terminal

Abstract

The terminal includes: a transmitting unit that uses an uplink channel to transmit an uplink signal; and a receiving unit that receives downlink control information including an information element indicating time domain resource allocation of the uplink channel, wherein the transmitting unit transmits the uplink signal using resources spanning consecutive time slots based on the downlink control information.

Description

Technical Field

[0001] The present disclosure relates to a terminal performing wireless communication, and more particularly, to a terminal transmitting an uplink signal using an uplink channel. Background Art

[0002] In the 3rd Generation Partnership Project (3GPP), the fifth generation mobile communication system (also called 5G, New Radio (NR) or Next Generation (NG)) is standardized, and the standardization of the next generation called Beyond 5G, 5G Evolution or 6G is also underway.

[0003] 3GPP Release 15 and Release 16 (NR) standardize operations in bands encompassing multiple frequency ranges, specifically, FR1 (410 MHz to 7.125 GHz) and FR2 (24.25 GHz to 52.6 GHz).

[0004] In 3GPP Release 17, coverage enhancement has become an issue in FR1 and FR2 (Non-Patent Document 1). This has led to expectations for improvements in channel quality for channels such as the PUSCH (Physical Uplink Shared Channel), PDCCH (Physical Downlink Control Channel), and PUCCH (Physical Uplink Control Channel).

[0005] Prior art literature

[0006] Non-patent literature

[0007] Non-Patent Document 1: “New SID on NR Coverage Enhancement,” RP-193240, 3GPP TSGRAN Meeting #86, 3GPP, December 2019 Summary of the Invention

[0008] However, as a TDD mode, a mode such as "DDDSU" is considered. "D" means a time slot used only for downlink symbols (hereinafter referred to as a D time slot), "U" means a time slot used only for uplink symbols (hereinafter referred to as a U time slot), and "S" means a time slot used for both downlink and uplink symbols (hereinafter referred to as an S time slot).

[0009] Assuming the above-mentioned TDD mode, consider the case where resources (symbols) that can be allocated to the PUSCH span consecutive slots. On the other hand, resources that can be allocated by one DCI (Downlink Control Information) are determined with one slot as a unit.

[0010] As a result of intensive research, the inventors discovered the possibility of improving the channel quality of the PUSCH based on the knowledge that resources (symbols) to which the PUSCH can be allocated span consecutive time slots.

[0011] Therefore, the following disclosure has been made in view of such circumstances, and an object of the disclosure is to provide a terminal capable of improving channel quality.

[0012] The present invention discloses a terminal comprising: a transmitting unit that uses an uplink channel to transmit an uplink signal; and a receiving unit that receives downlink control information containing an "information element indicating time domain resource allocation of the uplink channel", wherein the transmitting unit transmits the uplink signal using resources spanning consecutive time slots based on the downlink control information. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a diagram schematically illustrating the overall configuration of the wireless communication system 10 .

[0014] Figure 2 1 is a diagram showing frequency ranges used in the wireless communication system 10 .

[0015] Figure 3 1 is a diagram showing a configuration example of a radio frame, a subframe, and a time slot used in the wireless communication system 10 .

[0016] Figure 4 FIG. 2 is a functional block diagram of UE 200 .

[0017] Figure 5 This is a diagram for explaining special transmission.

[0018] Figure 6 It is a diagram showing an operation example.

[0019] Figure 7This is a diagram for explaining the PUSCH mapping type according to Modification Example 1.

[0020] Figure 8 This is a diagram for explaining DM-RS positions (DM-RS positions) according to Modification Example 2.

[0021] Figure 9 This is a diagram for explaining DM-RS positions (DM-RS positions) according to Modification Example 2.

[0022] Figure 10 This is a diagram showing an operation example of Modification Example 3.

[0023] Figure 11 This is a diagram showing an example of a PUSCH-Config information element (ASN.1 format).

[0024] Figure 12 This is a diagram showing an operation example of Modification Example 5.

[0025] Figure 13 This is a diagram showing an example of the hardware configuration of the UE 200 . DETAILED DESCRIPTION

[0026] Hereinafter, the embodiment will be described with reference to the accompanying drawings. In addition, the same or similar reference numerals are given to the same functions and structures, and their descriptions are omitted as appropriate.

[0027] [Implementation Method]

[0028] (1) Overall schematic structure of wireless communication system

[0029] Figure 1 This is an example of the overall schematic structure of a wireless communication system 10 according to an embodiment. The wireless communication system 10 is a wireless communication system that complies with the 5G New Radio (NR) standard and includes a next-generation radio access network 20 (NG-RAN 20) and a terminal 200 (UE 200).

[0030] In addition, the wireless communication system 10 may be a wireless communication system that complies with a method called Beyond 5G, 5G Evolution, or 6G.

[0031] NG-RAN 20 includes a radio base station 100A (hereinafter referred to as gNB 100A) and a radio base station 100B (hereinafter referred to as gNB 100B). In addition, the specific structure of the wireless communication system 10 including the number of gNBs and UEs is not limited to Figure 1 Example shown.

[0032] The NG-RAN 20 actually comprises multiple NG-RAN nodes, specifically multiple gNBs (or ng-eNBs), connected to the 5G core network (5GC, not shown). The NG-RAN 20 and 5GC can be simply referred to as the "network."

[0033] gNB 100A and gNB 100B are 5G-compliant radio base stations that perform 5G-compliant wireless communications with UE 200. gNB 100A, gNB 100B, and UE 200 support Massive MIMO (Multiple Input Multiple Output), which generates a more directional beam (BM) by controlling radio signals transmitted from multiple antenna elements; Carrier Aggregation (CA), which bundles and uses multiple component carriers (CCs); and Dual Connectivity (DC), which allows the UE to communicate with two or more transport blocks simultaneously with each of two NG-RAN nodes.

[0034] Furthermore, the wireless communication system 10 supports multiple frequency ranges (FR). Figure 2 The frequency range used in the wireless communication system 10 is shown.

