Terminal, wireless communication method, and base station

Abstract

A terminal according to one embodiment of the present disclosure is provided with: a transmission unit that transmits a report including one or more pieces of state information pertaining to the use of output power higher than nominal maximum output power corresponding to a band; and a control unit that controls uplink transmission using the output power when the state information indicates that the use is possible. According to one mode of the present disclosure, the coverage range of UL transmission can be improved.

Description

Technical Field

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

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

[0003] The subsequent systems of LTE (for example, also called fifth generation mobile communication system (5G), 5G+(plus), sixth generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 and later, etc.) are also being studied.

[0004] Prior art literature

[0005] Non-patent literature

[0006] Non-patent document 1: 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)”, April 2010 Summary of the invention

[0007] Problems to be solved by the invention

[0008] In future wireless communication systems (eg, NR), research is underway to improve coverage.

[0009] However, there is still uncertainty regarding uplink (UL) transmission using a higher transmission power than the nominal maximum output power. If sufficient research is not conducted on UL transmission using a higher transmission power, there is a concern that it may lead to reduced coverage, reduced communication quality, reduced throughput, etc.

[0010] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station for improving the coverage of UL transmission.

[0011] Means for solving problems

[0012] A terminal according to one embodiment of the present disclosure includes: a sending unit that sends a report including one or more status information regarding the use of an output power higher than a nominal maximum output power corresponding to a band; and a control unit that controls uplink transmission using the output power when the status information indicates that the use can be performed.

[0013] Effects of the Invention

[0014] According to one aspect of the present disclosure, the coverage of UL transmission can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An example showing the relationship between UE power class and nominal maximum output power.

[0016] Figure 2 An example of limiting the NR transmission power in EN-DC.

[0017] Figure 3A as well as Figure 3B This shows an example of the total maximum output power.

[0018] Figure 4 It shows an example of a single-entry PHR MAC CE in Rel.15 / 16NR.

[0019] Figure 5 It shows an example of multiple entry PHR MAC CE in Rel.15 / 16NR.

[0020] Figure 6 An example of mapping between pH value and measured value is shown.

[0021] Figure 7 An example of mapping between the P_CMAX value and the value of the measured quantity is shown.

[0022] Figure 8 An example of mapping between the reported value of FR2 P-MPR and the value of the measured quantity is shown.

[0023] Fig. 9 This diagram shows an example of simultaneous transmission in multiple cells of CA / DC.

[0024] Fig.10 An example of a report showing status information.

[0025] Fig.11 An example showing reporting in multiple cells and simultaneous transmission.

[0026] Fig.12 An example of a single-entry PHR MAC CE involving reporting method 3 is shown.

[0027] Fig.13 An example of a multi-entry PHR MAC CE involving reporting method 3 is shown.

[0028] Fig.14 Another example of a multi-entry PHR MAC CE reporting method 3 is shown.

[0029] Fig.15 An example of the enhanced single-entry PHR MAC CE involved in reporting method 3 is shown.

[0030] Fig.16 Another example of the enhanced single-entry PHR MAC CE involved in reporting method 3 is shown.

[0031] Fig.17 This is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.

[0032] Fig.18 This is a diagram showing an example of the configuration of a base station according to an embodiment.

[0033] Fig.19 This is a diagram showing an example of a configuration of a user terminal according to an embodiment.

[0034] Fig. 20 This is a diagram showing an example of the hardware configuration of a base station and a user terminal involved in one embodiment.

[0035] Fig.21 This is a diagram showing an example of a vehicle according to an embodiment. DETAILED DESCRIPTION

[0036] (PUSCH Transmit Power Control)

[0037] In NR, the transmission power of PUSCH is controlled based on the TPC command (also called value, increase or decrease value, correction value, etc.) represented by the value of a field (also called TPC command field, etc.) in DCI.

[0038] For example, when the UE uses a parameter set (open loop parameter set) with index j and a power control adjustment state (PUSCH power control adjustment state) with index l to transmit PUSCH on an activated UL BWP b of a carrier f of a serving cell c, the transmission power (P) of the PUSCH in a PUSCH transmission opportunity (transmission occasion) (also called a transmission period, etc.) i is PUSCH,b,f,c (i,j,q d ,l))[dBm] can also be expressed as follows based on P CMAX,f,c(i) , P O_PUSCH,b,f,c (j), M PUSCH RB,b,f,c (i) α b,f,c (j), PL b,f,c (q d ), Δ TF,b,f,c (i) f b,f,c At least one of (i,l).

[0039]

[0040] The power control adjustment state may also be referred to as a closed loop (CL)-power control (PC) state, a value of a TPC command based on a power control adjustment state index l, an accumulated value of a TPC command, or a value based on a closed loop. l may also be referred to as a closed loop index.

[0041] Furthermore, a PUSCH transmission opportunity i is a period during which a PUSCH is transmitted and may be composed of, for example, one or more symbols, one or more time slots, and the like.

[0042] P CMAX,f,c (i) For example, the maximum transmission power of the user terminal configured for carrier f of serving cell c in transmission opportunity i (configured maximum output power, UE-configured maximum output power).

[0043] P O_PUSCH,b,f,c (j) For example, a parameter related to the target received power set for the activated UL BWP b of the carrier f of the serving cell c in the transmission opportunity i (for example, also referred to as a parameter related to the transmission power offset, the transmission power offset P0, the target received power parameter, etc.). O_UE_PUSCH,b,f,c (j) can also be P O_NOMINAL_PUSCH,f,c (j) and P O_UE_PUSCH,b,f,c (j) Total.

[0044] M PUSCH RB,b,f,c (i) is, for example, the number of resource blocks (bandwidth) allocated to the PUSCH for transmission opportunity i in the activated UL BWP b of carrier f with serving cell c and subcarrier spacing μ. b,f,c (j) is a value provided by a higher layer parameter (for example, also called msg3-Alpha, p0-PUSCH-Alpha, fractional factor, etc.).

[0045] PL b,f,c (q d ) is, for example, an index q of a reference signal (reference signal (RS), path loss reference RS, path loss (PL)-RS, path loss reference RS, path loss measurement DL-RS, PUSCH-PathlossReferenceRS) for a downlink BWP associated with an activated UL BWP b of a carrier f of a serving cell c used in a user terminal d to calculate the path loss (path loss estimation [dB], path loss compensation).

[0046] In the case where the UE is not provided with a path loss reference RS (e.g., PUSCH-PathlossReferenceRS), or the UE is not provided with dedicated higher layer parameters, the UE may also calculate the PL using RS resources from the synchronization signal (SS) / physical broadcast channel (PBCH) block (SS block (SSB)) used to obtain the master information block (MIB) b,f,c (q d ).

[0047] In the case where the UE is configured with the number of RS resource indices up to the value of the maximum number of path loss reference RSs (e.g., maxNrofPUSCH-PathlossReferenceRSs) and the set of RS configurations for RS resource indices is configured by the path loss reference RS, the set of RS resource indices may also include one or both of the set of SS / PBCH block indices and the set of channel state information (CSI)-reference signal (RS) resource indices. The UE may also identify the RS resource index q in the set of RS resource indices. d .

[0048] In the case where a PUSCH transmission is scheduled by a Random Access Response (RAR) UL grant, the UE may also use the same RS resource index q as that used for the corresponding PRACH transmission. d .

[0049] When the UE is provided with a configuration for power control of a PUSCH based on a sounding reference signal (SRS) resource indicator (SRI) (e.g., SRI-PUSCH-PowerControl) and provided with one or more values ​​of the ID of a path loss reference RS, a mapping between a set of values ​​of the SRI field in DCI format 0_1 ​​and a set of ID values ​​of the path loss reference RS may also be obtained through higher layer signaling (e.g., sri-PUSCH-PowerControl-Id in SRI-PUSCH-PowerControl). The UE may also determine the RS resource index q based on the ID of the path loss reference RS mapped to the SRI field value in DCI format 0_1 ​​for scheduling the PUSCH. d .

[0050] When 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 activated UL BWP b for each carrier f and serving cell c, the UE may also use the same RS resource index q as the PUCCH transmission within the PUCCH resource d .

[0051] In the case where PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with a spatial setting for PUCCH transmission, or in the case where PUSCH transmission is scheduled by DCI format 0_1 ​​without including an SRI field, or in the case where the setting for power control of the SRI-based PUSCH is not provided to the UE, the UE may also use the RS resource index q with ID zero of the path loss reference RS. d .

[0052] In the case where the configured grant configuration includes a specific parameter (e.g., rrc-ConfiguredUplinkGrant) for a PUSCH transmission configured by configuring a grant configuration (e.g., ConfiguredGrantConfig), the RS resource index q may also be provided to the UE by a path loss reference index (e.g., pathlossReferenceIndex) within the specific parameter.d .

[0053] In the case where the setting permission configuration does not include specific parameters for PUSCH transmission configured by setting the permission configuration, the UE may also determine the RS resource index q based on the value of the path loss reference RS ID mapped to the SRI field in the DCI format used to activate PUSCH transmission. d In the case where the DCI format does not contain the SRI field, the UE may also determine the RS resource index q with ID zero of the path loss reference RS. d .

[0054] Δ TF,b,f,c (i) is a transmission power adjustment component (offset, transmission format compensation) for UL BWP b of carrier f of serving cell c.

[0055] f b,f,c (i, l) is the PUSCH power control adjustment state of the activated UL BWP b for carrier f of serving cell c in transmission opportunity i. b,f,c (i,l) can also be based on δ PUSCH,b,f,c (i,l).

