that applies to both UL and DL, or two TCI states that apply to UL and DL respectively.

[0120] At least one of the multiple TCI states configured by the RRC parameters and the multiple TCI states activated by the MAC CE may be referred to as a TCI pool (common TCI pool, joint TCI pool, TCI state pool). The multiple TCI states activated by the MAC CE may be referred to as an active TCI pool (active common TCI pool).

[0121] In the present disclosure, higher layer parameters (RRC parameters) for setting multiple TCI states may be referred to as configuration information for setting multiple TCI states, or simply as "configuration information." Also, in the present disclosure, being instructed to set one of multiple TCI states using DCI may mean receiving indication information instructing one of the multiple TCI states included in DCI, or may simply mean receiving "instruction information."

[0122] In the example of Figure 10B, the RRC parameters configure multiple TCI states (joint common TCI pools) for both DL and UL. The MAC CE may activate multiple TCI states (active TCI pools) from the configured multiple TCI states. Separate active TCI pools for each of the UL and DL may be configured / activated.

[0123] The DL DCI or a new DCI format may select (indicate) one or more (e.g., one) TCI states. The selected TCI state may apply to one or more (or all) DL channels / RSs. The DL channels may be PDCCH / PDSCH / CSI-RS. The UE may determine the TCI state of each DL channel / RS using the TCI state behavior (TCI framework) of Rel. 16. The UL DCI or a new DCI format may select (indicate) one or more (e.g., one) TCI states. The selected TCI state may apply to one or more (or all) UL channels / RSs. The UL channels may be PUSCH / SRS / PUCCH. In this way, different DCIs may indicate UL TCI and DL DCI separately.

[0124] It is assumed that in Rel. 17 NR and later, the MAC CE / DCI supports beam activation / indication to a TCI state associated with a different physical cell identifier (PCI), and in Rel. 18 NR and later, the MAC CE / DCI supports indicating a serving cell change to a cell with a different PCI.

[0125] [Physical Layer Procedures for Data / Antenna Port QCL] In PDSCH-Config, the UE can configure a list of up to 128 DLorJointTCIState configurations to provide reference signals for PDSCH DMRS and PDCCH DMRS and CSI-RS within a CC, and also to provide a reference for determining the UL TX (Transmit) spatial filter for PUSCH and PUCCH resources and SRS within a CC based on dynamic and configuration grants, if available.

[0126] If there is no DLorJointTCIState or UL-TCIState (UL TCI state) configuration in the BWP in that CC, the UE may apply the DLorJointTCIState or UL-TCIState configuration from the reference BWP of the reference CC. If the UE has DLorJointTCIState or UL-TCIState configured in any CC in the same band, it does not assume that TCI-State, SpatialRelationInfo (spatial relation information), or PUCCH-SpatialRelationInfo (PUCCH spatial relation information) in that band are configured, except for SpatialRelationInfoPos (spatial relation information for position). The UE assumes that if the UE has TCI-State in any CC in the CC list configured by simultaneousTCI-UpdateList1-r16 (simultaneous TCI update list 1), simultaneousTCI-UpdateList2-r16 (simultaneous TCI update list 2), simultaneousSpatial-UpdatedList1-r16 (simultaneous spatial update list 1), or simultaneousSpatial-UpdatedList2-r16 (simultaneous spatial update list 2), the UE does not have DLorJointTCIState or UL-TCIState configured in any CC in that CC list.

[0127] The UE receives an activation command used to map up to eight TCI states and / or TCI state pairs, with one TCI state for DL ​​channels / signals and one TCI state for UL channels / signals, to codepoints in the DCI field 'Transmission Configuration Indication' (TCI) for one CC / DL BWP or set of CC / DL BWPs, if available. If a set of TCI state IDs is activated for a set of CC / DL BWPs, and also for one CC / DL BWP, if available, the same set of TCI state IDs applies to all DL and / or UL BWPs within the indicated CC, where the applicable list of CCs is determined by the CC indicated in the activation command. If the activation command maps DLorJointTCIState and / or UL-TCIState to only one TCI codepoint, the UE applies the indicated DLorJointTCIState and / or UL-TCIState to one or a set of CC / DL BWPs, and if the indicated mapping to one single TCI codepoint applies, the UE applies the indicated DLorJointTCIState and / or UL-TCIState to one or a set of CC / DL BWPs.

[0128] If the bwp-id or cell for a QCL type A / D source RS in the QCL-Info of a TCI state with DLorJointTCIState set is not set, the UE shall assume that the QCL type A / D source RS is set in the CC / DL BWP to which the TCI state applies.

[0129] (TCI State Indication) The Rel. 17 unified TCI framework supports the following modes 1 to 3: [Mode 1] MAC CE based TCI state indication [Mode 2] DCI based TCI state indication by DCI format 1_1 / 1_2 with DL assignment [Mode 3] DCI based TCI state indication by DCI format 1_1 / 1_2 without DL assignment

[0130] A UE with a TCI state configured and activated with a Rel. 17 TCI State ID (e.g., tci-StateId_r17) receives DCI format 1_1 / 1_2 providing an indicated TCI state with the Rel. 17 TCI State ID for one CC, or receives DCI format 1_1 / 1_2 providing an indicated TCI state with the Rel. 17 TCI State ID for all CCs in the same CC list as the CC list configured by simultaneous TCI update list 1 or simultaneous TCI update list 2 (e.g., simultaneousTCI-UpdateList1 or simultaneousTCI-UpdateList2). DCI format 1_1 / 1_2 may or may not be accompanied by a DL assignment if one is available.

[0131] If DCI format 1_1 / 1_2 does not carry a DL assignment, the UE can assume (verify) the following for that DCI: - the CS-RNTI is used to scramble the CRC for the DCI; - the values ​​of the following DCI fields (special fields) are set as follows: - the redundancy version (RV) field is all '1's; - the modulation and coding scheme (MCS) field is all '1's; - the new data indicator (NDI) field is 0; - the frequency domain resource assignment (FDRA) field is all '0's for FDRA type 0, or all '1's for FDRA type 1, or all '0's for Dynamic Switch (similar to PDCCH validation for release of DL semi-persistent scheduling (SPS) or UL grant type 2 scheduling).

[0132] Note that the DCI in the above-mentioned mode 2 / mode 3 may be referred to as beam instruction DCI.

[0133] In Rel. 15 / 16, if a UE does not support active BWP changes via DCI, the UE ignores the BWP indicator field. A similar behavior is considered for the relationship between support for Rel. 17 TCI states and the interpretation of the TCI field. It is considered that if a UE is configured with Rel. 17 TCI states, the TCI field will always be present in DCI format 1_1 / 1_2, and if the UE does not support TCI updates via DCI, the UE will ignore the TCI field.

[0134] In Rel. 15 / 16, whether or not a TCI field is present (TCI presence information in DCI, tci-PresentInDCI) is set for each CORESET.

[0135] The TCI field in DCI format 1_1 is 0-bit if the higher layer parameter tci-PresentInDCI is not enabled, and 3-bit otherwise. If the BWP indicator field indicates a BWP other than the active BWP, the UE shall follow the following behavior: [Action] If the higher layer parameter tci-PresentInDCI is not enabled for the CORESET used for the PDCCH carrying that DCI format 1_1, the UE shall assume that tci-PresentInDCI is not enabled for all CORESETs in the indicated BWP; otherwise, the UE shall assume that tci-PresentInDCI is enabled for all CORESETs in the indicated BWP.

[0136] The TCI field in DCI format 1_2 is 0 bit if the higher layer parameter tci-PresentInDCI-1-2 is not set, otherwise it is 1, 2 or 3 bits determined by the higher layer parameter tci-PresentInDCI-1-2. If the BWP indicator field indicates a BWP other than the active BWP, the UE shall follow the following actions. [Operation] If the higher layer parameter tci-PresentInDCI-1-2 is not set for the CORESET used for the PDCCH carrying that DCI format 1_2, the UE shall assume that tci-PresentInDCI is not enabled for all CORESETs in the indicated BWP; otherwise, the UE shall assume that tci-PresentInDCI-1-2 for all CORESETs in the indicated BWP is set with the same value as tci-PresentInDCI-1-2 set for the CORESET used for the PDCCH carrying that DCI format 1_2.

[0137] 11A shows an example of a DCI-based joint DL / UL TCI status indication, in which a TCI status ID indicating the joint DL / UL TCI status is associated with a value of the TCI field for the joint DL / UL TCI status indication.

[0138] 11B shows an example of DCI-based separate DL / UL TCI status indication. At least one TCI state ID, indicating a DL-only TCI state or indicating a UL-only TCI state, is associated with a value of the TCI field for the separate DL / UL TCI status indication. In this example, TCI field values ​​000 to 001 are associated with only one TCI state ID for DL, TCI field values ​​010 to 011 are associated with only one TCI state ID for UL, and TCI field values ​​100 to 111 are associated with both one TCI state ID for DL ​​and one TCI state ID for UL.

[0139] (Indicated TCI State / Configured TCI State) For Rel. 17 TCI states, unified / common TCI state may mean the Rel. 17 TCI state indicated using (Rel. 17) DCI / MAC CE / RRC (indicated Rel. 17 TCI state).

[0140] In the present disclosure, the terms indicated Rel. 17 TCI state, indicated TCI state, unified / common TCI state, TCI state applicable to multiple types of signals (channels / RS), and TCI state for multiple types of signals (channels / RS) may be interpreted interchangeably.

[0141] The indicated Rel. 17 TCI state may be shared with at least one of the UE-specific reception of PDSCH / PDCC (updated using Rel. 17 DCI / MAC CE / RRC), PUSCH of dynamic grant (DCI) / configured grant, and multiple (e.g., all) dedicated PUCCH resources. The TCI state indicated by DCI / MAC CE / RRC may be referred to as the indicated TCI state or the unified TCI state.

[0142] Regarding the Rel. 17 TCI state, a TCI state other than the unified TCI state may refer to a Rel. 17 TCI state configured using (Rel. 17) MAC CE / RRC (configured Rel. 17 TCI state). In this disclosure, the terms configured Rel. 17 TCI state, configured TCI state, TCI state other than the unified TCI state, and TCI state applied to a specific type of signal (channel / RS) may be interpreted interchangeably.