[0035] like Figure 2 As shown, the wireless communication system 10 supports FR1 and FR2. The frequency bands of each FR are as follows.

[0036] FR1: 410MHz~7.125GHz

[0037] FR2: 24.25GHz to 52.6GHz

[0038] In FR1, a sub-carrier spacing (SCS) of 15, 30, or 60 kHz can be used, and a bandwidth (BW) of 5 to 100 MHz can be used. FR2 has a higher frequency than FR1, and an SCS of 60 or 120 kHz (including 240 kHz) can be used, and a bandwidth (BW) of 50 to 400 MHz can be used.

[0039] In addition, SCS can also be interpreted as a numerology. The numerology is defined in 3GPP TS 38.300 and corresponds to a subcarrier spacing in the frequency domain.

[0040] Furthermore, the wireless communication system 10 also supports frequency bands higher than the FR2 frequency band. Specifically, the wireless communication system 10 supports frequency bands exceeding 52.6 GHz up to 114.25 GHz. For convenience, such high frequency bands are referred to as "FR2x."

[0041] To solve this problem, when using a band exceeding 52.6 GHz, CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplexing) / DFT-S-OFDM (Discrete Fourier Transform-Spread) with a larger subcarrier spacing (SCS) can be applied.

[0042] Figure 3 An example of the structure of a radio frame, a subframe, and a time slot used in the wireless communication system 10 is shown.

[0043] like Figure 3 As shown, one time slot consists of 14 symbols. The larger (wider) the SCS is, the shorter the symbol period (and the time slot period) is. Figure 3 The interval (frequency) shown is, for example, 480 kHz, 960 kHz, etc.

[0044] Furthermore, the number of symbols constituting one slot does not necessarily have to be 14 symbols (e.g., 28 or 56 symbols). Furthermore, the number of slots per subframe may also vary depending on the SCS.

[0045] in addition, Figure 3 The time direction (t) shown may also be referred to as time domain, symbol period, or symbol time, etc. Furthermore, the frequency direction may also be referred to as frequency domain, resource block, subcarrier, or bandwidth part (BWP).

[0046] DMRS is a type of reference signal used for various channels. Unless otherwise specified, the term "DMRS" refers to the downlink data channel, specifically the DMRS used for the PDSCH (Physical Downlink Shared Channel). However, the DMRS used for the uplink data channel, specifically the PUSCH (Physical Uplink Shared Channel), can be interpreted in the same way as the DMRS used for the PDSCH.

[0047] DMRS may be used as a device, for example, as part of coherent demodulation, for channel estimation in UE 200. DMRS may only be present in resource blocks (RBs) used for PDSCH transmission.

[0048] DMRS can have multiple mapping types. Specifically, DMRS has mapping type A and mapping type B. In mapping type A, the initial DMRS is configured in the second or third codeword of the time slot. In mapping type A, DMRS can be mapped based on the time slot boundary, regardless of where in the time slot actual data transmission begins. The reason why the initial DMRS is configured in the second or third codeword of the time slot can also be explained as being due to the initial DMRS being configured after the control resource set (CORESET).

[0049] In mapping type B, the first DMRS may be allocated to the first symbol of data allocation. That is, the position of the DMRS may be given relative to the location where data is allocated, rather than relative to the slot boundary.

[0050] In addition, DMRS can have multiple types. Specifically, DMRS has Type 1 and Type 2. Type 1 and Type 2 differ in frequency domain mapping and the maximum number of orthogonal reference signals. Type 1 can output up to 4 orthogonal signals in a single-symbol DMRS, and Type 2 can output up to 8 orthogonal signals in a double-symbol DMRS.

[0051] (2) Functional block structure of wireless communication system

[0052] Next, the functional block configuration of the wireless communication system 10 will be described. Specifically, the functional block configuration of the UE 200 will be described.

[0053] Figure 42 is a functional block diagram of UE 200. Figure 4 As shown, UE 200 includes a radio signal transceiver 210 , an amplifier 220 , a modem 230 , a control signal and reference signal processor 240 , an encoder / decoder 250 , a data transceiver 260 , and a controller 270 .

[0054] The wireless signal transceiver 210 transmits and receives wireless signals compliant with NR. It supports Massive MIMO, CA (combining multiple CCs), and DC (concurrent communication) where the UE communicates with two NG-RAN nodes simultaneously.

[0055] In the embodiment, the wireless signal transceiver 210 constitutes a transmitter that uses an uplink channel to transmit an uplink signal. The wireless signal transceiver 210 transmits an uplink signal using resources (symbols) spanning consecutive time slots based on downlink control information (DCI, described later). The following describes the case where the uplink channel is a PUSCH. Details of repeated transmission will be described later (see Figure 5 ).

[0056] The amplifier 220 is composed of a PA (Power Amplifier) and an LNA (Low Noise Amplifier). The amplifier 220 amplifies the signal output from the modem 230 to a predetermined power level. The amplifier 220 also amplifies the RF signal output from the wireless signal transceiver 210.

[0057] The modem unit 230 performs data modulation / demodulation, transmit power settings, and resource block allocation for each predetermined communication target (gNB 100 or another gNB). Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) and Discrete Fourier Transform-Spread OFDM (DFT-S-OFDM) can be applied in the modem unit 230. DFT-S-OFDM can be used not only in the uplink (UL) but also in the downlink (DL).

[0058] The control signal / reference signal processing unit 240 performs processing related to various control signals transmitted and received by the UE 200 and processing related to various reference signals transmitted and received by the UE 200 .

[0059] Specifically, the control signal / reference signal processing unit 240 receives various control signals, such as radio resource control (RRC) control signals, transmitted from the gNB 100 via predetermined control channels. Furthermore, the control signal / reference signal processing unit 240 transmits various control signals to the gNB 100 via predetermined control channels.

