Terminals, wireless communication methods, base stations and systems

Abstract

The present invention appropriately reports a PHR including a plurality of PHs. A terminal according to one aspect of the present disclosure comprises: a control unit for generating a medium access control (MAC) control element that includes two power headroom (PH) fields for one serving cell, and includes a PCMAX,f,c field relating to at least one of the two PH fields; and a transmission unit for transmitting the MAC control element.

Description

[Technical Field]

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

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

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

[0004] [Non-Patent Document 1] 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)”, April 2010 [Overview of the Initiative]

Problems to be Solved by the Invention

[0005] In a future wireless communication system (e.g., NR), a terminal (user terminal, User Equipment (UE)) transmits a Power Headroom Report (PHR) including information on the power headroom (Power Headroom (PH)) for each serving cell to the network. The network can utilize the PHR for the control of the uplink transmission power of the UE.

[0006] In NR, it is considered that one or more Transmission / Reception Points (TRP) (Multi TRP (MTRP)) perform DL transmission to the UE. Also, it is considered that the UE performs UL transmission to one or more TRP.

[0007] In a future wireless system (e.g., NR after Rel.17), Physical Uplink Shared Channel (PUSCH) repeated transmission of MTRP is considered. Also, when MTRP PUSCH is supported / configured / enabled and it is configured / enabled to report two PHs for two TRP, it is considered to include two PHRs in the PHR Medium Access Control Control Element (PHR MAC CE).

[0008] However, the current standard does not stipulate how to configure some fields when including two PHs in the PHR MAC CE. If appropriate PHR reporting is not performed, there is a risk of deterioration in communication throughput, communication quality, etc.

[0009] Therefore, the present disclosure provides a terminal and a wireless communication method capable of appropriately reporting a PHR including a plurality of PHs 、 Base station and system One of the purposes is to provide.

Means for Solving the Problem

[0010] The terminal according to one aspect of the present disclosure If you have multiple transmit / receive points (TRPs) and physical uplink sharing channels (PUSCH) repetitions, and two Power Headroom Reports (PHRs) are configured, For one serving cell, two Power Headroom (PH) fields and Of the two PH fields One common method used for calculation P CMAX,f,c A control unit that generates a Medium Access Control (MAC) control element including the field, and a transmission unit that transmits the MAC control element.

Effect of the Invention

[0011] According to one aspect of the present disclosure, a PHR including a plurality of PHs can be appropriately reported.

Brief Description of the Drawings

[0012] [[ID=三十]] [Figure 1] FIG. 1 is a diagram showing an example of a single-entry PHR MAC CE in Rel.16 NR. [Figure 2] FIG. 2 is a diagram showing an example of a multiple-entry PHR MAC CE in Rel.16 NR. [Figure 3] FIG. 3A is a diagram showing an example of a case assumed in Embodiment 2.1.4. FIG. 3B is a diagram showing an example of a case assumed in Embodiments 2.1.5 and 2.1.6. [Figure 4] FIG. 4A is a diagram showing an example of a case assumed in Embodiment 2.2.4. FIG. 4B is a diagram showing an example of a case assumed in Embodiments 2.2.5 and 2.2.6. [Figure 5] FIG. 5 is a diagram showing an example of a single-entry PHR MAC CE in the first to third embodiments. [Figure 6] FIG. 6 is a diagram showing an example of a multiple-entry PHR MAC CE in the first to third embodiments. [Figure 7]Figure 7 shows an example of a schematic configuration of a wireless communication system according to one embodiment. [Figure 8] Figure 8 shows an example of the configuration of a base station according to one embodiment. [Figure 9] Figure 9 shows an example of the configuration of a user terminal according to one embodiment. [Figure 10] Figure 10 shows an example of the hardware configuration of a base station and a user terminal according to one embodiment. [Figure 11] Figure 11 shows an example of a vehicle according to one embodiment. [Modes for carrying out the invention]

[0013] (PHR) In future wireless communication systems (e.g., NR), the UE will send a Power Headroom Report (PHR) to the network, which will contain information about the power margin (Power Headroom (PH)) per serving cell. The network can then use the PHR to control the UE's uplink transmit power.

[0014] PHRs may also be transmitted via MAC (Medium Access Control) signaling using PUSCH (Physical Uplink Shared Channel). For example, PHRs are notified using a PHR MAC CE (Control Element) contained within a MAC PDU (Protocol Data Unit).

[0015] NR supports single-entry PHR MAC CEs for primary cells (PCells).

[0016] Figure 1 shows an example of a single-entry PHR MAC CE in Rel.16 NR. This MAC CE consists of 2 octets (=16 bits). In Figure 1, each 'R' represents a 1-bit reserved field, which is set to a value such as '0'.

[0017] In Figure 1, 'PH(Type 1,PCell)' represents a 6-bit field indicating an index for the Type 1 PH of the Primary Cell (PCell). This index for PH is associated with a specific PH value (in decibels (dB)) (or level).

[0018] For example, Type 1 PH may be PH when PUSCH is taken into consideration (e.g., only PUSCH's power is taken into consideration), Type 2 PH may be PH when PUCCH is taken into consideration (e.g., both PUSCH and PUCCH's power is taken into consideration), and Type 3 PH may be PH when the Sounding Reference Signal (SRS) is taken into consideration (e.g., both PUSCH and SRS's power is taken into consideration).

[0019] Figure 1'P CMAX,f,c ' indicates a 6-bit field, and P used in the calculation of the PH field above CMAX,f,c This shows an index related to the P. CMAX,f,c The index for this is associated with a specific UE transmit power level (dB). CMAX,f,c This may be called the maximum transmit power (maximum allowable transmit power) set for the UE for the serving cell c of carrier f. Hereinafter, P CMAX,f,c is simply P CMAX It is also written as PCMAX, etc.

[0020] In Figure 1, 'P' may be a field relating to Power Management Maximum Power Reduction (P-MPR) or Maximum Permitted UE Output Power Reduction for serving cell c, or a field relating to Maximum Permitted Exposure (MPE). In Figure 1, 'MPE' may be a field relating to MPE. Fields such as 'P' and 'MPE' may be replaced with 'R' fields depending on the settings using higher-layer signaling to the UE.

[0021] The 'P' field is set to 0 if the P-MPR value applied to satisfy the MPE request is less than a specific P-MPR value (e.g., P-MPR_00) when the FR2 MPE reporting (upper layer parameter mpe-Reporting-FR2) is set and the serving cell is operating in FR2, and 1 otherwise.

[0022] Additionally, the 'P' field may indicate whether MPE reporting for FR2 is not configured, or whether power back-off is applied for power management if the serving cell operates on FR1. If power back-off is not applied for power management, the corresponding P field may be displayed. CMAX If the fields were supposed to have different values, the 'P' field will be set to 1.

[0023] The 'MPE' field may indicate the power backoff applied to satisfy the MPE requirement when FR2 MPE reporting (upper layer parameter mpe-Reporting-FR2) is set, the serving cell operates in FR2, and the 'P' field is set to 1. This field may indicate an index corresponding to the measured P-MPR value (e.g., in dB).

[0024] If the MPE report of FR2 is not set, or the serving cell is operating in FR1, or the 'P' field is set to 0, an R field (bits of R) may exist instead of the 'MPE' field.

[0025] In NR, multiple entry PHR MAC CE (multiple entry PHR MAC CE) containing multiple data similar to the above-mentioned single entry (2 octets) is also supported. The multiple entry PHR MAC CE may include a PH field for a primary secondary cell (PSCell), a secondary cell (SCell), etc. Note that the PCell and PSCell may also be called special cells (SpCell).

[0026] Figure 2 is a diagram showing an example of a multiple entry PHR MAC CE in Rel.16 NR. For fields similar to those in Figure 1, the description will not be repeated. The 6-bit field including the text 'PH' in Figure 2 indicates the PH field for the corresponding type (e.g., the above-mentioned types 1-3) and cell.

[0027] Note that the existence of the type 2 PH field for the SpCell of other MAC entities may be set by the upper layer parameter phr-Type2OtherCell being true.

[0028] The 6-bit field including the text 'P' in Figure CMAX,f,c ' in Figure 2 is the P field that indicates the P used in the calculation of the previous PH field. CMAX,f,c The P field that indicates the P used in the calculation of the previous PH field. CMAX,f,c The 'C' in Figure 2 i' is a field that indicates whether the PH field of the serving cell corresponding to serving cell index i is included in the PHR. Note that Figure 2 shows the case where the maximum serving cell index is less than 8, and if it is 8 or greater, the MAC CE can show serving cells up to i=31, for example. i The field may include '.

[0029] Note that the numbers and P are attached to the "serving cell" in the PH field. CMAX,f,c The number assigned to the field does not necessarily represent the serving cell index; it may simply represent the position of the value within the MAC CE.

[0030] In Figure 2, 'V' indicates whether the PH value corresponding to the immediately following PH field is based on real transmission (V=0) or reference format (V=1). PH based on reference format may also be called virtual PH. Note that if V=1, the corresponding 'P CMAX,c Fields such as 'Field' and 'MPE' field may be omitted.

