Terminal, wireless communication method, and wireless communication system

Abstract

This terminal comprises: a control unit for controlling whether or not to repeatedly transmit information blocks by a time resource spanning over a plurality of time resource units; and a transmission unit for transmitting the information blocks over the plurality of time resource units in each of the repetitions if the repetition is to be performed.

Description

[Technical Field]

[0001] The present disclosure relates to a terminal 、 Wireless communication method and wireless communication systems Regarding. [Background technology]

[0002] Long Term Evolution (LTE) has been specified for Universal Mobile Telecommunication System (UMTS) networks, aiming to achieve higher data rates and lower latency. Furthermore, successor systems to LTE are also being considered, aiming to achieve even wider bandwidth and higher speeds than LTE. Examples of successor systems to LTE include LTE-Advanced (LTE-A), Future Radio Access (FRA), 5th generation mobile communication system (5G), 5G plus (5G+), Radio Access Technology (New-RAT), and New Radio (NR).

[0003] For example, in NR, a method for processing a block of information (e.g., a transport block (TB)) to be transmitted via multiple radio resources (e.g., a physical uplink shared channel allocated to multiple slots) is being considered (Non-Patent Document 2). [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] "New WID on NR coverage enhancements", RP-202928, 3GPP TSG RAN meeting #90e, 3GPP, December 2020 [Non-patent document 2] "RAN1 Chairman's Notes", 3GPP TSG RAN WG1 Meeting #104-ee-Meeting, 3GPP, February 2021 Summary of the Invention

[0005] There is room for improvement in how to extend the scheme for transmitting blocks of information over multiple radio resources.

[0006] One aspect of the present disclosure is a terminal that extends the method of transmitting blocks of information over multiple radio resources. ,wireless Communication Method and wireless communication systems to provide.

[0007] A terminal according to one aspect of the present disclosure includes a control unit that controls whether to repeat transmission of an information block using a time resource spanning multiple time resource units, and a transmission unit that, if the repetition is performed, transmits the information block across multiple time resource units in each of the repetitions.

[0008] A wireless communication method according to one aspect of the present disclosure controls whether to repeat transmission of an information block using a time resource spanning multiple time resource units, and if the repetition is performed, transmits the information block across multiple of the time resource units in each of the repetitions. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 10 is a diagram illustrating an example of PUSCH allocation by TBoMS. [Figure 2] 1 is a diagram illustrating an example of a wireless communication system according to an embodiment. [Figure 3] FIG. 2 is a block diagram illustrating an example of a configuration of a base station according to an embodiment. [Figure 4] FIG. 2 is a block diagram illustrating an example of a configuration of a terminal according to an embodiment. [Figure 5]FIG. 10 is a diagram illustrating an example of a determination method 1. [Figure 6] FIG. 10 is a diagram illustrating an example of repeated transmission of TBoMS. [Figure 7A] FIG. 10 is a diagram showing an example of bit selection in selection method 1 of transmission method 2. [Figure 7B] FIG. 10 is a diagram showing an example of bit selection in selection method 1 of transmission method 2. [Figure 8] FIG. 10 is a diagram illustrating an example of the relationship between RV id and TBoMS transmission opportunities. [Figure 9A] FIG. 10 is a diagram illustrating an example of bit selection in transmission method 3. [Figure 9B] FIG. 10 is a diagram illustrating an example of bit selection in transmission method 3. [Figure 10] FIG. 2 is a diagram illustrating an example of a hardware configuration of a base station and a terminal according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] <Knowledge that led to this disclosure> For example, in 3GPP Release-17, it has been agreed to consider Coverage Enhancement (CE) in NR (Non-Patent Document 1).

[0011] Regarding coverage extension, it has been agreed to study a method for determining time resources of a physical uplink shared channel allocated to multiple slots, specifically, TB processing over multi-slot PUSCH (TBoMS), which processes transport blocks (TBs) via a PUSCH (Physical Uplink Shared Channel) (Non-Patent Document 2).

[0012] TBoMS may be interpreted as a technique for transmitting one transport block using multiple slots.

[0013] Fig. 1 is a diagram showing an example of PUSCH allocation by TBoMS. Specifically, Fig. 1 shows an example of PUSCH allocation by TBoMS in accordance with Type A repetition like TDRA (Time Domain Resource Allocation) and Type B repetition like TDRA. Note that Types A and B may mean Repetition types A and B.

[0014] TBoMS may have the following advantages:

[0015] · Because resources are allocated across multiple slots, the coding rate (code rate) decreases. · The longer the code sequence, the better the channel coding gain. -The amount of headers in upper layers can be reduced compared to when sending multiple TB.

[0016] In addition, in 3GPP Release-15 and the like, when determining the size of TB (TBS) transmitted via PUSCH (similarly to PDSCH), the number of REs (N RE ) is calculated, and then the calculated N RE Using the number of information bits (N info ) is calculated. Then, TBS is calculated as N info Here, the TBS is determined on the assumption that the PUSCH is allocated to one slot. For example, by determining an appropriate TBS, it is possible to achieve a specified target code rate even when transmitting TBoMS. In other words, by determining an appropriate TBS, it is possible to bring the actual code rate when transmitting TBoMS closer to the specified target code rate. Furthermore, by determining an appropriate TBS, it is possible to improve the efficiency of coverage extension by TBoMS.

[0017] It is also desirable to further expand coverage using TBoMS.

[0018] Therefore, in this embodiment, a wireless communication system that repeatedly transmits TBoMS will be described as an example of a method for coverage extension.

[0019] <Example of a wireless communication system> 2 is a diagram illustrating an example of a wireless communication system 10 according to an embodiment. The wireless communication system 10 may be a wireless communication system conforming to New Radio (NR). The wireless communication system 10 includes a Next Generation-Radio Access Network 20 (hereinafter, referred to as NG-RAN 20) and a terminal 200.

[0020] The wireless communication system 10 may be a wireless communication system conforming to a standard called 5G, Beyond 5G, 5G Evolution, or 6G.

[0021] The NG-RAN 20 includes base stations 100 (base station 100A and base station 100B). Note that the number of base stations 100 and the number of terminals 200 are not limited to the example shown in FIG.

[0022] The NG-RAN 20 includes multiple NG-RAN nodes, specifically, gNBs (or ng-eNBs), and is connected to a 5G core network (5GC, not shown). The NG-RAN 20 and the 5GC may be simply referred to as a "network."

[0023] Base station 100 may be referred to as an NG-RAN Node, ng-eNB, eNodeB (eNB), or gNodeB (gNB). Terminal 200 may be referred to as User Equipment (UE). Base station 100 may also be considered as a device included in a network to which terminal 200 is connected.

[0024] Base station 100 performs wireless communication with terminal 200. For example, the performed wireless communication complies with NR. At least one of base station 100 and terminal 200 may support Massive MIMO (Multiple-Input Multiple-Output), which generates a more directional beam (BM) by controlling radio signals transmitted from multiple antenna elements. Furthermore, at least one of base station 100 and terminal 200 may support Carrier Aggregation (CA), which aggregates and uses multiple component carriers (CC). Furthermore, at least one of base station 100 and terminal 200 may support Dual Connectivity (DC), which performs communication between terminal 200 and each of multiple base stations 100.

[0025] The wireless communication system 10 may support multiple frequency bands. For example, the wireless communication system 10 supports Frequency Range (FR) 1 and FR 2. The frequency bands of each FR are, for example, as follows: FR1: 410MHz~7.125GHz FR2: 24.25GHz~52.6GHz

[0026] FR1 may use a Sub-Carrier Spacing (SCS) of 15 kHz, 30 kHz, or 60 kHz, and may use a bandwidth (BW) of 5 MHz to 100 MHz. FR2, for example, is a higher frequency than FR1. FR2 may use an SCS of 60 kHz or 120 kHz, and may use a bandwidth (BW) of 50 MHz to 400 MHz. FR2 may also include an SCS of 240 kHz.

[0027] The wireless communication system 10 according to the present embodiment may support a frequency band higher than the FR2 frequency band. For example, the wireless communication system 10 according to the present embodiment may support a frequency band exceeding 52.6 GHz up to 114.25 GHz.

