Terminal, wireless communication method, base station and system

Abstract

A terminal according to one aspect of the present disclosure is provided with: a reception unit that receives a first parameter for performing transmission to a first transmission / reception point (TRP) and a second parameter for performing transmission to a second TRP; and a control unit that controls K repetitions of one transport block transmission over N slots, and that applies N×K parameters to the respective N×K slots through which the K repetitions of transmission is performed. Said N×K parameters include the first parameter and the second parameter, where N represents an integer of 2 or more and K represents an integer of 2 or more. According to one aspect of the present disclosure, it is possible to suitably perform data transmission over a plurality of slots when multiple TRPs are set / instructed.

Description

[Technical Field]

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

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

[0003] Successor systems to LTE (e.g., 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 or later) 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 Summary of the Invention [Problem to be solved by the invention]

[0005] In future wireless communication systems (e.g., NR), it is considered that one or more Transmission / Reception Points (TRPs) (Single TRP (STRP) / Multi TRP (MTRP)) will perform DL transmission to a terminal (user terminal, User Equipment (UE)). It is also considered that a UE will perform UL transmission to one or more TRPs using one or more panels.

[0006] Also, it is being considered that a UE transmits one piece of data (for example, a transport block) over multiple slots.

[0007] However, there has been little progress in studying how to transmit data across multiple slots when multi-TRP is set / instructed. Unless such a method is clearly defined, there is a risk that communication throughput and communication quality will deteriorate.

[0008] Therefore, the present disclosure provides a terminal and a wireless communication method that can appropriately transmit data across multiple slots when multi-TRP is set / instructed. 、 base station and systems One of the aims is to provide [Means for solving the problem]

[0009] A terminal according to one embodiment of the present disclosure includes a receiver that receives first parameters for transmission to a first transmission / reception point (TRP) and second parameters for transmission to a second TRP; and a controller that controls transmission of K repetitions of one transport block across N slots, and applies N×K parameters to the N×K slots in which the K repetitions are transmitted, respectively, where the N×K parameters include the first parameter and the second parameter, N is an integer greater than or equal to 2, and K is an integer greater than or equal to 2. the control unit selects: a first mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered repetitions among the K repetitions; a second mapping that applies two different parameters from the first parameter and the second parameter to 4i+1-th and 4i+2-th repetitions among the K repetitions and 4i+2-th and 4i+3-th repetitions among the K repetitions; a third mapping that applies two different parameters from the first parameter and the second parameter to a first half repetition and a second half repetition among the K repetitions; a fourth mapping that applies two different parameters from the first parameter and the second parameter to a 4Xj+1-th to a 4Xj+X-th repetition among the K repetitions and a 4Xj+X+1-th to a 4Xj+2X-th repetition among the K repetitions; and a fifth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered slots among N slots in each repetition. a sixth mapping that applies two different parameters from the first parameter and the second parameter to the 4i+1th and 4i+2nd slots of the N slots in each repetition and to the 4i+2nd and 4i+3rd slots of the N slots in each repetition; a seventh mapping that applies two different parameters from the first parameter and the second parameter to the first half slot and the second half slot of the N slots in each repetition; and slots 4Xj+1th to 4Xj+Xth of the N slots in each repetition. an eighth mapping that applies two different parameters from the first parameter and the second parameter to the 4Xj+X+1th to 4Xj+2Xth slots of the N slots in each repetition; a ninth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered slots and even-numbered slots of the N×K slots; and a ninth mapping that applies two different parameters from the first parameter and the second parameter to the 4i+1th and 4i+2nd slots of the N×K slots and the 4i+2nd and 4i+3rd slots of the N×K slots.performing one of a tenth mapping that applies two different parameters from the first parameter and the second parameter, an eleventh mapping that applies two different parameters from the first parameter and the second parameter to first and second slots of the N×K slots, and a twelfth mapping that applies two different parameters from the first parameter and the second parameter to slots 4Xj+1 to 4Xj+X of the N×K slots and slots 4Xj+X+1 to 4Xj+2X of the N×K slots, wherein i is an integer greater than or equal to 0, j is an integer greater than or equal to 0, and X is an integer greater than or equal to 1; and the receiving unit receives information indicating the one mapping; do. [Effects of the Invention]

[0010] According to one aspect of the present disclosure, when multi-TRP is set / instructed, data transmission across multiple slots can be appropriately performed. [Brief explanation of the drawings]

[0011] [Figure 1] Figure 1 shows an example of how DCI can be used to indicate switching between single-TRP mode and multi-TRP mode. [Figure 2] FIG. 2 shows an example of Rel. 17 multi-TRP PUSCH repetition using repetition type A. [Figure 3] 3A and 3B show an example of PUSCH repetition type A with TBoMS. [Figure 4] Figure 4 shows an example of option 1-1. [Figure 5] 5A and 5B show an example of cyclic mapping for option 1-2. [Figure 6] 6A and 6B show an example of sequential mapping for option 1-2. [Figure 7] 7A and 7B show an example of half-half mapping for option 1-2. [Figure 8] 8A and 8B show an example of option 2-2-1. [Figure 9]9A and 9B show an example of option 2-2-2. [Figure 10] FIG. 10 shows another example of option 2-2-2. [Figure 11] 11A and 11B show an example of the difference between options 2-2-2 and 2-2-3. [Figure 12] FIG. 12 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. [Figure 13] FIG. 13 is a diagram illustrating an example of the configuration of a base station according to an embodiment. [Figure 14] FIG. 14 is a diagram illustrating an example of the configuration of a user terminal according to an embodiment. [Figure 15] FIG. 15 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment. [Figure 16] FIG. 16 is a diagram illustrating an example of a vehicle according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] (Spatial relations for SRS, PUSCH) In Rel.15 / 16 NR, a UE may receive information (SRS configuration information, for example, parameters in the RRC control element "SRS-Config") used to transmit a measurement reference signal (e.g., a Sounding Reference Signal (SRS)).

[0013] Specifically, the UE may receive at least one of information about one or more SRS resource sets (SRS resource set information, e.g., the RRC control element "SRS-ResourceSet") and information about one or more SRS resources (SRS resource information, e.g., the RRC control element "SRS-Resource").

[0014] An SRS resource set may be associated with (group together) a predetermined number (e.g., one or more) of SRS resources, each of which may be identified by an SRS Resource Indicator (SRI) or SRS Resource Identifier (ID).

[0015] The SRS resource set information may include an SRS resource set ID (SRS-ResourceSetId), a list of SRS resource IDs (SRS-ResourceId) used in the resource set, an SRS resource type (e.g., periodic SRS, semi-persistent SRS, or aperiodic SRS), and information on SRS usage.

[0016] Here, the SRS resource type may indicate any one of periodic SRS (P-SRS), semi-persistent SRS (SP-SRS), and aperiodic SRS (A-SRS). Note that the UE may transmit P-SRS and SP-SRS periodically (or periodically after activation) and transmit A-SRS based on an SRS request in the DCI.

[0017] Furthermore, the use ("usage" of the RRC parameter, "SRS-SetUse" of the L1 (Layer-1) parameter) may be, for example, beam management, codebook (CB), non-codebook (NCB), antenna switching, etc. The SRS for codebook (CB) or non-codebook (NCB) use may be used to determine a codebook-based or non-codebook-based precoder for PUSCH transmission based on the SRI.

[0018] For example, the UE may determine a precoder for PUSCH transmission based on the SRI, a Transmitted Rank Indicator (TRI), and a Transmitted Precoding Matrix Indicator (TPMI) in the case of codebook-based transmission. The UE may determine a precoder for PUSCH transmission based on the SRI in the case of non-codebook-based transmission.

[0019] The SRS resource information may include an SRS resource ID (SRS-ResourceId), an SRS port number, an SRS port number, a transmission comb, an SRS resource mapping (e.g., time and / or frequency resource position, resource offset, resource period, number of repetitions, number of SRS symbols, SRS bandwidth, etc.), hopping-related information, an SRS resource type, a sequence ID, spatial relationship information of the SRS, etc.

[0020] The spatial relationship information of the SRS (e.g., the RRC information element "spatialRelationInfo") may indicate spatial relationship information between a predetermined reference signal and the SRS. The predetermined reference signal may be at least one of a Synchronization Signal / Physical Broadcast Channel (SS / PBCH) block, a Channel State Information Reference Signal (CSI-RS), and an SRS (e.g., another SRS). The SS / PBCH block may be referred to as a Synchronization Signal Block (SSB).

[0021] The spatial relationship information of the SRS may include at least one of an SSB index, a CSI-RS resource ID, and an SRS resource ID as an index of the predetermined reference signal.

[0022] In the present disclosure, the SSB index, SSB resource ID, and SSB resource indicator (SSBRI) may be interchangeable. Also, the CSI-RS index, CSI-RS resource ID, and CSI-RS resource indicator (CRI) may be interchangeable. Also, the SRS index, SRS resource ID, and SRI may be interchangeable.

[0023] The spatial relationship information of the SRS may include a serving cell index, a BWP index (BWP ID), etc. corresponding to the predetermined reference signal.

[0024] When the UE is configured with spatial relationship information regarding an SSB or CSI-RS and an SRS for a certain SRS resource, the UE may transmit the SRS resource using the same spatial domain filter (spatial domain transmit filter) as the spatial domain filter for receiving the SSB or CSI-RS (spatial domain receive filter). In this case, the UE may assume that the UE receive beam for the SSB or CSI-RS and the UE transmit beam for the SRS are the same.

[0025] When spatial relationship information regarding a certain SRS (target SRS) resource is configured between another SRS (reference SRS) and the SRS (target SRS), the UE may transmit the target SRS resource using the same spatial domain filter (spatial domain transmit filter) as the spatial domain filter (spatial domain transmit filter) for transmitting the reference SRS. That is, in this case, the UE may assume that the UE transmit beam of the reference SRS and the UE transmit beam of the target SRS are the same.

[0026] The UE may determine the spatial relationship of the PUSCH scheduled by the DCI (e.g., DCI format 0_1) based on the value of a predetermined field (e.g., an SRS resource identifier (SRI) field). Specifically, the UE may use spatial relationship information of the SRS resource (e.g., the RRC information element "spatialRelationInfo") determined based on the value of the predetermined field (e.g., the SRI) for PUSCH transmission.

[0027] In Rel.16 NR, when codebook-based PUSCH transmission is used, a UE may be configured with one SRS resource set with usage=CB, and two SRS resources for the SRS resource set may be configured by RRC, with one of the two SRS resources indicated by DCI (e.g., a 1-bit SRI field). Note that SRS resources in the same SRS resource set may have the same number of ports (number of SRS ports) unless full power mode 2 is configured (e.g., the upper layer parameter ul-FullPowerTransmission-r16 is set to fullpowerMode2).

[0028] In Rel.16 NR, when non-codebook-based PUSCH transmission is used, a UE may be configured with one SRS resource set with purpose = NCB, and four SRS resources for the SRS resource set may be configured by RRC, and one or a combination of the four SRS resources may be indicated by DCI (e.g., a 2-bit SRI field). Note that each SRS resource in the SRS resource set with purpose = NCB may have one port.

[0029] (PUSCH transmission power control) In NR, the transmission power of the PUSCH is controlled based on a TPC command (also referred to as a value, an increase / decrease value, a correction value, etc.) indicated by a value in a field (also referred to as a TPC command field, etc.) in DCI.

[0030] For example, when a UE transmits a PUSCH on an active UL BWP b of a carrier f of a serving cell c using a parameter set (open loop parameter set) with index j and a power control adjustment state (PUSCH power control adjustment state) with index l, the PUSCH transmission power (P PUSCH、b,f,c (i,j,q d ,l))[dBm] is P CMAX,f,c(i) , P O_PUSCH,b,f,c (j), M PUSCH RB,b,f,c (i), α b,f,c (j), P.L. b,f,c (q d ), Δ TF,b,f,c (i), f b,f,c (i, l), may be based on at least one of:

[0031] The power control adjustment state may be referred to as a closed loop (CL)-power control (PC) state, a value based on TPC commands of a power control adjustment state index l, an accumulated value of TPC commands, or a value due to a closed loop. l may also be referred to as a closed loop index.

[0032] Furthermore, the PUSCH transmission opportunity i is a period during which the PUSCH is transmitted, and may be configured, for example, by one or more symbols, one or more slots, or the like.

[0033] P CMAX,f,c(i) is, for example, the transmission power of the user terminal (also referred to as maximum transmission power, UE maximum output power, etc.) set for carrier f of serving cell c at transmission opportunity i.

[0034] P O_PUSCH,b,f,c(j) is a parameter related to the target received power (e.g., a parameter related to the transmit power offset, also referred to as a transmit power offset P0, a target received power parameter, etc.) set for the active UL BWP b of the serving cell c on the carrier f at the transmission opportunity i. O_UE_PUSCH,b,f,c (j) is P O_NOMINAL_PUSCH,f,c (j) and P O_UE_PUSCH,b,f,c It may be a sum of (j).