[0143] The configured Rel. 17 TCI state may not be shared with at least one of the UE-specific reception of PDSCH / PDCC (updated using Rel. 17 DCI / MAC CE / RRC), PUSCH of dynamic grant (DCI) / configured grant, and multiple (e.g., all) dedicated PUCCH resources. The configured Rel. 17 TCI state may be configured by RRC / MAC CE per CORESET / per resource / per resource set, and may not be updated even if the indicated Rel. 17 TCI state (common TCI state) is updated.

[0144] It is being considered that the indicated Rel. 17 TCI state will be applied to UE-specific channels / signals (RS), and that the UE will be notified by higher layer signaling (RRC signaling) whether the indicated Rel. 17 TCI state or the configured Rel. 17 TCI state will be applied to non-UE-specific channels / signals.

[0145] It is being considered that the RRC parameters for the configured Rel. 17 TCI state (TCI state ID) will have the same configuration as the RRC parameters for the TCI state in Rel. 15 / 16. It is also being considered that the configured Rel. 17 TCI state will be configured / instructed per CORESET / per resource / per resource set using RRC / MAC CE. It is also being considered that the UE will determine the configuration / instruction based on specific parameters.

[0146] It is considered that the UE updates the indicated TCI state and the configured TCI state separately. For example, if the unified TCI state for the indicated TCI state is updated, the UE may not update the configured TCI state. It is also considered that the UE may determine whether to update the configured TCI state based on a specific parameter.

[0147] Furthermore, regarding the PDCCH / PDSCH, it is being considered to use higher layer signaling (RRC / MAC CE) to switch whether the indication Rel. 17 TCI state is applied or not (the configured Rel. 17 TCI state is applied, or a TCI state configured separately from the indication Rel. 17 TCI state is applied).

[0148] Regarding intra-cell beam indication (TCI state indication), it is being considered to support Rel. 17 TCI state indication for a UE-specific CORESET and its associated PDSCH, and a non-UE-specific CORESET and its associated PDSCH.

[0149] Also, for inter-cell beam indication (e.g., L1 / L2 inter-cell mobility), it is being considered to support Rel. 17 TCI state indication for a UE-specific CORESET and its associated PDSCH.

[0150] In Rel. 15, whether to indicate the TCI state for CORESET #0 was up to the implementation of the base station. In Rel. 15, for CORESET #0 for which a TCI state is indicated, the indicated TCI state is applied. For CORESET #0 for which a TCI state is not indicated, the SSB and QCL selected at the time of the latest (most recent) PRACH transmission are applied.

[0151] In the unified TCI state framework for Rel. 17 and later, the TCI state for CORESET #0 is being considered.

[0152] For example, in the unified TCI state framework for Rel. 17 and later, whether or not to apply the indicated Rel. 17 TCI state associated with the serving cell for the Rel. 17 TCI state indication in CORESET #0 is configured by RRC for each CORESET, and if not, the legacy MAC CE / RACH signaling mechanism may be used.

[0153] Note that the CSI-RS associated with the Rel. 17 TCI state applied to CORESET #0 may be QCL'd with the SSB associated with the serving cell PCI (physical cell ID) (similar to Rel. 15).

[0154] For CORESET #0, a CORESET with a common search space (CSS), and a CORESET with a CSS and a UE-specific search space (USS), whether to follow the Rel. 17 TCI state may be configured for each CORESET by an RRC parameter. If the Rel. 17 TCI state is not configured to be followed for that CORESET, the configured Rel. 17 TCI state may be applied to that CORESET.

[0155] For non-UE-dedicated channels / RSs (except CORESET), whether to follow the indicated Rel. 17 TCI state may be configured by an RRC parameter for each channel / resource / resource set. If the indicated Rel. 17 TCI state is not configured for that channel / resource / resource set, the configured Rel. 17 TCI state may apply to that channel / resource / resource set.

[0156] (Channels / RSs to which the indicated TCI state applies) The indicated TCI state by the MAC CE / DCI may apply to the following channels / RSs:

[0157] [PDCCH] - If followUnifiedTCIState is configured for CORESET0, the indicated TCI state applies. Otherwise, the Rel. 15 specifications apply for that CORESET. That is, CORESET0 follows the TCI state activated by the MAC CE or is QCL'd with SSB. - For CORESETs with USS / CSS type 3 and index other than 0, the indicated TCI state always applies. - For CORESETs with index other than 0 and at least CSS type other than 3, if followUnifiedTCIState is configured, the indicated TCI state applies. Otherwise, the configured TCI state for that CORESET applies to that CORESET.

[0158] [PDSCH] - The indicated TCI state always applies to all UE-dedicated PDSCHs. - For non-UE-dedicated PDSCHs (PDSCHs scheduled by DCI in CSS), the indicated TCI state may apply if followUnifiedTCIState is set (for the CORESET of the PDCCH that schedules that PDSCH). Otherwise, the configured TCI state for that PDSCH applies to that PDSCH. If followUnifiedTCIState is not set for a PDSCH, whether a non-UE-dedicated PDSCH follows the indicated TCI state may depend on whether followUnifiedTCIState is set for the CORESET used to schedule that PDSCH.

[0159] [CSI-RS] For an A-CSI-RS for CSI acquisition or beam management, if followUnifiedTCIState is set (for CORESET of the PDCCH that triggers that A-CSI-RS), the indicated TCI state applies. For other CSI-RSs, the configured TCI state for that CSI-RS applies.

[0160] [PUCCH] - For all dedicated PUCCH resources, the indicated TCI state always applies.

[0161] [PUSCH] - For dynamic / configured grant PUSCH, the indication TCI state always applies.

[0162] [SRS] - When the SRS resource set for the A-SRS used for beam management and the A / SP / P-SRS used for codebook (CB) / non-codebook (NCB) / antenna switching is configured to follow the unified TCI state, the indicated TCI state is applied. For other SRSs, the configured TCI state in the SRS resource set is applied.

[0163] (Analysis) As mentioned above, P Ｏ＿ＳＲＳ (The above P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ )) is the active UL BWP b of carrier f of serving cell c and the SRS resource set q ｓ (provided by SRS-ResourceSet and SRS-ResourceSetId) and p0 for .

[0164] In existing specifications (up to Rel. 17), p0 is provided using an integer between -202 and 24 in the SRS configuration (RRC information element SRS-Config).

[0165] Basically, P Ｏ＿ＳＲＳ consists of only the absolute target power [dBm] for each SRS setting.

[0166] Also, as mentioned above, P Ｏ＿ＰＵＳＣＨ (The above P Ｏ＿ＰＵＳＣＨ，ｂ，ｆ，ｃ (j)) is P Ｏ＿ＮＯＭＩＮＡＬ＿ＰＵＳＣＨ (The above P Ｏ＿ＮＯＭＩＮＡＬ＿ＰＵＳＣＨ，ｆ，ｃ (j)) and P Ｏ＿ＵＥ＿ＰＵＳＣＨ (The above P Ｏ＿ＵＥ＿ＰＵＳＣＨ，ｂ，ｆ，ｃ (j)) and (j).

[0167] For PUSCH scheduled by dynamic grant (DG, e.g., DCI), Ｏ＿ＮＯＭＩＮＡＬ＿ＰＵＳＣＨ is provided by the RRC parameter "p0-NominalWithGrant", and P Ｏ＿ＵＥ＿ＰＵＳＣＨ is provided by "p0" in the RRC parameter "P0-PUSCH-AlphaSet".

[0168] In the existing specifications (up to Rel. 17), the "p0-NominalWithGrant" is provided using integers from -202 to 24, and the "p0" is provided using integers from -16 to 15.

[0169] In principle, P Ｏ＿ＰＵＳＣＨ is composed of the absolute target power [dBm] for each cell and the differential power [dB] for each BWP for each cell.

[0170] In Rel. 17, when an RRC parameter related to the unified TCI state (e.g., TCI-State or TCI-UL-State in dl-OrJointTCI-StateList) is configured for a UE, the RRC parameter includes an RRC parameter for UL power control (Uplink-powerControl-r17) (see FIG. 12).

[0171] The RRC parameters for UL power control (Uplink-powerControl-r17) include at least one of an UL power control ID (ul-powercontrolId-r17), a power control parameter for PUSCH (p0AlphaSetforPUSCH-r17), a power control parameter for PUCCH (p0AlphaSetforPUCCH-r17), and a power control parameter for SRS (p0AlphaSetforSRS-r17) (see FIG. 12).

[0172] The power control parameter for PUSCH (p0AlphaSetforPUSCH), the power control parameter for PUCCH (p0AlphaSetforPUCCH), and the power control parameter for SRS (p0AlphaSetforSRS) all refer to the parameter related to the set of p0 and α (P0AlphaSet-r17).

[0173] The parameters relating to the set of p0 and α (P0AlphaSet-r17) include at least one of a parameter indicating p0 (p0-r17), a parameter indicating α (alpha-r17), and a parameter indicating a power control adjustment state index (closedLoopIndex-r17).

[0174] If a joint / UL TCI state is indicated to the UE, the transmit power control parameters are updated / changed to those corresponding to the indicated TCI state.

[0175] In Rel. 18 and later, for example, for PUSCH, according to the indication TCI state, Ｏ＿ＵＥ＿ＰＵＳＣＨ It is being considered that the differential power (V) will be changed.

[0176] In Rel. 18 and later, for example, for PUCCH, according to the indication TCI state, Ｏ＿ＰＵＣＣＨ (absolute power) is being considered for change. Ｏ＿ＰＵＣＣＨ Is, P Ｏ＿ＮＯＭＩＮＡＬ＿ＰＵＣＣＨ and P Ｏ＿ＵＥ＿ＰＵＣＣＨ It may be defined as the sum of Ｏ＿ＰＵＣＣＨ (absolute power) is changed, P Ｏ＿ＵＥ＿ＰＵＣＣＨ is preferably changed.

[0177] In Rel. 18 and later, for example, for SRS, according to the indication TCI state, Ｏ＿ＳＲＳ (absolute power) is being considered for change.

