Terminal, wireless communication method, base station and system

Abstract

A terminal according to one aspect of the present disclosure is characterized by comprising: a transmission unit that, when uplink (UL) simultaneous transmission from a multi-panel is supported, transmits information indicating the maximum output power of each panel using a Power Headroom Report Medium Access Control Control Element (PHR MAC CE); and a control unit that controls the UL simultaneous transmission using the maximum output power. According to the one aspect of the present disclosure, it is possible to appropriately perform transmission power control of each panel.

Description

Terminal, wireless communication method and base station

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

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

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

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

[0005] In future wireless communication systems, a UE may use one of multiple panels (or multiple beams) for uplink (UL) transmission. To improve UL throughput / reliability, simultaneous UL transmission using multiple panels (e.g., simultaneous multi-panel UL transmission (SiMPUL)) is being considered.

[0006] However, when simultaneous UL transmission from multiple panels is supported, the transmission power control for each panel is not clearly defined. This may result in inappropriate transmission control for each panel, resulting in a decrease in communication throughput.

[0007] Therefore, one object of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately control the transmission power for each panel.

[0008] A terminal according to one aspect of the present disclosure is characterized in that it has a transmitter that transmits information indicating the maximum output power for each panel using a Power Headroom Report Medium Access Control Control Element (PHR MAC CE) when simultaneous uplink (UL) transmission from multiple panels is supported, and a controller that controls the simultaneous UL transmission based on the maximum output power.

[0009] According to one aspect of the present disclosure, transmission power control can be appropriately performed for each panel.

[0010] 1A to 1C are diagrams showing examples of PUSCH transmission using multiple panels. FIGS. 2A and 2B are diagrams showing examples of PUCCH transmission using multiple panels. FIG. 3A is a diagram showing an example of PUSCH simultaneous transmission using two panels. FIG. 3B is a diagram showing an example of PUCCH simultaneous transmission using two panels. FIG. 3C is a diagram showing an example of SRS simultaneous transmission using two panels. FIG. 4 is a diagram showing the relationship between UE power class and UE type. FIG. 5 is a diagram showing the relationship between the maximum output power P for each panel. ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐFIG. 6A is a diagram illustrating an example of a PHR MAC CE including: FIG. 6A is a diagram illustrating an example of a case where transmission power is equally distributed to each transmission panel; FIG. 6B is a diagram illustrating an example of a case where transmission power is distributed differently to each transmission panel; FIG. 7 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment; FIG. 8 is a diagram illustrating an example of a configuration of a base station according to an embodiment; FIG. 9 is a diagram illustrating an example of a configuration of a user terminal according to an embodiment; FIG. 10 is a diagram illustrating an example of a hardware configuration of a base station and a user terminal according to an embodiment; and FIG. 11 is a diagram illustrating an example of a vehicle according to an embodiment.

[0011] Multi-Panel Transmission: In Rel. 15 and Rel. 16 UEs, only one beam and panel are used for UL transmission at a time (Fig. 1A). In Rel. 17, simultaneous multi-beam and multi-panel UL transmissions are considered for one or more Transmission / Reception Points (TRPs) to improve UL throughput and reliability.

[0012] For simultaneous UL transmission using multiple beams and multiple panels, reception by one TRP with multiple panels (Fig. 1B) or reception by two TRPs with an ideal backhaul (Fig. 1C) is considered. A single PDCCH is considered for scheduling multiple PUSCHs (e.g., simultaneous transmission of PUSCH #1 and PUSCH #2). Panel-specific transmission is considered to be supported, and a panel ID is introduced.

[0013] The base station may configure or indicate panel-specific transmission for UL transmission using a UL Transmission Configuration Indication (TCI) or a panel ID. The UL TCI (UL TCI state) may be based on signaling similar to the DL beam indication supported in Rel. 15. The panel ID may be implicitly or explicitly applied to transmission of at least one of the target RS resource or target RS resource set, PUCCH, SRS, and PRACH. If the panel ID is explicitly signaled, the panel ID 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 multiple panels, a UE may transmit multiple physical uplink control channels (PUCCHs). The following schemes 1 and 2 are being considered as transmission schemes for simultaneous UL transmission using multiple panels 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 a different panel / beam (see Fig. 2A). Each of the two beams is transmitted towards a 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 Fig. 2B). Each of the two beams is transmitted towards a respective TRP.

[0017] Although the example has been described in which the number of multi-panels is two, in the present disclosure, the number of panels may be three or more. In other words, the number of panels, which is two, may be interpreted as three or more.

[0018] Note that Scheme 2 may be applied to repetitive transmission of PUCCH in a single frequency network (SFN).

[0019] (UL TCI Status) In Rel. 16 NR, the use of the UL TCI status as a UL beam indication method is being considered. Notification of the UL TCI status is similar to notification of the UE's DL beam (DL TCI status). Note that the DL TCI status may be interchangeably read as the TCI status for PDCCH / PDSCH.

[0020] The channel / signal (which may be referred to as a target channel / RS) to which the UL TCI state is set (specified) may be, for example, at least one of a PUSCH (DMRS of PUSCH), a PUCCH (DMRS of PUCCH), a random access channel (Physical Random Access Channel (PRACH)), an SRS, etc.

[0021] Furthermore, the RS (source RS) that has a QCL relationship with the channel / signal 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, an RS that has a QCL relationship with the channel / signal may be associated with a panel ID for receiving or transmitting the RS, which may be explicitly configured (or specified) or implicitly determined by higher layer signaling (e.g., RRC signaling, MAC CE, etc.).

[0023] The correspondence between the RS and the panel ID may be set by being included in the UL TCI status information, or may be set by being 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 status may be an existing QCL type A-D, or may be another QCL type, and may include a predetermined spatial relationship, associated antenna ports (port index), etc.

[0025] When a UE is assigned an associated panel ID for an UL transmission (e.g., assigned by a DCI), the UE may perform the UL transmission using the panel corresponding to the panel ID. The panel ID may be associated with a UL TCI state, and when a UL TCI state is assigned (or activated) for a given UL channel / signal, the UE may identify the panel to use for the UL channel / signal transmission according to the panel ID associated with the UL TCI state.

[0026] (Transmission power control) <Transmission power control for PUSH> In NR (e.g., Rel. 16), the transmission power of PUSH is controlled based on the TPC command (also called a value, increase / decrease value, correction value, etc.) indicated by the value of a specified field (also called a TPC command field, etc.) in the DCI.

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

[0028]

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

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

[0031] In formula (1), P ＣＭＡＸ，ｆ，ｃ（ｉ） is, for example, the transmission power of the user terminal (also referred to as maximum transmission power, UE maximum output power, etc.) set for carrier f of serving cell c at transmission opportunity i. Ｏ＿ＰＵＳＣＨ，ｂ，ｆ，ｃ (j) is, for example, a parameter related to the target received power set for the active UL BWP b of the carrier f of the serving cell c in the parameter set setting j (e.g., a parameter related to the transmit power offset, also referred to as the transmit power offset P0, the target received 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 with serving cell c and subcarrier spacing μ, for example. ｂ，ｆ，ｃ (j) is a value provided by a higher layer parameter (e.g., also called msg3-Alpha, p0-PUSCH-Alpha, fractional factor, etc.).

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

[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 TPC command-based value (e.g., power control adjustment state, accumulated value of TPC commands, closed-loop value) of the power control adjustment state index l of the active UL BWP of carrier f for serving cell c and transmission opportunity i, where l may be referred to as the closed-loop index.