[0035] M PUSCH RB,b,f,c (i) is the number of resource blocks (bandwidth) allocated to PUSCH for transmission opportunity i in active UL BWP b of carrier f with serving cell c and subcarrier spacing μ. b,f,c (j) is a value provided by a higher layer parameter (e.g., also called msg3-Alpha, p0-PUSCH-Alpha, fractional factor, etc.).

[0036] PL b,f,c (q d ) is, for example, the index q of the reference signal (RS, path loss reference RS, pathloss (PL)-RS, path loss reference RS, DL-RS for path loss measurement, PUSCH-PathlossReferenceRS) for the downlink BWP associated with the active UL BWP b of the carrier f of the serving cell c. d is the path loss (path loss estimation [dB], path loss compensation) calculated by the user terminal using

[0037] If the UE is not provided with a pathloss reference RS (e.g., PUSCH-PathlossReferenceRS) or if the UE is not provided with individual upper layer parameters, the UE may use RS resources from the synchronization signal (SS) / physical broadcast channel (PBCH) block (SS block (SSB)) used to obtain the Master Information Block (MIB) to derive the PL. b,f,c (q d) may be calculated.

[0038] When the UE is configured with a number of RS resource indices up to the value of the maximum number of pathloss reference RSs (e.g., maxNrofPUSCH-PathlossReferenceRSs) and a set of RS configurations for the RS resource indices according to the pathloss reference RSs, the set of RS resource indices may include one or both of a set of SS / PBCH block indices and a set of channel state information (CSI)-reference signal (RS) resource indices. The UE may select RS resource index q in the set of RS resource indices. d may be identified.

[0039] If a PUSCH transmission is scheduled by a Random Access Response (RAR) UL grant, the UE uses the same RS resource index q as for the corresponding PRACH transmission. d may also be used.

[0040] When a UE is provided with a power control configuration for a PUSCH by a sounding reference signal (SRS) resource indicator (SRI) (e.g., SRI-PUSCH-PowerControl) and with one or more values ​​of the ID of the pathloss reference RS, the UE may obtain a mapping between a set of values ​​for the SRI field in DCI format 0_1 ​​and a set of ID values ​​of the pathloss reference RS from higher layer signaling (e.g., sri-PUSCH-PowerControl-Id in SRI-PUSCH-PowerControl). The UE may obtain an RS resource index q from the ID of the pathloss reference RS mapped to the SRI field value in DCI format 0_1 ​​that schedules the PUSCH. d may be determined.

[0041] If a PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with PUCCH spatial relationship information for the PUCCH resource with the lowest index for the active UL BWP b of each carrier f and serving cell c, the UE shall select the PUCCH resource with the same RS resource index q as the PUCCH transmission in that PUCCH resource. d may also be used.

[0042] If the PUSCH transmission is scheduled by DCI format 0_0 and the UE is not provided with spatial settings for PUCCH transmission, or if the PUSCH transmission is scheduled by DCI format 0_1 ​​that does not include an SRI field, or if the UE is not provided with settings for PUSCH power control by SRI, the UE shall select RS resource index q with an ID of a path loss reference RS of zero. d may also be used.

[0043] For PUSCH transmission configured by a configured grant configuration (e.g., ConfiguredGrantConfig), if the configured grant configuration includes a specific parameter (e.g., rrc-ConfiguredUplinkGrant), the RS resource index q is determined by the path loss reference index (e.g., pathlossReferenceIndex) in the specific parameter. d may be provided to the UE.

[0044] For the PUSCH transmission configured by the configuration grant configuration, if the configuration grant configuration does not include a specific parameter, the UE shall determine the RS resource index q from the value of the ID of the path loss reference RS mapped to the SRI field in the DCI format that activates the PUSCH transmission. d If the DCI format does not include an SRI field, the UE may determine an RS resource index q with the ID of the path loss reference RS set to zero. d may be determined.

[0045] Δ TF,b,f,c(i) is the transmission power adjustment component (offset, transmission format compensation) for UL BWP b of carrier f of serving cell c.

[0046] f b,f,c (i,l) is the PUSCH power control adjustment state for the active UL BWP b of carrier f of serving cell c at transmission opportunity i. b,f,c (i,l) is δ PUSCH,b,f,c It may be based on (i,l).

[0047] If TPC accumulation is enabled, f b,f,c (i,l) is δ PUSCH,b,f,c It may be based on the cumulative value of (m, l).

[0048] If TPC accumulation is disabled, f b,f,c (i,l) is δ PUSCH,b,f,c It may be (i,l) (absolute value).

[0049] If information indicating that TPC accumulation is disabled (TPC-Accumulation) is not set (if information indicating that TPC accumulation is disabled is not provided, and TPC accumulation is set to enabled), the UE accumulates TPC command values ​​and determines the transmit power based on the accumulation result (power control state) (applies the TPC command values ​​via accumulation).

[0050] When information indicating that TPC accumulation is disabled (TPC-Accumulation) is set (when information indicating that TPC accumulation is disabled is provided, or when TPC accumulation is set to disabled), the UE does not accumulate TPC command values ​​and determines the transmission power based on the TPC command values ​​(power control state) (applies the TPC command values ​​without using accumulation).

[0051] δ PUSCH,b,f,c(i,l) may be a TPC command value included in DCI format 0_0 or DCI format 0_1 ​​that schedules a PUSCH transmission opportunity i on active UL BWP b of carrier f of serving cell c, or a TPC command value jointly coded with other TPC commands in DCI format 2_2 with a CRC scrambled by a specific Radio Network Temporary Identifier (RNTI) (e.g., TPC-PUSCH-RNTI).

[0052] Σ m=0 C(Di)-1 δ PUCCH,b,f,c (m,l) is the cardinality C(D i ) a set of TPC command values ​​D i It may be the sum of the TPC command values ​​in i is the K PUSCH transmission opportunity i-i0 on the active UL BWP b of carrier f of serving cell c for the PUSCH power control adjustment state l. PUSCH (i-i0)-1 symbols ago and K PUSCH (i) may be the set of TPC command values ​​received between symbols (i) and (ii) for PUSCH transmission opportunity i-i0. PUSCH (i-i0) symbols ago is K of PUSCH transmission opportunity i PUSCH (i) It may be the smallest positive integer that is earlier than the symbol before.

[0053] If a PUSCH transmission is scheduled by DCI format 0_0 or DCI format 0_1, K PUSCH (i) may be the number of symbols in the active UL BWP b of carrier f of serving cell c after the last symbol of the corresponding PDCCH reception and before the first symbol of the PUSCH transmission. If PUSCH transmission is configured by configured grant configuration information (ConfiguredGrantConfig), K PUSCH(i) is the number of symbols per slot, N, in the active UL BWP b of carrier f of serving cell c. symb slot and the minimum value of the value provided by k2 in the PUSCH common configuration information (PUSCH-ConfigCommon). PUSCH,min It may also be the number of symbols.

[0054] The power control adjustment state may be configured to have multiple states (e.g., two states) or a single state depending on a higher layer parameter. When multiple power control adjustment states are configured, one of the multiple power control adjustment states may be identified by an index l (e.g., l∈{0, 1}).

[0055] (Multi-TRP PUSCH repeat) In NR, it is being considered that one or more transmission / reception points (TRPs) (multi-TRPs (M-TRPs)) will perform DL transmission to a UE using one or more panels (multi-panels).It is also being considered that a UE will perform UL transmission to one or more TRPs using one or more panels.

[0056] In future wireless systems (e.g., NR after Rel. 17), it is being considered to indicate multiple (e.g., two) SRS Resource Indicators (SRIs) / Transmitted Precoding Matrix Indicators (TPMIs) using a single DCI for performing PUSCH repetition transmission of multiple TRPs (MTRP PUSCH repetition).

[0057] For example, in the case of codebook-based transmission, the UE may determine a precoder for PUSCH transmission based on the SRI, a Transmitted Rank Indicator (TRI), and the TPMI. In the case of non-codebook-based transmission, the UE may determine a precoder for PUSCH transmission based on the SRI. Note that the SRI may be specified to the UE by the DCI or may be provided by a higher layer parameter.

[0058] In this way, for the single DCI based M-TRP PUSCH repetition scheme, both codebook-based and non-codebook-based PUSCH transmission may be supported.

[0059] In this case, the maximum number of SRS resource sets may be extended to X (e.g., X=2). Also, it may be supported that multiple (e.g., two) SRI fields corresponding to multiple (e.g., two) SRS resource sets are included in a predetermined DCI format (e.g., DCI format 0_1 / 0_2) used for PUSCH scheduling. Each SRI field may indicate an SRI for each TRP.

[0060] Dynamic switching (or changeover) between multi-TRP operation and single-TRP operation may be supported. In this case, a field (e.g., a new field) for indicating dynamic switching may be supported in the downlink control information (see Figure 1). Figure 1 shows a case where a 2-bit field is used to indicate switching between single-TRP mode and multi-TRP mode. Of course, the number of bits and the indication corresponding to each code point are not limited to this. The new field may be an SRS resource set indicator field.

[0061] One or more SRS resource sets (e.g., a first SRS resource set and a second SRS resource set) used for the multi-TRP PUSCH scheduled by a predetermined DCI format may be defined by an entry in the upper layer parameters, which may be upper layer parameters related to SRS resource sets (e.g., srs-ResourceSetToAddModList / srs-ResourceSetToAddModListDCI-0-2 included in SRS-config).

[0062] The presence of a field for dynamic switching included in a DCI (e.g., a new field, an SRS resource set indicator field) may be determined separately for multiple DCI formats (e.g., DCI format 0_1 ​​and DCI format 0_2). For example, the presence or absence of the new field in each DCI format may be determined depending on whether multiple (e.g., two) SRS resource sets are configured for each DCI format.

[0063] The same number of SRS resources may be supported in multiple (e.g., two) SRS resource sets. For example, for codebook-based multi-TRP PUSCH repetition, the number of SRS ports indicated by the two SRIs may be the same.

[0064] Two SRIs, two TPMIs, and two power control parameter sets may be indicated, which may be applied to K PUSCH repetitions (K consecutive slots for repetition type A) using cyclic or sequential mapping.

[0065] Each codepoint in the SRS resource set indicator field is associated with an SRS resource set and an SRI / TPMI field. Here, the SRI field is used for both CB and NCB, and the TPMI field is used only for CB. The SRS resource set indicator field codepoint "00" is associated with single-TRP mode using the first SRS resource set (TRP1) and the first SRI / TPMI field (the second SRI / TPMI field is unused). The SRS resource set indicator field codepoint "01" is associated with single-TRP mode using the second SRS resource set (TRP2) and the first SRI / TPMI field (the second SRI / TPMI field is unused). The SRS resource set indicator field codepoint "10" is associated with multi-TRP mode (TRP1, TRP2 in that order) and both the first and second SRI / TPMI fields. where the first SRI / TPMI field corresponds to the first SRS resource set and the second SRI / TPMI field corresponds to the second SRS resource set. Codepoint "11" in the SRS resource set indicator field is associated with multi-TRP mode (TRP2, TRP1 in that order) and both the first and second SRI / TPMI fields. Where the first SRI / TPMI field corresponds to the first SRS resource set and the second SRI / TPMI field corresponds to the second SRS resource set.

[0066] When DCI format 0_1 ​​or DCI format 0_2 indicates codepoint "10" for the SRS resource set indicator, the association of the first and second SRS resource sets to K consecutive slots may follow the following associations 1-1 to 1-3. [Association 1-1] When K=2, the first and second SRS resource sets are applied to the first and second slots of two consecutive slots, respectively. [Association 1-2] If K>2 and cyclic mapping in the PUSCH configuration is enabled, the first and second SRS resource sets are applied to the first and second slots of the K consecutive slots, respectively, and the same SRS resource set mapping pattern continues for the remaining slots of the K consecutive slots. [Association 1-3] If K>2 and sequential mapping in the PUSCH configuration is enabled, a first SRS resource set is applied to the first and second slots of the K consecutive slots, a second SRS resource set is applied to the third and fourth slots of the K consecutive slots, and the same SRS resource set mapping pattern continues for the remaining slots of the K consecutive slots.

[0067] Otherwise, if DCI format 0_1 ​​or DCI format 0_2 indicates codepoint "11" for the SRS resource set indicator, the association of the first and second SRS resource sets to K consecutive slots may follow associations 2-1 to 2-3 below. [Association 2-1] When K=2, the second and first SRS resource sets are applied to the first and second slots of two consecutive slots, respectively. [Association 2-2] If K>2 and cyclic mapping in the PUSCH configuration is enabled, the second and first SRS resource sets are applied to the first and second slots of the K consecutive slots, respectively, and the same SRS resource set mapping pattern continues for the remaining slots of the K consecutive slots. [Association 2-3] If K>2 and sequential mapping in the PUSCH configuration is enabled, the second SRS resource set is applied to the first and second slots of the K consecutive slots, the first SRS resource set is applied to the third and fourth slots of the K consecutive slots, and the same SRS resource set mapping pattern continues for the remaining slots of the K consecutive slots.

