Terminals, wireless communication methods, base stations and systems

Abstract

A terminal according to one aspect of the present disclosure is characterized by comprising: a reception unit that, when uplink (UL) simultaneous transmission from a multi-panel is supported, receives setting relating to transmission power of each panel; and a control unit that controls UL transmission power for each panel on the basis of the setting. According to the one aspect of the present disclosure, it is possible to appropriately perform transmission power control of each panel.

Description

[Technical Field]

[0001] This disclosure relates to terminals and wireless communication methods in next-generation mobile communication systems. 、 base station and system Regarding. [Background technology]

[0002] Long Term Evolution (LTE) was specified for Universal Mobile Telecommunications System (UMTS) networks with the aim of achieving even higher data rates and lower latency (Non-Patent Document 1). Furthermore, LTE-Advanced (3GPP Rel.10-14) was specified for the aim of further increasing capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).

[0003] Successor systems to LTE (for example, 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 and later, etc.) are also being considered. [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] 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 [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] In future wireless communication systems, the UE (Unified Aircraft) may use one of its multi-panel (or multi-beam) configurations for uplink (UL) transmission. Furthermore, to improve UL throughput and reliability, support for simultaneous UL transmission using multiple panels (e.g., simultaneous multi-panel UL transmission (SiMPUL)) to one or more transmission / reception points (TRPs) is being considered.

[0006] However, the control of each panel's transmit power when multi-panel simultaneous UL transmission is supported remains unclear. This could lead to improper transmission control for each panel, potentially resulting in reduced communication throughput.

[0007] Therefore, this disclosure provides a terminal and wireless communication method that can appropriately control the transmission power for each panel. 、 base station and system One of the objectives is to provide [this]. [Means for solving the problem]

[0008] A terminal relating to one aspect of this disclosure supports simultaneous uplink (UL) transmission from multiple panels, Transmission Configuration Indication state (TCI state) Every UL A receiving unit that receives settings related to the transmission power, and the setting and maximum output power for each TCI state Based on, TCI status A control unit that controls the UL transmission power for each transmission, The measured peak effective isotropically radiated power (EIRP) corresponding to the maximum output power satisfies the requirements defined using power management maximum power reduction (P-MPR) for each TCI state. It is characterized by the following: [Effects of the Invention]

[0009] According to one aspect of this disclosure, the transmission power can be appropriately controlled for each panel. [Brief explanation of the drawing]

[0010] [Figure 1] Figures 1A and 1C show examples of PUSCH transmission using multiple panels. [Figure 2] Figures 2A and 2B show examples of PUCCH transmission using multiple panels. [Figure 3] Figure 3A shows an example of simultaneous PUSCH transmission using two panels. Figure 3B shows an example of simultaneous PUCCH transmission using two panels. Figure 3C shows an example of simultaneous SRS transmission using two panels. [Figure 4] Figure 4 shows the relationship between UE power class and UE type. [Figure 5] Figure 5 shows an example of a PHR MAC CE including the maximum output power for each panel, PCMAXpanel,f,c,p. [Figure 6] Figure 6A shows an example where the transmission power is distributed equally to each transmitting panel. Figure 6B shows an example where the transmission power is distributed differently to each transmitting panel. [Figure 7] Figure 7 shows an example of a schematic configuration of a wireless communication system according to one embodiment. [Figure 8] Figure 8 shows an example of the configuration of a base station according to one embodiment. [Figure 9] Figure 9 shows an example of the configuration of a user terminal according to one embodiment. [Figure 10] Figure 10 shows an example of the hardware configuration of a base station and a user terminal according to one embodiment. [Figure 11] Figure 11 shows an example of a vehicle according to one embodiment. [Modes for carrying out the invention]

[0011] (Multi-panel transmission) In Rel.15 and Rel.16 UEs, only one beam and panel are used for UL transmission at a single point in time (Figure 1A). In Rel.17, to improve UL throughput and reliability, simultaneous multi-beam and multi-panel UL transmission is being considered for one or more transmission / reception points (TRPs).

[0012] For simultaneous UL transmissions using multi-beam and multi-panel systems, reception by a single TRP with multiple panels (Figure 1B) or reception by two TRPs with ideal backhaul (Figure 1C) is being considered. A single PDCCH is being considered for scheduling multiple PUSCHs (e.g., simultaneous transmission of PUSCH#1 and PUSCH#2). Support for panel-specific transmissions and the introduction of panel IDs are being considered.

[0013] A base station may configure or instruct panel-specific transmissions for UL transmissions using a UL Transmission Configuration Indication (TCI) or panel ID. UL TCI (UL TCI state) may be based on signaling similar to DL beam indications supported in Rel. 15. A panel ID may be implicitly or explicitly applied to at least one transmission of a target RS resource or target RS resource set, PUCCH, SRS, and PRACH. If a panel ID is explicitly communicated, it may be configured in at least one of the target RS, target channel, and reference RS (e.g., DL RS resource configuration or spatial relationship information).

[0014] In simultaneous UL transmission using a multi-panel, the UE may transmit on multiple physical uplink control channels (PUCCHs). The following schemes 1 and 2 have been considered as transmission methods for simultaneous UL transmission using a multi-panel for PUCCHs.

[0015] [Scheme 1] Two PUCCH resources overlap in the time domain and are transmitted simultaneously. Each of the two PUCCH resources is associated with one different panel / beam (see Figure 2A). Each of the two beams is transmitted towards its respective TRP.

[0016] [Scheme 2] One PUCCH resource is transmitted simultaneously using two panel / spatial relationships. One PUCCH resource is associated with two panels / beams (see Figure 2B). Each of the two beams is transmitted towards its respective TRP.

[0017] Although the explanation uses the example of two multi-panels, the number of panels may be three or more in this disclosure. In other words, the number of panels, 2, may be interpreted as 3 or more.

[0018] Furthermore, Scheme 2 may be applied to the repetition of PUCCH in a single-frequency network (SFN).

[0019] (UL TCI state) In Rel.16 NR, the use of the UL TCI state as a beam designation method for UL is being considered. Notification of the UL TCI state is similar to notification of the UE DL beam (DL TCI state). Note that the DL TCI state may be interpreted interchangeably with the TCI state for PDCCH / PDSCH.

[0020] The channel / signal (which may also be called the target channel / RS) on which the UL TCI state is set (specified) may be at least one of the following: PUSCH (DMRS for PUSCH), PUCCH (DMRS for PUCCH), Random Access Channel (Physical Random Access Channel (PRACH)), SRS, etc.

[0021] Also, the RS (source RS) related to the channel / signal and QCL may be, for example, a DL RS (e.g., SSB, CSI-RS, TRS, etc.) or a UL RS (e.g., SRS, SRS for beam management, etc.).

[0022] In the UL TCI state, the RS related to the channel / signal and QCL may be associated with the panel ID for receiving or transmitting the RS. This association may be explicitly set (or specified) by upper layer signaling (e.g., RRC signaling, MAC CE, etc.) or may be implicitly determined.

[0023] The correspondence between the RS and the panel ID may be set and included in the UL TCI state information, or may be set and included in at least one of the resource setting information, spatial relationship information, etc. of the RS.

[0024] The QCL type indicated by the UL TCI state may be the existing QCL types A - D, other QCL types, or may include a predetermined spatial relationship, related antenna ports (port indices), etc.

[0025] For UL transmission, when the UE is specified with the relevant panel ID (e.g., specified by DCI), the UE may perform the UL transmission using the panel corresponding to the panel ID. The panel ID may be associated with the UL TCI state. When the UE is specified (or activated) with the UL TCI state for a predetermined UL channel / signal, the UE may identify the panel to be used for the UL channel / signal transmission according to the panel ID related to the UL TCI state.

[0026] (Transmission Power Control) <Transmission Power Control for PUSCH> In NR (e.g., Rel.16), the transmit power of the pusher is controlled based on the TPC command (also called the value, increment / decrement value, correction value, etc.) indicated by the value of a predetermined field in the DCI (also called the TPC command field, etc.).

[0027] For example, when a UE transmits a PUSCH on the active UL BWP b of carrier f of serving cell c using a parameter set with index j (open-loop parameter set) and a power control adjustment state index l, the transmit power (P) of the PUSCH during the transmission occasion (also called the transmission period, etc.) i is calculated. PUSCH、b,f,c (i,j,q d ,l)) may also be expressed by the following formula (1).

[0028]

number

[0029] Here, the power control adjustment state may be configured by a higher-level parameter to have multiple states (e.g., two states) or a single state. Furthermore, if multiple power control adjustment states are configured, one of these states may be identified by an index l (e.g., l ∈ {0, 1}). The power control adjustment state may be referred to as the PUSCH power control adjustment state, the first or second state, etc.

[0030] Furthermore, the PUSCH transmission opportunity i is a predetermined period during which PUSCH is transmitted, and may consist of, for example, one or more symbols, one or more slots, etc.

[0031] In equation (1), P CMAX,f,c(i)is the transmission power of the user terminal (also referred to as the maximum transmission power, UE maximum output power, etc.) set for carrier f of the serving cell c at transmission opportunity i. P O_PUSCH,b,f,c (j) is a parameter related to the target reception power set for active UL BWP b of carrier f of the serving cell c in parameter set configuration j (also referred to as, for example, a parameter related to transmission power offset, transmission power offset P0, target reception power parameter, etc.).

[0032] 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 of serving cell c and subcarrier spacing μ. α b,f,c (j) is a value provided by a higher layer parameter (also referred to as, for example, msg3 - Alpha, p0 - PUSCH - Alpha, fractional factor, etc.).

[0033] PL b,f,c (q d ) is the path loss (path loss compensation) calculated by the user terminal using the index q of the reference signal (path loss reference RS, DL RS for path loss measurement, PUSCH - PathlossReferenceRS) for the downlink BWP associated with active UL BWP b of carrier f of serving cell c. d

[0034] 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.

[0035] f b,f,c ​(i,l) is the value of the above power control adjustment state index l of the active UL BWP of the carrier f of serving cell c and transmission opportunity i, based on TPC commands (e.g., power control adjustment state, cumulative value of TPC commands, closed-loop value). l may also be called the closed-loop index.

[0036] If the UE does not provide a path loss reference RS (e.g., PUSCH-PathlossReferenceRS) or does not provide individual higher-layer parameters, the UE uses the RS resources from the SSB used to obtain the Master Information Block (MIB) to perform the PL b,f,c (q d You may also calculate ).

[0037] If the UE has set up a number of RS resource indexes up to the maximum number of path loss reference RSs (e.g., maxNrofPUSCH-PathlossReferenceRS) and a set of RS settings for each RS resource index by path loss reference RS, then the set of RS resource indexes may include one or both of the set of SS / PBCH block indexes and the set of CSI-RS resource indexes. The UE has set up an RS resource index q d They may be identified.

[0038] 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 You may also use [this].

[0039] If the UE is provided with a setting for power control of the PUSCH by a sounding reference signal (SRS) resource indicator (SRI) (e.g., SRI-PUSCH-PowerControl), and is provided with one or more values ​​for the ID of the path loss 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 ​​for the path loss reference RS from higher-layer signaling (e.g., sri-PUSCH-PowerControl-Id in SRI-PUSCH-PowerControl). From the ID of the path loss reference RS mapped to the SRI field value in DCI format 0_1 ​​that schedules the PUSCH, the UE can obtain the RS resource index q d You may decide that.

[0040] If a PUCCH transmission is scheduled in DCI format 0_0, and the UE does not provide PUCCH spatial relation information to the PUCCH resource having the lowest index for each carrier f and serving cell c's active UL BWP b, then the UE will use the same RS resource index q as the PUCCH transmission within that PUCCH resource. d You may also use [this].

[0041] If a PUSCH transmission is scheduled by DCI format 0_0 and the UE does not provide spatial settings for the PUSCH transmission, or if a PUSCH transmission is scheduled by DCI format 0_1 ​​which does not include an SRI field, or if the UE is not provided with settings for power control of the PUSCH by SRI, the UE will use RS resource index q, which has the ID of a zero path loss reference RS. d You may also use [this].