[0060] The control signal and reference signal processing unit 240 performs processing using reference signals (RS) such as a demodulation reference signal (DMRS) and a phase tracking reference signal (PTRS).

[0061] DMRS is a terminal-specific reference signal (pilot signal) known between the base station and the terminal for estimating a fading channel used for data demodulation. PTRS is a terminal-specific reference signal for estimating phase noise, a problem in high-frequency bands.

[0062] Furthermore, reference signals may include, in addition to DMRS and PTRS, a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information.

[0063] In addition, channels include control channels and data channels. The control channels include PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel, Downlink Control Information (DCI) including Random Access Radio Network Temporary Identifier (RA-RNTI), and Physical Broadcast Channel (PBCH).

[0064] In addition, data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel). Data refers to data transmitted via the data channel. The data channel can also be replaced by a shared channel.

[0065] Here, the control signal / reference signal processing unit 240 constitutes a receiving unit for receiving downlink control information (DCI). DCI includes fields storing DCI formats, carrier indicator (CI), BWP indicator, FDRA (Frequency Domain Resource Allocation), TDRA (Time Domain Resource Allocation), MCS (Modulation and Coding Scheme), HPN (HARQ Process Number), NDI (New Data Indicator), RV (Redundancy Version), and other fields as existing fields.

[0066] The value stored in the DCI Format field is an information element that specifies the format of the DCI. The value stored in the CI field is an information element that specifies the CC to which the DCI is applied. The value stored in the BWP Indicator field is an information element that specifies the BWP to which the DCI is applied. The BWP that can be specified by the BWP indicator is set using the information element (BandwidtPart-Config) included in the RRC message. The value stored in the FDRA field is an information element that specifies the frequency domain resources to which the DCI is applied. The frequency domain resources are determined by the value stored in the FDRA field and the information element (RA Type) included in the RRC message. The value stored in the TDRA field is an information element that specifies the time domain resources to which the DCI is applied. The time domain resources are determined by the value stored in the TDRA field and the information elements (pdsch-TimeDomainAllocationList, pusch-TimeDomainAllocationList) included in the RRC message. The time domain resources can also be determined by the value stored in the TDRA field and a default table. The value stored in the MCS field is an information element that specifies the MCS to which the DCI is applied. The MCS is determined by the value stored in the MCS field and an MCS table. The MCS table can be specified via an RRC message or determined by RNTI scrambling. The value stored in the HPN field is an information element that specifies the HARQ process to which the DCI is applied. The value stored in the NDI field is an information element used to determine whether the data to which the DCI is applied is the initially transmitted data. The value stored in the RV field is an information element that specifies the redundancy of the data to which the DCI is applied.

[0067] In an embodiment, the DCI includes a time domain resource allocation (TDRA) of an uplink channel (PUSCH). The DCI including the TDRA of the PUSCH may be a DCI of format 0_0 (Format 0_0), format 0_1 (Format 0_1), or format 0_2 (Format 0_2).

[0068] The encoding / decoding unit 250 performs data segmentation / concatenation and channel coding / decoding, etc. for each predetermined communication target (gNB 100 or other gNB).

[0069] Specifically, the encoding / decoding unit 250 divides the data output from the data transceiver 260 into predetermined sizes and performs channel coding on the divided data. In addition, the encoding / decoding unit 250 decodes the data output from the modulation / demodulation unit 230 and concatenates the decoded data.

[0070] The data transceiver 260 transmits and receives Protocol Data Units (PDUs) and Service Data Units (SDUs). Specifically, it assembles and disassembles PDUs and SDUs across multiple layers, including the Medium Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP). Furthermore, the data transceiver 260 performs data error correction and retransmission control based on the Hybrid Automatic Repeat Request (HARQ).

[0071] The control unit 270 controls each functional block constituting the UE 200. In particular, in the embodiment, the control unit 270 controls the transmission of uplink signals using resources (symbols) spanning consecutive time slots (hereinafter referred to as special transmission). Details of special transmission will be described later (see Figure 5 ).

[0072] (3) Specific delivery

[0073] The following describes special transmission. Here, the TDD mode is "DDDSU." "D" refers to a time slot used only for downlink symbols (hereinafter referred to as a D-slot), "U" refers to a time slot used only for uplink symbols (hereinafter referred to as a U-slot), and "S" refers to a time slot used for both downlink and uplink symbols (hereinafter referred to as an S-slot).

[0074] In addition, the case where one time slot contains 14 codewords is described. "D" means a codeword used for the downlink (hereinafter referred to as a D codeword), "U" means a codeword used for the uplink (hereinafter referred to as a U codeword), and "G" means a guard codeword (hereinafter referred to as a G codeword).

[0075] like Figure 5 As shown, in the embodiment, attention is paid to the case where the S slot and the U slot are consecutive and the last two symbols of the S slot are U symbols. In other words, attention is paid to the case where 16 U symbols are consecutive.

[0076] In existing specifications, the unit for allocating resources based on one DCI is one time slot. Research is underway to allocate PUSCH based on one DCI for 16 consecutive U symbols. Using repetition type B as the PUSCH repetition type has been considered as a method for virtually treating it as one unit, but this is not preferred for the following reasons. Specifically, for example, when eight repetitions are applied to two symbols, the coding rate is seven times (14 / 2) compared to when 14 symbols are allocated to the PUSCH, making it impossible to fully obtain the PUSCH channel characteristics at the cell edge. Furthermore, since DMRS mapping is required for each repetition, the resources that can be allocated to the PUSCH are reduced.

[0077] In contrast, in the embodiment, by newly introducing the concept of "transmission of uplink signals using resources (symbols) spanning consecutive time slots", it is allowed to allocate U symbols spanning consecutive time slots to PUSCH based on one DCI. Figure 5 As shown, the unit to which resources can be allocated based on one DCI is extended to "16 OFDM symbols (U symbols)".