[0068] Figure 2 shows an example of Rel. 17 multi-TRP PUSCH repetition using repetition type A. This example uses cyclic mapping with an order of TRP1, TRP2, i.e., code point 10 is indicated for the SRS resource set indicator field. PUSCH repetitions are transmitted over consecutive slots #1 through #4. First SRI / TPMI / power control parameters are applied to slots #1 and #3, and second SRI / TPMI / power control parameters are applied to slots #2 and #4.

[0069] (Extended coverage) In the Rel. 17 coverage extension, the following extensions 1 to 3 are being considered for PUSCH. [Extended 1] Transport block processing over multiple slots (TBoMS): One TB is processed and transmitted over multiple slots (N slots). N can be configured in each row of the time domain resource allocation (TDRA) table or outside the TDRA table. [Extension 2] Along with TBoMS, PUSCH repetition type A (K repetitions) may be configured. Each repetition is TBoMS using N slots. PUSCH transmission using TBoMS and repetition type A is in N*K slots in total. In the example of Figure 3A, K = 4, N = 4, one TB is transmitted over 4 slots, and repeated transmission is performed over a total of 16 slots. [Extended 3] The available slots are based on at least one of the TDD UL-DL common configuration (tdd-UL-DL-ConfigurationCommon), the TDD UL-DL dedicated configuration (tdd-UL-DL-ConfigurationDedicated), and the SSB positions in a burst (ssb-PositionsInBurst). The UE may determine the N*K slots for PUSCH transmission with TBoMS and recurrence type A based on at least one of the tdd-UL-DL-ConfigurationCommon, tdd-UL-DL-ConfigurationDedicated, and ssb-PositionsInBurst. If at least one symbol in a slot overlaps with a DL symbol indicated by the tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, or overlaps with a symbol of an SS / PBCH block with an index provided by the ssb-PositionsInBurst, the slot is not counted (is not available) in the number of N*K slots. In the example of Figure 3B, K = 4 and N = 4. In each repetition, TBs are transmitted over four slots excluding the slots containing the DL symbols indicated by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated or the symbols of the SS / PBCH block with the index provided by ssb-PositionsInBurst (slot "D" and slot "SSB" in the figure).

[0070] Whether and how TBoMS and available slot determination will be supported using multi-TRP has not yet been considered. If these are not properly specified, there is a risk that communication throughput and communication quality will be degraded.

[0071] Therefore, the present inventors have conceived a method for TBoMS using multiple TRPs and determining available slots.

[0072] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Each of the following embodiments (for example, each case) may be used alone, or at least two of them may be combined and applied.

[0073] In the present disclosure, "A / B" and "at least one of A and B" may be interpreted interchangeably. Also, in the present disclosure, "A / B / C" may mean "at least one of A, B, and C."

[0074] In the present disclosure, terms such as activate, deactivate, indicate (or indicate), select, configure, update, and determine may be read interchangeably. In the present disclosure, terms such as support, control, controllable, operate, and operate may be read interchangeably.

[0075] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, information elements (IEs), configurations, etc. may be interchangeable. In the present disclosure, Medium Access Control (MAC) control elements (CEs), update commands, activation / deactivation commands, etc. may be interchangeable.

[0076] In the present disclosure, higher layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, and the like, or a combination thereof.

[0077] In the present disclosure, MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. Broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

[0078] In the present disclosure, physical layer signaling may be, for example, Downlink Control Information (DCI), Uplink Control Information (UCI), and the like.

[0079] In this disclosure, the terms index, identifier (ID), indicator, resource ID, etc. may be interchangeable. In this disclosure, the terms sequence, list, set, group, cluster, subset, etc. may be interchangeable.

[0080] In this disclosure, the terms panel, UE panel, panel group, beam, beam group, precoder, Uplink (UL) transmitting entity, Transmission / Reception Point (TRP), base station, Spatial Relation Information (SRI), spatial relation, SRS Resource Indicator (SRI), Control Resource Set (CORESET), Physical Downlink Shared Channel (PDSCH), Codeword (CW), Transport Block (TB), Reference Signal (RS), antenna port (e.g., Demodulation Reference Signal (DMRS) port), antenna port group (e.g., DMRS port group), group (e.g., spatial relation group, Code Division Multiplexing (CDM) group, reference signal group, CORESET group, Physical Uplink Control Channel (PUCCH) group, PUCCH resource group), resource (e.g., reference signal resource, SRS resource), resource set (e.g., reference signal resource set), CORESET pool, downlink Transmission Configuration Indication state (TCI state) (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, Quasi-Co-Location (QCL), QCL assumption, etc. may be read as interchangeable.

[0081] In the present disclosure, time domain resource allocation and time domain resource assignment may be read interchangeably.

[0082] (Wireless communication method) In each embodiment, N may be the number of slots in TBoMS (eg, numberOfSlotsTBoMS). In each embodiment, K may be the number of repetitions (eg, numberOfRepetition).

[0083] In each embodiment, TBoMS(N>1) may be set / indicated by means of one of the following cases 1-1 to 1-4. [Case 1-1] N>1 is set in a row of the TDRA table, and the row is indicated by the PUSCH scheduling DCI. [Case 1-2] N>1 is set in any of the rows of the TDRA table set by the RRC (IE). [Cases 1-3] N>1 is provided by higher layer configuration parameters (similar to repK) for Type 1 configured grant (CG) PUSCH. [Case 1-4] N>1 is configured in some rows of the TDRA table configured by RRC (IE), and N>1 is indicated for Type 1 CG PUSCH by RRC configuration.

[0084] In each embodiment, no repetition (K=1) may be set / indicated by means of one of the following cases 2-1 to 2-4. [Case 2-1] K=1 is set in a row of the TDRA table, and the row is indicated by the PUSCH scheduling DCI. [Case 2-2] K does not exist, or K=1 is set in any row of the TDRA table set by the RRC (IE). [Case 2-3] K=1 is provided by the number of repetitions (e.g., repK, other than the TDRA table). [Case 2-4] K=1 is set in any of several rows of the TDRA table configured by the RRC (IE), and K=1 is indicated for Type 1 CG PUSCH by the RRC configuration.

[0085] In each embodiment, the iterations (K>1) may be set / instructed by means of one of the following cases 3-1 to 3-4. [Case 3-1] K>1 is set in a row of the TDRA table, and the row is indicated by the PUSCH scheduling DCI. [Case 3-2] K>1 is set in one of the rows of the TDRA table set by the RRC (IE). [Case 3-3] K>1 is provided by the number of repeats (e.g., repK). [Case 3-4] K>1 is configured in some rows of the TDRA table configured by RRC (IE), and K>1 is indicated for Type 1 CG PUSCH by RRC configuration.

[0086] In each embodiment, the multi-TRP PUSCH may be configured / indicated by one of the following cases 4-1 to 4-4. [Case 4-1] The dynamic single-TRP / multiple-TRP switching field in the PUSCH scheduling DCI (e.g., the SRS resource set indicator field in Rel. 17, or another field in a future release) indicates multiple TRPs (e.g., the code point of the SRS resource set indicator field in Rel. 17 is 10 or 11). [Case 4-2] Two TCI / SRI / TPMI fields are set by the RRC (IE). [Case 4-3] Two TCI / SRI / TPMI fields are indicated by one TCI / SRI / TPMI field in the PUSCH scheduling DCI. [Case 4-4] Two SRS resource sets for CB / NCB are configured by RRC (IE).

[0087] In each embodiment, the first / second TCI / SRI / TPMI / power control parameters may refer to any of the following parameters 1 to 3. [Parameter 1] TCI / SRI / TPMI / power control parameters associated with the first / second TCI / SRI / TPMI fields. [Parameter 2] TCI / SRI / TPMI / power control parameters associated with the first / second TCI / SRI / TPMI indicated by one TCI / SRI / TPMI field. [Parameter 3] TCI / SRI / TPMI / power control parameters associated with the first / second SRS resource set (SRS resource set with lower ID / higher ID).

[0088] In each embodiment, the power control parameters may include P0 / alpha / closed loop index.

[0089] In each embodiment, the PUSCH scheduling DCI may be replaced with a CG configuration, so that each embodiment may be applied to a CG PUSCH.

[0090] In each embodiment, a parameter, a parameter for transmission for one TRP, a TCI / SRI / TPMI / power control parameter, an SRS resource set, and an SRS resource set associated with a parameter may be interchangeable. Similarly, an i-th parameter, a parameter for transmission for the i-th TRP, an i-th TCI / SRI / TPMI / power control parameter, an i-th SRS resource set, and an SRS resource set associated with the i-th TCI / SRI / TPMI / power control parameter may be interchangeable. Here, i may be an integer equal to or greater than 1, for example, 1 or 2.

[0091] In each embodiment, mapping, pattern, mapping pattern, SRS resource set mapping pattern, and application may be read interchangeably.

[0092] In each embodiment, the terms TDRA table and TDRA list may be interchangeable. In each embodiment, the terms TDRA table row and TDRA list element / entry may be interchangeable.

[0093] In each embodiment, the terms transport block, code block, and UL data may be interchangeable.

[0094] First Embodiment This embodiment relates to multi-TRP PUSCH and TBoMS (N>1, K=1) without repetition.

[0095] The UE may follow any of the following options: 1-1, 1-2, or a variation of 1-2.

[0096] Option 1-1 For PUSCH transmission, the UE does not assume that TBoMS (N>1, K=1) without repetition is configured / indicated and multi-TRP PUSCH is configured / indicated. In this case, N slots of TBoMS may be transmitted to the same TRP, i.e., the same TCI / SRI / TPMI / power control parameters may be applied to the N slots of TBoMS.

[0097] Figure 4 shows an example of option 1-1. In this example, N=4. One TB is transmitted over four slots to one TRP.

[0098] 《Option 1-2》 For PUSCH transmission, the UE may assume that TBoMS (N>1, K=1) without repetition is configured / indicated and that multi-TRP PUSCH is configured / indicated. In this case, N slots of TBoMS may be transmitted to multiple TRPs. That is, different TCI / SRI / TPMI / power control parameters may be applied to the N slots of TBoMS.

[0099] Using any of the following patterns 1 to 8, multiple (two) TCI / SRI / TPMI / power control parameters may be applied to multiple (N) slots.

[0100] [Pattern 1] Cyclic mapping using the order TRP1 to TRP2: The first TCI / SRI / TPMI / power control parameters are applied to the first slot, the second TCI / SRI / TPMI / power control parameters are applied to the second slot, and the same pattern continues for the remaining N slots.

[0101] Figure 5A shows an example of Pattern 1 of Option 1-2. In this example, N=4, and one TB is transmitted over four slots. Of the four slots, transmissions in the first and third slots use the first TCI / SRI / TPMI / power control parameters (transmitted to TRP1). Of the four slots, transmissions in the second and fourth slots use the second TCI / SRI / TPMI / power control parameters (transmitted to TRP2).

[0102] [Pattern 2] Cyclic mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied to the first slot, the first TCI / SRI / TPMI / power control parameters are applied to the second slot, and the same pattern continues for the remaining slots of the N slots.

[0103] Figure 5B shows an example of Pattern 2 of Option 1-2. In this example, N=4, and one TB is transmitted over four slots. Of those four slots, transmissions in the first and third slots use the second TCI / SRI / TPMI / power control parameters (transmitted to TRP2). Of those four slots, transmissions in the second and fourth slots use the first TCI / SRI / TPMI / power control parameters (transmitted to TRP1).

[0104] [Pattern 3] Sequential mapping using the order TRP1 to TRP2: The first TCI / SRI / TPMI / power control parameters are applied to the first and second slots, the second TCI / SRI / TPMI / power control parameters are applied to the third and fourth slots, and the same pattern continues for the remaining slots of the N slots.

[0105] Figure 6A shows an example of Pattern 3 of Option 1-2. In this example, N=4, and one TB is transmitted over four slots. Of the four slots, transmissions in the first and second slots use the first TCI / SRI / TPMI / power control parameters (sent to TRP1). Of the four slots, transmissions in the third and fourth slots use the second TCI / SRI / TPMI / power control parameters (sent to TRP2).

[0106] [Pattern 4] Sequential mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied to the first and second slots, the first TCI / SRI / TPMI / power control parameters are applied to the third and fourth slots, and the same pattern continues for the remaining slots of the N slots.

[0107] Figure 6B shows an example of Pattern 4 of Option 1-2. In this example, N=4, and one TB is transmitted over four slots. Of the four slots, transmissions in the first and second slots use the second TCI / SRI / TPMI / power control parameters (transmitted to TRP2). Of the four slots, transmissions in the third and fourth slots use the first TCI / SRI / TPMI / power control parameters (transmitted to TRP1).