[0031] The network may send PHR configuration information to the UE regarding the conditions that trigger the PHR. This PHR configuration information may include, for example, a prohibit timer, a periodic timer, and a path loss change threshold. Higher-layer signaling may be used for this notification. The UE triggers the PHR if the PHR trigger conditions are met.

[0032] In this disclosure, the higher-layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof.

[0033] MAC signaling may use, for example, MAC Control Elements (MAC CEs) or MAC Protocol Data Units (PDUs). Broadcast information may also include, for example, Master Information Blocks (MIBs), System Information Blocks (SIBs), Remaining Minimum System Information (RMSIs), or Other System Information (OSIs).

[0034] (Multi-TRP) In NR, it is being considered that one or more transmission / reception points (TRPs) (multi-TRPs (M-TRPs)) will perform DL transmissions to the UE using one or more panels (multi-panels). Furthermore, it is being considered that the UE will perform UL transmissions to one or more TRPs.

[0035] Incidentally, in future wireless systems (e.g., NR Rel.17 and later), it is being considered to use a single DCI for performing multiple TRP push repetitions (MTRP push repetitions) to indicate multiple (e.g., two) SRS resource identifiers (SRIs) / transmitted precoding matrix indicators (TPMIs).

[0036] For example, in the case of codebook-based transmission, the UE may determine the precoder for push transmission based on the SRI, Transmitted Rank Indicator (TRI), and TPMI. In the case of non-codebook-based transmission, the UE may determine the precoder for push transmission based on the SRI. The SRI may be specified to the UE by DCI or provided by higher-layer parameters.

[0037] If a single DCI points to multiple SRI / TPMIs, the following options 1 or 2 are possible: Option 1: Use a field to indicate multiple (e.g., two) SRI / TPMI values ​​for multiple (e.g., two) TRPs. Option 2: A field is designated to indicate one SRI / TPMI, and that field is set with code points corresponding to multiple (e.g., two) SRI / TPMI values.

[0038] In Option 1, each code point of multiple SRI / TPMI fields may correspond to a single TPMI value. The correspondence (association) between SRI / TPMI fields and SRI / TPMI values ​​may be defined in advance in the specification. Alternatively, the correspondence (association) between SRI / TPMI fields and SRI / TPMI values ​​may use the correspondences defined up to Rel. 16, or the correspondences defined in Rel. 17 or later. The correspondence between SRI / TPMI fields and SRI / TPMI values ​​may differ for each of the multiple SRI / TPMI fields.

[0039] In Option 2, a code point that points to one SRI / TPMI field may correspond to multiple (e.g., two) SRI / TPMI values. The correspondence (association) between SRI / TPMI fields and SRI / TPMI values ​​may be defined in advance in the specification, or it may be notified / configured / activated by RRC signaling / MAC CE.

[0040] Furthermore, it is being considered that repeated push transmissions using a single push transmission / single TRP (STRP) and repeated push transmissions using multiple TRPs (MTRP) will be dynamically instructed / switched by DCI. This dynamic switching may utilize specific fields included in DCI as defined up to Rel.16, or specific fields as defined in Rel.17 and later (for example, fields for specifying STRP or MTRP operation).

[0041] Furthermore, “dynamic switch” in this disclosure may mean “a switch that uses at least one of upper-layer signaling and physical-layer signaling.” Also, “switch” in this disclosure may be interpreted as switching, change, changing, applying, directing, setting, etc.

[0042] Incidentally, if M-TRP PUSCH is supported / configured / enabled and configured / enabled to report two PHRs for two TRPs, it is being considered to include two PHRs (the first PHR and the second PHR) in the PHR MAC CE. Reporting two PHRs for two TRPs may also be configured for the UE by a higher-layer parameter (RRC parameter).

[0043] Here, the first PHR may be reported as in Rel. 15 / 16. The second PHR may be a PHR of a different TRP than the first PHR. The second PHR may be reported as an actual PHR or as a hypothetical PHR.

[0044] Actual PHR is PHR based on actual push transmission and may also be called real PHR. Actual PHR may be calculated based on power control parameters for actual push transmission.

[0045] A virtual PHR is a PHR that does not depend on an actual push transmission (it is based on a reference push transmission) and may also be called a reference PHR or a PHR that conforms to a reference format. The virtual PHR may be calculated based on default power control parameters already specified in Rel. 15 / 16 NR, or it may be calculated based on new default power control parameters.

[0046] In this disclosure, the power control parameter is P CMAX,f,c The parameters may be at least one of the following: Maximum Power Reduction (MPR), P-MPR, Additional Maximum Power Reduction (Additional MPR (A-MPR)), ΔTc, P0, alpha, Pathloss Reference Signal (PL-RS), and Closed-Loop Index (l). For example, in Rel.16 NR, the default power control parameters are MPR=0[dB], A-MPR=0[dB], P-MPR=0[dB], ΔT C =0[dB], and P0 and alpha are P 0_NOMIANAL_PUSCH、f、c (0) is obtained using the upper layer parameter p0-PUSCH-AlphaSetId=0, and the downlink path loss estimation is obtained using the upper layer parameter push-PathlossReferenceRS-Id=0, where l=0.

[0047] However, under the current standard, when including two PHRs in a PHR MAC CE, the above PCMAX The system does not specify how to configure fields, P fields, MPE fields, etc. If proper PHR reporting is not performed, communication throughput, communication quality, etc. may deteriorate.

[0048] Therefore, the inventors conceived a method for appropriately reporting PHRs containing multiple pH levels.

[0049] The embodiments of this disclosure will be described in detail below with reference to the drawings. Each wireless communication method according to the embodiments may be applied individually or in combination.

[0050] In this disclosure, "A / B" and "at least one of A and B" may be interpreted as mutually exclusive.

[0051] In this disclosure, the terms activate, deactivate, indicate, select, configure, update, determine, etc., may be interpreted interchangeably.

[0052] In this disclosure, RRC, RRC parameters, RRC messages, RRC signaling, upper layer parameters, information elements (IE), and settings may be interpreted interchangeably. In this disclosure, MAC CE, update commands, and activation / deactivation commands may be interpreted interchangeably. In this disclosure, support, control, controllable, operate, and operable may be interpreted interchangeably.

[0053] In this disclosure, the following terms are used: panel, beam, panel group, beam group, precoder, Uplink (UL) transmit entity, TRP, spatial relation information (SRI), spatial relation, SRS resource identifier (SRI), SRS resource, control resource set (CONTRO RESource SET (CORESET)), Physical Downlink Shared Channel (PDSCH), codeword, base station, predetermined antenna port (e.g., Demodulation Reference Signal (DMRS) port), predetermined antenna port group (e.g., DMRS port group), predetermined group (e.g., Code Division Multiplexing (CDM) group, predetermined reference signal group, CORESET group), predetermined resource (e.g., predetermined reference signal resource), predetermined resource set (e.g., predetermined reference signal resource set), CORESET pool, PUCCH group (PUCCH resource group), spatial relation group, downlink TCI state (DL TCI state), uplink TCI state (UL The terms TCI state, unified TCI state, common TCI state, QCL, and QCL assumption may be interchangeable.

[0054] Furthermore, the TCI state Identifier (ID) and the TCI state may be interpreted as interchangeable. The TCI state and TCI may also be interpreted as interchangeable.

[0055] In this disclosure, the terms index, ID, indicator, and resource ID may be interpreted interchangeably. In this disclosure, the terms sequence, list, set, group, cluster, subset, etc., may be interpreted interchangeably.

[0056] In this disclosure, TRP index, CORESET pool index (CORESETPoolIndex), pool index, group index, etc., may be interpreted interchangeably.

[0057] In this disclosure, a single PDCCH(DCI) may be referred to as a PDCCH(DCI) of a first scheduling type (e.g., scheduling type A (or type 1)). A multi-PDCCH(DCI) may be referred to as a PDCCH(DCI) of a second scheduling type (e.g., scheduling type B (or type 2)).

[0058] In this disclosure, for a single DCI, the i-th TRP (TRP#i) may mean the i-th TCI state, the i-th CDM group, etc. (i is an integer). For a multi-DCI, the i-th TRP (TRP#i) may mean the CORESET corresponding to CORESET pool index = i, the i-th TCI state, the i-th CDM group, etc. (i is an integer).

[0059] In this disclosure, multi-TRP (MTRP, M-TRP), multi-TRP system, multi-TRP transmission, and multi-PDSCH may be interpreted as mutually exclusive.

[0060] In this disclosure, single DCI (sDCI), single PDCCH, multi-TRP system based on single DCI, sDCI-based MTRP, scheduling multiple PUSCHs (corresponding to different SRIs) by one DCI, sDCI-based MTRP transmission, and activating two TCI states on at least one TCI code point may be interpreted as mutually exclusive.

[0061] In this disclosure, the terms multi-DCI (mDCI), multi-PDCCH, multi-TRP system based on multi-DCI, mDCI-based MTRP, mDCI-based MTRP transmission, use of multi-DCI for MTRP, scheduling multiple PUSCHs (corresponding to different SRIs) using two DCIs, and setting two CORESET pool indices or CORESET pool index = 1 (or one or more values) may be interpreted as mutually exclusive.