[0178] For PUSCH / PUCCH / SRS, multiple sets including at least one of the following parameters can be configured: P0 (absolute power [dBm] / differential power [dB]) Closed-loop state (power control adjustment state, l) Path loss RS (SSB or CSI-RS) α

[0179] In Rel. 17, in the unified TCI state framework, the RRC parameter for UL power control (Uplink-powerControl-r17) is referenced for all PUSCH / PUCCH / SRS (see FIG. 12).

[0180] For example, in the case of SRS, p0 is an absolute power represented by an integer value in the range of -202 to 24, while p0 updated by the indicated TCI state may be a differential power represented by an integer value in the range of -16 to 15.

[0181] In other words, by introducing a unified TCI state, the range of updated p0 becomes significantly smaller than the set (original) range of p0, which may result in inappropriate updating of the SRS transmission power parameter (e.g., p0).

[0182] It is also possible that similar problems may occur with other UL signals (for example, PUSCH / PUCCH).

[0183] That is, for UL signals, there is insufficient consideration as to whether the setting / updating of transmit power parameters in the unified TCI state framework is based on absolute power or differential power.

[0184] If this consideration is not sufficient, the transmission power parameters cannot be set / updated appropriately in the unified TCI state framework, which may result in a decrease in communication quality / throughput.

[0185] Therefore, the present inventors have conceived a method for controlling the power of an UL signal.

[0186] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings. Wireless communication methods according to the embodiments may be applied independently or in combination.

[0187] In the present disclosure, "A / B" and "at least one of A and B" may be interpreted interchangeably. Also, in the present disclosure, "A / B / C" may mean "at least one of A, B, and C."

[0188] In the present disclosure, terms such as notify, activate, deactivate, indicate (or indicate), select, configure, update, and determine may be read interchangeably. In the present disclosure, terms such as support, control, controllable, operate, and operate may be read interchangeably.

[0189] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, fields, information elements (IEs), settings, etc. may be interchangeable. In the present disclosure, Medium Access Control (MAC) control elements (CEs), update commands, activation / deactivation commands, etc. may be interchangeable.

[0190] In the present disclosure, higher layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

[0191] In the present disclosure, MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. Broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

[0192] In the present disclosure, physical layer signaling may be, for example, Downlink Control Information (DCI), Uplink Control Information (UCI), and the like.

[0193] In this disclosure, a b , a_b, and a with b added to the bottom right of a may be read interchangeably. c , a^c, and the notation of a with c added to the upper right of a may be read interchangeably. b c , a_b^c, a notation with b added to the bottom right of a and c added to the top right, may be read as interchangeable. In the present disclosure, ceil(x), ceiling function, and ceiling function may be read as interchangeable. In the present disclosure, floor(x), floor function, and floor function may be read as interchangeable.

[0194] (Wireless Communication Method) In each embodiment, SRS, P-SRS, SP-SRS, and A(AP)-SRS may be interchangeable. In the present disclosure, SRS resource, SRS resource set, and SRS resource set group may be interchangeable.

[0195] In each embodiment, the terms TRP, TRP ID, higher layer configured ID, configurable index, specific index, TRP index, panel index, index introduced for CJT, antenna port index, RS (SRS) port index, CORESET pool index, TCI state position, ID configured by higher layer signaling, and SRS resource set may be interchangeable.

[0196] In each embodiment, the set of power control parameters may include at least one of the following parameters / information: P0 (P0_SRS) Closed-loop state (power control adjustment state, l) index Path loss RS (SSB or CSI-RS) α (path loss compensation factor for UL power control)

[0197] In each embodiment, the terms "configuration," "SRS configuration," "SRS resource set configuration," and "SRS resource configuration" may be interchangeable.

[0198] In this disclosure, the unified TCI state, the indicated TCI state, the joint TCI state, the UL TCI state, the DL TCI state, the indicated joint TCI state, the indicated UL TCI state, the indicated DL TCI state, and the TCI state may be interchangeable. The unified TCI state in this disclosure may be a Rel. 17 unified TCI state, a Rel. 18 unified TCI state, or a Rel. X (X is any number) unified TCI state.

[0199] In the following, each embodiment of the present disclosure will be described using a specific UL signal (e.g., SRS / PUCCH / PUSCH) as an example, but SRS, PUCCH, and PUSCH may be interchangeable. In other words, each embodiment of the present disclosure can be applied as appropriate not only to the UL signal described, but also to SRS / PUCCH / PUSCH.

[0200] First Embodiment A set of transmission power control parameters for SRS (for example, p0AlphaSetforSRS) for the unified TCI state may be configured / instructed to the UE.

[0201] The transmission power control parameter may be, for example, at least one of a parameter (e.g., p0-r17) relating to a transmission power offset (e.g., p0) and a parameter (e.g., alpha-r17) indicating a path loss compensation coefficient (e.g., α) for UL power control.

[0202] Note that the names of the RRC parameters in the present disclosure are merely examples and are not limited to the examples shown. "-rXX" added to an RRC parameter may mean that the parameter is defined in Rel. XX, or that the parameter defined in Rel. XX is an extended parameter. "-rXX" added to an RRC parameter may be deleted.

[0203] The transmission power control parameter may be a transmission power control parameter used in setting / indicating / updating a unified TCI state (indicated TCI state).

[0204] The transmission power control parameter may be expressed, for example, as absolute power.

[0205] The transmission power control parameter may, for example, be indicated in a first range.

[0206] The first range may be indicated, for example, as a range indicating absolute power (for example, a range from −202 to 24).

[0207] The first embodiment is broadly divided into the following options 1-1 to 1-4. The UE / NW may follow one of the options 1-1 to 1-4, or a combination of at least two of the options 1-1 to 1-4.

[0208] <<Option 1-1>> For example, the range of a parameter (e.g., p0-r17) related to the transmission power offset (e.g., p0) defined in Rel. 17 may be extended.

[0209] The transmission power control parameters defined in the first range may be, for example, only transmission power control parameters for a specific UL signal (e.g., SRS). For example, transmission power control parameters for signals other than the specific UL signal (e.g., PUSCH / PUCCH) may be indicated in a second range (e.g., a range from −16 to 15) narrower / smaller than the first range.

[0210] 13 is a diagram showing an example of transmission power parameters according to Option 1-1. In the example shown in FIG. 13, in the set of p0 and α (P0AlphaSet-r17) referenced by the transmission power control parameter for SRS (p0AlphaSetforSRS-r17) included in the UL power control parameter (Uplink-powerControl-r17), the parameter indicating p0 is expressed in the range of −202 to 24.

[0211] <<Option 1-2>> For example, a first transmission power control parameter (e.g., a transmission power control parameter indicated by a first range (a new RRC parameter, which may be written as p0-r17xx, for example)) may be set / defined separately from a second transmission power control parameter (e.g., a parameter (e.g., p0-r17) related to a transmission power offset (e.g., p0) defined in Rel. 17).

[0212] The second transmission power control parameter may be expressed in a second range, which may for example be narrower / smaller than the first range (e.g., a range from -16 to 15), and the first transmission power control parameter may be expressed in terms of a differential power.

[0213] The UE may determine the transmission power control parameter to be used for SRS transmission power control based on the setting of the first transmission power control parameter and the setting of the second transmission power control parameter.

[0214] For example, when only the first transmission power control parameter is configured for the UE, the UE may use the first transmission power control parameter as the transmission power control parameter to be used for SRS transmission power control.

[0215] For example, when only the second transmission power control parameter is configured for the UE, the UE may use the second transmission power control parameter as the transmission power control parameter to be used for SRS transmission power control.

[0216] For example, when a first transmission power control parameter and a second transmission power control parameter are configured for a UE, the UE may determine that only the first (or second) transmission power control parameter is used for SRS transmission power control.

[0217] The first transmission power control parameter (e.g., new RRC parameter) may be set only for the SRS (e.g., transmission power control parameter for the SRS (p0AlphaSetforSRS-r17)). The first transmission power control parameter (e.g., new RRC parameter) may be available only for the SRS (e.g., transmission power control parameter for the SRS (p0AlphaSetforSRS-r17)).

[0218] For example, for UL signals other than SRS (e.g., transmission power control parameter for PUSCH (p0AlphaSetforPUSCH-r17) / transmission power control parameter for PUCCH (p0AlphaSetforPUCCH-r17)), even if a first transmission power control parameter (e.g., a new RRC parameter) is set (exists), an existing transmission power control parameter (second transmission power control parameter) may be used.

[0219] 14 is a diagram showing an example of transmission power parameters related to Option 1-2. In the example shown in FIG. 14, the set of p0 and α (P0AlphaSet-r17) referenced by the SRS transmission power control parameter (p0AlphaSetforSRS-r17) included in the UL power control parameter (Uplink-powerControl-r17) includes a parameter (p0-r17) indicating p0 represented by differential power and a parameter (p0-r17xx) indicating p0 represented by absolute power. The parameter (p0-r17) indicating p0 represented by differential power is expressed in the range of -16 to 15, and the parameter (p0-r17xx) indicating p0 represented by absolute power is expressed in the range of -202 to 24.

[0220] <<Option 1-3>> For example, at least one of a first set of transmission power control parameters for SRS (e.g., P0AlphaSet-r17xx) including a first transmission power control parameter (e.g., a transmission power control parameter indicated by a first range (e.g., p0-r17 / p0-r17xx)) and a second set of transmission power control parameters for SRS (e.g., P0AlphaSet-r17) including a second transmission power control parameter (e.g., a parameter related to a transmission power offset (e.g., p0) specified in Rel. 17 (e.g., p0-r17)) may be specified / set in the UL power control parameter (e.g., Uplink-powerControl-r17).

[0221] The first transmit power control parameter may be indicated in a first range (eg, a range of -202 to 24) and the second transmit power control parameter may be indicated in a second range (eg, a range of -16 to 15).

[0222] The UE may determine the transmission power control parameters to be used for SRS transmission power control based on the setting of the first set of SRS transmission power control parameters and the setting of the second set of SRS transmission power control parameters.

[0223] For example, when only the first set of transmission power control parameters for SRS is configured for a UE, the UE may use the transmission power control parameters included in the first set of transmission power control parameters for SRS as the transmission power control parameters to be used for SRS transmission power control.

[0224] For example, when only a second set of transmission power control parameters for SRS is configured for a UE, the UE may use the transmission power control parameters included in the second set of transmission power control parameters for SRS as the transmission power control parameters to be used for SRS transmission power control.