[0042] For PUSCH transmission configured by a configured grant configuration (e.g., ConfiguredGrantConfig), if the configured grant configuration includes a predetermined parameter (e.g., rrc-CofiguredUplinkGrant), the RS resource index q is determined by the path loss reference index (e.g., pathlossReferenceIndex) within the predetermined parameter. d may be provided to the UE.

[0043] For PUSCH transmission configured by a configured grant configuration, if the configured grant configuration does not include a predetermined parameter, the UE determines 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 the RS resource index q having an ID of zero for the path loss reference RS. d

[0044] <Transmission Power Control for PUCCH> [[ID=十六]]Also, in NR, the transmission power of the PUCCH is controlled based on the TPC command (also referred to as value, increment / decrement value, correction value, indication value, etc.) indicated by the value of a predetermined field (also referred to as the TPC command field, the first field, etc.) in the DCI.

[0045] For example, using the index l of the power control adjustment state, the transmission power (P PUCCH、b,f,c (i,q u ,q d ,l)) of the PUCCH in the transmission occasion (also referred to as the transmission period, etc.) i of the active UL BWP b of the carrier f of the serving cell c may be represented by the following formula (2).

[0046]

Number

[0047] The power control adjustment state may also be called the PUCCH power control adjustment state, the first or second state, etc.

[0048] Furthermore, the PUCCH transmission opportunity i is a predetermined period during which PUCCH is transmitted, and may consist of, for example, one or more symbols, one or more slots, etc.

[0049] In equation (2), P CMAX,f,c (i) is, for example, the transmit power of the user terminal set for the carrier f of serving cell c in transmission opportunity i (also called maximum transmit power, UE maximum output power, etc.). O_PUCCH,b,f,c (q u ) is, for example, a parameter relating to the target received power set for the active UL BWP b of the carrier f of serving cell c in a transmission opportunity i (also known as a parameter relating to the transmit power offset, transmit power offset P0, or target received power parameter, etc.).

[0050] M PUCCH RB,b,f,c (i) is the number of resource blocks (bandwidth) allocated to PUCCH for transmission opportunities i in the active UL BWP b of a serving cell c and carrier f with subcarrier spacing μ. b,f,c (q d ) is, for example, the index q of the reference signal for the downlink BWP (path loss reference RS, path loss measurement DL RS, PUCCH-PathlossReferenceRS) associated with the active UL BWP b of the carrier f of serving cell c. d This is the path loss calculated on the user terminal using [a specific method / tool].

[0051] Δ F_PUCCH (F) is a higher-level parameter given for each PUCCH format. Δ TF,b,f,c(i) is the transmission power adjustment component (offset) for the UL BWP b of the carrier f of serving cell c.

[0052] g b,f,c (i,l) is the value based on the TPC command of the above power control adjustment state index l of the active UL BWP of the carrier f of serving cell c and transmission opportunity i (e.g., power control adjustment state, cumulative value of TPC commands, closed-loop value, PUCCH power adjustment state).

[0053] If the UE is provided with information indicating the use of two PUCCH power control adjustment states (twoPUCCH-PC-AdjustmentStates) and PUCCH spatial relationship information (PUCCH-SpatialRelationInfo), then l = {0, 1}. If the UE is not provided with information indicating the use of two PUCCH power control adjustment states or PUCCH spatial relationship information, then l may be 0.

[0054] If the UE obtains a TPC command value from DCI format 1_0 or 1_1, and the UE is provided with PUCCH spatial relation information, the UE may obtain a mapping between the PUCCH spatial relation information ID (pucch-SpatialRelationInfoId) value and the closed-loop index (closedLoopIndex, power adjustment state index l) by index provided by the PUCCH P0 ID (p0-PUCCH-Id in p0-Set in PUCCH-Config-PowerControl). If the UE receives an activation command containing the value of the PUCCH spatial relation information ID, the UE may determine the value of the closed-loop index that provides the value of l through a link to the corresponding PUCCH P0 ID.

[0055] If UE is active UL BWP b of carrier f of serving cell c, then P for the corresponding PUCCH power adjustment state lO_PUCCH,b,f,c (q u ) If the value setting is provided by the upper layer, g b,f,c (i, l) = 0, k = 0, 1, …, i. If the UE provides PUCCH spatial relation information, the UE u Based on the PUCCH P0 ID corresponding to q, the closed-loop index value corresponding to l, and the PUCCH spatial relation information associated therewith, the UE u may determine the value of l from the value of q.

[0056] q u may be the PUCCH P0 ID (p0-PUCCH-Id) indicating the PUCCH P0 (P0-PUCCH) within the PUCCH P0 set (p0-Set).

[0057] <Transmission Power Control for SRS> For example, using the index l of the power control adjustment state, the transmission power (P SRS、b,f,c (i, q s , l)) of the sounding reference signal (SRS) at the transmission occasion (also referred to as the transmission period, etc.) i of the serving cell c's carrier f's active UL BWP b may be represented by the following formula (3).

[0058] The power control adjustment state may also be referred to as the SRS power control adjustment state, a value based on the TPC command, the cumulative value of the TPC command, a value by closed-loop, the first or second state, etc. l may also be referred to as the closed-loop index. <​​​​​​​​

[0061] In equation (3), P CMAX,f,c (i) is, for example, the maximum UE output power for the carrier f of the serving cell c in an SRS transmission opportunity i. O_SRS,b,f,c (q s ) is the active UL BWP b of the carrier f of serving cell c, and the SRS resource set q s These are parameters related to the target received power (provided by SRS-ResourceSet and SRS-ResourceSetId) and provided by p0 (for example, parameters related to the transmit power offset, transmit power offset P0, or target received power parameters, etc.).

[0062] M SRS,b,f,c (i) is the SRS bandwidth expressed as the number of resource blocks for SRS transmission opportunities i on the active UL BWP b of a serving cell c and carrier f with subcarrier spacing μ.

[0063] α SRS,b,f,c (q s ) is the active UL BWP b of the serving cell c and carrier f with subcarrier spacing μ, and the SRS resource set q s And is provided by α (for example, alpha) for .

[0064] PL b,f,c (q d ) is the active DL BWP of serving cell c and SRS resource set q s And, in contrast, RS resource index q d This is the DL path loss estimate [dB] calculated by UE using the RS resource index q. d is SRS resource set q sIt is an associated path loss reference RS (provided by a path loss measurement DL RS, e.g., pathlossReferenceRS), and is either an SS / PBCH block index (e.g., ssb-Index) or a CSI-RS resource index (e.g., csi-RS-Index).

[0065] h b,f,c (i,l) is the SRS power control adjustment state for the active UL BWP of the carrier f of serving cell c, and the SRS transmission opportunity i. If the setting of the SRS power control adjustment states (e.g., srs-PowerControlAdjustmentStates) indicates the same power control adjustment state for SRS transmission and PUSCH transmission, then h b,f,c (i,l) represents the current PUSCH power control adjustment state f b,f,c This is the same as (i,l).

[0066] PUSCH, PUCCH, SRS transmission opportunity i is slot index n within the frame of system frame number SFN. s,f μ The slot may be defined by the first symbol S and the number of consecutive symbols L. In the case of a PUSCH transmission of repetition type B, the opportunity to transmit a PUSCH may be a nominal repetition.

[0067] (power requirements) In NR, the issue of Maximum Permitted Exposure (MPE) (or electromagnetic power density exposure) is being considered. UE is required to meet Federal Communications Commission (FCC) regulations regarding maximum radiation exposure to the human body for health and safety reasons.

[0068] For example, Rel.15 NR specifies limitations using Power-management Maximum Power Reduction (P-MPR) to limit exposure. For example, in the case of non-carrier aggregation (CA), the UE maximum power P CMAX,f,c is the corresponding P UMAX,f,c The (measured maximum output power, measured set maximum UE output power) is set to satisfy equation (4) below.

[0069]

number

[0070] EIRP max P-MPR is assumed to be the maximum value of the corresponding measured peak effective isotropic radiated power (EIRP). f,c Let P-MPR be a value that indicates the reduction in the maximum output power allowed to the carrier f of serving cell c. f,c The carrier f of serving cell c is set to the maximum UE output power P. CMAX,f,c It is introduced into the equation. The corresponding total radiated power P TMAX,f,c P TMAX,f,c ≦TRP max This is the result.

[0071] In the case of carrier aggregation (CA), the maximum output power P of the UE CMAX,f,c is the corresponding P UMAX,f,c The following equation (5) is set to satisfy the following conditions.

[0072]

number

[0073] Measured P for carrier aggregation UMAX P UMAX =Σ c,f(c) P UMAX,f,cis defined as. Here, P UMAX,f,c is the linear value of the measured power P UMAX,f,c for the carrier f = f(c) of the serving cell c. The measured total radiated power P TMAX of carrier aggregation is P TMAX = 10log 10 Σ c,f(c) P TMAX,f,c and is defined as. Here, P TMAX is the linear value of the measured value of the total radiated power P TMAX,f,c for the carrier f = f(c) of the serving cell c. The total radiated power P TMAX is such that P TMAX ≦TRP max and the boundary is defined as.

[0074] That is, the UE can set its maximum output power as P UMAX such that the measured peak EIRP (P TMAX ) is within the lower and upper limits, and the measured total radiated power P TMAX satisfies P ma ≦TRP CMAX .

[0075] (Analysis) When multi-panel simultaneous UL transmission is supported, the UE transmits UL simultaneously from two panels, but the transmission power control for each panel is not clear. For example, it is not clear how the transmission power of PUSCH / PUCCH / SRS is determined and how the maximum output power of each panel is set. As a result, the transmission control for each panel may not be properly performed, and there is a risk of a decrease in communication throughput.

[0076] Therefore, the inventors conceived a wireless communication method that can properly perform transmission power control for each panel.

[0077] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings. The wireless communication methods according to the respective embodiments may be applied individually or in combination.

[0078] In this disclosure, "A / B" and "at least one of A and B" may be interpreted as mutually exclusive. In this disclosure, "A / B / C" may mean "at least one of A, B, and C".

[0079] In this disclosure, terms such as activate, deactivate, indicate, select, configure, update, and determine may be interpreted interchangeably. In this disclosure, terms such as support, control, controllable, operate, and operable may be interpreted interchangeably.

[0080] In this disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher-layer parameters, fields, Information Elements (IE), settings, etc., may be interpreted interchangeably. In this disclosure, Medium Access Control elements (MAC Control Element (CE)), update commands, activation / deactivation commands, etc., may be interpreted interchangeably.

[0081] In this disclosure, the upper-layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof.

[0082] In this disclosure, MAC signaling may include, for example, MAC Control Elements (MAC CEs) and MAC Protocol Data Units (PDUs). Broadcast information may include, for example, Master Information Blocks (MIBs), System Information Blocks (SIBs), Remaining Minimum System Information (RMSIs), and Other System Information (OSIs).

[0083] In this disclosure, physical layer signaling may include, for example, Downlink Control Information (DCI) and Uplink Control Information (UCI).

[0084] In this disclosure, terms such as index, identifier (ID), indicator, and resource ID may be interpreted interchangeably. In this disclosure, terms such as sequence, list, set, group, cluster, and subset may be interpreted interchangeably.

[0085] In this disclosure, the terms used include: panel, UE panel, panel group, beam, beam group, precoder, Uplink (UL) transmit entity, Transmission / Reception Point (TRP), base station, Spatial Relation Information (SRI), spatial relationship, SRS Resource Indicator (SRI), Control Resource Set (CORESET), Physical Downlink Shared Channel (PDSCH), Codeword (CW), Transport Block (TB), Reference Signal (RS), antenna port (e.g., Demodulation Reference Signal (DMRS) port), antenna port group (e.g., DMRS port group), group (e.g., spatial relationship group, Code Division Multiplexing (CDM) group, reference signal group, CORESET group, Physical Uplink Control Channel (PUCCH) groups, PUCCH resource groups, resources (e.g., reference signal resources, SRS resources), resource sets (e.g., reference signal resource sets), CORESET pools, downlink Transmission Configuration Indication state (TCI state) (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, quasi-co-location (QCL), QCL assumptions, etc., may be interpreted interchangeably.