[0078] Furthermore, in a specific transmission, restrictions may be placed on the resources that can be allocated to the PUSCH. The restriction may be to determine the number of consecutive time slots (n) to a predetermined number (for example, n=2). The restriction may also be to determine the maximum number of consecutive time slots. The restriction may also be to determine the starting position (S) of the codewords that can be allocated to the PUSCH to a predetermined position (for example, only S=12, 13). The restriction may also be to determine the number of codewords (L) that can be allocated to the PUSCH to a predetermined range (for example, 16≦L≦20). The restriction may also be to determine the number of codewords (L) that can be allocated to the PUSCH to a predetermined number (for example, L=16, 18, 20).

[0079] (4) Action example

[0080] Hereinafter, an operation example of the embodiment will be described.

[0081] like Figure 6 As shown, in step S10, UE 200 receives DCI from NG RAN 20. DCI includes TDRA and the like.

[0082] In step S11, UE 200 transmits an uplink signal using resources (symbols) spanning consecutive time slots (special transmission). The aforementioned restrictions may be imposed on such special transmission. UE 200 may also repeatedly transmit an uplink signal using the PUSCH.

[0083] (5) Actions and effects

[0084] In this embodiment, by expanding the unit of resource allocation based on a single DCI to "U symbols spanning consecutive time slots," it is possible to suppress increases in coding rates and decreases in resources allocable to the PUSCH, while effectively utilizing U symbols spanning consecutive time slots as PUSCH resources. This, in turn, enables enhanced PUSCH coverage.

[0085] [Change Example 1]

[0086] Hereinafter, a modification example 1 of the embodiment will be described. Hereinafter, differences from the embodiment will be mainly described.

[0087] In Modification 1, a case where a specific mapping type (for example, type C) for allocating resources spanning consecutive slots is determined as a PUSCH mapping type (PUSCH mapping type) will be described.

[0088] Specifically, if Figure 7 As shown, the PUSCH mapping type determines the starting position (S) of the symbols that can be allocated to the PUSCH and the number (L) of symbols that can be allocated to the PUSCH. The PUSCH mapping type can be determined by S+L. The values of S, L, and S+L can be determined according to the length of each CP (Cyclic Prefix). The values of S, L, and S+L can also be determined according to each PUSCH repetition type.

[0089] Existing PUSCH mapping types include Type A and Type B. Type A is used only for repetition Type A, while Type B is used for both repetition Type A and repetition Type B. In existing Type A and Type B, allocation in slot units is assumed, so the value of L does not exceed 14 (see 3GPP TS 38.214 V16.2.0, Section 6.1.2).

[0090] In contrast, in the special mapping type (Type C) newly defined for special transmission, the value of L is determined to be able to take values exceeding "14." For example, in Type C applied to the normal cyclic prefix, the value of L can take values such as 15, 16, ..., and n. Similarly, in Type C applied to the extended cyclic prefix, the value of L can take values such as 15, 16, ..., and m. Furthermore, n and m can be natural numbers greater than 16, and n and m can be the same or different values. It should be noted that with this expansion, the range of possible values for S+L is also changed.

[0091] In addition, the values of PUSCH mapping Type, S, and L may be determined by TDRA included in the DCI. The values specifying S and L may be called SLIV (Start and Length Indicator Value). Figure 7 The shown table may be a preset table.

[0092] [Change Example 2]

[0093] Hereinafter, a modification example 2 of the embodiment will be described. Hereinafter, differences from the embodiment will be mainly described.

[0094] In Modification Example 2, a case will be described where a specific mapping position for resource allocation spanning consecutive slots is determined as a mapping position of a demodulation reference signal (hereinafter referred to as DMRS) of an uplink channel.

[0095] Specifically, if Figure 8 As shown, the mapping position of DMRS (in Figure 8 DM-RS positions) can be determined for each PUSCH mapping type described in Modification Example 1. In addition, when the PUSCH mapping type is type A, l d The value of may be the interval between the first symbol to which PUSCH resources are allocated and the last symbol to which PUSCH resources are allocated within a time slot. In the case where PUSCH mapping type is type B, l dThe value of can be the interval of PUSCH resources scheduled when intra-slot frequency hopping is not used, or the interval of each hop when intra-slot frequency hopping is used. When the PUSCH mapping type is type A, the value of l0 can be determined by the higher layer parameter (dmpr-TypeA-Position). When the PUSCH mapping type is type B, the value of l0 can be a predetermined value (for example, "0"). Figure 8 As shown, in the mapping position of DMRS defined according to the existing PUSCH mapping type, since the allocation of time slot units is assumed, l d The value of will not exceed "14" (refer to §6.4.1.1.3 of 3GPP TS 38.211 V16.2.0).

[0096] In contrast, Figure 9 As shown, in the specific mapping position newly defined for specific transmission, l d The value of is determined to be capable of taking a value exceeding "14". A specific mapping position may be associated with type C described in Modification Example 1. d The method for determining α and l0 can be the same as the existing determination method.

[0097] in addition, Figure 9 Fixed values other than l0 in the table shown (e.g., l d =4's "4", l d =8 rows of "3" or "6" etc.) can be Figure 8 The same fixed value as l0 in the table shown can also be Figure 8 The fixed values other than l0 in the table shown are different values. Figure 9 The number of dmrs-AdditionalPosition (pos0 to pos3) in the table shown is the same as Figure 8 The number of dmrs-AdditionalPositions ("4") in the table shown is the same. However, considering the expansion of the number of symbols handled as one unit, Figure 9 The number of dmrs-AdditionalPosition in the table shown can be compared Figure 8 The number of dmrs-AdditionalPositions in the table shown is large.

[0098] [Change Example 3]

[0099] Hereinafter, a modification example 3 of the embodiment will be described. Hereinafter, differences from the embodiment will be mainly described.

[0100] In Modification 3, a case is described in which NG RAN 20 explicitly configures the specific mapping type (e.g., Type C) described in Modification 1. Specifically, UE 200 receives a message including an information element indicating the configuration of the specific mapping type. This information element may be included in the PUSCH-Config information element. This information element is a newly defined information element and may also be referred to as drms-UplinkForPUSCH-mappingTypeC.