[0108] [Pattern 5] Half-half mapping using the order TRP1 to TRP2: The first TCI / SRI / TPMI / power control parameters are applied to the first floor(N / 2) slots or the first ceil(N / 2) slots, and the second TCI / SRI / TPMI / power control parameters are applied to the remaining N slots.

[0109] Figure 7A shows an example of Pattern 5 of Option 1-2. In this example, N=8, and one TB is transmitted over eight slots. Of the eight slots, transmissions in slots 1 through 4 use the first TCI / SRI / TPMI / power control parameters (sent to TRP1). Of the four slots, transmissions in slots 5 through 8 use the second TCI / SRI / TPMI / power control parameters (sent to TRP2).

[0110] [Pattern 6] Half-half mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied to the first floor(N / 2) slots or the first ceil(N / 2) slots, and the first TCI / SRI / TPMI / power control parameters are applied to the remaining N slots.

[0111] Figure 7B shows an example of Pattern 6 for Option 1-2. In this example, N=8, and one TB is transmitted over eight slots. Of the eight slots, transmissions in slots 1 through 4 use the second TCI / SRI / TPMI / power control parameters (transmitted to TRP2). Of the four slots, transmissions in slots 5 through 8 use the first TCI / SRI / TPMI / power control parameters (transmitted to TRP1).

[0112] [Pattern 7] Configurable pattern using TRP1 to TRP2 order: First TCI / SRI / TPMI / power control parameters are applied to the first X slots, second TCI / SRI / TPMI / power control parameters are applied to the second X slots, and the same pattern continues for the remaining N slots.

[0113] [Pattern 8] Configurable pattern using TRP2 to TRP1 order: The second TCI / SRI / TPMI / power control parameters are applied to the first X slots, the first TCI / SRI / TPMI / power control parameters are applied to the second X slots, and the same pattern continues for the remaining N slots.

[0114] Pattern 1 / 2 (first mapping) of Option 1-2 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the odd (2i+1)th slot and the even (2i)th slot of the N slots, where i may be an integer equal to or greater than 0.

[0115] Pattern 3 / 4 (second mapping) of Option 1-2 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the 4i+1 and 4i+2 slots of the N slots and to the 4i+2 and 4i+3 slots of the N slots, where i may be an integer equal to or greater than 0.

[0116] Pattern 5 / 6 (third mapping) of option 1-2 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the first and second slots of the N slots.

[0117] Pattern 7 / 8 (fourth mapping) of Option 1-2 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to slots 4Xj+1 through 4Xj+X of the N slots and slots 4Xj+X+1 through 4Xj+2X of the N slots, where j may be an integer greater than or equal to 0.

[0118] Only some of patterns 1 to 8 (e.g., patterns 1 to 4) may be supported.

[0119] Multiple patterns among patterns 1 to 8 may be switched by RRC signaling, MAC CE, DCI, or a combination of RRC signaling, MAC CE, and DCI (information indicating one mapping). For example, cyclic mapping or sequential mapping may be switched by RRC signaling. The order of TRPs may be switched by a DCI field in a PUSCH scheduling DCI.

[0120] <<Variations of Option 1-2>> For PUSCH transmission, even when TBoMS (N>1, K=1) without repetition is configured / indicated and a multi-TRP PUSCH is configured / indicated, the UE may apply one of the TCI / SRI / TPMI / power control parameters of a default one (default TRP). In this case, N slots of TBoMS may be transmitted to the same TRP. That is, the same TCI / SRI / TPMI / power control parameters may be applied to the N slots of TBoMS. It may also be specified whether the first or second TCI / SRI / TPMI / power control parameters are applied as default.

[0121] According to this embodiment, the UE can properly perform multi-TRP PUSCH and TBoMS without repetition.

[0122] <Second embodiment> This embodiment relates to multi-TRP PUSCH and TBoMS (N>1, K>1) with repetition.

[0123] The UE may follow either of options 2-1 and 2-2 below.

[0124] Option 2-1 For PUSCH transmission, the UE does not assume that TBoMS with repetition (N>1, K>1) is configured / indicated and that multi-TRP PUSCH is configured / indicated.

[0125] Option 2-2 For PUSCH transmission, the UE assumes that TBoMS with repetition (N>1, K>1) is configured / indicated and multi-TRP PUSCH is configured / indicated. The UE may follow one of the following options 2-2-1 to 2-2-3.

[0126] [Option 2-2-1] K repetitions may be transmitted to multiple TRPs. That is, different TCI / SRI / TPMI / power control parameters may be applied to the K repetitions. In each repetition, N slots of TBoMS may be transmitted to the same TRP. That is, the same TCI / SRI / TPMI / power control parameters may be applied to the N slots of TBoMS. Each repetition may use N slots. Multiple (two) TCI / SRI / TPMI / power control parameters may be applied to multiple (K) repetitions using one of the following patterns 1 to 8:

[0127] [Pattern 1] Cyclic mapping using the order TRP1 to TRP2: the first TCI / SRI / TPMI / power control parameters are applied to the first iteration (first N slots), the second TCI / SRI / TPMI / power control parameters are applied to the second iteration (second N slots), and the same pattern continues for the remaining iterations (remaining slots) for K iterations (N*K slots).

[0128] 8A shows an example of Pattern 1 of Option 2-2-1. In this example, N=4, K=4, and one repetition of one TB is transmitted over four slots, and four repetitions are transmitted over 16 slots. Of the four repetitions, the first and third repetitions are transmitted using the first TCI / SRI / TPMI / power control parameters (transmitted to TRP1). Of the four repetitions, the second and fourth repetitions are transmitted using the second TCI / SRI / TPMI / power control parameters (transmitted to TRP2).

[0129] [Pattern 2] Cyclic mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied in the first iteration (first N slots), the first TCI / SRI / TPMI / power control parameters are applied in the second iteration (second N slots), and the same pattern continues for the remaining iterations (remaining slots) for K iterations (N*K slots).

[0130] Figure 8B shows an example of Pattern 2 of Option 2-2-1. In this example, N=4, K=4, and one repetition of one TB is transmitted over four slots, and four repetitions are transmitted over 16 slots. Of the four repetitions, the first and third repetitions are transmitted using the second TCI / SRI / TPMI / power control parameters (transmitted to TRP2). Of the four repetitions, the second and fourth repetitions are transmitted using the first TCI / SRI / TPMI / power control parameters (transmitted to TRP1).

[0131] [Pattern 3] Sequential mapping using the order TRP1 to TRP2: the first TCI / SRI / TPMI / power control parameters are applied to the first and second iterations (first and second N slots), the second TCI / SRI / TPMI / power control parameters are applied to the third and fourth iterations (third and fourth N slots), and the same pattern continues for the remaining iterations (remaining slots) for K iterations (N*K slots).

[0132] [Pattern 4] Sequential mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied to the first and second iterations (first and second N slots), the first TCI / SRI / TPMI / power control parameters are applied to the third and fourth iterations (third and fourth N slots), and the same pattern continues for the remaining iterations (remaining slots) for K iterations (N*K slots).

[0133] [Pattern 5] Half-half mapping using the order TRP1 to TRP2: The first TCI / SRI / TPMI / power control parameters are applied for the first floor(K / 2) iterations (first floor(N*K / 2) slots) or the first ceil(K / 2) iterations (first ceil(N*K / 2) slots), and the second TCI / SRI / TPMI / power control parameters are applied for the remaining iterations (remaining slots) of the K iterations (N*K slots).

[0134] [Pattern 6] Half-half mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied for the first floor(K / 2) iterations (first floor(N*K / 2) slots) or the first ceil(K / 2) iterations (first ceil(N*K / 2) slots), and the first TCI / SRI / TPMI / power control parameters are applied for the remaining iterations (remaining slots) of the K iterations (N*K slots).

[0135] [Pattern 7] Configurable pattern using the order TRP1 to TRP2: First TCI / SRI / TPMI / power control parameters are applied for the first X iterations (first N*X slots), second TCI / SRI / TPMI / power control parameters are applied for the second X iterations (second N*X slots), and the same pattern continues for the remaining iterations (remaining slots) for K iterations (N*K slots).

[0136] [Pattern 8] Configurable pattern using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied for the first X iterations (first N*X slots), the first TCI / SRI / TPMI / power control parameters are applied for the second X iterations (second N*X slots), and the same pattern continues for the remaining iterations (remaining slots) for K iterations (N*K slots).

[0137] Pattern 1 / 2 (first mapping) of option 2-2-1 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the odd (2i+1)th and even (2i)th repetitions of the K repetitions, where i may be an integer greater than or equal to 0.

[0138] Pattern 3 / 4 (second mapping) of option 2-2-1 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the 4i+1th and 4i+2nd iterations of the K iterations and to the 4i+2nd and 4i+3rd iterations of the K iterations, where i may be an integer greater than or equal to 0.

[0139] Pattern 5 / 6 (third mapping) of option 2-2-1 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the first and second repetitions of the K repetitions.

[0140] Pattern 7 / 8 (fourth mapping) of option 2-2-1 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the 4Xj+1th to 4Xj+Xth iterations of the K iterations and to the 4Xj+X+1th to 4Xj+2Xth iterations of the K iterations, where j may be an integer greater than or equal to 0.

[0141] Only some of patterns 1 to 8 (e.g., patterns 1 to 4) may be supported.

[0142] Multiple patterns among patterns 1 to 8 may be switched by RRC signaling, MAC CE, DCI, or a combination of RRC signaling, MAC CE, and DCI (information indicating one mapping). For example, cyclic mapping or sequential mapping may be switched by RRC signaling. The order of TRPs may be switched by a DCI field in a PUSCH scheduling DCI.

[0143] Option 2-2-1 may follow at least one of the following actions A to D:

[0144] [Action A] For PUSCH repetition type A in the case where K>1, in an SRS resource set list (srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2) with the higher layer parameter usage in the SRS resource set (SRS-ResourceSet) set to 'codebook' or 'noncodebook', the UE may follow the following action a.

[0145] [[Action a]] If the PUSCH is scheduled according to DCI format 0_1 ​​or 0_2, the UE may follow the following actions a1 and a2.

[0146] ---Action a1 If available slot counting is enabled, the same symbol constellation may be applied across the N*K slots determined for the PUSCH transmission, and the PUSCH may be limited to a single transmission layer. The UE may apply the same symbol constellation in each slot and repeat the TB across the N*K slots determined for the PUSCH transmission, and the association of the first and second SRS resource sets in srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2 to each slot may be determined as shown in the following associations a1 to a4.

[0147] ----Association a1 If DCI format 0_1 ​​or 0_2 indicates codepoint "00" for the SRS resource set indicator, the first SRS resource set may be associated with all of the N*K slots determined for that PUSCH transmission.

[0148] ----Association a2 If DCI format 0_1 ​​or 0_2 indicates codepoint "01" for the SRS resource set indicator, the second SRS resource set may be associated with all N*K slots determined for that PUSCH transmission.

[0149] ----Association a3 If DCI format 0_1 ​​or DCI format 0_2 indicates codepoint “10” for the SRS resource set indicator, the association of the first and second SRS resource sets to the N*K slots determined for the PUSCH transmission may be determined as follows: When K=2, the first and second SRS resource sets are applied to the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot), respectively, determined for the PUSCH transmission. If K>2 and cyclic mapping in the PUSCH configuration is enabled, the first and second SRS resource sets are applied to the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot) of the N*K slots determined for the PUSCH transmission, respectively, and the same SRS resource set mapping pattern continues for the remaining slots of the N*K slots determined for the PUSCH transmission. If K>2 and sequential mapping in the PUSCH configuration is enabled, a first SRS resource set is applied to the first N slots (1st slot through Nth slot) and the second N slots (N+1th slot through 2Nth slot) of the N*K slots determined for the PUSCH transmission, a second SRS resource set is applied to the third N slots (2N+1th slot through 3Nth slot) and the fourth N slots (3N+1th slot through 4Nth slot) of the N*K slots determined for the PUSCH transmission, and the same SRS resource set mapping pattern continues for the remaining N*K slots determined for the PUSCH transmission.

[0150] ----Association a4 Otherwise, if DCI format 0_1 ​​or DCI format 0_2 indicates codepoint "11" for the SRS resource set indicator, the association of the first and second SRS resource sets to the N*K slots determined for the PUSCH transmission may be as follows: When K=2, the second and first SRS resource sets are applied to the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot), respectively, determined for the PUSCH transmission. If K>2 and cyclic mapping in the PUSCH configuration is enabled, the second and first SRS resource sets are applied to the first N slots (the first slot through the Nth slot) and the second N slots (the N+1th slot through the 2Nth slot) of the N*K slots determined for the PUSCH transmission, respectively, and the same SRS resource set mapping pattern continues for the remaining slots of the N*K slots determined for the PUSCH transmission. If K>2 and sequential mapping in the PUSCH configuration is enabled, the second SRS resource set is applied to the first N slots (1st slot through Nth slot) and the second N slots (N+1th slot through 2Nth slot) of the N*K slots determined for the PUSCH transmission, the first SRS resource set is applied to the third N slots (2N+1th slot through 3Nth slot) and the fourth N slots (3N+1th slot through 4Nth slot) of the N*K slots determined for the PUSCH transmission, and the same SRS resource set mapping pattern continues for the remaining N*K slots determined for the PUSCH transmission.