[0062] The repetitions in this disclosure may be interpreted as MTRP-based repetitions, Rel.17 repetitions, repetitions applying different spatial relationships, repetitive PUSCH, repetitive PUCCH, repetitive transmissions, etc. Furthermore, the repetitive transmissions in the following embodiments may correspond to at least one of repetitive transmission type A, repetitive transmission type B, and other repetitive transmission types.

[0063] In addition, in repeated pushes, the same codeword / transport block may be transmitted in each push (each repeat). Repeated pushes may be interpreted as multiple pushes having the same content (e.g., data / codeword / transport block).

[0064] In this disclosure, the first TRP and the second TRP may be interpreted as the first PUSCH and the second PUSCH, the first PUSCH transmission opportunity and the second PUSCH transmission opportunity, the first SRI and the second SRI, and so on.

[0065] In this disclosure, the MTRP PUSCH iteration may be interpreted as two PUSCH iterations to two TRPs, two PUSCH iterations using two SRIs, two PUSCH iterations using two sets of power control parameters (the power control parameters will be described later), and so on.

[0066] In this disclosure, a repetition of a STRP PUSCH may mean a repetition of multiple PUSCH transmissions transmitted using one (same) SRI / power control parameter set / beam / precoder. A single transmission may mean a PUSCH transmission transmitted using one SRI / power control parameter set / beam / precoder.

[0067] Note that repeated push / push transmissions to TRP1 may also mean repeated push / push transmissions using the first SRI (or SRI field) / first power control parameter set.

[0068] Furthermore, repeated push / push transmissions to TRP2 may also mean repeated push / push transmissions using a second SRI (or SRI field) / second power control parameter set.

[0069] In the following embodiments, repeated transmission of PUSCH using multiple TRPs may be interpreted as M-TRP PUSCH, MTRP PUSCH repetition, PUSCH transmission using multiple TRPs, repeated transmission of PUSCH for multiple TRPs, PUSCH across multiple TRPs, repeated PUSCH across multiple TRPs, simply repeated PUSCH, repeated transmission, multiple PUSCH transmissions, PUSCH transmission using multiple SRIs, M-TRP PUSCH, etc.

[0070] Furthermore, a push transmission using a single TRP may also be called S-TRP push, STRP push repetition, push transmission using a single TRP, repeated push transmission for a single TRP, push across a single TRP, repeated push across a single TRP, single push transmission for a single TRP, simply a single push transmission, push transmission on a single TRP, push transmission using a single SRI, etc.

[0071] In each embodiment of this disclosure, UL transmissions are described using examples such as PUSCH transmissions for one or more TRPs using one DCI and codebook-based PUSCH transmissions. However, these embodiments may also be applied to non-codebook-based PUSCH transmissions, and the PUSCH transmissions to which each embodiment can be applied are not limited to these. When each embodiment of this disclosure is applied to a non-codebook-based PUSCH transmission, one or more SRS resources (SRIs) may be indicated to the UE by each SRI field. Furthermore, common or different embodiments may be applied to codebook-based PUSCH transmissions and non-codebook-based PUSCH transmissions. In addition, UL transmissions are not limited to PUSCH, and each embodiment of this disclosure can be appropriately applied to PUCCH (PUSCH may be read as PUCCH).

[0072] Furthermore, while the embodiments described in this disclosure primarily explain cases where there are two TRPs, SRIs, etc., these numbers may be three or more. In other words, "two" in this disclosure may be interpreted as "multiple".

[0073] In this disclosure, "the CORESET pool index is set to 0" may be interpreted as either "the CORESET pool index is set to 0 or the CORESET pool index is not set."

[0074] Furthermore, in this disclosure, the CORESET pool index, the PUSCH repeating index, and the upper layer index may be interpreted as interchangeable.

[0075] In this disclosure, "PHR," "PH," "PH field," and "PH value" may be interpreted interchangeably. Also, in this disclosure, "PH field" may be interpreted interchangeably with a PH field of a certain type (e.g., type 1 / 2 / 3 / X).

[0076] The embodiments described below assume, but are not limited to, that MTRP PUSCH repetition is enabled for the UE by higher-layer parameters. "Enabling MTRP PUSCH repetition" may also mean "configuring two codebook-based / non-codebook-based SRS resource sets."

[0077] In each embodiment, the PHR MAC CE has fields (P) for each of the multiple serving cells. CMAX Fields (such as P fields) may be included.

[0078] Furthermore, in the following embodiments, "P of the PH field (or for / corresponding to) P CMAX "Field / P-MPR value / Power back off" is "P for / corresponding to the PUSCH transmission of the corresponding PH field" CMAX These terms can be interpreted interchangeably as "Field / P-MPR value / Power backoff".

[0079] In this disclosure, P-MPR, P-MPR value, and power back-off may be interpreted interchangeably.

[0080] (Wireless communication method) <First Embodiment> The first embodiment is P in PHR MAC CE CMAX Regarding the field.

[0081] In the first embodiment, P corresponds to two PH fields of one serving cell CMAX A field may contain two P CMAX Of the fields, the first P CMAX The field is P used to calculate the first PH field of the serving cell mentioned above. CMAX The value of the second P CMAX The field is P, which is used to calculate the second PH field of the serving cell mentioned above. CMAX You may also indicate the value.

[0082] In the first embodiment, P corresponds to two PH fields of one serving cell CMAX The field may contain only one element. CMAX The field may represent at least one of the following: • P used in calculating the first PH field of the above serving cell CMAX The value, • P used in calculating the second PH field of the serving cell mentioned above CMAX The value, P used in calculating the first and second PH fields of the serving cell described above CMAX The value of (in this case, a common P is used to calculate the first PH field and the second PH field) CMAX (The value of may be used.) • P used to calculate the pH field corresponding to the actual pH of the serving cell mentioned above CMAX The value of (assuming the number of PH fields corresponding to the actual PH of the serving cell above is 1).

[0083] According to the first embodiment described above, even if the UE includes two PH fields for one serving cell in the PHR report, the P corresponding to the PH field CMAX The field can be appropriately included in the PHR report.

[0084] <Second Embodiment> The second embodiment relates to the P field in a PHR MAC CE.

[0085] The second embodiment can be broadly divided into the following two cases: • Embodiment 2.1: When FR2 MPE reporting (upper layer parameter mpe-Reporting-FR2) is set and the serving cell operates in FR2, • Embodiment 2.2: When MPE reporting for FR2 is not configured, or when the serving cell operates in FR1.

[0086] [Embodiment 2.1] In Embodiment 2.1, the P-MPR value applied for (corresponding to) the first PH field of the serving cell is also simply referred to as the first P-MPR value, and the P-MPR value applied for (corresponding to) the second PH field of the serving cell is also simply referred to as the second P-MPR value.

[0087] In Embodiment 2.1, there may be two P fields corresponding to the two PH fields of a single serving cell. Of these two P fields, the first P field may indicate whether the first P-MPR value is less than a specific P-MPR value (e.g., P-MPR_00), and the second P field may indicate whether the second P-MPR value is less than a specific P-MPR value (e.g., P-MPR_00).

[0088] In Embodiment 2.1, the specific P-MPR values ​​for each P-field may be the same or different. The UE may determine information regarding a specific P-MPR value for a given P-field based on specific rules / UE capabilities, or it may be communicated using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels, or a combination thereof. In this disclosure, “specific P-MPR value” may be interpreted as “configured / defined threshold.”

[0089] In Embodiment 2.1, the P field corresponding to the two PH fields of a single serving cell may include only one. The P field may conform to at least one of the following: Embodiment 2.1.1: If the first P-MPR value is less than a specific P-MPR value, it is set to 0; otherwise, it is set to 1. Embodiment 2.1.2: The second P-MPR value is set to 0 if it is less than a specific P-MPR value, and to 1 otherwise. • Embodiment 2.1.3: The P-MPR value applied to the PH field corresponding to the actual PH of the serving cell (the number of PH fields corresponding to the actual PH of the serving cell is 1) is set to 0 if it is less than a specific P-MPR value, and to 1 otherwise. Embodiment 2.1.4: If both the first P-MPR value and the second P-MPR value are less than a specific P-MPR value, they are set to 0; otherwise, they are set to 1. Embodiment 2.1.5: If both the first P-MPR value and the second P-MPR value are less than a specific P-MPR value, they are set to 0; otherwise, they are set to 1. Embodiment 2.1.6: If one (or at least one) of the first P-MPR value and the second P-MPR value is smaller than a specific P-MPR value, it is set to 0; otherwise, it is set to 1.

[0090] In the above embodiment 2.1.4, only the cases in which both the first P-MPR value and the second P-MPR value are smaller than a specific P-MPR value, and the cases in which neither the first P-MPR value nor the second P-MPR value is smaller than a specific P-MPR value, may be considered (other cases may be assumed not to occur).

[0091] In the above embodiments 2.1.5 / 2.1.6, it may be assumed that there may be cases where one of the first P-MPR value and the second P-MPR value is smaller than a specific P-MPR value, and the other is not smaller than a specific P-MPR value (for example, these cases may be assumed to occur in addition to the cases assumed in embodiment 2.1.4).