[0225] For example, when a first set of transmission power control parameters for SRS and a second set of transmission power control parameters for SRS are configured for a UE, the UE may determine that only the transmission power control parameters included in the first (or second) set of transmission power control parameters for SRS are to be used for transmission power control for SRS.

[0226] Fig. 15 is a diagram showing an example of transmission power parameters according to Options 1 to 3. In the example shown in Fig. 15, the UL power control parameter (Uplink-powerControl-r17) includes at least one of P0AlphaSet-r17 and P0AlphaSet-r17xx.

[0227] In the example shown in FIG. 15, P0AlphaSet-r17 includes a parameter (p0-r17) indicating p0, which is expressed in the range of −16 to 15, and P0AlphaSet-r17xx includes a parameter (p0-r17) indicating p0, which is expressed in the range of −202 to 24.

[0228] <<Options 1-4>> For example, a transmission power control parameter indicated by a first range may be represented by a combination of a transmission power control parameter indicated by a second range (e.g., a second transmission power control parameter (e.g., a parameter (e.g., p0-r17) related to a transmission power offset (e.g., p0) specified in Rel. 17)) and a specific RRC parameter (e.g., which may be written as p0-r17xx).

[0229] The transmission power control parameter indicated in the first range may be signaled / defined, for example, by X bits (e.g., 8 bits), and the transmission power control parameter indicated in the second range may be signaled / defined, for example, by Y bits (e.g., 5 bits).

[0230] The specific RRC parameter may be signaled / defined, for example, by Z bits (for example, 3 bits). For example, for Z, Z=X−Y may hold.

[0231] The UE may determine the specific RRC parameter as a bit at a specific position (e.g., Most Significant Bit (MSB) / Least Significant Bit (LSB)) of the transmission power control parameter indicated by the first range.

[0232] Fig. 16 is a diagram illustrating an example of transmission power parameters according to Options 1 to 4. In the example illustrated in Fig. 16, the set of p0 and α (P0AlphaSet-r17) referenced by the transmission power control parameter for SRS (p0AlphaSetforSRS-r17) included in the UL power control parameter (Uplink-powerControl-r17) includes the transmission power control parameter (p0-r17) and specific RRC parameters (p0-r17xx) indicated in the second range.

[0233] The UE determines a combination of the transmission power control parameters (p0-r17) indicated in the second range and the specific RRC parameters (p0-r17xx) as the transmission power control parameters indicated in the first range.

[0234] According to the first embodiment described above, it is possible to relatively reduce the influence on the procedure in the physical layer of the SRS transmission power control based on the unified TCI state defined in the existing specifications, and to appropriately perform transmission power control.

[0235] Second Embodiment A set of transmission power control parameters for SRS (for example, p0AlphaSetforSRS) for the unified TCI state may be configured / instructed to the UE.

[0236] The transmission power control parameter may be, for example, at least one of a parameter (e.g., p0-r17) relating to a transmission power offset (e.g., p0) and a parameter (e.g., alpha-r17) indicating a path loss compensation coefficient (e.g., α) for UL power control.

[0237] The transmission power control parameter may be a transmission power control parameter used in setting / indicating / updating a unified TCI state (indicated TCI state).

[0238] The transmission power control parameter may be expressed as a differential power, for example.

[0239] The UE determines the transmission power of the SRS (e.g., P ＳＲＳ ) may be calculated / determined based on a first transmit power control parameter (e.g., p0) provided by specific higher layer parameters (e.g., parameters of an SRS resource set (e.g., SRS-ResourceSet) and an SRS resource set ID (e.g., SRS-ResourceSetId)) and a second transmit power control parameter (e.g., p0-r17) applied by a transmit power control parameter for SRS (e.g., p0AlphaSetforSRS) associated with the indicated TCI state (joint / UL TCI state).

[0240] The second embodiment is broadly divided into the following options 2-1 (including variations) to 2-3. The UE / NW may follow one of options 2-1 to 2-3, or a combination of at least two of options 2-1 to 2-3.

[0241] <<Option 2-1>> An RRC parameter related to the unified TCI state (for example, TCI-State or TCI-UL-State in dl-OrJointTCI-StateList) may be configured for the UE.

[0242] In this case, the UE calculates the sum of a first transmission power control parameter (e.g., p0) provided by a specific higher layer parameter (e.g., a parameter of an SRS resource set (e.g., SRS-ResourceSet) and an SRS resource set ID (e.g., SRS-ResourceSetId)) and a second transmission power control parameter (e.g., p0-r17) applied by a transmission power control parameter for SRS (e.g., p0AlphaSetforSRS) associated with the indicated TCI state (joint / UL TCI state) as P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) may also be calculated.

[0243] If the RRC parameters for the unified TCI state are not configured, the UE determines P based on a first transmit power control parameter (e.g., p0) provided by certain higher layer parameters (e.g., parameters of an SRS resource set (e.g., SRS-ResourceSet) and an SRS resource set ID (e.g., SRS-ResourceSetId)). Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) may be calculated.

[0244] P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) is the SRS resource set (q ｓ ) for the active UL BWP b of carrier f of serving cell c ０ may be.

[0245] <<Variation of Option 2-1>> The RRC parameters (e.g., followUnifiedTCI-State-r17 / followUnifiedTCI-StateSRS-r17) indicating that the UE follows the unified TCI state may not be set.

[0246] For the UE, an RRC parameter related to the unified TCI state (eg, TCI-State or TCI-UL-State in dl-OrJointTCI-StateList) may be configured.

[0247] In this case, the UE calculates the sum of a first transmission power control parameter (e.g., p0) provided by a specific higher layer parameter (e.g., a parameter of an SRS resource set (e.g., SRS-ResourceSet) and an SRS resource set ID (e.g., SRS-ResourceSetId)) and, if available, a second transmission power control parameter (e.g., p0-r17) applied by a transmission power control parameter for SRS (e.g., p0AlphaSetforSRS) associated with the indicated TCI state (joint / UL TCI state), as P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) may also be calculated.

[0248] If the RRC parameters for the unified TCI state are not configured, the UE determines P based on a first transmit power control parameter (e.g., p0) provided by certain higher layer parameters (e.g., parameters of an SRS resource set (e.g., SRS-ResourceSet) and an SRS resource set ID (e.g., SRS-ResourceSetId)). Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) may be calculated.

[0249] P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) is the SRS resource set (q ｓ ) for the active UL BWP b of carrier f of serving cell c ０ may be.

[0250] Option 2-2: The UE calculates the transmission power of the SRS (for example, the above formula D1) by using a specific term (for example, P Ｏ＿ＵＥ＿ＳＲＳ ) may be added.

[0251] The specific term may be set / provided by, for example, a second transmission power control parameter (e.g., p0-r17) applied by a transmission power control parameter for SRS (e.g., p0AlphaSetforSRS) associated with the indicated TCI state (joint / UL TCI state), or may be set / provided by a new RRC parameter specified in Rel. 18 or later.

[0252] The UE calculates the transmission power of the SRS (for example, P in the above equation D1) based on a first transmission power control parameter (for example, p0) provided by a specific upper layer parameter (for example, a parameter of an SRS resource set (for example, SRS-ResourceSet) and an SRS resource set ID (for example, SRS-ResourceSetId)). Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) may be calculated.

[0253] The UE Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) is taken as a value (e.g., P Ｏ＿ＮＯＭＩＮＡＬ＿ＰＵＳＣＨ )

[0254] The UE may use the specific term to calculate the transmission power of the SRS if at least one of the following conditions is met: - A second transmission power control parameter (for SRS) (e.g., p0-r17) is set; - A transmission power control parameter (for SRS) (e.g., p0AlphaSetforSRS) associated with the indicated TCI state (joint / UL TCI state) is set; - A unified TCI state is set for the SRS; - A TCI state is set for the SRS.

[0255] Option 2-3: The UE calculates the transmission power of the SRS (for example, the above formula D1) by subtracting the first term (for example, P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ )) instead of the second term (e.g., P Ｏ＿ＵＥ＿ＳＲＳ ) may also be used.

[0256] For example, when an RRC parameter (e.g., followUnifiedTCI-State-r17 / followUnifiedTCI-StateSRS-r17) indicating that the unified TCI state is followed for the SRS resource set is set, the second term (e.g., P Ｏ＿ＵＥ＿ＳＲＳ), α, and a power control adjustment state index may be provided.

[0257] For example, if an RRC parameter (e.g., followUnifiedTCI-State-r17 / followUnifiedTCI-StateSRS-r17) indicating that the unified TCI state is followed for the SRS resource set is not configured, the second term (e.g., P Ｏ＿ＵＥ＿ＳＲＳ ), α, and a power control adjustment state index may be provided.

[0258] At this time, P ＳＲＳ / α RS index q ｄ may be provided / configured by a pathloss reference RS ID (e.g., pathlossReferenceRS-Id-r17) associated with / included in the indicated TCI state (joint / UL TCI state) of that particular SRS resource.

[0259] The particular SRS resource may be, for example, the SRS resource corresponding to the lowest (or highest) SRS resource ID.

[0260] According to the second embodiment, the influence on information defined in existing specifications (for example, RRC parameters) can be relatively small, and transmission power control can be performed appropriately.

[0261] Third Embodiment A set of PUCCH transmission power control parameters (for example, p0AlphaSetforPUCCH) for the unified TCI state may be configured / instructed to the UE.

[0262] The transmission power control parameters may indicate, for example, at least a parameter (eg, p0-r17) related to a transmission power offset (eg, p0).

[0263] The transmission power control parameter may be a transmission power control parameter used in setting / indicating / updating a unified TCI state (indicated TCI state).

[0264] The UE may perform transmission power control of the PUCCH based on the transmission power control parameter. Ｏ＿ＵＥ＿ＰＵＣＣＨ may be calculated / determined / set / updated.

[0265] The third embodiment is roughly divided into the following options 3-1 to 3-3. The UE / NW may follow one of the options 3-1 to 3-3, or a combination of at least two of the options 3-1 to 3-3.

[0266] <<Option 3-1>> The UE may apply this embodiment when at least one of the following conditions is met: - Whether specific UE capability information is reported (Option 3-1-1). - Whether a unified TCI state is configured (Option 3-1-2). - Whether a set of PUCCH transmission power control parameters related to the unified TCI state is configured (Option 3-1-3).

