Terminal device, base station device, and communication method

Abstract

DMRS related to any or all of one or a plurality of PUSCHs is disposed in a first set among the plurality of slots, wherein the first set includes an initial slot to an X slot of the plurality of slots. The DMRS is not disposed in any slot other than the first set among the plurality of slots. The terminal device determines the value of the X on the basis of at least 1) a signal of a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot in which the DMRS is disposed, the pattern of the OFDM symbol in which the DMRS is disposed is given by a time-domain PUSCH resource allocation information included in the DCI format.

Description

Technical Field

[0001] The present invention relates to a terminal device, a base station device, and a communication method. This application claims priority to Japanese Patent Application No. 2020-012257, filed on January 29, 2020, the content of which is incorporated herein by reference.

Background Art

[0002] A radio access method and a radio network for cellular mobile communication (hereinafter, also referred to as "Long Term Evolution (LTE)" or "EUTRA: Evolved Universal Terrestrial Radio Access") are being studied in the Third Generation Partnership Project (3GPP: 3 rd Generation Partnership Project). In LTE, the base station device is also referred to as an eNodeB (evolved NodeB), and the terminal device is also referred to as a UE (User Equipment). LTE is a cellular communication system in which a plurality of areas covered by a base station device are arranged in a cell shape. A single base station device may manage a plurality of serving cells.

[0003] In 3GPP, in order to propose to the International Mobile Telecommunication (IMT)-2020, which is a standard for the next-generation mobile communication system formulated by the International Telecommunication Union (ITU), the study of the next-generation standard (NR: New Radio) is being carried out (Non-Patent Document 1). NR is required to satisfy the requirements assuming three scenarios of eMBB (enhanced Mobile BroadBand), mMTC (massive Machine Type Communication), and URLLC (Ultra Reliable and Low Latency Communication) within a single technical framework.

[0004] In 3GPP, the extension of services supported by NR is being considered (Non-Patent Document 2).

Prior Art Documents

Non-Patent Documents

[0005]

Non-Patent Document 1

Non-Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] One aspect of the present invention provides a terminal device that communicates efficiently, a communication method used in the terminal device, a base station device that communicates efficiently, and a communication method used in the base station device.

Means for Solving the Problems

[0007] (1) A first aspect of the present invention is a terminal device, comprising a receiving unit that receives a DCI format used for scheduling a PUSCH, and a transmitting unit that transmits the PUSCH in a plurality of slots. The size of the transport block is given based on a target coding rate indicated by the DCI format. The target coding rate is 1 or more, and the effective coding rate of the PUSCH is 1 or less. The effective coding rate is a value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.

[0008] (2) A second aspect of the present invention is a terminal device, comprising a receiving unit that receives a DCI format used for scheduling a PUSCH, and a transmitting unit that transmits the PUSCH. The target coding rate is determined based at least on a value of an MCS field included in the DCI format. When the PUSCH is arranged in a plurality of slots, the size of the transport block included in the PUSCH is determined based at least on the target coding rate and a first operator. When the PUSCH is arranged in one slot, the size of the transport block included in the PUSCH is determined based at least on the target coding rate. The first operator is not used for determining the size of the transport block.

[0009] (3) A third aspect of the present invention is a terminal device, comprising: a receiving unit that receives a DCI format used for scheduling one or more PUSCHs; and a transmitting unit that transmits the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in a first set of the plurality of slots, the first set includes slots from the first slot at the head of the plurality of slots to the Xth slot, and the DMRS is not arranged in slots other than the first set among the plurality of slots, and the value of X is determined based on at least 1) a signal from a higher layer, 2) the DCI format, or 3) the number of the plurality of slots, and in the slot where the DMRS is arranged, the pattern of OFDM symbols in which the DMRS is arranged is given based on time-domain PUSCH resource allocation information included in the DCI format.

[0010] (4) A fourth aspect of the present invention is a terminal device, comprising: a receiving unit that receives a DCI format used for scheduling one or more PUSCHs; and a transmitting unit that transmits the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in a slot with an index i that satisfies mod(i,X)=n among the plurality of slots, the DMRS is not arranged in a slot with an index i that does not satisfy mod(i,X)=n, the index i is 1) an index of a slot in a radio frame or 2) an index in the plurality of slots, n is an integer, and the value of X is determined based on at least 1) a signal from a higher layer, 2) the DCI format, or 3) the number of the plurality of slots, and in the slot where the DMRS is arranged, the pattern of OFDM symbols in which the DMRS is arranged is given based on time-domain PUSCH resource allocation information included in the DCI format.

[0011] (5) A fifth aspect of the present invention is a base station apparatus, comprising a transmission unit that transmits a DCI format used for scheduling of PUSCH, and a reception unit that receives the PUSCH in a plurality of slots, wherein the size of the transport block is given based on a target coding rate indicated by the DCI format, the target coding rate is 1 or more, the effective coding rate of the PUSCH is 1 or less, and the effective coding rate is a value obtained by dividing the size of the transport block by a product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.

[0012] (6) A sixth aspect of the present invention is a base station apparatus, comprising a transmission unit that transmits a DCI format used for scheduling of PUSCH, and a reception unit that receives the PUSCH, wherein the target coding rate is determined based at least on a value of an MCS field included in the DCI format, and when the PUSCH is arranged in a plurality of slots, the size of the transport block included in the PUSCH is determined based at least on the target coding rate and a first operator, and when the PUSCH is arranged in one slot, the size of the transport block included in the PUSCH is determined based at least on the target coding rate, and the first operator is not used for determining the size of the transport block.

[0013] (7) A seventh aspect of the present invention is a base station apparatus, comprising: a transmission unit that transmits a DCI format used for scheduling one or more PUSCHs; and a reception unit that receives the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in a first set of the plurality of slots, the first set includes slots from the first slot at the head of the plurality of slots to the Xth slot, and the DMRS is not arranged in slots other than the first set among the plurality of slots. A terminal device determines the value of X based on at least 1) a signal from a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of OFDM symbols in which the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0014] (8) An eighth aspect of the present invention is a base station apparatus, comprising: a transmission unit that transmits a DCI format used for scheduling one or more PUSCHs; and a reception unit that receives the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in slots with an index i that satisfies mod(i,X)=n among the plurality of slots, and the DMRS is not arranged in slots with an index i that does not satisfy mod(i,X)=n. The index i is 1) an index of a slot within a radio frame or 2) an index in the plurality of slots, and n is an integer. A terminal device determines the value of X based on at least 1) a signal from a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of OFDM symbols in which the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0015] (9) A ninth aspect of the present invention is a communication method used in a terminal device, comprising: receiving a DCI format used for scheduling a PUSCH; and transmitting the PUSCH in a plurality of slots, wherein the size of the transport block is given based on a target coding rate indicated by the DCI format, the target coding rate is 1 or more, the effective coding rate of the PUSCH is 1 or less, and the effective coding rate is a value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.

[0016] (10) A tenth aspect of the present invention is a communication method used in a terminal device, comprising: receiving a DCI format used for scheduling a PUSCH; and transmitting the PUSCH, wherein the target coding rate is determined based at least on the value of the MCS field included in the DCI format, when the PUSCH is arranged in a plurality of slots, the size of the transport block included in the PUSCH is determined based at least on the target coding rate and a first operator, and when the PUSCH is arranged in one slot, the size of the transport block included in the PUSCH is determined based at least on the target coding rate, and the first operator is not used for determining the size of the transport block.

[0017] (11) The eleventh aspect of the present invention is a communication method used in a terminal device, comprising the steps of receiving a DCI format used for scheduling one or more PUSCHs, and transmitting the one or more PUSCHs in a plurality of slots, wherein the DMRS related to any one or all of the one or more PUSCHs is arranged in a first set of the plurality of slots, the first set includes slots from the first slot at the head of the plurality of slots to the Xth slot, and the DMRS is not arranged in slots other than the first set among the plurality of slots. The terminal device determines the value of X based on at least 1) a signal from a higher layer, 2) the DCI format, or 3) the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of the OFDM symbols where the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0018] (12) The twelfth aspect of the present invention is a communication method used in a terminal device, comprising the steps of receiving a DCI format used for scheduling one or more PUSCHs, and transmitting the one or more PUSCHs in a plurality of slots, wherein the DMRS related to any one or all of the one or more PUSCHs is arranged in the slot with an index i that satisfies mod(i, X)=n among the plurality of slots, and the DMRS is not arranged in the slot with an index i that does not satisfy mod(i, X)=n. The index i is 1) the index of the slot in the radio frame, or 2) the index in the plurality of slots, and n is an integer. The terminal device determines the value of X based on at least 1) a signal from a higher layer, 2) the DCI format, or 3) the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of the OFDM symbols where the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0019] (13) A 13th aspect of the present invention is a communication method used in a base station apparatus, comprising: transmitting a DCI format used for scheduling PUSCH; and receiving the PUSCH in a plurality of slots, wherein a size of the transport block is given based on a target coding rate indicated by the DCI format, the target coding rate is 1 or more, an effective coding rate of the PUSCH is 1 or less, and the effective coding rate is a value obtained by dividing the size of the transport block by a product of a modulation order of the PUSCH and a number of resource elements of the PUSCH.

[0020] (14) A 14th aspect of the present invention is a communication method used in a base station apparatus, comprising: transmitting a DCI format used for scheduling PUSCH; and receiving the PUSCH, wherein a target coding rate is determined based at least on a value of an MCS field included in the DCI format, and when the PUSCH is arranged in a plurality of slots, a size of a transport block included in the PUSCH is determined based at least on the target coding rate and a first operator, and when the PUSCH is arranged in one slot, a size of a transport block included in the PUSCH is determined based at least on the target coding rate, and the first operator is not used for determining the size of the transport block.

[0021] (15) A 15th aspect of the present invention is a communication method used in a base station apparatus, comprising: transmitting a DCI format used for scheduling one or more PUSCHs; and receiving the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in a first set of the plurality of slots, the first set includes slots from the first slot at the head of the plurality of slots to the Xth slot, and the DMRS is not arranged in slots other than the first set among the plurality of slots. A terminal device determines the value of X based on at least 1) a signal from a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of the OFDM symbol in which the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0022] (16) A 16th aspect of the present invention is a communication method used in a base station apparatus, comprising: transmitting a DCI format used for scheduling one or more PUSCHs; and receiving the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in a slot having an index i that satisfies mod(i,X)=n among the plurality of slots, and the DMRS is not arranged in a slot having an index i that does not satisfy mod(i,X)=n. The index i is 1) an index of a slot in a radio frame or 2) an index in the plurality of slots, and n is an integer. A terminal device determines the value of X based on at least 1) a signal from a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of the OFDM symbol in which the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

Advantages of the Invention

[0023] According to one aspect of the present invention, the terminal device can communicate efficiently. Also, the base station device can communicate efficiently.

Brief Description of the Drawings

[0024]

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Best Mode for Carrying Out the Invention

[0025] Hereinafter, embodiments of the present invention will be described.

[0026] floor(C) may be the floor function for the real number C. For example, floor(C) may be a function that outputs the largest integer within a range not exceeding the real number C. ceil(D) may be the ceiling function for the real number D. For example, ceil(D) may be a function that outputs the smallest integer within a range not less than the real number D. mod(E,F) may be a function that outputs the remainder when E is divided by F. mod(E,F) may be a function that outputs a value corresponding to the remainder when E is divided by F. exp(G)=e^G. Here, e is the Napier's constant. H^I represents the I-th power of H. max(J,K) is a function that outputs the maximum value among J and K. Here, when J and K are equal, max(J,K) is a function that outputs J or K. min(L,M) is a function that outputs the minimum value among L and M. Here, when L and M are equal, min(L,M) is a function that outputs L or M. round(N) is a function that outputs the integer value of the value closest to N.

[0027] In a wireless communication system according to one aspect of the present embodiment, OFDM (Orthogonal Frequency Division Multiplex) is at least used. An OFDM symbol is a unit in the time domain of OFDM. An OFDM symbol includes at least one or a plurality of subcarriers. An OFDM symbol is converted into a time - continuous signal in baseband signal generation. In the downlink, CP - OFDM (Cyclic Prefix - Orthogonal Frequency Division Multiplex) is at least used. In the uplink, either CP - OFDM or DFT - s - OFDM (Discrete Fourier Transform - spread - Orthogonal Frequency Division Multiplex) is used. DFT - s - OFDM may be given by applying transform precoding to CP - OFDM.

[0028] The OFDM symbol may be a name including the CP added to the OFDM symbol. That is, a certain OFDM symbol may be composed of the certain OFDM symbol and the CP added to the certain OFDM symbol.

[0029] FIG. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment. In FIG. 1, the wireless communication system is configured to include at least terminal devices 1A to 1C and a base station device 3 (BS#3: Base station#3). Hereinafter, terminal devices 1A to 1C are also referred to as terminal device 1 (UE#1: User Equipment#1).

[0030] The base station device 3 may be configured to include one or a plurality of transmission devices (or transmission points, transceiver devices, transceiver points). When the base station device 3 is composed of a plurality of transmission devices, each of the plurality of transmission devices may be arranged at different positions.

[0031] The base station device 3 may provide one or more serving cells. The serving cell may be defined as a set of resources used for wireless communication. Also, the serving cell is also referred to as a cell.

[0032] The serving cell may be configured to include at least one downlink component carrier (downlink carrier) and / or at least one uplink component carrier (uplink carrier). The serving cell may be configured to include at least two downlink component carriers and / or at least two uplink component carriers. The downlink component carrier and the uplink component carrier are also referred to as component carriers.

[0033] For example, one resource grid may be provided for one component carrier. Also, one resource grid may be provided for one component carrier and a subcarrier spacing configuration μ. Here, the subcarrier spacing configuration μ is also referred to as numerology. The resource grid includes N size,μ grid,x N RB sc subcarriers. The resource grid starts from the common resource block N start,μ grid,x The common resource block N start,μ grid,x is also referred to as the reference point of the resource grid. The resource grid includes N subframe,μ symb OFDM symbols. x is a subscript indicating the transmission direction, indicating either the downlink or the uplink. One resource grid is provided for a set of a certain antenna port p, a certain subcarrier spacing configuration μ, and a certain transmission direction x.

[0034] N size,μ grid,x and N start,μ grid,x is given based at least on the upper layer parameter (CarrierBandwidth). The upper layer parameter is also referred to as an SCS specific carrier. One resource grid corresponds to one SCS specific carrier. One component carrier may include one or more SCS specific carriers. The SCS specific carrier may be included in the system information. For each SCS specific carrier, a setting μ of one subcarrier spacing may be given.