[0028] Alternatively, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) having a larger Sub-Carrier Spacing (SCS) than the above-mentioned example may be applied. Furthermore, DFT-S-OFDM may be applied to both the uplink and the downlink, or to either one of them.

[0029] The wireless communication system may support coverage enhancement (CE) that expands the coverage of a cell (or a physical channel) formed by the base station 100. The coverage enhancement may provide a mechanism for increasing the success rate of reception of various physical channels.

[0030] For example, base station 100 supports repeated transmission of downlink signals (for example, signals using a Physical Downlink Shared Channel (PDSCH)). For example, terminal 200 supports repeated transmission of uplink signals (for example, a Physical Uplink Shared Channel (PUSCH)).

[0031] In a wireless communication system, a slot configuration pattern for time division duplexing (TDD) may be set. For example, DDDSU (D: Downlink (DL) symbol, S: DL / Uplink (UL) or guard symbol, U: UL symbol) may be specified (see 3GPP TS38.101-4).

[0032] In addition, in a wireless communication system, a demodulation reference signal (DMRS) can be used for each slot to perform channel estimation of a PUSCH (or a PUCCH (Physical Uplink Control Channel)). In addition, a DMRS allocated to each of multiple slots can be used to perform channel estimation of a PUSCH (or a PUCCH). Such channel estimation may be called joint channel estimation. Alternatively, it may be called by another name, such as cross-slot channel estimation.

[0033] Terminal 200 may transmit a DMRS allocated to (spanning) multiple slots so that base station 100 can perform joint channel estimation using the DMRS.

[0034] Furthermore, in a wireless communication system, for coverage extension, TB processing over multi-slot PUSCH (TBoMS) may be applied, which processes a transport block (TB) via a PUSCH allocated to multiple slots.

[0035] In TBoMS, the number of allocated symbols may be the same in each slot, as in Time Domain Resource Allocation (TDRA) of PUSCH Repetition type A, or the number of allocated symbols may be different in each slot, as in TDRA of PUSCH Repetition type B (described in detail below).

[0036] The TDRA may be interpreted as a resource allocation in the time domain of the PUSCH as specified in 3GPP TS38.214. The TDRA of the PUSCH may be interpreted as being specified by an information element (IE) of the radio resource control layer (RRC), specifically, PDSCH-Config or PDSCH-ConfigCommon.

[0037] TDRA may also be interpreted as a time domain resource allocation for PUSCH specified by Downlink Control Information (DCI).

[0038] The configurations of base station 100 and terminal 200 described below are examples of functions related to the present embodiment. Base station 100 and terminal 200 may have functions not shown. Furthermore, the functional divisions and / or names of functional units are not limited as long as the functions perform the operations related to the present embodiment.

[0039] <Base station configuration> 3 is a block diagram showing an example of the configuration of base station 100 according to this embodiment. Base station 100 includes, for example, a transmitting unit 101, a receiving unit 102, and a control unit 103. Base station 100 communicates with terminal 200 (see FIG. 4) by radio.

[0040] The transmitter 101 transmits a downlink (DL) signal to the terminal 200. For example, the transmitter 101 transmits the DL signal under the control of the controller 103.

[0041] The DL signal may include, for example, a downlink data signal and control information (e.g., Downlink Control Information (DCI)). The DL signal may also include information indicating scheduling related to signal transmission of terminal 200 (e.g., an UL grant). The DL signal may also include control information of higher layers (e.g., control information for Radio Resource Control). The DL signal may also include a reference signal.

[0042] Channels used for transmitting DL signals include, for example, data channels and control channels. For example, the data channels may include a PDSCH (Physical Downlink Shared Channel), and the control channels may include a PDCCH (Physical Downlink Control Channel). For example, base station 100 transmits control information to terminal 200 using the PDCCH and transmits downlink data signals using the PDSCH.

[0043] The reference signal included in the DL signal may include at least one of a demodulation reference signal (Demodulation Reference Signal (DMRS)), a Phase Tracking Reference Signal (PTRS), a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information. For example, reference signals such as DMRS and PTRS are used for demodulating downlink data signals and are transmitted using the PDSCH.

[0044] The receiver 102 receives an uplink (UL) signal transmitted from the terminal 200. For example, the receiver 102 receives the UL signal under the control of the controller 103.

[0045] The control unit 103 controls the communication operations of the base station 100, including the transmission processing of the transmission unit 101 and the reception processing of the reception unit .

[0046] For example, the control unit 103 acquires information such as data and control information from the upper layer and outputs it to the transmitting unit 101. The control unit 103 also outputs the data, control information, etc. received from the receiving unit 102 to the upper layer.

[0047] For example, when the control unit 103 determines that the terminal 200 applies TBoMS, it performs control to transmit control information regarding the application of TBoMS to the terminal 200.

[0048] For example, when terminal 200 transmits an uplink signal to which TBoMS is applied, control unit 103 controls reception of the uplink signal to which TBoMS is applied. For example, control unit 103 receives a PUSCH signal of a plurality of slots and configures a transport block.

[0049] Furthermore, for example, when the control unit 103 determines that the terminal 20 applies repeated transmission of TBoMS transmission, the control unit 103 controls the transmission of control information including the determination result to the terminal 20. In this case, when the terminal 20 transmits an uplink signal to which repeated transmission of TBoMS transmission is applied, the control unit 103 controls the reception of the uplink signal. For example, the control unit 103 receives PUSCH signals of multiple slots and configures a transport block. For example, the control unit 103 performs a restoration process of information (data) obtained by repeated transmission. For example, the restoration process may include a data concatenation process, etc.

[0050] <Device configuration> 4 is a block diagram showing an example of the configuration of terminal 200 according to this embodiment. Terminal 200 includes, for example, receiving section 201, transmitting section 202, and control section 203. Terminal 200 communicates with base station 100, for example, wirelessly.

[0051] The receiving unit 201 receives a DL signal transmitted from the base station 100. For example, the receiving unit 201 receives the DL signal under the control of the control unit 203.

[0052] The transmitter 202 transmits the UL signal to the base station 100. For example, the transmitter 202 transmits the UL signal under the control of the controller 203.

[0053] The UL signal may include, for example, an uplink data signal and control information, information related to the processing capabilities of terminal 200 (e.g., UE capability), and a reference signal.

[0054] Channels used for transmitting UL signals include, for example, data channels and control channels. For example, the data channels include a PUSCH (Physical Uplink Shared Channel), and the control channels include a PUCCH (Physical Uplink Control Channel). For example, terminal 200 receives control information from base station 100 using the PUCCH and transmits uplink data signals using the PUSCH.

[0055] The reference signals included in the UL signal may include at least one of DMRS, PTRS, CSI-RS, SRS, and PRS, for example. For example, reference signals such as DMRS and PTRS are used for demodulating uplink data signals and are transmitted using PUSCH.

[0056] The control unit 203 controls the communication operations of the terminal 200 , including the reception processing in the reception unit 201 and the transmission processing in the transmission unit 202 .

[0057] For example, the control unit 203 acquires information such as data and control information from a higher layer and outputs it to the transmitting unit 202. Also, the control unit 203 outputs, for example, data and control information received from the receiving unit 201 to the higher layer.

[0058] For example, when the terminal 200 applies TBoMS, the control unit 203 controls the transmission of the uplink signal to which TBoMS is applied. In this case, the control unit 203 may control the signal transmission to which TBoMS is applied based on the control information acquired from the base station 100. For example, the control unit 203 determines the transport block size (TBS) to be transmitted by TBoMS, and controls the transmission of the TB having the determined TBS using the PUSCHs of a plurality of slots.

[0059] Also, for example, when the control unit 203 applies the repeated transmission of TBoMS transmission in the terminal 20, the control unit 203 controls the transmission of the uplink signal to which the repeated transmission of TBoMS transmission is applied. For example, the control unit 203 determines the transport block size (TBS) to be transmitted by TBoMS, and controls the repeated transmission of the TB having the determined TBS using the PUSCHs of a plurality of slots.