[0151] ---Operation a2 Otherwise (if AvailableSlotCounting is not enabled), the same symbol constellation may be applied across the N*K consecutive slots determined for the PUSCH transmission, and the PUSCH may be restricted to a single transmission layer. The UE may repeat the TB across the N*K consecutive slots determined for the PUSCH transmission, applying the same symbol constellation within each slot.

[0152] [Operation B] For PUSCH repetition type A in the case where K>1, if two SRS resource sets are configured in the SRS resource set list (srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2) with the higher layer parameter usage in the SRS resource set (SRS-ResourceSet) set to 'codebook' or 'noncodebook', the UE may follow the action b below.

[0153] [[Action b]] If the PUSCH is scheduled according to DCI format 0_1 ​​or 0_2, the UE may follow actions a1 above and b2 below.

[0154] ---Operation b2 Otherwise (if AvailableSlotCounting is not enabled), the same symbol constellation may be applied across the N*K consecutive slots determined for the PUSCH transmission, and the PUSCH may be limited to a single transmission layer. The UE may apply the same symbol constellation in each slot and repeat the TB across the N*K consecutive slots determined for the PUSCH transmission, and the association of the first and second SRS resource sets in srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2 to each slot may be determined as associations b1 to b4 below.

[0155] ----Association b1 If DCI format 0_1 ​​or 0_2 indicates codepoint "00" for the SRS resource set indicator, the first SRS resource set may be associated with all N*K consecutive slots determined for that PUSCH transmission.

[0156] ----Association b2 If DCI format 0_1 ​​or 0_2 indicates codepoint "01" for the SRS resource set indicator, the second SRS resource set may be associated with all N*K consecutive slots determined for that PUSCH transmission.

[0157] ----Association b3 If DCI format 0_1 ​​or DCI format 0_2 indicates codepoint “10” for the SRS resource set indicator, the association of the first and second SRS resource sets to the N*K consecutive slots determined for the PUSCH transmission may be determined as follows: When K=2, the first and second SRS resource sets are applied to the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot), respectively, determined for the PUSCH transmission. If K>2 and cyclic mapping in the PUSCH configuration is enabled, the first and second SRS resource sets are applied to the first N slots (the first slot through the Nth slot) and the second N slots (the N+1th slot through the 2Nth slot) of the N*K consecutive slots determined for the PUSCH transmission, respectively, and the same SRS resource set mapping pattern continues for the remaining slots of the N*K consecutive slots determined for the PUSCH transmission. If K>2 and sequential mapping in the PUSCH configuration is enabled, a first SRS resource set is applied to the first N slots (the first slot through the Nth slot) and the second N slots (the N+1th slot through the 2Nth slot) of the N*K consecutive slots determined for the PUSCH transmission, a second SRS resource set is applied to the third N slots (the 2N+1th slot through the 3Nth slot) and the fourth N slots (the 3N+1th slot through the 4Nth slot) of the N*K consecutive slots determined for the PUSCH transmission, and the same SRS resource set mapping pattern continues for the remaining slots of the N*K consecutive slots determined for the PUSCH transmission.

[0158] ----Association b4 Otherwise, if DCI format 0_1 ​​or DCI format 0_2 indicates codepoint "11" for the SRS resource set indicator, the association of the first and second SRS resource sets to the N*K consecutive slots determined for the PUSCH transmission may be as follows: When K=2, the second and first SRS resource sets are applied to the first N slots (from the first slot to the Nth slot) and the second N slots (from the N+1th slot to the 2Nth slot), respectively, determined for the PUSCH transmission. If K>2 and cyclic mapping in the PUSCH configuration is enabled, the second and first SRS resource sets are applied to the first N slots (the first slot through the Nth slot) and the second N slots (the N+1th slot through the 2Nth slot) of the N*K consecutive slots determined for the PUSCH transmission, respectively, and the same SRS resource set mapping pattern continues for the remaining slots of the N*K consecutive slots determined for the PUSCH transmission. If K>2 and sequential mapping in the PUSCH configuration is enabled, the second SRS resource set is applied to the first N slots (the first slot through the Nth slot) and the second N slots (the N+1th slot through the 2Nth slot) of the N*K consecutive slots determined for the PUSCH transmission, the first SRS resource set is applied to the third N slots (the 2N+1th slot through the 3Nth slot) and the fourth N slots (the 3N+1th slot through the 4Nth slot) of the N*K consecutive slots determined for the PUSCH transmission, and the same SRS resource set mapping pattern continues for the remaining slots of the N*K consecutive slots determined for the PUSCH transmission.

[0159] [Operation C] When two SRS resource sets are configured in an SRS resource set list (srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2) with the upper layer parameter usage in the SRS resource set (SRS-ResourceSet) set to 'codebook' or 'noncodebook', the TB processing across multiple slots may follow the following actions c1 and c2.

[0160] ---Operation c1 For an unpaired spectrum, the same symbol constellation may be applied across the N*K slots determined for the PUSCH transmission, and the PUSCH may be limited to a single transmission layer. The UE may apply the same symbol constellation in each slot and repeat the TB across the N*K slots determined for the PUSCH transmission, and the association of the first and second SRS resource sets in srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2 to each slot may be determined as in the associations a1 to a4 described above.

[0161] ---Operation c2 For a paired spectrum or a supplementary uplink band, the same symbol constellation may be applied across N*K consecutive slots determined for the PUSCH transmission, and the PUSCH may be limited to a single transmission layer. The UE may repeat the TB across N*K consecutive slots determined for the PUSCH transmission, applying the same symbol constellation in each slot.

[0162] [Operation D] If two SRS resource sets are configured in an SRS resource set list (srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2) with the upper layer parameter usage in the SRS resource set (SRS-ResourceSet) set to 'codebook' or 'noncodebook', the TB processing across multiple slots may follow c1 above and d2 below.

[0163] ---Operation d2 For a paired spectrum or a supplementary uplink band, the same symbol constellation may be applied across N*K consecutive slots determined for the PUSCH transmission, and the PUSCH may be limited to a single transmission layer. The UE may apply the same symbol constellation in each slot and repeat the TB across N*K consecutive slots determined for the PUSCH transmission, and the association of the first and second SRS resource sets in srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2 to each slot may be determined as in the above-described associations b1 to b4.

[0164] [Option 2-2-2] The N slots in each repetition may be transmitted to multiple TRPs, i.e., different TCI / SRI / TPMI / power control parameters may be applied to the N slots in each repetition. In each repetition, multiple (two) TCI / SRI / TPMI / power control parameters may be applied to the N slots using options 1-2.

[0165] Figure 9A shows an example of Pattern 1 for Option 2-2-2. In this example, N=4, K=4, and one repetition of one TB is transmitted over four slots, with four repetitions transmitted over 16 slots. Of the four slots within each repetition, transmissions in the first and third slots use first TCI / SRI / TPMI / power control parameters (sent to TRP1). Of the four slots within each repetition, transmissions in the second and fourth slots use second TCI / SRI / TPMI / power control parameters (sent to TRP2).

[0166] Figure 9B shows an example of Pattern 3 for Option 2-2-2. In this example, N=4, K=4, and one repetition of one TB is transmitted over four slots, with four repetitions transmitted over 16 slots. Of the four slots within each repetition, transmissions in the first and second slots use the first TCI / SRI / TPMI / power control parameters (sent to TRP1). Of the four slots within each repetition, transmissions in the third and fourth slots use the second TCI / SRI / TPMI / power control parameters (sent to TRP2).

[0167] Figure 10 shows an example of Pattern 5 for Option 2-2-2. In this example, N=8, K=2, and one repetition of one TB is transmitted over 8 slots, and two repetitions are transmitted over 16 slots. Of the eight slots within each repetition, transmissions in slots 1 through 4 use the first TCI / SRI / TPMI / power control parameters (sent to TRP1). Of the four slots within each repetition, transmissions in slots 5 through 8 use the second TCI / SRI / TPMI / power control parameters (sent to TRP2).

[0168] Pattern 1 / 2 (5th mapping) of Option 2-2-2 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the odd (2i+1)th and even (2i)th slots of the N slots in each repetition, where i may be an integer greater than or equal to 0.

[0169] Pattern 3 / 4 (6th mapping) of Option 2-2-2 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the 4i+1 and 4i+2 slots of the N slots in each repetition and to the 4i+2 and 4i+3 slots of the N slots in each repetition, where i may be an integer greater than or equal to 0.

[0170] Pattern 5 / 6 (seventh mapping) of option 2-2-2 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the first and second slots of the N slots in each repetition.

[0171] Pattern 7 / 8 (eighth mapping) of option 2-2-2 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to slots 4Xj+1 through 4Xj+X of the N slots in each repetition and slots 4Xj+X+1 through 4Xj+2X of the N slots in each repetition, where j may be an integer greater than or equal to 0.

[0172] [Option 2-2-3] N*K slots may be transmitted to multiple TRPs. That is, different TCI / SRI / TPMI / power control parameters may be applied to the N*K slots. Multiple (two) TCI / SRI / TPMI / power control parameters may be applied to the N*K slots using one of the following patterns 1 to 8 (similar to options 1-2):

[0173] [Pattern 1] Cyclic mapping using the order TRP1 to TRP2: The first TCI / SRI / TPMI / power control parameters are applied to the first slot, the second TCI / SRI / TPMI / power control parameters are applied to the second slot, and the same pattern continues for the remaining slots of N*K slots.

[0174] [Pattern 2] Cyclic mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied to the first slot, the first TCI / SRI / TPMI / power control parameters are applied to the second slot, and the same pattern continues for the remaining slots of N*K slots.

[0175] [Pattern 3] Sequential mapping using the order TRP1 to TRP2: The first TCI / SRI / TPMI / power control parameters are applied to the first and second slots, the second TCI / SRI / TPMI / power control parameters are applied to the third and fourth slots, and the same pattern continues for the remaining slots of N*K slots.

[0176] [Pattern 4] Sequential mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied to the first and second slots, the first TCI / SRI / TPMI / power control parameters are applied to the third and fourth slots, and the same pattern continues for the remaining slots of N*K slots.

[0177] [Pattern 5] Half-half mapping using the order TRP1 to TRP2: The first TCI / SRI / TPMI / power control parameters are applied to the first floor(N / 2) slots or the first ceil(N / 2) slots, and the second TCI / SRI / TPMI / power control parameters are applied to the remaining N*K slots.

[0178] [Pattern 6] Half-half mapping using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied to the first floor(N / 2) slots or the first ceil(N / 2) slots, and the first TCI / SRI / TPMI / power control parameters are applied to the remaining slots of N*K slots.

[0179] [Pattern 7] Configurable pattern using TRP1 to TRP2 order: First TCI / SRI / TPMI / power control parameters are applied to the first X slots, second TCI / SRI / TPMI / power control parameters are applied to the second X slots, and the same pattern continues for the remaining N*K slots.

[0180] [Pattern 8] Configurable pattern using the order TRP2 to TRP1: The second TCI / SRI / TPMI / power control parameters are applied to the first X slots, the first TCI / SRI / TPMI / power control parameters are applied to the second X slots, and the same pattern continues for the remaining slots of N*K slots.

[0181] Pattern 1 / 2 (9th mapping) of option 2-2-3 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the odd (2i+1)th slot and the even (2i)th slot of the N×K slots, where i may be an integer equal to or greater than 0.

[0182] Pattern 3 / 4 (10th mapping) of Option 2-2-3 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the 4i+1 and 4i+2 slots of the N×K slots and to the 4i+2 and 4i+3 slots of the N×K slots, where i may be an integer greater than or equal to 0.

[0183] Pattern 5 / 6 (11th mapping) of option 2-2-3 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to the first and second slots of the N×K slots.

[0184] Pattern 7 / 8 (12th mapping) of Option 2-2-3 may apply two different parameters from the first and second TCI / SRI / TPMI / power control parameter / SRS resource sets to slots 4Xj+1 through 4Xj+X among the N×K slots and slots 4Xj+X+1 through 4Xj+2X among the N×K slots, where j may be an integer greater than or equal to 0.

[0185] Only some of patterns 1 to 8 (e.g., patterns 1 to 4) may be supported.

[0186] Multiple patterns among patterns 1 to 8 may be switched by RRC signaling, MAC CE, DCI, or a combination of RRC signaling, MAC CE, and DCI (information indicating one mapping). For example, cyclic mapping or sequential mapping may be switched by RRC signaling. The order of TRPs may be switched by a DCI field in a PUSCH scheduling DCI.