[0056] When TPC accumulation is effective, f b,f,c (i,l) can also be based on δ PUSCH,b,f,c The cumulative value of (m,l).

[0057] In the case where TPC accumulation is invalid, f b,f,c (i,l) can also be δ PUSCH,b,f,c (i,l)(absolute value).

[0058] When information (TPC-Accumulation) indicating that TPC accumulation is disabled is not set (when information indicating that TPC accumulation is disabled is not provided and TPC accumulation is set to be valid), the UE accumulates the TPC command value and determines the transmission power (TPC command value is applied after accumulation) based on the accumulated result (power control state).

[0059] In a case where information (TPC-Accumulation) is set to indicate invalid TPC accumulation (in a case where information indicating invalid TPC accumulation is provided, and TPC accumulation is set to invalid), the UE does not accumulate the TPC command value and determines the transmission power based on the TPC command value (power control state) (the TPC command value is applied without utilizing accumulation).

[0060] δ PUSCH,b,f,c (i,l) can also be the following TPC command value: the TPC command value contained in DCI format 0_0 or DCI format 0_1 ​​for scheduling PUSCH transmission opportunity i on the activated UL BWP b of carrier f of serving cell c, or the TPC command value encoded in combination with other TPC commands in DCI format 2_2 having a CRC encrypted by a specific RNTI (Radio Network Temporary Identifier) ​​(for example, TPC-PUSCH-RNTI).

[0061] Σ m＝0 C(Di)-1 δ PUCCH,b,f,c (m,l) can also have a concentration (cardinality) C(D i ) of the TPC command values ​​D i The total of the TPC command values ​​in D i It can also be the UE's PUSCH power control adjustment state l, the K of the PUSCH transmission opportunity i-i0 on the activated UL BWP b of the carrier f of the serving cell c. PUSCH K of (i-i0)-1 symbol before and PUSCH transmission opportunity i PUSCH (i) The set of TPC command values ​​received between the symbols before. i0 is K, which can also be used to make PUSCH transmission opportunity i-i0. PUSCH K before (i-i0) symbol before PUSCH transmission opportunity i PUSCH (i) The smallest positive integer preceding the code element.

[0062] When PUSCH transmission is scheduled by DCI format 0_0 or DCI format 0_1, K PUSCH (i) It may also be the number of symbols in the activated UL BWP b of carrier f of serving cell c after the last symbol received by the corresponding PDCCH and before the first symbol transmitted by the corresponding PUSCH. When PUSCH transmission is configured by configuring the grant structure information (ConfiguredGrantConfig), K PUSCH (i) It can also be the number of symbols per time slot N in the activated UL BWP b of carrier f of serving cell c. symb slot K is equal to the product of the minimum value provided by k2 in the PUSCH common configuration information (PUSCH-ConfigCommon) PUSCH,min The number of code elements.

[0063] The power control adjustment state may also be set by a high-level parameter to have multiple states (e.g., 2 states) or a single state. In addition, when multiple power control adjustment states are set, one of the multiple power control adjustment states may be identified by an index l (e.g., 1∈{0,1}).

[0064] The transmission power of PUCCH and SRS is also determined by setting the maximum output power P in the same way as the transmission power of PUSCH. CMAX,f,c(i) and restricted.

[0065] (Nominal maximum output power / set maximum output power)

[0066] The UE capability class specifies the maximum output power (nominal maximum output power, nominal UE power, UE maximum output power) for the transmission bandwidth within the channel bandwidth of the NR carrier.

[0067] like Figure 1 For example, the nominal maximum output power P_PowerClass is specified for each UE power class (power class) and each band. Power class 1 is specified only for public safety. Power class 1.5 is specified for UEs with dual transmission (Tx). Power class 2 is specified for high power UEs. Power class 3 is specified for handheld cellular UEs.

[0068] Class 3 with 23 dBm is a default power level. 23 dBm is derived based on the specific absorption rate (SAR) assumption when 100% of a resource is used for UL transmission.

[0069] The settings (upper and lower limits) of P_CMAX are defined by the following formula.

[0070] P CMAX_L，f，c ≤P CMAX,f，c ≤P CMAX_H，f，c with

[0071] P CMAX_L，f，c =MIN{P EMAX，c -ΔT C，c ,

[0072] (P PowerClass -ΔP PowerClass )-MAX(MAX(MPR c +ΔMPR c , A-MPR c )+

[0073] ΔT IB，c +ΔT C，c +ΔT RxSRS , P-MPR c )}

[0074] P CMAX_H，f，c =MIN{P EMAX，c , P PowerClass -ΔP PowerClass} (2)

[0076] Here, P_EMAX,c is the value given by the p-Max information element or additionalPmax for serving cell c (maximum allowed UE output power notified by higher layers). ΔP_PowerClass is an adjustment of the nominal maximum output power P_PowerClass for a given power class, which is a duty cycle dependent power reduction.

[0077] In any state (condition) of the following states 1 to 4, P_PowerClass>0. When it is not any state 1 to 4, P_PowerClass=0.

[0078] [State 1]

[0079] When any of the following conditions is met, ΔP_PowerClass=3dB for power class (PC) 2 UE and ΔP_PowerClass=6dB for PC1.5 UE.

[0080] · p-Max below 23dBm is indicated.

[0081] There is no UE capability maxUplinkDutyCycle-PC2-FR1 field, there is no UE capability maxUplinkDutyCycle-MPE-FR1 field, and the percentage of UL symbols transmitted within a certain evaluation period (certain evaluation period) is higher than 50%.

[0082] There is a field for UE capability maxUplinkDutyCycle-PC2-FR1, and the percentage of UL symbols transmitted in a certain evaluation period is higher than maxUplinkDutyCycle-PC2-FR1 (the exact evaluation period is shorter than 1 radio frame).

[0083] There is a field for UE capability maxUplinkDutyCycle-MPE-FR1, and the percentage of UL symbols transmitted in a certain evaluation period is higher than maxUplinkDutyCycle-MPE-FR1 (the exact evaluation period is shorter than 1 radio frame).

[0084] [State 2]

[0085] When any one of the following conditions is met, ΔP_PowerClass for PC1.5 UE=3dB.

[0086] • p-Max between 23dBm and 26dBm is indicated.

[0087] There is no field for UE capability maxUplinkDutyCycle-PC2-FR1, there is no field for UE capability maxUplinkDutyCycle-MPE-FR1, and the percentage of UL symbols transmitted within a certain evaluation period (certain evaluation period) is between 25% and 50%.

[0088] There is a field for UE capability maxUplinkDutyCycle-PC2-FR1, and the percentage of UL symbols transmitted in a certain evaluation period is between maxUplinkDutyCycle-PC2-FR1 and maxUplinkDutyCycle-PC2-FR1 / 2 (the exact evaluation period is shorter than 1 radio frame).

[0089] There is a field for UE capability maxUplinkDutyCycle-MPE-FR1, and the percentage of UL symbols transmitted in a certain evaluation period is higher than maxUplinkDutyCycle-MPE-FR1 (the exact evaluation period is shorter than 1 radio frame).

[0090] [State 3]

[0091] If the UE is configured with supplemental uplink (SUL) configuration and the UE is subject to the requirement (requirement) of the default power class specified in the specification in a band indicating power class 2, ΔP_PowerClass=3dB.

[0092] [State 4]

[0093] In the case of a PC2-capable UE with transmit diversity (txDiversity-r16) capability, or a PC1.5-capable UE indicating SRS transmit switching (SRS-TXSwitch) capability 't1r2' or 't1r4' or 't1r1-t1r2' or 't1r1-t1r2-t1r4', ΔP_PowerClass=3dB is applied in SRS transmission opportunities with SRS resources set in each SRS resource set consisting of one SRS port and with usage in the SRS-ResourceSet set for antenna switching ('antennaSwitching').

[0094] Rel.17NR specifies high power UE. It can transmit with power higher than 23dBm. 23dBm is considered as default PC (PC3). 23dBm is derived based on SAR requirement when UE transmits UL in 100% of certain resources.

[0095] (Upper limit of transmission power in CA and DC)

[0096] A UE capable of dynamic power sharing can set a total maximum transmit power P_Total^EN-DC(P_Total) in EN-DC. The total maximum transmit power is based on the set value P_PowerClass,EN-DC(p-maxUE-FR1) and the value P_PowerClass,EN-DC-ΔP_PowerClass,EN-DC according to the power class. Figure 2 For example, when the sum of the NR transmit power P_NR and the E-UTRA transmit power P_LTE exceeds the total maximum transmit power P_Total, the NR transmit power is limited until the sum becomes less than P_Total.

[0097] The study increases the upper limit of UE power for Carrier Aggregation (CA) and Dual Connectivity (DC).

[0098] For example, in inter-band CA, the P_CMAC for the overall CA transmission is studied to be enhanced so that the full nominal maximum output power available can be utilized in accordance with the UE capability (e.g., HigherPowerLimitCADC). That is, P_PowerClass is replaced by 10log10ΣP_PowerClass,c. Here, P_PowerClass,c is the P_PowerClass of each band.

[0099] For example, in inter-band E-UTRAN / NR(EN)-DC, the P_CMAX for the overall CA transmission is studied to be enhanced so that the full nominal maximum output power available can be utilized in accordance with the UE capabilities (e.g., HigherPowerLimitCADC). That is, P_PowerClass is replaced by a value obtained by converting the sum of the linear values ​​of P_PowerClass,NR and P_PowerClass,E-UTRA into dB. Here, P_PowerClass,NR is the P_PowerClass of NR; P_PowerClass,E-UTRA is the P_PowerClass of E-UTRA.