[0086] Furthermore, the spatial relationship information Identifier (ID) (TCI state ID) and spatial relationship information (TCI state) may be interpreted as mutually exclusive. "Spatial relationship information" may be interpreted as mutually exclusive as "a set of spatial relationship information," "one or more spatial relationship information," etc. TCI state and TCI may be interpreted as mutually exclusive.

[0087] In this disclosure, multi-panel simultaneous transmission and multi-panel simultaneous UL transmission may be interpreted interchangeably. In this disclosure, supporting and being configured / instructed may be interpreted interchangeably. In this disclosure, loop, power control loop, power control loop index, closed loop, open loop, and power control adjustment state may be interpreted interchangeably. In this disclosure, transmit power and output power may be interpreted interchangeably.

[0088] (Wireless communication method) <First Embodiment> [Transmit power control for PUSCH / PUCCH / SRS] If simultaneous UL transmission from multiple panels is supported, the UE receives the transmit power settings for each panel and, based on these settings, controls the transmit power separately for each panel, and simultaneously transmits UL transmissions (PUSCH / PUCCH / SRS) using multiple panels (e.g., two panels) (at transmission opportunity i). These settings may be configured using higher-layer signaling (e.g., RRC) or physical layer signaling (e.g., DCI TPC commands), similar to existing transmit power control methods.

[0089] In addition, the transmit power control in this embodiment may be the same as the transmit power control for PUSCH / PUCCH / SRS described above (transmit power control), except for parts that are not specifically specified.

[0090] When the UE transmits PUSCH from panel p on the active UL BWP b of carrier f of serving cell c using a parameter set having index j and an index l of the power control adjustment state, the transmission power (P PUSCH、b,f,c,p (i,j,q d ,l)) of PUSCH at PUSCH transmission occasion (also referred to as transmission period, etc.) i may be determined based on the following formula (6). Note that p is the index of the panel and may be set by upper layer signaling / physical layer signaling.

[0091]

Equation

[0092] Figure 3A is a diagram showing an example of PUSCH simultaneous transmission using two panels. The UE transmits PUSCH from panel #1 using the transmission power (P PUSCH、b,f,c,p=1 (i,j,q d ,l), and transmits PUSCH from panel #2 using the transmission power (P PUSCH、b,f,c,p=2 (i,j,q d ,l).

[0093] When the UE uses the index l of the power control adjustment state, the transmission power (P PUCCH、b,f,c,p (i,q u ,q d ,l)) of PUCCH at PUCCH transmission occasion i for the active UL BWP b of carrier f of serving cell c may be determined based on the following formula (7).

[0094]

Equation

[0095] Figure 3B is a diagram showing an example of PUCCH simultaneous transmission using two panels. The UE transmits from panel #1 with the transmission power (P PUCCH、b,f,c,p=1 (i,q u,q d ,l)) transmits PUCCH, and from panel #2, transmit power (P PUCCH、b,f,c,p=2 (i,q u ,q d Send PUCCH using ,l)).

[0096] The UE uses the power control adjustment index l to determine the SRS transmit power (P) in the SRS transmission opportunity i for the active UL BWP b of the carrier f of serving cell c. SRS、b,f,c,p (i,q s ,l)) may be determined based on the following formula (8).

[0097]

number

[0098] Figure 3C shows an example of simultaneous SRS transmission using two panels. The UE transmits from panel #1 with a transmission power of (P SRS、b,f,c,p=1 (i,q s SRS is transmitted using ,l)), and from panel #2, the transmit power (P SRS、b,f,c,p=2 (i,q s Send SRS using ,l)).

[0099] The transmit power control of PUSCH / PUCCH / SRS differs from the existing control shown in equations (1) to (3) in that each element is set for each panel (p), as shown in equations (6) to (8). Similar points are omitted from the explanation.

[0100] Equations (6) to (8) are merely illustrative and not limiting. The user terminal only needs to control the transmit power of PUSCH / PUCCH / SRS based on at least one parameter exemplified in equations (6) to (8), and additional parameters may be included, or some parameters may be omitted. Also, in equations (6) to (8) above, the transmit power of PUSCH / PUCCH / SRS is controlled for each active UL BWP of a carrier in a serving cell, but this is not limited to this. At least some of the serving cell, carrier, BWP, and power control adjustment state may be omitted.

[0101] This allows the UE to appropriately control the transmit power for PUSCH / PUCCH / SRS on a panel-by-panel basis.

[0102] [Maximum output power] Equations (6) to (8) include the maximum output power (maximum transmit power) P of the carrier f of serving cell c at panel p. CMAXpanel,f,c,p This section explains an example of the settings.

[0103] 《Option 0》 The UE may receive settings for the maximum output power per serving cell and per carrier (e.g., settings similar to Rel.17) and determine the maximum output power per panel based on these settings. For example, if the maximum output power of carrier f of serving cell c is P CMAX,f,c The maximum output power P of each panel p is set as follows: CMAX,f,c,p P CMAX,f,c The decision may be made based on P CMAX,f,c and P CMAX,f,c,p The decision may be made based on the relationship with P. CMAX,f,c The relationship may be set in the UE by upper-layer signaling / physical layer signaling. The following are examples of the maximum output power per panel in this case.

[0104] 《Option 0-1》 The UE calculates the maximum output power P of the panel p based on the following equation (9). CMAX,f,c,pYou may decide that N is the number of panels instructed to transmit simultaneously. In other words, the maximum output power of each panel may be the same.

[0105]

number

[0106] For example, if simultaneous multi-panel transmission is instructed, N=2. If single-panel transmission is instructed, N=1. Alternatively, N may be a value set by upper-layer signaling / physical-layer signaling from the network (base station) and at least one of the UE capabilities. Different values ​​may be applied to N for single-panel transmission and multi-panel transmission. Alternatively, N is the maximum number of panels that the UE supports in UL transmission (e.g., N=2), and the application of single-panel transmission or simultaneous multi-panel transmission does not need to be instructed by the network.

[0107] 《Option 0-2》 The UE calculates the maximum output power P of the panel p based on the following equation (10): CMAX,f,c,p It may be determined that the sum of the maximum output powers of each panel p is the maximum output power of the UE. Np is a value for panel p and may differ for each panel. In other words, the maximum output power of each panel may differ.

[0108]

number

[0109] Np may be a value set by upper-layer signaling / physical-layer signaling from the network (base station), and at least one of the UE capabilities. Different values ​​may be applied to Np for single-panel transmission and multi-panel transmission.

[0110] Options 0-3 The UE calculates the maximum output power P of the panel p based on the following equation (11). CMAX,f,c,p It may be determined that the sum of the maximum output powers of each panel p is the maximum output power of the UE. In this case, the maximum output powers of each panel may be the same, different, or some panels may have the same maximum output power.

[0111]

number

[0112] Maximum output power P of panel p CMAXpanel,f,c,p It is not defined in the specification, P CMAX,f,c The transmit power may be defined using , and Np (or N). For example, if option 0-2 is applied, the UE is defined as the transmit power (P) of panel p's PUSCH. PUSCH、b,f,c,p (i,j,q d ,l)) may be determined based on equation (12).

[0113]

number

[0114] Similarly, when options 0-2 are applied, the transmit power of panel p PUCCH (P PUCCH、b,f,c,p (i,q u ,q d ,l)) may be determined based on equation (13).

[0115]

number

[0116] Similarly, if option 0-2 is applied, the transmit power of the SRS (P SRS、b,f,c,p (i,q s ,l)) may be determined based on equation (14).

[0117]

number

[0118] Note that when applying options 0-1, Np in equations (12) to (14) is replaced with N.

[0119] P CMAX,f,c P when determining Powerclass ΔP IBE , MPR f,c A-MPR f,c ΔMB P,n P-MPR f,c EIRP max TRP max The requirements may be newly defined when applying simultaneous UL transmission in a multi-panel configuration. That is, different requirements may be defined for single-panel transmission and simultaneous multi-panel transmission.

[0120] Options 0-4 The UE calculates the maximum output power P of the panel p based on the following equation (15): CMAX,f,c,p You may decide on the maximum transmit power for each panel, or the maximum transmit power for multiple panels may be the same.

[0121]

number

[0122] This clarifies the maximum output power of panel p, the maximum output power of all panels, and their relationships, allowing the UE to control simultaneous UL transmission of multiple panels using appropriate transmit power.

[0123] [Option 1] The UE uses requirements (boundaries) defined based on the peak effective isotropic radiated power (EIRP) measurement for each UE and the total radiated power measurement for each UE to determine the maximum output power P of each panel p. CMAXpanel,f,c,p You may decide that.

[0124] Power requirements for non-carrier aggregation (CA) In the case of non-carrier aggregation (CA), the maximum output power P of each panel p of the carrier f of the serving cell c. CMAXpanel,f,c,p However, the corresponding peak EIRP measurement P for carrier f and serving cell c UMAX,f,c The total radiated power measurement P of carrier f and serving cell c satisfies equation (4). TMAX,f,c However, P TMAX,f,c ≦TRP max It will be set up in such a way.

[0125] P UMAX,f,c =Σ p P UMAX,f,c,p This may also be the case. In other words, the peak EIRP measurement of carrier f in serving cell c may be calculated as the sum of the peak EIRP measurements of multiple panels. UMAX,f,c,p This is the measured peak EIRP of panel p.

[0126] P TMAX,f,c =Σ p P TMAX,f,c,p This may also be the case. In other words, the total radiated power measurement of carrier f of serving cell c may be calculated as the sum of the total radiated power measurements of multiple panels. TMAX,f,c,p This represents the peak total radiated power measurement of panel p.

[0127] P Powerclass ΔP IBE , MPR f,c A-MPR f,c ΔMB P,n P-MPR f,c EIRP max TRP max The requirements may be the same as those in Rel.17 (for single-panel transmission). Alternatively, these requirements may be newly defined when applying simultaneous UL transmission in multi-panel configurations. In other words, different requirements may be defined for single-panel transmission and simultaneous multi-panel transmission.

[0128] This configuration clarifies the maximum output power of panel p, the maximum output power of all panels, and their relationships, allowing the UE to control simultaneous UL transmission of multiple panels using appropriate transmit power.

[0129] Power requirements for carrier aggregation (CA) In carrier aggregation (CA), the maximum output power P of each panel p of the serving cell c is the carrier f. CMAXpanel,f,c,p (i) The corresponding peak EIRP measurement P UMAX The equation (5) is satisfied, and the total radiated power measurement P TMAX However, P TMAX ≦TRP max It will be set up in such a way.

[0130] P UMAX =Σ c,f(c),p P UMAX,f,c,p This may also be the case. In other words, the peak EIRP measurement may be calculated as the sum of the peak EIRP measurements of multiple panels. UMAX,f,c,p This is the measured peak EIRP of panel p.

[0131] P TMAX =Σ c,f(c),p P TMAX,f,c,p This may also be the case. In other words, the total radiated power measurement may be calculated as the sum of the total radiated power measurements of multiple panels. TMAX,f,c,p This represents the total radiated power measurement of panel p.

[0132] P Powerclass ΔP IBE , MPR f,c A-MPR f,c ΔMB P,n P-MPR f,c EIRP max TRP max The requirements may be the same as those in Rel.17 (for single-panel transmission). Alternatively, these requirements may be newly defined when applying simultaneous UL transmission in multi-panel configurations. In other words, different requirements may be defined for single-panel transmission and simultaneous multi-panel transmission.

[0133] Maximum output power The maximum output power P set for each panel's UE CMAXpanel,f,c,p And the maximum output power P set for the UE of a carrier in a certain serving cell. CMAX,f,c The following example may apply to the relationship between these two things.