[0035] The subcarrier spacing (SCS) Δf may be Δf = 2 μ · 15 kHz. For example, the setting μ of the subcarrier spacing may indicate any one of 0, 1, 2, 3, or 4.

[0036] FIG. 2 is an example showing the relationship between the setting μ of the subcarrier spacing, the number N of OFDM symbols per slot slot symb , and the CP (cyclic Prefix) setting according to one aspect of the present embodiment. In FIG. 2A, for example, when the setting μ of the subcarrier spacing is 2 and the CP setting is normal cyclic prefix, N slot symb = 14, N frame,μ slot = 40, N subframe,μ slot = 4. Also, in FIG. 2B, for example, when the setting μ of the subcarrier spacing is 2 and the CP setting is extended cyclic prefix, N slot symb = 12, N frame,μ slot = 40, N subframe,μ slot = 4.

[0037] In a wireless communication system according to one aspect of the present embodiment, a time unit (time unit) T is used for expressing the length in the time domain. c It may be used. The time unit T c is such that T c = 1 / (Δf max ·N f ). Δf max = 480 kHz. N f = 4096. The constant κ is κ = Δf max ·N f / (Δf ref N f,ref ) = 64. Δf ref = 15 kHz. N f,ref = 2048.

[0038] Transmission of a signal in the downlink and / or transmission of a signal in the uplink may be organized by a radio frame (system frame, frame) of length T f . T f = (Δf max N f / 100)·T s = 10 ms. “·” indicates multiplication. The radio frame is configured to include 10 subframes. The length of a subframe T sf = (Δf max N f / 1000)·T s = 1 ms. The number of OFDM symbols per subframe is N subframe,μ symb = N slot symb N subframe,μ slot .

[0039] For setting the subcarrier spacing μ, the number and index of slots included in a subframe may be given. For example, the slot index n μ s is from 0 to N in a subframe subframe,μ slotIt may be given in ascending order as integer values in the range of -1. For setting the sub-carrier interval μ, the number and index of slots included in the radio frame may be given. Also, the slot index n μ s,f in the radio frame may be given in ascending order as integer values in the range from 0 to N frame,μ slot -1. N consecutive slot symb OFDM symbols may be included in one slot. N slot symb = 14.

[0040] FIG. 3 is a diagram showing an example of a method for configuring a resource grid according to an aspect of the present embodiment. The horizontal axis in FIG. 3 indicates the frequency domain. In FIG. 3, a configuration example of a resource grid with a sub-carrier interval μ1 in the component carrier 300 and a configuration example of a resource grid with a sub-carrier interval μ2 in the component carrier are shown. Thus, one or more sub-carrier intervals may be set for a certain component carrier. In FIG. 3, it is assumed that μ1 = μ2 - 1, but various aspects of the present embodiment are not limited to the condition of μ1 = μ2 - 1.

[0041] The component carrier 300 is a band having a predetermined width in the frequency domain.

[0042] The point 3000 is an identifier for specifying a certain sub-carrier. The point 3000 is also referred to as the point A. The common resource block (CRB) set 3100 is a set of common resource blocks for the sub-carrier interval setting μ1.

[0043] Among the common resource block sets 3100, the common resource block containing point 3000 (the block indicated by the upward-slanting diagonal lines in the upper right in Figure 3) is also referred to as the reference point of the common resource block set 3100. The reference point of the common resource block set 3100 may be the common resource block with index 0 in the common resource block set 3100.

[0044] Offset 3011 is the offset from the reference point of the common resource block set 3100 to the reference point of the resource grid 3001. Offset 3011 is indicated by the number of common resource blocks for the subcarrier spacing setting μ1. The resource grid 3001 starts from the reference point of the resource grid 3001 and contains N size,μ grid1,x common resource blocks.

[0045] Offset 3013 is the offset from the reference point of the resource grid 3001 to the reference point of the BWP (BandWidth Part) 3003 with index i1 (N start,μ BWP,i1 ).

[0046] The common resource block set 3200 is a set of common resource blocks for the subcarrier spacing setting μ2.

[0047] Among the common resource block sets 3200, the common resource block containing point 3000 (the block indicated by the upward-slanting diagonal lines in the upper left in Figure 3) is also referred to as the reference point of the common resource block set 3200. The reference point of the common resource block set 3200 may be the common resource block with index 0 in the common resource block set 3200.

[0048] Offset 3012 is the offset from the reference point of the common resource block set 3200 to the reference point of the resource grid 3002. Offset 3012 is indicated by the number of common resource blocks with respect to the subcarrier spacing μ2. The resource grid 3002 starts from the reference point of the resource grid 3002 and contains N size,μ grid2,x common resource blocks.

[0049] Offset 3014 is the offset from the reference point of the resource grid 3002 to the reference point of the BWP 3004 with index i2 (N start,μ BWP,i2 ).

[0050] FIG. 4 is a diagram showing a configuration example of the resource grid 3001 according to an aspect of the present embodiment. In the resource grid of FIG. 4, the horizontal axis is the OFDM symbol index l sym and the vertical axis is the subcarrier index k sc . The resource grid 3001 contains N size,μ grid1,x N RB sc subcarriers and N subframe,μ symb OFDM symbols. In the resource grid, the resource specified by the subcarrier index k sc and the OFDM symbol index l sym is also referred to as a resource element (RE).

[0051] A resource block (RB) contains N RB sc consecutive subcarriers. A resource block is a general term for a common resource block, a physical resource block (PRB), and a virtual resource block (VRB). Here, N RB sc = 12.

[0052] A resource block unit is a set of resources corresponding to 1 OFDM symbol in one resource block. That is, one resource block unit contains 12 resource elements corresponding to 1 OFDM symbol in one resource block.

[0053] For the common resource blocks for a certain subcarrier spacing setting μ, in a certain common resource block set, they are indexed in ascending order from 0 in the frequency domain (indexing). The common resource block with index 0 for a certain subcarrier spacing setting μ contains (or collides with, coincides with) point 3000. The index n of the common resource block for a certain subcarrier spacing setting μ μ CRB is n μ CRB =ceil(k sc / N RB sc ) and satisfies the relationship. Here, k sc =0 subcarrier is a subcarrier having the same center frequency as the center frequency of the subcarrier corresponding to point 3000.

[0054] For the physical resource blocks for a certain subcarrier spacing setting μ, in a certain BWP, they are indexed in ascending order from 0 in the frequency domain. The index n of the physical resource block for a certain subcarrier spacing setting μ μ PRB is n μ CRB =n μ PRB +N start,μ BWP,i and satisfies the relationship. Here, N start,μ BWP,i indicates the reference point of the BWP with index i.

[0055] A BWP is defined as a subset of the common resource blocks included in the resource grid. The BWP is the reference point N of the BWP start,μ BWP,istarting from N size,μ BWP,i includes N common resource blocks starting from. The BWP configured for the downlink carrier is also referred to as the downlink BWP. The BWP configured for the uplink component carrier is also referred to as the uplink BWP.

[0056] An antenna port may be defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed (An antenna port is defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed). For example, the channel may correspond to a physical channel. Also, the symbol may correspond to an OFDM symbol. Also, the symbol may correspond to a resource block unit. Also, the symbol may correspond to a resource element.

[0057] When the large scale property of the channel through which symbols are transmitted at one antenna port can be estimated from the channel through which symbols are transmitted at another antenna port, the two antenna ports are said to be Quasi Co-Located (QCL). The large scale property may at least include the long term characteristics of the channel. The large scale property may at least include some or all of delay spread, Doppler spread, Doppler shift, average gain, average delay, and some of the spatial Rx parameters. For the first antenna port and the second antenna port to be QCL with respect to the beam parameters, it may mean that the receive beam assumed by the receiving side for the first antenna port is the same as the receive beam assumed by the receiving side for the second antenna port. For the first antenna port and the second antenna port to be QCL with respect to the beam parameters, it may mean that the transmit beam assumed by the receiving side for the first antenna port is the same as the transmit beam assumed by the receiving side for the second antenna port. It may be assumed that the two antenna ports of the terminal device 1 are QCL when the large scale property of the channel through which symbols are transmitted at one antenna port can be estimated from the channel through which symbols are transmitted at another antenna port. That the two antenna ports are QCL may mean that it is assumed that the two antenna ports are QCL.

[0058] Carrier aggregation may involve communicating using a plurality of aggregated serving cells. Additionally, carrier aggregation may involve communicating using a plurality of aggregated component carriers. Further, carrier aggregation may involve communicating using a plurality of aggregated downlink component carriers. Moreover, carrier aggregation may involve communicating using a plurality of aggregated uplink component carriers.

[0059] FIG. 5 is a schematic block diagram showing a configuration example of the base station apparatus 3 according to one aspect of the present embodiment. As shown in FIG. 5, the base station apparatus 3 includes at least a part or all of a radio transmission / reception unit (physical layer processing unit) 30 and / or a part of the upper layer processing unit 34. The radio transmission / reception unit 30 includes at least a part or all of an antenna unit 31, an RF (Radio Frequency) unit 32, and a part of a baseband unit 33. The upper layer processing unit 34 includes at least a part or all of a medium access control layer processing unit 35 and a radio resource control (RRC) layer processing unit 36.

[0060] The radio transmission / reception unit 30 includes at least a part or all of a radio transmission unit 30a and a radio reception unit 30b. Here, the device configurations of the baseband units included in the radio transmission unit 30a and the radio reception unit 30b may be the same or different. Also, the device configurations of the RF units included in the radio transmission unit 30a and the radio reception unit 30b may be the same or different. Further, the device configurations of the antenna units included in the radio transmission unit 30a and the radio reception unit 30b may be the same or different.

[0061] For example, the wireless transmission unit 30a may generate and transmit the baseband signal of the PDSCH. For example, the wireless transmission unit 30a may generate and transmit the baseband signal of the PDCCH. For example, the wireless transmission unit 30a may generate and transmit the baseband signal of the PBCH. For example, the wireless transmission unit 30a may generate and transmit the baseband signal of the synchronization signal. For example, the wireless transmission unit 30a may generate and transmit the baseband signal of the PDSCH DMRS. For example, the wireless transmission unit 30a may generate and transmit the baseband signal of the PDCCH DMRS. For example, the wireless transmission unit 30a may generate and transmit the baseband signal of the CSI-RS. For example, the wireless transmission unit 30a may generate and transmit the baseband signal of the DL PTRS.

[0062] For example, the wireless transmission unit 30b may receive the PRACH. For example, the wireless transmission unit 30b may receive and demodulate the PUCCH. The wireless transmission unit 30b may receive and demodulate the PUSCH. For example, the wireless transmission unit 30b may receive the PUCCH DMRS. For example, the wireless transmission unit 30b may receive the PUSCH DMRS. For example, the wireless transmission unit 30b may receive the UL PTRS. For example, the wireless transmission unit 30b may receive the SRS.

[0063] The upper layer processing unit 34 outputs the downlink data (transport block) to the wireless transceiver unit 30 (or the wireless transmission unit 30a). The upper layer processing unit 34 performs the processing of the MAC (Medium Access Control) layer, the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the RRC layer.

[0064] The medium access control layer processing unit 35 included in the upper layer processing unit 34 performs the processing of the MAC layer.

[0065] The radio resource control layer processing unit 36 included in the upper layer processing unit 34 performs RRC layer processing. The radio resource control layer processing unit 36 manages various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 36 sets RRC parameters based on the RRC message received from the terminal device 1.

[0066] The radio transceiver unit 30 (or the radio transmission unit 30a) performs processes such as modulation and coding. The radio transceiver unit 30 (or the radio transmission unit 30a) generates a physical signal by modulating, coding, and generating a baseband signal (conversion to a time - continuous signal) for downlink data, and transmits it to the terminal device 1. The radio transceiver unit 30 (or the radio transmission unit 30a) may arrange the physical signal on a certain component carrier and transmit it to the terminal device 1.

[0067] The radio transceiver unit 30 (or the radio reception unit 30b) performs processes such as demodulation and decoding. The radio transceiver unit 30 (or the radio reception unit 30b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 34. The radio transceiver unit 30 (or the radio reception unit 30b) may perform a channel access procedure prior to the transmission of the physical signal.

[0068] The RF unit 32 converts the signal received via the antenna unit 31 into a baseband signal (down convert) by quadrature demodulation and removes unnecessary frequency components. The RF unit 32 outputs the processed analog signal to the baseband unit.

[0069] The baseband unit 33 converts the analog signal (analog signal) input from the RF unit 32 into a digital signal (digital signal). The baseband unit 33 removes the portion corresponding to the CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT: Fast Fourier Transform) on the signal after removing the CP, and extracts the signal in the frequency domain.

[0070] The baseband unit 33 performs an inverse fast Fourier transform (IFFT) on data to generate an OFDM symbol, adds a CP to the generated OFDM symbol to generate a baseband digital signal, and converts the baseband digital signal into an analog signal. The baseband unit 33 outputs the converted analog signal to the RF unit 32.

[0071] The RF unit 32 uses a low-pass filter to remove extra frequency components from the analog signal input from the baseband unit 33, up-converts the analog signal to a carrier frequency, and transmits it via the antenna unit 31. The RF unit 32 may also have a function of controlling the transmission power. The RF unit 32 is also referred to as a transmission power control unit.

[0072] One or more serving cells (or component carriers, downlink component carriers, uplink component carriers) may be set for the terminal device 1.

[0073] Each of the serving cells set for the terminal device 1 may be any one of a PCell (Primary cell), a PSCell (Primary SCG cell), and an SCell (Secondary cell).

[0074] The PCell is a serving cell included in the MCG (Master Cell Group). The PCell is a cell (the cell in which the procedure is performed) in which the terminal device 1 performs an initial connection establishment procedure or a connection re-establishment procedure.

[0075] The PSCell is the serving cell included in the SCG (Secondary Cell Group). The PSCell is the serving cell in which the terminal device 1 performs random access in the reconfiguration procedure with synchronization.

[0076] The SCell may be included in either the MCG or the SCG.

[0077] The serving cell group (cell group) is a name that includes at least the MCG and the SCG. The serving cell group may include one or more serving cells (or component carriers). The one or more serving cells (or component carriers) included in the serving cell group may be operated by carrier aggregation.

[0078] One or more downlink BWPs may be configured for each serving cell (or downlink component carrier). One or more uplink BWPs may be configured for each serving cell (or uplink component carrier).