[0100] In the present disclosure, the full nominal maximum output power available is utilized, which is also referred to as high power CA / DC UL transmission.

[0101] For this function, the following items are studied.

[0102] The amount of UL resources during the evaluation period;

[0103] Whether the supplemental uplink (SUL) is set;

[0104] Whether the UL transmission is an SRS with antenna switching.

[0105] In order to enable high-power CA / DC UL transmission, it is preferable that ΔP_PowerClass=0 as described above.

[0106] Here, it is assumed that the maximum output power of CC#1 (band #1) is 26 dBm and the maximum output power of CC#2 (band #2) is 23 dBm.

[0107] If a dedicated power amplifier (PA) is actually installed for each CC / band, and if full power is assumed for each CC, the technically possible total maximum output power is 27.76 dBm.

[0108] Before Rel.16, when the CA / DC power level is PC3, the total maximum output power is 23dBm, and when the CA / DC power level is PC2, the total maximum output power is 26dBm. Figure 3A As shown in the example, a total maximum output power higher than 26dBm is not allowed.

[0109] In Rel.17, when the CA / DC power level is PC3, the total maximum output power is 23dBm, and when the CA / DC power level is PC2, the total maximum output power is 26dBm. Figure 3B As shown in the example, when the CA / DC power level is PC2 and the UE reports capability (HigherPowerLimitCADC), the total maximum output power is 27.76dBm.

[0110] (PHR)

[0111] As power headroom reporting (PHR), any of Type 1 to 3, Maximum Permissible Exposure (MPE) Power Management - Maximum Management Reduction (P-MPR) reporting can be utilized. Type 1 provides the difference between the nominal maximum output power and the estimated power for UL-SCH transmissions to the serving gNB for each activated serving cell. Type 2 provides the nominal maximum output association to the serving gNB with the difference between the power estimated for UL-SCH transmissions and PUCCH transmissions for other MAC entities on the SpCell. Type 3 provides the difference between the nominal maximum output power and the estimated power for SRS transmissions to the serving gNB for each activated serving cell. MPE P-MPR provides the gNB with power backoff to meet the MPE FR2 requirements for serving cells operating on FR2.

[0112] PHR can also be triggered based on at least one of the following: expiration of the PHR prohibit timer (phr-ProhibitTimer), change in path loss (threshold phr-Tx-PowerFactorChange), expiration of the PHR periodic timer (pht-PeriodicTimer), activation of SCell, activation of SCG, addition of PSCell, MAC entity having UL resources for transmission, change in required power backoff (threshold phr-Tx-PowerFactorChange), switching of BWP of SCell, setting of MPEFR2 report (mpe-Reporting-FR2), and measured P-MPR (threshold phr-Tx-PowerFactorChange).

[0113] When multiple PHRs (multiplePHR) are set, the multi-entry PHR is used, and otherwise, the single-entry PHR is used.

[0114] The PHR may also be transmitted through MAC (Medium Access Control) signaling using PUSCH (Physical Uplink Shared Channel). For example, the PHR is notified using a PHR MAC CE (Control Element) included in a MAC PDU (Protocol Data Unit).

[0115] In NR, a single entry PHR MAC CE related to the Primary Cell (PCell) is supported.

[0116] Figure 4 An example of a single-entry PHR MAC CE in Rel.15 / 16 NR is shown. This MAC CE consists of 2 octets (=16 bits). This MAC CE includes the fields of R, PH, P, P_CMAX,f,c, and MPE.

[0117] 'R' respectively represents a 1-bit reserved field, for example, a value set to '0'.

[0118] 'PH (Type 1, PCell)' is a 6-bit field indicating an index related to a Type 1 PH of a primary cell (PCell). The index related to the PH is associated with a specific PH value (decibel (dB) unit) (or level).

[0119] In addition, for example, type 1 PH may be a PH that takes PUSCH into consideration (for example, only the power of PUSCH is considered), type 2 PH may be a PH that takes PUCCH into consideration (for example, the power of both PUSCH and PUCCH is considered), and type 3 PH may be a PH that takes measurement reference signals (Sounding Reference Signal (SRS))) into consideration (for example, the power of PUSCH and SRS is considered).

[0120] 'P CMAX,f,c ' indicates a 6-bit field indicating the P used for the calculation of the above PH field CMAX,f,c Related index. CMAX,f,c The relevant index is associated with a specific UE transmit power level (dB). CMAX,f,cIt can also be referred to as the set maximum transmission power (maximum allowed transmission power) for serving cell c of carrier f. CMAX,f,c It can also be simply expressed as P CMAX , PCMAX, etc.

[0121] 'P' can be a field related to the Power Management Maximum Power Reduction (P-MPR) or the Maximum Permitted UE Output Power Reduction for the serving cell c, or a field associated with the Maximum Permitted Exposure (MPE). 'MPE' can also be a field associated with MPE. Fields such as 'P' and 'MPE' can also be rewritten as 'R' fields by using high-layer signaling settings to the UE.

[0122] The 'P' field is set to 0 if the P-MPR value applied to meet the MPE requirement is less than a specific P-MPR value (e.g., P-MPR_00) when MPE reporting of FR2 is set (higher layer parameter mpe-Reporting-FR2) and the serving cell operates in FR2, otherwise it is set to 1.

[0123] In addition, the 'P' field may also indicate whether power backoff is applied for power management when the MPE report of FR2 is not configured or the serving cell operates in FR1. CMAX In the case where the fields have different values, the 'P' field is set to 1.

[0124] The 'MPE' field may also indicate the power backoff applied to meet the MPE requirement when MPE reporting for FR2 is set (higher layer parameter mpe-Reporting-FR2), the serving cell operates in FR2, and the 'P' field is set to 1. This field may also indicate an index corresponding to the measured P-MPR value (e.g., in dB units).

[0125] When the MPE report of FR2 is not configured, or the serving cell operates in FR1, or the 'P' field is configured to 0, an R field (R bit) may exist instead of the 'MPE' field.

[0126] In NR, multiple entry PHR MAC CE (multiple entry PHR MAC CE) containing multiple data similar to the above-mentioned single entry (2 octets) can also be supported. The multiple entry PHR MAC CE can also include PH fields for primary secondary cells (PSCell) and secondary cells (SCell). In addition, PCell and PSCell can also be called special cells (Special Cell (SpCell)).

[0127] Figure 5 An example of a multi-entry PHR MAC CE in Rel.15 / 16 NR is shown. This MAC CE includes fields of C_i, R, V, PH, P, P_CMAX, f, c, and MPE. The same fields as those in the single-entry PHR MAC CE are not described repeatedly.

[0128] The 6-bit field of 'PH' indicates a PH field for a corresponding type (eg, types 1 to 3 described above) and for a cell, respectively.

[0129] In addition, the existence of the Type 2 PH field of SpCell for other MAC entities may also be set by setting the higher layer parameter phr-Type2OtherCell to true.

[0130] 'P CMAX,f,c The 6-bit field indicates the PH used in the calculation of the immediately preceding PH field. CMAX,f,c P CMAX,f,c Field. 'C i ' is a field indicating whether the PH field of the serving cell corresponding to the serving cell index i is included in the PHR. In addition, the example in the figure is a case where the maximum serving cell index is less than 8. When it is greater than 8, the MAC CE may also include, for example, 'C field that can indicate serving cells up to i=31. i ' field.

[0131] In addition, the number added to the "serving cell" in the PH field and the CMAX,f,c The number attached to the field may not mean the serving cell index, but may simply mean the number of values ​​contained in the MAC CE.

[0132] 'V' is a field indicating whether the PH value corresponding to the immediately following PH field is based on actual transmission (V=0) or based on a reference format (V=1). A PH based on a reference format may also be referred to as a virtual PH. In addition, in the case of V=1, the corresponding 'PH CMAX,c The ' field, 'MPE' field, etc. can also be omitted (omit).

[0133] The network may also send PHR setting information related to the conditions for triggering PHR to the UE. Here, the PHR setting information includes, for example, a prohibit timer, a periodic timer, a threshold for path loss change, etc. High-layer signaling may also be used in the notification. When the PHR triggering conditions are met, the UE triggers PHR.

[0134] like Figure 6 For example, the mapping between pH value and the value (range) of the measured quantity is specified in the specification. Figure 7 For example, the mapping between P_CMAX and the value (range) of the measured quantity is specified in the specification. Figure 8 For example, a mapping between the reported values ​​of FR2 P-MPR and the values ​​(ranges) of the measured quantities is specified in the specification.

[0135] UL inter-band CA / DC is practical when the UE reports the capability of high-power CA / DC UL transmission and meets the required conditions. When the UE does not report the capability of high-power CA / DC, UL inter-band CA / DC is not practical and will cause coverage limitation because the transmit power in each CC is limited. From the base station's point of view, it is not clear whether the UE actually meets the conditions. Fig. 9 For example, when the UE uses CA / DC to perform simultaneous transmission in CC#1 and #2, it is not clear to the network (NW) / gNB whether the UE uses high-power CA / DC UL transmission.

[0136] Thus, the operation of UL transmission (high-power UL transmission) using a higher transmission power than the nominal maximum output power corresponding to the band / power level is not clear. If high-power UL transmission is not fully studied, there is a concern that it may lead to a reduction in coverage, a reduction in communication quality, a reduction in throughput, etc.