[0134] 《《Option 1-0》》 In simultaneous UL transmission across multiple panels, there may be no additional restrictions defined in the specification. As long as the above-mentioned requirements for peak EIRP and total radiated power measurements are met, the UE may decide how to set the maximum output power for each panel.

[0135] 《《Option 1-1》》 Maximum output power P set for UE CMAXpanel,f,c,p x may be equal in each panel. That is, it may be defined as in equation (16) below. Note that x = {0, ..., N-1}.

[0136]

number

[0137] N is the number of panels instructed to transmit simultaneously. For example, N=2 if multiple panels are instructed to transmit simultaneously, and N=1 if a single panel is instructed to transmit. N may also be a value set by the network (base station) via upper layer signaling / physical layer signaling, and a value corresponding to at least one of the UE capabilities. Alternatively, N may be a different value for single-panel transmission and multi-panel transmission.

[0138] 《《Option 1-2》》 Maximum output power P of different panels set in UE CMAXpanel,f,c,p The relationships between them may be predefined and may be different for each other. Maximum output power P CMAXpanel,f,c,pIf the UE settings differ from panel to panel, the relationship between the UE-configured maximum output power of each panel and the maximum output power of a carrier in a given serving cell may be predefined or may differ from panel to panel. These relationships may be set in the UE by upper-layer signaling / physical-layer signaling. These relationships may be defined, for example, as shown in equation (17).

[0139]

number

[0140] X p=0,p=1 This defines the relationship between the maximum output power of panel #0 (p=0) and the maximum power of panel #1 (p=1). Np defines the relationship between the maximum output power of panel p and the maximum output power of the carriers of the corresponding serving cell. p=0,p=1 Np may be a value set by upper-layer signaling / physical-layer signaling from the network (base station), and a value corresponding to at least one of the UE capabilities. p=0,p=1 Np may have different values ​​for single-panel transmission and multi-panel transmission.

[0141] Option 1 clarifies the per-terminal power requirements (limits) and maximum output power when performing multi-panel simultaneous UL transmission, allowing the UE to appropriately control the transmit power.

[0142] [Option 2] The UE uses requirements (boundaries) defined based on the peak effective isotropically radiated power (EIRP) measurement and the total radiated power measurement for each panel to determine the maximum output power P of each panel p. CMAXpanel,f,c,p The maximum output power P of each panel p set in the UE may be determined. CMAXpanel,f,c,p P is the measured peak EIRP for each corresponding panel. UMAXpanel,f,c,p However, the requirements (boundaries) of equation (18) below are met. In this case, the total radiated power P for each panel TMAXpanel,f,c,p P TMAXpanel,f,c,p ≦TRP MAX,p It satisfies the condition.

[0143]

Number

[0144] P Powerclass 、ΔP IBE 、MPR f,c 、A-MPR f,c 、ΔMB P,n 、P-MPR f,c 、EIRP max 、TRP max The requirements for parameters such as these may be defined for each panel. Or, different requirements may be defined for single-panel transmission and multi-panel transmission. Or, the requirements for each UE in Rel. 17 may be reused, and the requirements for each panel in multi-panel simultaneous transmission may be the same as the requirements for UEs in Rel. 17. Or, the requirements may be different for each panel and may depend on UE capabilities. Some of these parameters may be predefined as zero.

[0145] The maximum output power P of each panel p CMAXpanel,f,c,p may apply different setting / determination methods for different UE types / UE power classes (see, for example, FIG. 4). Note that a new (different from single-panel UL transmission) UE type / UE power class may be defined for UEs performing multi-panel simultaneous UL transmission.

[0146] According to Option 2, the per-panel power requirements (limits) in the case of multi-panel simultaneous UL transmission are clarified, and the UE can appropriately control the transmission power.

[0147] <Second Embodiment> The maximum output power P for each panel (panel p) set for the UE <00002This is calculated in the same manner as in the first embodiment. If simultaneous uplink (UL) transmission from multiple panels is supported, the UE transmits (reports) information (value) indicating this maximum output power in the Power Headroom Report Medium Access Control Control Element (PHR MAC CE) and controls UL transmission based on this maximum output power. The UE may transmit (report) at least one of the following options in the PHR MAC CE, or in a MAC CE other than the PHR MAC CE.

[0148] [Option 1] The UE is the set maximum output power P of the serving cell. CMAX,f,c You may report the following: The maximum output power of a serving cell set in the UE is the maximum output power P of a multi-panel set in the UE. CMAXpanel,f,c,p The sum may also be used (Equation (19)).

[0149]

number

[0150] In the case of single-panel transmission, the maximum output power of the serving cell set in the UE may be the same as the maximum output power of the panel used for transmission, as set in the UE.

[0151] [Option 2] The UE is set to the maximum output power P CMAXpanel,f,c,p or maximum output power P CMAXpanel,f,c,p You may report the values ​​related to this.

[0152] Figure 5 shows the maximum output power P for each panel. CMAXpanel,f,c,pThis figure shows an example of a PHR MAC CE including the following. In Figure 5, PH indicates the Power Headroom level. MPE indicates the applied power backoff to meet the MPE requirement when the P field is set to 1. The example in Figure 5 is single-entry, but in the case of multi-entry, multiple P fields per panel would be shown. CMAXpanel,f,c,p It may include P in Figure 5. CMAXpanel,f,c,p This may be replaced with any of the values ​​in options 2-1 to 2-5 described below.

[0153] 《Option 2-1》 UE is the maximum output power P per panel. CMAXpanel,f,c,p You may report the value of [this value].

[0154] 《Option 2-2》 UE is the maximum output power P per panel. CMAXpanel,f,c,p Assuming they are the same, each panel has one common value P. CMAXpanel,f,c,p You may report it.

[0155] 《Option 2-3》 UE is the maximum output power P per panel. CMAXpanel,f,c,p The maximum value among them (for example, max p P CMAXpanel,f,c,p You may report (which is referred to as...).

[0156] 《Options 2-4》 UE is the maximum output power P per panel. CMAXpanel,f,c,p The minimum value among them (for example, min p P CMAXpanel,f,c,p You may report (which is referred to as...).

[0157] 《Options 2-5》 If single-panel transmission is instructed, the UE may report the maximum output power of the instruction panel for transmission.

[0158] The UE may use different options from the above options depending on whether single-panel transmission is instructed or multi-panel simultaneous transmission is instructed.

[0159] The UE may report the values shown in each of the above options using a new MAC CE instead of the existing PHR MAC CE.

[0160] According to this embodiment, by transmitting (reporting) the maximum output power for each panel, it is possible to receive settings regarding appropriate transmission power for each panel.

[0161] <Analysis> In Rel.17, it is being considered to support two power control loops for each serving cell.

[0162] In the case of PUSCH, the index of the power control loop (closed-loop, power control adjustment state) is associated with the TCI state (if provided), or with the SRI.

[0163] In the case of PUCCH, the index of the power control loop is associated with the TCI state (if provided), or with the PUCCH spatial relationship.

[0164] In the case of SRS, the index of the power control loop may be associated with the TCI state (if provided). Or, regarding whether the closed-loop power control of SRS (closed-loop index) is the same as the power control loop index 0 of PUSCH or the power control loop index 1 of PUSCH, or is a different power control loop from PUSCH, an indication may be provided for each SRS resource set.

[0165] The closed-loop power control of SRS indicates h in Equation (3). b,f,c (i, l). If it is shown that the closed-loop power control of SRS is the same as the power control loop index l of PUSCH, h b,f,c (i, l) = f b,f,c (i, l) may be. Note that f b,f,c (i, l) is included in Equation (1) and relates to the closed-loop power control of PUSCH.

[0166] Here, since the consideration of how the number of power control loops is set when the maximum output power of the panels set in the UE differs in single-panel transmission or multi-panel transmission is insufficient, we will consider this in the following third embodiment.

[0167] <Third Embodiment> This embodiment describes the control when supporting simultaneous multi-panel UL transmission and dynamic switching between single-panel transmission and simultaneous multi-panel transmission. The power control loop and power control loop index (l) may be interpreted interchangeably. The UE may report the supported power control loops as UE capability or they may be configured by upper-layer signaling / physical layer signaling.

[0168] [Number of power control loops] The UE may support up to N power control loops for a serving cell. N may be different from (greater than) N in Rel.17 (N=2). The UE may, for example, support multiple power control loops, support at least one power control loop for single-panel transmissions, and support at least one power control loop for multi-panel simultaneous transmissions.

[0169] For example, if N=4, the UE may support two power control loops for single-panel transmission and two power control loops for multi-panel simultaneous transmission.

[0170] For example, if N=3, the UE may support two (or one) power control loops for single-panel transmission and one (or two) power control loops for multi-panel simultaneous transmission.

[0171] For example, if N=2, the UE may support one power control loop for single-panel transmission and one power control loop for multi-panel simultaneous transmission.

[0172] [PUSCH's power control loop] In the case of PUSCH, the two indices of the power control loop may be associated with the TCI state (if provided), or the two indices of the power control loop may be associated with the SRI value.

[0173] [PUCCH power control loop] In the case of PUCCH, the two indices of the power control loop may be associated with the TCI state (if provided), or the two indices of the power control loop may be associated with the PUCCH spatial relation.

[0174] [SRS power control loop] In the case of SRS, two indices of the power control loop may be associated with the TCI state (if provided). Alternatively, two instructions may be provided per SRS resource set indicating whether the closed-loop power control (closed-loop index) of the SRS is the same as PUSCH's power control loop index 0 or PUSCH's index 1, or whether it is a different power control loop from PUSCH. One instruction may be sent for a single-panel transmission, and the other instruction may be used for a multi-panel simultaneous transmission. The other instruction may be sent for one of the panels in the multi-panel (e.g., panel #1 or #2).

[0175] [others] In PUSCH / PUCCH / SRS, one index in the power control loop may be used for single-panel transmission, and another index may be used for multi-panel simultaneous transmission. This other index may be used for one of the panels in the multi-panel configuration (e.g., panel #1 or #2).

[0176] The power control loop for PUSCH / PUCCH / SRS may be associated with a panel ID. The power control loop may be specified (counted) by a TPC command associated with the panel ID. The TPC field may be one field (the same as in Rel.15), or multiple fields may be applied to indicate multiple panel IDs.

[0177] According to this embodiment, the number and association of the power control loops are clarified, and the UE can appropriately perform power control using the power control loops.

[0178] <Delta for PUSCH TF,b,f,c (i)> Delta (i), which is the transmission power adjustment component for PUSCH for UL BWP b of carrier f of serving cell c TF,b,f,c An example of the calculation method of (i) will be described. Delta (i) for PUSCH TF,b,f,c (i) is expressed as in Equation (20). In Equation (20), K S = 1.25, and when K S = 0, Delta (i) = 0. K TF,b,f,c is provided for each UL BWP b, each carrier f, and serving cell c as an upper layer parameter (deltaMCS). When PUSCH transmission is more than one layer, Delta (i) S may be 0. TF,b,f,c

[0179]

Number

[0180] Bits per resource element (BPRE) in Equation (20) is expressed as in Equation (21) when used for PUSCH having UL-SCH data.

[0181]

Number

[0182] ]> When the BPRE in Equation (20) is used for the PUSCH for CSI transmission without UL-SCH data, it is expressed as in Equation (22).

[0183] [Number]

[0184] C in Equation (21) is the number of transmission code blocks, and K r is the size of code block r, and N<?? RE is the number of resource elements expressed as in Equation (23).

[0185] [Number]

[0186] In Equation (20), when the PUSCH contains UL-SCH data, β offset PUSCH = 1, and when the PUSCH does not contain UL-SCH data but contains CSI, β offset PUSCH = β offset CSI,1 .

[0187] Q in Equation (22) m is the modulation order, and R is the target coding rate.