[0079] Among the one or more downlink BWPs configured for a serving cell (or downlink component carrier), one downlink BWP may be configured as the active downlink BWP (or one downlink BWP may be activated). Among the one or more uplink BWPs configured for a serving cell (or uplink component carrier), one uplink BWP may be configured as the active uplink BWP (or one uplink BWP may be activated).

[0080] PDSCH, PDCCH, and CSI-RS may be received in the active downlink BWP. The terminal device 1 may receive PDSCH, PDCCH, and CSI-RS in the active downlink BWP. PUCCH and PUSCH may be transmitted in the active uplink BWP. The terminal device 1 may transmit PUCCH and PUSCH in the active uplink BWP. The active downlink BWP and the active uplink BWP are also referred to as the active BWP.

[0081] PDSCH, PDCCH, and CSI-RS may not be received in a downlink BWP other than the active downlink BWP (inactive downlink BWP). The terminal device 1 may not receive PDSCH, PDCCH, and CSI-RS in a downlink BWP other than the active downlink BWP. PUCCH and PUSCH may not be transmitted in an uplink BWP other than the active uplink BWP (inactive uplink BWP). The terminal device 1 may not transmit PUCCH and PUSCH in an uplink BWP other than the active uplink BWP. The inactive downlink BWP and the inactive uplink BWP are also referred to as the inactive BWP.

[0082] Downlink BWP switching is used to deactivate one active downlink BWP and activate any of the inactive downlink BWPs other than the one active downlink BWP. Downlink BWP switching may be controlled by a BWP field included in downlink control information. Downlink BWP switching may be controlled based on upper layer parameters.

[0083] The uplink BWP switch is used to deactivate one active uplink BWP and activate any of the inactive uplink BWPs other than the one active uplink BWP. The uplink BWP switch may be controlled by a BWP field included in the downlink control information. The uplink BWP switch may be controlled based on upper layer parameters.

[0084] Among one or more downlink BWPs configured for a serving cell, two or more downlink BWPs may not be configured as active downlink BWPs. For a serving cell, at a certain time, one downlink BWP may be active.

[0085] Among one or more uplink BWPs configured for a serving cell, two or more uplink BWPs may not be configured as active uplink BWPs. For a serving cell, at a certain time, one uplink BWP may be active.

[0086] FIG. 6 is a schematic block diagram showing a configuration example of the terminal device 1 according to an aspect of the present embodiment. As shown in FIG. 6, the terminal device 1 includes at least one or all of a wireless transmission / reception unit (physical layer processing unit) 10 and an upper layer processing unit 14. The wireless transmission / reception unit 10 includes at least a part or all of an antenna unit 11, an RF unit 12, and a baseband unit 13. The upper layer processing unit 14 includes at least a part or all of a medium access control layer processing unit 15 and a radio resource control layer processing unit 16.

[0087] The wireless transceiver unit 10 includes at least part or all of the wireless transmission unit 10a and the wireless reception unit 10b. Here, the device configurations of the baseband unit 13 included in the wireless transmission unit 10a and the baseband unit 13 included in the wireless reception unit 10b may be the same or different. Also, the device configurations of the RF unit 12 included in the wireless transmission unit 10a and the RF unit 12 included in the wireless reception unit 10b may be the same or different. Further, the device configurations of the antenna unit 11 included in the wireless transmission unit 10a and the antenna unit 11 included in the wireless reception unit 10b may be the same or different.

[0088] For example, the wireless transmission unit 10a may generate and transmit a baseband signal of the PRACH. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of the PUCCH. The wireless transmission unit 10a may generate and transmit a baseband signal of the PUSCH. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of the PUCCH DMRS. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of the PUSCH DMRS. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of the UL PTRS. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of the SRS.

[0089] For example, the wireless reception unit 10b may receive and demodulate the PDSCH. For example, the wireless reception unit 10b may receive and demodulate the PDCCH. For example, the wireless reception unit 10b may receive and demodulate the PBCH. For example, the wireless reception unit 10b may receive a synchronization signal. For example, the wireless reception unit 10b may receive the PDSCH DMRS. For example, the wireless reception unit 10b may receive the PDCCH DMRS. For example, the wireless reception unit 10b may receive the CSI-RS. For example, the wireless reception unit 10b may receive the DL PTRS.

[0090] The upper layer processing unit 14 outputs uplink data (transport block) to the wireless transceiver unit 10 (or the wireless transmission unit 10a). The upper layer processing unit 14 performs processing of the MAC layer, packet data integration protocol layer, radio link control layer, and RRC layer.

[0091] The media access control layer processing unit 15 included in the upper layer processing unit 14 performs MAC layer processing.

[0092] The radio resource control layer processing unit 16 included in the upper layer processing unit 14 performs RRC layer processing. The radio resource control layer processing unit 16 manages various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 16 sets RRC parameters based on the RRC message received from the base station device 3.

[0093] The wireless transceiver unit 10 (or the wireless transmission unit 10a) performs processing such as modulation and coding. The wireless transceiver unit 10 (or the wireless transmission unit 10a) generates a physical signal by modulating, coding, and generating a baseband signal (converting to a time - continuous signal) the uplink data, and transmits it to the base station device 3. The wireless transceiver unit 10 (or the wireless transmission unit 10a) may arrange the physical signal in a certain BWP (active uplink BWP) and transmit it to the base station device 3.

[0094] The wireless transceiver unit 10 (or the wireless reception unit 10b) performs processing such as demodulation and decoding. The wireless transceiver unit 10 (or the wireless reception unit 30b) may receive a physical signal in a certain BWP (active downlink BWP) of a certain serving cell. The wireless transceiver unit 10 (or the wireless reception unit 10b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 14. The wireless transceiver unit 10 (wireless reception unit 10b) may perform a channel access procedure prior to the transmission of the physical signal.

[0095] The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by quadrature demodulation (down convert), and removes unnecessary frequency components. The RF unit 12 outputs the processed analog signal to the baseband unit 13.

[0096] The baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal. The baseband unit 13 removes the portion corresponding to the CP (Cyclic Prefix) from the converted digital signal, performs a Fast Fourier Transform (FFT) on the signal with the CP removed, and extracts the signal in the frequency domain.

[0097] The baseband unit 13 performs an Inverse Fast Fourier Transform (IFFT) on the uplink data to generate an OFDM symbol, adds a CP to the generated OFDM symbol to generate a baseband digital signal, and converts the baseband digital signal into an analog signal. The baseband unit 13 outputs the converted analog signal to the RF unit 12.

[0098] The RF unit 12 removes extra frequency components from the analog signal input from the baseband unit 13 using a low-pass filter, up converts the analog signal to the carrier frequency, and transmits it via the antenna unit 11. Also, the RF unit 12 may have a function of controlling the transmission power. The RF unit 12 is also referred to as a transmission power control unit.

[0099] Hereinafter, the physical signal (signal) will be described.

[0100] The physical signal is a general term for the downlink physical channel, the downlink physical signal, the uplink physical channel, and the uplink physical channel. The physical channel is a general term for the downlink physical channel and the uplink physical channel. The physical signal is a general term for the downlink physical signal and the uplink physical signal.

[0101] The uplink physical channel may correspond to a set of resource elements that carry information generated in the upper layer. The uplink physical channel may be a physical channel used in the uplink component carrier. The uplink physical channel may be transmitted by the terminal device 1. The uplink physical channel may be received by the base station device 3. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical channels may be used. · PUCCH (Physical Uplink Control CHannel) · PUSCH (Physical Uplink Shared CHannel) · PRACH (Physical Random Access CHannel)

[0102] The PUCCH may be used to transmit uplink control information (UCI: Uplink Control Information). The PUCCH may be transmitted to deliver (deliver, transmission, convey) uplink control information. The uplink control information may be mapped to the PUCCH. The terminal device 1 may transmit the PUCCH on which the uplink control information is mapped. The base station device 3 may receive the PUCCH on which the uplink control information is mapped.

[0103] The uplink control information (uplink control information bits, uplink control information sequence, uplink control information type) includes at least some or all of channel state information (CSI: Channel State Information), scheduling request (SR: Scheduling Request), and HARQ-ACK (Hybrid Automatic Repeat request ACKnowledgement) information.

[0104] Channel state information is also referred to as channel state information bits or a channel state information sequence. A scheduling request is also referred to as scheduling request bits or a scheduling request sequence. HARQ-ACK information is also referred to as HARQ-ACK bits or a HARQ-ACK sequence.

[0105] HARQ-ACK information may at least include HARQ-ACK corresponding to a transport block (or TB: Transport block, MAC PDU: Medium Access Control Protocol Data Unit, DL-SCH: Downlink-Shared Channel, UL-SCH: Uplink-Shared Channel, PDSCH: Physical Downlink Shared Channel, PUSCH: Physical Uplink Shared CHannel). HARQ-ACK may indicate an ACK (acknowledgement) or NACK (negative-acknowledgement) corresponding to a transport block. ACK may indicate that the decoding of the transport block has been successfully completed. NACK may indicate that the decoding of the transport block has not been successfully completed. HARQ-ACK information may include a HARQ-ACK codebook including one or more HARQ-ACK bits.

[0106] The correspondence between HARQ-ACK information and a transport block may mean the correspondence between the HARQ-ACK information and the PDSCH used for transmitting the transport block.

[0107] HARQ-ACK may indicate an ACK or NACK corresponding to one CBG (Code Block Group) included in a transport block.

[0108] A scheduling request may be used at least to request resources for a PUSCH (or UL-SCH) for an initial transmission. The scheduling request bit may be used to indicate either a positive SR or a negative SR. The fact that the scheduling request bit indicates a positive SR is also referred to as "a positive SR is transmitted". A positive SR may indicate that the terminal device 1 requests resources for a PUSCH (or UL-SCH) for an initial transmission. A positive SR may indicate that a scheduling request is triggered by a higher layer. A positive SR may be transmitted when the higher layer instructs to transmit a scheduling request. The fact that the scheduling request bit indicates a negative SR is also referred to as "a negative SR is transmitted". A negative SR may indicate that the terminal device 1 does not request resources for a PUSCH (or UL-SCH) for an initial transmission. A negative SR may indicate that a scheduling request is not triggered by a higher layer. A negative SR may be transmitted when the higher layer does not instruct to transmit a scheduling request.

[0109] Channel state information may at least include some or all of a channel quality indicator (CQI), a precoder matrix indicator (PMI), and a rank indicator (RI). CQI is an indicator related to the quality of a propagation path (e.g., propagation strength) or the quality of a physical channel, PMI is an indicator related to a precoder, and RI is an indicator related to a transmission rank (or the number of transmission layers).

[0110] The channel state information may be given based at least on receiving at least a physical signal (e.g., CSI-RS) used for channel measurement. The channel state information may be selected by the terminal device 1 based at least on receiving at least a physical signal used for channel measurement. The channel measurement may include interference measurement.

[0111] The PUCCH may correspond to a PUCCH format. The PUCCH may be a set of resource elements used to transmit a PUCCH format. The PUCCH may include a PUCCH format.

[0112] The PUSCH may be used to transmit a transport block and / or uplink control information. The PUSCH may be used to transmit a transport block corresponding to the UL-SCH and / or uplink control information. The PUSCH may be used to transmit a transport block and / or uplink control information. The PUSCH may be used to transmit a transport block corresponding to the UL-SCH and / or uplink control information. The transport block may be arranged on the PUSCH. The transport block corresponding to the UL-SCH may be arranged on the PUSCH. The uplink control information may be arranged on the PUSCH. The terminal device 1 may transmit a PUSCH on which a transport block and / or uplink control information is arranged. The base station device 3 may receive a PUSCH on which a transport block and / or uplink control information is arranged.

[0113] The PRACH may be used to transmit a random access preamble. The PRACH may be used to transmit a random access preamble. The sequence x u,v (n) of the PRACH is such that x u,v (n) = x u (mod(n + C v , L RA)) is defined by x u may be a ZC (Zadoff Chu) sequence. x u is x u = exp(-jπui(i + 1) / L RA ) is defined by. j is the imaginary unit. Also, π is the ratio of a circle's circumference to its diameter. C v corresponds to the cyclic shift of the PRACH sequence. L RA corresponds to the length of the PRACH sequence. L RA is 839, or 139. i is an integer in the range from 0 to L RA - 1. u is the sequence index for the PRACH sequence. The terminal device 1 may transmit a PRACH. The base station device 3 may receive a PRACH.

[0114] For a certain PRACH opportunity, 64 random access preambles are defined. The random access preamble is specified (determined, given) based at least on the cyclic shift C v of the PRACH sequence and the sequence index u for the PRACH sequence.

[0115] The uplink physical signal may correspond to a set of resource elements. The uplink physical signal may not carry information generated in the upper layer. The uplink physical signal may be a physical signal used in the uplink component carrier. The terminal device 1 may transmit an uplink physical signal. The base station device 3 may receive an uplink physical signal. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical signals may be used. · UL DMRS (UpLink Demodulation Reference Signal) · SRS (Sounding Reference Signal) · UL PTRS (UpLink Phase Tracking Reference Signal)

[0116] UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.

[0117] The set of antenna ports of DMRS for PUSCH (DMRS related to PUSCH, DMRS included in PUSCH, DMRS corresponding to PUSCH) may be given based on the set of antenna ports for the PUSCH. That is, the set of antenna ports of DMRS for PUSCH may be the same as the set of antenna ports of the PUSCH.

[0118] The transmission of PUSCH and the transmission of DMRS for the PUSCH may be indicated (or scheduled) by one DCI format. PUSCH and DMRS for the PUSCH may be collectively referred to as PUSCH. Transmitting PUSCH may be transmitting PUSCH and DMRS for the PUSCH.

[0119] PUSCH may be estimated from DMRS for the PUSCH. That is, the propagation path of PUSCH may be estimated from DMRS for the PUSCH.

[0120] The set of antenna ports of DMRS for PUCCH (DMRS related to PUCCH, DMRS included in PUCCH, DMRS corresponding to PUCCH) may be the same as the set of antenna ports of PUCCH.

[0121] The transmission of the PUCCH and the transmission of the DMRS for the PUCCH may be indicated (or triggered) by one DCI format. The mapping to the resource elements of the PUCCH and / or the mapping to the resource elements of the DMRS for the PUCCH may be given by one PUCCH format. The PUCCH and the DMRS for the PUCCH may be collectively referred to as the PUCCH. Transmitting the PUCCH may be transmitting the PUCCH and the DMRS for the PUCCH.

[0122] The PUCCH may be estimated from the DMRS for the PUCCH. That is, the propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.