[0060] Note that the channels used for the transmission of DL signals and the channels used for the transmission of UL signals are not limited to the above-described examples. For example, the channels used for the transmission of DL signals and the channels used for the transmission of UL signals may include a RACH (Random Access Channel) and a PBCH (Physical Broadcast Channel). The RACH may be used, for example, for the transmission of Downlink Control Information (DCI) including a Random Access Radio Network Temporary Identifier (RA-RNTI).

[0061] Hereinafter, first, the determination of the TBS corresponding to the TB spanning a plurality of slots will be described. Next, the repeated transmission of TBoMS transmission will be described.

[0062] <Regarding the determination of TBS> Hereinafter, the determination of the TBS corresponding to the TB spanning a plurality of slots will be described. For example, regarding the determination of the TBS, at least one of the following three TBS calculation methods may be applied.

[0063] <Method 1 for calculating TBS> When calculating the number of REs (N RE ), it is extended to the number of REs in multiple slots instead of one slot. For example, as in the following equation (1), N RE (N' RE ) may be calculated. [Number] In Equation (1), N RB SC indicates the number of subcarriers per resource block, N sh symb indicates the number of symbols per slot, N PRB DMRS indicates the number used for DMRS per slot, N PRB oh indicates the number of overheads. Here, each variable may be changed to the number of REs spanning multiple slots.

[0064] For example, in this case, N PRB oh in Equation (1) may be calculated by any of the following.

[0065] · (Opt 1): Set the same N<000A018> oh for all slots · (Opt 1-1): Allocate the xOverhead set by PDSCH-ServingCellConfig to each slot · (Opt 1-2): Set, for each slot, the value obtained by dividing the xOverhead set in PDSCH-ServingCellConfig by the number of slots to which TBoMS is applied as N PRB oh In this case, the quotient may be rounded to an integer by ceil or floor. · (Opt 1-3): Add a new parameter, and when using TBoMS, determine N PRB oh based on the parameter ​(Opt 1-4): Add new parameters and, when TBoMS is used, calculate N based on the parameters and xOverhead. PRB oh Decided to (Opt 2): N based on the number of slot symbols to which TBoMS is applied PRB oh Set (Opt 2-1): Multiply xOverhead by the number of slots to which resources are allocated (Type A repetition like TDRA) (Opt 2-2): Multiply the number of repeated transmissions (repetition count) by xOverhead (Type B repetition like TDRA) ·(Opt 2-2-1): Multiply the actual repetition number. In this case, the number of actual repetitions that are not divided may be multiplied. ·(Opt 2-2-2): Multiply the nominal repetition number. (Opt 2-3): Calculated according to TDRA SLIV, number of symbols to be allocated, total number of allocated symbols, and xOverhead For example, it may be calculated by (xOverhead) × (total number of symbols) / (SLIV of TDRA and number of symbols to be allocated).

[0066] In Opt 2-1, 2-2, and 2-3, different parameters set by PDSCH-ServingCellConfig may be used instead of xOverhead. For example, N is set based on the added parameters, xOverhead, and the number of slots and symbols. PRB oh In this case, different parameters may be set when TBoMS is applied and when it is not applied.

[0067] Also, N in Eq. (1) sh symb Calculation of (N PRB DMRSFor , any of the following may apply.

[0068] ·(Alt 1): Change to the number of symbols (RE) of all resources to which the resource is allocated In this case, the number of symbols (RE) may be calculated considering the TDD pattern, SFI, and CI. ·(Alt 2): Multiply the number of slots to which the resource is allocated (Type A repetition like TDRA) ·(Alt 3): Multiply the number of repetitions (Type B repetition like TDRA) ·(Opt 1): Multiply the actual repetition number. In this case, the number of actual repetitions that are not divided may be multiplied. ·(Opt 2): Multiply the nominal repetition number.

[0069] <TBS calculation method 2> Calculate N based on the SLIV of TDRA RE and calculate N according to TDRA info For calculation method 2, any of the following methods may apply.

[0070] ·(Alt 1): In the case of Type A repetition like TDRA, calculate N for 1 slot RE and multiply by the number of repetitions during the N calculation info In this case, the number of slots may be calculated considering the dropped slots (multiply the number of available slots). If there are a TDD pattern, SFI (Slot Format Indication) / CI (Cancel Indication), etc., the TBS to be transmitted or received may be changed from the notified value.

[0071] ·(Alt 2): In the case of Type B repetition like TDRA, N for one repetition RECalculate and set the number of repetitions to N info Multiply during the calculation. Here, the following two Options may be applied.

[0072] ·(Opt 1): Multiply by the actual repetition number. In this case, the number of non-segmented actual repetitions may be multiplied.

[0073] ·(Opt 2): Multiply by the nominal repetition number.

[0074] Note that the actual repetition is the repetition finally transmitted, and the nominal repetition may be interpreted as the repetition notified / assigned by the base station to the terminal. For example, due to factors such as the following, the actual repetition and the nominal repetition may change.

[0075] (i) If the nominal repetition is not arranged in the UL symbol, the nominal repetition may be excluded.

[0076] (ii) If the nominal repetition is arranged at the slot boundary, the nominal repetition may be divided at the slot boundary and changed to two actual repetitions.

[0077] <TBS Calculation Method 3> Add a predetermined parameter. For example, the parameter may be notified using DCI and / or upper layer signaling.

[0078] For example, as shown in the following formula (2), a predetermined parameter (K) may be added when calculating the value of N info For example, K is N infoThe scaling factor may be a value that multiplies the value by K, but is not necessarily limited to such a purpose. The scaling factor may also be referred to as a scaling value.

number

[0079] In equation (2), N RE indicates the number of REs, R indicates a coding rate, Qm indicates a modulation level, and v indicates the number of MIMO layers. For example, the right side of equation (2) indicates that the size of a TB transmitted in a PUSCH of one slot is multiplied by a scaling factor K. In other words, in equation (2), the TBS for TBoMS transmission is calculated by multiplying the size of a TB transmitted in a PUSCH of one slot by the scaling factor K.

[0080] For example, in the example of formula (2), N info In calculating , a scaling factor may be added, but the present disclosure is not limited thereto. For example, the scaling factor may be applied to the number of REs allocated in one slot. For example, the number of REs allocated in one slot may be multiplied by the scaling factor K. Furthermore, the scaling factor may be applied to a quantized intermediate variable. For example, when the quantized intermediate variable N info’ may be multiplied by a scaling factor K times.

[0081] The scaling factor K may be an integer greater than 1. A method for determining the scaling factor will be described below. Note that determining the scaling factor may be considered as an example of determining the TBS.

[0082] The scaling factor may be determined based on at least one of the following determination methods, for example.

[0083] In determination method 1, the scaling factor is determined based on at least one of the number of slots designated for allocation to TBoMS and the number of slots that can be allocated by TBoMS.

[0084] In determination method 2, the scaling factor is determined based on RRC and / or MAC CE.

[0085] In determination method 3, the scaling factor is determined based on the DCI.

[0086] In determination method 4, the scaling factor is determined based on the notified information and the number of allocated slots.

[0087] In decision method 5, the method to be applied from among the above decision methods 1 to 4 is set by control information (for example, RRC).

[0088] In decision method 6, information on the terminal's capabilities (for example, UE capability) regarding whether or not any of the above decision methods 1 to 5 can be applied is notified.

[0089] Next, each of the above-mentioned determination methods 1 to 6 will be specifically explained.

[0090] (Determination method 1: Determined from the number of TBoMS slots) For example, the terminal determines the scaling factor based on at least one of the number of slots designated for allocation of TBoMS and the number of slots that can be allocated by TBoMS. For example, the scaling factor is determined based on the following method examples 1-1 to 1-4.

[0091] (Method Example 1-1) The terminal determines the number of slots designated for allocation of TBoMS, which is indicated in each row index of the TDRA list set by RRC, as a scaling factor. Note that the "number of slots designated for allocation of TBoMS" may correspond to the "number of (candidate) slots to be allocated to TBoMS." The "number of slots designated for allocation of TBoMS" may correspond to the number of slots set (designated) by control information (e.g., RRC and / or DCI).