[0036] If the UE is not provided with a path loss reference RS (e.g., PUSCH-PathlossReferenceRS) or if the UE is not provided with individual upper layer parameters, the UE may use RS resources from the SSB used to obtain the Master Information Block (MIB) to obtain the PL. ｂ，ｆ，ｃ (q ｄ ) may be calculated.

[0037] When the UE is configured with a number of RS resource indices up to the value of the maximum number of pathloss reference RSs (e.g., maxNrofPUSCH-PathlossReferenceRS) and a set of RS configurations for the RS resource indices according to the pathloss reference RSs, the set of RS resource indices may include one or both of a set of SS / PBCH block indices and a set of CSI-RS resource indices. ｄ 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 may also be used.

[0039] When a UE is provided with a power control configuration for the PUSCH by a sounding reference signal (SRS) resource indicator (SRI) (e.g., SRI-PUSCH-PowerControl) and one or more values ​​of ID of the pathloss reference RS, the UE may obtain a mapping between a set of values ​​for the SRI field in DCI format 0_1 ​​and a set of ID values ​​of the pathloss reference RS from higher layer signaling (e.g., sri-PUSCH-PowerControl-Id in SRI-PUSCH-PowerControl). The UE may obtain the RS resource index q from the ID of the pathloss reference RS mapped to the SRI field value in DCI format 0_1 ​​that schedules the PUSCH. ｄ may be determined.

[0040] If a PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with PUCCH spatial relationship information for the PUCCH resource with the lowest index for the active UL BWP b of each carrier f and serving cell c, the UE shall transmit the PUCCH spatial relationship information for the PUCCH resource with the same RS resource index q as the PUCCH transmission in that PUCCH resource. ｄ may also be used.

[0041] If the PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with a spatial setting for the PUCCH transmission, or if the PUSCH transmission is scheduled by DCI format 0_1 ​​that does not include an SRI field, or if the UE is not provided with a power control setting for the PUSCH by the SRI, the UE shall select an RS resource index q with an ID of a path loss reference RS of zero. ｄ may also be used.

[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-ConfiguredUplinkGrant), the RS resource index q is determined by a path loss reference index (e.g., pathlossReferenceIndex) in the predetermined parameter. ｄ may be provided to the UE.

[0043] For the PUSCH transmission configured by the configuration grant configuration, if the configuration 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 an RS resource index q with an ID of a pathloss reference RS of zero. ｄ may be determined.

[0044] <Transmission power control for PUCCH> In addition, in NR, the transmission power of PUCCH is controlled based on the TPC command (also called a value, an increase / decrease value, a correction value, an instruction value, etc.) indicated by the value of a predetermined field (also called a TPC command field, a first field, etc.) in DCI.

[0045] For example, the power control adjustment state index l is used to determine the PUCCH transmission power (P ＰＵＣＣＨ、ｂ，ｆ，ｃ (i, q ｕ , q ｄ , l)) may be expressed by the following formula (2).

[0046]

[0047] The power control adjustment state may also be referred to as a PUCCH power control adjustment state, a first or second state, and so on.

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

[0049] In formula (2), P ＣＭＡＸ，ｆ，ｃ (i) is, for example, the transmit power of the user terminal (also referred to as maximum transmit power, UE maximum output power, etc.) set for carrier f of serving cell c at transmission opportunity i. Ｏ＿ＰＵＣＣＨ，ｂ，ｆ，ｃ (q ｕ ) is, for example, a parameter related to a target received power (e.g., a parameter related to a transmit power offset, also referred to as a transmit power offset P0 or a target received power parameter) set for an active UL BWP b of a carrier f of a serving cell c at a transmission opportunity i.

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

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

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

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

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

[0055] If the UE has an active UL BWP b for carrier f of serving cell c, then P Ｏ＿ＰＵＣＣＨ，ｂ，ｆ，ｃ (q ｕ ) value setting is provided by a higher layer, ｂ，ｆ，ｃ (i, l) = 0, k = 0, 1, ..., i. If the UE is provided with PUCCH spatial related information, the UE ｕ, and the PUCCH spatial relationship information associated with q ｕ The value of l may be determined from the value of

[0056] q ｕ may be a P0 ID for PUCCH (p0-PUCCH-Id) indicating P0 for PUCCH (P0-PUCCH) in a P0 set for PUCCH (p0-Set).

[0057] <SRS Transmission Power Control> For example, using the index l of the power control adjustment state, the transmission power (P ＳＲＳ、ｂ，ｆ，ｃ (i, q ｓ , l) may be expressed by the following formula (3).

[0058] The power control adjustment state may be referred to as an SRS power control adjustment state, a value based on a TPC command, an accumulated value of a TPC command, a value by a closed loop, a first or second state, etc. 1 may be referred to as a closed loop index.

[0059] Furthermore, the SRS transmission opportunity i is a predetermined period during which the SRS is transmitted, and may be composed of, for example, one or more symbols, one or more slots, or the like.

[0060]

[0061] In formula (3), P ＣＭＡＸ，ｆ，ｃ (i) is, for example, the UE maximum output power for carrier f of serving cell c at SRS transmission opportunity i. P Ｏ＿ＳＲＳ，ｂ，ｆ，ｃ (q ｓ ) is the active UL BWP b of carrier f of serving cell c and the SRS resource set q ｓ(provided by SRS-ResourceSet and SRS-ResourceSetId), and a parameter related to the target received power provided by p0 for (for example, a parameter related to the transmit power offset, also referred to as the transmit power offset P0 or the target received power parameter, etc.).

[0062] M ＳＲＳ，ｂ，ｆ，ｃ (i) is the SRS bandwidth in number of resource blocks for SRS transmission opportunity i on active UL BWP b of carrier f of serving cell c and subcarrier spacing μ;

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

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

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

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

[0067] (Power Requirements) NR addresses the issue of Maximum Permitted Exposure (MPE) (or electromagnetic power density exposure). UEs are required to meet Federal Communication Commission (FCC) regulations on maximum radiation to the human body for health and safety reasons.

[0068] For example, in Rel. 15 NR, restrictions using power-management maximum power reduction (P-MPR) are specified to limit exposure. For example, in the case of non-carrier aggregation (CA), the UE maximum output 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 so as to satisfy the following equation (4).

[0069]

[0070] EIRP max Let P-MPR 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 maximum output power reduction allowed for carrier f of serving cell c.f,c is the configured UE maximum output power P CMAX,f,c The corresponding total radiated power P TMAX,f,c is P TMAX,f,c ≦TRP max This becomes:

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

[0072]

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

[0074] That is, the UE must calculate the measured peak EIRP (P UMAX ) is within the lower and upper limits, and the measured total radiated power P TMAX P TMAX ≦TRP ma The maximum output power is P CMAX It can be set as:

[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. This may result in improper transmission control for each panel, resulting in a decrease in communication throughput.

[0076] Therefore, the present inventors came up with the idea of ​​a wireless communication method that can appropriately control the transmission power for each panel.

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

[0078] In the present disclosure, "A / B" and "at least one of A and B" may be interpreted interchangeably. Also, in the present disclosure, "A / B / C" may mean "at least one of A, B, and C."

[0079] In the present disclosure, terms such as activate, deactivate, indicate (or indicate), select, configure, update, and determine may be read interchangeably. In the present disclosure, terms such as support, control, controllable, operate, and operate may be read interchangeably.

[0080] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, fields, information elements (IEs), settings, etc. may be interchangeable. In the present disclosure, Medium Access Control (MAC) control elements (CEs), update commands, activation / deactivation commands, etc. may be interchangeable.

[0081] In the present disclosure, higher layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, and the like, or a combination thereof.