[0123] The downlink physical channel may correspond to a set of resource elements that carry information generated in the upper layer. The downlink physical channel may be a physical channel used in the downlink component carrier. The base station device 3 may transmit the downlink physical channel. The terminal device 1 may receive the downlink physical channel. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following downlink physical channels may be used. ·PBCH (Physical Broadcast Channel) ·PDCCH (Physical Downlink Control Channel) ·PDSCH (Physical Downlink Shared Channel)

[0124] The PBCH may be used to transmit the MIB (MIB: Master Information Block) and / or physical layer control information. The PBCH may be transmitted to deliver (deliver, transmission, convey) the MIB and / or physical layer control information. The BCH may be mapped to the PBCH. The terminal device 1 may receive the PBCH on which the MIB and / or physical layer control information is mapped. The base station device 3 may transmit the PBCH on which the MIB and / or physical layer control information is mapped. The physical layer control information is also referred to as the PBCH payload and the PBCH payload related to timing. The MIB may include one or more upper layer parameters.

[0125] The physical layer control information includes 8 bits. The physical layer control information may at least include some or all of the following 0A to 0D. 0A) Radio frame bit 0B) Half radio frame (half system frame, half frame) bit 0C) SS / PBCH block index bit 0D) Subcarrier offset bit

[0126] The radio frame bit is used to indicate the radio frame in which the PBCH is transmitted (the radio frame including the slot in which the PBCH is transmitted). The radio frame bit includes 4 bits. The radio frame bit may be constituted by 4 bits out of 10-bit radio frame indicators. For example, the radio frame indicator may be used at least to identify radio frames from index 0 to index 1023.

[0127] The half radio frame bit is used to indicate whether the PBCH is transmitted in the first half of five subframes or the second half of five subframes of the radio frame in which the PBCH is transmitted. Here, the half radio frame may be composed of five subframes. Also, the half radio frame may be composed of the first half of five subframes among the ten subframes included in the radio frame. Also, the half radio frame may be composed of the second half of five subframes among the ten subframes included in the radio frame.

[0128] The SS / PBCH block index bit is used to indicate the SS / PBCH block index. The SS / PBCH block index bit includes 3 bits. The SS / PBCH block index bit may be composed of 3 bits among the 6-bit SS / PBCH block index indicator. The SS / PBCH block index indicator may be used at least to identify the SS / PBCH block from index 0 to index 63.

[0129] The subcarrier offset bit is used to indicate the subcarrier offset. The subcarrier offset may be used to indicate the difference between the first subcarrier to which the PBCH is mapped and the first subcarrier to which the control resource set of index 0 is mapped.

[0130] The PDCCH may be used to transmit downlink control information (DCI: Downlink Control Information). The PDCCH may be transmitted to deliver (deliver, transmission, convey) the downlink control information. The downlink control information may be mapped to the PDCCH. The terminal device 1 may receive the PDCCH in which the downlink control information is mapped. The base station device 3 may transmit the PDCCH in which the downlink control information is mapped.

[0131] The downlink control information may correspond to a DCI format. The downlink control information may be included in the DCI format. The downlink control information may be arranged in each field of the DCI format.

[0132] DCI format 0_0, DCI format 0_1, DCI format 1_0, and DCI format 1_1 are DCI formats that each include a different set of fields. The uplink DCI format is a general term for DCI format 0_0 and DCI format 0_1. The downlink DCI format is a general term for DCI format 1_0 and DCI format 1_1.

[0133] DCI format 0_0 is used at least for the scheduling of the PUSCH of a certain cell (or arranged in a certain cell). DCI format 0_0 is configured to include at least a part or all of the fields from 1A to 1E. 1A) DCI format specific field (Identifier field for DCI formats) 1B) Frequency domain resource assignment field 1C) Time domain resource assignment field 1D) Frequency hopping flag field 1E) MCS field (MCS field: Modulation and Coding Scheme field)

[0134] The DCI format identification field may indicate whether the DCI format including the DCI format identification field is an uplink DCI format or a downlink DCI format. The DCI format identification field included in DCI format 0_0 may indicate 0 (or may indicate that DCI format 0_0 is an uplink DCI format).

[0135] The frequency domain resource allocation field included in DCI format 0_0 may be used at least to indicate the allocation of frequency resources for the PUSCH.

[0136] The time domain resource allocation field included in DCI format 0_0 may be used at least to indicate the allocation of time resources for the PUSCH.

[0137] The frequency hopping flag field may be used at least to indicate whether frequency hopping is applied to the PUSCH.

[0138] The MCS field included in DCI format 0_0 may be used at least to indicate the modulation scheme for the PUSCH and / or part or all of the target coding rate. The target coding rate may be the target coding rate for the transport block of the PUSCH. The size of the transport block (TBS) of the PUSCH may be given based at least on the target coding rate and part or all of the modulation scheme for the PUSCH.

[0139] DCI format 0_0 may not include a field used for CSI request (CSI request). That is, CSI may not be requested by DCI format 0_0.

[0140] DCI format 0_0 may not include a carrier indicator field. That is, the uplink component carrier on which the PUSCH scheduled by DCI format 0_0 is located may be the same as the uplink component carrier on which the PDCCH containing the DCI format 0_0 is located.

[0141] DCI format 0_0 may not include a BWP field. That is, the uplink BWP on which the PUSCH scheduled by DCI format 0_0 is located may be the same as the uplink BWP on which the PDCCH containing the DCI format 0_0 is located.

[0142] DCI format 0_1 is at least used for scheduling the PUSCH (located in a certain cell) of a certain cell. DCI format 0_1 is at least composed of a part or all of the fields from 2A to 2H. 2A) DCI format specific field 2B) Frequency domain resource allocation field 2C) Uplink time domain resource allocation field 2D) Frequency hopping flag field 2E) MCS field 2F) CSI request field 2G) BWP field 2H) Carrier indicator field

[0143] The DCI format specific field included in DCI format 0_1 may indicate 0 (or may indicate that DCI format 0_1 is an uplink DCI format).

[0144] The frequency domain resource allocation field included in DCI format 0_1 may be used at least to indicate the allocation of frequency resources for PUSCH.

[0145] The time domain resource allocation field included in DCI format 0_1 may be used at least to indicate the allocation of time resources for PUSCH.

[0146] The MCS field included in DCI format 0_1 may be used at least to indicate the modulation scheme for PUSCH and / or part or all of the target coding rate.

[0147] If the DCI format 0_1 includes a BWP field, the BWP field may be used to indicate the uplink BWP where the PUSCH is located. If the DCI format 0_1 does not include a BWP field, the uplink BWP where the PUSCH is located may be the same as the uplink BWP where the PDCCH including the DCI format 0_1 used for the scheduling of the PUSCH is located. When the number of uplink BWPs set for the terminal device 1 in a certain uplink component carrier is 2 or more, the number of bits of the BWP field included in the DCI format 0_1 used for the scheduling of the PUSCH located in the certain uplink component carrier may be 1 bit or more. When the number of uplink BWPs set for the terminal device 1 in a certain uplink component carrier is 1, the number of bits of the BWP field included in the DCI format 0_1 used for the scheduling of the PUSCH located in the certain uplink component carrier may be 0 bits (or the DCI format 0_1 used for the scheduling of the PUSCH located in the certain uplink component carrier may not include a BWP field).

[0148] The CSI request field is used at least to indicate the reporting of CSI.

[0149] When the carrier indicator field is included in DCI format 0_1, the carrier indicator field may be used to indicate the uplink component carrier on which the PUSCH is scheduled. When the carrier indicator field is not included in DCI format 0_1, the uplink component carrier on which the PUSCH is scheduled may be the same as the uplink component carrier on which the PDCCH including the DCI format 0_1 used for the scheduling of the PUSCH is scheduled. When the number of uplink component carriers configured for the terminal device 1 in a serving cell group is two or more (when carrier aggregation for the uplink is applied in a serving cell group), the number of bits of the carrier indicator field included in the DCI format 0_1 used for the scheduling of the PUSCH arranged in the serving cell group may be one bit or more (for example, 3 bits). When the number of uplink component carriers configured for the terminal device 1 in a serving cell group is one (when carrier aggregation for the uplink is not applied in a serving cell group), the number of bits of the carrier indicator field included in the DCI format 0_1 used for the scheduling of the PUSCH arranged in the serving cell group may be 0 bits (or the DCI format 0_1 used for the scheduling of the PUSCH arranged in the serving cell group may not include the carrier indicator field).

[0150] DCI format 1_0 is at least used for the scheduling of the PDSCH (arranged in a certain cell) of a certain cell. DCI format 1_0 is at least composed of including part or all of 3A to 3F. 3A) DCI format specific field 3B) Frequency domain resource allocation field 3C) Time domain resource allocation field 3D) MCS field 3E) PDSCH_HARQ feedback timing indicator field (PDSCH to HARQ feedback timing indicator field) 3F) PUCCH resource indicator field (PUCCH resource indicator field)

[0151] The DCI format specific field included in DCI format 1_0 may indicate 1 (or may indicate that DCI format 1_0 is a downlink DCI format).

[0152] The frequency domain resource allocation field included in DCI format 1_0 may be used at least to indicate the allocation of frequency resources for the PDSCH.

[0153] The time domain resource allocation field included in DCI format 1_0 may be used at least to indicate the allocation of time resources for the PDSCH.

[0154] The MCS field included in DCI format 1_0 may be used at least to indicate the modulation scheme for the PDSCH and / or part or all of the target coding rate. The target coding rate may be the target coding rate for the transport block of the PDSCH. The size of the transport block (TBS) of the PDSCH may be given based at least on the target coding rate and part or all of the modulation scheme for the PDSCH.

[0155] The PDSCH_HARQ feedback timing indicator field may be used at least to indicate the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH.

[0156] The PUCCH resource indication field may be a field indicating the index of any one of one or more PUCCH resources included in a PUCCH resource set. The PUCCH resource set may include one or more PUCCH resources.

[0157] DCI format 1_0 may not include a carrier indicator field. That is, the downlink component carrier on which the PDSCH scheduled by DCI format 1_0 is located may be the same as the downlink component carrier on which the PDCCH including this DCI format 1_0 is located.

[0158] DCI format 1_0 may not include a BWP field. That is, the downlink BWP on which the PDSCH scheduled by DCI format 1_0 is located may be the same as the downlink BWP on which the PDCCH including this DCI format 1_0 is located.

[0159] DCI format 1_1 is at least used for scheduling the PDSCH of a certain cell (or located in a certain cell). DCI format 1_1 is at least composed of including some or all of 4A to 4I. 4A) DCI format specific field 4B) Frequency domain resource allocation field 4C) Time domain resource allocation field 4E) MCS field 4F) PDSCH_HARQ feedback timing indication field 4G) PUCCH resource indication field 4H) BWP field 4I) Carrier indicator field

[0160] The DCI format specific field included in DCI format 1_1 may indicate 1 (or may indicate that DCI format 1_1 is a downlink DCI format).

[0161] The frequency domain resource allocation field included in DCI format 1_1 may be used at least to indicate the allocation of frequency resources for the PDSCH.

[0162] The time domain resource allocation field included in DCI format 1_1 may be used at least to indicate the allocation of time resources for the PDSCH.

[0163] The MCS field included in DCI format 1_1 may be used at least to indicate the modulation scheme for the PDSCH and / or part or all of the target coding rate.

[0164] When the DCI format 1_1 includes a PDSCH_HARQ feedback timing indication field, the PDSCH_HARQ feedback timing indication field may be used at least to indicate the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH. When the DCI format 1_1 does not include a PDSCH_HARQ feedback timing indication field, the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH may be specified by a higher layer parameter.

[0165] The PUCCH resource indication field may be a field indicating the index of any one of one or more PUCCH resources included in the PUCCH resource set.

[0166] When the BWP field is included in DCI format 1_1, the BWP field may be used to indicate the downlink BWP where the PDSCH is configured. When the BWP field is not included in DCI format 1_1, the downlink BWP where the PDSCH is configured may be the same as the downlink BWP where the PDCCH including the DCI format 1_1 used for scheduling the PDSCH is configured. When the number of downlink BWPs configured for the terminal device 1 in a certain downlink component carrier is 2 or more, the number of bits of the BWP field included in the DCI format 1_1 used for scheduling the PDSCH configured in the certain downlink component carrier may be 1 bit or more. When the number of downlink BWPs configured for the terminal device 1 in a certain downlink component carrier is 1, the number of bits of the BWP field included in the DCI format 1_1 used for scheduling the PDSCH configured in the certain downlink component carrier may be 0 bit (or the DCI format 1_1 used for scheduling the PDSCH configured in the certain downlink component carrier may not include the BWP field).

[0167] When the DCI format 1_1 includes a carrier indicator field, the carrier indicator field may be used to indicate a downlink component carrier on which the PDSCH is configured. When the DCI format 1_1 does not include a carrier indicator field, the downlink component carrier on which the PDSCH is configured may be the same as the downlink component carrier on which the PDCCH including the DCI format 1_1 used for scheduling the PDSCH is configured. When the number of downlink component carriers configured for the terminal device 1 in a serving cell group is two or more (when carrier aggregation for the downlink is operated in a serving cell group), the number of bits of the carrier indicator field included in the DCI format 1_1 used for scheduling the PDSCH configured in the serving cell group may be one bit or more (for example, three bits). When the number of downlink component carriers configured for the terminal device 1 in a serving cell group is one (when carrier aggregation for the downlink is not operated in a serving cell group), the number of bits of the carrier indicator field included in the DCI format 1_1 used for scheduling the PDSCH configured in the serving cell group may be zero bits (or the DCI format 1_1 used for scheduling the PDSCH configured in the serving cell group may not include a carrier indicator field).

[0168] The PDSCH may be used to transmit a transport block. The PDSCH may be used to transmit a transport block corresponding to the DL-SCH. The PDSCH may be used to convey a transport block. The PDSCH may be used to convey a transport block corresponding to the DL-SCH. The transport block may be arranged on the PDSCH. The transport block corresponding to the DL-SCH may be arranged on the PDSCH. The base station device 3 may transmit the PDSCH. The terminal device 1 may receive the PDSCH.

[0169] The downlink physical signal may correspond to a set of resource elements. The downlink physical signal may not carry information generated in the upper layer. The downlink physical signal may be a physical signal used in a downlink component carrier. The downlink physical signal may be transmitted by the base station device 3. The downlink physical signal may be transmitted by the terminal device 1. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following downlink physical signals may be used. · Synchronization signal (SS: Synchronization signal) · DL DMRS (DownLink DeModulation Reference Signal) · CSI-RS (Channel State Information-Reference Signal) · DL PTRS (DownLink Phase Tracking Reference Signal)

[0170] The synchronization signal may be used at least for the terminal device 1 to synchronize in the downlink frequency domain and / or time domain. The synchronization signal is a general term for the PSS (Primary Synchronization Signal) and the SSS (Secondary Synchronization Signal).