[0137] Therefore, the inventors of the present invention conceived a method for determining transmission power.

[0138] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The wireless communication methods according to the embodiments may be applied individually or in combination.

[0139] In the present disclosure, "A / B" and "at least one of A and B" may be replaced with each other. In addition, in the present disclosure, "A / B / C" may also mean "at least one of A, B, and C".

[0140] In the present disclosure, activate, deactivate, indicate (or specify), select, configure, update, determine, etc. may also be mutually rewritten. In the present disclosure, support, control, controllable, operate, and operate may also be mutually rewritten.

[0141] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, high-layer parameters, information elements (IE), settings, etc. can also be overwritten with each other. In the present disclosure, Medium Access Control (MAC) Control Element (CE), update commands, activation / deactivation commands, etc. can also be overwritten with each other.

[0142] In the present disclosure, the high-layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

[0143] In the present disclosure, MAC signaling may also use, for example, MAC Control Element (MACCE), MAC Protocol Data Unit (PDU), etc. Broadcast information may also be, for example, Master Information Block (MIB), System Information Block (SIB), minimum system information (Remaining Minimum System Information (RMSI)), Other System Information (Other System Information (OSI)), etc.

[0144] In the present disclosure, the physical layer signaling may be, for example, downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI)), etc.

[0145] In the present disclosure, index, identifier (ID), indicator, resource ID, etc. may also be mutually overwritten. In the present disclosure, sequence, list, set, group, group, cluster, subset, etc. may also be mutually overwritten.

[0146] In the present disclosure, panel, UE panel, panel group, beam, beam group, precoder, uplink (UL) transmission entity, transmission / reception point (TRP)), base station, spatial relation information (SpatialRelationInformation(SRI)), spatial relation, SRS resource indicator (SRS Resource Indicator(SRI)), control resource set (COntrol REsource SET(CORESET)), physical downlink shared channel (Physical Downlink Shared Channel(PDSCH)), codeword (Codeword(CW)), transport block (TransportBlock(TB)), reference signal (ReferenceSignal(RS)), antenna port (e.g., demodulation reference signal (DeModulation ReferenceSignal(DMRS)) port), antenna port group (e.g., DMRS port group), group (e.g., spatial relation group, code division multiplexing (Code Division Multiplexing(CDM)) group), reference signal group, CORESET group, physical uplink control channel (Physical Uplink Control Channel (PUCCH)) group, PUCCH resource group), resources (for example, reference signal resources, SRS resources), resource sets (for example, reference signal resource sets), CORESET pool, downlink transmission configuration indication state (Transmission Configuration Indication state (TCI state)) (DL TCI state), uplink TCI state (UL TCI state), unified TCI state (unified TCI state), common TCI state (common TCI state), Quasi-Co-Location (Quasi-Co-Location (QCL)), QCL assumptions, etc. can also be rewritten with each other.

[0147] In the present disclosure, the nominal maximum output power, the nominal UE power, the UE maximum output power, the maximum UE power, the maximum output power, the maximum output power specified for the power class, P_PowerClass, P PowerClass In the present disclosure, the adjustment of the maximum output power for a given power level, the adjustment of the nominal maximum output power, ΔP_PowerClas, ΔP PowerClass They can also be overwritten.

[0148] In the present disclosure, configured maximum output power, configured transmit power, UE-configured maximum output power, set maximum UE output power, actual maximum output power, maximum output power, P_CMAX, P CMAX,f,c (i) They can also be overwritten with each other. In the present disclosure, UE power level, power level, and PC can also be overwritten with each other.

[0149] In the present disclosure, base station, gNB, and network (NW) can also be rewritten mutually.

[0150] (Wireless Communication Method)

[0151] In various embodiments, uplink (UL) transmission may include at least one of PUSCH, PUCCH, and SRS.

[0152] In each embodiment, the upper limit of the transmission power (PUSCH transmission power, PUCCH transmission power, SRS transmission power) and the maximum output power P are set. CMAX,f,c (i) Set the upper limit of the maximum output power P CMAX_H,f,c , P PowerClass -ΔP PowerClass They can also rewrite each other.

[0153] In each embodiment, the high-power UL transmission may include high-power CA / DC UL transmission, and may also include UL transmission with a power higher than the existing nominal maximum output power corresponding to the power level and band in a single cell / CC.

[0154] The CA / DC operation of each embodiment may also be applied when at least one of the following operation conditions is satisfied.

[0155] [Operation Condition 1] The UE is configured to operate in a single UL carrier / band / CC.

[0156] [Operation condition 2] The UE is configured to operate in multiple UL carriers / bands / CCs.

[0157] The CA / DC operation may be inter-band CA / DC, non-contiguous intra-band CA / DC, or non-contiguous intra-band CA / DC.

[0158] The various embodiments may also be applied to UL CA / DC operation only.

[0159] The UE may also send a report containing one or more status information related to the use of an output power (e.g., total maximum output power) higher than the nominal maximum output power corresponding to the band / power class (high power UL transmission). If the status information indicates that such use can be made, the UE may also control the UL transmission using the output power.

[0160] When the UE performs UL transmission in more than one cell, the condition for high-power UL transmission may be that ΔP_PowerClass in all of the more than one cells at that moment is zero. When the UE performs simultaneous UL transmission in multiple cells using CA / DC, the condition for high-power CA / DC UL transmission may also be that ΔP_PowerClass in all of the multiple cells at that moment is zero.

[0161] <Implementation method #1>

[0162] Reporting of information (status information) on whether the UE meets the conditions for using higher power may also be introduced. This allows the base station to identify whether high-power UL transmission can be used for one or more bands.

[0163] 《Implementation Method #1-1》

[0164] The status information may also include at least one of the following information.

[0165] · Is ΔP_PowerClass zero?

[0166] Whether high-power UL transmission (high-power CA / DC UL transmission) is possible (whether the conditions for high-power UL transmission are met).

[0167] After what time period, high-power UL transmission (high-power CA / DC UL transmission) can be performed (whether the conditions for high-power UL transmission are met). The time unit can be expressed in units of radio frames (10ms) / time slots / symbols, or in absolute time (e.g., ms / μs).

[0168] Duration of the evaluation period: The duration can be expressed in units of radio frame (10 ms) / time slot / symbol, or in absolute time (eg, ms / μs).

[0169] like Fig.10 For example, the UE may also report status information after the evaluation period.

[0170] In the base station, the state information may be used to determine whether to set a coverage compensation method, or to determine whether to set a UL CA / DC operation using the band. For example, the coverage compensation method may be repetition.

[0171] like Fig.11 For example, in UL CA / DC operation, it is considered that the evaluation period is different for each UE or the evaluation period is different for each CC. The UE may also report the status information after the evaluation period, and then simultaneously transmit UL#1 and #2 in multiple CCs.

[0172] It is also possible to enable high-power CA / DC UL transmission when ΔP_PowerClass is zero in all of the multiple CCs used for CA / DC. In this case, the improvement of coverage in CA / DC operation is effective. It is also possible to disable high-power CA / DD UL transmission when ΔP_PowerClass is not zero in any of the multiple CCs used for CA / DC. In this case, the improvement of coverage in CA / DC operation is not effective.

[0173] 《Implementation Method #1-2》

[0174] The reporting method of the status information may also follow at least one of the following reporting methods 1-3.

[0175] [Reporting Method 1]

[0176] The status information may also be included in the UCI on the PUCCH. The report may be periodic, semi-persistent, or aperiodic. In particular, the report may also be periodic / semi-persistent.

[0177] [Reporting Method 2]

[0178] The status information may also be included in the UCI on the PUSCH. The report may be periodic, semi-persistent, or aperiodic. In particular, the report may also be periodic / semi-persistent.

[0179] [Reporting method 3]

[0180] The status information may also be included in the MAC CE on the PUSCH. The report may be periodic, semi-persistent, or aperiodic. In particular, the report may also be periodic / semi-persistent.

[0181] The MAC CE may be a new MAC CE or a part / reuse of an existing MAC CE. For example, the existing MAC CE may also be a PHR MAC CE. When the PHR MAC CE is used for reporting status information, the ΔP_PowerClass used for reporting may also be used for PHR calculation.

[0182] [[Example 1]]

[0183] The existing MAC CE may also be a single-entry PHR MAC CE.

[0184] like Fig.12 As shown in the example of , in the single-entry PHR MAC CE, the "R" field of the first octet may also be replaced with a specific field (eg, an "X" field). For example, the "X" field may also indicate whether ΔP_PowerClass is zero.

[0185] [[Example 2]]

[0186] The existing MAC CE may also be a multi-entry PHR MAC CE.

[0187] like Fig.13 As shown in the example, in the multi-entry PHR MAC CE, one or more new octets may be added. The new octet may also include N specific fields (e.g., "X_i" fields). For example, the "X_i" field may also indicate whether the ΔP_PowerClass corresponding to the index i of the activated cell is zero.

[0188] The multi-entry PHR MAC CE may also contain a specific field. Fig.14 As shown in the example, the "R" field of the first octet may also be replaced with a specific field (eg, an "X" field). For example, the "X" field may also indicate whether all ΔP_PowerClasses for all activated cells are zero (whether at least one ΔP_PowerClass is not zero).

[0189] [[Example 3]]

[0190] The existing MAC CE may also be an enhanced single-entry PHR MAC CE or an enhanced multi-entry PHR MAC CE.

[0191] One or more "R" fields may also be replaced with a specific field (eg, an "X" field).