[0187] [Differences between Options 2-2-2 and 2-2-3] Figure 11A shows an example of Pattern 1 (cyclic mapping) for Option 2-2-2. In this example, N=3, K=4, and one repetition of one TB is transmitted over three slots, and four repetitions are transmitted over 12 slots. Of the three slots within each repetition, transmissions in the first and third slots use first TCI / SRI / TPMI / power control parameters (sent to TRP1). Of the three slots within each repetition, transmissions in the second slot use second TCI / SRI / TPMI / power control parameters (sent to TRP2).

[0188] Figure 11B shows an example of Pattern 1 (cyclic mapping) for Option 2-2-3. In this example, N=3, K=4, and one repetition of one TB is transmitted over three slots, and four repetitions are transmitted over 12 slots. Of the 12 slots, transmissions in slots 1, 3, ... (odd-numbered slots) use first TCI / SRI / TPMI / power control parameters (sent to TRP1). Of the 12 slots, transmissions in slots 2, 4, ... (even-numbered slots) use second TCI / SRI / TPMI / power control parameters (sent to TRP2).

[0189] According to this embodiment, the UE can properly perform multi-TRP PUSCH and TBoMS with repetition.

[0190] <Third embodiment> This embodiment relates to multi-TRP PUSCH and available slot determination.

[0191] If available slot determination (eg, AvailableSlotCounting) is enabled, the UE may follow at least one of the following available slot determination methods 1 and 2.

[0192] [Method 1 for determining available slots] If at least one symbol indicated by the indexed row of the TDRA table in a slot overlaps with a DL symbol indicated by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, or overlaps with a symbol of the SS / PBCH block with the index provided by ssb-PositionsInBurst, then the slot is not counted as (is not available as) N*K slots for TBoMS / PUSCH recurrence type A scheduled by DCI format 0_1 ​​or 0_2.

[0193] [Method 2 for determining available slots] In the first and second embodiments, the TCI / SRI / TPMI / power control parameters are mapped to N*K slots determined to be available for the PUSCH transmission. The N*K slots may be N*K+U consecutive slots excluding U slots determined to be unavailable. U may be an integer equal to or greater than 0.

[0194] According to this embodiment, the UE can appropriately determine the slots available for multi-TRP PUSCH.

[0195] <Other embodiments> 《UE capability information / upper layer parameters》 Higher layer parameters (RRC IEs) / UE capabilities corresponding to the functions (features) in each of the above embodiments may be defined. The higher layer parameters may indicate whether the functions are enabled. The UE capabilities may indicate whether the UE supports the functions.

[0196] A UE for which a corresponding upper layer parameter is configured may perform the function. Alternatively, it may be specified that a UE for which a corresponding upper layer parameter is not configured shall not perform the function (for example, in accordance with Rel. 15 / 16).

[0197] A UE that reports / transmits a UE capability indicating that it supports the function may perform the function. It may also be specified that "a UE that does not report a UE capability indicating that it supports the function shall not perform the function (e.g., in accordance with Rel. 15 / 16)."

[0198] If the UE reports / transmits a UE capability indicating that it supports the function and the corresponding upper layer parameter is configured, the UE may perform the function. It may also be specified that "if the UE does not report / transmit a UE capability indicating that it supports the function or if the corresponding upper layer parameter is not configured, the UE shall not perform the function (e.g., in accordance with Rel. 15 / 16)."

[0199] Which embodiment / option / choice / function of the above multiple embodiments is used may be configured by higher layer parameters, may be reported by the UE as a UE capability, may be specified in a specification, or may be determined by the reported UE capability and the configuration of higher layer parameters.

[0200] The UE capabilities may indicate whether the UE supports at least one of the following functions: Multi-TRP PUSCH (N>1, K=1) for TBoMS without repetition, e.g., option 1-2. Multi-TRP PUSCH (N>1, K>1) for TBoMS with repetition, e.g., option 2-2.

[0201] The UE capability may indicate at least one of the following values: Maximum number of repetitions of multi-TRP PUSCH (maximum number of K). Maximum number of repetitions of multi-TRP PUSCH based on dynamic grant (maximum number of K). Maximum number of repetitions of multi-TRP PUSCH based on configured grant (maximum number of K). Maximum number of slots for TBoMS (max number of N). Maximum number of slots for TBoMS based on dynamic grant (max number of N). Maximum number of slots for TBoMS based on configured grant (max number of N).

[0202] The above UE capabilities / upper layer parameters allow the UE to achieve the above functions while maintaining compatibility with existing specifications.

[0203] (wireless communication system) The configuration of a wireless communication system according to an embodiment of the present disclosure will be described below. In this wireless communication system, communication is performed using any one of the wireless communication methods according to the above embodiments of the present disclosure or a combination thereof.

[0204] 12 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE) or 5th generation mobile communication system New Radio (5G NR) specified by the Third Generation Partnership Project (3GPP).

[0205] The wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), etc.

[0206] 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.

[0207] The wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity in which both the MN and the SN are NR base stations (gNBs) (NR-NR Dual Connectivity (NN-DC))).

[0208] The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) that are located within the macrocell C1 and form small cells C2 that are smaller than the macrocell C1. A user terminal 20 may be located within at least one of the cells. The locations and numbers of the cells and user terminals 20 are not limited to the embodiment shown in the figure. Hereinafter, when there is no need to distinguish between the base stations 11 and 12, they will be collectively referred to as base station 10.

[0209] 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).

[0210] Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may be included in FR1, and the small cell C2 may be included in FR2. For example, FR1 may be a frequency band of 6 GHz or less (sub-6 GHz), and FR2 may be a frequency band 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 be a frequency band higher than FR2.

[0211] Furthermore, the user terminal 20 may perform communication using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) in each CC.

[0212] The multiple base stations 10 may be connected by wire (for example, optical fiber conforming to the Common Public Radio Interface (CPRI), an X2 interface, or the like) or wirelessly (for example, NR communication). For example, when NR communication is used as a backhaul between the base stations 11 and 12, the base station 11 corresponding to the upper station may be called an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) may be called an IAB node.

[0213] The base station 10 may be connected to the core network 30 directly or via another base station 10. The core network 30 may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), and the like.

[0214] The user terminal 20 may be a terminal compatible with at least one of communication methods such as LTE, LTE-A, and 5G.

[0215] An Orthogonal Frequency Division Multiplexing (OFDM)-based radio access scheme may be used in the radio communication system 1. For example, Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), or the like may be used in at least one of the downlink (DL) and uplink (UL).

[0216] The radio access scheme may also be called a waveform. Note that in the wireless communication system 1, other radio access schemes (for example, other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the UL and DL radio access schemes.

[0217] In the wireless communication system 1, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20, a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc. may be used as the downlink channel.

[0218] Furthermore, in the wireless communication system 1, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20, an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc. may be used as an uplink channel.

[0219] The PDSCH transmits user data, higher layer control information, System Information Block (SIB), etc. The PUSCH may transmit user data, higher layer control information, etc. Furthermore, the PBCH may transmit Master Information Block (MIB).

[0220] Lower layer control information may be transmitted by the PDCCH. The lower layer control information may include, for example, Downlink Control Information (DCI) including scheduling information for at least one of the PDSCH and the PUSCH.

[0221] Note that the DCI for scheduling the PDSCH may be referred to as a DL assignment, a DL DCI, etc., and the DCI for scheduling the PUSCH may be referred to as an UL grant, a UL DCI, etc. Note that the PDSCH may be interpreted as DL data, and the PUSCH may be interpreted as UL data.

[0222] A control resource set (CORESET) and a search space may be used to detect the PDCCH. The CORESET corresponds to resources to search for DCI. The search space corresponds to a search region and a search method for PDCCH candidates. One CORESET may be associated with one or more search spaces. The UE may monitor a CORESET associated with a certain search space based on the search space configuration.

[0223] One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces may be called a search space set. Note that the terms "search space," "search space set," "search space setting," "search space set setting," "CORESET," "CORESET setting," etc. in the present disclosure may be read interchangeably.

[0224] The PUCCH may transmit uplink control information (UCI) including at least one of channel state information (CSI), acknowledgement information (which may be called, for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR). The PRACH may transmit a random access preamble for establishing a connection with a cell.

[0225] In the present disclosure, downlink, uplink, etc. may be expressed without adding "link." Also, various channels may be expressed without adding "Physical" to the beginning.

[0226] 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, 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 as DL-RS.

[0227] 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 the SS (PSS, SSS) and the PBCH (and DMRS for the PBCH) may be referred to as an SS / PBCH block, an SS Block (SSB), or the like. Note that the SS, SSB, and the like may also be referred to as reference signals.

[0228] Furthermore, in the wireless communication system 1, a sounding reference signal (SRS), a demodulation reference signal (DMRS), etc. may be transmitted as an uplink reference signal (UL-RS). Note that the DMRS may also be called a user equipment-specific reference signal (UE-specific reference signal).

[0229] (base station) 13 is a diagram showing an example of the configuration of a base station according to an embodiment. The base station 10 includes a control unit 110, a transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140. Note that the base station may include one or more of each of the control unit 110, the transceiver unit 120, the transceiver antenna 130, and the transmission line interface 140.

[0230] In this example, the functional blocks of the characteristic parts of the present embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0231] The control unit 110 performs overall control of the base station 10. The control unit 110 can be configured from a controller, a control circuit, and the like that are explained based on common understanding in the technical field to which the present disclosure relates.

[0232] The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may control transmission and reception using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140, measurement, etc. The control unit 110 may generate data to be transmitted as signals, control information, sequences, etc., and transfer them to the transceiver unit 120. The control unit 110 may perform call processing (setting up, releasing, etc.) of communication channels, status management of the base station 10, management of radio resources, etc.

[0233] The transceiver unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transceiver unit 120 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0234] The transmitting / receiving unit 120 may be configured as an integrated transmitting / receiving unit, or may be composed of a transmitting unit and a receiving unit. The transmitting unit may be composed of a transmission processing unit 1211 and an RF unit 122. The receiving unit may be composed of a reception processing unit 1212, an RF unit 122, and a measurement unit 123.

[0235] The transmitting and receiving antenna 130 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure pertains, such as an array antenna.

[0236] The transceiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 120 may receive the above-mentioned uplink channel, uplink reference signal, etc.

[0237] The transceiver 120 may form at least one of a transmission beam and a reception beam using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), or the like.

[0238] The transceiver 120 (transmission processing unit 1211) may perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 110, and generate a bit string to be transmitted.

[0239] The transceiver 120 (transmission processor 1211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0240] The transmitting / receiving unit 120 (RF unit 122) may perform modulation to a radio frequency band, filtering, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transmitting / receiving antenna .

[0241] 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 .

[0242] The transceiver 120 (reception processing unit 1212) may apply reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, thereby acquiring user data, etc.

[0243] The transceiver 120 (measurement unit 123) may perform measurements on the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may measure received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 110.

[0244] The transmission path interface 140 may transmit and receive signals (backhaul signaling) between devices included in the core network 30, other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0245] The transmitting section and receiving section of the base station 10 in the present disclosure may be configured by at least one of the transmitting / receiving section 120, the transmitting / receiving antenna 130, and the transmission path interface 140.

[0246] The transceiver 120 may transmit first parameters for transmission to a first transmission / reception point (TRP) and second parameters for transmission to a second TRP. The controller 110 may control reception of one transport block spanning N slots, with N parameters applied to the N slots, respectively. The N parameters may include at least one of the first parameter and the second parameter, and N may be an integer equal to or greater than 2.

[0247] The transceiver 120 may transmit first parameters for transmission to a first transmission / reception point (TRP) and second parameters for transmission to a second TRP. The controller 110 may control reception of K repetitions of one transport block across N slots. N×K parameters may be applied to the N×K slots in which the K repetitions are transmitted, respectively. The N×K parameters may include the first parameter and the second parameter, where N is an integer greater than or equal to 2 and K is an integer greater than or equal to 2.

[0248] (user terminal) 14 is a diagram showing an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transceiver unit 220, and a transceiver antenna 230. Note that the user terminal 20 may include one or more of each of the control unit 210, the transceiver unit 220, and the transceiver antenna 230.

[0249] Note that this example mainly shows functional blocks of the characteristic parts of the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0250] The control unit 210 performs overall control of the user terminal 20. The control unit 210 can be configured from a controller, a control circuit, and the like that are explained based on common understanding in the technical field to which the present disclosure relates.

[0251] The control unit 210 may control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc. using the transceiver unit 220 and the transceiver antenna 230. The control unit 210 may generate data, control information, sequences, etc. to be transmitted as signals, and transfer them to the transceiver unit 220.

[0252] The transceiver unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transceiver unit 220 may be configured from a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0253] The transmitting / receiving unit 220 may be configured as an integrated transmitting / receiving unit, or may be composed of a transmitting unit and a receiving unit. The transmitting unit may be composed of a transmission processing unit 2211 and an RF unit 222. The receiving unit may be composed of a reception processing unit 2212, an RF unit 222, and a measurement unit 223.