[0092] Figure 3A shows an example of a case assumed in Embodiment 2.1.4. In this example, only cases are assumed where both the first PHR(PH) field and the second PHR(PH) field are less than a specific P-MPR value (e.g., P-MPR_00), or where both are greater than or equal to that specific P-MPR value.

[0093] Figure 3B shows an example of a case assumed in Embodiments 2.1.5 and 2.1.6. In this example, not only are there cases where both the first PHR(PH) field and the second PHR(PH) field are less than a specific P-MPR value (e.g., P-MPR_00), or where both are greater than or equal to that specific P-MPR value, but there are also cases where one is less than the specific P-MPR value and the other is greater than or equal to that specific P-MPR value.

[0094] [Embodiment 2.2] In Embodiment 2.2, the application of power back-off for power management for the first PH field of the serving cell is also referred to simply as "the first power back-off is applied," and the application of power back-off for power management for the second PH field of the serving cell is also referred to simply as "the second power back-off is applied."

[0095] In Embodiment 2.2, there may be two P fields corresponding to the two PH fields of a single serving cell. Of these two P fields, the first P field may indicate whether a first power back-off (e.g., P-MPR>0) is applied, and the second P field may indicate whether a second power back-off (e.g., P-MPR>0) is applied.

[0096] In Embodiment 2.2, the power backoff for each P field may be the same or different. The UE may determine information regarding the power backoff for a given P field based on specific rules / UE capabilities, or it may be communicated using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels, or a combination thereof. In this disclosure, "power backoff (e.g., P-MPR>0) is applied" means "if power backoff is not applied for power management, the corresponding P CMAXThese can be rephrased as, "The fields were supposed to have different values."

[0097] In Embodiment 2.2, the P field corresponding to the two PH fields of a single serving cell may include only one. The P field may conform to at least one of the following: • Embodiment 2.2.1: Set to 1 if the first power back-off is applied, and to 0 otherwise. • Embodiment 2.2.2: Set to 1 if the second power back-off is applied, and to 0 otherwise. • Embodiment 2.2.3: Set to 1 if power back-off (e.g., P-MPR>0) is applied for power management of the PH field corresponding to the actual PH of the serving cell (the number of PH fields corresponding to the actual PH of the serving cell is 1), and set to 0 otherwise. Embodiment 2.2.4: Set to 1 if both the first power back-off and the second power back-off are applied, and to 0 otherwise. Embodiment 2.2.5: Set to 1 if both the first power back-off and the second power back-off are applied, and to 0 otherwise. Embodiment 2.2.6: Set to 1 if either (or at least one) of the first power back-off and the second power back-off is applied, and set to 0 otherwise.

[0098] In the above embodiment 2.2.4, only the cases in which both the first power back-off and the second power back-off are applied, and the cases in which neither the first power back-off nor the second power back-off is applied, may be considered (it may be assumed that other cases do not occur).

[0099] In the above embodiments 2.2.5 / 2.2.6, it may be assumed that there may be cases in which one of the first power back-off and the second power back-off is applied and the other is not applied (for example, these cases may be assumed to occur in addition to the cases assumed in embodiment 2.2.4).

[0100] Figure 4A shows an example of a case assumed in Embodiment 2.2.4. In this example, only the case in which P-MPR (power back-off) is applied to both the first PHR(PH) field and the second PHR(PH) field, and the case in which P-MPR (power back-off) is not applied to either are assumed.

[0101] Figure 4B shows an example of a case assumed in embodiments 2.2.5 and 2.2.6. In this example, not only are cases where P-MPR is applied to both the first PHR(PH) field and the second PHR(PH) field, and cases where P-MPR is not applied to either, but also cases where P-MPR is applied to one but not the other are assumed.

[0102] In addition, "set to 0" and "set to 1" in the second embodiment may be interpreted as mutually exclusive.

[0103] According to the second embodiment described above, even if the UE includes two PH fields for a single serving cell in the PHR report, it can appropriately include the P field corresponding to the PH field in the PHR report.

[0104] <Third Embodiment> A third embodiment relates to the MPE field in a PHR MAC CE.

[0105] In the third embodiment, the power backoff applied to satisfy the MPE requirement for (corresponding to) the first PH field of the serving cell is also simply referred to as the first power backoff, and the power backoff applied to satisfy the MPE requirement for (corresponding to) the second PH field of the serving cell is also simply referred to as the second power backoff. The MPE field may represent an index corresponding to the measured P-MPR value (e.g., in dB).

[0106] In a third embodiment, if the FR2 MPE reporting (e.g., upper layer parameter mpe-Reporting-FR2) is set, a serving cell operates in FR2, and at least one P field corresponding to the serving cell is set to 1, then there may be two MPE fields corresponding to the two PH fields of a serving cell. Of these two MPE fields, the first MPE field may indicate a first power backoff, and the second MPE field may indicate a second power backoff.

[0107] In the third embodiment, if the FR2 MPE reporting (e.g., upper layer parameter mpe-Reporting-FR2) is set, and the serving cell operates in FR2, and at least one P field corresponding to the serving cell is set to 1, then the MPE field corresponding to the two PH fields of a serving cell may include only one. CMAX The field may represent at least one of the following: • First power back-off, • Second power back-off, • First power backoff and second power backoff (in this case, a common power backoff value may be used to calculate the first PH field and the second PH field), • Power backoff applied to satisfy the MPE requirement for the PH field corresponding to the actual PH of the above serving cell (if the number of PH fields corresponding to the actual PH of the above serving cell is 1).

[0108] In the third embodiment, the phrase "the MPE reporting for FR2 (e.g., the upper layer parameter mpe-Reporting-FR2) is set and the serving cell operates in FR2" may be replaced with "the MPE reporting for FR2 is not set or the serving cell operates in FR1".

[0109] According to the third embodiment described above, even if the UE includes two PH fields for a single serving cell in the PHR report, it can appropriately include the MPE field corresponding to the PH field in the said PHR report.

[0110] <Specific examples of PHR MAC CE in the first to third embodiments> The PHR MAC CE in the first to third embodiments may be a single-entry PHR MAC CE or a multiple-entry PHR MAC CE.

[0111] Figure 5 shows an example of a single-entry PHR MAC CE in the first to third embodiments. The differences from Figure 1 will be explained, and the same points will not be repeated.

[0112] PH_1 and PH_2 correspond to the first PH field and the second PH field, respectively, and may represent, for example, the PH for TRP1 and the PH for TRP2. In addition, “_1” and “_2” attached to other fields indicate that the field corresponds to the first PH field and the second PH field, respectively.

[0113] For example, P_1 and P_2 correspond to the first and second P fields of the second embodiment, and MPE_1 and MPE_2 correspond to the first and second MPE fields of the third embodiment, PCMAX _1 and P CMAX _2 is the first and second P of the first embodiment. CMAX It may be a field. Note that "_1" and "_2" do not need to be written, or they may be written differently.

[0114] The V field indicates whether the following PH field is an actual PHR or a virtual PHR. For example, V=1 may mean that the following PHR field is a virtual PHR, and V=0 may mean that the following PHR field is an actual PHR (and vice versa).

[0115] Figure 6 shows an example of a multiple-entry PHR MAC CE in the first to third embodiments. The differences from Figure 2 are explained, and the same points are not repeated. Similarly, fields that were explained in Figure 5 are not repeated.

[0116] PH_j,1 and PH_j,2 correspond to the first and second PH fields, respectively, and may represent, for example, the PH for TRP1 and the PH for TRP2. Furthermore, “_j,1” and “_j,2” attached to other fields indicate that the field corresponds to the first and second PH fields, respectively. Note that “_j,1” and “_j,2” are optional, and alternative notations may be used.

[0117] In Figure 6, X i The field corresponds to a field indicating that one or two PHRs are reported, C i Indicates whether an octet (a sequence of 8 bits shown in the diagram) containing PHR_j,2 corresponding to the field exists. For example, X i The fact that =1 exists is X i =0 can also mean that it does not exist (and vice versa).

[0118] The X0 field may also correspond to a field indicating that one or two PHRs are reported for a serving cell index of 0 (or PCell or SpCell). Furthermore, the C0 field may be the R field.

[0119] Note X i Field (X i The octet containing the field does not need to be included in the PHR MAC CE. If the number of PHs to be reported for each serving cell is set, or if it is set / enabled to report two PHRs for two TRPs, then X i This is because it is not necessary to include the field.

[0120] <Other> At least one of the embodiments described above may apply when DCI specifies STRP PUSCH repetition or single transmission (in other words, PUSCH transmission without repetition) for a serving cell, or when DCI specifies MTRP PUSCH repetition for a serving cell.

[0121] In each embodiment, "reporting a PHR" may mean "reporting a PHR for a serving cell designated by DCI as a STRP PUSCH repetition / single transmission / MTRP PUSCH repetition." In this disclosure, the reported PHR may be a Type 1 PH or another type of PH.