[0092] In Example 1-1, the number of repetitions indicated in the TDRA list may be determined to be the number specified in the slots allocated to TBoMS. In other words, the number of repetitions indicated in the TDRA list may be used (or reused) as the number specified in the slots allocated to TBoMS. In this case, the terminal may determine whether to apply TBoMS or repetitions to perform signal transmission based on information related to communication control. For example, the information related to communication control may be set by at least one of RRC, MAC CE, DCI, and UE capability. In this case, when TBoMS is applied, the terminal may perform scaling using a scaling factor in response to the determined TBS. In this case, the terminal does not need to perform scaling using a scaling factor when TBoMS is not applied (for example, when repetition is applied).

[0093] (Method example 1-2) The scaling factor is determined to be the number of slots to which TBoMS can be allocated, determined based on the RRC configuration and / or information of the DCI allocating TBoMS. Note that the "number of slots to which TBoMS can be allocated" may be determined based on the number of slots designated for allocation of TBoMS (the number of slots set by control information) and the number of slots that cannot be allocated to TBoMS due to overlap with other resources, etc. For example, the "number of slots to which TBoMS can be allocated" is a number equal to or less than the number of slots designated for allocation of TBoMS (the number of slots set by control information). The "number of slots to which TBoMS can be allocated" may be a number obtained by subtracting the number of slots that cannot be allocated to TBoMS due to overlap with other resources, etc., from the number of slots designated for allocation of TBoMS. For example, if the number of slots designated for allocation of TBoMS by DCI is set to 4 and one slot of the set four slots is designated for DL, the number of slots to which TBoMS can be allocated is 3.

[0094] For example, the scaling factor may be determined to be the number of slots in which the SRS triggered by the same DCI as the DCI that allocates the downlink symbol and / or PUSCH in a TDD pattern such as TDD-UL-DL-Configurationcommon or TDD-UL-DL-ConfigurationDedicated does not overlap with the PUSCH resource.

[0095] (Method Examples 1-3) The scaling factor is determined as the number of slots available for TBoMS allocation, determined based on a signal received before the DCI to allocate the TBoMS. For example, the signals received before the DCI may take into consideration RRC, UL CI (Cancel Indication), and dynamic SFI (Slot Format Indication) in DCI format 2-0.

[0096] (Method Examples 1-4) The scaling factor is determined as the number of slots available for TBoMS allocation, determined based on signals received before the first slot for transmitting TBoMS. For example, the signals received before the first slot for transmitting TBoMS may take into consideration RRC, UL CI, and dynamic SFI in DCI format 2-0.

[0097] Using FIG. 5 as an example, method example 1-3 and method example 1-4 will be described.

[0098] Fig. 5 is a diagram showing an example of determination method 1. In the example of Fig. 5, slots #1 to #6 are shown, with DCI transmitted in slot #1 and TBoMS transmission executed in each of slots #3 to #6. The DCI in slot #1 includes information for allocating TBoMS. In other words, the DCI in slot #1 allocates TBoMS. Furthermore, in the example of Fig. 5, the first slot for transmitting TBoMS is slot #3.

[0099] In the example methods 1-3, the DCI to which TBoMS is assigned is the DCI of slot #1, and therefore the number of slots to which TBoMS can be assigned is determined based on a signal received before the DCI of slot #1. The determined number of assignable slots is then determined to be the scaling factor.

[0100] In the example methods 1-4, the slot in which TBoMS is first transmitted is slot #3, so the number of slots in which TBoMS can be allocated is determined based on signals received before slot #3. The determined number of allocatable slots is then determined to be the scaling factor.

[0101] In the above-described method examples 1-1 to 1-4, the number of slots designated for allocation of TBoMS or the number of slots available for allocation of TBoMS is defined as the scaling factor, but the present disclosure is not limited to this. The scaling factor may be determined to be a value obtained by a predetermined process based on the number of slots designated for allocation of TBoMS or the number of slots available for allocation of TBoMS. For example, the scaling factor may be a value obtained by dividing X from the number of slots designated for allocation of TBoMS or the number of slots available for allocation of TBoMS. In this case, X may be set according to a predetermined rule or by RRC.

[0102] Furthermore, in the above-described method examples 1-2 to 1-4, scheduling signals for other carriers may be taken into consideration, for example, scheduling signals related to CA (Carrier Aggregation).

[0103] (Determination method 2: Determined based on RRC and / or MAC CE) For example, the terminal determines the scaling factor based on RRC configuration and / or a Media Access Control (MAC) Control element (CE).

[0104] (Method Example 2-1: Decision based on RRC settings) For example, a parameter for setting a scaling factor may be added to the RRC PUSCH-Config IE. The terminal may determine the scaling factor based on the parameter added to the RRC PUSCH-Config IE. In this case, the scaling factor determined based on the RRC configuration may be set according to the number of slots specified for TBoMS allocation and / or the number of slots available for TBoMS allocation. For example, a different scaling factor may be set when the number of slots specified for TBoMS allocation is "1" and when the number of slots specified for TBoMS allocation is "2". For example, a parameter added to the RRC PUSCH-Config IE may be set according to the number of slots specified for TBoMS allocation. For example, the number of slots specified for TBoMS allocation may be associated with the scaling factor or a parameter for setting the scaling factor.

[0105] (Method Example 2-2: Decision based on MAC CE) For example, it may be determined that a parameter specified in the MAC CE is the scaling factor used to determine the TBS, or in other words, the scaling factor specified in the MAC CE may be applied.

[0106] Furthermore, the scaling factor specified by the MAC CE may be set according to the number of slots allocated to the TBoMS. For example, the scaling factor set according to the number of slots allocated to the TBoMS may be specified by the MAC CE. For example, the number of slots allocated to the TBoMS may be associated with the scaling factor or a parameter for setting the scaling factor.

[0107] A scaling factor set by the RRC may be activated or deactivated by the MAC CE. In other words, whether to use a scaling factor set by the RRC may be set by the MAC CE. Alternatively, scaling factor candidates may be set by the RRC, and a scaling factor to be applied from among the candidates may be set by the MAC CE. In this case, the scaling factor set by the RRC and activated or deactivated by the MAC CE may be set according to the number specified for the TBoMS allocation slots.

[0108] (Method 3: DCI based) For example, the terminal determines the scaling factor based on the DCI. For example, the scaling factor may be indicated by a field (for example, a bit field) that stores information included in the DCI.

[0109] (Method example 3-1: Determined based on the FDRA bit field) For example, the scaling factor may be signaled by an FDRA (Frequency Domain Resource Allocation) bit field. One or more bits of the FDRA field may be used to signal the scaling factor. In this case, the number of RBs when transmitting TBoMS may be limited. By limiting the RBs, bits used to signal the scaling factor may be secured. Furthermore, in frequency allocation, only Uplink resource allocation type 1 or / and 2 may be applicable.

[0110] (Method example 3-2: Determined based on the TDRA bit field) For example, a scaling factor may be notified by the TDRA bit field. A scaling factor corresponding to each row index of the TDRA list may be set according to a predetermined rule and / or RRC configuration. Then, the scaling factor set for the row index specified by the TDRA field may be used. For example, a scaling factor may be set in the PUSCH-Allocation of the PUSCH-TimeDomainResourceAllocation IE. A scaling factor may be set in the TDRA bit field separately from the number specified for the TBoMS allocation slots.

[0111] (Method example 3-3: Determined based on the MCS bit field) For example, a scaling factor may be signaled based on an MCS (Modulation and Coding Scheme) bit field. For example, one or more bits of the MCS bit field may indicate the MCS, and the remaining one or more bits may indicate a scaling factor. For example, one or more upper bits of the MCS bit field may indicate the MCS, and the remaining one or more lower bits may indicate a scaling factor. For example, one or more lower bits of the MCS bit field may indicate the MCS, and the remaining one or more upper bits may indicate a scaling factor. For example, the upper (or lower) three bits of the MCS bit field may be used to signal the MCS, and the lower (or upper) two bits may be used to signal the scaling factor.

[0112] When a scaling factor is notified based on the MCS bit field, selectable MCSs for TBoMS transmission may be limited. By limiting the selectable MCSs, bits used for notifying the scaling factor may be secured.

[0113] For example, in a default MCS table showing the relationship between multiple MCSs and the indexes associated with each MCS, an MCS index with a low index (e.g., low spectral efficiency) may be selectable. In this case, an MCS index with a high index (e.g., high spectral efficiency) may be restricted. For example, if 3 bits are used to signal an MCS, eight MCS indexes with low indexes may be selectable.