[0188] [Δ for PUCCH] TF,b,f,c (i)] [Δ(i) for PUCCH for UL BWP b of carrier f of serving cell c] is the transmission power adjustment component for PUCCH for UL BWP b of carrier f of serving cell c. TF,b,f,c An example of the calculation method of [Δ(i) for PUCCH] will be described. [Δ for PUCCH] TF,b,f,c (i) is expressed as in Equation (24) when PUCCH transmission uses PUCCH format 0 or 1.

[0189] [Number] [[ID= N symb PUCCH (i) is the number of symbols in PUCCH format 0 or 1 in the PUCCH transmission. In the case of PUCCH format 0, N ref PUCCH =2, and in the case of PUCCH format 1, N ref PUCCH =N symb slot And, in the case of PUCCH format 0, Δ UCI (i)=0, and in the case of PUCCH format 1, Δ UCI (i) = 10log 10 (O UCI (i)) O UCI (i) is the number of UCI bits for PUCCH transmission opportunity i.

[0191] Δ for PUCCH TF,b,f,c (i) is expressed as in equation (25) when the PUCCH transmission uses PUCCH format 2, 3, or 4 and the number of UCI bits is 11 or less.

[0192]

number

[0193] In equation (25), K1 = 6. HARQ-ACK (i) is the number of HARQ-ACK information bits determined by the UE. SR (i) is the number of SR information bits determined by the UE. CSI (i) is the number of CSI information bits determined by the UE. RE (i) is the number of resource elements.

[0194] Δ for PUCCH TF,b,f,c (i) is expressed as equation (26) when the PUCCH transmission uses PUCCH format 2, 3, or 4 and the number of UCI bits is greater than 11. In equation (26), K2 = 2.4.

[0195]

number

[0196] Also, BPRE(i) is expressed as in Equation (27). O ACK (i) indicates the number of HARQ-ACK information bits determined by the UE. O SR (i) is the number of SR information bits determined by the UE. O CSI (i) is the number of CSI information bits determined by the UE. O CRC (i) is the number of CRC information bits determined by the UE. N RE (i) is the number of resource elements.

[0197] [Number]

[0198] <Δ for PUCCH F_PUCCH,p (F)> Δ F_PUCCH,p (F) is determined based on the RRC parameter. Δ F_PUCCH,p (F), if provided, is based on parameters such as deltaF-PUCCH-f0 for PUCCH format 0, or deltaF-PUCCH-f1 for PUCCH format 1, deltaF-PUCCH-f2 for PUCCH format 2, deltaF-PUCCH-f3 for PUCCH format 3, deltaF-PUCCH-f4 for PUCCH format 4, etc. If these parameters are not provided, Δ F_PUCCH,p (F) = 0.

[0199] <The Fourth Embodiment> Parameters used for PUSCH power control shown in Equation (1) (for example, P O_PUSCH,b,f,c (j), α b,f,c (j), PUSCH power control adjustment state index l, index q of the path loss reference RS dAt least one of these may be associated with the Transmission Configuration Indication (TCI) state of the PUSCH or the SRI of the PUSCH (an indicator for the SRS resource corresponding to the PUSCH, or spatial relation information corresponding to the PUSCH).

[0200] The parameters used for PUCCH power control shown in equation (2) (for example, P O_PUCCH,b,f,c (q u ), PUCCH power control adjustment state index l, path loss reference RS index q d At least one of these may be associated with PUCCH's TCI state or PUCCH's spatial relation information.

[0201] The parameters used for SRS power control shown in equation (3) (for example, P O_SRS,b,f,c (q s ), α SRS,b,f,c (q s ), SRS power control adjustment state index l, path loss reference RS index q d At least one of ) is associated with the TCI state of the SRS and the SRS resource set q S These may be provided for the following purposes. At least one of these parameters may be the same as in Rel.17.

[0202] M of panel p in equations (6) to (8) PUSCH RB,b,f,c,p (i), M PUCCH RB,b,f,c,p (i), M SRS,b,f,c,p (i) is the bandwidth of the PUSCH / PUCCH / SRS associated with panel p, and is expressed as the number of RBs.

[0203] Δ of panel p in equation (6) TF,b,f,c,p (i) may be calculated based on the number of layers, the number of transmit code blocks, the code block size, and the number of resource elements of the PUSCH transmit associated with panel p.

[0204] In equation (7), the Δ of panel pF_PUCCH,p (F), Δ TF,b,f,c,p (i) (for PUCCH) may be calculated based on the PUCCH format, the number of UCI bits, and the number of resource elements of the PUCCH transmission associated with panel p.

[0205] According to this embodiment, the relationship between the power control parameters of PUSCH / PUCCH / SRS and other parameters becomes clear, allowing the UE to perform power control appropriately.

[0206] <Linear value of transmitted power> In codebooks other than PUSCH scheduled by DCI0_0, the linear value P - PUSCH , b,f,c (i,j,q d ,l) is scaled by a coefficient s, where s varies depending on the full-power transmission mode, the number of antenna ports, and the number of SRS ports. Here, P - The variable P is shown with an overline and may also be called a P-bar. The UE equally divides the power among the antenna ports from which the UE transmits PUSCH at non-zero power.

[0207] For active UL BWP b, carrier f, and PUSCH transmission in serving cell c, the UE first transmits power P. PUSCH , b,f,c (i,j,q d Linear value P of ,l) - PUSCH , b,f,c (i,j,q d Calculate ,l). This section describes the case where txConfig in PUSCH-Config is set to "codebook" for PUSCH transmissions scheduled in DCI formats other than DCI format 0_0, or transmissions configured with ConfiguredGrantConfig or semiPersistentOnPUSCH.

[0208] If ul-FullPowerTransmission is provided in PUSCH-Config, the UE will P - PUSCH , b,f,c (i,j,q d Scale l) by s.

[0209] If ul-FullPowerTransmission in PUSCH-Config is set to fullpowerMode1 and each SRS resource in SRS-ResourceSet with its usage set to "codebook" has multiple SRS ports, then s is the ratio of the non-zero PUSCH transmit power to the number of antenna ports relative to the maximum number of SRS ports that the UE supports with a single SRS resource.

[0210] If PUSCH-Config's ul-FullPowerTransmission is set to fullpowerMode2, then the following (1) and (2) apply.

[0211] (1) For full-power TPMI reported by the UE, s=1. s is the ratio of the number of antenna ports with non-zero push transmit power to the number of SRS ports for the remaining TPMI. The number of SRS ports is associated with the SRS resource indicated by the SRI field in DCI format that schedules push transmits, if multiple SRS resources are configured in the SRS-ResourceSet and the use is "codebook," or indicated by a Type 1 configuration grant, or if only one SRS resource is configured in the SRS-ResourceSet and the use is set to "codebook," then the number of SRS ports is associated with the SRS resource.

[0212] (2) If an SRS-ResourceSet with its use set to "codebook" provides multiple SRS resources, or is indicated by a Type 1 setting grant, or if an SRS-ResourceSet with its use set to "codebook" provides only a single-port SRS resource, then s=1 if the DCI format SRI field for scheduling a PUSCH transmission indicates a single-port SRS resource.

[0213] If PUSCH-Config's ul-FullPowerTransmission is set to fullpower, then s=1.

[0214] If ul-FullPowerTransmission is not provided in PUSCH-Config, and each SRS resource in SRS-ResourceSet with its usage set to "codebook" has multiple SRS ports, the UE will use the linear value P as the ratio of the number of antenna ports with non-zero PUSCH transmit power to the maximum number of SRS ports that the UE supports for a single SRS resource. - PUSCH , b,f,c (i,j,q d Scale l).

[0215] The UE may evenly distribute the power to the antenna ports from which it transmits the PUSCH signal at non-zero power.

[0216] Even when the UL MIMO codebook is [1 0 0 0], the received power is distributed equally to the antenna ports. That is, the received power is P cMax This amounts to 25%. Therefore, full power enhancement was supported in Rel.16.

[0217] <Fifth Embodiment> [Setting the coefficient s] The UE determines the push transmit power for each panel according to the method of each embodiment described above. The UE scales the push transmit power by a coefficient s. Full power transmit modes (fullpowerMode1, fullpowerMode2, fullpower) may be set for each panel.

[0218] When fullpowerMode1 is set on the panel, the coefficient s is the ratio of the number of antenna ports associated with the panel that support non-zero power push transmissions to the maximum number of SRS ports that the panel supports on a single SRS resource.

[0219] For a panel, if fullpowerMode2 is set, s=1 for the full-power TPMI reported by the UE. For the remaining TPMIs, s is the ratio of the number of antenna ports associated with the panel for non-zero-power push transmissions to the number of SRS ports. The number of SRS ports is the number of SRS ports of the SRS resource indicated for push transmissions and associated with the panel. If the SRS resource indicated for push transmissions and associated with the panel is a single port, s=1. Full-power TPMIs may be reported per panel.

[0220] If the panel is set to full power, s=1. For panels not set to full power mode, s is the ratio of the number of antenna ports associated with the panel that support non-zero power push transmissions to the maximum number of SRS ports the panel supports with a single SRS resource. The UE equally distributes the panel's power to the antenna ports associated with the panel that transmits non-zero power pushes.

[0221] [Distribution of transmission power] When calculating the transmission power for each UE (Option 1 of the first embodiment), the transmission (output) power (maximum transmission (output) power) may be equally distributed to each transmission antenna port / transmission panel (Fig. 6A). Or when calculating the transmission power for each UE, the transmission power (maximum transmission power) may be distributed differently for each transmission antenna port / transmission panel (Fig. 6B). The ratio of the transmission power of each transmission antenna port / transmission panel may be set by upper layer signaling / physical layer signaling, or may be set / determined according to the reported UE capabilities.

[0222] When calculating the transmission power for each panel (Option 2 of the first embodiment), the transmission (output) power (maximum transmission (output) power) may be equally distributed to each transmission antenna port / transmission panel (Fig. 6A), or may be distributed differently for each transmission antenna port / transmission panel (Fig. 6B).

[0223] According to this embodiment, the UE can appropriately distribute the output power to the multi-panel.

[0224] <Others> Support the dynamic switching between single-panel transmission / reception and multi-panel simultaneous transmission / reception. When single-panel transmission is instructed, at least one of the examples of the present disclosure may be applied, or the power control of Rel. 17 may be applied.

[0225] <UE capability> A UE may transmit (report) UE capability information to the network (base station) indicating whether it supports at least one of the examples in this disclosure. A UE may also receive instructions / settings (e.g., instructions / settings for enable / disable) relating to at least one of the examples in this disclosure via upper-layer signaling / physical-layer signaling. Such instructions / settings may correspond to the UE capability information transmitted by the UE. At least one of the examples in this disclosure may apply only to the UE that received such instructions / settings, the UE that transmitted the corresponding UE capability information, or the UE that supports the corresponding UE capability. The UE capability information may be, for example, at least one of (1) to (8) below.

[0226] (1) Whether it supports power control for each panel. (2) The number of power control loops (power control loop index) to support. (3) The total number of single-panel and multi-panel simultaneous transmissions that are supported. (4) The number of single-panel transmissions supported. (5) The number of multi-panel simultaneous transmissions that can be supported. (6) Whether to support full / partial / non-overlapping PUSCH resource allocation. (7) Whether each panel supports full power transmission mode. (8) In fullpowerMode2, does each panel support full power TPMI?

[0227] (Note) The following invention is added with respect to one embodiment of this disclosure. [Note 1] If simultaneous uplink (UL) transmission from multiple panels is supported, the receiving unit receives the transmission power settings for each panel, Based on the above settings, a control unit controls the UL transmission power for each panel, A terminal. [Note 2] The receiving unit receives the settings for the maximum output power for each serving cell and each carrier. The control unit determines the maximum output power for each panel based on the settings for the maximum output power. The terminals listed in Appendix 1. [Note 3] The control unit determines the maximum output power of each panel using requirements defined based on the peak effective isotropically radiated power (EIRP) measurement value and the total radiated power measurement value for each terminal. The terminals listed in Appendix 1 or Appendix 2. [Note 4] The control unit determines the maximum output power of each panel using requirements defined based on the peak effective isotropically radiated power (EIRP) measurement value and the total radiated power measurement value for each panel. The terminals listed in any of the appendices 1 through 3.