[0267] Regarding option 3-1-1, for example, if the UE reports specific UE capability information, this embodiment may be applied.

[0268] Regarding option 3-1-2, for example, the UE may apply this embodiment when an upper layer parameter related to the unified TCI state (e.g., TCI-State or TCI-UL-State in dl-OrJointTCI-StateList) is configured.

[0269] For option 3-1-3, the UE may apply this embodiment if p0AlphaSetforPUCCH is configured.

[0270] 《Option 3-2》 P Ｏ＿ＵＥ＿ＰＵＣＣＨThe parameter for calculating / determining / setting / updating may be based on at least one of the following: A set of transmit power control parameters for PUCCH for the unified TCI state (e.g., p0AlphaSetforPUCCH-r17). A parameter (e.g., p0-r17) related to the transmit power offset (e.g., p0) in the set of transmit power control parameters for PUCCH for the unified TCI state (e.g., p0AlphaSetforPUCCH-r17).

[0271] <Option 3-3> If the operation according to this embodiment is not applied, the UE may assume / expect that the setting / updating of transmission power control parameters based on the unified TCI state framework will not be set / instructed.

[0272] UEs that support the unified TCI state may apply / support this embodiment.

[0273] According to the third embodiment described above, the transmission power of the PUCCH can be controlled without defining a new parameter, and implementation can be facilitated.

[0274] Fourth Embodiment A set of PUCCH transmission power control parameters (for example, p0AlphaSetforPUCCH) for the unified TCI state may be configured / instructed to the UE.

[0275] The transmission power control parameter may be, for example, at least one of a parameter (e.g., p0-r17) relating to a transmission power offset (e.g., p0) and a parameter (e.g., alpha-r17) indicating a path loss compensation coefficient (e.g., α) for UL power control.

[0276] The transmission power control parameter may be a transmission power control parameter used in setting / indicating / updating a unified TCI state (indicated TCI state).

[0277] The transmission power control parameter may be expressed, for example, as an absolute target power (absolute power).

[0278] The UE may control the transmission power of the PUCCH based on the transmission power control parameter.

[0279] The fourth embodiment is roughly divided into the following options 4-1 to 4-3. The UE / NW may follow one of the options 4-1 to 4-3, or a combination of at least two of the options 4-1 to 4-3.

[0280] <<Option 4-1>> The transmission power control parameters (e.g., p0-r17) may be indicated in a range that is an extension of the range defined up to Rel. 17.

[0281] The transmission power control parameter may, for example, be indicated in a first range.

[0282] The first range may be indicated, for example, as a range indicating absolute power (for example, a range from −202 to 24).

[0283] New higher layer (RRC) parameters for setting / indicating absolute target power may be defined. UEs may distinguish between transmit power control parameters defined up to Rel. 17 and the new RRC parameters when using them.

[0284] At least one of options 1-1 to 1-4 of the first embodiment described above may be applied by replacing SRS with PUCCH.

[0285] <<Option 4-2>> The UE may apply this embodiment when at least one of the following conditions is met: - Whether specific UE capability information is reported (Option 4-2-1). - Whether a unified TCI state is configured (Option 4-2-2). - Whether a set of PUCCH transmission power control parameters related to the unified TCI state is configured (Option 4-2-3).

[0286] Regarding option 4-3-1, for example, if the UE reports specific UE capability information, this embodiment may be applied.

[0287] Regarding option 4-3-2, for example, the UE may apply this embodiment when an upper layer parameter related to the unified TCI state (e.g., TCI-State or TCI-UL-State in dl-OrJointTCI-StateList) is configured.

[0288] For option 4-2-3, the UE may apply this embodiment if p0AlphaSetforPUCCH is configured.

[0289] <Option 4-3> If the operation according to this embodiment is not applied, the UE may assume / expect that the setting / updating of transmission power control parameters based on the unified TCI state framework will not be set / instructed.

[0290] UEs that support the unified TCI state may apply / support this embodiment.

[0291] According to the fourth embodiment, the target power for the PUCCH can be set / updated flexibly and appropriately.

[0292] <Supplementary Information> [Notification of Information to UE] In the above-described embodiments, any information may be notified to the UE (from a network (NW) (e.g., a base station (BS))) (in other words, reception of any information from the BS by the UE) using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), a specific signal / channel (e.g., PDCCH, PDSCH, reference signal), or a combination thereof.

[0293] When the notification is performed by a MAC CE, the MAC CE may be identified by including a new Logical Channel ID (LCID) in the MAC subheader, which is not defined in existing standards.

[0294] When the notification is made by DCI, the notification may be made by a specific field of the DCI, a Radio Network Temporary Identifier (RNTI) used to scramble Cyclic Redundancy Check (CRC) bits assigned to the DCI, the format of the DCI, etc.

[0295] Furthermore, notification of any information to the UE in the above embodiments may be performed periodically, semi-persistently, or aperiodically.

[0296] [Notification of Information from UE] In the above-described embodiments, notification of any information from the UE (to the NW) (in other words, transmission / report of any information from the UE to the BS) may be performed using physical layer signaling (e.g., UCI), higher layer signaling (e.g., RRC signaling, MAC CE), a specific signal / channel (e.g., PUCCH, PUSCH, PRACH, reference signal), or a combination thereof.

[0297] When the notification is performed by a MAC CE, the MAC CE may be identified by including a new LCID, which is not defined in existing standards, in the MAC subheader.

[0298] If the notification is made by UCI, the notification may be transmitted using PUCCH or PUSCH.

[0299] Furthermore, any information in the above-described embodiments may be notified from the UE periodically, semi-persistently, or aperiodically.

[0300] [Application of Each Embodiment] At least one of the above-described embodiments may be applied when a specific condition is met. The specific condition may be defined in a standard or may be notified to a UE / BS using higher layer signaling / physical layer signaling.

[0301] At least one of the above-described embodiments may be applied only to UEs that have reported or support a particular UE capability.

[0302] The specific UE capability may indicate at least one of the following: Supporting specific processing / operation / control / information for at least one of the above embodiments. Support for absolute SRS target power determination / update in the unified TCI state framework. Support for differential SRS power determination / update in the unified TCI state framework. Support for absolute PUCCH target power determination / update in the unified TCI state framework. Support for differential PUSCH power determination / update in the unified TCI state framework.

[0303] Furthermore, the above-mentioned specific UE capability may be a capability that is applied across all frequencies (commonly regardless of frequency), or may be a capability for each frequency (e.g., one or a combination of a cell, a band, a band combination, a BWP, a component carrier, etc.), or may be a capability for each frequency range (e.g., Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), or may be a capability for each subcarrier spacing (SubCarrier Spacing (SCS)), or may be a capability for each Feature Set (FS) or Feature Set Per Component-carrier (FSPC).

[0304] Furthermore, the specific UE capability may be a capability that is applied to all duplexing methods (commonly regardless of the duplexing method), or may be a capability for each duplexing method (e.g., Time Division Duplex (TDD) or Frequency Division Duplex (FDD)).

[0305] Furthermore, at least one of the above-described embodiments may be applied when specific information related to the above-described embodiments (or performing the operations of the above-described embodiments) is configured / activated / triggered in the UE by higher layer signaling / physical layer signaling. For example, the specific information may be information indicating that the operations of the above-described embodiments are enabled, any RRC parameter for a specific release (e.g., Rel. 18 / 19), etc. The RRC parameter may have a name in which "r18" / "r19" is added to the name of an existing RRC parameter.

[0306] If the UE does not support at least one of the specific UE capabilities or is not configured with the specific information, the UE may apply, for example, the behavior of Rel. 15 / 16 / 17.

[0307] (Supplementary Note A) The following inventions are added to one embodiment of the present disclosure. [Supplementary Note A-1] A terminal having: a receiving unit that receives a setting related to a Transmission Configuration Indication (TCI) state applicable to a plurality of signals and a first Sounding Reference Signal (SRS) transmit power parameter associated with the TCI state indicated by absolute power; and a control unit that performs transmit power control of the SRS based on the first SRS transmit power parameter. [Supplementary Note A-2] The terminal according to Supplementary Note A-1, wherein the first SRS transmit power parameter is indicated in a range wider than the range of a second SRS transmit power parameter associated with the TCI state indicated by differential power. [Supplementary Note A-3] The terminal according to Supplementary Note A-1 or Supplementary Note A-2, wherein the receiving unit further receives a second SRS transmit power parameter associated with the TCI state indicated by differential power, and the control unit performs transmit power control of the SRS using either the first SRS transmit power parameter or the second SRS transmit power parameter. [Supplementary Note A-4] The terminal according to any one of Supplementary Note A-1 to Supplementary Note A-3, wherein the first SRS transmission power parameter is composed of a combination of a second SRS transmission power parameter associated with the TCI state indicated by differential power and other parameters.

[0308] (Supplementary Note B) The following inventions are added to one embodiment of the present disclosure. [Supplementary Note B-1] A terminal having: a receiving unit that receives settings related to Transmission Configuration Indication (TCI) states applicable to a plurality of signals and a first Physical Uplink Control Channel (PUCCH) transmit power parameter associated with the TCI state indicated by absolute power; and a control unit that performs PUCCH transmit power control based on the first PUCCH transmit power parameter. [Supplementary Note B-2] The terminal according to Supplementary Note B-1, wherein the first PUCCH transmit power parameter is indicated in a range wider than the range of a second PUCCH transmit power parameter associated with the TCI state indicated by differential power. [Supplementary Note B-3] The terminal according to Supplementary Note B-1 or Supplementary Note B-2, wherein the receiving unit further receives a second PUCCH transmission power parameter associated with the TCI state indicated by a power difference, and the control unit performs transmission power control of the PUCCH using either the first PUCCH transmission power parameter or the second PUCCH transmission power parameter. [Supplementary Note B-4] The terminal according to any of Supplementary Note B-1 to Supplementary Note B-3, wherein the first PUCCH transmission power parameter is configured by a combination of a second PUCCH transmission power parameter associated with the TCI state indicated by a power difference and another parameter.