[0122] Furthermore, the first PH (PH indicated by the first PH field) and the second PH (PH indicated by the second PH field) appearing in each embodiment may fall under at least one of the following cases: Case A: The first pH is the actual pH, and the second pH is the actual pH. Case B: The first pH is the actual pH, and the second pH is a hypothetical pH. Case C: The first PH is a virtual PH, and the second PH is a virtual PH. Case D: The first pH is a hypothetical pH, and the second pH is the actual pH.

[0123] In this disclosure, a UE may have multiple panels (UL panels, panels usable for UL transmission). In this disclosure, panels, UE antenna groups, UE antenna port groups, UE capability values, and UE capability value sets may be interchangeable. Furthermore, multiple panels may support different numbers of antenna ports, different numbers of SRS ports, different numbers of layers, different numbers of beams, different transmit power, and different Equivalent Isotopically Radiated Power (EIRP) (in other words, different panels may transmit / receive with different parameters (elements)).

[0124] UEs that support multiple panels and UEs that do not support multiple panels may be subject to different options (modes / configurations / controls) of the first / second / third embodiments described above.

[0125] Furthermore, different options (modes / configurations / controls) of the first / second / third embodiments described above may be applied when two PHRs / two TRPs / two beams (SRS resource sets / SRIs / SRI fields) of MTRP PUSCH repetition relate to the same panel, or when they relate to different panels. For example, a PHR MAC CE reporting two PH fields for the same panel and a PHR MAC CE reporting two PH fields for different panels may have different configurations.

[0126] Furthermore, at least one of the embodiments described above may apply only to a UE that has reported a specific UE capability or that supports such a specific UE capability.

[0127] The specific UE capability may represent at least one of the following: Whether or not it supports multi-TRP push repetition. • Two pH / P (per serving cell) CMAX Whether or not to support the / P / MPE field (including PHR MAC CE).

[0128] Furthermore, the specific UE capabilities mentioned above may be determined on a per-serving-cell basis.

[0129] Furthermore, at least one of the embodiments described above may be applied if the UE is configured by upper-layer signaling to provide specific information related to the embodiments described above (if not configured, the operation of Rel. 15 / 16, for example, is applied). For example, such specific information may be information indicating that PUSCH repetitions of multiple TRPs are enabled, multiple PH / P CMAX This may include information indicating that the / P / MPE field (including the PHR MAC CE) is enabled / configured, or any RRC parameters for a specific release (e.g., Rel.17). Furthermore, the UE may use higher-layer parameters to determine which of the above embodiments / cases / conditions the PHR is controlled on.

[0130] Furthermore, the above-described embodiments may also be applied when PUSCH repeating type A / type B is used.

[0131] Furthermore, the above-described embodiments may be applied when a specific mapping pattern for MTRP repetition (such as cyclic, sequential, or half-half) is used.

[0132] (Wireless communication system) The configuration of a wireless communication system according to one embodiment of this disclosure will be described below. In this wireless communication system, communication is performed using any or a combination thereof of the wireless communication methods according to the above embodiments of this disclosure.

[0133] Figure 7 shows an example of a schematic configuration of a wireless communication system according to one embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc., as specified by the Third Generation Partnership Project (3GPP).

[0134] Furthermore, the wireless communication system 1 may support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), and so on.

[0135] In EN-DC, the LTE (E-UTRA) base station (eNB) is the Master Node (MN), and the NR base station (gNB) is the Secondary Node (SN). In NE-DC, the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.

[0136] The wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity where both MN and SN are NR base stations (gNB) (NR-NR Dual Connectivity (NN-DC))).

[0137] The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with relatively wide coverage, and base stations 12 (12a-12c) located within the macrocell C1 that form a small cell C2 that is narrower than the macrocell C1. User terminals 20 may be located within at least one cell. The arrangement and number of each cell and user terminal 20 are not limited to the configuration shown in the figure. Hereinafter, when base stations 11 and 12 are not distinguished, they will be collectively referred to as base station 10.

[0138] The user terminal 20 may be connected to at least one of the multiple base stations 10. The user terminal 20 may utilize at least one of Carrier Aggregation (CA) using multiple Component Carriers (CC) and Dual Connectivity (DC).

[0139] Each CC may be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). A macrocell C1 may be included in FR1, and a small cell C2 may be included in FR2. For example, FR1 may be a frequency band of 6 GHz or less (sub-6 GHz), and FR2 may be a frequency band above 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may fall in a frequency band higher than FR2.

[0140] Furthermore, the user terminal 20 may communicate using at least one of the following methods at each CC: Time Division Duplex (TDD) and Frequency Division Duplex (FDD).

[0141] Multiple base stations 10 may be connected by wire (e.g., optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.) or wireless (e.g., NR communication). For example, if NR communication is used as a backhaul between base stations 11 and 12, base station 11, which is the upstream station, may be called an Integrated Access Backhaul (IAB) donor, and base station 12, which is the relay station, may be called an IAB node.

[0142] Base station 10 may be connected to the core network 30 via other base stations 10 or directly. The core network 30 may include at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), etc.

[0143] The user terminal 20 may be a terminal that supports at least one of the following communication methods: LTE, LTE-A, 5G, etc.

[0144] In the wireless communication system 1, an orthogonal frequency division multiplexing (OFDM)-based wireless access scheme may be used. For example, Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), etc., may be used in at least one of the downlink (DL) and uplink (UL).

[0145] The wireless access method may also be called a waveform. In wireless communication system 1, other wireless access methods (for example, other single-carrier transmission methods, other multi-carrier transmission methods) may be used for the UL and DL wireless access methods.

[0146] In the wireless communication system 1, a Physical Downlink Shared Channel (PDSCH), a Broadcast Channel (PBCH), or a Physical Downlink Control Channel (PDCCH) may be used as the downlink channel, shared by each user terminal 20.

[0147] Furthermore, in the wireless communication system 1, the uplink channel may include a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a Physical Random Access Channel (PRACH), or the like, all of which are shared by each user terminal 20.

[0148] User data, higher-layer control information, and System Information Blocks (SIBs) are transmitted via PDSCH. User data and higher-layer control information may also be transmitted via PUSCH. Furthermore, Master Information Blocks (MIBs) may be transmitted via PBCH.

[0149] Lower-layer control information may be transmitted by PDCCH. The lower-layer control information may include, for example, Downlink Control Information (DCI) which includes scheduling information for at least one of PDSCH and PUSCH.

[0150] Furthermore, the DCI that schedules PDSCH may be called a DL assignment or DL ​​DCI, and the DCI that schedules PUSCH may be called a UL grant or UL DCI. Furthermore, PDSCH may be interpreted as DL data, and PUSCH may be interpreted as UL data.

[0151] PDCCH detection may utilize a Control Resource Set (CORESET) and a search space. A CORESET corresponds to the resources used to search for DCIs. A search space corresponds to the search area and search method for PDCCH candidates. A single CORESET may be associated with one or more search spaces. The UE may monitor CORESETs associated with a particular search space based on the search space configuration.

[0152] A single search space may correspond to one or more PDCCH candidates corresponding to aggregation levels. One or more search spaces may be referred to as a search space set. In this disclosure, "search space," "search space set," "search space configuration," "search space set configuration," "CORESET," and "CORESET configuration" may be interpreted interchangeably.

[0153] PUCCH may transmit uplink control information (UCI) which includes at least one of the following: channel state information (CSI), delivery acknowledgment (e.g., Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR). PRACH may transmit a random access preamble for establishing a connection with the cell.

[0154] In this disclosure, downlinks, uplinks, etc., may be expressed without the prefix "link." Also, the prefix "physical" may be omitted when describing various channels.

[0155] In the wireless communication system 1, a synchronization signal (SS), a downlink reference signal (DL-RS), etc., may be transmitted. In the wireless communication system 1, as DL-RS, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), etc., may be transmitted.

[0156] The synchronization signal may be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be called an SS / PBCH block, SS Block (SSB), etc. SS, SSB, etc., may also be called reference signals.

[0157] Furthermore, in the wireless communication system 1, the Uplink Reference Signal (UL-RS) may transmit the Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS), etc. The DMRS may also be called the User-Specific Reference Signal (UE-specific Reference Signal).

[0158] (base station) Figure 8 shows an example of the configuration of a base station according to one embodiment. The base station 10 includes a control unit 110, a transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140. Note that one or more of the control unit 110, transceiver unit 120, transceiver antenna 130, and transmission line interface 140 may be provided.

[0159] In this example, the functional blocks of the characteristic parts of this embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. Some of the processing of each part described below may be omitted.

[0160] The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, control circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0161] The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception, measurement, etc., using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140. The control unit 110 may generate data to be transmitted as signals, control information, sequences, etc., and transfer them to the transceiver unit 120. The control unit 110 may also perform call processing of communication channels (setting, releasing, etc.), status management of the base station 10, management of radio resources, etc.

[0162] The transmitting / receiving unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transmitting / receiving unit 120 can be composed of a transmitter / receiver, RF circuit, baseband circuit, filter, phase shifter, measurement circuit, transmitting / receiving circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0163] The transmitting / receiving unit 120 may be configured as an integrated transmitting / receiving unit, or it may be composed of a transmitting unit and a receiving unit. The transmitting unit may consist of a transmitting processing unit 1211 and an RF unit 122. The receiving unit may consist of a receiving processing unit 1212, an RF unit 122 and a measuring unit 123.