[0192] The existing MAC CE may also contain an "X_i" field for each beam (SSBRI or CRI). Fig.15As shown in the example, the "X_i" field can also be replaced with the "R" field in the same octet as SSBRI or CRI. For example, the "X_i" field of each beam can also indicate whether the ΔP_PowerClass corresponding to the beam is zero. By reporting the "X_i" field of each beam by the UE, the UE can determine / report beam-specific information, and the base station can use the beam-specific information for scheduling.

[0193] The existing MAC CE may also include an "X" field. Fig.16 As shown in the example of , the "R" field in the first octet may also be replaced with an "X" field. For example, the "X" field may also indicate whether ΔP_PowerClass is zero (for all beams reported by this MAC CE).

[0194] The reporting of status information may be reported through RRC IE, may be triggered by DL MAC CE, may be triggered by DCI, or may be a combination of RRC IE-based settings and DL MAC CE / DCI-based triggering.

[0195] 《Implementation Method #1-3》

[0196] Status can also be reported at any of the following granularities.

[0197] [Granularity 1] Status information for each CC / cell may also be reported.

[0198] [Granularity 2] can also report status information for each activated cell.

[0199] [Granularity 3] can also report single status information for all activated cells.

[0200] 《Implementation Method #1-4》

[0201] The number of status information per report may also be any of the following numbers of status information.

[0202] [Number of status messages 1] A report can also contain only one status message.

[0203] [Number of status information 2] A report may also include multiple pieces of status information. For example, the report in the reporting method 1 may also include multiple pieces of status information corresponding to multiple cells.

[0204] According to this embodiment, the UE can utilize a higher output power than the nominal maximum output power specified for the band / power class.

[0205] <Supplement>

[0206] At least one operation of the above-mentioned embodiments may also be applied only to a UE that reports a specific UE capability (UE capability) or supports the specific UE capability.

[0207] The specific UE capability may also represent at least one of the following:

[0208] Support implementation method 1;

[0209] Support implementation mode 1 for a certain band;

[0210] Support implementation mode 1 for a certain band combination;

[0211] Supporting implementation mode 1 for a certain band within a certain band combination;

[0212] Implementation mode 1 is supported for a certain CC in a certain band in a certain band combination.

[0213] In addition, the above-mentioned specific UE capabilities can be capabilities that are applied across all frequencies (commonly regardless of frequency), or capabilities for each frequency (for example, cell, band, BWP), or capabilities for each frequency range (for example, Frequency Range 1 (FR1)), FR2, FR3, FR4, FR5, FR2-1, FR2-2), or capabilities for each subcarrier spacing (Sub Carrier Spacing (SCS)).

[0214] In addition, the above-mentioned specific UE capabilities can be capabilities applied across full-duplex modes (commonly regardless of the duplex mode) or capabilities according to duplex modes (for example, time division duplex (TDD) and frequency division duplex (FDD)).

[0215] In addition, at least one operation of the above-mentioned embodiments may also be applied to the following situation: that is, the UE is set with specific information associated with the above-mentioned embodiments through high-layer signaling. For example, the specific information may also be information indicating activation of at least one operation of the above-mentioned embodiments, any RRC parameter for a specific version (e.g., Rel.18), etc.

[0216] The UE may also apply operations such as Rel.15 / 16 / 17 without supporting at least one of the above-mentioned specific UE capabilities or without being set with the above-mentioned specific information.

[0217] (Note)

[0218] The following inventions are added to one embodiment of the present disclosure.

[0219] [Note 1]

[0220] A terminal having:

[0221] a transmitting unit configured to transmit a report including one or more pieces of status information related to utilization of an output power higher than a nominal maximum output power corresponding to the band; and

[0222] The control unit controls uplink transmission using the output power when the state information indicates that the use is possible.

[0223] [Note 2]

[0224] A terminal as described in Appendix 1, wherein:

[0225] Each state information includes state information for each cell, state information for each activated cell, or state information for all activated cells.

[0226] [Note 3]

[0227] A terminal as described in Supplement 1 or Supplement 2, wherein:

[0228] The status information indicates whether the adjustment to the nominal maximum output power is zero.

[0229] [Note 4]

[0230] A terminal as described in any one of Notes 1 to 3, wherein:

[0231] The report may also include a power headroom report PHR.

[0232] (Wireless Communication System)

[0233] Hereinafter, a configuration of a wireless communication system according to an embodiment of the present disclosure will be described. In the wireless communication system, communication is performed using any one of the wireless communication methods according to the above-mentioned embodiments of the present disclosure or a combination thereof.

[0234] Fig.171 is a diagram showing an example of a schematic structure of a wireless communication system involved in one embodiment. The wireless communication system 1 may also be a system that implements communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), the fifth generation mobile communication system New Radio (5G NR), and the like.

[0235] In addition, the wireless communication system 1 can also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple radio access technologies (Radio Access Technology (RAT)). MR-DC can also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA))) and NR (E-UTRA-NR Dual Connectivity (E-UTRA-NR Dual Connectivity (EN-DC))), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NR-E-UTRA Dual Connectivity (NE-DC))), etc.

[0236] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the master node (Master Node (MN)), and the base station (gNB) of NR is the secondary node (Secondary Node (SN)). In NE-DC, the base station (gNB) of NR is the MN, and the base station (eNB) of LTE (E-UTRA) is the SN.

[0237] The wireless communication system 1 can also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) where both MN and SN are NR base stations (gNB)).

[0238] The wireless communication system 1 may also include a base station 11 that forms a macro cell C1 with a relatively wide coverage, and a base station 12 (12a-12c) that is configured in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 may also be located in at least one cell. The configuration and number of each cell and user terminal 20 are not limited to the method shown in the figure. Hereinafter, when the base stations 11 and 12 are not distinguished, they are collectively referred to as base stations 10.

[0239] The user terminal 20 may be connected to at least one of the plurality of base stations 10. The user terminal 20 may use at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).

[0240] Each CC may also be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may also be included in FR1, and the small cell C2 may also be included in FR2. For example, FR1 may be a frequency band below 6 GHz (below 6 GHz (sub-6 GHz)), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). In addition, the frequency bands and definitions of FR1 and FR2 are not limited to these. For example, FR1 may also be equivalent to a frequency band higher than FR2.

[0241] Furthermore, the user terminal 20 may perform communication in each CC using at least one of time division duplex (TDD) and frequency division duplex (FDD).

[0242] Multiple base stations 10 may also be connected via wired (e.g., optical fiber based on Common Public Radio Interface (CPRI)), X2 interface, etc.) or wireless (e.g., NR communication). For example, when NR communication between base stations 11 and 12 is used as a backhaul, the base station 11 equivalent to the upper station may also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12 equivalent to a relay station (relay) may also be referred to as an IAB node.

[0243] The base station 10 may also be connected to the core network 30 via other base stations 10 or directly. The core network 30 may also include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0244] The user terminal 20 may also be a terminal that supports at least one of communication modes such as LTE, LTE-A, and 5G.

[0245] In the wireless communication system 1, a wireless access method based on orthogonal frequency division multiplexing (OFDM) may be used. For example, in at least one of the downlink (DL) and the uplink (UL), cyclic prefix OFDM (CP-OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), etc. may be used.

[0246] The radio access scheme may also be referred to as a waveform. In addition, in the wireless communication system 1, other radio access schemes (for example, other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the radio access schemes for UL and DL.

[0247] As downlink channels, the wireless communication system 1 may use 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.

[0248] In addition, as uplink channels, 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)) and the like can also be used in the wireless communication system 1.

[0249] User data, high-layer control information, system information block (SIB), etc. are transmitted through PDSCH. User data, high-layer control information, etc. can also be transmitted through PUSCH. In addition, master information block (MIB) can also be transmitted through PBCH.

[0250] The lower layer control information may also be transmitted via the PDCCH. The lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of the PDSCH and the PUSCH.

[0251] In addition, the DCI for scheduling the PDSCH may also be referred to as DL allocation, DL DCI, etc., and the DCI for scheduling the PUSCH may also be referred to as UL grant, UL DCI, etc. In addition, the PDSCH may also be rewritten as DL data, and the PUSCH may also be rewritten as UL data.

[0252] In the detection of PDCCH, the control resource set (CORESET) and the search space can also be used. CORESET corresponds to the resources for searching DCI. The search space corresponds to the search area and search method of PDCCH candidates. A CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a search space based on the search space setting.

[0253] A search space may also correspond to a PDCCH candidate corresponding to one or more aggregation levels. One or more search spaces may also be referred to as a search space set. In addition, the "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting" and the like in the present disclosure may also be rewritten mutually.

[0254] Uplink control information (uplink control information (UCI)) including at least one of channel state information (CSI), delivery confirmation information (e.g., also known as hybrid automatic repeat request confirmation (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR) can also be transmitted through PUCCH. The random access preamble used to establish a connection with a cell can also be transmitted through PRACH.

[0255] In the present disclosure, downlink, uplink, etc. may be expressed without the word “link.” In addition, various channels may be expressed without the word “physical” at the beginning.

[0256] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. can also be transmitted. As DL-RS, in the wireless communication system 1, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc. can also be transmitted.

[0257] The synchronization signal may be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may also be referred to as SS / PBCH block, SS block (SSB), etc. In addition, SS, SSB, etc. may also be referred to as reference signals.

[0258] In addition, in the wireless communication system 1, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a measurement reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. can also be transmitted. In addition, DMRS can also be called a user terminal specific reference signal (UE-specific Reference Signal).