[0309] (Wireless Communication System) The configuration of a wireless communication system according to an embodiment of the present disclosure will be described below. In this wireless communication system, communication is performed using any one of the wireless communication methods according to the above embodiments of the present disclosure or a combination thereof.

[0310] 17 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. The wireless communication system 1 (which may be simply referred to as system 1) may be a system that realizes communication using Long Term Evolution (LTE) or 5th generation mobile communication system New Radio (5G NR) specified by the Third Generation Partnership Project (3GPP).

[0311] The wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), etc.

[0312] In EN-DC, the LTE (E-UTRA) base station (eNB) is the master node (Master Node (MN)), and the NR base station (gNB) is the secondary node (Secondary Node (SN)). In NE-DC, the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.

[0313] The wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity in which both the MN and SN are NR base stations (gNBs) (NR-NR Dual Connectivity (NN-DC))).

[0314] The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) that are located within the macrocell C1 and form small cells C2 that are smaller than the macrocell C1. A user terminal 20 may be located within at least one of the cells. The locations and numbers of the cells and user terminals 20 are not limited to the embodiment shown in the figure. Hereinafter, when there is no need to distinguish between the base stations 11 and 12, they will be collectively referred to as base station 10.

[0315] The user terminal 20 may be connected to at least one of the multiple base stations 10. The user terminal 20 may utilize at least one of carrier aggregation (CA) using multiple component carriers (CCs) and dual connectivity (DC).

[0316] 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)). The macro cell C1 may be included in FR1, and the 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 and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a higher frequency band than FR2.

[0317] Furthermore, the user terminal 20 may perform communication using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.

[0318] The multiple base stations 10 may be connected by wire (e.g., optical fiber compliant with the 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 the base stations 11 and 12, the base station 11 corresponding to the upper 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.

[0319] The base station 10 may be connected to the core network 30 directly or via another base station 10. The core network 30 may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), and the like.

[0320] The core network 30 may include network functions (Network Functions (NF)) such as a User Plane Function (UPF), an Access and Mobility management Function (AMF), a Session Management Function (SMF), a Unified Data Management (UDM), an Application Function (AF), a Data Network (DN), a Location Management Function (LMF), and Operation, Administration and Maintenance (Management) (OAM). A single network node may provide multiple functions. Communication with an external network (e.g., the Internet) may also be performed via the DN.

[0321] The user terminal 20 may be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.

[0322] An Orthogonal Frequency Division Multiplexing (OFDM)-based radio access scheme may be used in the wireless communication system 1. For example, 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), or the like may be used in at least one of the downlink (DL) and uplink (UL).

[0323] The radio access scheme may also be called a waveform. Note that in the wireless communication system 1, other radio access schemes (e.g., other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the UL and DL radio access schemes.

[0324] In the wireless communication system 1, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20, a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc. may be used as the downlink channel.

[0325] Furthermore, in the wireless communication system 1, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20, an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), or the like may be used as an uplink channel.

[0326] The PDSCH transmits user data, higher layer control information, a System Information Block (SIB), etc. The PUSCH may transmit user data, higher layer control information, etc. Furthermore, the PBCH may transmit a Master Information Block (MIB).

[0327] Lower layer control information may be transmitted by the PDCCH. The lower layer control information may include, for example, Downlink Control Information (DCI) including scheduling information for at least one of the PDSCH and the PUSCH.

[0328] Note that the DCI for scheduling the PDSCH may be referred to as a DL assignment, a DL DCI, etc., and the DCI for scheduling the PUSCH may be referred to as a UL grant, a UL DCI, etc. Note that the PDSCH may be replaced with DL data, and the PUSCH may be replaced with UL data.

[0329] A control resource set (CORESET) and a search space may be used to detect the PDCCH. The CORESET corresponds to resources for searching for DCI. The search space corresponds to a search region and a 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.

[0330] 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 terms "search space," "search space set," "search space configuration," "search space set configuration," "CORESET," "CORESET configuration," and the like in the present disclosure may be read interchangeably.

[0331] The PUCCH may transmit uplink control information (UCI) including at least one of channel state information (CSI), delivery confirmation information (which may be called, for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR). The PRACH may transmit a random access preamble for establishing a connection with a cell.

[0332] In the present disclosure, downlink, uplink, etc. may be expressed without adding "link." Also, various channels may be expressed without adding "Physical" to the beginning.

[0333] In the wireless communication system 1, a synchronization signal (SS), a downlink reference signal (DL-RS), etc. may be transmitted. In the wireless communication system 1, as the DL-RS, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), etc. may be transmitted.

[0334] The synchronization signal may be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). A signal block including an SS (PSS, SSS) and a PBCH (and a DMRS for the PBCH) may be referred to as an SS / PBCH block, an SS Block (SSB), or the like. Note that the SS, SSB, and the like may also be referred to as a reference signal.

[0335] Furthermore, in the wireless communication system 1, a sounding reference signal (SRS), a demodulation reference signal (DMRS), or the like may be transmitted as an uplink reference signal (UL-RS). Note that the DMRS may also be called a user equipment-specific reference signal (UE-specific reference signal).

[0336] (Base Station) Fig. 18 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 transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140. Note that the base station may include one or more of each of the control unit 110, the transceiver unit 120, the transceiver antenna 130, and the transmission line interface 140.

[0337] In this example, the functional blocks of the characteristic parts of 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 processing of each unit described below may be omitted.

[0338] The control unit 110 performs overall control of the base station 10. The control unit 110 can be configured from a controller, a control circuit, and the like that are explained based on common understanding in the technical field to which the present disclosure relates.

[0339] The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may control transmission and reception using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140, measurement, etc. The control unit 110 may generate data, control information, sequences, etc. to be transmitted as signals, and transfer them to the transceiver unit 120. The control unit 110 may perform call processing (setting up, releasing, etc.) of communication channels, status management of the base station 10, management of radio resources, etc.

[0340] The transceiver unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transceiver unit 120 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0341] The transmitting / receiving unit 120 may be configured as an integrated transmitting / receiving unit, or may be configured from a transmitting unit and a receiving unit. The transmitting unit may be configured from a transmission processing unit 1211 and an RF unit 122. The receiving unit may be configured from a reception processing unit 1212, the RF unit 122, and a measurement unit 123.

[0342] The transmitting and receiving antenna 130 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure relates, such as an array antenna.

[0343] The transceiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 120 may receive the above-mentioned uplink channel, uplink reference signal, etc.

[0344] The transceiver 120 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0345] The transmitter / receiver unit 120 (transmission processing unit 1211) may perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 110, and generate a bit string to be transmitted.

[0346] The transmitter / receiver unit 120 (transmission processing unit 1211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0347] The transceiver unit 120 (RF unit 122) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 130.

[0348] On the other hand, the transmitting / receiving unit 120 (RF unit 122) may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transmitting / receiving antenna 130.

[0349] The transceiver 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 to the acquired baseband signal, thereby acquiring user data, etc.

[0350] The transceiver 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.

[0351] The transmission path interface 140 may transmit and receive signals (backhaul signaling) between devices included in the core network 30 (e.g., network nodes that provide NF), other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0352] The transmitting section and receiving section of the base station 10 in the present disclosure may be configured by at least one of the transmitting / receiving section 120, the transmitting / receiving antenna 130, and the transmission path interface 140.

[0353] The transceiver 120 may transmit a configuration for a Transmission Configuration Indication (TCI) state (unified TCI state) applicable to a plurality of signals and a first Sounding Reference Signal (SRS) transmit power parameter associated with the TCI state, the first SRS transmit power parameter being expressed in absolute power. The controller 110 may instruct SRS transmit power control using the first SRS transmit power parameter (first and second embodiments).

[0354] The transceiver 120 may transmit a configuration for a Transmission Configuration Indication (TCI) state (unified TCI state) applicable to a plurality of signals and a first Physical Uplink Control Channel (PUCCH) transmit power parameter associated with the TCI state, the first PUCCH transmit power parameter being expressed in absolute power. The controller 110 may instruct PUCCH transmit power control using the first PUCCH transmit power parameter (third and fourth embodiments).

[0355] (User Terminal) Fig. 19 is a diagram showing an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transceiver unit 220, and a transceiver antenna 230. Note that the user terminal may include one or more of each of the control unit 210, the transceiver unit 220, and the transceiver antenna 230.

[0356] In this example, the functional blocks of the characteristic parts of the present embodiment are mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0357] The control unit 210 performs overall control of the user terminal 20. The control unit 210 can be configured from a controller, a control circuit, etc., which are described based on common understanding in the technical field to which the present disclosure relates.

[0358] The control unit 210 may control signal generation, mapping, etc. The control unit 210 may control transmission and reception, measurement, etc. using the transceiver unit 220 and the transceiver antenna 230. The control unit 210 may generate data, control information, sequences, etc. to be transmitted as signals and transfer them to the transceiver unit 220.

[0359] The transceiver unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transceiver unit 220 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0360] The transmitting / receiving unit 220 may be configured as an integrated transmitting / receiving unit, or may be composed of a transmitting unit and a receiving unit. The transmitting unit may be composed of a transmission processing unit 2211 and an RF unit 222. The receiving unit may be composed of a reception processing unit 2212, an RF unit 222, and a measurement unit 223.

[0361] The transmitting / receiving antenna 230 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure relates, such as an array antenna.

[0362] The transceiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0363] The transceiver unit 220 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0364] The transceiver unit 220 (transmission processing unit 2211) may perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 210, and generate a bit string to be transmitted.

[0365] The transmitter / receiver 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, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0366] Whether or not to apply DFT processing may be based on the setting of transform precoding. When transform precoding is enabled for a certain channel (e.g., PUSCH), the transceiver unit 220 (transmission processing unit 2211) may perform DFT processing as the transmission processing to transmit the channel using a DFT-s-OFDM waveform, and if not, it may not be necessary to perform DFT processing as the transmission processing.

[0367] The transceiver unit 220 (RF unit 222) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 230.

[0368] On the other hand, the transceiver unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 230.

[0369] The transceiver 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.