[0164] The transmitting and receiving antenna 130 can be composed of an antenna described based on common understanding in the art relating to this disclosure, such as an array antenna.

[0165] The transmitting / receiving unit 120 may transmit the downlink channel, synchronization signal, downlink reference signal, etc. The transmitting / receiving unit 120 may also receive the uplink channel, uplink reference signal, etc.

[0166] The transmitting / receiving unit 120 may form at least one of the transmitting beam and the receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0167] The transmitting / receiving unit 120 (transmission processing unit 1211) may perform processing on data and control information acquired from the control unit 110, for example, at the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer (e.g., RLC retransmission control), the Medium Access Control (MAC) layer (e.g., HARQ retransmission control), etc., to generate a bit sequence to be transmitted.

[0168] The transmitting / receiving unit 120 (transmission processing unit 1211) may perform transmission processing on the bit sequence to be transmitted, such as channel coding (which may include error correction coding), modulation, mapping, filtering, discrete Fourier transform (DFT) processing (if necessary), inverse fast Fourier transform (IFFT) processing, precoding, and digital-to-analog conversion, and output a baseband signal.

[0169] The transmitting / receiving unit 120 (RF unit 122) may perform modulation, filtering, amplification, etc., of the baseband signal to the radio frequency band and transmit the signal in the radio frequency band via the transmitting / receiving antenna 130.

[0170] On the other hand, the transmitting / receiving unit 120 (RF unit 122) may perform amplification, filtering, demodulation to a baseband signal, etc., on the radio frequency band signal received by the transmitting / receiving antenna 130.

[0171] The transmitting / receiving unit 120 (receiving processing unit 1212) may apply reception processing to the acquired baseband signal, such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, to acquire user data, etc.

[0172] The transmitting / receiving unit 120 (measurement unit 123) may perform measurements related to the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc., based on the received signal. The measurement unit 123 may also measure received power (e.g., Reference Signal Received Power (RSRP)), reception quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 110.

[0173] The transmission path interface 140 may send and receive signals (backhaul signaling) with devices included in the core network 30, other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0174] In this disclosure, the transmitting and receiving units of the base station 10 may consist of at least one of a transmitting / receiving unit 120, a transmitting / receiving antenna 130, and a transmission path interface 140.

[0175] The transmitting / receiving unit 120 may also send information (e.g., RRC parameters) to the user terminal 20 that configures the Medium Access Control (MAC) control element to include two Power Headroom (PH) fields for one serving cell.

[0176] The transmitting / receiving unit 120 transmits P related to at least one of the two PH fields. CMAX,f,c The MAC control element, including the field, may be received from the user terminal 20.

[0177] (User terminal) Figure 9 shows an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. Note that one or more of the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may be provided.

[0178] In this example, the functional blocks of the characteristic parts of this embodiment are mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processing of each part described below may be omitted.

[0179] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, control circuit, etc., as described based on common understanding in the technical field related to this disclosure.

[0180] The control unit 210 may control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc., using the transmitting / receiving unit 220 and the transmitting / receiving antenna 230. The control unit 210 may generate data to be transmitted as signals, control information, sequences, etc., and transfer them to the transmitting / receiving unit 220.

[0181] The transmitting / receiving unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transmitting / receiving unit 220 can be composed of a transmitter / receiver, RF circuit, baseband circuit, filter, phase shifter, measurement circuit, transmitting / receiving circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0182] The transmitting / receiving unit 220 may be configured as an integrated transmitting / receiving unit, or it may be composed of a transmitting unit and a receiving unit. The transmitting unit may consist of a transmitting processing unit 2211 and an RF unit 222. The receiving unit may consist of a receiving processing unit 2212, an RF unit 222 and a measuring unit 223.

[0183] The transmitting and receiving antenna 230 can be composed of an antenna described based on common understanding in the art relating to this disclosure, such as an array antenna.

[0184] The transmitting / receiving unit 220 may receive the downlink channel, synchronization signal, downlink reference signal, etc. The transmitting / receiving unit 220 may also transmit the uplink channel, uplink reference signal, etc.

[0185] The transmitting / receiving unit 220 may form at least one of the transmitting beam and the receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0186] The transmitting / receiving unit 220 (transmission processing unit 2211) may perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc., on data and control information acquired from the control unit 210, etc., to generate a bit sequence to be transmitted.

[0187] The transmitting / receiving unit 220 (transmission processing unit 2211) may perform transmission processing on the bit sequence to be transmitted, such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion, and output a baseband signal.

[0188] Whether or not to apply DFT processing may be based on the transform precoding settings. The transmitting / receiving unit 220 (transmission processing unit 2211) may perform DFT processing as part of the transmission process to transmit a channel (for example, PUSCH) using a DFT-s-OFDM waveform if transform precoding is enabled for that channel, or it may not perform DFT processing as part of the transmission process if transform precoding is not enabled for that channel.

[0189] The transmitting / receiving unit 220 (RF unit 222) may perform modulation, filtering, amplification, etc., of the baseband signal to the radio frequency band and transmit the signal in the radio frequency band via the transmitting / receiving antenna 230.

[0190] On the other hand, the transmitting / receiving unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, etc., on the radio frequency band signal received by the transmitting / receiving antenna 230.

[0191] The transmitting / receiving unit 220 (receiving processing unit 2212) may apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to acquire user data, etc.

[0192] The transmitting / receiving unit 220 (measuring unit 223) may perform measurements related to the received signal. For example, the measuring unit 223 may perform RRM measurement, CSI measurement, etc., based on the received signal. The measuring unit 223 may also measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

[0193] In this disclosure, the transmitting and receiving units of the user terminal 20 may consist of at least one of a transmitting / receiving unit 220 and a transmitting / receiving antenna 230.

[0194] Furthermore, the control unit 210 includes two Power Headroom (PH) fields for one serving cell, and P related to at least one of the two PH fields CMAX,f,c A Medium Access Control (MAC) control element containing a field may be generated.

[0195] The transmitting / receiving unit 220 may transmit the MAC control element.

[0196] (Hardware configuration) The block diagrams used in the description of the above embodiments show functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one device that is physically or logically coupled, or it may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wired or wireless connections). A functional block may also be realized by combining the above one device or the above multiple devices with software.

[0197] Here, functions include, but are not limited to, judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating (mapping), and assigning. For example, a functional block (configuration part) that enables transmission may be called a transmitting unit or transmitter. In all cases, as mentioned above, the method of implementation is not particularly limited.

[0198] For example, a base station, user terminal, etc. in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure. Figure 10 is a diagram showing an example of the hardware configuration of a base station and user terminal according to one embodiment. The base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0199] In this disclosure, terms such as apparatus, circuit, device, section, and unit are interchangeable. The hardware configuration of the base station 10 and the user terminal 20 may include one or more of the devices shown in the figure, or it may be configured to omit some of the devices.

[0200] For example, although only one processor 1001 is shown in the diagram, there may be multiple processors. Furthermore, processing may be performed by one processor, or by two or more processors simultaneously, sequentially, or by other means. Note that processor 1001 may be implemented using one or more chips.

[0201] Each function in the base station 10 and the user terminal 20 is realized, for example, by loading predetermined software (programs) onto hardware such as the processor 1001 and memory 1002, which allows the processor 1001 to perform calculations and control communication via the communication device 1004, or to control at least one of the reading and writing of data in the memory 1002 and storage 1003.

[0202] The processor 1001 controls the entire computer, for example, by running an operating system. The processor 1001 may be composed of a central processing unit (CPU) that includes interfaces with peripheral devices, control units, arithmetic units, registers, etc. For example, at least a part of the control unit 110 (210) and the transmitting / receiving unit 120 (220) described above may be implemented by the processor 1001.

[0203] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes accordingly. The program used is one that causes the computer to execute at least a part of the operations described in the above embodiment. For example, the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and other functional blocks may be implemented similarly.

[0204] Memory 1002 is a computer-readable recording medium and may consist of at least one of the following: Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), or other suitable storage medium. Memory 1002 may also be called a register, cache, or main memory. Memory 1002 can store executable programs (program code), software modules, etc., for carrying out a wireless communication method according to one embodiment of this disclosure.

[0205] Storage 1003 is a computer-readable recording medium and may consist of at least one of the following: a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disk (Compact Disc ROM (CD-ROM)), a digital multipurpose disk, a Blu-ray disk), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, stick, key drive), a magnetic stripe, a database, a server, or other suitable storage medium. Storage 1003 may also be called an auxiliary storage device.

[0206] The communication device 1004 is hardware (transmitting / receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, network controller, network card, communication module, etc. The communication device 1004 may be configured to include, for example, a high-frequency switch, duplexer, filter, frequency synthesizer, etc., in order to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmitting / receiving unit 120 (220), transmitting / receiving antenna 130 (230), etc., may be implemented by the communication device 1004. The transmitting / receiving unit 120 (220) may be implemented with physically or logically separated implementations of a transmitting unit 120a (220a) and a receiving unit 120b (220b).