[0171] FIG. 7 is a diagram showing a configuration example of an SS / PBCH block according to an aspect of the present embodiment. In FIG. 7, the horizontal axis is the time axis (OFDM symbol index l sym ), and the vertical axis indicates the frequency domain. Also, the hatched blocks indicate a set of resource elements for the PSS. Also, the grid-line blocks indicate a set of resource elements for the SSS. Also, the horizontal-line blocks indicate a set of resource elements for the PBCH and for the DMRS related to the PBCH, included in the PBCH, corresponding to the PBCH (DMRS for the PBCH).

[0172] As shown in FIG. 7, the SS / PBCH block includes a PSS, an SSS, and a PBCH. Also, the SS / PBCH block includes four consecutive OFDM symbols. The SS / PBCH block includes 240 subcarriers. The PSS is arranged in the 57th to 183rd subcarriers in the first OFDM symbol. The SSS is arranged in the 57th to 183rd subcarriers in the third OFDM symbol. The 1st to 56th subcarriers in the first OFDM symbol may be set to zero. The 184th to 240th subcarriers in the first OFDM symbol may be set to zero. The 49th to 56th subcarriers in the third OFDM symbol may be set to zero. The 184th to 192nd subcarriers in the third OFDM symbol may be set to zero. The PBCH is arranged in the 1st to 240th subcarriers in the second OFDM symbol and in the subcarriers where the DMRS for the PBCH is not arranged. The PBCH is arranged in the 1st to 48th subcarriers in the third OFDM symbol and in the subcarriers where the DMRS for the PBCH is not arranged. The PBCH is arranged in the 193rd to 240th subcarriers in the third OFDM symbol and in the subcarriers where the DMRS for the PBCH is not arranged. The PBCH is arranged in the 1st to 240th subcarriers in the fourth OFDM symbol and in the subcarriers where the DMRS for the PBCH is not arranged.

[0173] The antenna ports of the PSS, SSS, PBCH, and the DMRS for the PBCH may be the same.

[0174] The PBCH for which the symbol of the PBCH at a certain antenna port is transmitted may be estimated by the DMRS for the PBCH arranged in the slot to which the PBCH is mapped and included in the SS / PBCH block containing the PBCH.

[0175] DL DMRS is a general term for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.

[0176] The set of antenna ports of DMRS for PDSCH (DMRS related to PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) may be given based on the set of antenna ports for the PDSCH. That is, the set of antenna ports of DMRS for PDSCH may be the same as the set of antenna ports for the PDSCH.

[0177] The transmission of PDSCH and the transmission of DMRS for the PDSCH may be indicated (or scheduled) by one DCI format. PDSCH and DMRS for the PDSCH may be collectively referred to as PDSCH. Transmitting PDSCH may mean transmitting PDSCH and DMRS for the PDSCH.

[0178] PDSCH may be estimated from DMRS for the PDSCH. That is, the propagation path of PDSCH may be estimated from DMRS for the PDSCH. If the set of resource elements through which the symbols of a certain PDSCH are transmitted and the set of resource elements through which the symbols of DMRS for the certain PDSCH are transmitted are included in the same precoding resource group (PRG), the PDSCH through which the symbols of the certain PDSCH are transmitted at a certain antenna port may be estimated by DMRS for the PDSCH.

[0179] The antenna port of DMRS for PDCCH (DMRS related to PDCCH, DMRS included in PDCCH, DMRS corresponding to PDCCH) may be the same as the antenna port for PDCCH.

[0180] The PDCCH may be estimated from the DMRS for the PDCCH. That is, the propagation path of the PDCCH may be estimated from the DMRS for the PDCCH. If the same precoder is applied (assumed to be applied, assumed to apply) in the set of resource elements in which the symbols of a certain PDCCH are transmitted and the set of resource elements in which the symbols of the DMRS for the certain PDCCH are transmitted, the PDCCH in which the symbols of the PDCCH at a certain antenna port are transmitted may be estimated by the DMRS for the PDCCH.

[0181] BCH (Broadcast CHannel), UL-SCH (Uplink-Shared CHannel), and DL-SCH (Downlink-Shared CHannel) are transport channels. The channels used in the MAC layer are called transport channels. The unit of the transport channel used in the MAC layer is also called a transport block (TB) or a MAC PDU (Protocol Data Unit). HARQ (Hybrid Automatic Repeat reQuest) control is performed for each transport block in the MAC layer. A transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, a transport block is mapped to codewords, and modulation processing is performed for each codeword.

[0182] For each serving cell, one UL-SCH and one DL-SCH may be provided. The BCH may be provided to the PCell. The BCH may not be provided to the PSCell or SCell.

[0183] BCCH (Broadcast Control Channel), CCCH (Common Control Channel), and DCCH (Dedicated Control Channel) are logical channels. For example, BCCH is a channel of the RRC layer used to transmit the MIB or system information. Also, CCCH (Common Control Channel) may be used to transmit common RRC messages in a plurality of terminal devices 1. Here, CCCH may be used, for example, for a terminal device 1 that is not RRC-connected. Also, DCCH (Dedicated Control Channel) may be used at least to transmit an RRC message dedicated to the terminal device 1. Here, DCCH may be used, for example, for a terminal device 1 that is RRC-connected.

[0184] An RRC message includes one or more RRC parameters (information elements). For example, an RRC message may include the MIB. Also, an RRC message may include system information. Also, an RRC message may include a message corresponding to CCCH. Also, an RRC message may include a message corresponding to DCCH. An RRC message including a message corresponding to DCCH is also referred to as an individual RRC message.

[0185] BCCH in the logical channel may be mapped to BCH or DL-SCH in the transport channel. CCCH in the logical channel may be mapped to DL-SCH or UL-SCH in the transport channel. DCCH in the logical channel may be mapped to DL-SCH or UL-SCH in the transport channel.

[0186] In the transport channel, UL-SCH may be mapped to PUSCH in the physical channel. In the transport channel, DL-SCH may be mapped to PDSCH in the physical channel. In the transport channel, BCH may be mapped to PBCH in the physical channel.

[0187] Higher layer parameters (parameters of the higher layer) are parameters included in the RRC message or MAC CE (Medium Access Control Control Element). That is, the higher layer parameters are a general term for the MIB, system information, messages corresponding to CCCH, messages corresponding to DCCH, and information included in MAC CE.

[0188] The procedures performed by the terminal device 1 include at least a part or all of the following 5A to 5C. 5A) Cell search 5B) Random access 5C) Data communication

[0189] Cell search is a procedure used by the terminal device 1 to synchronize with a certain cell regarding the time domain and frequency domain and detect the physical cell identity. That is, the terminal device 1 may perform synchronization with a certain cell in the time domain and frequency domain and detect the physical cell identity by cell search.

[0190] The sequence of PSS is given based at least on the physical cell ID. The sequence of SSS is given based at least on the physical cell ID.

[0191] The SS / PBCH block candidate indicates a resource where the transmission of the SS / PBCH block is permitted (possible, reserved, set, defined, likely).

[0192] A set of SS / PBCH block candidates in a half radio frame is also referred to as an SS burst set. The SS burst set is also referred to as a transmission window, an SS transmission window, or a Discovery Refeence Signal transmission window. The SS burst set is a general term that includes at least a first SS burst set and a second SS burst set.

[0193] The base station device 3 transmits one or more indexes of SS / PBCH blocks at a predetermined period. The terminal device 1 may detect at least one of the SS / PBCH blocks of the one or more indexes of SS / PBCH blocks and attempt to decode the PBCH included in the SS / PBCH block.

[0194] Random access is a procedure that includes at least a part or all of Message 1, Message 2, Message 3, and Message 4.

[0195] Message 1 is a procedure in which the terminal device 1 transmits a PRACH. The terminal device 1 transmits a PRACH in one PRACH opportunity selected from one or more PRACH opportunities based at least on the index of the SS / PBCH block candidate detected based on cell search. Each of the PRACH opportunities is defined based at least on resources in the time domain and the frequency domain.

[0196] The terminal device 1 transmits one random access preamble selected from the PRACH opportunities corresponding to the index of the SS / PBCH block candidate in which the SS / PBCH block is detected.

[0197] Message 2 is a procedure for attempting to detect DCI format 1_0 with a CRC (Cyclic Redundancy Check) scrambled by a RA-RNTI (Random Access - Radio Network Temporary Identifier) by the terminal device 1. The terminal device 1 attempts to detect a PDCCH including the DCI format in a control resource set given based on an MIB included in a PBCH included in an SS / PBCH block detected based on cell search, and in a resource indicated based on a setting of a search area set.

[0198] Message 3 is a procedure for transmitting a PUSCH scheduled by a random access response grant included in the DCI format 1_0 detected by the Message 2 procedure. Here, the random access response grant is indicated by a MAC CE included in a PDSCH scheduled by the DCI format 1_0.

[0199] The PUSCH scheduled based on the random access response grant is either a Message 3 PUSCH or a PUSCH. The Message 3 PUSCH includes a contention resolution identifier MAC CE. The contention resolution identifier MAC CE includes a contention resolution identifier.

[0200] The retransmission of the Message 3 PUSCH is scheduled by a DCI format 0_0 with a CRC scrambled based on a TC-RNTI (Temporary Cell - Radio Network Temporary Identifier).

[0201] Message 4 is a procedure for attempting to detect DCI format 1_0 with a CRC scrambled based on either a C-RNTI (Cell - Radio Network Temporary Identifier) or a TC-RNTI. The terminal device 1 receives a PDSCH scheduled based on the DCI format 1_0. The PDSCH may include a collision resolution ID.

[0202] Data communication is a general term for downlink communication and uplink communication.

[0203] In data communication, the terminal device 1 attempts to detect a PDCCH (monitor the PDCCH, monitor the PDCCH) in a resource specified based on a control resource set and a search area set.

[0204] The control resource set is a set of resources composed of a predetermined number of resource blocks and a predetermined number of OFDM symbols. In the frequency domain, the control resource set may be composed of consecutive resources (non-interleaved mapping) or may be composed of dispersed resources (interleaver mapping).

[0205] The set of resource blocks constituting the control resource set may be indicated by a higher layer parameter. The number of OFDM symbols constituting the control resource set may be indicated by a higher layer parameter.

[0206] The terminal device 1 attempts to detect the PDCCH in the search area set. Here, attempting to detect the PDCCH in the search area set may mean attempting to detect candidates of the PDCCH in the search area set, or attempting to detect the DCI format in the search area set, or attempting to detect the PDCCH in the control resource set, or attempting to detect candidates of the PDCCH in the control resource set, or attempting to detect the DCI format in the control resource set.

[0207] The search area set is defined as a set of candidates for the PDCCH. The search area set may be a CSS (Common Search Space) set or a USS (UE-specific Search Space) set. The terminal device 1 attempts to detect candidates of the PDCCH in part or all of the Type0 PDCCH common search space set, Type0a PDCCH common search space set, Type1 PDCCH common search space set, Type2 PDCCH common search space set, Type3 PDCCH common search space set, and / or the UE-specific PDCCH search area set.

[0208] The Type0 PDCCH common search space set may be used as the common search space set with index 0. The Type0 PDCCH common search space set may be the common search space set with index 0.

[0209] The CSS set is a general term for the type 0 PDCCH common search space set, type 0a PDCCH common search space set, type 1 PDCCH common search space set, type 2 PDCCH common search space set, and type 3 PDCCH common search space set. The USS set is also referred to as the UE-specific PDCCH search space set.

[0210] A certain search space set is related to (included in, corresponding to) a certain control resource set. The index of the control resource set related to the search space set may be indicated by a higher layer parameter.

[0211] For a certain search space set, part or all of 6A to 6C may be indicated by at least a higher layer parameter. 6A) PDCCH monitoring periodicity 6B) PDCCH monitoring pattern within a slot 6C) PDCCH monitoring offset

[0212] The monitoring occasion of a certain search space set may correspond to the OFDM symbol in which the first OFDM symbol of the control resource set related to the certain search space set is located. The monitoring occasion of a certain search space set may correspond to the resources of the control resource set starting from the first OFDM symbol of the control resource set related to the certain search space set. The monitoring occasion of the search space set is given based on at least part of the PDCCH monitoring periodicity, the PDCCH monitoring pattern within a slot, and the PDCCH monitoring offset.

[0213] FIG. 8 is a diagram showing an example of a monitoring opportunity for a search area set according to one aspect of the present embodiment. In FIG. 8, a search area set 91 and a search area set 92 are set for the primary cell 301, a search area set 93 is set for the secondary cell 302, and a search area set 94 is set for the secondary cell 303.

[0214] In FIG. 8, the block indicated by the grid lines represents the search area set 91, the block indicated by the upward diagonal line represents the search area set 92, the block indicated by the downward diagonal line represents the search area set 93, and the block indicated by the horizontal line represents the search area set 94.

[0215] The monitoring interval of the search area set 91 is set to 1 slot, the monitoring offset of the search area set 91 is set to 0 slots, and the monitoring pattern of the search area set 91 is set to [1,0,0,0,0,0,0,1,0,0,0,0,0,0]. That is, the monitoring opportunities for the search area set 91 correspond to the first OFDM symbol (OFDM symbol #0) and the eighth OFDM symbol (OFDM symbol #7) in each slot.

[0216] The monitoring interval of the search area set 92 is set to 2 slots, the monitoring offset of the search area set 92 is set to 0 slots, and the monitoring pattern of the search area set 92 is set to [1,0,0,0,0,0,0,0,0,0,0,0,0,0]. That is, the monitoring opportunities for the search area set 92 correspond to the first OFDM symbol (OFDM symbol #0) in each even slot.

[0217] The monitoring interval of the search area set 93 is set to 2 slots, the monitoring offset of the search area set 93 is set to 0 slots, and the monitoring pattern of the search area set 93 is set to [0,0,0,0,0,0,0,1,0,0,0,0,0,0]. That is, the monitoring opportunities for the search area set 93 correspond to the eighth OFDM symbol (OFDM symbol #7) in each even slot.

[0218] The monitoring interval of search area set 94 is set to 2 slots, the monitoring offset of search area set 94 is set to 1 slot, and the monitoring pattern of search area set 94 is set to [1,0,0,0,0,0,0,0,0,0,0,0,0,0]. That is, the monitoring opportunity of search area set 94 corresponds to the first OFDM symbol (OFDM symbol #0) in each odd slot.