[0370] The transceiver 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), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

[0371] The measurement unit 223 may derive channel measurements for CSI calculation based on the channel measurement resources. The channel measurement resources may be, for example, non-zero power (NZP) CSI-RS resources. The measurement unit 223 may also derive interference measurements for CSI calculation based on the interference measurement resources. The interference measurement resources may be at least one of an NZP CSI-RS resource for interference measurement, a CSI-Interference Measurement (IM) resource, etc. Note that CSI-IM may be referred to as CSI-Interference Management (IM) or may be interchangeably read as Zero Power (ZP) CSI-RS. Note that in the present disclosure, CSI-RS, NZP CSI-RS, ZP CSI-RS, CSI-IM, CSI-SSB, etc. may be interchangeably read as interchangeable.

[0372] The transmitting unit and receiving unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmitting / receiving unit 220 and the transmitting / receiving antenna 230.

[0373] The transceiver 220 may receive a configuration for a Transmission Configuration Indication (TCI) state (unified TCI state) applicable to a plurality of signals and a first Sounding Reference Signal (SRS) transmit power parameter associated with the TCI state, the first SRS transmit power parameter being expressed in absolute power. The controller 210 may control the transmit power of the SRS based on the first SRS transmit power parameter (first and second embodiments).

[0374] The first SRS transmission power parameter may be indicated in a range wider than the range of the second SRS transmission power parameter associated with the TCI state indicated by a differential power (first embodiment).

[0375] The transceiver 220 may further receive a second SRS transmission power parameter associated with the TCI state indicated by the differential power. The controller 210 may control the transmission power of the SRS using either the first SRS transmission power parameter or the second SRS transmission power parameter (first embodiment).

[0376] The first SRS transmission power parameter may be configured by a combination of a second SRS transmission power parameter associated with the TCI state indicated by a differential power and other parameters (first embodiment).

[0377] The transceiver 220 may receive a configuration for a Transmission Configuration Indication (TCI) state (unified TCI state) applicable to a plurality of signals and a first Physical Uplink Control Channel (PUCCH) transmit power parameter associated with the TCI state, the first PUCCH transmit power parameter being expressed in absolute power. The controller 210 may perform PUCCH transmit power control based on the first PUCCH transmit power parameter (third and fourth embodiments).

[0378] The first PUCCH transmission power parameter may be indicated in a range wider than the range of the second PUCCH transmission power parameter associated with the TCI state indicated by a differential power (fourth embodiment).

[0379] The transceiver 220 may further receive a second PUCCH transmission power parameter associated with the TCI state indicated by a power difference. The controller 210 may perform transmission power control of the PUCCH using either the first PUCCH transmission power parameter or the second PUCCH transmission power parameter (fourth embodiment).

[0380] The first PUCCH transmission power parameter may be configured by a combination of a second PUCCH transmission power parameter associated with the TCI state indicated by a differential power and other parameters (fourth embodiment).

[0381] (Hardware Configuration) Note that the block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wires, wirelessly, etc.) and these multiple devices. The functional block may be realized by combining software with the single device or the multiple devices.

[0382] Here, the functions include, but are not limited to, judgment, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, deeming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission may be called a transmitting unit, transmitter, etc. As described above, the implementation method of each is not particularly limited.

[0383] For example, a base station, a user terminal, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 20 is a diagram illustrating 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 be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0384] In the present disclosure, the terms apparatus, circuit, device, section, unit, etc. may be used interchangeably. The hardware configurations of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the drawings, or may be configured to exclude some of the devices.

[0385] For example, although only one processor 1001 is shown, there may be multiple processors. Furthermore, processing may be performed by one processor, or processing may be performed by two or more processors simultaneously, serially, or in other ways. Furthermore, processor 1001 may be implemented by one or more chips.

[0386] Each function in the base station 10 and the user terminal 20 is realized, for example, by loading specified software (programs) onto hardware such as a processor 1001 and a memory 1002, causing the processor 1001 to perform calculations, control communication via the communication device 1004, and control at least one of reading and writing data in the memory 1002 and the storage 1003.

[0387] The processor 1001, for example, runs an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, at least a part of the above-mentioned control unit 110 (210), transceiver unit 120 (220), etc. may be realized by the processor 1001.

[0388] The processor 1001 also reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and the other functional blocks may be implemented in a similar manner.

[0389] The memory 1002 is a computer-readable recording medium and may be configured by at least one of, for example, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EEPROM (EEPROM), Random Access Memory (RAM), or other suitable storage medium. The memory 1002 may also be referred to as a register, cache, main memory, etc. The memory 1002 may store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.

[0390] Storage 1003 is a computer-readable recording medium and may be composed of at least one of, for example, a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disc (e.g., a Compact Disc ROM (CD-ROM)), a digital versatile disc, a Blu-ray 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, or other suitable storage medium. Storage 1003 may also be referred to as an auxiliary storage device.

[0391] The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, or a communication module. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmission / reception unit 120 (220), transmission / reception antenna 130 (230), etc. may be realized by the communication device 1004. The transmission / reception unit 120 (220) may be implemented as a transmission unit 120a (220a) and a reception unit 120b (220b) that are physically or logically separated.

[0392] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, a light emitting diode (LED) lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).

[0393] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0394] Furthermore, the base station 10 and the user terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized using this hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0395] (Modifications) Note that terms described in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may be interchangeable. A signal may also be a message. A reference signal may be abbreviated as RS, and may also be called a pilot, pilot signal, etc. depending on the applicable standard. A component carrier (CC) may also be called a cell, frequency carrier, carrier frequency, etc.

[0396] A radio frame may be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting a radio frame may be called a subframe. Furthermore, a subframe may be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0397] Here, the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel, and may indicate at least one of, for example, Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering performed by a transceiver in the frequency domain, and specific windowing performed by a transceiver in the time domain.

[0398] A slot may be composed of one or more symbols (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol) in the time domain. A slot may also be a time unit based on numerology.

[0399] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (PUSCH) mapping type B.

[0400] A radio frame, a subframe, a slot, a minislot, and a symbol all represent time units for transmitting signals. The radio frame, the subframe, the slot, the minislot, and the symbol may be referred to by other names corresponding to the radio frame, the subframe, the slot, the minislot, and the symbol. Note that the time units such as a frame, a subframe, a slot, a minislot, and a symbol in the present disclosure may be interchangeable.

[0401] For example, one subframe may be referred to as a TTI, or multiple consecutive subframes may be referred to as a TTI, or one slot or one minislot may be referred to as a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0402] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as 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 TTI is not limited to this.

[0403] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0404] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0405] A TTI having a time length of 1 ms may be called a regular TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0406] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and greater than or equal to 1 ms.

[0407] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may be determined based on numerology.

[0408] In addition, an RB may include one or more symbols in the time domain and may have a length of one slot, one minislot, one subframe, or one TTI, each of which may be composed of one or more resource blocks.

[0409] In addition, one or more RBs may be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0410] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0411] A Bandwidth Part (BWP), which may also be referred to as a partial bandwidth, may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a Common Reference Point of the carrier. PRBs may be defined in a BWP and numbered within the BWP.

[0412] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). One or more BWPs may be configured for a UE within one carrier.

[0413] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0414] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc. may be changed in various ways.

[0415] Furthermore, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values ​​from a predetermined value, or may be expressed using other corresponding information. For example, a radio resource may be indicated by a predetermined index.

[0416] The names used for parameters and the like in this disclosure are not intended to be limiting in any way. Furthermore, the mathematical expressions and the like using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0417] The information, signals, etc. described in this disclosure may be represented using any of a variety of 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 voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0418] Furthermore, information, signals, etc. may be output from a higher layer to a lower layer and / or from a lower layer to a higher layer. Information, signals, etc. may be input / output via multiple network nodes.

[0419] Input and output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input and output information, signals, etc. may be overwritten, updated, or added. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to another device.

[0420] The notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information in the present disclosure may be performed by physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB) and System Information Block (SIB)), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0421] Note that the physical layer signaling may be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. Furthermore, the RRC signaling may be referred to as an RRC message, such as an RRC Connection Setup message or an RRC Connection Reconfiguration message. Furthermore, the MAC signaling may be notified using, for example, a MAC Control Element (CE).

[0422] Furthermore, notification of specified information (e.g., notification that "it is X") is not limited to explicit notification, but may be made implicitly (e.g., by not notifying the specified information or by notifying other information).

[0423] The determination may be made by a value represented by one bit (0 or 1), by a Boolean value represented by true or false, or by a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0424] Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0425] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), these wired and / or wireless technologies are included within the definition of transmission media.

[0426] As used in this disclosure, the terms "system" and "network" may be used interchangeably. A "network" may refer to devices included in the network (e.g., base stations).

[0427] In this disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "Quasi-Co-Location (QCL)," "Transmission Configuration Indication state (TCI state)," "spatial relation," "spatial domain filter," "transmit power," "phase rotation," "antenna port," "layer," "number of layers," "rank," "resource," "resource set," "beam," "beam width," "beam angle," "antenna," "antenna element," "panel," "UE panel," "transmitting entity," "receiving entity," etc. may be used interchangeably.

[0428] In the present disclosure, the term "antenna port" may be interchangeably read as an antenna port for any signal / channel (e.g., a demodulation reference signal (DMRS) port). In the present disclosure, the term "resource" may be interchangeably read as a resource for any signal / channel (e.g., a reference signal resource, an SRS resource, etc.). The resource may include time / frequency / code / space / power resources. Furthermore, the spatial domain transmission filter may include at least one of a spatial domain transmission filter and a spatial domain reception filter.

[0429] The group may include, for example, at least one of a spatial relationship group, a Code Division Multiplexing (CDM) group, a Reference Signal (RS) group, a Control Resource Set (CORESET) group, a PUCCH group, an antenna port group (e.g., a DMRS port group), a layer group, a resource group, a beam group, an antenna group, a panel group, and the like.

[0430] In addition, in the present disclosure, beam, SRS Resource Indicator (SRI), CORESET, CORESET pool, PDSCH, PUSCH, codeword (CW), transport block (TB), RS, etc. may be read as interchangeable terms.

[0431] In addition, in the present disclosure, the terms TCI state, downlink TCI state (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, joint TCI state, etc. may be read interchangeably.

[0432] Furthermore, in the present disclosure, terms such as "QCL," "QCL assumption," "QCL relationship," "QCL type information," "QCL property / properties," "specific QCL type (e.g., Type A, Type D) property," and "specific QCL type (e.g., Type A, Type D)" may be interchangeable.