[0114] Note that the present invention is not limited to the example where an MCS index with a low index (e.g., low spectral efficiency) is selectable. For example, an MCS index with a high index (e.g., high spectral efficiency) may be selectable, and an MCS index with a low index (e.g., low spectral efficiency) may be restricted. Alternatively, the present invention is not limited to the example where an MCS index with a low index or an MCS index with a high index is selectable in the MCS table. For example, an MCS index with an intermediate index may be selectable, and MCSs with low and high indexes may be restricted. Alternatively, in the MCS table, selectable MCS indexes and restricting MCS indexes may be arranged randomly, or selectable MCS indexes or restricting MCS indexes may be arranged at equal intervals (e.g., alternating). The selectable MCS indexes and restricting MCS indexes may be fixed, or may be changed statically or dynamically.

[0115] The above-mentioned default MCS table may be regarded as an MCS table used when no scaling factor is not notified, or as an MCS table used when TBoMS transmission is not performed, for example.

[0116] Note that the present invention is not limited to the example in which selectable MCS indexes and restrictive MCS indexes are set in the default MCS table. For example, an MCS table for TBoMS transmission may be set, and the MCS table for TBoMS transmission may be referenced during TBoMS transmission. In other words, the MCS table for TBoMS transmission may be distinguished from the MCS table for when TBoMS transmission is not performed (or when a scaling factor is not notified).

[0117] Although the above example shows a case where a scaling factor is notified by the FDRA bit field, TDRA bit field, or MCS bit field of the DCI, the scaling factor may be notified by a bit field different from these bit fields in the DCI. Also, although the above example shows a case where a scaling factor is notified by one bid field, the scaling factor may be notified by multiple bit fields. For example, the scaling factor may be notified by a combination of each bit of multiple bit fields.

[0118] (Method Example 3-4: Variation) Although the above description shows an example in which the scaling factor is notified by the FDRA bit field, the TDRA bit field, or the MCS bit field defined in the DCI, a bit field for notifying the scaling factor may be defined in the DCI. Alternatively, the scaling factor may be notified by a bit field for notifying the scaling factor (a bit field dedicated to the scaling factor).

[0119] The number of bits and the number of bit fields used to notify the scaling factor described above are merely examples, and the present disclosure is not limited thereto. For example, the number of bits and the number of bit fields may be fixed, or may be dynamically or statically configured. For example, this configuration may be performed by control information of a higher layer.

[0120] (Determination method 4: Determined based on notified information and number of allocated slots) For example, the terminal determines the scaling factor based on the notified information and / or the number of allocated slots.

[0121] For example, when determining the scaling factor, the terminal may determine the scaling factor by combining the number of slots allocated to the PUSCH with information set by the RRC and / or information notified by the DCI.

[0122] For example, the number of slots to be allocated to the PUSCH is not particularly limited. The number of slots to be allocated to the PUSCH may correspond to the "number of slots to which TBoMS can be allocated" or the "number designated as slots to be allocated to TBoMS" shown by the above-mentioned determination method 1. For example, the number of slots to be allocated to the PUSCH corresponds to the number of slots determined by at least one of method examples 1-1 to 1-4 of the above-mentioned determination method 1.

[0123] Furthermore, the information set by the RRC is not particularly limited, and may correspond to the information shown in the above-mentioned determination method 2.

[0124] Furthermore, the information notified by the DCI is not particularly limited, and may correspond to the information shown in the above-mentioned determination method 3.

[0125] For example, the scaling factor may be determined by adding (or subtracting) the notified information (e.g., value) to the number of slots allocated to the PUSCH. Alternatively, the scaling factor may be determined by dividing (or multiplying) the number of slots allocated to the PUSCH by the notified information (e.g., value).

[0126] For example, a case will be described where information about a scaling factor (for example, a scaling factor index) is notified by DCI. The following table shows an example of the relationship between the information about the scaling factor and the reference value of the scaling factor. [Table 1]

[0127] For example, when information regarding a scaling factor (e.g., a scaling factor index) is notified by DCI, the terminal may refer to Table 1 to determine a scaling reference value, and may determine the scaling factor by adding the number of slots to be allocated to the PUSCH and the scaling reference value.

[0128] For example, if TBoMS is allocated across four slots, the number of slots allocated to PUSCH is 4. If the scaling factor index is 1, referring to Table 1, the scaling reference value is "0" and the scaling factor K is K=4+0. Similarly, if the scaling factor index is 2, referring to Table 1, the scaling reference value is "-1" and the scaling factor K is K=4+(-1)=3.

[0129] (Decision Method 5: RRC Settings for Scaling Factor) For example, the terminal is configured by a predetermined rule and / or RRC to determine which method to apply to determining the scaling factor from among the above-mentioned determination methods 1 to 4. In determination method 5, the terminal determines which method to apply from determination methods 1 to 4, and determines the scaling factor using the determined method.

[0130] (Method example 5-1: Determined according to UE capability) For example, the method to be applied to determine the scaling factor may be determined based on UE capability. For example, the terminal reports information indicating the determination methods supported by the terminal (e.g., determination methods usable by the terminal) by means of UE capability. When the terminal supports determination method 3, it reports information indicating that it supports determination method 3 by means of UE capability. Then, the terminal determines the scaling factor upon receiving notification of the scaling factor based on determination method 3. In this case, a terminal that does not support determination method 3 may determine the scaling factor based on determination method 1 or 2. Note that a terminal that supports a determination method other than determination method 3 may report information indicating the supported determination methods (e.g., determination methods 1 and / or 2) by means of UE capability.

[0131] (Method example 5-2: Determined according to RRC settings) For example, the method to be applied to determine the scaling factor may be determined based on an RRC configuration. For example, information (e.g., parameters) related to the scaling factor may be configured in the PUSCH-Config IE. The information (e.g., parameters) related to the scaling factor may indicate at least one of determination methods 1 to 3. For example, the terminal may identify the determination method to be used based on the information related to the scaling factor, and determine the scaling factor based on the identified determination method.

[0132] (Method Example 5-3: Combination) For example, the above-described method examples 5-1 and 5-2 may be combined. For example, a terminal reports information indicating one or more determination methods supported by the terminal via UE capability. The base station receiving the report identifies a determination method to be used from the one or more determination methods indicated in the UE capability, and performs RRC configuration based on the identified determination method (e.g., notification of information on a scaling factor). The terminal may identify a determination method to be used from the one or more determination methods supported by the terminal based on the RRC configuration, and determine a scaling factor based on the identified determination method.

[0133] (Decision Method 6: UE capability notification) The terminal may report information related to determining the TBS of the TBoMS by the UE capability. For example, the information reported by the UE capability may be information indicating the terminal's capability related to determining the TBS of the TBoMS.

[0134] For example, the terminal may report information related to the above-mentioned determination methods 1 to 5 by using UE capability.

[0135] For example, the UE capability may report information indicating whether or not at least one of the above-described determination methods 1 to 5 is applicable to the terminal. Also, the UE capability may report information indicating whether or not at least one of the examples of each method shown in the above-described determination methods 1 to 5 is applicable. For example, whether or not each example of determination method 1 to 5 is applicable may be reported, or whether or not multiple methods (or example methods) are applicable may be reported together.

[0136] The terminal may also report the maximum value of the scaling factor by the UE capability. For example, the maximum value of the scaling factor may be the maximum value of the scaling factor supported by the terminal or the maximum value of the scaling factor usable by the terminal.

[0137] Furthermore, the terminal may report information regarding frequencies supported by the terminal by using UE capability. The reporting method is not particularly limited. For example, the terminal may report whether or not it can support each frequency all at once. In other words, the terminal may report whether or not it can support each frequency as a terminal. Alternatively, the terminal may report whether or not it can support each frequency individually. For example, the terminal may report whether or not it can support FR1 and FR2 individually. For example, the terminal may report information indicating that it can support FR1 and that it cannot support FR2 by using UE capability. Furthermore, the terminal may report whether or not it can support each SCS.