[0219] The type 0 PDCCH common search area set may be used at least for DCI formats with CRC (Cyclic Redundancy Check) sequences scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).

[0220] The type 0a PDCCH common search area set may be used at least for DCI formats with CRC (Cyclic Redundancy Check) sequences scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).

[0221] The type 1 PDCCH common search area set may be used at least for DCI formats with CRC sequences scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) and / or CRC sequences scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).

[0222] The type 2 PDCCH common search area set may be used for DCI formats with CRC sequences scrambled by P-RNTI (Paging- Radio Network Temporary Identifier).

[0223] The Type 3 PDCCH common search space set may be used for DCI formats with CRC sequences scrambled by a C-RNTI (Cell-Radio Network Temporary Identifier).

[0224] The UE-specific PDCCH search space set may be used at least for DCI formats with CRC sequences scrambled by a C-RNTI.

[0225] In downlink communication, the terminal device 1 detects a downlink DCI format. The detected downlink DCI format is used at least for resource allocation of the PDSCH. The detected downlink DCI format is also referred to as a downlink assignment. The terminal device 1 attempts to receive the PDSCH. Based on the PUCCH resources indicated based on the detected downlink DCI format, the HARQ-ACK corresponding to the PDSCH (the HARQ-ACK corresponding to the transport block included in the PDSCH) is reported to the base station device 3.

[0226] In uplink communication, the terminal device 1 detects an uplink DCI format. The detected DCI format is used at least for resource allocation of the PUSCH. The detected uplink DCI format is also referred to as an uplink grant. The terminal device 1 transmits the PUSCH.

[0227] In the configured grant, the uplink grant for scheduling the PUSCH is set for each transmission period of the PUSCH. When the PUSCH is scheduled by an uplink DCI format, part or all of the information indicated by the uplink DCI format may be indicated by the uplink grant set in the configured grant.

[0228] The time resources of one or more PUSCHs may be determined by the allocation of the time resources of the PUSCH indicated by the uplink grant. That is, one or more PUSCHs may be scheduled by one uplink grant. Hereinafter, "one or more PUSCHs" may be referred to as "PUSCH". In particular, when it is possible to explain the technical content without distinguishing each of the one or more PUSCHs, "one or more PUSCHs" may be referred to as "PUSCH".

[0229] The format of the PUSCH may be given based at least in part on one or more of the transport block placement period, the placement period of the series of modulation symbols, the placement period of the DMRS for the PUSCH, and the coherence period of the PUSCH. When the terminal device 1 transmits the PUSCH, the terminal device 1 may determine the format of the PUSCH based at least in part on one or more of the transport block placement period, the placement period of the series of modulation symbols, the placement period of the DMRS for the PUSCH, and the coherence period of the PUSCH. When the base station device 3 receives the PUSCH transmitted from the terminal device 1, the base station device 3 may determine the format of the PUSCH based at least in part on one or more of the transport block placement period, the placement period of the series of modulation symbols, the placement period of the DMRS for the PUSCH, and the coherence period of the PUSCH.

[0230] For example, in a certain PUSCH format, the time resource of the PUSCH is 8 slots, the placement period of the transport block is 4 slots, the placement period of the modulation symbol series is 2 slots, the placement period of the DMRS for the PUSCH is 2 slots, and the coherence period of the PUSCH may be 4 slots. Here, by setting the coherence period of the PUSCH to be equal to the placement period of the transport block, the channel estimation used for demodulation / decoding of the transport block can be carried out in a batch, so an improvement in transmission characteristics may be expected.

[0231] For example, in a certain PUSCH format, the time resource of the PUSCH is 8 slots, the placement period of the transport block is 8 slots, the placement period of the modulation symbol series is 1 slot, the placement period of the DMRS for the PUSCH is 1 slot, and the coherence period of the PUSCH may be 4 slots. Here, by shortening the placement period of the DMRS with respect to the coherence period of the PUSCH, the number of DMRS resources in the time domain that can be utilized for one-time channel estimation can be increased, so an improvement in transmission characteristics may be expected.

[0232] For example, in a certain PUSCH format, the time resource of the PUSCH is 8 slots, the placement period of the transport block is 8 slots, the placement period of the modulation symbol series is 4 slots, the placement period of the DMRS for the PUSCH is 1 slot, and the coherence period of the PUSCH may be 1 slot. Here, by setting the placement period of the modulation symbol series to be long, the modulation symbols of the coded bits can be arranged more effectively in the time domain, so transmission characteristics may be expected.

[0233] For example, the time resource of the PUSCH indicated by the uplink grant may include a plurality of slots. Here, even when the time resource of the PUSCH indicated by one uplink grant is included in a plurality of slots, the PUSCH may be one or a plurality. For example, when the PUSCH is defined for each slot, the PUSCH may be the same as the number of slots.

[0234] FIG. 9 is a diagram showing an example of the format of the PUSCH according to one aspect of the present embodiment. In FIG. 9, the horizontal axis represents the time axis. Also, in FIG. 9, a plurality of slots (8 slots in FIG. 9) are shown on the time axis. Here, the plurality of slots in FIG. 9 are indexed like slot #0 (slot #0) to slot #7 (slot #7) in ascending order of time. In FIG. 9, the plurality of slots are arranged continuously in the time domain, but the aspect of the present invention is not limited to the case where the plurality of slots are arranged continuously in the time domain. For example, in the aspect of the present invention, the plurality of slots may be composed of slots in which uplink transmission is possible. That is, in the aspect of the present invention, the configuration may be such that the plurality of slots do not include slots in which downlink transmission is possible.

[0235] In an example shown in FIG. 9, one uplink grant may indicate a PUSCH transmitted in eight slots including slot #0 to slot #7. Here, the PUSCH may include one transport block. Here, the arrangement period (TB mapping period) of the transport block of the PUSCH may be 8 slots. Also, the arrangement period (modulation symbol mapping period) of the series of modulation symbols of the PUSCH may be 4 slots. Also, the arrangement period (DMRS mapping period) of the DMRS for the PUSCH may be 2. Also, the coherence period (Channel coference) of the DMRS for the PUSCH may be 2.

[0236] The placement period of a transport block may correspond to the number of slots in which a certain transport block is included. For example, the certain transport block may be placed over a length X0 corresponding to one period of the placement period of the transport block. For example, X0 may be determined based at least on RRC parameters. For example, X0 may be indicated by RRC parameters. For example, X0 may be determined based at least on a signal from a higher layer. For example, X0 may be indicated by a signal from a higher layer. For example, X0 may be indicated by an uplink grant used for scheduling of a PUSCH transmitted including the transport block. For example, X0 may be determined based at least on an uplink grant used for scheduling of a PUSCH transmitted including the transport block. For example, X0 may be indicated by one DCI format. For example, X0 may be determined based at least on one DCI format.

[0237] For example, X0 may indicate the number of slots. For example, X0 may indicate the number of OFDM symbols.

[0238] For example, X0 may be given based at least on the time domain configuration (for example, the time resources of the PUSCH) of a PUSCH scheduled by one uplink grant. For example, X0 may be determined based at least on the time domain configuration of a PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine X0 based at least on the time domain configuration of a PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine X0 based at least on the time domain configuration of a PUSCH scheduled by one uplink grant.

[0239] By controlling X0 based at least on the configuration of the time domain of the PUSCH, a desired data rate may be achieved regardless of the configuration of the time domain of the PUSCH. In dynamic TDD or the like, it is not always possible to always use a predetermined configuration as the configuration of the time domain of the PUSCH, and the control of X0 is suitable.

[0240] For example, when the configuration of the time domain of the PUSCH is the first configuration, X0 may be the first value. Also, when the configuration of the time domain of the PUSCH is a second configuration different from the first configuration, X0 may be a second value different from the first value. For example, when the time resource of the PUSCH is the first number of slots, X0 may be the first value. Also, when the time resource of the PUSCH is a second slot different from the first slot, X0 may be a second value different from the first value.

[0241] For example, the configuration of the time domain of the PUSCH may be the number of slots in which the PUSCH is arranged. For example, the configuration of the time domain of the PUSCH may be the number of OFDM symbols in which the PUSCH is arranged. For example, the configuration of the time domain of the PUSCH may be the configuration of the time domain of the DMRS for the PUSCH.

[0242] FIG. 10 is a diagram showing an example of the arrangement of modulation symbols according to an aspect of the present embodiment. In FIG. 10, the horizontal axis represents the time axis and the vertical axis represents the frequency axis. Also, in FIG. 10, each of the blocks spread in the time-frequency domain represents one resource element. Also, in FIG. 10, a configuration in which x1 slots are arranged is shown.

[0243] A series of modulation symbols resulting from one transport block may be arranged in resource elements included in x1 slots based on the Frequency-first Time-second manner. The Frequency-first Time-second manner may be a method of arranging modulation symbols for a plurality of resource elements arranged in the time-frequency domain based on the following procedure. Step 1) Identify a set of resource elements at the beginning of the time domain and proceed to Step 2 Step 2) Arrange modulation symbols in order from the resource element at the beginning of the frequency domain in the identified set of resource elements Step 3) Identify the next set of resource elements in the time domain compared to the identified set of resource elements and proceed to Step 2)

[0244] For example, Step 1 in FIG. 10 may be to identify a set of resource elements including at least resource element A1, resource element A2, and resource element A3. Also, Step 2 in FIG. 10 may be to arrange modulation symbols in order from resource element A1, through resource element A2, to resource element A3. Also, Step 3 in FIG. 10 may be to identify a set of resource elements including at least resource element A4, resource element A5, and resource element A6. Also, Step 2 after Step 3 in FIG. 10 may be to arrange modulation symbols in order from resource element A4, through resource element A5, to resource element A6.

[0245] For example, a series of modulation symbols resulting from one transport block may be arranged based on the frequency-first time-second method for resource elements included in a length X1 corresponding to one period of the arrangement period of the modulation symbols. For example, X1 may be indicated by RRC parameters. For example, X1 may be determined based at least on RRC parameters. For example, X1 may be determined based at least on a signal of a higher layer. For example, X1 may be indicated by an uplink grant used for scheduling of a PUSCH transmitted including the transport block. For example, X1 may be determined based at least on an uplink grant used for scheduling of a PUSCH transmitted including the transport block. For example, X1 may be indicated by one DCI format. For example, X1 may be determined based at least on one DCI format.

[0246] For example, X1 may indicate the number of slots. For example, X1 may indicate the number of OFDM symbols.

[0247] For example, when the terminal device 1 determines X1 based at least on the first control information, a series of modulation symbols resulting from one transport block may be arranged based on the frequency-first time-second method for resource elements included in a length X1 corresponding to one period of the arrangement period of the series of modulation symbols. For example, the first control information may be determined based at least on RRC parameters, a signal of a higher layer, an uplink grant used for scheduling of a PUSCH transmitted including the transport block, and a part or all of one DCI format.

[0248] Even when the terminal device 1 holds the first control information, the series of modulation symbols resulting from the transport block included in the message 3 PUSCH may be arranged based on the frequency-first time-second method for the resource elements included in one slot. That is, even when the terminal device 1 holds the first control information, X1 may be one slot for the transport block included in the message 3 PUSCH.

[0249] For example, the terminal device 1 holding certain control information may mean that the terminal device 1 is configured based on the certain control information. For example, the terminal device 1 holding certain control information may mean that the terminal device 1 performs processing based on the certain control information.

[0250] For example, the terminal device 1 holding the first control information may mean that the terminal device 1 holds X1. For example, the first control information may be information indicating X1. For example, the first control information may be information other than the information indicating X1 but used to determine X1.

[0251] Even when the terminal device 1 holds the first control information, the series of modulation symbols resulting from the transport block included in the PUSCH scheduled by the random access response grant may be arranged based on the frequency-first time-second method for the resource elements included in one slot. That is, even when the terminal device 1 holds the first control information, X1 may be one slot for the transport block included in the PUSCH scheduled by the random access response grant.

[0252] When the terminal device 1 does not hold the first control information, the series of modulation symbols resulting from the transport block included in the PUSCH may be arranged based on the frequency-first time-second method for the resource elements included in one slot. That is, when the terminal device 1 does not hold the first control information, X1 may be one slot for the transport block included in the PUSCH.

[0253] For example, X1 may be given based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, X1 may be determined based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine X1 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine X1 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant.

[0254] By controlling X1 based at least on the configuration of the time domain of the PUSCH, it may be possible to suitably arrange the modulation symbols of the coded bits based on the configuration of the time domain of the PUSCH.

[0255] For example, when the configuration of the time domain of the PUSCH is the first configuration, X1 may be the first value. Also, when the configuration of the time domain of the PUSCH is a second configuration different from the first configuration, X1 may be a second value different from the first value. For example, when the time resource of the PUSCH is the number of the first slots, X1 may be the first value. Also, when the time resource of the PUSCH is a second slot different from the first slot, X1 may be a second value different from the first value.

[0256] For example, X1 may be given based at least on X0. For example, X1 may be determined based at least on X0. For example, the terminal device 1 may determine X1 based at least on X0. For example, the base station device 3 may determine X1 based at least on X0.

[0257] By controlling X1 based at least on X0, it may be possible to suitably arrange the modulation symbols of the coded bits based on the arrangement period of the transport block.

[0258] For example, when X0 is a first value, X1 may be a second value. Also, when X0 is a third value different from the first value, X1 may be a fourth value different from the second value.

[0259] For example, the series of modulation symbols may be generated by modulating the series of coded bits resulting from one transport block. For example, the modulation method may be QPSK (Quadarature Phase Shift Keying), or 16QAM (Quadarature Amplitude Modulation), 64QAM, 256QAM, (1 / 2)π BPSK (Binary Phase Shift Keying). Here, prior to the generation of the series of modulation symbols, a predetermined scrambling may be performed on the series of coded bits.

[0260] For example, the position of the coded bits included in the modulation symbol at the head of the series of modulation symbols may be given by RV (Redandancy Version). RV is information indicating the position of the coded bit at the head of the series of coded bits used in the generation of the series of modulation symbols. For example, the information indicating RV may be included in the RRC parameter, the signal of the upper layer, the uplink grant used for the scheduling information of the PUSCH transmitted including the transport block, or at least any one of the DCI formats. For example, RV may be given based at least on any one of the RRC parameter, the signal of the upper layer, the uplink grant used for the scheduling information of the PUSCH transmitted including the transport block, or one of the DCI formats.