[0101] (1) Action example

[0102] Next, an operation example of Modification Example 3 will be described.

[0103] like Figure 10 As shown, in step S20, UE 200 receives an RRC message. The RRC message includes drms-UplinkForPUSCH-mappingTypeC indicating a setting of a specific mapping type (eg, type C). Figure 11 As shown, drms-UplinkForPUSCH-mappingTypeC can be an extended IE of PUSCH-Config information.

[0104] In step S21, UE 200 receives DCI from NG RAN 20. DCI includes TDRA and the like.

[0105] In step S22, UE 200 transmits an uplink signal using resources (symbols) spanning consecutive time slots (specific transmission). In such specific transmission, the aforementioned restrictions may be imposed. UE 200 may transmit a DRMS at a specific mapping location. Furthermore, UE 200 may also repeatedly transmit an uplink signal using the PUSCH.

[0106] [Change Example 4]

[0107] Hereinafter, a modification example 4 of the embodiment will be described. Hereinafter, differences from the embodiment will be mainly described.

[0108] In Modification Example 4, a case is described in which other processing is extended by introducing the transmission of uplink signals (specific transmission) using resources (code elements) spanning consecutive time slots, i.e., the introduction of the specific mapping type (e.g., type C) described in Modification Example 1.

[0109] (1) Repetition Type

[0110] A new repetition type (eg, repetition type C) may be imported that corresponds to a specific mapping type.

[0111] For example, repetition type C can be explicitly set using an RRC message, etc. In repetition type C, a symbol spanning consecutive time slots can be used as one unit (repetition unit), and repetition transmission can be performed for each repetition unit. The position of the symbol used in the repetition transmission can be the same for each repetition unit. Such repetition type C can be considered an extension of repetition type A. Similar to repetition type A, the number of repetition transmissions of repetition type C can be explicitly set using a PUSCH-ConfigInformation element, etc. In repetition type C, the time slots used in the repetition transmission can be explicitly set by the NG RAN 20, or can be implicitly set by the NG RAN 20. The time slots used in the repetition transmission can also be predetermined according to the TDD mode.

[0112] In repetition type C, repetition transmission can be performed using consecutive time slots or non-consecutive time slots. In repetition type C, repetition transmission can be performed using consecutive repetition units or non-consecutive repetition units.

[0113] Furthermore, for a specific mapping type, it is not necessary to apply the repetitive transmission of uplink signals using the PUSCH.

[0114] (2) Frequency hopping

[0115] It is possible to import new Frequency hopping that corresponds to a specific mapping type.

[0116] The new Frequency hopping can be explicitly set through RRC messages, etc. In the new Frequency hopping, the same Frequency hopping (Inter-slot or Intra-slot) as in Repetition Type A can be used. In Inter-slot Frequency hopping, parameters such as whether Frequency hopping can be applied and the frequency offset value can be explicitly set through Config Information element, etc. In Intra-slot Frequency hopping, parameters such as whether Frequency hopping can be applied and the frequency offset value can also be explicitly set through Config Information element, etc. In Intra-slot Frequency hopping, the same symbol allocation as in Repetition Type A can be applied.

[0117] In addition, for certain mapping types, frequency hopping may not be applied.

[0118] [Change Example 5]

[0119] Hereinafter, a fifth modification of the embodiment will be described. Hereinafter, differences from the embodiment will be mainly described.

[0120] In Modification 5, UE 200 transmits a message including an information element regarding the capability of allocating resources across consecutive time slots (hereinafter referred to as UE capability). Figure 12 Step S30). UE Capability may include the following information elements.

[0121] For example, UECapability may include an information element indicating whether it supports the aforementioned specific transmission. UECapability may also include an information element indicating whether it supports a specific mapping type (e.g., Type C). UECapability may also include an information element indicating whether it supports the newly defined processing (specific mapping position, repetition type C, new frequency hopping) associated with the introduction of a specific mapping type. Hereinafter, these information elements are referred to as information elements indicating whether they support the specific mapping type.

[0122] For example, UE Capability may include an information element indicating whether or not the UE 200 is capable of supporting the service for each frequency. Such an information element may include an information element specifying all frequencies, an information element indicating a dedicated frequency, or an information element indicating a frequency range (e.g., FR1, FR2, etc.). The information element specifying all frequencies can indicate whether or not the UE 200 is capable of supporting the service.

[0123] For example, UE Capability may include information elements indicating whether each duplex mode is compatible. Such information elements may include information elements specifying all duplex modes or information elements indicating a specific duplex mode (TDD, FDD, etc.). Information elements specifying all duplex modes can indicate whether UE 200 is compatible.

[0124] [Other embodiments]

[0125] As mentioned above, although the content of this invention was demonstrated based on embodiment, this invention is not limited to these descriptions, and it is obvious to those skilled in the art that various deformation|transformations and improvements can be made.

[0126] Although not specifically mentioned in the embodiments, when specific transmission (specific mapping type) is configured in the aforementioned repetition type B, an extension can be implemented to change the handling of invalid symbols from "drop" to "shift." "Drop" means invalid symbols are counted as PUSCH transmission occasions, while "shift" means invalid symbols are not counted as PUSCH transmission occasions. In this case, S slots containing a mixture of invalid and valid symbols can be counted as PUSCH transmission occasions.

[0127] In the embodiments, the PUSCH is illustrated as a channel to which specific transmission (specific mapping type) is applied. However, the embodiments are not limited thereto. The embodiments may apply specific transmission (specific mapping type) as an extension of resource allocation to a channel in which the unit of resource allocation based on one DCI is one time slot. For example, the channel to which specific transmission (specific mapping type) is applied may be the PUCCH.