[0138] The terminal may report whether it is compatible with frequencies other than FR1 and FR2. Also, at least one of FR1 and FR2 may be subdivided, and the terminal may report whether it is compatible with each of the subdivided frequencies. For example, if FR2 is subdivided into sub-labeled frequencies such as FR2-1 and FR2-2, the terminal may report whether it is compatible with each of the subdivided frequencies FR2-1 and FR2-2.

[0139] Furthermore, the terminal may report information about the duplexing schemes (for example, TDD and / or FDD) supported by the terminal using UE capability. For example, the terminal may report whether or not it supports each of the duplexing schemes collectively.

[0140] As described above, in this embodiment, the scaling factor used to determine the TBS in TBoMS can be set to an appropriate value, so that the TB in TBoMS can be set to an appropriate size. Furthermore, because the TB in TBoMS can be set to an appropriate size, resource utilization efficiency can be improved.

[0141] Next, repeated transmission of TBoMS will be described. Note that the TBS of the TB transmitted in repeated transmission of TBoMS described below is not limited to the example determined by the method described above. For example, the TBS of the TB transmitted in repeated transmission of TBoMS may be determined by a method different from the method described above.

[0142] (Transmission method 1) For example, the terminal may repeatedly transmit TBoMS. The repeated transmission of TBoMS may be referred to as "TBoMS with repetitions," for example.

[0143] FIG. 6 is a diagram showing an example of repeated transmission of TBoMS. FIG. 6 shows an example of repeated transmission of TBoMS twice in six slots, slot #1 to slot #6. For example, one TBoMS transmission (single TBoMS) is carried out in slot #1 to slot #3 in FIG. 6. Also, one TBoMS transmission is carried out in slot #4 to slot #6. Note that in FIG. 6, a block of TBoMS in one slot is indicated as a TBoMS unit. TBoMS unit #1 and TBoMS unit #2 indicate different TBoMS transmissions. Note that the respective TBoMS unit #1 in slot #1 to slot #3 may correspond to mutually different information (for example, a sequence). Also, the respective TBoMS unit #2 in slot #4 to slot #6 may correspond to mutually different information (for example, a sequence).

[0144] The terminal may perform repeated transmission of TBoMS using multiple slots. For example, the terminal may determine whether or not to perform repeated transmission of TBoMS according to the following conditions.

[0145] (Condition 1) The terminal supports repeated transmission of TBoMS.

[0146] (Condition 2) Repeated transmission of TBoMS is enabled by RRC configuration. Note that this RRC configuration may be configured by a parameter of PUSCH-Config IE, for example. For example, application of TBoMS, application of repeated transmission, and application of repeated transmission of TBoMS may each be configured (specified) by RRC configuration.

[0147] (Condition 3) A row index is specified in which both the number of repetitions of the TDRA list and the number specified for the allocated slots of TBoMS are set. The row index of the TDRA list is specified by, for example, DCI.

[0148] (Condition 4) The repetition number is set by RRC, and a row index in which the number specified in the TBoMS allocation slot of the TDRA list is set is specified. The row index of the TDRA list is specified by, for example, DCI. Note that the repetition number of the TDRA list does not need to be set in the row index specified here.

[0149] (Condition 5) Both the number of repetitions and the number of allocated slots for TBoMS are set by the RRC.

[0150] The terminal may decide to perform repeated transmission of TBoMS when one of the above-mentioned conditions 1 to 5 is satisfied. Alternatively, the terminal may decide to perform repeated transmission of TBoMS when two or more of conditions 1 to 5 are satisfied.

[0151] (Transmission method 2: TBoMS repeat transmission bit selection method 1) The terminal may perform continuous bit selection in the bit selection for repeated transmission of TBoMS. For example, the starting point of the bit selection may be determined so that bits of an LDPC-coded bit sequence are continuously selected.

[0152] (Selection method 1) For example, the start position of bit selection in a certain slot #n may be the position of the bit next to the last bit of the bit selection in a slot prior to slot #n in which the PUSCH is transmitted.

[0153] Figures 7A and 7B are diagrams showing an example of bit selection in selection method 1 of transmission method 2. Similar to Figure 6, Figures 7A and 7B show an example of two repeated transmissions of TBoMS performed in slots #1 to #6. Figures 7A and 7B also show the relationship between the bits transmitted in each slot and the bit positions in the circular buffer. Note that a bit sequence corresponding to one TB may be stored in the circular buffer.

[0154] Note that the example of Figure 7A shows bit selection when rate matching is performed on a slot-by-slot basis, and the example of Figure 7B shows an example of bit selection when rate matching is performed on a TBoMS basis (e.g., multiple slots corresponding to one TBoMS basis).

[0155] For example, in Figures 7A and 7B, the starting position of the bit selection for slot #4 is the position of the bit next to the last bit of the bit selection for slot #3, which is before slot #4 and in which PUSCH is transmitted (TBoMS transmission is performed).

[0156] (Selection method 2) For example, the start positions may be determined so that the start positions of bit selection in each repeated transmission (each repetition) are at equal intervals.

[0157] For example, the start position of the first repetition is determined according to the RV (redundancy version). The start positions of repetitions other than the first repetition may be determined based on a sequence length extracted in bit selection of a specific repetition (hereinafter referred to as a "specific sequence length"). For example, the start position of bit selection of a bit sequence transmitted in the kth repetition (k is an integer between 2 and n, and n is the number of repetitions and an integer greater than or equal to 2) may be shifted by the specific sequence length from the start position of bit selection of a bit sequence transmitted in the k-1th repetition. In this case, the start positions of bit selection are determined at intervals corresponding to the specific sequence length. In this case, the specific repetition may be the first repetition or a repetition that transmits a transmission bit sequence with the shortest sequence length. Alternatively, the specific repetition in this case may be a repetition that transmits a transmission bit sequence with the longest sequence length. The specific sequence length may also be determined based on sequence lengths extracted in each of the bit selections of multiple repetitions. For example, it may be the average, maximum, or minimum of the sequence lengths extracted in each of the multiple repetition bit selections.

[0158] (Transmission method 3: TBoMS repeat transmission bit selection method 2) For repeated transmission of TBoMS, the terminal may apply the RV id in each TBoMS transmission occasion based on a predetermined rule and / or parameters set by the RRC.

[0159] For example, the terminal may apply the RV id in one TBoMS transmission opportunity.

[0160] Fig. 8 is a diagram showing an example of the relationship between RV id and TBoMS transmission opportunities. Fig. 8 shows examples of the relationship between each of option 1 (Opt 1) to option 4 (Opt 4). Note that examples of the relationship between RV id and TBoMS transmission opportunities are not limited to these. For example, when Opt 1 in Fig. 8 is applied, the RV ids of TBoMS are 0, 2, 3, 1, 0, 2, ... in that order. Fig. 9 shows an example when the RV ids of TBoMS are 0 and 2.

[0161] Figures 9A and 9B are diagrams showing an example of bit selection in transmission method 3. Similar to Figures 7A and 7B, Figures 9A and 9B show an example of two repeated transmissions of TBoMS performed in slots #1 to #6. Figures 9A and 9B also show the relationship between the bits transmitted in each slot and the bit positions in the circular buffer. Note that a bit sequence corresponding to one TB may be stored in the circular buffer.

[0162] Note that the example in Figure 9A shows bit selection when rate matching is performed on a slot-by-slot basis, and the example in Figure 9B shows an example of bit selection when rate matching is performed on a TBoMS basis (e.g., multiple slots corresponding to one TBoMS basis).

[0163] 9A and 9B, for example, RV id=0 corresponding to the first TBoMS transmission opportunity (n=0 in FIG. 8) is applied to slots #1 to #3 corresponding to the first repeated TBoMS transmission. RV id=2 corresponding to the second TBoMS transmission opportunity (n=1 in FIG. 8) is applied to slots #4 to #6 corresponding to the second repeated TBoMS transmission.

[0164] (Transmission Method 4: RRC Settings for Rate Matching in Repeated Transmission of TBoMS) In repeated transmission of TBoMS, the terminal may determine how to determine the id of the RV in each transmission occasion of TBoMS based on a predetermined rule and / or a parameter set by the RRC.

[0165] For example, the terminal determines whether to apply transmission method 2 or transmission method 3 for repeated transmission of TBoMS.