[0254] The transmitting / receiving antenna 230 can be configured as an antenna described based on common understanding in the technical field to which the present disclosure pertains, such as an array antenna.

[0255] The transceiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0256] The transceiver 220 may form at least one of a transmission beam and a reception beam using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), or the like.

[0257] The transceiver 220 (transmission processing unit 2211) may perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 210, and generate a bit string to be transmitted.

[0258] The transceiver 220 (transmission processor 2211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0259] Whether or not to apply DFT processing may be based on the setting of transform precoding. When transform precoding is enabled for a certain channel (e.g., PUSCH), the transceiver unit 220 (transmission processing unit 2211) may perform DFT processing as the transmission processing to transmit the channel using a DFT-s-OFDM waveform, and when transform precoding is not enabled, the transceiver unit 220 may not perform DFT processing as the transmission processing.

[0260] The transmitting / receiving unit 220 (RF unit 222) may perform modulation to a radio frequency band, filtering, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transmitting / receiving antenna 230.

[0261] 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.

[0262] The transceiver 220 (reception processing unit 2212) may apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to acquire user data, etc.

[0263] The transceiver 220 (measurement unit 223) may perform measurements on the received signal. For example, the measurement unit 223 may perform RRM measurement, CSI measurement, etc. based on the received signal. The measurement unit 223 may measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

[0264] The transmitting section and receiving section of the user terminal 20 in the present disclosure may be configured by at least one of the transmitting / receiving section 220 and the transmitting / receiving antenna 230.

[0265] The transceiver 220 may receive first parameters for transmission to a first transmission / reception point (TRP) and second parameters for transmission to a second TRP. The controller 210 may control transmission of one transport block across N slots and apply N parameters to the N slots, respectively. The N parameters may include at least one of the first parameter and the second parameter, where N may be an integer greater than or equal to 2.

[0266] The controller 210 may perform one of the following mappings: a first mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered slots of the N slots; a second mapping that applies two different parameters from the first parameter and the second parameter to the 4i+1th and 4i+2th slots of the N slots and the 4i+2nd and 4i+3rd slots of the N slots; a third mapping that applies two different parameters from the first parameter and the second parameter to the first and second slots of the N slots; or a fourth mapping that applies two different parameters from the first parameter and the second parameter to the 4Xj+1th to 4Xj+Xth slots of the N slots and the 4Xj+X+1st to 4Xj+2Xth slots of the N slots. i may be an integer greater than or equal to 0, j may be an integer greater than or equal to 0, and X may be an integer greater than or equal to 1.

[0267] The transceiver 220 may receive information indicating one of the first mapping, the second mapping, the third mapping, and the fourth mapping.

[0268] The N parameters may be N first parameters or N second parameters.

[0269] The transceiver 220 may receive first parameters for transmission to a first transmission / reception point (TRP) and second parameters for transmission to a second TRP. The controller 210 may control transmission of K repetitions of one transport block across N slots and apply N×K parameters to the N×K slots in which the K repetitions are transmitted, respectively. The N×K parameters may include the first parameter and the second parameter, where N is an integer greater than or equal to 2 and K is an integer greater than or equal to 2.

[0270] the control unit 210 selects: a first mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered repetitions among the K repetitions; a second mapping that applies two different parameters from the first parameter and the second parameter to 4i+1th and 4i+2nd repetitions among the K repetitions and 4i+2nd and 4i+3rd repetitions among the K repetitions; a third mapping that applies two different parameters from the first parameter and the second parameter to a first half repetition and a second half repetition among the K repetitions; a fourth mapping that applies two different parameters from the first parameter and the second parameter to a 4Xj+1th to 4Xj+Xth repetition among the K repetitions and a 4Xj+X+1th to 4Xj+2Xth repetition among the K repetitions; and a fifth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered slots among N slots in each repetition. a sixth mapping that applies two different parameters from the first parameter and the second parameter to the 4i+1th and 4i+2nd slots of the N slots in each repetition and to the 4i+2nd and 4i+3rd slots of the N slots in each repetition; a seventh mapping that applies two different parameters from the first parameter and the second parameter to the first half slot and the second half slot of the N slots in each repetition; and a seventh mapping that applies two different parameters from the first parameter and the second parameter to the 4Xj+1th to 4Xj+Xth slots of the N slots in each repetition. an eighth mapping that applies two different parameters from the first parameter and the second parameter to the 4Xj+X+1th to 4Xj+2Xth slots of the N slots in each repetition; a ninth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered slots and even-numbered slots of the N×K slots; and a ninth mapping that applies two different parameters from the first parameter and the second parameter to the 4i+1th and 4i+2nd slots of the N×K slots and the 4i+2nd and 4i+3rd slots of the N×K slots.One of the following mappings may be performed: a tenth mapping that applies two different parameters from the first parameter and the second parameter; an eleventh mapping that applies two different parameters from the first parameter and the second parameter to the first and second slots of the N×K slots; and a twelfth mapping that applies two different parameters from the first parameter and the second parameter to the 4Xj+1th to 4Xj+Xth slots of the N×K slots and the 4Xj+X+1th to 4Xj+2Xth slots of the N×K slots. i may be an integer equal to or greater than 0, j may be an integer equal to or greater than 0, and X may be an integer equal to or greater than 1.

[0271] The transceiver 220 may receive information indicating the one mapping.

[0272] The N×K slots are slots excluding U slots determined to be unavailable among N×K+U consecutive slots, where U may be an integer equal to or greater than 0.

[0273] (Hardware configuration) The block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wires, wirelessly, etc.) and these multiple devices. The functional block may also be realized by combining the single device or multiple devices with software.

[0274] Here, the functions include, but are not limited to, judgment, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, deeming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission may be called a transmitting unit, transmitter, etc. As mentioned above, the implementation method of each is not particularly limited.

[0275] For example, a base station, a user terminal, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 15 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment. The above-described base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0276] In this disclosure, terms such as apparatus, circuit, device, section, unit, etc. may be read interchangeably. The hardware configurations of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the drawings, or may be configured to exclude some of the devices.

[0277] For example, although only one processor 1001 is shown, there may be multiple processors. Furthermore, processing may be performed by one processor, or processing may be performed by two or more processors simultaneously, serially, or in other ways. Furthermore, processor 1001 may be implemented by one or more chips.

[0278] 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 a processor 1001 and a memory 1002, causing the processor 1001 to perform calculations, control communication via the communication device 1004, and control at least one of reading and writing data in the memory 1002 and the storage 1003.

[0279] The processor 1001, for example, runs an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, at least a part of the above-mentioned control unit 110 (210), transmission / reception unit 120 (220), etc. may be realized by the processor 1001.

[0280] The processor 1001 also reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 110 (210) may be realized by a control program stored in the memory 1002 and running on the processor 1001, and the other functional blocks may be realized in a similar manner.

[0281] The memory 1002 is a computer-readable recording medium and may be configured by at least one of, for example, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a random access memory (RAM), or other suitable storage medium. The memory 1002 may also be referred to as a register, a cache, a main memory, or the like. The memory 1002 may store executable programs (program codes), software modules, and the like for implementing a wireless communication method according to an embodiment of the present disclosure.

[0282] Storage 1003 is a computer-readable recording medium and may be constituted by at least one of, for example, a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disc (e.g., a Compact Disc ROM (CD-ROM)), a digital versatile disc, a Blu-ray disc), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, stick, key drive), a magnetic stripe, a database, a server, or other suitable storage medium. Storage 1003 may also be referred to as a secondary storage device.

[0283] The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, or a communication module. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmission / reception unit 120 (220), transmission / reception antenna 130 (230), etc. may be realized by the communication device 1004. The transmission / reception unit 120 (220) may be implemented as a transmission unit 120a (220a) and a reception unit 120b (220b) that are physically or logically separated.

[0284] The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives input from the outside. The output device 1006 is an output device (for example, a display, a speaker, a light emitting diode (LED) lamp, etc.) that outputs to the outside. The input device 1005 and the output device 1006 may be integrated into one device (for example, a touch panel).

[0285] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0286] Furthermore, the base station 10 and the user terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized using such hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0287] (Variation) Note that terms explained in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may be interchangeable. A signal may also be a message. A reference signal may be abbreviated as RS, and may also be called a pilot, pilot signal, etc. depending on the applicable standard. A component carrier (CC) may also be called a cell, frequency carrier, carrier frequency, etc.

[0288] A radio frame may be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting a radio frame may be called a subframe. Furthermore, a subframe may be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0289] Here, the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel, and may indicate at least one of, for example, a subcarrier spacing (SCS), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (TTI), the number of symbols per TTI, a radio frame structure, a specific filtering process performed by a transceiver in the frequency domain, and a specific windowing process performed by a transceiver in the time domain.

[0290] A slot may be composed of one or more symbols in the time domain (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol), and may be a time unit based on numerology.

[0291] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (PUSCH) mapping type B.

[0292] A radio frame, a subframe, a slot, a minislot, and a symbol all represent time units for transmitting signals. The radio frame, the subframe, the slot, the minislot, and the symbol may be referred to by other names corresponding to the radio frame, the subframe, the slot, the minislot, and the symbol. Note that the time units such as a frame, a subframe, a slot, a minislot, and a symbol in the present disclosure may be interchangeable.

[0293] For example, one subframe may be referred to as a TTI, or multiple consecutive subframes may be referred to as a TTI, or one slot or one minislot may be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc., instead of a subframe.

[0294] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. However, the definition of TTI is not limited to this.

[0295] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0296] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0297] A TTI having a time length of 1 ms may be called a regular TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0298] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and equal to or greater than 1 ms.

[0299] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may also be determined based on numerology.

[0300] In addition, an RB may include one or more symbols in the time domain and may have a length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

[0301] Note that one or more RBs may also be called a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0302] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0303] A Bandwidth Part (BWP), which may also be referred to as a fractional bandwidth, may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a common reference point of the carrier. PRBs may be defined in a given BWP and numbered within that BWP.

[0304] The BWP may include an UL BWP (a BWP for UL) and a DL BWP (a BWP for DL). One or more BWPs may be configured for a UE within one carrier.

[0305] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0306] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc. may be changed in various ways.

[0307] Furthermore, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values ​​from a predetermined value, or may be expressed using other corresponding information. For example, a radio resource may be indicated by a predetermined index.

[0308] The names used for parameters and the like in this disclosure are not intended to be limiting in any way. Furthermore, the mathematical expressions and the like using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0309] The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0310] Furthermore, information, signals, etc. may be output from a higher layer to a lower layer and / or from a lower layer to a higher layer. Information, signals, etc. may be input / output via multiple network nodes.

[0311] Input and output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input and output information, signals, etc. may be overwritten, updated, or added. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to another device.

[0312] Notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, notification of information in the present disclosure may be performed by physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB) and System Information Block (SIB)), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0313] Note that the physical layer signaling may be called Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. Furthermore, the RRC signaling may be called an RRC message, such as an RRC connection setup message or an RRC connection reconfiguration message. Furthermore, the MAC signaling may be notified using, for example, a MAC Control Element (CE).

[0314] Furthermore, notification of specified information (e.g., notification that "it is X") is not limited to explicit notification, but may be made implicitly (e.g., by not notifying the specified information or by notifying other information).

[0315] The determination may be made by a value represented by one bit (0 or 1), by a Boolean value represented by true or false, or by a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0316] Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0317] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0318] As used in this disclosure, the terms "system" and "network" may be used interchangeably. A "network" may refer to devices included in the network (e.g., base stations).

[0319] In the present disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "Quasi-Co-Location (QCL)," "Transmission Configuration Indication state (TCI state)," "spatial relation," "spatial domain filter," "transmit power," "phase rotation," "antenna port," "antenna port group," "layer," "number of layers," "rank," "resource," "resource set," "resource group," "beam," "beam width," "beam angle," "antenna," "antenna element," "panel," etc. may be used interchangeably.

[0320] In this disclosure, terms such as "base station (BS)," "radio base station," "fixed station," "NodeB," "eNB (eNodeB)," "gNB (gNodeB)," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "cell," "sector," "cell group," "carrier," "component carrier," etc. may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, picocell, etc.

[0321] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can be provided with communication service by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The term "cell" or "sector" refers to a part or the entire coverage area of ​​a base station and / or base station subsystem that provides communication service within this coverage.

[0322] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0323] A mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0324] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc. Note that at least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.

[0325] The mobile body is a movable object that can move at any speed and naturally includes cases where the mobile body is stationary. Examples of the mobile body include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones, multicopters, quadcopters, balloons, and objects mounted thereon. The mobile body may also be a mobile body that moves autonomously based on an operation command.

[0326] The mobile object may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Note that at least one of the base station and the mobile station may also include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0327] 16 is a diagram showing an example of a vehicle according to an embodiment. A vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, an electronic control unit 49, various sensors (including a current sensor 50, an RPM sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0328] The drive unit 41 is configured with at least one of an engine, a motor, and a hybrid of an engine and a motor, for example. The steering unit 42 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.