[0128] Although not specifically mentioned in the embodiment, UE 200 may receive a message including an information element indicating whether repeated transmission using non-continuous specific time slots is set. Such a message may be an RRC message.

[0129] The block diagram used in the description of the above embodiment ( Figure 4 ) shows blocks in units of functions. These functional blocks (structural parts) are implemented by any combination of at least one of hardware and software. In addition, there is no particular limitation on the implementation method of each functional block. That is, each functional block can be implemented using a device that is physically or logically combined, or it can be implemented by connecting two or more physically or logically separated devices directly or indirectly (for example, using wired or wireless connections) and using these multiple devices. The functional block can also be implemented by combining software with the above-mentioned one device or the above-mentioned multiple devices.

[0130] Functionally, these include, but are not limited to, judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning. For example, a functional block (structural unit) that enables the transmission function is called a transmitting unit or a transmitter. In short, as described above, there is no particular limitation on the implementation method.

[0131] Furthermore, the above-mentioned UE 200 (the device) may also function as a computer that performs the processing of the wireless communication method of the present disclosure. Figure 13 FIG. 1 is a diagram showing an example of the hardware structure of the device. Figure 13 As shown, the device may also be configured as a computer device including a processor 1001 , a memory 1002 (memory), a storage 1003 (storage), a communication device 1004 , an input device 1005 , an output device 1006 , and a bus 1007 .

[0132] In the following description, the word "device" can be replaced with "circuit," "device," "unit," etc. The hardware structure of the device may include one or more of the devices shown in the figures, or may exclude some of the devices.

[0133] Each functional block of the device (refer to Figure 4 ) is implemented by any hardware element or combination of hardware elements in the computer device.

[0134] In addition, each function in the device is implemented by the following method: predetermined software (program) is read into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls the communication of the communication device 1004 or controls at least one of the reading and writing of data in the memory 1002 and the storage 1003.

[0135] The processor 1001 controls the entire computer by, for example, running an operating system. The processor 1001 may be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, a calculation device, registers, and the like.

[0136] In addition, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the memory 1003 and the communication device 1004 to the memory 1002, and performs various processes accordingly. As a program, a program that causes the computer to perform at least a part of the actions described in the above-mentioned embodiment is used. Moreover, with respect to the above-mentioned various processes, although it is described that the above-mentioned various processes are performed by one processor 1001, the above-mentioned various processes can also be performed simultaneously or sequentially by more than two processors 1001. The processor 1001 can also be installed by one or more chips. In addition, the program can also be sent from the network via a telecommunications line.

[0137] The memory 1002 is a computer-readable recording medium and may be composed of, for example, at least one of a read-only memory (ROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), and a random access memory (RAM). The memory 1002 may also be referred to as a register, a cache, or a main memory (main storage device). The memory 1002 may store programs (program code), software modules, and the like that enable execution of the method according to an embodiment of the present disclosure.

[0138] The memory 1003 is a computer-readable recording medium and may be composed of, for example, at least one of an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a floppy disk, a magneto-optical disk (e.g., a compact disc, a digital versatile disc, a Blu-ray (registered trademark) disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy disk, a magnetic stripe, and the like. The memory 1003 may also be referred to as an auxiliary storage device. The recording medium may be, for example, a database, a server, or other appropriate medium that includes at least one of the memory 1002 and the memory 1003.

[0139] The communication device 1004 is hardware (transceiver) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, etc.

[0140] For example, the communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like in order to realize at least one of frequency division duplex (FDD) and time division duplex (TDD).

[0141] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.). The output device 1006 is an output device that outputs to the outside (e.g., a display, speaker, LED light, etc.). Alternatively, the input device 1005 and the output device 1006 may be integrally formed (e.g., a touch panel).

[0142] Furthermore, the processor 1001 and the memory 1002 and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured using a single bus or may be configured using separate buses for each device.

[0143] Furthermore, the device 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 implemented using such hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0144] In addition, the notification of information is not limited to the form / implementation method described in the present disclosure, and other methods may also be used. For example, the notification of information may be implemented through physical layer signaling (e.g., downlink control information (DCI: Downlink Control Information), uplink control information (UCI: Uplink Control Information), high-layer signaling (e.g., RRC signaling, medium access control (MAC: Medium Access Control) signaling, broadcast information (Master Information Block (MIB: Master Information Block), System Information Block (SIB: System Information Block)), other signals or a combination thereof. In addition, RRC signaling may also be referred to as an RRC message, such as an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0145] Each form / embodiment described in this disclosure may also be applied to at least one of Long Term Evolution (LTE), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), Future Radio Access (FRA), New Radio (NR), W-CDMA (registered trademark), GSM (registered trademark), CDMA 2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (registered trademark), systems using other appropriate systems, and next-generation systems extended therefrom. 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.

[0146] The processing procedures, timings, and flows of each form / implementation described in this disclosure may be performed in a different order unless there is a conflict. For example, the methods described in this disclosure use an illustrative order to present the elements of various steps, but are not limited to the specific order presented.

[0147] In this disclosure, specific actions performed by a base station are sometimes performed by its upper node, depending on the situation. In a network consisting of one or more network nodes including a base station, various actions performed to communicate with a terminal can be performed by at least one of the base station and other network nodes other than the base station (for example, an MME or S-GW, but not limited thereto). In the above description, the example of a single other network node other than the base station is illustrated, but the other network node may also be a combination of multiple other network nodes (for example, an MME and an S-GW).

[0148] Information or signals (such as information) can be output from a higher layer (or lower layer) to a lower layer (or higher layer), and can also be input or output via multiple network nodes.

[0149] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input or output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0150] The determination may be made using a value represented by one bit (0 or 1), a Boolean value (true or false), or a comparison of numerical values (for example, comparison with a predetermined value).

[0151] Each form / implementation described in this disclosure may be used individually or in combination, and may be switched between them depending on the execution. Furthermore, notification of scheduled information is not limited to being performed explicitly (e.g., a notification of "yes X") but may also be performed implicitly (e.g., not notifying the scheduled information).