[0166] (Example 4-1 of how to determine the transmission method: Determined according to UE capability) For example, the method for determining the RV id may be determined based on the UE capability. For example, when the terminal supports bit selection (e.g., continuous bit selection over repetition) indicated in transmission method 2, the terminal may report information indicating that it supports the bit selection indicated in transmission method 2 by means of the UE capability. Then, the terminal may determine the RV id based on the bit selection indicated in transmission method 2. Note that when the terminal does not support the bit selection indicated in transmission method 2, it may apply the bit selection indicated in transmission method 3.

[0167] (Example 4-2 of how to determine the transmission method: Determined according to RRC settings) For example, the method for determining the RV id may be determined based on the configuration of RRC. For example, information (for example, parameters) regarding the method for determining the RV id may be configured in the PUSCH-Config IE. The information (for example, parameters) regarding the method for determining the RV id may indicate at least one of the bit selection indicated in transmission method 2 and the method indicated in transmission method 3 described above. For example, the terminal may identify the method to be used based on the information regarding the method for determining the RV id, and determine the RV id based on the identified method. For example, if the RV id used by the method indicated in transmission method 3 is configured by RRC, the method indicated in transmission method 3 may be applied, and if the RV id is not configured by RRC, the bit selection indicated in transmission method 2 may be applied.

[0168] (Example 4-3: Combination of methods for determining the transmission method) For example, the above-described Example 4-1 and Example 4-2 may be combined. For example, a terminal reports one or more determination methods supported by the terminal by means of UE capability. The base station receiving the report identifies a determination method to be used from one or more determination methods indicated in the UE capability, and performs RRC configuration based on the identified determination method (e.g., notifying information on a method for determining an RV id). The terminal may identify a determination method to be used from one or more determination methods supported by the terminal based on the RRC configuration, and determine an RV id based on the identified determination method.

[0169] (Transmission method 5: UE capability notification) The terminal may report information regarding repeated transmission of TBoMS by UE capability. For example, the information reported by the UE capability may be information indicating the terminal's capability regarding repeated transmission of TBoMS.

[0170] For example, the terminal may report, by UE capability, information related to the above-mentioned transmission methods 1 to 5 of the repeated transmission of TBoMS. For example, the following information may be reported by UE capability.

[0171] For example, the UE capability may report information indicating whether or not at least one of the above-mentioned transmission methods 1 to 4 for repeated transmission of TBoMS is applicable to the terminal. Also, the UE capability may report information indicating whether or not at least one of the examples of each method shown in the above-mentioned transmission methods 1 to 4 for repeated transmission of TBoMS is applicable. For example, the applicability of each example of transmission methods 1 to 4 for repeated transmission of TBoMS may be reported, or the applicability of multiple methods (or example methods) may be reported together.

[0172] Furthermore, the terminal may report the maximum number of slots to allocate TBoMS by the UE capability. For example, the maximum number of slots to allocate TBoMS may be the maximum number of slots to allocate TBoMS that the terminal supports, or the maximum number of slots to allocate TBoMS that the terminal can use.

[0173] Furthermore, when performing repeated transmission of TBoMS, the terminal may report the maximum total number of slots that can be allocated in repeated transmission of TBoMS by UE capability. For example, the maximum total number of slots that can be allocated in repeated transmission of TBoMS may be the maximum total number of slots that can be allocated in repeated transmission of TBoMS that the terminal supports, or may be the maximum total number of slots that can be allocated in repeated transmission of TBoMS that the terminal can use.

[0174] Furthermore, when performing repeated transmission of TBoMS, the terminal may report the maximum number of repeated transmissions by using the UE capability. For example, the maximum number of repeated transmissions may be the maximum number of repeated transmissions supported by the terminal, or the maximum number of repeated transmissions that the terminal can use.

[0175] Furthermore, the terminal may report information regarding frequencies supported by the terminal by using UE capability. The reporting method is not particularly limited. For example, the terminal may report whether or not it can support each frequency all at once. In other words, the terminal may report whether or not it can support each frequency as a terminal. Alternatively, the terminal may report whether or not it can support each frequency individually. For example, the terminal may report whether or not it can support FR1 and FR2 individually. For example, the terminal may report information indicating that it can support FR1 and that it cannot support FR2 by using UE capability. Furthermore, the terminal may report whether or not it can support each SCS.

[0176] The terminal may report whether it is compatible with frequencies other than FR1 and FR2. Also, at least one of FR1 and FR2 may be subdivided, and the terminal may report whether it is compatible with each of the subdivided frequencies. For example, if FR2 is subdivided into sub-labeled frequencies such as FR2-1 and FR2-2, the terminal may report whether it is compatible with each of the subdivided frequencies FR2-1 and FR2-2.

[0177] Furthermore, the terminal may report information about the duplexing schemes (for example, TDD and / or FDD) supported by the terminal using UE capability. For example, the terminal may report whether or not it supports each of the duplexing schemes collectively.

[0178] As described above, in this embodiment, repeated transmission of TBoMS can be performed, thereby improving data transmission efficiency. Furthermore, repeated transmission of TBoMS can be performed, thereby enabling coverage to be expanded efficiently.

[0179] For example, when an environment in which a gain can be obtained by TBoMS differs from an environment in which a gain can be obtained by repeated transmission, the number designated for the slots allocated to TBoMS and the number of repetitions of repeated transmission (repetition number) may be controlled in order to efficiently obtain each gain. For example, in an environment in which the gain obtained by TBoMS is relatively large (for example, when the desired data rate is relatively low), the number of repetitions may be decreased and the number designated for the slots allocated to TBoMS may be increased. Also, in an environment in which the gain obtained by repeated transmission is relatively large (for example, when the desired data rate is relatively high), the number of repetitions may be increased and the number designated for the slots allocated to TBoMS may be decreased. By such control, the gains of TBoMS and repeated transmission can be efficiently obtained. Note that the adjustment of the number designated for the slots allocated to TBoMS and the number of repetitions may be performed by the base station.

[0180] Note that, although the above-described embodiment has shown an example in which TBoMS is applied to PUSCH transmission, the present disclosure is not limited to this. TBoMS may be applied to transmission of a channel different from PUSCH. Alternatively, TBoMS may be applied to a combination of multiple channels. Similarly, with regard to repeated transmission of TBoMS, repeated transmission of TBoMS may be applied to transmission of a channel different from PUSCH, or repeated transmission of TBoMS may be applied to transmission of a channel different from PUSCH for a combination of multiple channels.

[0181] Furthermore, in the above-described embodiment, an example has been shown in which TBoMS is applied to uplink signals, but TBoMS may also be applied to downlink signals, or repeated transmission of TBoMS may also be applied.

[0182] In the above-described embodiment, a "slot" indicates an example of a time unit of radio resources, but the present disclosure is not limited to this. A "slot" may be interpreted as a "minislot," a "frame," a "subframe," an "interval," or a "TTI."

[0183] Furthermore, in the above-described embodiments, a "transport block (TB)" indicates an example of a unit of a block of information, but the present disclosure is not limited to this. The term "transport block" may be interpreted as other terms such as an "information block," "packet," "codeword," "code block," "sequence," "encoded sequence," or "subsequence."

[0184] (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.

[0185] 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, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocation, mapping, and assignment. For example, a functional block (component) that performs transmission is called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on how these functions are implemented.

[0186] For example, a base station, a 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. 10 is a diagram illustrating an example of the hardware configuration of a base station and a terminal according to an embodiment of the present disclosure. The above-described base station 100 and terminal 200 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.

[0187] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of base station 100 and terminal 200 may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0188] Each function in the base station 100 and the terminal 200 is realized by loading predetermined software (programs) onto hardware such as the processor 1001 and the memory 1002, causing the processor 1001 to perform calculations, control communication by the communication device 1004, and control at least one of reading and writing data in the memory 1002 and the storage 1003.

[0189] The processor 1001 controls the entire computer by running, for example, an operating system. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, the above-mentioned control unit 103 and control unit 203 may be realized by the processor 1001.

[0190] Furthermore, the processor 1001 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 program used is a program that causes a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 103 of the base station 100 or the control unit 203 of the terminal 200 may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be made for other functional blocks. While the above-described various processes have been described as being executed by one processor 1001, they may also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may be transmitted from a network via a telecommunications line.