[0259] (Base Station)

[0260] Fig.18 1 is a diagram showing an example of a structure of a base station according to an embodiment. The base station 10 includes a control unit 110, a transmitting and receiving unit 120, a transmitting and receiving antenna 130, and a transmission path interface (transmission line interface) 140. In addition, the control unit 110, the transmitting and receiving unit 120, the transmitting and receiving antenna 130, and the transmission path interface 140 may each be provided with more than one.

[0261] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also conceivable that the base station 10 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may also be omitted.

[0262] The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, a control circuit, and the like that are described based on common knowledge in the technical field to which the present disclosure relates.

[0263] The control unit 110 may also control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception, measurement, etc. using the transmission and reception unit 120, the transmission and reception antenna 130, and the transmission path interface 140. The control unit 110 may also generate data, control information, sequences, etc. to be sent as signals, and forward them to the transmission and reception unit 120. The control unit 110 may also perform call processing (setting, release, etc.) of communication channels, state management of the base station 10, management of wireless resources, etc.

[0264] The transmitting and receiving unit 120 may also include a baseband unit 121, a radio frequency (RF) unit 122, and a measuring unit 123. The baseband unit 121 may also include a transmitting processing unit 1211 and a receiving processing unit 1212. The transmitting and receiving unit 120 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the common knowledge in the technical field involved in the present disclosure.

[0265] The transmitting and receiving unit 120 may be configured as an integrated transmitting and receiving unit, or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 1211 and an RF unit 122. The receiving unit may also be configured as a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.

[0266] The transmitting / receiving antenna 130 can be constituted by an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0267] The transmitting and receiving unit 120 may also transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 120 may also receive the above-mentioned uplink channel, uplink reference signal, etc.

[0268] The transmitting and receiving unit 120 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0269] The sending and receiving unit 120 (sending processing unit 1211) may also perform processing on the Packet Data Convergence Protocol (PDCP) layer, processing on the Radio Link Control (RLC) layer (for example, RLC retransmission control), processing on the Medium Access Control (MAC) layer (for example, HARQ retransmission control), etc., for data and control information obtained from the control unit 110, to generate a bit string to be sent.

[0270] The transmitting and receiving unit 120 (transmitting processing unit 1211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing (filtering processing), discrete Fourier transform (Discrete Fourier Transform (DFT)) processing (as needed), inverse fast Fourier transform (Inverse Fast Fourier Transform (IFFT)) processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0271] The transmitting and receiving unit 120 (RF unit 122 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 130 .

[0272] On the other hand, the transmitting and receiving unit 120 (RF unit 122 ) may also perform amplification, filter processing, demodulation to a baseband signal, etc. on the signal in the radio frequency band received by the transmitting and receiving antenna 130 .

[0273] The sending and receiving unit 120 (receiving processing unit 1212) can also apply analog-to-digital conversion, fast Fourier transform (FFT) processing, inverse discrete Fourier transform (IDFT) processing (as needed), filter processing (filtering processing), demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to obtain user data, etc.

[0274] The transmitting and receiving unit 120 (measuring unit 123) may also implement measurements related to the received signal. For example, the measuring unit 123 may also perform radio resource management (Radio Resource Management (RRM)) measurements, channel state information (CSI) measurements, etc. based on the received signal. The measuring unit 123 may also measure received power (e.g., reference signal received power (Reference Signal Received Power (RSRP))), received quality (e.g., reference signal received quality (Reference Signal Received Quality (RSRQ)), signal to interference plus noise ratio (Signal to Interference plus Noise Ratio (SINR)), signal to noise ratio (Signal to Noise Ratio (SNR))), signal strength (e.g., received signal strength indicator (Received Signal Strength Indicator (RSSI))), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0275] The transmission path interface 140 can also send and receive signals (return signaling) between devices included in the core network 30, other base stations 10, etc., and can also obtain and transmit user data (user plane data) and control plane data for the user terminal 20.

[0276] In addition, the transmission unit and the reception unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmission and reception unit 120 , the transmission and reception antenna 130 , and the transmission path interface 140 .

[0277] The transmitting and receiving unit 120 may also receive a report including one or more status information regarding the use of an output power higher than the nominal maximum output power corresponding to the band. The control unit 110 may also control uplink reception using the output power when the status information indicates that the use can be performed.

[0278] (User Terminal)

[0279] Fig.19 The user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. In addition, the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may be provided in one or more pieces.

[0280] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also conceivable that the user terminal 20 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may be omitted.

[0281] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, a control circuit, and the like that are described based on common knowledge in the technical field to which the present disclosure relates.

[0282] The control unit 210 may also control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc. using the transmission and reception unit 220 and the transmission and reception antenna 230. The control unit 210 may also generate data, control information, sequences, etc. to be transmitted as signals, and forward them to the transmission and reception unit 220.

[0283] The transmitting and receiving unit 220 may also include a baseband unit 221, an RF unit 222, and a measuring unit 223. The baseband unit 221 may also include a transmitting processing unit 2211 and a receiving processing unit 2212. The transmitting and receiving unit 220 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the common knowledge in the technical field involved in the present disclosure.

[0284] The transmitting and receiving unit 220 may be configured as an integrated transmitting and receiving unit, or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 2211 and an RF unit 222. The receiving unit may also be configured as a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.

[0285] The transmitting / receiving antenna 230 can be constituted by an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0286] The transmitting and receiving unit 220 may also receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 220 may also transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0287] The transmitting and receiving unit 220 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0288] The sending and receiving unit 220 (sending processing unit 2211) can also perform PDCP layer processing, RLC layer processing (for example, RLC retransmission control), MAC layer processing (for example, HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 210 to generate a bit string to be sent.

[0289] The transmitting and receiving unit 220 (transmitting processing unit 2211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing (filtering processing), DFT processing (as needed), IFFT processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0290] In addition, whether to apply DFT processing may also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when transform precoding is valid (enabled), the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using a DFT-s-OFDM waveform. Otherwise, the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing without performing DFT processing.

[0291] The transmitting and receiving unit 220 (RF unit 222 ) may perform modulation, filter processing (filtering processing), amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 230 .

[0292] On the other hand, the transmitting and receiving unit 220 (RF unit 222) may perform amplification, filter processing (filter processing), demodulation into a baseband signal, etc. on the signal in the radio frequency band received by the transmitting and receiving antenna 230.

[0293] The sending and receiving unit 220 (receiving processing unit 2212) can also apply analog-to-digital conversion, FFT processing, IDFT processing (as needed), filter processing (filtering processing), demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the obtained baseband signal to obtain user data, etc.

[0294] The transmitting and receiving unit 220 (measuring unit 223) may also perform measurements related to the received signal. For example, the measuring unit 223 may also perform RRM measurements, CSI measurements, etc. based on the received signal. The measuring unit 223 may also measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 210.

[0295] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be composed of at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230 .

[0296] The transmitting and receiving unit 220 may also transmit a report including one or more status information regarding the use of an output power higher than the nominal maximum output power corresponding to the band. The control unit 210 may also control uplink transmission using the output power when the status information indicates that the use can be performed.

[0297] Each state information may include state information for each cell, state information for each activated cell, or state information for all activated cells.

[0298] The status information may also indicate whether the adjustment to the nominal maximum output power is zero.

[0299] The report may also include a power headroom report (PHR).

[0300] (Hardware Structure)

[0301] In addition, the block diagram used in the description of the above-mentioned embodiment shows a block of a functional unit. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented by a device that is physically or logically combined, or two or more devices that are physically or logically separated can be directly or indirectly connected (for example, by wired, wireless, etc.) and implemented by these multiple devices. The functional block can also be implemented by combining the above-mentioned one device or the above-mentioned multiple devices with software.

[0302] Here, the functions include judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, solving, selecting, selecting, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but are not limited to these. For example, a functional block (structural unit) that implements a sending function may also be referred to as a transmitting unit, a transmitter, etc. Any one of them is as described above, and the implementation method thereof is not particularly limited.

[0303] For example, a base station, a user terminal, etc. in one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 20 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0304] In addition, in the present disclosure, the terms such as device, circuit, equipment, section, unit, etc. can be interchangeably used. The hardware structure of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured to exclude some of the devices.

[0305] For example, only one processor 1001 is shown, but there may be multiple processors. In addition, the processing may be performed by one processor, or may be performed by two or more processors simultaneously, sequentially, or in other ways. In addition, the processor 1001 may also be implemented by one or more chips.

[0306] The functions of the base station 10 and the user terminal 20 are realized, for example, by reading specific software (program) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls communication via the communication device 1004, or controls at least one of the reading and writing of data in the memory 1002 and the storage 1003.

[0307] The processor 1001 controls the entire computer by, for example, operating an operating system. The processor 1001 may also be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, etc. For example, at least a part of the above-mentioned control unit 110 (210), the sending and receiving unit 120 (220), etc. may also be implemented by the processor 1001.

[0308] In addition, the processor 1001 reads the program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and performs various processes based on them. As a program, a program that causes a computer to perform at least a part of the operations described in the above-mentioned embodiments can be used. For example, the control unit 110 (210) can also be implemented by a control program stored in the memory 1002 and operated in the processor 1001, and the same can be implemented for other functional blocks.

[0309] The memory 1002 may also be a computer-readable recording medium, for example, composed of at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), or other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing the wireless communication method involved in one embodiment of the present disclosure.