[0207] The input device 1005 is an input device that accepts input from an external source (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.). The output device 1006 is an output device that outputs to an external source (e.g., a display, speaker, light-emitting diode (LED) lamp, etc.). The input device 1005 and the output device 1006 may be configured as an integrated unit (e.g., a touch panel).

[0208] Furthermore, each device, such as the processor 1001 and memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or different buses may be configured for each device.

[0209] Furthermore, the base station 10 and the user terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA), and some or all of each functional block may be implemented using such hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0210] (modified version) In addition, terms used in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, channel, symbol, and signal (signal or signaling) may be used interchangeably. Also, a signal may be a message. A reference signal may be abbreviated as RS and may be called a pilot, pilot signal, etc., depending on the applicable standard. Also, a component carrier (CC) may be called a cell, frequency carrier, carrier frequency, etc.

[0211] A wireless frame may consist of one or more periods (frames) in the time domain. Each of these periods (frames) constituting a wireless frame may be called a subframe. Furthermore, a subframe may consist of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0212] Here, the neuralelogy may be communication parameters applied to at least one of the transmission and reception of a signal or channel. The neuralelogy may be, for example, at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, specific filtering processes performed by the transceiver in the frequency domain, or specific windowing processes performed by the transceiver in the time domain.

[0213] A slot may consist of one or more symbols in the time domain (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols or Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols). Alternatively, a slot may be a time unit based on neurology.

[0214] A slot may include multiple mini-slots. Each mini-slot may consist of one or more symbols in the time domain. Mini-slots may also be called sub-slots. Mini-slots may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may be called a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may be called a PDSCH (PUSCH) mapping type B.

[0215] Wireless frames, subframes, slots, minislots, and symbols all represent units of time when transmitting a signal. Wireless frames, subframes, slots, minislots, and symbols may each be referred to by different names. Furthermore, the units of time such as frames, subframes, slots, minislots, and symbols in this disclosure may be interpreted as interchangeable.

[0216] For example, one subframe may be called TTI, multiple consecutive subframes may be called TTI, or one slot or one mini-slot may be called TTI. In other words, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. Note that the unit representing TTI may be called a slot, mini-slot, etc., instead of a subframe.

[0217] Here, TTI refers to, for example, the smallest unit of time for scheduling in wireless communication. For example, in an LTE system, the base station schedules each user terminal to allocate wireless resources (such as the frequency bandwidth and transmission power available to each user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0218] TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, code words, etc., or it may be a processing unit for scheduling, link adaptation, etc. Given a TTI, the actual time interval (e.g., number of symbols) to which the transport block, code block, code word, etc. are mapped may be shorter than the given TTI.

[0219] Furthermore, if one slot or one mini-slot is referred to as TTI, then one or more TTIs (i.e., one or more slots or one or more mini-slots) may constitute the minimum time unit of scheduling. In addition, the number of slots (number of mini-slots) that constitute the minimum time unit of scheduling may be controlled.

[0220] A TTI with a time length of 1 ms may also be called a normal TTI (TTI in 3GPP Rel.8-12), a long TTI, a normal subframe, a long subframe, or a slot. A TTI shorter than a normal TTI may also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini slot, a sub slot, or a slot.

[0221] Furthermore, long TTIs (e.g., normal TTIs, subframes, etc.) may be interpreted as TTIs with a time length exceeding 1 ms, and short TTIs (e.g., shortened TTIs, etc.) may be interpreted as TTIs with a TTI length less than that of a long TTI but 1 ms or more.

[0222] A Resource Block (RB) is a resource allocation unit in the time domain and frequency domain, and in the frequency domain, it may contain one or more consecutive subcarriers. The number of subcarriers in an RB may be the same regardless of the neurology, for example, 12. The number of subcarriers in an RB may be determined based on the neurology.

[0223] Furthermore, an RB may contain one or more symbols in the time domain and may have the length of one slot, one minislot, one subframe, or one TTI. Each TTI, subframe, etc., may consist of one or more resource blocks.

[0224] One or more RBs may also be called Physical RBs (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0225] Furthermore, a resource block may consist of one or more resource elements (REs). For example, one RE may be a radio resource area comprising one subcarrier and one symbol.

[0226] A Bandwidth Part (BWP) (also called a partial bandwidth) may represent a subset of consecutive common resource blocks (RBs) for a given neurology in a given carrier. Here, the common RBs may be identified by an index of the RBs relative to the carrier's common reference point. PRBs may be defined and numbered within a BWP.

[0227] A BWP may include UL BWPs (BWPs for UL) and DL BWPs (BWPs for DL). One or more BWPs may be configured within a single carrier for a UE.

[0228] At least one of the configured BWPs may be active, and the UE does not need to assume that it will send or receive a given signal / channel outside of the active BWP. In this disclosure, terms such as "cell" and "carrier" may be read as "BWP".

[0229] The structures described above, such as wireless frames, subframes, slots, minislots, and symbols, are merely illustrative examples. For instance, the number of subframes included in a wireless frame, the number of slots per subframe or wireless frame, the number of minislots within a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, and the number of symbols, symbol length, and cyclic prefix (CP) length within a TTI can be varied in various ways.

[0230] Furthermore, the information, parameters, etc., described in this disclosure may be expressed using absolute values, relative values ​​from a predetermined value, or corresponding other information. For example, wireless resources may be indicated by a predetermined index.

[0231] The names used for parameters and other elements in this disclosure are not restrictive in any way. Furthermore, mathematical formulas and other elements that use these parameters may differ from those expressly disclosed in this disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, and therefore, the various names assigned to these various channels and information elements are not restrictive in any way.

[0232] The information, signals, etc. described in this disclosure may be represented using any of the various different techniques. For example, the data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0233] Furthermore, information, signals, etc., can be output from upper layers to lower layers and from lower layers to upper layers, or to at least one of the two. Information, signals, etc., may also be input and output via multiple network nodes.

[0234] Input and output information and signals may be stored in a specific location (e.g., memory) or managed using a management table. Input and output information and signals may be overwritten, updated, or appended to. Output information and signals may be deleted. Input information and signals may be transmitted to other devices.

[0235] Information notification is not limited to the embodiments described herein and may be carried out by other means. For example, information notification in this disclosure may be carried out by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB)), Medium Access Control (MAC) signaling), other signals, or a combination thereof).

[0236] Physical layer signaling may also be called Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signals), L1 control information (L1 control signals), etc. RRC signaling may also be called RRC messages, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc. MAC signaling may also be communicated using, for example, MAC Control Element (CE).

[0237] Furthermore, notification of the specified information (for example, notification that "X is the case") is not limited to explicit notification, but may also be made implicitly (for example, by not notifying the specified information or by notifying other information).

[0238] The determination may be made by a value represented by 1 bit (0 or 1), by a boolean value represented as true or false, or by a numerical comparison (for example, a comparison with a predetermined value).

[0239] Software should be broadly interpreted to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and so on, whether they are called software, firmware, middleware, microcode, hardware description languages, or by any other name.

[0240] Furthermore, software, instructions, information, etc., may be transmitted and received via a transmission medium. For example, if software is transmitted from a website, server, or other remote source using at least one of wired technology (such as coaxial cable, fiber optic cable, twisted pair, or Digital Subscriber Line (DSL)) and wireless technology (such as infrared or microwave), then at least one of these wired and wireless technologies is included in the definition of a transmission medium.

[0241] The terms “system” and “network” as used in this disclosure may be used interchangeably. “Network” may also mean the equipment included in the network (e.g., base stations).

[0242] In this disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "quasi-co-location (QCL)," "transmission configuration indication state (TCI state)," "spatial relation," "spatial domain filter," "transmit power," "phase rotation," "antenna port," "antenna port group," "layer," "number of layers," "rank," "resource," "resource set," "resource group," "beam," "beam width," "beam angle," "antenna," "antenna element," and "panel" may be used interchangeably.

[0243] In this disclosure, terms such as "Base Station (BS)", "wireless base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "panel", "cell", "sector", "cell group", "carrier", and "component carrier" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0244] A base station can house one or more (e.g., three) cells. If a base station houses multiple cells, the entire coverage area of ​​the base station can be divided into several smaller areas, each of which may also be provided with communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The terms “cell” or “sector” refer to part or all of the coverage area of ​​at least one of the base station and / or base station subsystems that provide communication services in that coverage.

[0245] In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

[0246] A mobile station may also be called a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate term.

[0247] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc. At least one of the base station and the mobile station may also be a device mounted on a moving object, the moving object itself, etc.

[0248] The mobile object refers to an object that can move, and its moving speed is arbitrary, and it naturally includes the case where the mobile object is stopped. The mobile object includes, for example, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, shovel cars, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, rear cars, rickshaws, ships (ship and other watercraft), airplanes, rockets, artificial satellites, drones, multicopters, quadcopters, balloons, and objects mounted on them, and is not limited thereto. Further, the mobile object may be a mobile object that autonomously travels based on an operation command.

[0249] The mobile object may be a vehicle (e.g., a car, an airplane, etc.), a mobile object that moves without a driver (e.g., a drone, an autonomous driving vehicle, etc.), or a robot (humanoid or non-humanoid). Note that at least one of the base station and the mobile station includes a device that does not necessarily move during the communication operation. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor. [[ID=??]]