[0152] Software, whether referred to as software, firmware, middleware, microcode, hardware description language, or by other names, shall be interpreted broadly to refer to instructions, sets of instructions, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0153] Furthermore, software, commands, information, and the like may be transmitted and received via a transmission medium. For example, if software is transmitted from a website, server, or other remote source using at least one of a wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and a wireless technology (infrared, microwave, etc.), then at least one of these wired and wireless technologies is included within the definition of a transmission medium.

[0154] The information, signals, etc. described in this disclosure may also be represented using any of a variety of different technologies. For example, data, commands, instructions, information, signals, bits, symbols, chips, etc. that may be referred to in the entire description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0155] In addition, the terms used in this disclosure and those required 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 also be referred to as a carrier frequency, a cell, a frequency carrier, etc.

[0156] As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0157] In addition, the information, parameters, etc. described in this disclosure may be represented by absolute values, relative values relative to predetermined values, or other corresponding information. For example, wireless resources may also be indicated by indexes.

[0158] The names used for the above parameters are not limiting in any way. Furthermore, the formulas and the like using these parameters may sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by appropriate names, and the names assigned to these various channels and information elements are not limiting in any way.

[0159] In this disclosure, terms such as "base station (BS)", "wireless 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" are used interchangeably. Base stations are also sometimes referred to as macrocells, small cells, femtocells, and picocells.

[0160] A base station can accommodate one or more (for example, three) cells (also known as sectors). When a base station accommodates multiple cells, the base station's overall coverage area can be divided into multiple smaller areas, each of which can also provide communication services through a base station subsystem (for example, a small base station (Remote Radio Head: RRH) for indoor use).

[0161] The terms "cell" or "sector" refer to a portion or the entire coverage area of at least one of a base station and a base station subsystem that provides communication services within the coverage area.

[0162] In the present disclosure, terms such as “mobile station (MS)”, “user terminal (user terminal)”, “user equipment (UE)”, and “terminal” may be used interchangeably.

[0163] For mobile stations, those skilled in the art sometimes also use the following terms to refer to them: subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other appropriate terms.

[0164] At least one of the base station and the mobile station may also be referred to as a transmitting device, a receiving device, a communication device, etc. In addition, at least one of the base station and the mobile station may be a device mounted on a mobile body, the mobile body itself, etc. The mobile body may be a means of transportation (e.g., a car, an airplane, etc.), a mobile body that moves unmanned (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0165] In addition, the base station in the present disclosure can also be replaced by a mobile station (user terminal, the same below). For example, regarding a structure in which the communication between a base station and a mobile station is replaced by communication between multiple mobile stations (for example, it can also be called device-to-device (D2D: Device-to-Device), vehicle-to-everything system (V2X: Vehicle-to-Everything), etc.), the various forms / implementations of the present disclosure can also be applied. In this case, it is also possible to set a structure in which the mobile station has the functions of the base station. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can also be replaced by side channels.

[0166] Likewise, the mobile station in the present disclosure may be replaced by a base station. In this case, the base station may have the same functions as the mobile station.

[0167] A radio frame may be composed of one or more frames in the time domain. In the time domain, one or more frames may be referred to as subframes.

[0168] A subframe may further be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (eg, 1 ms) that is not dependent on a numerology.

[0169] A parameter set may also be a communication parameter applied to at least one of the transmission and reception of a signal or channel. For example, a parameter set may represent at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering performed by the transceiver in the frequency domain, specific windowing performed by the transceiver in the time domain, and the like.

[0170] In the time domain, a slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) A slot may be a time unit based on a parameter set.

[0171] A time slot may contain multiple mini-slots. Each mini-slot may consist of one or more symbols in the time domain. Furthermore, a mini-slot may also be referred to as a sub-slot. A mini-slot may consist of fewer symbols than a time slot. A PDSCH (or PUSCH) transmitted in time units larger than a mini-slot may be referred to as PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may be referred to as PDSCH (or PUSCH) mapping type B.

[0172] Radio frame, subframe, time slot, mini-time slot, and symbol all represent time units for signal transmission. Radio frame, subframe, time slot, mini-time slot, and symbol may be referred to by other corresponding names.

[0173] For example, a subframe can also be called a transmission time interval (TTI), multiple consecutive subframes can also be called a TTI, and a slot or a mini-slot can also be called a TTI. That is, at least one of a subframe and a TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (for example, 1-13 symbols), or a period longer than 1ms. Furthermore, the unit representing a TTI may be called a slot, a mini-slot, or the like, rather than a subframe.

[0174] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communications. For example, in the LTE system, a base station schedules the allocation of radio resources (such as the frequency bandwidth and transmit power available to each user terminal) to each user terminal using TTIs. The definition of TTI is not limited to this.

[0175] The TTI can be the time unit for transmitting data packets (transport blocks), code blocks, code words, etc. after channel coding, and can also be the processing unit for scheduling, link adaptation, etc. In addition, when a TTI is given, the time interval (for example, the number of symbols) to which the transport blocks, code blocks, code words, etc. are actually mapped can be shorter than the TTI.

[0176] In addition, when one time slot or one mini-time slot is referred to as a TTI, one or more TTIs (i.e., one or more time slots or one or more mini-time slots) can constitute the minimum time unit for scheduling. In addition, the number of time slots (the number of mini-time slots) constituting the minimum time unit for scheduling can be controlled.

[0177] A TTI with a time length of 1 ms may also be referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may be referred to as a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a time slot, etc.

[0178] In addition, for long TTI (for example, normal TTI, subframe, etc.), it can be replaced with a TTI with a time length of more than 1ms, and for short TTI (for example, shortened TTI, etc.), it can be replaced with a TTI length that is smaller than long TTI (longTTI) and has a TTI length of more than 1ms.