[0082] In the present disclosure, MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. Broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

[0083] In the present disclosure, physical layer signaling may be, for example, Downlink Control Information (DCI), Uplink Control Information (UCI), and the like.

[0084] In the present disclosure, the terms index, identifier (ID), indicator, resource ID, etc. may be interchangeable. In the present disclosure, the terms sequence, list, set, group, cluster, subset, etc. may be interchangeable.

[0085] In the present disclosure, the terms panel, UE panel, panel group, beam, beam group, precoder, Uplink (UL) transmitting entity, Transmission / Reception Point (TRP), base station, Spatial Relation Information (SRI), spatial relation, 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 relation group, Code Division Multiplexing (CDM) group, reference signal group, CORESET group, Physical Uplink Control Channel (PUCCH) group, PUCCH resource group), resource (e.g., reference signal resource, SRS resource), resource set (e.g., reference signal resource set), CORESET pool, 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 assumption, etc. may be read as interchangeable.

[0086] Furthermore, the spatial relationship information identifier (ID) (TCI state ID) and the spatial relationship information (TCI state) may be interchangeable. The "spatial relationship information" may be interchangeable with "set of spatial relationship information," "one or more pieces of spatial relationship information," etc. The TCI state and the TCI may be interchangeable with each other.

[0087] In the present disclosure, multi-panel simultaneous transmission and multi-panel simultaneous UL transmission may be interchangeable. In the present disclosure, supporting and setting / instructing may be interchangeable. In the present disclosure, loop, power control loop, power control loop index, closed loop, open loop, and power control adjustment state may be interchangeable. In the present disclosure, transmission power and output power may be interchangeable.

[0088] (Wireless Communication Method) <First Embodiment> [Transmission Power Control for PUSCH / PUCCH / SRS] When simultaneous UL transmission from multiple panels is supported, a UE receives a setting related to the transmission power for each panel, controls the transmission power for each panel separately based on the setting, and transmits UL transmissions (PUSCH / PUCCH / SRS) simultaneously (at transmission opportunity i) using multiple panels (e.g., two panels). For the setting, higher layer signaling (e.g., RRC) / physical layer signaling (e.g., a TPC command of DCI) may be used, as in existing transmission power control.

[0089] Note that the transmission power control of this embodiment may be the same as the transmission power control for PUSCH / PUCCH / SRS described above (Transmission power control) insofar as it is not particularly specified.

[0090] When the UE transmits a PUSCH from panel p on active UL BWP b of carrier f of serving cell c using a parameter set with index j and a power control adjustment state index l, the UE determines the transmission power (P ＰＵＳＣＨ、ｂ，ｆ，ｃ，ｐ (i, j, qｄ , l) may be determined based on the following equation (6): where p is an index of the panel, and may be set by higher layer signaling / physical layer signaling.

[0091]

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

[0093] The UE uses the power control adjustment state index l to determine the transmit power (P ＰＵＣＣＨ、ｂ，ｆ，ｃ，ｐ (i, q ｕ , q ｄ , l) may be determined based on the following equation (7):

[0094]

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

[0096] The UE uses the power control adjustment state index l to determine the transmit power (P ＳＲＳ、ｂ，ｆ，ｃ，ｐ (i, q ｓ , l) may be determined based on the following equation (8).

[0097]

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

[0099] The transmission 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). Explanation of similar points will be omitted.

[0100] Note that equations (6) to (8) are merely examples and are not limited to these. The user terminal only needs to control the transmission power of the 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. Furthermore, while equations (6) to (8) above control the transmission power of the PUSCH / PUCCH / SRS for each active UL BWP of a certain carrier of a certain serving cell, this is not limiting. 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 transmission power for PUSCH / PUCCH / SRS for each panel.

[0102] [Maximum Output Power] The maximum output power (maximum transmission power) P of the panel p of the carrier f of the serving cell c included in the formulas (6) to (8) ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ An example of the settings will be explained.

[0103] <Option 0> The UE may receive a configuration (e.g., a configuration similar to that of Rel. 17) regarding the maximum output power for each serving cell and each carrier, and may determine the maximum output power for each panel based on the configuration. For example, the UE may determine that the maximum output power of carrier f of serving cell c is P ＣＭＡＸ，ｆ，ｃ and the maximum output power P ＣＭＡＸ，ｆ，ｃ，ｐ The P ＣＭＡＸ，ｆ，ｃ or PＣＭＡＸ，ｆ，ｃ and P ＣＭＡＸ，ｆ，ｃ，ｐ The P ＣＭＡＸ，ｆ，ｃ , and the relationship may be set in the UE by higher layer signaling / physical layer signaling. In this case, the maximum output power for each panel may be exemplified as follows:

[0104] Option 0-1: The UE determines the maximum output power P of the panel p based on the following equation (9): ＣＭＡＸ，ｆ，ｃ，ｐ where N is the number of panels instructed to transmit simultaneously. That is, the maximum output power of each panel may be the same.

[0105]

[0106] For example, N may be 2 when simultaneous multi-panel transmission is instructed. N may be 1 when single-panel transmission is instructed. Alternatively, N may be determined based on at least one of a value set by the network (base station) through higher layer signaling / physical layer signaling and UE capabilities. Different values ​​may be applied to single-panel transmission and multi-panel transmission. Alternatively, N may be the maximum number of panels supported by the UE in UL transmission (e.g., N=2), and the application of single-panel transmission or simultaneous multi-panel transmission may not be instructed by the network.

[0107] Option 0-2: The UE determines the maximum output power P of the panel p based on the following equation (10): ＣＭＡＸ，ｆ，ｃ，ｐ may be determined. That is, the sum of the maximum output powers of the panels p may be the maximum output power of the UE. Np is a value for the panel p and may be different for each panel. That is, the maximum output power of each panel may be different.

[0108]

[0109] Np may be determined based on at least one of a value set by higher layer signaling / physical layer signaling from the network (base station) and UE capability, and may have different values ​​applied to single-panel transmission and multi-panel transmission.

[0110] Option 0-3: The UE determines the maximum output power P of the panel p based on the following equation (11): ＣＭＡＸ，ｆ，ｃ，ｐ In other words, the maximum output power of the UE may be the sum of the maximum output powers of the panels p. In this case, the maximum output power of each panel may be the same or different, or some panels may have the same maximum output power.

[0111]

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

[0113]

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

[0115]

[0116] Similarly, when Option 0-2 is applied, the UE ＳＲＳ、ｂ，ｆ，ｃ，ｐ (i, q ｓ , l) may be determined based on equation (14).

[0117]

[0118] When option 0-1 is applied, Np in equations (12) to (14) is replaced with N.

[0119] P ＣＭＡＸ，ｆ，ｃ P when determining Ｐｏｗｅｒｃｌａｓｓ , ΔP ＩＢＥ , M.P.R. ｆ,ｃ , A-MPR ｆ,ｃ , ΔMB Ｐ,ｎ, P-MPR ｆ,ｃ , EIRP ｍａｘ , TRP ｍａｘ The requirements may be newly defined when simultaneous UL transmission in multiple panels is applied, i.e., different requirements may be defined for single-panel transmission and simultaneous multi-panel transmission.

[0120] Option 0-4: The UE determines the maximum output power P of the panel p based on the following equation (15): ＣＭＡＸ，ｆ，ｃ，ｐ Alternatively, the maximum transmission power for each panel may be the same as the maximum transmission power for multiple panels.

[0121]

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

[0123] [Option 1] The UE determines the maximum output power P of each panel p with requirements (boundaries) defined based on the peak Effective Isotropic Radiated Power (EIRP) measurements per UE and the total radiated power measurements per UE. ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ may be determined.