[0329] The electronic control unit 49 is composed of a microprocessor 61, memory (ROM, RAM) 62, and a communication port (e.g., an input / output (IO) port) 63. Signals are input to the electronic control unit 49 from various sensors 50-58 provided in the vehicle. The electronic control unit 49 may also be called an Electronic Control Unit (ECU).

[0330] The signals from the various sensors 50-58 include a current signal from a current sensor 50 that senses the current of the motor, a rotation speed signal of the front wheels 46 / rear wheels 47 obtained by a rotation speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 obtained by an air pressure sensor 52, a vehicle speed signal obtained by a vehicle speed sensor 53, an acceleration signal obtained by an acceleration sensor 54, a depression amount signal of the accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 obtained by a brake pedal sensor 56, an operation signal of the shift lever 45 obtained by a shift lever sensor 57, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58.

[0331] The information service unit 59 is composed of various devices, such as a car navigation system, an audio system, speakers, a display, a television, and a radio, for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 59 uses information acquired from external devices via the communication module 60 or the like to provide various information / services (for example, multimedia information / multimedia services) to the occupants of the vehicle 40.

[0332] The information service unit 59 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0333] The driving assistance system unit 64 is configured with various devices that provide functions for preventing accidents and reducing the driver's driving burden, such as millimeter-wave radar, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyro systems (e.g., Inertial Measurement Units (IMUs), Inertial Navigation Systems (INSs)), Artificial Intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driving assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driving assistance functions or autonomous driving functions.

[0334] The communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) via the communication port 63 to and from the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58, which are provided in the vehicle 40.

[0335] The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with an external device. For example, it transmits and receives various information to and from the external device via wireless communication. The communication module 60 may be located either inside or outside the electronic control unit 49. The external device may be, for example, the above-mentioned base station 10 or user terminal 20. Furthermore, the communication module 60 may be, for example, at least one of the above-mentioned base station 10 and user terminal 20 (or may function as at least one of the base station 10 and user terminal 20).

[0336] The communication module 60 may transmit at least one of signals from the above-mentioned various sensors 50-58 input to the electronic control unit 49, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 59 to an external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 60 may include information based on the above-mentioned input.

[0337] The communication module 60 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from external devices and displays it on an information service unit 59 provided in the vehicle. The information service unit 59 may also be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH received by the communication module 60 (or data / information decoded from the PDSCH)).

[0338] Furthermore, the communication module 60 stores various information received from external devices in a memory 62 that can be used by the microprocessor 61. Based on the information stored in the memory 62, the microprocessor 61 may control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, various sensors 50-58, and the like provided in the vehicle 40.

[0339] Furthermore, a base station in the present disclosure may be read as a user terminal. For example, the aspects / embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D) or Vehicle-to-Everything (V2X)). In this case, the user terminal 20 may be configured to have the functions of the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to terminal-to-terminal communication (for example, "sidelink"). For example, terms such as uplink channel and downlink channel may be read as sidelink channel.

[0340] Similarly, the user terminal in the present disclosure may be read as a base station, in which case the base station 10 may be configured to have the functions of the user terminal 20 described above.

[0341] In the present disclosure, an operation described as being performed by a base station may be performed by its upper node in some cases. It is apparent that in a network including one or more network nodes having a base station, various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (such as, but not limited to, a Mobility Management Entity (MME) and a Serving-Gateway (S-GW)), or a combination thereof.

[0342] Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Furthermore, the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the specific order presented.

[0343] Each aspect / embodiment described in the present disclosure may be a technology other than Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or decimal number)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE The present invention may be applied to systems that use 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other appropriate wireless communication methods, or to next-generation systems that are expanded, modified, created, or defined based on these. It may also be applied to a combination of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

[0344] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0345] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0346] The term "determining," as used in this disclosure, may encompass a wide variety of actions. For example, "determining" may be considered to be judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry (e.g., looking up in a table, database, or another data structure), ascertaining, etc.

[0347] Additionally, "determining" may be considered to be "determining" receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), etc.

[0348] Also, "decision" may be considered to be "deciding" resolving, selecting, choosing, establishing, comparing, etc. In other words, "decision" may be considered to be "deciding" on some action.

[0349] Furthermore, "judgment (decision)" may be read as "assuming," "expecting," "considering," or the like.

[0350] The "maximum transmit power" in this disclosure may mean the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0351] As used in this disclosure, the terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access."

[0352] In this disclosure, when two elements are connected, they may be considered to be "connected" or "coupled" to one another using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy having wavelengths in the radio frequency range, microwave range, light (both visible and invisible) range, etc., as some non-limiting and non-exhaustive examples.

[0353] In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0354] When used in this disclosure, the terms "include," "including," and variations thereof are intended to be inclusive, similar to the term "comprising." Furthermore, when used in this disclosure, the term "or" is not intended to be an exclusive or.

[0355] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0356] Although the invention according to the present disclosure has been described in detail above, it is clear to those skilled in the art that the invention according to the present disclosure is not limited to the embodiments described in the present disclosure. The invention according to the present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined by the description of the claims. Therefore, the description of the present disclosure is intended to be illustrative and explanatory and does not impose any limiting meaning on the invention according to the present disclosure.

Claims

1. a receiving unit for receiving first parameters for transmission to a first transmission / reception point (TRP) and second parameters for transmission to a second TRP; a control unit that controls transmission of K repetitions of a transmission of one transport block across N slots, and applies N×K parameters to the N×K slots in which the K repetitions are transmitted, respectively, the N×K parameters including the first parameter and the second parameter, where N is an integer greater than or equal to 2 and K is an integer greater than or equal to 2; the control unit selects a first mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered repetitions among the K repetitions; a second mapping that applies two different parameters from the first parameter and the second parameter to 4i+1th and 4i+2nd repetitions among the K repetitions and 4i+2nd and 4i+3rd repetitions among the K repetitions; a third mapping that applies two different parameters from the first parameter and the second parameter to a first half repetition and a second half repetition among the K repetitions; a fourth mapping that applies two different parameters from the first parameter and the second parameter to a 4Xj+1th to 4Xj+Xth repetition among the K repetitions and a 4Xj+X+1st to 4Xj+2Xth repetition among the K repetitions; a fifth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered slots among N slots in each repetition; a sixth mapping that applies two different parameters from the first parameter and the second parameter to the 4i+1th and 4i+2nd slots of the N slots in each repetition and to the 4i+2nd and 4i+3rd slots of the N slots in each repetition; a seventh mapping that applies two different parameters from the first parameter and the second parameter to the first half slot and the second half slot of the N slots in each repetition; and slots 4Xj+1th to 4Xj+Xth of the N slots in each repetition. an eighth mapping that applies two different parameters from the first parameter and the second parameter to slots 4Xj+X+1 through 4Xj+2X of the N slots in each repetition; a ninth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered slots and even-numbered slots of the N×K slots; and a ninth mapping that applies two different parameters from the first parameter and the second parameter to slots 4i+1 and 4i+2 of the N×K slots and slots 4i+2 and 4i+3 of the N×K slots.performing one of a tenth mapping that applies two different parameters from the first parameter and the second parameter, an eleventh mapping that applies two different parameters from the first parameter and the second parameter to first and second slots of the N×K slots, and a twelfth mapping that applies two different parameters from the first parameter and the second parameter to slots 4Xj+1 to 4Xj+X of the N×K slots and slots 4Xj+X+1 to 4Xj+2X of the N×K slots, wherein i is an integer greater than or equal to 0, j is an integer greater than or equal to 0, and X is an integer greater than or equal to 1; The receiving unit receives information instructing the one mapping.

2. The terminal according to claim 1 , wherein the N×K slots are slots excluding U slots determined to be unavailable among N×K+U consecutive slots, where U is an integer greater than or equal to 0.

3. receiving first parameters for transmission to a first transmission / reception point (TRP) and second parameters for transmission to a second TRP; controlling K repetitions of transmission of one transport block across N slots, and applying N×K parameters to the N×K slots in which the K repetitions are transmitted, respectively, the N×K parameters including the first parameter and the second parameter, where N is an integer greater than or equal to 2 and K is an integer greater than or equal to 2, the steps including: a first mapping applying two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered repetitions of the K repetitions; a second mapping applying two different parameters from the first parameter and the second parameter to 4i+1-th and 4i+2-th repetitions of the K repetitions and 4i+2-th and 4i+3-th repetitions of the K repetitions; a third mapping applying two different parameters from the first parameter and the second parameter to a first half repetition and a second half repetition of the K repetitions; and a third mapping applying two different parameters from the first parameter and the second parameter to a first half repetition and a second half repetition of the K repetitions. a fourth mapping that applies two different parameters from the first parameter and the second parameter to the 4Xj+1th to 4Xj+Xth repetitions; a fifth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered slots and even-numbered slots of the N slots in each repetition; a sixth mapping that applies two different parameters from the first parameter and the second parameter to the 4i+1th and 4i+2nd slots of the N slots in each repetition and to the 4i+2nd and 4i+3rd slots of the N slots in each repetition; a seventh mapping that applies two different parameters from the first parameter and the second parameter to the first half slot and the second half slot of the N slots in each repetition; and an eighth mapping that applies two different parameters from the first parameter and the second parameter to the 4Xj+1th to 4Xj+Xth slots of the N slots in each repetition and to the 4Xj+X+1st to 4Xj+2Xth slots of the N slots in each repetition.performing one of a ninth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered slots and even-numbered slots of the N×K slots; a tenth mapping that applies two different parameters from the first parameter and the second parameter to 4i+1-th and 4i+2-th slots of the N×K slots and 4i+2-th and 4i+3-th slots of the N×K slots; an eleventh mapping that applies two different parameters from the first parameter and the second parameter to first and second slots of the N×K slots; and a twelfth mapping that applies two different parameters from the first parameter and the second parameter to 4Xj+1-th to 4Xj+X-th slots of the N×K slots and 4Xj+X+1-th to 4Xj+2X-th slots of the N×K slots, wherein i is an integer greater than or equal to 0, j is an integer greater than or equal to 0, and X is an integer greater than or equal to 1; and receiving information indicating the one mapping.

4. a transmitter that transmits first parameters for transmission to a first transmission / reception point (TRP) and second parameters for transmission to a second TRP; a control unit that controls reception of K repetitions of one transport block across N slots, wherein N×K parameters are applied to the N×K slots in which the K repetitions are transmitted, respectively, the N×K parameters including the first parameter and the second parameter, N being an integer greater than or equal to 2, and K being an integer greater than or equal to 2; the control unit selects a first mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered repetitions among the K repetitions; a second mapping that applies two different parameters from the first parameter and the second parameter to 4i+1th and 4i+2nd repetitions among the K repetitions and 4i+2nd and 4i+3rd repetitions among the K repetitions; a third mapping that applies two different parameters from the first parameter and the second parameter to a first half repetition and a second half repetition among the K repetitions; a fourth mapping that applies two different parameters from the first parameter and the second parameter to a 4Xj+1th to 4Xj+Xth repetition among the K repetitions and a 4Xj+X+1st to 4Xj+2Xth repetition among the K repetitions; a fifth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered and even-numbered slots among N slots in each repetition; a sixth mapping that applies two different parameters from the first parameter and the second parameter to the 4i+1th and 4i+2nd slots of the N slots in each repetition and to the 4i+2nd and 4i+3rd slots of the N slots in each repetition; a seventh mapping that applies two different parameters from the first parameter and the second parameter to the first half slot and the second half slot of the N slots in each repetition; and slots 4Xj+1th to 4Xj+Xth of the N slots in each repetition. an eighth mapping that applies two different parameters from the first parameter and the second parameter to slots 4Xj+X+1 through 4Xj+2X of the N slots in each repetition; a ninth mapping that applies two different parameters from the first parameter and the second parameter to odd-numbered slots and even-numbered slots of the N×K slots; and a ninth mapping that applies two different parameters from the first parameter and the second parameter to slots 4i+1 and 4i+2 of the N×K slots and slots 4i+2 and 4i+3 of the N×K slots.performing one of a tenth mapping that applies two different parameters from the first parameter and the second parameter, an eleventh mapping that applies two different parameters from the first parameter and the second parameter to first and second slots of the N×K slots, and a twelfth mapping that applies two different parameters from the first parameter and the second parameter to slots 4Xj+1 to 4Xj+X of the N×K slots and slots 4Xj+X+1 to 4Xj+2X of the N×K slots, wherein i is an integer greater than or equal to 0, j is an integer greater than or equal to 0, and X is an integer greater than or equal to 1; The base station, wherein the transmitter transmits information instructing the one mapping.

5. A system having a terminal according to claim 1 and a base station, The base station comprises a transmitter that transmits the first parameter, the second parameter, and information indicating the one mapping.

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