[0250] FIG. 11 is a diagram showing an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotation speed sensor 51, a pneumatic pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0251] The drive unit 41 is composed of, for example, at least one of an engine, a motor, and a hybrid of an engine and a motor. The steering unit 42 includes at least a steering wheel (also called a handle), and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on an operation of the steering wheel operated by a user.

[0252] 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 be called an Electronic Control Unit (ECU).

[0253] Examples of the signals from the various sensors 50-58 include a current signal from a current sensor 50 that senses the current of the motor, a rotational speed signal of the front wheels 46 / rear wheels 47 acquired by a rotational speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 acquired by an air pressure sensor 52, a vehicle speed signal acquired by a vehicle speed sensor 53, an acceleration signal acquired by an acceleration sensor 54, a depression amount signal of an accelerator pedal 43 acquired by an accelerator pedal sensor 55, a depression amount signal of a brake pedal 44 acquired by a brake pedal sensor 56, an operation signal of a shift lever 45 acquired by a shift lever sensor 57, a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by an object detection sensor 58, and the like.

[0254] The information service unit 59 is composed of various devices for providing (outputting) various information such as driving information, traffic information, and entertainment information, such as a car navigation system, an audio system, speakers, a display, a TV, a radio, and one or more ECUs for controlling these devices. The information service unit 59 uses the information acquired from an external device via a communication module 60 or the like to provide various information / services (for example, multimedia information / multimedia services) to the passengers of the vehicle 40.

[0255] The information service unit 59 may include an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) for receiving an external input, or may include an output device (for example, a display, speakers, an LED lamp, a touch panel, etc.) for performing an external output.

[0256] The driver assistance system unit 64 consists of various devices that provide functions to prevent accidents or reduce the driver's workload, such as millimeter-wave radar, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyro systems (e.g., Inertial Measurement Unit (IMU), Inertial Navigation System (INS)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driver assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driver assistance functions or autonomous driving functions.

[0257] The communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63. For example, the communication module 60 sends and receives data (information) via the communication port 63 to the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axle 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50-58 provided in the vehicle 40.

[0258] The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with external devices. For example, it can send and receive various types of information to and from external devices via wireless communication. The communication module 60 may be located either inside or outside the electronic control unit 49. The external device may be, for example, the base station 10 or the user terminal 20 described above. Alternatively, the communication module 60 may be, for example, at least one of the base station 10 and the user terminal 20 (it may function as at least one of the base station 10 and the user terminal 20).

[0259] The communication module 60 may transmit at least one of the following to an external device via wireless communication: signals from the various sensors 50-58 input to the electronic control unit 49, information obtained based on said signals, and information based on input from an external source (user) obtained via the information service unit 59. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc., may also be called input units that accept input. For example, the PUSCH transmitted by the communication module 60 may include information based on the above input.

[0260] The communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device and displays it on the information service unit 59 installed in the vehicle. The information service unit 59 may also be called an output unit, which outputs information (for example, it outputs information to devices such as displays and speakers based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 60).

[0261] Furthermore, the communication module 60 stores various information received from external devices in a memory 62 that can be used by the microprocessor 61. Based on the information stored in the memory 62, the microprocessor 61 may control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axle 48, various sensors 50-58, etc., which are provided in the vehicle 40.

[0262] Furthermore, the term "base station" in this disclosure may be interpreted as "user terminal." For example, the various aspects / embodiments of this disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X)). In this case, the user terminal 20 may have the functions that the base station 10 has. Also, terms such as "uplink" and "downlink" may be interpreted as terms corresponding to terminal-to-terminal communication (for example, "sidelink"). For example, uplink channel and downlink channel may be interpreted as sidelink channel.

[0263] Similarly, the term "user terminal" in this disclosure may be replaced with "base station." In this case, the base station 10 may be configured to have the same functions as the user terminal 20 described above.

[0264] In this disclosure, operations performed by a base station may, in some cases, be performed by its upper node. In a network including one or more network nodes with base stations, it is clear that various operations performed for communication with terminals may be performed by the base station, one or more network nodes other than the base station (for example, a Mobility Management Entity (MME), a Serving Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0265] Each aspect / embodiment described in this disclosure may be used individually, in combination, or switched between during execution. Furthermore, the processing procedures, sequences, flowcharts, etc., of each aspect / embodiment described in this disclosure may be rearranged in order, provided they are consistent. For example, the methods described in this disclosure present various step elements in an exemplary order and are not limited to that specific order.

[0266] Each aspect / embodiment described in this disclosure includes Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (where x is, for example, an integer or decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM®), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi®), IEEE 802.16 (WiMAX®), and IEEE This may apply to systems utilizing 802.20, Ultra-WideBand (UWB), Bluetooth®, or other appropriate wireless communication methods, as well as next-generation systems that are extended, modified, created, or defined based on these. It may also apply to combinations of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

[0267] In this disclosure, the phrase "based on" does not mean "based solely on" unless otherwise specified. In other words, the phrase "based on" means both "based solely on" and "based at least on."

[0268] Any reference to elements using the designations “first,” “second,” etc., as used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Accordingly, the references to the first and second elements do not imply that only two elements may be employed or that the first element must precede the second element in any way.

[0269] The term “determining” as used in this disclosure may encompass a wide variety of actions. For example, “determining” may be considered to include judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiry (e.g., searching in tables, databases, or other data structures), ascertaining, etc.

[0270] Furthermore, "judgment (decision)" may be considered as "judging (deciding)" things like receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory).

[0271] Also, "judgment (decision)" may be regarded as resolving, selecting, choosing, establishing, comparing, etc. That is, "judgment (decision)" may be regarded as performing some action as a "judgment (decision)".

[0272] Also, "judgment (decision)" may be reinterpreted as "assuming", "expecting", "considering", etc.

[0273] The "maximum transmit power" described in this disclosure may mean the maximum value of the transmit power, or the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0274] As used in this disclosure, the terms "connected" and "coupled", or any variations thereof, mean any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be reinterpreted as "accessed".

[0275] In this disclosure, when two elements are connected, it can be considered that they are "connected" or "coupled" to each other using one or more wires, cables, printed electrical connections, etc., and also, as some non-limiting and non-exhaustive examples, using electromagnetic energy having wavelengths in the radio frequency region, microwave region, optical (both visible and invisible) region, etc.

[0276] In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combine" may be interpreted similarly to "different."

[0277] Where the terms “include,” “including,” and variations thereof are used in this disclosure, these terms are intended to be inclusive, as is the term “comprising.” Furthermore, the term “or” as used in this disclosure is not intended to mean exclusive OR.

[0278] In this disclosure, if articles are added by translation, such as a, an, and the in English, this disclosure may include the fact that the noun following these articles is plural.

[0279] Although the invention described herein has been explained in detail above, it will be clear to those skilled in the art that the invention described herein is not limited to the embodiments described herein. The invention described herein can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined in the claims. Therefore, the descriptions herein are for illustrative purposes only and do not imply any limitation on the invention described herein.

[0280] This application is based on Japanese Patent Application No. 2022-25117, filed on February 21, 2022. All of its contents are included here.

Claims

1. Supports physical uplink shared channel (PUSCH) repetition of multiple transmit / receive points (TRPs), and when two Power Headroom Reports (PHRs) are configured, two Power Headroom (PH) fields and one P used in common for calculating the two PH fields for one serving cell. ＣＭＡＸ，ｆ，ｃ A control unit that generates a Medium Access Control (MAC) control element including a field, A terminal having a transmitting unit that transmits the MAC control elements.

2. The terminal according to claim 1, wherein of the two PH fields, the first PH field indicates PH for the first TRP, and the second PH field indicates PH for the second TRP.

3. Supports physical uplink sharing channel (PUSCH) repetition of multiple transmit / receive points (TRPs) and when two Power Headroom Reports (PHRs) are configured, two Power Headroom (PH) fields and one P used in common for calculating the two PH fields for one serving cell. ＣＭＡＸ，ｆ，ｃ The steps include generating a Medium Access Control (MAC) control element that includes a field, A wireless communication method for a terminal, comprising the step of transmitting the MAC control element.

4. A transmitter that supports physical uplink sharing channel (PUSCH) repetition of a multi-transmit / receive point (TRP) and transmits settings for two Power Headroom Reports (PHRs) to a terminal, For one serving cell, two Power Headroom (PH) fields and one P used in common to calculate those two PH fields. ＣＭＡＸ，ｆ，ｃ A base station having a receiving unit that receives MAC control elements, including a field, from the terminal.

5. A system having a terminal and a base station, The aforementioned terminal is A control unit that supports physical uplink sharing channel (PUSCH) repetition of multiple transmit / receive points (TRPs) and, when two Power Headroom Reports (PHRs) are configured, generates a Medium Access Control (MAC) control element that includes two Power Headroom (PH) fields for one serving cell and one P CMAX, f, c field used in common for calculating the two PH fields, It has a transmitting unit that transmits the MAC control elements, The aforementioned base station is A system having a receiving unit that receives the MAC control element.

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