[0228] (Note) The following invention is added with respect to one embodiment of this disclosure. [Note 1] If simultaneous uplink (UL) transmission from multiple panels is supported, the transmitter transmits information indicating the maximum output power for each panel using the Power Headroom Report Medium Access Control Control Element (PHR MAC CE), A control unit that controls the UL simultaneous transmission based on the maximum output power, A terminal. [Note 2] When the control unit supports dynamic switching between single-panel reception and simultaneous multi-panel reception, it supports at least one power control loop for single-panel transmission and at least one power control loop for simultaneous multi-panel transmission. The terminals listed in Appendix 1. [Note 3] At least one of the parameters used for power control of a physical uplink sharing channel (PUSCH) is associated with the transmit setting instruction (TCI) state or sounding reference signal resource indicator (SRI) of the PUSCH; at least one of the parameters used for power control of a physical uplink control channel (PUCCH) is associated with the TCI state or spatial relationship information of the PUCCH; and at least one of the parameters used for power control of a measuring reference signal (SRS) is associated with the TCI state of the SRS. The terminals listed in Appendix 1 or Appendix 2. [Note 4] The output power is distributed equally to each transmitting antenna port or each panel. The terminals listed in any of the appendices 1 through 3.

[0229] (Wireless communication system) The configuration of a wireless communication system according to one embodiment of this disclosure will be described below. In this wireless communication system, communication is performed using any or a combination thereof of the wireless communication methods according to the above embodiments of this disclosure.

[0230] Figure 7 shows an example of a schematic configuration of a wireless communication system according to one embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc., as specified by the Third Generation Partnership Project (3GPP).

[0231] Furthermore, the wireless communication system 1 may 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)), and so on.

[0232] In EN-DC, the LTE (E-UTRA) base station (eNB) is the Master Node (MN), and the NR base station (gNB) is the 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.

[0233] The wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity where both MN and SN are NR base stations (gNB) (NR-NR Dual Connectivity (NN-DC))).

[0234] The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with relatively wide coverage, and base stations 12 (12a-12c) located within the macrocell C1 that form a small cell C2 that is narrower than the macrocell C1. User terminals 20 may be located within at least one cell. The arrangement and number of each cell and user terminal 20 are not limited to the configuration shown in the figure. Hereinafter, when base stations 11 and 12 are not distinguished, they will be collectively referred to as base station 10.

[0235] The user terminal 20 may be connected to at least one of the multiple base stations 10. The user terminal 20 may utilize at least one of Carrier Aggregation (CA) using multiple Component Carriers (CC) and Dual Connectivity (DC).

[0236] Each CC may be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). A macrocell C1 may be included in FR1, and a 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 above 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may fall in a frequency band higher than FR2.

[0237] Furthermore, the user terminal 20 may communicate using at least one of the following methods at each CC: Time Division Duplex (TDD) and Frequency Division Duplex (FDD).

[0238] Multiple base stations 10 may be connected by wire (e.g., optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.) or wireless (e.g., NR communication). For example, if NR communication is used as a backhaul between base stations 11 and 12, base station 11, which is the upstream station, may be called an Integrated Access Backhaul (IAB) donor, and base station 12, which is the relay station, may be called an IAB node.

[0239] Base station 10 may be connected to the core network 30 via other base stations 10 or directly. The core network 30 may include at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), etc.

[0240] The user terminal 20 may be a terminal that supports at least one of the following communication methods: LTE, LTE-A, 5G, etc.

[0241] In the wireless communication system 1, an orthogonal frequency division multiplexing (OFDM)-based wireless access scheme may be used. 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), etc., may be used in at least one of the downlink (DL) and uplink (UL).

[0242] The wireless access method may also be called a waveform. In wireless communication system 1, other wireless access methods (for example, other single-carrier transmission methods, other multi-carrier transmission methods) may be used for the UL and DL wireless access methods.

[0243] In the wireless communication system 1, a Physical Downlink Shared Channel (PDSCH), a Broadcast Channel (PBCH), or a Physical Downlink Control Channel (PDCCH) may be used as the downlink channel, shared by each user terminal 20.

[0244] Furthermore, in the wireless communication system 1, the uplink channel may include a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a Physical Random Access Channel (PRACH), or the like, all of which are shared by each user terminal 20.

[0245] User data, higher-layer control information, and System Information Blocks (SIBs) are transmitted via PDSCH. User data and higher-layer control information may also be transmitted via PUSCH. Furthermore, Master Information Blocks (MIBs) may be transmitted via PBCH.

[0246] Lower-layer control information may be transmitted by PDCCH. The lower-layer control information may include, for example, Downlink Control Information (DCI) which includes scheduling information for at least one of PDSCH and PUSCH.

[0247] Furthermore, the DCI that schedules PDSCH may be called a DL assignment or DL ​​DCI, and the DCI that schedules PUSCH may be called a UL grant or UL DCI. Furthermore, PDSCH may be interpreted as DL data, and PUSCH may be interpreted as UL data.

[0248] PDCCH detection may utilize a Control Resource Set (CORESET) and a search space. A CORESET corresponds to the resources used to search for DCIs. A search space corresponds to the search area and search method for PDCCH candidates. A single CORESET may be associated with one or more search spaces. The UE may monitor CORESETs associated with a particular search space based on the search space configuration.

[0249] A single search space may correspond to one or more PDCCH candidates corresponding to aggregation levels. One or more search spaces may be referred to as a search space set. In this disclosure, "search space," "search space set," "search space configuration," "search space set configuration," "CORESET," and "CORESET configuration" may be interpreted interchangeably.

[0250] PUCCH may transmit uplink control information (UCI) which includes at least one of the following: channel state information (CSI), delivery acknowledgment (e.g., Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR). PRACH may transmit a random access preamble for establishing a connection with the cell.

[0251] In this disclosure, downlinks, uplinks, etc., may be expressed without the prefix "link." Also, the prefix "physical" may be omitted when describing various channels.

[0252] 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 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.

[0253] The synchronization signal may be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be called an SS / PBCH block, SS Block (SSB), etc. SS, SSB, etc., may also be called reference signals.

[0254] Furthermore, in the wireless communication system 1, the Uplink Reference Signal (UL-RS) may transmit the Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS), etc. The DMRS may also be called the User-Specific Reference Signal (UE-specific Reference Signal).

[0255] (base station) Figure 8 shows an example of the configuration of a base station according to one 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 one or more of the control unit 110, transceiver unit 120, transceiver antenna 130, and transmission line interface 140 may be provided.

[0256] In this example, the functional blocks of the characteristic parts of this 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 part described below may be omitted.

[0257] The control unit 110 controls the entire base station 10. The control unit 110 can consist of a controller, control circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0258] The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception, measurement, etc., using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140. The control unit 110 may generate data to be transmitted as signals, control information, sequences, etc., and transfer them to the transceiver unit 120. The control unit 110 may also perform call processing of communication channels (setting, releasing, etc.), status management of the base station 10, management of radio resources, etc.

[0259] The transmitting / receiving 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 transmitting / receiving unit 120 can be composed of a transmitter / receiver, RF circuit, baseband circuit, filter, phase shifter, measurement circuit, transmitting / receiving circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0260] The transmitting / receiving unit 120 may be configured as an integrated transmitting / receiving unit, or it may be composed of a transmitting unit and a receiving unit. The transmitting unit may consist of a transmitting processing unit 1211 and an RF unit 122. The receiving unit may consist of a receiving processing unit 1212, an RF unit 122 and a measuring unit 123.

[0261] The transmitting and receiving antenna 130 can be composed of an antenna described based on common understanding in the art relating to this disclosure, such as an array antenna.

[0262] The transmitting / receiving unit 120 may transmit the downlink channel, synchronization signal, downlink reference signal, etc. The transmitting / receiving unit 120 may also receive the uplink channel, uplink reference signal, etc.

[0263] The transmitting / receiving unit 120 may form at least one of the transmitting beam and the receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0264] The transmitting / receiving unit 120 (transmission processing unit 1211) may perform processing on data and control information acquired from the control unit 110, for example, at the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer (e.g., RLC retransmission control), the Medium Access Control (MAC) layer (e.g., HARQ retransmission control), etc., to generate a bit sequence to be transmitted.

[0265] The transmitting / receiving unit 120 (transmission processing unit 1211) may perform transmission processing on the bit sequence to be transmitted, 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, and output a baseband signal.

[0266] The transmitting / receiving unit 120 (RF unit 122) may perform modulation, filtering, amplification, etc., of the baseband signal to the radio frequency band and transmit the signal in the radio frequency band via the transmitting / receiving antenna 130.

[0267] 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.

[0268] The transmitting / receiving unit 120 (receiving processing unit 1212) may apply reception processing to the acquired baseband signal, such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, to acquire user data, etc.

[0269] The transmitting / receiving unit 120 (measurement unit 123) may perform measurements related to 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 also measure received power (e.g., Reference Signal Received Power (RSRP)), reception 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.

[0270] The transmission path interface 140 may send and receive signals (backhaul signaling) with devices included in the core network 30, other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0271] In this disclosure, the transmitting and receiving units of the base station 10 may consist of at least one of a transmitting / receiving unit 120, a transmitting / receiving antenna 130, and a transmission path interface 140.

[0272] The transmitting / receiving unit 120 may transmit settings for the transmission power of each panel if simultaneous uplink (UL) transmission from multiple panels is supported. Based on these settings, the control unit 110 may control the UL transmission power of each panel and control the reception of UL signals using the UL transmission power.

[0273] Furthermore, if simultaneous uplink (UL) transmission from multiple panels is supported, the transmitting / receiving unit 120 may receive information indicating the maximum output power for each panel using a Power Headroom Report Medium Access Control Control Element (PHR MAC CE). The control unit 110 may control the reception of the simultaneous UL transmission transmitted based on the maximum output power.

[0274] (User terminal) Figure 9 shows an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. Note that one or more of the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may be provided.

[0275] In this example, the functional blocks of the characteristic parts of this 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 part described below may be omitted.

[0276] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, control circuit, etc., as described based on common understanding in the technical field related to this disclosure.

[0277] The control unit 210 may control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc., using the transmitting / receiving unit 220 and the transmitting / receiving antenna 230. The control unit 210 may generate data to be transmitted as signals, control information, sequences, etc., and transfer them to the transmitting / receiving unit 220.

[0278] The transmitting / receiving 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 transmitting / receiving unit 220 can be composed of a transmitter / receiver, RF circuit, baseband circuit, filter, phase shifter, measurement circuit, transmitting / receiving circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0279] The transmitting / receiving unit 220 may be configured as an integrated transmitting / receiving unit, or it may be composed of a transmitting unit and a receiving unit. The transmitting unit may consist of a transmitting processing unit 2211 and an RF unit 222. The receiving unit may consist of a receiving processing unit 2212, an RF unit 222 and a measuring unit 223.

[0280] The transmitting and receiving antenna 230 can be composed of an antenna described based on common understanding in the art relating to this disclosure, such as an array antenna.

[0281] The transmitting / receiving unit 220 may receive the downlink channel, synchronization signal, downlink reference signal, etc. The transmitting / receiving unit 220 may also transmit the uplink channel, uplink reference signal, etc.

[0282] The transmitting / receiving unit 220 may form at least one of the transmitting beam and the receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0283] The transmitting / receiving 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 and control information acquired from the control unit 210, etc., to generate a bit sequence to be transmitted.

[0284] The transmitting / receiving unit 220 (transmission processing unit 2211) may perform transmission processing on the bit sequence to be transmitted, 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, and output a baseband signal.