[0261] For example, one RV may be given for each period of the arrangement period of the series of modulation symbols. For example, for each period of the arrangement period of the series of modulation symbols, the coded bits included in the modulation symbol at the head of the series of modulation symbols may be given. For example, the information indicating each of the one RVs for each period of the arrangement period of the series of modulation symbols may be included in the RRC parameter, the signal of the upper layer, the uplink grant used for the scheduling information of the PUSCH transmitted including the transport block, or at least any one of the DCI formats. For example, one RV for each period of the arrangement period of the series of modulation symbols may be determined based at least on any one of the RRC parameter, the signal of the upper layer, the uplink grant used for the scheduling information of the PUSCH transmitted including the transport block, or one of the DCI formats.

[0262] In an example shown in FIG. 9, one RV may be shown for one period including slots #0 to #3, and one RV may be shown for one period including slots #4 to #7.

[0263] For example, in a PUSCH scheduled by one uplink grant, one RV may be indicated for the first period among the arrangement periods of a series of one or more modulation symbols included in the time domain of the PUSCH. Here, the information indicating the one RV may be included in at least any one of an RRC parameter, a signal of a higher layer, the uplink grant used for the scheduling information of the PUSCH transmitted including a transport block, or one DCI format. Here, except for the first period, the RVs for each of the arrangement periods of the series of one or more modulation symbols included in the time domain of the PUSCH may be given based at least on the one RV.

[0264] The arrangement period of the DMRS is the period to which the pattern of the arrangement of the DMRS in the time domain is applied. For example, when the length of one period of the arrangement period of the DMRS is X2, the pattern of the arrangement of the DMRS in the time domain may be applied every length X2.

[0265] For example, the DMRS placement pattern may be information indicating a set of indexes of OFDM symbols to which DMRS is mapped at length X2. Here, the index of the OFDM symbol may be the index of the OFDM symbol based on a reference point (an OFDM symbol whose index is regarded as 0). For example, the reference point for a certain one period among the DMRS placement periods included in the time domain of the PUSCH may be the first OFDM symbol included in the one period. For example, the reference point for a certain one period among the DMRS placement periods included in the time domain of the PUSCH may be determined by a certain OFDM symbol included in the one period. For example, X2 may be determined based at least on RRC parameters. For example, X2 may be indicated by RRC parameters. For example, X2 may be determined based at least on a signal from a higher layer. For example, X2 may be indicated by a parameter of a higher layer. For example, X2 may be indicated by an uplink grant used for scheduling the PUSCH transmitted including the transport block. For example, X2 may be determined based at least on an uplink grant used for scheduling the PUSCH transmitted including the transport block. For example, X2 may be indicated by one DCI format. For example, X2 may be determined based at least on one DCI format.

[0266] For example, X2 may indicate the number of slots. For example, X2 may indicate the number of OFDM symbols.

[0267] That is, when the terminal device 1 determines X2 based at least on the second control information, the DMRS placement pattern for the PUSCH may be applied for each X2 slot. For example, the second control information may be determined based at least on RRC parameters, a signal from a higher layer, an uplink grant used for scheduling the PUSCH, and a part or all of one DCI format.

[0268] Even when the terminal device 1 holds the second control information, the DMRS placement pattern for the message 3 PUSCH may be applied every 1 slot. That is, even when the terminal device 1 holds the second control information, X2 for the message 3 PUSCH may be 1 slot.

[0269] For example, the fact that the terminal device 1 holds the second control information may mean that the terminal device 1 holds X2. For example, the second control information may be information indicating X2. For example, the second control information may be information other than the information indicating X2, but may be information used to determine the X2.

[0270] Even when the terminal device 1 holds the second control information, the DMRS placement pattern for the PUSCH scheduled by the random access response grant may be applied every 1 slot. That is, even when the terminal device 1 holds the second control information, X2 for the PUSCH scheduled by the random access response grant may be 1 slot.

[0271] When the terminal device 1 does not hold the second control information, the DMRS placement pattern for the PUSCH may be applied every 1 slot. That is, when the terminal device 1 does not hold the second control information, X2 for the PUSCH may be 1 slot.

[0272] For example, X2 may be given based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, X2 may be determined based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine X2 based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine X2 based at least on the time domain configuration of the PUSCH scheduled by one uplink grant.

[0273] By controlling X2 based at least on the time domain configuration of the PUSCH, it may be possible to suitably perform the DMRS arrangement based on the time domain configuration of the PUSCH. Since the density of the DMRS in the time domain is controlled by X2, if the time domain configuration of the PUSCH is different, the suitable density of the DMRS in the time domain may also be different.

[0274] For example, when the time domain configuration of the PUSCH is the first configuration, X2 may be the first value. Also, when the time domain configuration of the PUSCH is a second configuration different from the first configuration, X2 may be a second value different from the first value. For example, when the time resource of the PUSCH is the first number of slots, X2 may be the first value. Also, when the time resource of the PUSCH is a second slot different from the first slot, X2 may be a second value different from the first value.

[0275] For example, X2 may be given based at least on X0. For example, X2 may be determined based at least on X0. For example, the terminal device 1 may determine X1 based at least on X0. For example, the base station device 3 may determine X1 based at least on X0.

[0276] By controlling X2 based at least on X0, it may be possible to suitably perform the DMRS arrangement based on the transport block arrangement period.

[0277] For example, when X0 is the first value, X2 may be the second value. Also, when X0 is the third value different from the first value, X2 may be the fourth value different from the second value.

[0278] For example, X2 may be given based at least on X1. For example, X2 may be determined based at least on X1. For example, the terminal device 1 may determine X2 based at least on X1. For example, the base station device 3 may determine X2 based at least on X1.

[0279] By controlling X2 based at least on X1, it may be possible to suitably perform the DMRS arrangement based on the arrangement period of the series of modulation symbols. Since the arrangement of the series of modulation symbols and the arrangement of the DMRS are processes in the same layer (resource element mapping layer processing), for example, X2 = X1 may be set.

[0280] For example, when X1 is the first value, X2 may be the second value. Also, when X1 is the third value different from the first value, X2 may be the fourth value different from the second value.

[0281] The coherence period may be a period in which the radio interval information can be regarded as the same. For example, the radio interval information may be information regarding the phase and / or amplitude that varies when the modulation symbols arranged in a certain resource element are transmitted in the radio interval. The radio interval information may be information including the influence of the precoder applied prior to the transmission of the modulation symbols.

[0282] The terminal device 1 may not generate the PUSCH so that the radio interval information is regarded as the same beyond the coherence period. The terminal device 1 may generate the PUSCH so that the radio interval information is regarded as the same within the coherence period.

[0283] The base station device 3 does not have to consider that the radio interval information is the same beyond the coherence period. The base station device 3 may consider that the radio interval information is the same within the coherence period.

[0284] For example, the radio interval information of another modulation symbol within the coherence period may be estimated by a certain modulation symbol within the coherence period. Also, the coherence period may be set so that the radio interval information of another modulation symbol within the coherence period can be estimated by a certain modulation symbol within the coherence period.

[0285] For example, the length X3 of one period of the coherence period of the PUSCH may be determined based at least on RRC parameters. For example, X3 may be indicated by RRC parameters. For example, X3 may be determined based at least on a signal from a higher layer. For example, X3 may be indicated by a signal from a higher layer. For example, X3 may be indicated by an uplink grant used for scheduling the PUSCH transmitted including the transport block. For example, X3 may be determined based at least on an uplink grant used for scheduling the PUSCH transmitted including the transport block. For example, X3 may be indicated by one DCI format. For example, X3 may be determined based at least on one DCI format.

[0286] That is, when the terminal device 1 determines X3 based at least on the third control information, in the X3 slot, the radio interval information may be considered to be the same. For example, the third control information may be determined based at least on RRC parameters, a signal from a higher layer, the uplink grant used for scheduling the PUSCH, and part or all of one DCI format.

[0287] Even when the terminal device 1 holds the third control information, the radio interval information for the message 3 PUSCH may be regarded as the same within one slot. That is, even when the terminal device 1 holds the third control information, X3 for the message 3 PUSCH may be one slot.

[0288] For example, the fact that the terminal device 1 holds the third control information may mean that the terminal device 1 holds X3. For example, the third control information may be information indicating X3. For example, the third control information may be information other than the information indicating X3, but may be information used to determine the X3.

[0289] Even when the terminal device 1 holds the third control information, the radio interval information for the PUSCH scheduled by the random access response grant may be regarded as the same within one slot. That is, even when the terminal device 1 holds the third control information, X3 for the PUSCH scheduled by the random access response grant may be one slot.

[0290] When the terminal device 1 does not hold the third control information, the radio interval information for the PUSCH may be regarded as the same within one slot. That is, when the terminal device 1 does not hold the third control information, X3 for the PUSCH may be one slot.

[0291] For example, X3 may be given based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, X3 may be determined based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine X3 based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine X3 based at least on the time domain configuration of the PUSCH scheduled by one uplink grant.

[0292] By controlling X3 based at least on the configuration of the time domain of the PUSCH, it may be possible to suitably control the channel estimation operation of the base station device 3 based on the configuration of the time domain of the PUSCH.

[0293] For example, when the configuration of the time domain of the PUSCH is the first configuration, X3 may be the first value. Also, when the configuration of the time domain of the PUSCH is a second configuration different from the first configuration, X3 may be a second value different from the first value. For example, when the time resource of the PUSCH is the first number of slots, X3 may be the first value. Also, when the time resource of the PUSCH is a second slot different from the first slot, X3 may be a second value different from the first value.

[0294] For example, X3 may be given based at least on X0. For example, X3 may be determined based at least on X0. For example, the terminal device 1 may determine X3 based at least on X0. For example, the base station device 3 may determine X3 based at least on X0.

[0295] By controlling X3 based at least on X0, it may be possible to suitably control the channel estimation operation of the base station device 3 based on the arrangement period of the transport block.

[0296] For example, when X0 is a first value, X3 may be a second value. Also, when X0 is a third value different from the first value, X3 may be a fourth value different from the second value.

[0297] For example, X3 may be given based at least on X1. For example, X3 may be determined based at least on X1. For example, the terminal device 1 may determine X3 based at least on X1. For example, the base station device 3 may determine X3 based at least on X1.

[0298] By controlling X3 based at least on X1, it may be possible to suitably control the channel estimation operation of the base station device 3 based on the arrangement period of the modulation symbol sequence.

[0299] For example, when X1 is a first value, X3 may be a second value. Also, when X1 is a third value different from the first value, X3 may be a fourth value different from the second value.

[0300] For example, X3 may be given based at least on X2. For example, X3 may be determined based at least on X2. For example, the terminal device 1 may determine X3 based at least on X2. For example, the base station device 3 may determine X3 based at least on X2.

[0301] By controlling X3 based at least on X2, it may be possible to suitably control the channel estimation operation of the base station device 3 based on the DMRS arrangement period. Since the density in the time domain can be controlled by the DMRS arrangement period, it is preferable to control the channel estimation operation of the base station device 3.

[0302] For example, when X2 is a first value, X3 may be a second value. Also, when X2 is a third value different from the first value, X3 may be a fourth value different from the second value.

[0303] For example, X2 may be provided based at least on X3. For example, X2 may be determined based at least on X3. For example, the terminal device 1 may determine X2 based at least on X3. For example, the base station device 3 may determine X2 based at least on X3.

[0304] As shown in FIG. 9, each of the arrangement period of the transport block, the arrangement period of the series of modulation symbols, the arrangement period of the DMRS for the PUSCH, and the coherence period of the PUSCH may have different values or may be set individually.

[0305] It is preferable to support a flexible PUSCH format as shown in FIG. 9. For example, when the terminal device 1 supports a plurality of services (for example, broadband service, low-latency service, automotive service, etc.), it is possible to configure a PUSCH format suitable for each service.

[0306] Supporting a flexible PUSCH format is also suitable for ensuring a predetermined transmission power. For example, when the maximum transmission power per unit time is defined by a treaty, national regulations, or specifications equivalent thereto, by setting the arrangement period of the transport block to a plurality of slots, it is possible to ensure a larger maximum transmission power compared to the case where the arrangement period is one slot.

[0307] On the other hand, there is a concern that the expected data rate (also referred to as transmission speed, throughput, etc.) may deteriorate by setting the arrangement period of the transport block to a plurality of slots.

[0308] By changing the size of the transport block according to the arrangement period of the transport block, it is at least expected to eliminate the above concern.

[0309] The terminal device 1 may determine a transport block based at least in part on some or all of the following procedures 1 to 3. Procedure 1) Determine the number N of resource elements within the time duration X4 RE to determine Procedure 2) Determine the intermediate number of information bits N info = N RE ·R·Q m Procedure 3) Determine the size of the transport block by determining

[0310] Procedure 1 may further include at least some or all of Procedures 1a and 1b. Procedure 1a) N a RE = N RB sc ·N sh symb -N PRB DMRS -N PRB oh Procedure 1b) Determine N RE = min(X5, N a RE )·n PRB to determine

[0311] In Procedure 1a, N sh symb may be the number of OFDM symbols allocated for PUSCH within the time duration X4. N PRB DMRS is an overhead value considering the resource elements where the DMRS for the PUSCH is located. N PRB DMRS may be the number per PRB of the resource elements where the DMRS is located in the OFDM symbols allocated for the PUSCH. N PRB oh is a value considering the overhead caused by elements other than the DMRS for the PUSCH. Here, the element may at least include the control resource set or the overhead caused by the arrangement of CSI-RS. Here, N PRBoh is indicated by the RRC parameters. PRB oh Even if the number of PUSCH messages is 3, the number of PUSCH messages is 3. PRB oh It may be assumed that N is 0. PRB oh If the ,N, PRB oh may be assumed to be zero.

[0312] For example, X4 may be provided by fourth control information, which may be determined based on at least some or all of an RRC parameter, a higher layer signal, an uplink grant used for scheduling the PUSCH, and one DCI format.

[0313] Even when the terminal device 1 holds the fourth control information, X4 may be one slot for message 3 PUSCH.

[0314] For example, the fact that the terminal device 1 holds the fourth control information may mean that the terminal device 1 holds X4. For example, the fourth control information may be information indicating X4. For example, the fourth control information may be information other than information indicating X4, but may be information used to determine the X4.

[0315] Even when the terminal device 1 holds the fourth control information, X4 may be one slot for the PUSCH scheduled by the random access response grant.

[0316] If the terminal device 1 does not hold the fourth control information, X4 may be one slot for PUSCH.