[0191] The memory 1002 is a computer-readable recording medium and may be configured, for example, by at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), etc. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.

[0192] Storage 1003 is a computer-readable recording medium, and may be composed of at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy disk, a magnetic strip, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage medium may be, for example, a database, a server, or other appropriate medium including at least one of memory 1002 and storage 1003.

[0193] 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 transmitter 101, receiver 102, receiver 201, transmitter 202, etc. may be realized by the communication device 1004.

[0194] 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, an 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).

[0195] 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.

[0196] Furthermore, base station 100 and terminal 200 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 by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

[0197] (Information notification, signaling) The notification of information is not limited to the aspects / embodiments described in the present disclosure and may be performed using other methods. For example, the notification of information 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, Medium Access Control (MAC) signaling, and broadcast information (Master Information Block (MIB) and System Information Block (SIB))), other signals, or a combination thereof. Furthermore, the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0198] (Applicable system) Each aspect / embodiment described in the present disclosure may be applied to at least one of systems using LTE (Long Term Evolution), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), FRA (Future Radio Access), NR (New Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark), IEEE 802.20, UWB (Ultra-Wideband), Bluetooth (registered trademark), or other appropriate systems, and next-generation systems extended based on these. Furthermore, a combination of multiple systems (e.g., a combination of at least one of LTE and LTE-A with 5G) may also be applied.

[0199] (Processing procedures, etc.) The order of the procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless it is consistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0200] (Base station operation) In the present disclosure, a specific operation described as being performed by a base station may be performed by its upper node in some cases. In a network consisting of one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal may be performed by at least one of the base station and another network node other than the base station (for example, but not limited to, an MME or an S-GW). Although the above example illustrates a case where there is one other network node other than the base station, a combination of multiple other network nodes (for example, an MME and an S-GW) may also be used.

[0201] (input / output direction) Information, etc. (See the "Information, Signals" section) can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It can also be input / output via multiple network nodes.

[0202] (Handling of input and output information, etc.) Input and output information may be stored in a specific location (for example, memory) or may be managed using a management table. Input and output information may be overwritten, updated, or added to. Output information may be deleted. Input information may be sent to another device.

[0203] (Judgment method) The determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).

[0204] (software) 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.

[0205] 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.

[0206] (information, signals) 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.

[0207] Note that terms explained in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol may be a signal (signaling). Furthermore, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

[0208] ("System", "Network") As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0209] (parameter, channel name) 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 an index.

[0210] The names used for the above-described parameters are not intended to be limiting in any way. Furthermore, the mathematical expressions using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., 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.

[0211] (Base station (wireless base station)) In this disclosure, terms such as "base station (BS)," "radio base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0212] 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 (RRH: Remote Radio Head)). 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.

[0213] (Terminal) In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0214] A mobile station may also be referred to by those skilled in the art 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.

[0215] (Base station / Mobile station) At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a mobile body, or the mobile body itself. The mobile body may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile body (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). 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 IoT (Internet of Things) device such as a sensor.

[0216] 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, D2D (Device-to-Device) or V2X (Vehicle-to-Everything)). In this case, the terminal 200 may be configured to have the functions of the base station 100 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "side"). For example, terms such as an uplink channel and a downlink channel may be read as a side channel.

[0217] Similarly, the term "terminal" in the present disclosure may be read as "base station." In this case, the base station 100 may be configured to have the functions of the terminal 200 described above.

[0218] (Term meaning and interpretation) As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching in a table, database, or other data structure), ascertaining, and the like. "Determining" and "determining" may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and the like. Furthermore, "judgment" and "decision" can include regarding resolving, selecting, choosing, establishing, comparing, etc. as having been "judged" or "decided." In other words, "judgment" and "decision" can include regarding some action as having been "judged" or "decided." Furthermore, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

[0219] 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." As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using one or more wires, cables, and / or printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0220] (reference signal) The reference signal may also be abbreviated as RS (Reference Signal), and may also be called a pilot depending on the applicable standard.

[0221] (meaning "based on") 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."

[0222] ("First", "Second") 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.

[0223] (means) The "unit" in the configuration of each of the above devices may be replaced with "means," "circuit," "device," etc.

[0224] (open format) 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.

[0225] (Time units such as TTI, frequency units such as RB, radio frame structure) A radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be called a subframe. A subframe may further 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.

[0226] Numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel, and may indicate, for example, at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering operations performed by a transceiver in the frequency domain, and specific windowing operations performed by a transceiver in the time domain.

[0227] A slot may be composed of one or more symbols (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol) in the time domain. A slot may be a time unit based on numerology.

[0228] 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 (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

[0229] The radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals, and may be referred to by other names corresponding to the radio frame, subframe, slot, minislot, and symbol.

[0230] For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one minislot may be called a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0231] 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.

[0232] 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.

[0233] 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.

[0234] A TTI having a time length of 1 ms may be called a regular TTI (TTI in LTE 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.

[0235] 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.

[0236] A resource block (RB) is a resource allocation unit in the time domain and 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.

[0237] The time domain of an RB may include one or more symbols 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.

[0238] 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, or the like.

[0239] 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.

[0240] 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.

[0241] The BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). One or more BWPs may be configured for a UE within one carrier.

[0242] 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."

[0243] 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.

[0244] 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.

[0245] 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."

[0246] (Variations of form, etc.) Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Furthermore, notification of predetermined information (e.g., notification that "X is true") is not limited to being done explicitly, but may be done implicitly (e.g., by not notifying the predetermined information).

[0247] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure. [Industrial Applicability]

[0248] One aspect of the present disclosure is useful in mobile communication systems. [Explanation of symbols]

[0249] 10. Wireless communication systems 20 NG-RAN 100 base stations 200 devices 101,202 Transmitter 102,201 Receiver 103,203 Control unit

Claims

1. a control unit that determines, based on a first redundancy version, a start position of bit selection of a first bit sequence to be transmitted in a first slot among first N slots assigned for a transmission method in which a transmission block is transmitted across multiple slots, and determines, based on the last bit of an (n-1)th bit sequence to be transmitted in an n-th slot (n is an integer between 2 and N) other than the first slot, based on the last bit of the (n-1)th bit sequence to be transmitted in the (n-1)th slot; a transmitter configured to transmit the first bit sequence in the first slot and the nth bit sequence in the nth slot; Equipped with the control unit determines, after the first N slots, a start position of bit selection of a bit sequence to be transmitted in a first slot among second slots to which the transmission method is applied, based on a second redundancy version different from the first redundancy version. Terminal.

2. The device is determining, based on a first redundancy version, a start position of bit selection of a first bit sequence to be transmitted in a first slot among first N slots assigned for a transmission method in which a transmission block is transmitted across multiple slots; and determining, based on a first redundancy version, a start position of bit selection of an nth bit sequence to be transmitted in an nth slot (n is an integer between 2 and N) other than the first slot, based on the last bit of an (n-1)th bit sequence to be transmitted in the (n-1)th slot; transmitting the first bit sequence in the first slot, and transmitting the nth bit sequence in the nth slot; determining, after the first N slots, a start position of bit selection of a bit string to be transmitted in a first slot among second slots to which the transmission method is applied, based on a second redundancy version different from the first redundancy version; Wireless communication method.

3. a control unit that determines, based on a first redundancy version, a start position of bit selection of a first bit sequence to be transmitted in a first slot among first N slots assigned for a transmission method in which a transmission block is transmitted across multiple slots, and determines, based on the last bit of an (n-1)th bit sequence to be transmitted in an n-th slot (n is an integer between 2 and N) other than the first slot, based on the last bit of the (n-1)th bit sequence to be transmitted in the (n-1)th slot; a transmitter configured to transmit the first bit sequence in the first slot and the nth bit sequence in the nth slot; a terminal comprising: a receiving unit that receives the first bit string in the first slot and the nth bit string in the nth slot; A base station; and the control unit determines, after the first N slots, a start position of bit selection of a bit sequence to be transmitted in a first slot among second slots to which the transmission method is applied, based on a second redundancy version different from the first redundancy version. Wireless communication system.

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