[0285] Whether or not to apply DFT processing may be based on the transform precoding settings. The transmitting / receiving unit 220 (transmission processing unit 2211) may perform DFT processing as part of the transmission process to transmit a channel (for example, PUSCH) using a DFT-s-OFDM waveform if transform precoding is enabled for that channel, or it may not perform DFT processing as part of the transmission process if transform precoding is not enabled for that channel.

[0286] The transmitting / receiving unit 220 (RF unit 222) may perform modulation, filtering, amplification, etc., of the baseband signal to the radio frequency band and transmit the signal in the radio frequency band via the transmitting / receiving antenna 230.

[0287] On the other hand, the transmitting / receiving unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, etc., on the radio frequency band signal received by the transmitting / receiving antenna 230.

[0288] The transmitting / receiving unit 220 (receiving processing unit 2212) may apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to acquire user data, etc.

[0289] The transmitting / receiving unit 220 (measuring unit 223) may perform measurements related to the received signal. For example, the measuring unit 223 may perform RRM measurement, CSI measurement, etc., based on the received signal. The measuring unit 223 may also 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.

[0290] In this disclosure, the transmitting and receiving units of the user terminal 20 may consist of at least one of a transmitting / receiving unit 220 and a transmitting / receiving antenna 230.

[0291] Furthermore, if simultaneous uplink (UL) transmission from multiple panels is supported, the transmitting / receiving unit 220 may receive settings for the transmission power of each panel. The control unit 210 may control the UL transmission power for each panel based on these settings.

[0292] The transmitting / receiving unit 220 may receive settings regarding the maximum output power for each serving cell and each carrier. The control unit 210 may determine the maximum output power for each panel based on the settings regarding the maximum output power.

[0293] The control unit 210 may determine the maximum output power of each panel using requirements defined based on the peak effective isotropically radiated power (EIRP) measurement value and the total radiated power measurement value for each terminal.

[0294] The control unit 210 may determine the maximum output power of each panel using requirements defined based on the peak effective isotropically radiated power (EIRP) measurement value and the total radiated power measurement value for each panel.

[0295] If simultaneous uplink (UL) transmission from multiple panels is supported, the transmitting / receiving unit 220 may transmit information indicating the maximum output power for each panel using a Power Headroom Report Medium Access Control Control Element (PHR MAC CE). The control unit 210 may control the simultaneous UL transmission based on the maximum output power.

[0296] If the control unit 210 supports dynamic switching between single-panel reception and multi-panel simultaneous reception, it may support at least one power control loop for single-panel transmission and at least one power control loop for multi-panel simultaneous transmission.

[0297] At least one of the parameters used for physical uplink sharing channel (PUSCH) power control may be associated with the transmit setting instruction (TCI) state or sounding reference signal resource indicator (SRI) of the PUSCH; at least one of the parameters used for physical uplink control channel (PUCCH) power control may be associated with the TCI state or spatial relationship information of the PUCCH; and at least one of the parameters used for measuring reference signal (SRS) power control may be associated with the TCI state of the SRS. Output power may be distributed equally to each transmitting antenna port or each panel.

[0298] (Hardware configuration) The block diagrams used in the description of the above embodiments show functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one device that is physically or logically coupled, or it may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wired or wireless connections). A functional block may also be realized by combining the above one device or the above multiple devices with software.

[0299] Here, functions include, but are not limited to, judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating (mapping), and assigning. For example, a functional block (configuration part) that enables transmission may be called a transmitting unit or transmitter. In all cases, as mentioned above, the method of implementation is not particularly limited.

[0300] For example, a base station, user terminal, etc. in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure. Figure 10 is a diagram showing an example of the hardware configuration of a base station and user terminal according to one embodiment. The base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0301] In this disclosure, terms such as apparatus, circuit, device, section, and unit are interchangeable. The hardware configuration of the base station 10 and the user terminal 20 may include one or more of the devices shown in the figure, or it may be configured to omit some of the devices.

[0302] For example, although only one processor 1001 is shown in the diagram, there may be multiple processors. Furthermore, processing may be performed by one processor, or by two or more processors simultaneously, sequentially, or by other means. Note that processor 1001 may be implemented using one or more chips.

[0303] Each function in the base station 10 and the user terminal 20 is realized, for example, by loading predetermined software (programs) onto hardware such as the processor 1001 and memory 1002, which allows the processor 1001 to perform calculations and control communication via the communication device 1004, or to control at least one of the reading and writing of data in the memory 1002 and storage 1003.

[0304] The processor 1001 controls the entire computer, for example, by running an operating system. The processor 1001 may be composed of a central processing unit (CPU) that includes interfaces with peripheral devices, control units, arithmetic units, registers, etc. For example, at least a part of the control unit 110 (210) and the transmitting / receiving unit 120 (220) described above may be implemented by the processor 1001.

[0305] Furthermore, the processor 1001 reads programs (program code), 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 accordingly. The program used is one that causes the computer to execute at least a part of the operations described in the above embodiment. 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 other functional blocks may be implemented similarly.

[0306] Memory 1002 is a computer-readable recording medium and may consist of at least one of the following: Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), or other suitable storage medium. Memory 1002 may also be called a register, cache, or main memory. Memory 1002 can store executable programs (program code), software modules, etc., for carrying out a wireless communication method according to one embodiment of this disclosure.

[0307] Storage 1003 is a computer-readable recording medium and may consist of at least one of the following: a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disk (Compact Disc ROM (CD-ROM)), a digital multipurpose disk, a Blu-ray disk), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, stick, key drive), a magnetic stripe, a database, a server, or other suitable storage medium. Storage 1003 may also be called an auxiliary storage device.

[0308] The communication device 1004 is hardware (transmitting / receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, network controller, network card, communication module, etc. The communication device 1004 may be configured to include, for example, a high-frequency switch, duplexer, filter, frequency synthesizer, etc., in order to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmitting / receiving unit 120 (220), transmitting / receiving antenna 130 (230), etc., may be implemented by the communication device 1004. The transmitting / receiving unit 120 (220) may be implemented with physically or logically separated implementations of a transmitting unit 120a (220a) and a receiving unit 120b (220b).

[0309] The input device 1005 is an input device that accepts input from an external source (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.). The output device 1006 is an output device that outputs to an external source (e.g., a display, speaker, light-emitting diode (LED) lamp, etc.). The input device 1005 and the output device 1006 may be configured as an integrated unit (e.g., a touch panel).

[0310] Furthermore, each device, such as the processor 1001 and memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or different buses may be configured for each device.

[0311] 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), and a field programmable gate array (FPGA), and some or all of each functional block may be implemented using such hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0312] (modified version) In addition, terms used in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, channel, symbol, and signal (signal or signaling) may be used interchangeably. Also, a signal may be a message. A reference signal may be abbreviated as RS and may be called a pilot, pilot signal, etc., depending on the applicable standard. Also, a component carrier (CC) may be called a cell, frequency carrier, carrier frequency, etc.

[0313] A wireless frame may consist of one or more periods (frames) in the time domain. Each of these periods (frames) constituting a wireless frame may be called a subframe. Furthermore, a subframe may consist 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.

[0314] Here, the neuralelogy may be communication parameters applied to at least one of the transmission and reception of a signal or channel. The neuralelogy may be, for example, at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, specific filtering processes performed by the transceiver in the frequency domain, or specific windowing processes performed by the transceiver in the time domain.

[0315] A slot may consist of one or more symbols in the time domain (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols or Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols). Alternatively, a slot may be a time unit based on neurology.

[0316] A slot may include multiple mini-slots. Each mini-slot may consist of one or more symbols in the time domain. Mini-slots may also be called sub-slots. Mini-slots may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may be called a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may be called a PDSCH (PUSCH) mapping type B.

[0317] Wireless frames, subframes, slots, minislots, and symbols all represent units of time when transmitting a signal. Wireless frames, subframes, slots, minislots, and symbols may each be referred to by different names. Furthermore, the units of time such as frames, subframes, slots, minislots, and symbols in this disclosure may be interpreted as interchangeable.

[0318] For example, one subframe may be called TTI, multiple consecutive subframes may be called TTI, or one slot or one mini-slot may be called TTI. In other words, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. Note that the unit representing TTI may be called a slot, mini-slot, etc., instead of a subframe.

[0319] Here, TTI refers to, for example, the smallest unit of time for scheduling in wireless communication. For example, in an LTE system, the base station schedules each user terminal to allocate wireless resources (such as the frequency bandwidth and transmission power available to each user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0320] TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, code words, etc., or it may be a processing unit for scheduling, link adaptation, etc. Given a TTI, the actual time interval (e.g., number of symbols) to which the transport block, code block, code word, etc. are mapped may be shorter than the given TTI.

[0321] Furthermore, if one slot or one mini-slot is referred to as TTI, then one or more TTIs (i.e., one or more slots or one or more mini-slots) may constitute the minimum time unit of scheduling. In addition, the number of slots (number of mini-slots) that constitute the minimum time unit of scheduling may be controlled.

[0322] A TTI with a time length of 1 ms may also be called a normal TTI (TTI in 3GPP Rel.8-12), a long TTI, a normal subframe, a long subframe, or a slot. A TTI shorter than a normal TTI may also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini slot, a sub slot, or a slot.

[0323] Furthermore, long TTIs (e.g., normal TTIs, subframes, etc.) may be interpreted as TTIs with a time length exceeding 1 ms, and short TTIs (e.g., shortened TTIs, etc.) may be interpreted as TTIs with a TTI length less than that of a long TTI but 1 ms or more.

[0324] A Resource Block (RB) is a resource allocation unit in the time domain and frequency domain, and in the frequency domain, it may contain one or more consecutive subcarriers. The number of subcarriers in an RB may be the same regardless of the neurology, for example, 12. The number of subcarriers in an RB may be determined based on the neurology.

[0325] Furthermore, an RB may contain one or more symbols in the time domain and may have the length of one slot, one minislot, one subframe, or one TTI. Each TTI, subframe, etc., may consist of one or more resource blocks.

[0326] One or more RBs may also be called Physical RBs (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0327] Furthermore, a resource block may consist of one or more resource elements (REs). For example, one RE may be a radio resource area comprising one subcarrier and one symbol.

[0328] A Bandwidth Part (BWP) (also called a partial bandwidth) may represent a subset of consecutive common resource blocks (RBs) for a given neurology in a given carrier. Here, the common RBs may be identified by an index of the RBs relative to the carrier's common reference point. PRBs may be defined and numbered within a BWP.

[0329] A BWP may include UL BWPs (BWPs for UL) and DL BWPs (BWPs for DL). One or more BWPs may be configured within a single carrier for a UE.

[0330] At least one of the configured BWPs may be active, and the UE does not need to assume that it will send or receive a given signal / channel outside of the active BWP. In this disclosure, terms such as "cell" and "carrier" may be read as "BWP".

[0331] The structures described above, such as wireless frames, subframes, slots, minislots, and symbols, are merely illustrative examples. For instance, the number of subframes included in a wireless frame, the number of slots per subframe or wireless frame, the number of minislots within a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, and the number of symbols, symbol length, and cyclic prefix (CP) length within a TTI can be varied in various ways.

[0332] Furthermore, the information, parameters, etc., described in this disclosure may be expressed using absolute values, relative values ​​from a predetermined value, or corresponding other information. For example, wireless resources may be indicated by a predetermined index.

[0333] The names used for parameters and other elements in this disclosure are not restrictive in any way. Furthermore, mathematical formulas and other elements that use these parameters may differ from those expressly disclosed in this disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, and therefore, the various names assigned to these various channels and information elements are not restrictive in any way.

[0334] The information, signals, etc. described in this disclosure may be represented using any of the various different techniques. For example, the data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0335] Furthermore, information, signals, etc., can be output from upper layers to lower layers and from lower layers to upper layers, or to at least one of the two. Information, signals, etc., may also be input and output via multiple network nodes.