[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 carrier f in serving cell c is ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ is the corresponding peak EIRP measurement P UMAX,f,c satisfies equation (4), and the total radiated power measurement P TMAX,f,c But, P TMAX,f,c ≦TRP max It is set so that:

[0125] P UMAX,f,c =Σ p P UMAX,f,c,pThat is, the peak EIRP measurement of carrier f of serving cell c may be calculated as the sum of the peak EIRP measurements of multiple panels. P UMAX,f,c,p is the measured peak EIRP of panel p.

[0126] P TMAX,f,c =Σ p P TMAX,f,c,p That is, 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. P TMAX,f,c,p is the peak total radiated power measurement of panel p.

[0127] P Ｐｏｗｅｒｃｌａｓｓ , ΔP ＩＢＥ , M.P.R. ｆ,ｃ , A-MPR ｆ,ｃ , ΔMB Ｐ,ｎ , P-MPR ｆ,ｃ , EIRP ｍａｘ , TRP ｍａｘ The requirements in this section may be the same as those in Rel. 17 (for single-panel transmission), or these requirements may be newly defined when applying simultaneous UL transmission in multiple panels. That is, different requirements may be defined for single-panel transmission and simultaneous multi-panel transmission.

[0128] This aspect clarifies the maximum output power of panel p, the maximum output power of all panels, and the relationship between them, allowing the UE to control simultaneous UL transmission of multiple panels using appropriate transmission power.

[0129] Power Requirements for Carrier Aggregation (CA) In the case of carrier aggregation (CA), the maximum output power P of each panel p of carrier f in serving cell c is ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ (i) is the corresponding peak EIRP measurement P UMAX satisfies equation (5) and the total radiated power measurement P TMAX But, P TMAX ≦TRP max It is set so that:

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

[0131] P TMAX =Σ c,f(c),p P TMAX,f,c,p That is, the total radiated power measurement may be calculated as the sum of the total radiated power measurements of multiple panels. TMAX,f,c,p is the total radiated power measurement of panel p.

[0132] P Ｐｏｗｅｒｃｌａｓｓ , ΔP ＩＢＥ , M.P.R. ｆ,ｃ , A-MPR ｆ,ｃ , ΔMB Ｐ,ｎ , P-MPR ｆ,ｃ , EIRP ｍａｘ , TRP ｍａｘ The requirements in this section may be the same as those in Rel. 17 (for single-panel transmission), or these requirements may be newly defined when applying simultaneous UL transmission in multiple panels. That is, 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 the UE of each panel ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ and the maximum output power P ＣＭＡＸ，ｆ，ｃ For the and relationship, the following example may apply:

[0134] <<Option 1-0>> There may be no additional specification-defined restrictions on simultaneous UL transmission in multiple panels. As long as the above-mentioned requirements for peak EIRP measurement and total radiated power measurement are met, it may be up to the UE to decide how to set the maximum output power of each panel.

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

[0136]

[0137] N is the number of panels for which simultaneous transmission is instructed, and may be, for example, N=2 when simultaneous multi-panel transmission is instructed, or N=1 when single-panel transmission is instructed. N may be a value set by the network (base station) through higher layer signaling / physical layer signaling and a value depending on at least one of 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 the UE ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ The relationship between the maximum output power P and the power consumption may be predefined or may be different. ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ When the maximum output power of a UE configured for each panel differs from panel to panel, the relationship between the maximum output power of a carrier of a serving cell and the UE-configured maximum output power of each panel may be predefined or may differ for each panel. These relationships may be configured in the UE by higher layer signaling / physical layer signaling. These relationships may be defined, for example, as in Equation (17).

[0139]

[0140] X ｐ＝０，ｐ＝１ 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 carrier of the corresponding serving cell. X ｐ＝０，ｐ＝１ , Np may be a value set by a network (base station) through higher layer signaling / physical layer signaling and a value depending on at least one of UE capabilities. ｐ＝０，ｐ＝１ , Np may have different values ​​for single-panel and multi-panel transmissions.

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

[0142] [Option 2] The UE determines the maximum output power P for each panel p, with requirements (boundaries) defined based on the peak isotropic radiated power (EIRP) measurements per panel and the total radiated power measurements per panel. ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ The maximum output power P of each panel p set in the UE may be determined. ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ is the measured peak EIRP for each corresponding panel, P ＵＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ satisfies the requirement (boundary) of the following equation (18). In this case, the total radiated power P ＴＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ Is, P ＴＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ ≦TRP ＭＡＸ，ｐ Meet the following.

[0143]

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

[0145] Maximum output power P of each panel p ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ may be set / determined differently for different UE types / UE power classes (see, for example, Fig. 4). Note that new UE types / UE power classes (different from those for single-panel UL transmission) may be defined for UEs that perform multi-panel simultaneous UL transmission.

[0146] Option 2 clarifies the per-panel power requirement (limit) when performing simultaneous multi-panel UL transmission, allowing the UE to control the transmission power appropriately.

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

[0148] [Option 1] The UE uses the configured maximum output power P ＣＭＡＸ，ｆ，ｃ The maximum output power of the serving cell configured in the UE may be reported as the maximum multi-panel output power P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ may be the sum of (Equation (19)).

[0149]

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

[0151] [Option 2] The UE will output a maximum power P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ or maximum output power P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ The value of the

[0152] FIG. 5 shows the maximum output power P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ 5 is a diagram showing an example of a PHR MAC CE including: PH in FIG. 5 indicates a 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 FIG. 5 is a single entry, but in the case of multiple entries, multiple P per panel may be used. ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ P in FIG. ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐmay be replaced with any of the values ​​of options 2-1 to 2-5 described below.

[0153] Option 2-1: The UE determines the maximum output power P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ may report the value of

[0154] Option 2-2: The UE determines the maximum output power P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ , and a common value P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ may be reported.

[0155] Option 2-3: The UE determines the maximum output power P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ The maximum value (for example, max ｐ P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ (referred to as "Incomplete Information") may be reported.

[0156] Option 2-4: The UE determines the maximum output power P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ The minimum value (for example, min ｐ P ＣＭＡＸｐａｎｅｌ，ｆ，ｃ，ｐ (referred to as "Incomplete Information") may be reported.

[0157] <Option 2-5> When single panel transmission is indicated, the UE may report the maximum output power of the indicated panel for transmission.

[0158] The UE may use different options from those listed above when instructed to transmit a single panel and when instructed to transmit multiple panels simultaneously.

[0159] The UE may report the values ​​shown in 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 appropriate settings for the transmission power for each panel.

[0161] <Analysis> Rel. 17 considers supporting two power control loops for each serving cell.

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

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

[0164] For SRS, a power control loop index may be associated with the TCI state (if provided), or an indication may be provided per SRS resource set as to whether the SRS closed-loop power control (closed-loop index) is the same as the PUSCH power control loop index 0 or the PUSCH power control loop index 1, or is a separate power control loop from the PUSCH.

[0165] The closed-loop power control of the SRS is ｂ,ｆ,ｃ If the closed-loop power control of the SRS is indicated to be the same as the power control loop index l of the PUSCH, then h ｂ,ｆ,ｃ (i, l) = f ｂ,ｆ,ｃ (i, l). ｂ,ｆ,ｃ (i, l) is included in equation (1) and relates to the closed-loop power control of the PUSCH.

[0166] Here, in single-panel transmission or multi-panel transmission, when the maximum output power of the panels set in the UE is different, there has been insufficient consideration of how the number of power control loops is set, so this will be considered in the following third embodiment.