[0310] The storage 1003 may also be a computer-readable recording medium, such as a flexible disk, a floppy disk, an optical disk (such as a compact disk (Compact Disc ROM (CD-ROM)), a digital versatile disk, a Blu-ray (Blu-ray) (registered trademark) disk), a removable disk, a hard disk drive, a smart card, a flash memory device (such as a card, a stick, a key drive), a magnetic stripe, a database, a server, or at least one of other suitable storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0311] The communication device 1004 is hardware (transmitting and receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, etc. In order to realize at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)), the communication device 1004 can also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the above-mentioned transmitting and receiving unit 120 (220), the transmitting and receiving antenna 130 (230), etc. can also be realized by the communication device 1004. The transmitting and receiving unit 120 (220) can also be realized by physically or logically separating the transmitting unit 120a (220a) and the receiving unit 120b (220b).

[0312] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.). The output device 1006 is an output device that implements output to the outside (e.g., a display, a speaker, a light emitting diode (LED) lamp, etc.). In addition, the input device 1005 and the output device 1006 may also be an integrated structure (e.g., a touch panel).

[0313] In addition, the processor 1001, the memory 1002 and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured as a single bus or may be configured as different buses between the devices.

[0314] In addition, the base station 10 and the user terminal 20 may also be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA), and the hardware may be used to implement a part or all of each functional block. For example, the processor 1001 may also be implemented using at least one of these hardware.

[0315] (Variation Example)

[0316] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure may also be replaced with terms having the same or similar meanings. For example, channels, code elements, and signals (signals or signaling) may also be rewritten with each other. In addition, a signal may also be a message. A reference signal may also be referred to as RS, and may also be referred to as a pilot, a pilot signal, etc. depending on the standard applied. In addition, a component carrier (CC) may also be referred to as a cell, a frequency carrier, a carrier frequency, etc.

[0317] A wireless frame may also be composed of one or more periods (frames) in the time domain. Each period (frame) of the one or more periods (frames) constituting a wireless frame may also be referred to as a subframe. Further, a subframe may also be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (e.g., 1 ms) that is not dependent on a parameter set (numerology).

[0318] Here, the parameter set may also be a communication parameter applied in at least one of the transmission and reception of a certain signal or channel. For example, the parameter set may also represent at least one of a subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), the number of symbols per TTI, a wireless frame structure, a specific filter processing performed by a transmitter and receiver in the frequency domain, a specific windowing processing performed by a transmitter and receiver in the time domain, and the like.

[0319] A time slot may also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. In addition, a time slot may also be a time unit based on a parameter set.

[0320] A time slot may also include multiple mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of fewer symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type B.

[0321] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols may also be referred to by their respective names. In addition, time units such as frames, subframes, time slots, mini-time slots, and symbols in the present disclosure may also be replaced with each other.

[0322] For example, a subframe may be referred to as a TTI, a plurality of consecutive subframes may be referred to as a TTI, and a time slot or a mini time slot may be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. In addition, the unit representing a TTI may be referred to as a time slot, a mini time slot, etc. instead of a subframe.

[0323] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in the LTE system, the base station schedules each user terminal to allocate wireless resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) in TTI units. In addition, the definition of TTI is not limited to this.

[0324] TTI may also be a transmission time unit for a data packet (transport block), a code block, a code word, etc. that has been channel-coded, and may also be a processing unit for scheduling, link adaptation, etc. In addition, when 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.

[0325] In addition, when a time slot or a mini time slot is called TTI, one or more TTIs (i.e., one or more time slots or one or more mini time slots) can also be the minimum time unit of scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of scheduling can also be controlled.

[0326] A TTI having a time length of 1 ms may also be referred to as a normal TTI (TTI in 3GPP Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub time slot, a time slot, etc.

[0327] In addition, a long TTI (e.g., normal TTI, subframe, etc.) can also be rewritten as a TTI with a time length exceeding 1 ms, and a short TTI (e.g., shortened TTI, etc.) can also be rewritten as a TTI with a TTI length shorter than that of the long TTI and longer than 1 ms.

[0328] 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 (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0329] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a slot, a mini-slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks, respectively.

[0330] In addition, one or more RBs may also be referred to as a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a group / set / pair of PRB / RB, etc.

[0331] In addition, a resource block may be composed of one or more resource elements (RE). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0332] A Bandwidth Part (BWP) (also referred to as a partial bandwidth, etc.) may also represent a subset of contiguous common RBs (common resource blocks) for a parameter set in a carrier. Here, a common RB may also be identified by an index of the RB relative to a common reference point of the carrier. PRBs may also be defined in a BWP and numbered within the BWP.

[0333] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). For a UE, one or more BWPs may be configured in one carrier.

[0334] At least one of the set BWPs may be activated, and the UE may not assume that a specific signal / channel is transmitted or received outside the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be rewritten as "BWP".

[0335] In addition, the above-mentioned structures such as radio frames, subframes, time slots, mini-time slots and symbols are only examples. For example, the number of subframes included in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots included in a time slot, the number of symbols and RBs included in a time slot or mini-time slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.

[0336] In addition, the information, parameters, etc. described in the present disclosure may be represented by absolute values, relative values ​​relative to a specific value, or other corresponding information. For example, wireless resources may also be indicated by a specific index.

[0337] In the present disclosure, the names used for parameters, etc. are not limiting in all respects. Furthermore, the mathematical formulas, etc. using these parameters may be different from those explicitly disclosed in the present disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, and therefore, the various names assigned to these various channels and information elements are not limiting in all respects.

[0338] Information, signals, etc. described in this disclosure may also be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description may also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0339] Furthermore, information, signals, etc. can be output in at least one of the following directions: from a higher layer (upper layer) to a lower layer (lower layer), and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.

[0340] The input and output information, signals, etc. may be stored in a specific location (e.g., a memory), or may be managed using a management table. The input and output information, signals, etc. may be overwritten, updated, or appended. The output information, signals, etc. may also be deleted. The input information, signals, etc. may also be sent to other devices.

[0341] The notification of information is not limited to the methods / implementations described in the present disclosure, and may also be performed by other methods. For example, the notification of information in the present disclosure may also be implemented through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI))), uplink control information (Uplink Control Information (UCI))), high-layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB)), System Information Block (SIB)), etc.), Medium Access Control (MAC) signaling), other signals or a combination thereof.

[0342] In addition, physical layer signaling may also be referred to as layer 1 / layer 2 (Layer 1 / Layer 2 (L1 / L2)) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. In addition, RRC signaling may also be referred to as an RRC message, such as an RRC connection establishment (RRC Connection Setup) message, an RRC connection reconstruction (RRC Connection Reconfiguration) message, etc. In addition, MAC signaling may also be notified using, for example, a MAC control element (MACControl Element (CE)).

[0343] Furthermore, notification of specific information (eg, notification of “it is X”) is not limited to explicit notification, but may be performed implicitly (eg, by not notifying the specific information or by notifying other information).

[0344] The determination can be made by a value represented by a bit (0 or 1), by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a specific value).

[0345] Whether software is called software, firmware, middle-ware, microcode, hardware description language, or other names, it should be broadly interpreted as meaning instructions, instruction sets, code, code segments, program code, program, sub-program, software modules, applications, software applications, software packages, routines, sub-routines, objects, executable files, execution threads, procedures, functions, etc.

[0346] In addition, software, instructions, information, etc. may also be sent and received via a transmission medium. For example, when software is sent from a website, server, or other remote source using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these wired technology and wireless technology is included in the definition of transmission medium.

[0347] The terms "system" and "network" used in the present disclosure can be used interchangeably. "Network" may also refer to a device (eg, a base station) included in the network.

[0348] In the present disclosure, terms such as "precoding", "precoder", "weight (precoding weight)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", and "panel" can be used interchangeably.

[0349] In the present disclosure, terms such as "Base Station (BS)", "wireless base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "panel", "cell", "sector", "cell group", "carrier", and "component carrier" can be used interchangeably. There are also cases where base stations are referred to by terms such as macro cell, small cell, micro-micro cell, and micro-micro cell.

[0350] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the entirety of the coverage area of ​​at least one of a base station and a base station subsystem that provides communication services within the coverage area.

[0351] In the present disclosure, the base station sending information to the terminal may also be rewritten as the base station instructing the terminal to control / operate based on the information.

[0352] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (User Equipment (UE))”, and “terminal” can be used interchangeably.

[0353] There are also cases where a mobile station is 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, hand set, user agent, mobile client, client or several other appropriate terms.

[0354] At least one of the base station and the mobile station may also be referred to as a transmission device, a reception device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station may be a device mounted on a moving object, a moving object body, etc.

[0355] The mobile body refers to a movable object, and the moving speed is arbitrary, and of course it also includes the situation where the mobile body stops. The mobile body includes, for example, vehicles, transport vehicles, cars, automatic two-wheeled vehicles (motorcycles), bicycles, connected cars, loading shovels, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trolleys, rickshaws, ships (ships and other watercrafts), airplanes, rockets, artificial satellites, drones, multi-rotor aircraft, quadcopters, balloons and objects carried on them, but are not limited to these. In addition, the mobile body can also be a mobile body that drives autonomously based on operating instructions.

[0356] The mobile body may be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile body that moves unmanned (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move when performing communication operations. For example, at least one of the base station and the mobile station may also be an Internet of Things (IoT) device such as a sensor.

[0357] Fig.21 1 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, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotation speed 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.

[0358] The driving unit 41 is composed of at least one of an engine, a motor, or a combination of an engine and a motor. The steering unit 42 is composed of at least a steering wheel (also called a handlebar), and steers at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.