[0433] In the present disclosure, terms such as index, identifier (ID), indicator, indication, and resource ID may be interchangeable. In the present disclosure, terms such as sequence, list, set, group, cluster, and subset may be interchangeable.

[0434] Furthermore, the spatial relationship information identifier (ID) (TCI state ID) and the spatial relationship information (TCI state) may be interchangeable. The "spatial relationship information (TCI state)" may be interchangeable with "set of spatial relationship information (TCI state)", "one or more pieces of spatial relationship information", etc. The TCI state and the TCI may be interchangeable. The spatial relationship information and the spatial relationship may be interchangeable.

[0435] 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. may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, picocell, etc.

[0436] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be partitioned into multiple smaller areas, and each smaller area can be provided with communication service by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The terms "cell" or "sector" refer to part or all of the coverage area of ​​a base station and / or base station subsystem that provides communication service within that coverage.

[0437] In the present disclosure, a base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control / operate based on the information.

[0438] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0439] A mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0440] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc. Note that at least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.

[0441] The mobile body is a movable object that can move at any speed and naturally includes cases where the mobile body is stationary. Examples of the mobile body include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones, multicopters, quadcopters, balloons, and objects mounted thereon. The mobile body may also be a mobile body that moves autonomously based on an operation command.

[0442] The mobile object may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Note that at least one of the base station and the mobile station may also include devices that do 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.

[0443] 21 is a diagram showing an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, an electronic control unit 49, various sensors (including a current sensor 50, an RPM sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0444] The drive unit 41 is configured with at least one of an engine, a motor, and a hybrid of an engine and a motor, for example. The steering unit 42 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by a user.

[0445] The electronic control unit 49 is composed of a microprocessor 61, memory (ROM, RAM) 62, and a communication port (for example, an input / output (IO) port) 63. Signals are input to the electronic control unit 49 from various sensors 50-58 provided in the vehicle. The electronic control unit 49 may also be called an Electronic Control Unit (ECU).

[0446] The signals from the various sensors 50-58 include a current signal from a current sensor 50 that senses the current of the motor, a rotation speed signal of the front wheels 46 / rear wheels 47 obtained by a rotation speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 obtained by an air pressure sensor 52, a vehicle speed signal obtained by a vehicle speed sensor 53, an acceleration signal obtained by an acceleration sensor 54, a depression amount signal of the accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 obtained by a brake pedal sensor 56, an operation signal of the shift lever 45 obtained by a shift lever sensor 57, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58.

[0447] The information service unit 59 is composed of various devices, such as a car navigation system, an audio system, speakers, a display, a television, and a radio, for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 59 uses information acquired from external devices via the communication module 60 or the like to provide various information / services (e.g., multimedia information / multimedia services) to the occupants of the vehicle 40.

[0448] The information service unit 59 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0449] The driving assistance system unit 64 includes various devices for providing functions to prevent accidents and reduce the driver's driving burden, such as millimeter-wave radar, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyro systems (e.g., Inertial Measurement Units (IMUs), Inertial Navigation Systems (INSs)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driving assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driving assistance functions or autonomous driving functions.

[0450] The communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) via the communication port 63 to and from the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58, which are provided in the vehicle 40.

[0451] The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with an external device. For example, it transmits and receives various information to and from the external device via wireless communication. The communication module 60 may be located either inside or outside the electronic control unit 49. The external device may be, for example, the base station 10 or the user terminal 20 described above. Furthermore, the communication module 60 may be, for example, at least one of the base station 10 and the user terminal 20 described above (or may function as at least one of the base station 10 and the user terminal 20).

[0452] The communication module 60 may transmit at least one of signals from the above-mentioned various sensors 50-58 input to the electronic control unit 49, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 59 to an external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 60 may include information based on the above-mentioned input.

[0453] The communication module 60 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from an external device and displays it on an information service unit 59 provided in the vehicle. The information service unit 59 may also be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH received by the communication module 60 (or data / information decoded from the PDSCH)).

[0454] Furthermore, the communication module 60 stores various information received from external devices in a memory 62 that can be used by the microprocessor 61. Based on the information stored in the memory 62, the microprocessor 61 may control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, various sensors 50-58, and the like provided in the vehicle 40.

[0455] Furthermore, a base station in the present disclosure may be read as a user terminal. For example, the aspects / embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D) or Vehicle-to-Everything (V2X)). In this case, the user terminal 20 may be configured to have the functions of the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to terminal-to-terminal communication (for example, "sidelink"). For example, terms such as an uplink channel and a downlink channel may be read as a sidelink channel.

[0456] Similarly, the user terminal in the present disclosure may be read as a base station, in which case the base station 10 may be configured to have the functions of the user terminal 20 described above.

[0457] In the present disclosure, an operation described as being performed by a base station may be performed by its upper node in some cases. It is apparent that in a network including one or more network nodes having a base station, various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (such as, but not limited to, a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc.), or a combination thereof.

[0458] Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Furthermore, the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0459] Each aspect / embodiment described in the present disclosure may be a technology other than 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 decimal number)), 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 802.17 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (Wi-Fi (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (Wi-Fi (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), IEEE 802. The present invention may be applied to systems that use IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other suitable wireless communication methods, or to next-generation systems that are expanded, modified, created, or defined based on these. Furthermore, the present invention may be applied to a combination of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

[0460] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0461] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0462] The term "determining" as used in this disclosure may encompass a wide variety of actions. For example, "determining" may be considered to be judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry (e.g., looking up in a table, database, or another data structure), ascertaining, etc.

[0463] Additionally, "determining" may be considered to be "determining" receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), etc.

[0464] Furthermore, "determination" may be considered to be "determining" resolving, selecting, choosing, establishing, comparing, etc. In other words, "determination" may be considered to be "determining" some kind of action. In the present disclosure, "determination" may be read interchangeably with the above-mentioned actions.

[0465] Furthermore, in this disclosure, "determine / determining" may be interchangeably read as "assume / assuming," "expect / expecting," "consider / considering," etc. Furthermore, in this disclosure, "does not expect to do..." may be interchangeably read as "assumes not to do...."

[0466] In the present disclosure, "expect" may be interchangeably read as "be expected." For example, "expect(s) ..." ("..." may be expressed, for example, as a that clause, a to-infinitive, etc.) may be interchangeably read as "be expected ...." "does not expect ..." may be interchangeably read as "be not expected ...." Furthermore, "An apparatus A is not expected ..." may be interchangeably read as "an apparatus B other than apparatus A does not expect ... from apparatus A" (e.g., if apparatus A is a UE, apparatus B may be a base station).

[0467] The "maximum transmit power" in this disclosure may mean the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0468] As used in this disclosure, the terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access."

[0469] In this disclosure, when two elements are connected, they may be considered to be "connected" or "coupled" to one another using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy having wavelengths in the radio frequency range, microwave range, light (both visible and invisible) range, etc., as some non-limiting and non-exhaustive examples.

[0470] In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0471] When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

[0472] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0473] In the present disclosure, terms such as "less than or equal to," "less than," "greater than," "more than," "equal to," etc. may be interchangeable. Furthermore, in the present disclosure, terms meaning "good," "bad," "big," "small," "high," "low," "fast," "slow," "wide," "narrow," etc. may be interchangeable, not limited to the positive, comparative, and superlative. Furthermore, in the present disclosure, terms meaning "good," "bad," "big," "small," "high," "low," "fast," "slow," "wide," "narrow," etc. may be interchangeable, not limited to the positive, comparative, and superlative, as expressions with "i-th" (i is an arbitrary integer) attached (for example, "highest" may be interchangeable with "i-th highest").

[0474] In this disclosure, the terms "of," "for," "regarding," "related to," "associated with," etc. may be read interchangeably.

[0475] In the present disclosure, terms such as "when A, B," "if A, (then) B," "B upon A," "B in response to A," "B based on A," "B during / while A," "B before A," "B at (the same time as) / on A," "B after A," "B since A," and "B until A" may be interchangeable. Note that A, B, and the like herein may be replaced with appropriate expressions such as nouns, gerunds, and regular sentences, depending on the context. Note that the time difference between A and B may be approximately zero (immediately after or immediately before). A time offset may also be applied to the time at which A occurs. For example, "A" may be interchangeable with "before / after a time offset at which A occurs." The time offset (eg, one or more symbols / slots) may be predefined or may be specified by the UE based on signaled information.

[0476] In the present disclosure, timing, time, duration, time instance, any time unit (e.g., slot, subslot, symbol, subframe), period, occasion, resource, etc. may be read interchangeably.

[0477] Although the invention according to the present disclosure has been described in detail above, it is clear 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 description of the present disclosure is for illustrative purposes only and does not impose any limiting meaning on the invention according to the present disclosure.

Claims

1. A receiving unit that receives settings related to Transmission Configuration Indication (TCI) states applicable to multiple signals, and a set of physical uplink control channel (PUCCH) transmit power parameters associated with the TCI states, A terminal having a control unit that controls the transmission power of a PUCCH based on the PUCCH transmission power parameters included in the PUCCH transmission power parameter set.

2. The steps include receiving a setting for a Transmission Configuration Indication (TCI) state applicable to multiple signals, and a set of physical uplink control channel (PUCCH) transmit power parameters associated with the TCI state, A wireless communication method for a terminal, comprising the steps of controlling the transmit power of a PUCCH based on a PUCCH transmit power parameter included in the PUCCH transmit power parameter set.

3. A transmitting unit that transmits a setting for a Transmission Configuration Indication (TCI) state applicable to multiple signals, and a set of physical uplink control channel (PUCCH) transmit power parameters associated with the TCI state, A base station having a control unit that instructs the transmission power of a PUCCH using the PUCCH transmission power parameters included in the PUCCH transmission power parameter set.

4. A system having a terminal and a base station, The aforementioned terminal is A receiving unit that receives settings related to Transmission Configuration Indication (TCI) states applicable to multiple signals, and a set of physical uplink control channel (PUCCH) transmit power parameters associated with the TCI states, The system includes a control unit that controls the transmission power of a PUCCH based on the PUCCH transmission power parameters included in the PUCCH transmission power parameter set, The aforementioned base station is A system having a transmitting unit that transmits the settings related to the TCI state and the PUCCH transmit power parameter set.