[0167] Third Embodiment In this embodiment, control will be described for the case where simultaneous multi-panel UL transmission is supported and dynamic switching between single-panel transmission and simultaneous multi-panel transmission is supported. The terms power control loop and power control loop index (l) may be interchangeable. A UE may report the power control loops it supports as UE capabilities, or the power control loops may be configured by higher layer signaling / physical layer signaling.

[0168] Number of Power Control Loops: A UE may support up to N power control loops for a serving cell, where N may be different (greater than) N in Rel. 17 (N=2). For example, a UE may support multiple power control loops, at least one power control loop for single-panel transmission and at least one power control loop for simultaneous multi-panel transmission.

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

[0172] Power Control Loop for PUSCH For PUSCH, the two indices of the power control loop may be associated with the TCI state (if provided) or with the SRI value.

[0173] PUCCH Power Control Loop For PUCCH, the two indices of the power control loop may be associated with the TCI state (if provided) or with the PUCCH spatial relationship.

[0174] [SRS Power Control Loop] For SRS, two indices of the power control loop may be associated with the TCI state (if provided). Alternatively, two indications may be provided per SRS resource set regarding whether the SRS closed-loop power control (closed-loop index) is the same as the PUSCH power control loop index 0 or PUSCH index 1, or whether it is a separate power control loop from the PUSCH. One indication may be sent for single-panel transmission, and another indication may be used for simultaneous multi-panel transmission. The other indication may be sent for one panel (e.g., panel #1 or #2) of the multi-panel transmission.

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

[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 a single field (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 power control loops are clarified, and the UE can appropriately perform power control using the power control loops.

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

[0179]

[0180] When used for PUSCH with UL-SCH data, the bits per resource element (BPRE) in equation (20) is expressed as in equation (21).

[0181]

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

[0183]

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

[0185]

[0186] In equation (20), if the PUSCH includes UL-SCH data, β ｏｆｆｓｅｔ ＰＵＳＣＨ = 1, and the PUSCH does not contain UL-SCH data but does contain CSI, then β ｏｆｆｓｅｔ ＰＵＳＣＨ = β ｏｆｆｓｅｔ ＣＳＩ，１ is.

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

[0189]

[0190] N ｓｙｍｂ ＰＵＣＣＨ (i) is the number of symbols of PUCCH format 0 or 1 in PUCCH transmission. For PUCCH format 0, N ｒｅｆ ＰＵＣＣＨ = 2, and for PUCCH format 1, N ｒｅｆ ＰＵＣＣＨ = N ｓｙｍｂ ｓｌｏｔ In addition, in the case of PUCCH format 0, Δ ＵＣＩ (i)=0 and for PUCCH format 1, Δ ＵＣＩ (i) = 10 log １０ (O ＵＣＩ (i)). 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 PUCCH transmission uses PUCCH format 2, 3, or 4 and the number of UCI bits is 11 or less.

[0192]

[0193] In formula (25), K １ = 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 in equation (26) when PUCCH transmission uses PUCCH format 2, 3, or 4 and the number of UCI bits is greater than 11. In equation (26), K ２ = 2.4.

[0195]

[0196] BPRE(i) is expressed as in equation (27). ＡＣＫ (i) indicates 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. ＣＲＣ (i) is the number of CRC information bits determined by the UE. ＲＥ (i) is the number of resource elements.

[0197]

[0198] <Δ for PUCCH Ｆ＿ＰＵＣＣＨ，ｐ (F) > Δ Ｆ＿ＰＵＣＣＨ，ｐ (F) is determined based on the RRC parameters. Ｆ＿ＰＵＣＣＨ，ｐ (F) 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, and deltaF-PUCCH-f4 for PUCCH format 4, if provided. If these parameters are not provided, Δ Ｆ＿ＰＵＣＣＨ，ｐ (F)=0.

[0199] Fourth Embodiment The parameters (for example, P Ｏ＿ＰＵＳＣＨ，ｂ，ｆ，ｃ (j), α ｂ，ｆ，ｃ (j), PUSCH power control adjustment state index l, path loss reference RS index q ｄ At least one of the above may be associated with a Transmission Configuration Indication (TCI) state of the PUSCH or an SRI (an indicator of an SRS resource corresponding to the PUSCH or spatial relationship information corresponding to the PUSCH) of the PUSCH.

[0200] The parameter (for example, P Ｏ＿ＰＵＣＣＨ，ｂ，ｆ，ｃ (q ｕ ), PUCCH power control adjustment state index l, path loss reference RS index q ｄ ) may be associated with the TCI state of the PUCCH or the spatial relationship information of the PUCCH.

[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 ) is associated with the TCI state of the SRS, and at least one of the SRS resource sets q Ｓ At least one of these parameters may be similar to 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 PUSCH / PUCCH / SRS bandwidth associated with panel p, 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 transmission code blocks, the code block size, and the number of resource elements of the PUSCH transmission associated with panel p.

[0204] In equation (7), Δ of panel p Ｆ＿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 for PUCCH transmission associated with panel p.

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

[0206] <Linear Value of Transmission Power> For codebook PUSCHs other than the PUSCH scheduled by DCI0_0, the linear value P － ＰＵＳＣＨ , ｂ，ｆ，ｃ (i, j, q ｄ , l) is scaled by a factor s, which varies depending on the full power transmission mode, the number of antenna ports, and the number of SRS ports. － denotes a variable with a line over P, which may also be referred to as P. The UE divides the power equally among the antenna ports from which the UE transmits PUSCH with non-zero power.

[0207] For PUSCH transmission on active UL BWP b, carrier f, and serving cell c, the UE first selects the transmit power P ＰＵＳＣＨ , ｂ，ｆ，ｃ (i, j, q ｄ , l) linear value P － ＰＵＳＣＨ , ｂ，ｆ，ｃ (i, j, q ｄ , l) is calculated. In the case of a PUSCH transmission scheduled in a DCI format other than DCI format 0_0, or a transmission configured in ConfiguredGrantConfig or semiPersistentOnPUSCH, the case where txConfig in PUSCH-Config is set to "codebook" will be described.

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

[0209] When ul-FullPowerTransmission in PUSCH-Config is set to fullpowerMode1 and each SRS resource in SRS-ResourceSet whose usage is set to "codebook" has multiple SRS ports, s is the ratio of the non-zero PUSCH transmission power and the number of antenna ports to the maximum number of SRS ports that the UE supports in one SRS resource.

[0210] When ul-FullPowerTransmission of PUSCH-Config is set to fullpowerMode2, the following (1) and (2) are applied.

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

[0212] (2) If multiple SRS resources are provided in an SRS-ResourceSet whose use is set to "codebook", or if indicated by a Type 1 configuration grant, or if only an SRS resource with a single port is provided in an SRS-ResourceSet whose use is set to "codebook", if an SRS resource with a single port is indicated in the SRI field of the DCI format that schedules a PUSH transmission, s = 1.

[0213] If ul-FullPowerTransmission in PUSCH-Config is set to full power, s=1.

[0214] If ul-FullPowerTransmission in the PUSCH-Config is not provided and each SRS resource in the SRS-ResourceSet whose usage is set to "codebook" has multiple SRS ports, the UE calculates the linear value P by the ratio of the number of antenna ports whose PUSCH transmission power is not zero to the maximum number of SRS ports supported by the UE in one SRS resource. － ＰＵＳＣＨ , ｂ，ｆ，ｃ (i, j, q ｄ , l) are scaled.