[0359] The electronic control unit 49 is composed of a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (for example, an input / output (IO) port) 63. Signals from various sensors 50-58 provided in the vehicle are input to the electronic control unit 49. The electronic control unit 49 may also be referred to as an ECU (Electronic Control Unit).

[0360] Signals from various sensors 50-58 include a current signal from a current sensor 50 for sensing the current of a motor, a speed signal of the front wheels 46 / rear wheels 47 obtained by a speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 obtained by other sensors 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 an accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal of a brake pedal 44 obtained by a brake pedal sensor 56, an operation signal of a shift lever 45 obtained by a shift lever sensor 57, a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58, and the like.

[0361] The information service unit 59 is composed of various devices such as a vehicle navigation system, an audio system, a speaker, 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 provides various information / services (for example, multimedia information / multimedia services) to the occupants of the vehicle 40 using information obtained from an external device via the communication module 60, etc.

[0362] The information service unit 59 may include input devices for accepting input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.), and may also include output devices for implementing output to the outside (e.g., display, speaker, LED light, touch panel, etc.).

[0363] The driving assistance system unit 64 is composed of various devices such as millimeter wave radar, light detection and ranging (LiDAR), camera, positioning locator (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., high-precision (High Definition (HD))) map, autonomous vehicle (Autonomous Vehicle (AV)) map, etc.), gyroscope system (e.g., inertial measurement unit (Inertial Measurement Unit (IMU))), inertial navigation unit (Inertial Navigation System (INS))), artificial intelligence (Artificial Intelligence (AI)) chip, AI processor, etc., for providing functions for preventing accidents before they happen or reducing the driver's driving load, and one or more ECUs for controlling these devices. In addition, the driving assistance system unit 64 sends and receives various information via the communication module 60 and realizes driving assistance function or autonomous driving function.

[0364] The communication module 60 can communicate with the microprocessor 61 and the components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) between the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the microprocessor 61 and the memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58 of the vehicle 40 via the communication port 63.

[0365] The communication module 60 can be controlled by the microprocessor 61 of the electronic control unit 49, and is a communication device that can communicate with an external device. For example, various information is sent and received with the external device via wireless communication. The communication module 60 can be located either inside or outside the electronic control unit 49. The external device can also be, for example, the above-mentioned base station 10, user terminal 20, etc. In addition, the communication module 60 can also be, for example, at least one of the above-mentioned base station 10 and user terminal 20 (it can also function as at least one of the base station 10 and user terminal 20).

[0366] The communication module 60 may also transmit at least one of the signals from the 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 also be referred to as an input unit that receives input. For example, the PUSCH transmitted through the communication module 60 may also include information based on the above input.

[0367] The communication module 60 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) transmitted from an external device, and displays it to the information service unit 59 provided in the vehicle. The information service unit 59 may also be referred to as an output unit for outputting information (for example, outputting information to a display, a speaker, etc. based on the PDSCH received by the communication module 60 (or data / information decoded from the PDSCH)).

[0368] In addition, the communication module 60 stores various information received from the external device in the memory 62 that can be used by the microprocessor 61. The microprocessor 61 can also control the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, and various sensors 50-58 of the vehicle 40 based on the information stored in the memory 62.

[0369] In addition, the base station in the present disclosure may also be rewritten as a user terminal. For example, the various methods / implementations of the present disclosure may also be applied to a structure in which the communication between a base station and a user terminal is replaced by the communication between multiple user terminals (for example, it may also be referred to as device-to-device (D2D)), vehicle-to-everything (V2X), etc.). In this case, it may also be set as a structure in which the user terminal 20 has the functions possessed by the above-mentioned base station 10. In addition, terms such as "uplink", "downlink", etc. may also be rewritten as terms corresponding to communication between terminals (for example, "sidelink"). For example, uplink channels, downlink channels, etc. may also be rewritten as sidelink channels.

[0370] Likewise, the user terminal in the present disclosure may be rewritten as a base station. In this case, the base station 10 may have the functions of the user terminal 20 described above.

[0371] In the present disclosure, the actions are assumed to be performed by the base station, and sometimes by its upper node (uppernode) depending on the situation. Obviously, in a network including one or more network nodes having a base station, various operations performed for communication with a terminal can be performed by the base station, one or more network nodes other than the base station (for example, consider the Mobility Management Entity (MME)), the Serving-Gateway (S-GW), etc., but not limited to these) or a combination thereof.

[0372] The various methods / implementations described in this disclosure may be used alone or in combination, and may be used in a switched manner as the method is executed. In addition, the processing procedures, timings, flow charts, etc. of the various methods / implementations described in this disclosure may be reversed in order as long as they are not contradictory. For example, for the method described in this disclosure, the elements of various steps are presented in an illustrative order, but are not limited to the specific order presented.

[0373] The various modes / implementations described in the present disclosure may also be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or a decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, and next-generation systems based on these enhancements, corrections, production or regulations, etc. In addition, multiple systems can also be combined (for example, LTE or LTE-A, combination with 5G, etc.) for application.

[0374] The phrase “based on” used in the present disclosure does not mean “based only on” unless otherwise specified. In other words, the phrase “based on” means both “based only on” and “based at least on”.

[0375] Any reference to an element using the terms "first", "second", etc. used in this disclosure does not fully define the amount or order of these elements. These terms can be used in this disclosure as a convenient method to distinguish between two or more elements. Therefore, reference to the first and second elements does not mean that only two elements can be used or that the first element must take precedence over the second element in some form.

[0376] The term "determining" used in the present disclosure may include a variety of actions. For example, "determining" may also refer to situations where judging, calculating, computing, processing, deriving, investigating, looking up (e.g., searching in a table, database or other data structure), ascertaining, etc. are considered to be "determining".

[0377] In addition, "judgment (decision)" may also be a situation where receiving (for example, receiving information), sending (for example, sending information), input (input), output (output), accessing (for example, accessing data in a memory), etc. are regarded as making a "judgment (decision)".

[0378] In addition, "judgment (decision)" can also be regarded as a situation where resolving, selecting, choosing, establishing, comparing, etc. are regarded as a situation where "judgment (decision)" is performed. That is, "judgment (decision)" can also be regarded as a situation where some actions are regarded as a situation where "judgment (decision)" is performed.

[0379] In addition, "judge (decide)" can also be rewritten as "assuming (assuming)", "expecting (expecting)", "considering (considering)" and so on.

[0380] The “maximum transmit power” recorded in the present disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated maximum transmit power).

[0381] The terms "connected", "coupled", or all their variations used in this disclosure refer to all direct or indirect connections or combinations between two or more elements, and may include the situation where one or more intermediate elements exist between two elements that are "connected" or "coupled" to each other. The combination or connection between elements may be physical, logical, or a combination thereof. For example, "connection" may also be rewritten as "access".

[0382] In the present disclosure, when two elements are connected, it is possible to consider being "connected" or "combined" to each other using one or more wires, cables, printed electrical connections, etc., as well as being "connected" or "combined" to each other using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, light (both visible and invisible) region, etc. as several non-limiting and non-inclusive examples.

[0383] In the present disclosure, the term "A is different from B" may also mean "A and B are different from each other". In addition, the term may also mean "A and B are different from C, respectively". The terms "separate" and "combined" may also be interpreted in the same manner as "different".

[0384] When the terms “include,” “including,” and variations thereof are used in the present disclosure, these terms have an inclusive meaning, similar to the term “comprising.” Furthermore, the term “or” used in the present disclosure does not have an exclusive OR meaning.

[0385] In the present disclosure, when an article is added by translation like a, an, and the in English, for example, the present disclosure may also include a case where the noun following the article is in plural form.

[0386] In the present disclosure, "below", "less than", "above", "more than", "equal to", etc. can also be rephrased with each other. In addition, in the present disclosure, sentences meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can also be rephrased with each other, without being limited to the original degree, comparative degree, and superlative degree. In addition, in the present disclosure, sentences meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can also be rephrased with each other as expressions with "ith" attached, without being limited to the original degree, comparative degree, and superlative degree (for example, "highest" can also be rephrased with "i-th highest").

[0387] In the present disclosure, “of,” “for,” “regarding,” “related to,” “associated with,” etc. may also be replaced by each other.

[0388] The invention involved in the present disclosure is described in detail above, but it is obvious to those skilled in the art that the invention involved in the present disclosure is not limited to the embodiments described in the present disclosure. The invention involved in the present disclosure can be implemented as a modified and altered mode without departing from the gist and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is for the purpose of illustrative description and does not have any limiting meaning on the invention involved in the present disclosure.

Claims

1. A terminal having: a transmitting unit configured to transmit a report including one or more pieces of status information related to utilization of an output power higher than a nominal maximum output power corresponding to the band; and The control unit controls uplink transmission using the output power when the state information indicates that the use is possible.

2. The terminal according to claim 1, wherein: Each state information includes state information for each cell, state information for each activated cell, or state information for all activated cells.

3. The terminal according to claim 1, wherein: The status information indicates whether the adjustment to the nominal maximum output power is zero.

4. The terminal according to claim 1, wherein: The report may also include a power headroom report PHR.

5. A wireless communication method of a terminal, comprising: The step of sending a report including one or more status information regarding utilization of an output power higher than a nominal maximum output power corresponding to the band; and The step of controlling uplink transmission using the output power when the state information indicates that the use is possible.

6. A base station, comprising: a receiving unit receiving a report including one or more status information regarding utilization of an output power higher than a nominal maximum output power corresponding to a band; and The control unit controls uplink reception using the output power when the state information indicates that the use is possible.

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