[0179] A resource block (RB) is a unit of resource allocation in the time and frequency domains. In the frequency domain, it can contain one or more consecutive subcarriers. The number of subcarriers contained in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers contained in an RB can also be determined by the parameter set.

[0180] In addition, the time domain of an RB may include one or more symbols and may be the length of one slot, one mini-slot, one subframe, or one TTI. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

[0181] In addition, one or more RBs may also be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, and the like.

[0182] 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.

[0183] A Bandwidth Part (BWP) (also referred to as a fractional bandwidth) can represent a subset of contiguous common resource blocks (RBs) used for a particular parameter set within a carrier. Common RBs can be identified by their index relative to a common reference point for that carrier. PRBs can be defined within a BWP and numbered within that BWP.

[0184] 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 a single carrier.

[0185] At least one of the configured BWPs may be active, and it is not assumed that the UE transmits or receives predetermined signals / channels outside of the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may be replaced with "BWP".

[0186] The above-described structures of radio frames, subframes, slots, mini-slots, and symbols are merely examples. For example, various modifications may be made to the structures, such as the number of subframes in a radio frame, the number of slots per subframe or radio frame, the number of mini-slots within a slot, the number of symbols and RBs within a slot or mini-slot, the number of subcarriers within an RB, the number of symbols within a TTI, the symbol length, and the cyclic prefix (CP) length.

[0187] The terms "connected", "coupled" or any variation of these terms are intended to indicate any direct or indirect connection or combination between two or more elements, and may include situations where there is one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The combination or connection between elements may be a physical combination or connection, a logical combination or connection, or a combination of these. For example, "access" may be used instead of "connection". As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using at least one of one or more wires, cables and printed electrical connections, and as some non-limiting and non-inclusive examples, electromagnetic energy having wavelengths in the wireless frequency domain, microwave region and optical (visible and invisible) region may be used to "connect" or "couple" to each other.

[0188] The reference signal may be referred to as Reference Signal (RS) for short, or may be called a pilot signal depending on the applicable standard.

[0189] The phrase "according to" used in this disclosure does not mean "only according to" unless otherwise expressly stated. In other words, the phrase "according to" means both "only according to" and "at least according to."

[0190] The “unit” in the configuration of each of the above-mentioned devices may be replaced with a “section,” “circuit,” “device,” or the like.

[0191] Any reference to an element using the terms "first," "second," etc., as used in this disclosure, does not necessarily limit the number or order of these elements. These terms can be used as a convenient way to distinguish between two or more elements in this disclosure. Therefore, a reference to a first element and a second element does not imply that only two elements can be used or that the first element must precede the second element in any manner.

[0192] When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, the term "or" used in this disclosure does not mean an exclusive OR.

[0193] In the present disclosure, when an article is added by translation, such as a, an, and the in English, the present disclosure may also include cases where the noun following the article is in a plural form.

[0194] As used in this disclosure, terms such as “determining” and “determining” sometimes also include a variety of actions. For example, “determining” and “judging” may include considering matters that have been judged, calculated, calculated, processed, derived, investigated, searched (for example, searching in a table, database or other data structure), confirmed (for example, ascertained) as matters that have been “judged” or “determined”. In addition, “determining” and “receiving” (for example, receiving information), transmitting (for example, sending information), inputting, outputting, accessing (for example, accessing data in a memory) as matters that have been “judged” or “determined”. In addition, “determining” and “resolving” may include considering matters that have been selected, chosen, established, compared, etc. as matters that have been “judged” or “determined”. That is, "judgment" and "decision" can include matters that are considered to have "judged" or "decided" any action. In addition, "judgment (decision)" can also be replaced by "assuming (assuming)", "expecting (expecting)", "considering (considering)", etc.

[0195] In this disclosure, the phrase "A is different from B" may also mean "A and B are different from each other." Alternatively, the phrase may also mean "A and B are each different from C." Terms such as "separate" and "combined" may also be interpreted in the same way as "different."

[0196] While the present disclosure has been described in detail above, it should be 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 various modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is for illustrative purposes only and does not have any limiting meaning on the present disclosure.

[0197] Label Description

[0198] 10: Wireless communication system;

[0199] 20: NG-RAN;

[0200] 100: gNB;

[0201] 200:UE;

[0202] 210: wireless signal transceiver;

[0203] 220: magnification;

[0204] 230: Modem unit;

[0205] 240: control signal and reference signal processing unit;

[0206] 250: encoding / decoding unit;

[0207] 260: data transceiver unit;

[0208] 270: Control Department;

[0209] 1001: processor;

[0210] 1002: Memory;

[0211] 1003: memory;

[0212] 1004: Communication device;

[0213] 1005: input device;

[0214] 1006: output device;

[0215] 1007: Bus.

Claims

1. A terminal comprising: a receiving unit configured to receive downlink control information including time domain resource allocation of an uplink channel; and a transmitting unit that repeatedly transmits the uplink channel using a mapping type of a repetition type in which repetition transmission is performed based on a repetition unit exceeding 14 symbols across a plurality of time slots, according to the downlink control information; The positions of the symbols used in the iterative transmission are the same for each of the repetition units.

2. A wireless communication method, wherein: receiving downlink control information including time domain resource allocation for an uplink channel, repeatedly transmitting the uplink channel using a mapping type of a repetition type in which repetition transmission is performed based on a repetition unit exceeding 14 symbols across a plurality of time slots according to the downlink control information, The positions of the symbols used in the iterative transmission are the same for each of the repetition units.

3. A wireless communication system comprising a base station and a terminal, wherein: The base station includes a transmitting unit for transmitting downlink control information including time domain resource allocation of an uplink channel. The terminal has: a receiving unit configured to receive the downlink control information; and a transmitting unit that repeatedly transmits the uplink channel using a mapping type of a repetition type in which repetition transmission is performed based on a repetition unit exceeding 14 symbols across a plurality of time slots, according to the downlink control information; The positions of the symbols used in the iterative transmission are the same for each of the repetition units.

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