[0215] The UE may divide the power evenly among the antenna ports from which the UE transmits PUSCH with non-zero power.

[0216] Even if 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 is 25% of the original power consumption. For this reason, full power enhancement is supported in Rel. 16.

[0217] Fifth Embodiment [Setting of Coefficient s] The UE determines the PUSCH transmission power of each panel by the method of each of the above embodiments. The UE scales the PUSCH transmission power by coefficient s. The full power transmission mode (fullpowerMode1, fullpowerMode2, fullpower) may be set for each panel.

[0218] When fullpowerMode1 is set in a panel, the coefficient s is the ratio of the number of antenna ports corresponding to non-zero power PUSCH transmissions associated with the panel to the maximum number of SRS ports supported by the panel in one SRS resource.

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

[0220] If full power is configured for a panel, s = 1. For a panel that is not configured for full power mode, s is the ratio of the number of antenna ports corresponding to non-zero power PUSCH transmissions associated with the panel to the maximum number of SRS ports supported by the panel on one SRS resource. The UE divides the panel's power equally among the antenna ports associated with the panel that transmit PUSCH at non-zero power.

[0221] [Transmission Power Allocation] When the transmission power is calculated for each UE (Option 1 of the first embodiment), the transmission (output) power (maximum transmission (output) power) may be allocated equally to each transmission antenna port / transmission panel (FIG. 6A). Alternatively, when the transmission power is calculated for each UE, the transmission power (maximum transmission power) may be allocated differently to 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 higher layer signaling / physical layer signaling, or may be set / determined according to the reported UE capabilities.

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

[0223] According to this embodiment, the UE can appropriately distribute output power to multiple panels.

[0224] <Others> When dynamic switching between single-panel transmission and reception and simultaneous multi-panel transmission and reception is supported and 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 indicating whether it supports at least one of the examples in the present disclosure to a network (base station). Furthermore, the UE may receive an instruction / configuration (e.g., an instruction / configuration regarding enable / disable) regarding at least one of the examples in the present disclosure via higher layer signaling / physical layer signaling. The instruction / configuration may correspond to the UE capability information transmitted by the UE. At least one of the examples in the present disclosure may be applied only to a UE that has received the instruction / configuration, a UE that has transmitted the corresponding UE capability information, or a UE that supports the corresponding UE capability. The UE capability information may be, for example, at least one of the following (1) to (8):

[0226] (1) Whether per-panel power control is supported. (2) The number of power control loops (power control loop indexes) supported. (3) The total number of single-panel transmissions and simultaneous multi-panel transmissions supported. (4) The number of single-panel transmissions supported. (5) The number of simultaneous multi-panel transmissions supported. (6) Whether full / partial / non-overlapping PUSCH resource allocation is supported. (7) Whether full power transmission mode for each panel is supported. (8) For fullpowerMode2, whether full power TPMI is supported for each panel.

[0227] (Supplementary Notes) The following inventions are supplemented with respect to one embodiment of the present disclosure. [Supplementary Note 1] A terminal having: a receiving unit that receives a setting related to transmission power for each panel when simultaneous uplink (UL) transmission from multiple panels is supported; and a control unit that controls the UL transmission power for each panel based on the setting. [Supplementary Note 2] The terminal according to Supplementary Note 1, in which the receiving unit receives a setting related to maximum output power for each serving cell and each carrier, and the control unit determines the maximum output power for each panel based on the setting related to maximum output power. [Supplementary Note 3] The terminal according to Supplementary Note 1 or Supplementary Note 2, in which the control unit determines the maximum output power for each panel using requirements defined based on peak conducted isotropic radiated power (EIRP) measurements for each terminal and total radiated power measurements for each terminal. [Supplementary Note 4] The terminal according to any one of Supplements 1 to 3, in which the control unit determines the maximum output power for each panel using requirements defined based on peak conducted isotropic radiated power (EIRP) measurements for each panel and total radiated power measurements for each panel.

[0228] (Supplementary Notes) The following inventions are supplementary notes regarding one embodiment of the present disclosure. [Supplementary Note 1] A terminal having: a transmitter that, when simultaneous uplink (UL) transmission from multiple panels is supported, transmits information indicating a maximum output power for each panel using a Power Headroom Report Medium Access Control Element (PHR MAC CE); and a controller that controls the simultaneous UL transmission based on the maximum output power. [Supplementary Note 2] The terminal according to Supplementary Note 1, wherein, when dynamic switching between single-panel reception and simultaneous multi-panel reception is supported, the controller supports at least one power control loop for single-panel transmission and at least one power control loop for simultaneous multi-panel transmission. [Supplementary Note 3] The terminal according to Supplementary Note 1 or Supplementary Note 2, wherein at least one of parameters used for physical uplink shared channel (PUSCH) power control is associated with a transmission configuration indication (TCI) state or a sounding reference signal resource indicator (SRI) of the PUSCH, at least one of parameters used for physical uplink control channel (PUCCH) power control is associated with a TCI state or spatial relationship information of the PUCCH, and at least one of parameters used for measurement reference signal (SRS) power control is associated with a TCI state of the SRS. [Supplementary Note 4] The terminal according to any of Supplementary Note 1 to Supplementary Note 3, wherein output power is distributed equally to each transmit antenna port or each panel.

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

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

[0231] The wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), etc.

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

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

[0234] The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) that are located within the macrocell C1 and form small cells C2 that are smaller than the macrocell C1. A user terminal 20 may be located within at least one of the cells. The locations and numbers of the cells and user terminals 20 are not limited to the embodiment shown in the figure. Hereinafter, when there is no need to distinguish between the base stations 11 and 12, they will be collectively referred to as base station 10.

[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 (CCs) and dual connectivity (DC).

[0236] Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may be included in FR1, and the small cell C2 may be included in FR2. For example, FR1 may be a frequency band of 6 GHz or less (sub-6 GHz), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a higher frequency band than FR2.

[0237] Furthermore, the user terminal 20 may perform communication using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.

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

[0239] The base station 10 may be connected to the core network 30 directly or via another base station 10. The core network 30 may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), and the like.

[0240] The user terminal 20 may be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.

[0241] An Orthogonal Frequency Division Multiplexing (OFDM)-based radio access scheme may be used in the wireless communication system 1. For example, Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), or the like may be used in at least one of the downlink (DL) and uplink (UL).

[0242] The radio access scheme may also be called a waveform. Note that in the wireless communication system 1, other radio access schemes (e.g., other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the UL and DL radio access schemes.

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

[0244] Furthermore, in the wireless communication system 1, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20, an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), or the like may be used as an uplink channel.

[0245] The PDSCH transmits user data, higher layer control information, a System Information Block (SIB), etc. The PUSCH may transmit user data, higher layer control information, etc. Furthermore, the PBCH may transmit a Master Information Block (MIB).

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

[0247] Note that the DCI for scheduling the PDSCH may be referred to as a DL assignment, a DL DCI, etc., and the DCI for scheduling the PUSCH may be referred to as a UL grant, a UL DCI, etc. Note that the PDSCH may be replaced with DL data, and the PUSCH may be replaced with UL data.

[0248] A control resource set (CORESET) and a search space may be used to detect the PDCCH. The CORESET corresponds to resources for searching for DCI. The search space corresponds to a search region and a search method for PDCCH candidates. One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a certain search space based on the search space configuration.

[0249] One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces may be referred to as a search space set. Note that the terms "search space," "search space set," "search space configuration," "search space set configuration," "CORESET," "CORESET configuration," and the like in the present disclosure may be read interchangeably.