[0336] Input and output information and signals may be stored in a specific location (e.g., memory) or managed using a management table. Input and output information and signals may be overwritten, updated, or appended to. Output information and signals may be deleted. Input information and signals may be transmitted to other devices.

[0337] Information notification is not limited to the embodiments described herein and may be carried out by other means. For example, information notification in this disclosure may be carried out by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB)), Medium Access Control (MAC) signaling), other signals, or a combination thereof).

[0338] Physical layer signaling may also be called Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signals), L1 control information (L1 control signals), etc. RRC signaling may also be called RRC messages, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc. MAC signaling may also be communicated using, for example, MAC Control Element (CE).

[0339] Furthermore, notification of the specified information (for example, notification that "X is the case") is not limited to explicit notification, but may also be made implicitly (for example, by not notifying the specified information or by notifying other information).

[0340] The determination may be made by a value represented by 1 bit (0 or 1), by a boolean value represented as true or false, or by a numerical comparison (for example, a comparison with a predetermined value).

[0341] Software should be broadly interpreted to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and so on, whether they are called software, firmware, middleware, microcode, hardware description languages, or by any other name.

[0342] Furthermore, software, instructions, information, etc., may be transmitted and received via a transmission medium. For example, if software is transmitted from a website, server, or other remote source using at least one of wired technology (such as coaxial cable, fiber optic cable, twisted pair, or Digital Subscriber Line (DSL)) and wireless technology (such as infrared or microwave), then at least one of these wired and wireless technologies is included in the definition of a transmission medium.

[0343] The terms “system” and “network” as used in this disclosure may be used interchangeably. “Network” may also mean the equipment included in the network (e.g., base stations).

[0344] 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," "antenna port group," "layer," "number of layers," "rank," "resource," "resource set," "resource group," "beam," "beam width," "beam angle," "antenna," "antenna element," and "panel" may be used interchangeably.

[0345] In this disclosure, terms such as "Base Station (BS)", "wireless base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "panel", "cell", "sector", "cell group", "carrier", and "component carrier" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0346] A base station can house one or more (e.g., three) cells. If a base station houses multiple cells, the entire coverage area of ​​the base station can be divided into several smaller areas, each of which may also be provided with communication services 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 ​​at least one of the base station and / or base station subsystems that provide communication services in that coverage.

[0347] In this disclosure, the transmission of information by a base station to a terminal may be interpreted as the base station instructing the terminal to perform a control / operation based on said information.

[0348] In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

[0349] A mobile station may also be called a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate term.

[0350] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc. At least one of the base station and the mobile station may also be a device mounted on a moving object, the moving object itself, etc.

[0351] The term "mobile object" refers to any movable object, regardless of its speed, and naturally includes cases where the mobile object is stationary. Examples of such mobile objects include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcarts, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones, multicopters, quadcopters, balloons, and items carried on them. Furthermore, such mobile objects may be autonomously driven objects operating based on operational commands.

[0352] The mobile entity may be a vehicle (e.g., a car, an airplane), an unmanned mobile entity (e.g., a drone, an autonomous vehicle), or a robot (manned or unmanned). At least one of the base station and the mobile station may be a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0353] Figure 11 shows an example of a vehicle according to one embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotation speed sensor 51, a pneumatic 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.

[0354] The drive unit 41 consists of, for example, at least one of an engine, a motor, or an engine-motor hybrid. 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 the user.

[0355] The electronic control unit 49 consists of a microprocessor 61, memory (ROM, RAM) 62, and communication ports (e.g., input / output (IO) ports) 63. Signals from various sensors 50-58 installed in the vehicle are input to the electronic control unit 49. The electronic control unit 49 may also be called an Electronic Control Unit (ECU).

[0356] Signals from various sensors 50-58 include current signals from current sensor 50 for sensing motor current, rotational speed signals of front wheels 46 / rear wheels 47 acquired by rotational speed sensor 51, air pressure signals of front wheels 46 / rear wheels 47 acquired by air pressure sensor 52, vehicle speed signals acquired by vehicle speed sensor 53, acceleration signals acquired by acceleration sensor 54, accelerator pedal depression signal of accelerator pedal 43 acquired by accelerator pedal sensor 55, brake pedal depression signal of brake pedal 44 acquired by brake pedal sensor 56, operation signals of shift lever 45 acquired by shift lever sensor 57, and detection signals for detecting obstacles, vehicles, pedestrians, etc., acquired by object detection sensor 58.

[0357] The information service unit 59 consists of various devices for providing (outputting) various types of information such as driving information, traffic information, and entertainment information, including a car navigation system, audio system, speakers, displays, television, and radio, and one or more ECUs that control these devices. The information service unit 59 uses information acquired from external devices via a communication module 60 or the like to provide various types of information / services (e.g., multimedia information / multimedia services) to the occupants of the vehicle 40.

[0358] The information service unit 59 may include input devices that accept input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) and output devices that perform output to the outside (e.g., display, speaker, LED lamp, touch panel, etc.).

[0359] The driver assistance system unit 64 consists of various devices that provide functions to prevent accidents or reduce the driver's workload, 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 Unit (IMU), Inertial Navigation System (INS)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driver assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driver assistance functions or autonomous driving functions.

[0360] 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 sends and receives data (information) via the communication port 63 to 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, axle 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50-58 provided in the vehicle 40.

[0361] The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with external devices. For example, it can send and receive various types of information to and from external devices 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. Alternatively, the communication module 60 may be, for example, at least one of the base station 10 and the user terminal 20 (it may function as at least one of the base station 10 and the user terminal 20).

[0362] The communication module 60 may transmit at least one of the following to an external device via wireless communication: signals from the various sensors 50-58 input to the electronic control unit 49, information obtained based on said signals, and information based on input from an external source (user) obtained via the information service unit 59. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc., may also be called input units that accept input. For example, the PUSCH transmitted by the communication module 60 may include information based on the above input.

[0363] The communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device and displays it on the information service unit 59 installed in the vehicle. The information service unit 59 may also be called an output unit, which outputs information (for example, it outputs information to devices such as displays and speakers based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 60).

[0364] 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, axle 48, various sensors 50-58, etc., which are provided in the vehicle 40.

[0365] Furthermore, the term "base station" in this disclosure may be interpreted as "user terminal." For example, the various aspects / embodiments of this disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X)). In this case, the user terminal 20 may have the functions that the base station 10 has. Also, terms such as "uplink" and "downlink" may be interpreted as terms corresponding to terminal-to-terminal communication (for example, "sidelink"). For example, uplink channel and downlink channel may be interpreted as sidelink channel.

[0366] Similarly, the term "user terminal" in this disclosure may be replaced with "base station." In this case, the base station 10 may be configured to have the same functions as the user terminal 20 described above.

[0367] In this disclosure, operations performed by a base station may, in some cases, be performed by its upper node. In a network including one or more network nodes with base stations, it is clear that various operations performed for communication with terminals may be performed by the base station, one or more network nodes other than the base station (for example, a Mobility Management Entity (MME), a Serving Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0368] Each aspect / embodiment described in this disclosure may be used individually, in combination, or switched between during execution. Furthermore, the processing procedures, sequences, flowcharts, etc., of each aspect / embodiment described in this disclosure may be rearranged in order, provided they are consistent. For example, the methods described in this disclosure present various step elements in an exemplary order and are not limited to that specific order.

[0369] Each aspect / embodiment described in this disclosure includes 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 (where x is, for example, an integer or decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM®), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi®), IEEE 802.16 (WiMAX®), and IEEE This may apply to systems utilizing 802.20, Ultra-WideBand (UWB), Bluetooth®, or other appropriate wireless communication methods, as well as next-generation systems that are extended, modified, created, or defined based on these. It may also apply to combinations of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

[0370] In this disclosure, the phrase "based on" does not mean "based solely on" unless otherwise specified. In other words, the phrase "based on" means both "based solely on" and "based at least on."

[0371] Any reference to elements using the designations “first,” “second,” etc., as used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Accordingly, the references to the first and second elements do not imply that only two elements may be employed or that the first element must precede the second element in any way.

[0372] The term “determining” as used in this disclosure may encompass a wide variety of actions. For example, “determining” may be considered to include judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiry (e.g., searching in tables, databases, or other data structures), ascertaining, etc.

[0373] Furthermore, "judgment (decision)" may be considered as "judging (deciding)" things like receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory).

[0374] Furthermore, "judgment (decision)" can be considered as "judging (deciding)" something like resolving, selecting, choosing, establishing, comparing, etc. In other words, "judgment (decision)" can be considered as "judging (deciding)" something about an action.

[0375] Furthermore, "judgment (decision)" can be replaced with "assuming," "expecting," or "considering."

[0376] The term "maximum transmit power" as used in this disclosure may mean the maximum transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0377] As used in this disclosure, the terms “connected,” “coupled,” and any variations thereof mean any direct or indirect connection or coupling between two or more elements, and may include one or more intermediate elements between two elements that are “connected” or “coupled” with each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, “connection” may be replaced with “access.”

[0378] In this disclosure, when two elements are connected, they can be considered to be “connected” or “coupled” to each other using one or more wires, cables, printed electrical connections, etc., and, in some non-exclusive and non-exclusive examples, electromagnetic energy having wavelengths in the radio frequency domain, microwave domain, or optical domain (both visible and invisible).

[0379] In this 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 "combine" may be interpreted similarly to "different."

[0380] Where the terms “include,” “including,” and variations thereof are used in this disclosure, these terms are intended to be inclusive, as is the term “comprising.” Furthermore, the term “or” as used in this disclosure is not intended to mean exclusive OR.

[0381] In this disclosure, if articles are added by translation, such as a, an, and the in English, this disclosure may include the fact that the noun following these articles is plural.

[0382] Although the invention described herein has been explained in detail above, it will be clear to those skilled in the art that the invention described herein is not limited to the embodiments described herein. The invention described herein can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined in the claims. Therefore, the descriptions herein are for illustrative purposes only and do not imply any limitation on the invention described herein.

Claims

1. If simultaneous uplink (UL) transmission from multiple panels is supported, the receiving unit receives the settings for UL transmission power for each Transmission Configuration Indication state (TCI state), The system includes a control unit that controls the UL transmission power for each TCI state based on the above settings and the maximum output power for each TCI state, The measured peak effective isotropically radiated power (EIRP) corresponding to the aforementioned maximum output power satisfies the requirements defined using power management maximum power reduction (P-MPR) for each TCI state. Terminal.

2. If simultaneous uplink (UL) transmission from multiple panels is supported, the process includes receiving settings for UL transmission power for each Transmission Configuration Indication state (TCI state), The process includes controlling the UL transmission power for each TCI state based on the above settings and the maximum output power for each TCI state, The measured peak effective isotropically radiated power (EIRP) corresponding to the aforementioned maximum output power satisfies the requirements defined using power management maximum power reduction (P-MPR) for each TCI state. The wireless communication method used by the terminal.

3. If simultaneous uplink (UL) transmission from multiple panels is supported, the transmitter unit transmits settings related to UL transmission power for each Transmission Configuration Indication state (TCI state), Based on the above settings and the maximum output power for each TCI state, the UL transmission power of the terminal is controlled for each TCI state, and a control unit controls the reception of UL signals using the UL transmission power, The measured peak effective isotropically radiated power (EIRP) corresponding to the aforementioned maximum output power satisfies the requirements defined using power management maximum power reduction (P-MPR) for each TCI state. Base station.

4. A system including a terminal and a base station, The aforementioned base station is If simultaneous uplink (UL) transmission from multiple panels is supported, the system has a transmitter that transmits settings related to UL transmission power for each Transmission Configuration Indication state (TCI state). The aforementioned terminal is A receiving unit that receives the aforementioned settings, The system includes a control unit that controls the UL transmission power for each TCI state based on the above settings and the maximum output power for each TCI state, The measured peak effective isotropically radiated power (EIRP) corresponding to the aforementioned maximum output power satisfies the requirements defined using power management maximum power reduction (P-MPR) for each TCI state. system.

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