[0250] The PUCCH may transmit uplink control information (UCI) including at least one of channel state information (CSI), delivery confirmation information (which may be called, for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR). The PRACH may transmit a random access preamble for establishing a connection with a cell.

[0251] In the present disclosure, downlink, uplink, etc. may be expressed without adding "link." Also, various channels may be expressed without adding "Physical" to the beginning.

[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 the DL-RS, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), etc. may be transmitted.

[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 an SS (PSS, SSS) and a PBCH (and a DMRS for the PBCH) may be referred to as an SS / PBCH block, an SS Block (SSB), or the like. Note that the SS, SSB, and the like may also be referred to as a reference signal.

[0254] Furthermore, in the wireless communication system 1, a sounding reference signal (SRS), a demodulation reference signal (DMRS), or the like may be transmitted as an uplink reference signal (UL-RS). Note that the DMRS may also be called a user equipment-specific reference signal (UE-specific reference signal).

[0255] (Base Station) Fig. 8 is a diagram showing an example of the configuration of a base station according to an embodiment. The base station 10 includes a control unit 110, a transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140. Note that the base station may include one or more of each of the control unit 110, the transceiver unit 120, the transceiver antenna 130, and the transmission line interface 140.

[0256] In this example, the functional blocks of the characteristic parts of the present embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0257] The control unit 110 performs overall control of the base station 10. The control unit 110 can be configured from a controller, a control circuit, and the like that are explained based on common understanding in the technical field to which the present disclosure relates.

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

[0259] The transceiver unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transceiver unit 120 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0260] The transmitting / receiving unit 120 may be configured as an integrated transmitting / receiving unit, or may be configured from a transmitting unit and a receiving unit. The transmitting unit may be configured from a transmission processing unit 1211 and an RF unit 122. The receiving unit may be configured from a reception processing unit 1212, the RF unit 122, and a measurement unit 123.

[0261] The transmitting and receiving antenna 130 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure relates, such as an array antenna.

[0262] The transceiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 120 may receive the above-mentioned uplink channel, uplink reference signal, etc.

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

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

[0265] The transmitter / receiver 120 (transmission processing unit 1211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0266] The transceiver unit 120 (RF unit 122) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 130.

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

[0269] The transceiver 120 (measurement unit 123) may perform measurements on the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may measure received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 110.

[0270] The transmission path interface 140 may transmit and receive signals (backhaul signaling) between 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] The transmitting section and receiving section of the base station 10 in the present disclosure may be configured by at least one of the transmitting / receiving section 120, the transmitting / receiving antenna 130, and the transmission path interface 140.

[0272] When simultaneous uplink (UL) transmission from multiple panels is supported, the transceiver 120 may transmit a setting related to the transmission power for each panel. The control unit 110 may control the UL transmission power of the terminal for each panel based on the setting, and may control reception of UL signals using the UL transmission power.

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

[0274] (User Terminal) Fig. 9 is a diagram showing an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transceiver unit 220, and a transceiver antenna 230. Note that the user terminal 20 may include one or more of each of the control unit 210, the transceiver unit 220, and the transceiver antenna 230.

[0275] In this example, the functional blocks of the characteristic parts of the present embodiment are mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0276] The control unit 210 performs overall control of the user terminal 20. The control unit 210 can be configured from a controller, a control circuit, etc., which are described based on common understanding in the technical field to which the present disclosure relates.

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

[0278] The transceiver unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transceiver unit 220 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

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

[0280] The transmitting / receiving antenna 230 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure relates, such as an array antenna.

[0281] The transceiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, etc.

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

[0283] The transceiver unit 220 (transmission processing unit 2211) may perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 210, and generate a bit string to be transmitted.

[0284] The transmitter / receiver unit 220 (transmission processing unit 2211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0285] Whether or not to apply DFT processing may be based on the setting of transform precoding. When transform precoding is enabled for a certain channel (e.g., PUSCH), the transceiver unit 220 (transmission processing unit 2211) may perform DFT processing as the transmission processing to transmit the channel using a DFT-s-OFDM waveform, and if not, it may not be necessary to perform DFT processing as the transmission processing.

[0286] The transceiver unit 220 (RF unit 222) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 230.

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

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

[0289] The transceiver 220 (measurement unit 223) may perform measurements on the received signal. For example, the measurement unit 223 may perform RRM measurements, CSI measurements, etc. based on the received signal. The measurement unit 223 may measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

[0290] The transmitting unit and receiving unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmitting / receiving unit 220 and the transmitting / receiving antenna 230.

[0291] If simultaneous uplink (UL) transmission from multiple panels is supported, the transceiver 220 may receive settings related to the transmission power for each panel, and the control unit 210 may control the UL transmission power for each panel based on the settings.

[0292] The transceiver 220 may receive a setting related to the maximum output power for each serving cell and each carrier. The controller 210 may determine the maximum output power for each panel based on the setting related to the maximum output power.

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

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

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

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

[0297] At least one of the parameters used for physical uplink shared channel (PUSCH) power control may be associated with a transmission configuration indication (TCI) state or a 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 a TCI state or spatial relationship information of the PUCCH, and at least one of the parameters used for measurement reference signal (SRS) power control may be associated with a TCI state of the SRS. Output power may be equally distributed to each transmit antenna port or each panel.

[0298] (Hardware Configuration) Note that the block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wires, wirelessly, etc.) and these multiple devices. The functional block may be realized by combining software with the single device or the multiple devices.

[0299] Here, the functions include, but are not limited to, judgment, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, deeming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission may be called a transmitting unit, transmitter, etc. As described above, the implementation method of each is not particularly limited.

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

[0301] In the present disclosure, the terms apparatus, circuit, device, section, unit, etc. may be used interchangeably. The hardware configurations of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the drawings, or may be configured to exclude some of the devices.

[0302] For example, although only one processor 1001 is shown, there may be multiple processors. Furthermore, processing may be performed by one processor, or processing may be performed by two or more processors simultaneously, serially, or in other ways. Furthermore, processor 1001 may be implemented by one or more chips.

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

[0304] The processor 1001, for example, runs an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, at least a part of the above-mentioned control unit 110 (210), transceiver unit 120 (220), etc. may be realized by the processor 1001.

[0305] The processor 1001 also reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and the other functional blocks may be implemented in a similar manner.

[0306] The memory 1002 is a computer-readable recording medium and may be configured by at least one of, for example, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EEPROM (EEPROM), Random Access Memory (RAM), or other suitable storage medium. The memory 1002 may also be referred to as a register, cache, main memory, etc. The memory 1002 may store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.

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

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

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

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

[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), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized using this hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0312] (Modifications) Note that terms described in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may be interchangeable. A signal may also be a message. A reference signal may be abbreviated as RS, and may also be called a pilot, pilot signal, etc. depending on the applicable standard. A component carrier (CC) may also be called a cell, frequency carrier, carrier frequency, etc.

[0313] A radio frame may be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting a radio frame may be called a subframe. Furthermore, a subframe may be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0314] Here, the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel, and may indicate at least one of, for example, Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering performed by a transceiver in the frequency domain, and specific windowing performed by a transceiver in the time domain.

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

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

[0317] A radio frame, a subframe, a slot, a minislot, and a symbol all represent time units for transmitting signals. The radio frame, the subframe, the slot, the minislot, and the symbol may be referred to by other names corresponding to the radio frame, the subframe, the slot, the minislot, and the symbol. Note that the time units such as a frame, a subframe, a slot, a minislot, and a symbol in the present disclosure may be interchangeable.

[0318] For example, one subframe may be referred to as a TTI, or multiple consecutive subframes may be referred to as a TTI, or one slot or one minislot may be referred to as a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0319] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. Note that the definition of TTI is not limited to this.

[0320] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0321] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

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

[0323] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and greater than or equal to 1 ms.

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

[0325] In addition, an RB may include one or more symbols in the time domain and may have a length of one slot, one minislot, one subframe, or one TTI, each of which may be composed of one or more resource blocks.

[0326] In addition, one or more RBs may be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

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

[0328] A Bandwidth Part (BWP), which may also be referred to as a partial bandwidth, may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a Common Reference Point of the carrier. PRBs may be defined in a BWP and numbered within the BWP.

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

[0330] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0331] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc. may be changed in various ways.

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

[0333] The names used for parameters and the like in this disclosure are not intended to be limiting in any way. Furthermore, the mathematical expressions and the like using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

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

[0335] Furthermore, information, signals, etc. may be output from a higher layer to a lower layer and / or from a lower layer to a higher layer. Information, signals, etc. may be input / output via multiple network nodes.

[0336] Input and output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input and output information, signals, etc. may be overwritten, updated, or added. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to another device.

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

[0338] Note that the physical layer signaling may be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. Furthermore, the RRC signaling may be referred to as an RRC message, such as an RRC Connection Setup message or an RRC Connection Reconfiguration message. Furthermore, the MAC signaling may be notified using, for example, a MAC Control Element (CE).

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

[0340] The determination may be made by a value represented by one bit (0 or 1), by a Boolean value represented by true or false, or by a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0341] Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0342] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), these wired and / or wireless technologies are included within the definition of transmission media.

[0343] As used in this disclosure, the terms "system" and "network" may be used interchangeably. A "network" may refer to devices included in the network (e.g., base stations).

[0344] In the present disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "Quasi-Co-Location (QCL)," "Transmission Configuration Indication state (TCI state)," "spatial relation," "spatial domain filter," "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," "panel," etc. may be used interchangeably.

[0345] In the present disclosure, terms such as "base station (BS)," "radio base station," "fixed station," "NodeB," "eNB (eNodeB)," "gNB (gNodeB)," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "cell," "sector," "cell group," "carrier," "component carrier," etc. may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, picocell, etc.

[0346] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be partitioned into multiple smaller areas, and each smaller area can be provided with communication service by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The terms "cell" or "sector" refer to part or all of the coverage area of ​​a base station and / or base station subsystem that provides communication service within that coverage.

[0347] In the present disclosure, a base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control / operate based on the information.

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

[0349] A mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[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. Note that at least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.

[0351] The mobile body is a movable object that can move at any speed and naturally includes cases where the mobile body is stationary. Examples of the mobile body include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones, multicopters, quadcopters, balloons, and objects mounted thereon. The mobile body may also be a mobile body that moves autonomously based on an operation command.

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

[0353] 11 is a diagram showing an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, an electronic control unit 49, various sensors (including a current sensor 50, an RPM sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0354] The drive unit 41 is configured with at least one of an engine, a motor, and a hybrid of an engine and a motor, for example. The steering unit 42 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by a user.

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

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

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

[0358] The information service unit 59 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0359] The driving assistance system unit 64 includes various devices for providing functions to prevent accidents and reduce the driver's driving burden, such as millimeter-wave radar, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyro systems (e.g., Inertial Measurement Units (IMUs), Inertial Navigation Systems (INSs)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driving assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driving assistance functions or autonomous driving functions.

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

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

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

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

[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, axles 48, various sensors 50-58, and the like provided in the vehicle 40.

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

[0366] Similarly, the user terminal in the present disclosure may be read as a base station, in which case the base station 10 may be configured to have the functions of the user terminal 20 described above.

[0367] In the present disclosure, an operation described as being performed by a base station may be performed by its upper node in some cases. It is apparent that in a network including one or more network nodes having a base station, various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (such as, but not limited to, a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc.), or a combination thereof.

[0368] Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Furthermore, the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0369] Each aspect / embodiment described in the present disclosure may be a technology other than Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or decimal number)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (Wi-Fi (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (Wi-Fi (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), IEEE 802. The present invention may be applied to systems that use IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other suitable wireless communication methods, or to next-generation systems that are expanded, modified, created, or defined based on these. Furthermore, the present invention may be applied to a combination of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

[0370] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0371] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0372] The term "determining" as used in this disclosure may encompass a wide variety of actions. For example, "determining" may be considered to be judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry (e.g., looking up in a table, database, or another data structure), ascertaining, etc.

[0373] Additionally, "determining" may be considered to be "determining" receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), etc.

[0374] Also, "determination" may be considered to be "deciding" resolving, selecting, choosing, establishing, comparing, etc. In other words, "determination" may be considered to be "deciding" some action.

[0375] Furthermore, "judgment (decision)" may be read as "assuming," "expecting," "considering," or the like.

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

[0377] As used in this disclosure, the terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access."

[0378] In this disclosure, when two elements are connected, they may be considered to be "connected" or "coupled" to one another using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy having wavelengths in the radio frequency range, microwave range, light (both visible and invisible) range, etc., as some non-limiting and non-exhaustive examples.

[0379] In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0380] When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

[0381] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0382] Although the invention according to the present disclosure has been described in detail above, it is clear to those skilled in the art that the invention according to the present disclosure is not limited to the embodiments described in the present disclosure. The invention according to the present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined by the description of the claims. Therefore, the description of the present disclosure is intended to be illustrative and explanatory and does not impose any limiting meaning on the invention according to the present disclosure.

Claims

1. A transmitter that transmits information indicating the maximum output power for each Transmission Configuration Indication state (TCI state) using a Power Headroom Report Medium Access Control Control Element (PHR MAC CE) when simultaneous uplink (UL) transmission from multiple panels is supported; a control unit that controls UL transmission power for each TCI state based on the maximum output power for each TCI state, The measured peak effective isotropic radiated power (EIRP) corresponding to the maximum output power meets the requirements defined using the power management maximum power reduction (P-MPR) for each TCI state. Terminal.

2. If simultaneous uplink (UL) transmission from multiple panels is supported, transmitting information indicating the maximum output power for each Transmission Configuration Indication state (TCI state) using a Power Headroom Report Medium Access Control Control Element (PHR MAC CE); and controlling UL transmission power for each TCI state based on the maximum output power for each TCI state; The measured peak effective isotropic radiated power (EIRP) corresponding to the maximum output power meets the requirements defined using the power management maximum power reduction (P-MPR) for each TCI state. The device's wireless communication method.

3. A receiver that receives information indicating the maximum output power for each Transmission Configuration Indication state (TCI state) using a Power Headroom Report Medium Access Control Control Element (PHR MAC CE) when simultaneous uplink (UL) transmission from multiple panels is supported; a control unit that controls reception of the UL simultaneous transmission based on the maximum output power, The measured peak effective isotropic radiated power (EIRP) corresponding to the maximum output power meets the requirements defined using the power management maximum power reduction (P-MPR) for each TCI state. Base station.

4. A system including a terminal and a base station, The terminal A transmitter that transmits information indicating the maximum output power for each Transmission Configuration Indication state (TCI state) using a Power Headroom Report Medium Access Control Control Element (PHR MAC CE) when simultaneous uplink (UL) transmission from multiple panels is supported; a control unit that controls UL transmission power for each TCI state based on the maximum output power for each TCI state, a measured peak effective isotropic radiated power (EIRP) corresponding to said maximum output power meets requirements defined using a power management maximum power reduction (P-MPR) per TCI state; The base station a control unit that controls reception of the UL simultaneous transmission based on the maximum output power; system.