[0317] For example, the fourth control information may be the arrangement period of transport blocks. For example, the time length X4 may be given based at least on the arrangement period of transport blocks being X0. For example, the time length X4 may be determined based at least on the arrangement period of transport blocks being X0. For example, the terminal device 1 may determine the time length X4 based at least on the arrangement period of transport blocks being X0. For example, the base station device 3 may determine the time length X4 based at least on the arrangement period of transport blocks being X0.

[0318] For example, the fourth control information may be the arrangement period of a series of modulation symbols. For example, the time length X4 may be given based at least on the arrangement period of a series of modulation symbols being X1. For example, the time length X4 may be determined based at least on the arrangement period of a series of modulation symbols being X1. For example, the terminal device 1 may determine the time length X4 based at least on the arrangement period of a series of modulation symbols being X1. For example, the base station device 3 may determine the time length X4 based at least on the arrangement period of a series of modulation symbols being X1.

[0319] For example, X4 may be given based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, X4 may be determined based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine X4 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine X4 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant.

[0320] By controlling X4 based at least on the configuration of the time domain of the PUSCH, it may be possible to achieve a desired data rate regardless of the configuration of the time domain of the PUSCH. For example, when the time resource of the PUSCH is 10 slots, by setting X4 to 10 slots, a data rate similar to that when X4 is set to 1 slot when the time resource of the PUSCH is 1 slot is expected.

[0321] For example, when the configuration of the time domain of the PUSCH is the first configuration, X4 may be the first value. Also, when the configuration of the time domain of the PUSCH is a second configuration different from the first configuration, X4 may be a second value different from the first value. For example, when the time resource of the PUSCH is the first number of slots, X4 may be the first value. Also, when the time resource of the PUSCH is a second slot different from the first slot, X4 may be a second value different from the first value.

[0322] For example, X4 may be given based at least on X0. For example, X4 may be determined based at least on X0. For example, the terminal device 1 may determine X4 based at least on X0. For example, the base station device 3 may determine X4 based at least on X0.

[0323] By controlling X4 based at least on X0, it may be possible to achieve a predetermined data rate regardless of the arrangement period of the transport block. For example, when X0 is 10 slots, by setting X4 to 10 slots, a data rate similar to that when X4 is set to 1 slot when X0 is 1 slot is expected.

[0324] For example, when X0 is the first value, X4 may be the second value. Also, when X0 is a third value different from the first value, X4 may be a fourth value different from the second value.

[0325] For example, X4 may be given based at least on X1. For example, X4 may be determined based at least on X1. For example, the terminal device 1 may determine X4 based at least on X1. For example, the base station device 3 may determine X4 based at least on X1.

[0326] By controlling X4 based at least on X1, it may be possible to achieve a predetermined data rate regardless of the arrangement period of modulation symbols. For example, when X1 is 10 slots and X4 is set to 10 slots, a data rate similar to that when X1 is 1 slot and X4 is set to 1 slot is expected.

[0327] For example, when X1 is a first value, X4 may be a second value. Also, when X1 is a third value different from the first value, X4 may be a fourth value different from the second value.

[0328] For example, X4 may be given based at least on X2. For example, X4 may be determined based at least on X2. For example, the terminal device 1 may determine X4 based at least on X2. For example, the base station device 3 may determine X4 based at least on X2.

[0329] By controlling X4 based at least on X2, it may be possible to achieve a predetermined data rate regardless of the arrangement period of DMRS. For example, when X2 is 10 slots and X4 is set to 10 slots, a data rate similar to that when X2 is 1 slot and X4 is set to 1 slot is expected.

[0330] For example, when X2 is a first value, X4 may be a second value. Also, when X2 is a third value different from the first value, X4 may be a fourth value different from the second value.

[0331] For example, X4 may be given based at least on X3. For example, X4 may be determined based at least on X3. For example, the terminal device 1 may determine X4 based at least on X3. For example, the base station device 3 may determine X4 based at least on X3.

[0332] By controlling X4 based at least on X3, it may be possible to achieve a predetermined data rate regardless of the coherence period. For example, when X3 is 10 slots, by setting X4 to 10 slots, a data rate similar to the case where X4 is set to 1 slot when X3 is 1 slot is expected.

[0333] For example, when X3 is a first value, X4 may be a second value. Also, when X3 is a third value different from the first value, X4 may be a fourth value different from the second value.

[0334] For example, in step 1b, n PRB may be the number of PRBs allocated for the PUSCH.

[0335] For example, X5 may be determined based at least on fifth control information. The fifth control information may be determined based at least on any one of an RRC parameter, a higher layer signal, an uplink grant used for scheduling the PUSCH, or one DCI format.

[0336] For example, even when the terminal device 1 holds the fifth control information, X5 may be 156 RE for the message 3 PUSCH.

[0337] For example, the fact that the terminal device 1 holds the fifth control information may mean that the terminal device 1 holds X5. For example, the fifth control information may be information indicating X5. For example, the fourth control information may be information other than the information indicating X5, but may be information used to determine the X5.

[0338] For example, even when the terminal device 1 holds the fifth control information, X5 may be 156 RE for the PUSCH scheduled by the random access response grant.

[0339] For example, when the terminal device 1 does not hold the fifth control information, X5 may be 156 RE for the PUSCH.

[0340] For example, X5 may be given based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, X5 may be determined based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine X5 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine X5 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant.

[0341] For example, X5 may be given based at least on X0. For example, X5 may be determined based at least on X0. For example, the terminal device 1 may determine X5 based at least on X0. For example, the base station device 3 may determine X5 based at least on X0.

[0342] For example, X5 may be given based at least on X1. For example, X5 may be determined based at least on X1. For example, the terminal device 1 may determine X5 based at least on X1. For example, the base station device 3 may determine X5 based at least on X1.

[0343] For example, X5 may be given based at least on X2. For example, X5 may be determined based at least on X2. For example, the terminal device 1 may determine X5 based at least on X2. For example, the base station device 3 may determine X5 based at least on X2.

[0344] For example, X5 may be given based at least on X3. For example, X5 may be determined based at least on X3. For example, the terminal device 1 may determine X5 based at least on X3. For example, the base station device 3 may determine X5 based at least on X3.

[0345] For example, X5 may be given based at least on X4. For example, X5 may be determined based at least on X4. For example, the terminal device 1 may determine X5 based at least on X4. For example, the base station device 3 may determine X5 based at least on X4.

[0346] Since X5 is estimated as the total number of resource elements assigned to data per X4 slot, it is preferable that X5 be controlled based on X4.

[0347] For example, when X4 is a first value, X5 may be a second value. Also, when X4 is a third value different from the first value, X5 may be a fourth value different from the second value.

[0348] In step 2, R is the target coding rate determined by the value of the MCS field included in the uplink grant. In step 2, Q m is the order of the modulation scheme of the PUSCH, or the modulation order of the PUSCH. In step 2, v is the number of layers of the PUSCH. The number of layers is also referred to as the spatial multiplexing number, etc. That is, the layer may be the number of spatial streams.

[0349] In step 3, N infoBased on the value of, the switching between step 3a and step 3c is performed. For example, N info If the value of is less than or equal to a predetermined value, step 3a may be performed. Also, N info If the value of exceeds the predetermined value, step 3c may be performed. Here, for example, the predetermined value may be 3824.

[0350] In step 3a, N a info = max(24, floor(N info / 2)·2^n) gives N a info In step 3a, n = max(3, floor(N info )) - 6).

[0351] For example, after step 3a is performed, step 3b may be performed.

[0352] In step 3b, one value is selected from the candidate values of the transport block size included in a predetermined table. Here, the predetermined table includes, as candidate values of TBS, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 208, 224, 240, 256, 272, 288, 304, 320, 336, 352, 368, 384, 408, 432, 456, 480, 504, 528, 552, 576, 608, 640, 672, 704, 736, 768, 808, 848, 888, 928, 984, 1032, 1064, 1128, 1160, 1192, 1224, 1256, 1288, 1320, 1352, 1416, 1480, 1544, 1608, 1672, 1736, 1800, 1864, 1928, 2024, 2088, 2152, 2216, 2280, 2408, 2472, 2536, 2600, 2664, 2728, 2792, 2856, 2976, 3104, 3240, 3368, 3496, 3624, 3753, 3824, a part or all of which may be included at least. That is, the predetermined table may include a set of integer values within a range not exceeding the predetermined value.

[0353] For example, in step 3b, N a info The candidate value of TBS that is closest to N without falling below it may be determined from the predetermined table. a info

[0354] In step 3c, N a info = max(3840, 2^n · round((N info- 24) / 2^n)) gives N a info In step 3c, n = floor(log2(N info - 24)) - 5 is given.

[0355] For example, after step 3c is performed, step 3d may be performed.

[0356] In step 3d, the size N of the transport block TBS is determined. For example, when R is 1 / 4 or less, N TBS = 8 · C · ceil((N a info + 24) / (8 · C)) - 24 is given. Here, C = ceil((N a info + 24) / 3816) is given.

[0357] In step 3d, for example, when R exceeds 1 / 4 and N a info exceeds 8424, N TBS = 8 · C · ceil((N a info + 24) / (8 · C)) - 24 is given. Here, C = ceil((N a info + 24) / 8424) is given.

[0358] In step 3d, for example, when R exceeds 1 / 4 and N a info is 8424 or less, N​TBS =8·ceil((N a info +24) / 8)-24 is given by.

[0359] The greater the placement period of the transport block, the more concerned about the expected decrease in the data rate. Therefore, considering the case where the placement period of the transport block increases, it is preferable to introduce a mechanism for controlling the size of the transport block.

[0360] For example, the control of the target coding rate R may be performed. Here, the target coding rate R may be a value exceeding 1. When the target coding rate R exceeds 1 and the placement period X0 of the transport block is 1 slot, the effective coding rate of the transport block is expected to exceed 1, so generally communication is impossible. On the other hand, even if the placement period of the transport block exceeds 1, if the placement period X0 of the transport block exceeds 1 slot, the effective coding rate of the transport block is less than 1, and suitable communication can be realized.

[0361] For example, the target coding rate R may be a value exceeding a predetermined value. The predetermined value may be a value included in the range from 0.93 to 1. The predetermined value is a value close to the effective coding rate supported by New Radio.

[0362] The target coding rate Rmax supported by New Radio is approximately 948 / 1024. That is, the predetermined value may be a value close to the target coding rate Rmax supported by the New Radio.

[0363] The effective coding rate may be calculated by dividing the size of the transport block by the product of the number of resource elements of the PUSCH included in the period in which the transport block is placed and the order of the modulation scheme of the PUSCH.

[0364] The MCS field included in the uplink grant used for PUSCH scheduling may indicate one index. Here, in the first case, a target coding rate may be given based on the first MCS table and the one index. Also, in the second case, a target coding rate may be given based on the second MCS table and the one index. Here, all the target coding rates included in the first MCS table may be equal to or less than the predetermined value. Also, at least a part of the target coding rates included in the first MCS table may exceed the predetermined value. Also, all of the target coding rates corresponding to QPSK modulation among all the target coding rates included in the first MCS table may be equal to or less than the predetermined value. Also, at least a part of the target coding rates corresponding to QPSK among the target coding rates included in the first MCS table may exceed the predetermined value.

[0365] The terminal device 1 may determine whether to refer to the first MCS table or the second MCS table based on the index indicated by the MCS field included in the uplink grant used for PUSCH scheduling.

[0366] The base station device 3 may determine whether to refer to the first MCS table or the second MCS table based on the index indicated by the MCS field included in the uplink grant used for PUSCH scheduling.

[0367] For example, in the first case, it may be a case where the CRC sequence added to the DCI format of the uplink grant is scrambled by the C-RNTI, the signal waveform of the PUSCH is DFT-s-OFDM, and the transport block placement period X0 is 1 slot.

[0368] For example, in the first case, even when the CRC sequence added to the DCI format of the uplink grant is scrambled with the C-RNTI, the signal waveform of the PUSCH is DFT-s-OFDM, and the arrangement period X1 of the series of modulation symbols is 1 slot, it may be the case.

[0369] For example, in the second case, even when the CRC sequence added to the DCI format of the uplink grant is scrambled with the C-RNTI, the signal waveform of the PUSCH is the DFT-s-OFDM, and the arrangement period X0 of the transport block is an integer exceeding 1 slot, it may be the case.

[0370] For example, in the second case, even when the CRC sequence added to the DCI format of the uplink grant is scrambled with the C-RNTI, the signal waveform of the PUSCH is the DFT-s-OFDM, and the arrangement period X1 of the series of modulation symbols exceeds 1 slot, it may be the case.

[0371] Furthermore, in the third case, a target coding rate may be given based on the third MCS table and the one index.

[0372] In the third case, even when the CRC sequence added to the DCI format of the uplink grant is scrambled with the C-RNTI, the signal waveform of the PUSCH is the DFT-s-OFDM, the arrangement period X0 of the transport block is 1 slot, and an RRC parameter indicating that the third MCS table is set is held by the terminal device 1, it may be the case.

[0373] In the third case, even when the CRC sequence added to the DCI format of the uplink grant is scrambled with the C-RNTI, the signal waveform of the PUSCH is the DFT-s-OFDM, the arrangement period X1 of the series of modulation symbols is 1 slot, and an RRC parameter indicating that the third MCS table is set is held by the terminal device 1, it may be the case.

[0374] For example, the first table may include modulation schemes with a modulation order of 64QAM or less. The first table may not include modulation schemes with a modulation order exceeding 64QAM (e.g., 256QAM, etc.).

[0375] For example, the second table may include modulation schemes with a modulation order of 64QAM or less. The second table may not include modulation schemes with a modulation order exceeding 64QAM (e.g., 256QAM, etc.).

[0376] For example, the third table may include modulation schemes with a modulation order exceeding 64QAM (e.g., 256QAM, etc.).

[0377] Even in the second case, the first table may be used for Message 3 PUSCH. Even in the second case, the first table may be used for PUSCH scheduled by a random access response grant.

[0378] For example, the target coding rate R may be given based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, the target coding rate R may be determined based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine the target coding rate R based at least on the time domain configuration of the PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine the target coding rate R based at least on the time domain configuration of the PUSCH scheduled by one uplink grant.

[0379] By controlling the target coding rate R based at least on the time-domain configuration of the PUSCH, it may be possible to achieve a desired data rate regardless of the time-domain configuration of the PUSCH. For example, when the time resource of the PUSCH is 10 slots, by setting the target coding rate R to about 4, a data rate similar to that when the target coding rate R is set to 0.4 when the time resource of the PUSCH is 1 slot is expected.

[0380] For example, when the time-domain configuration of the PUSCH is the first configuration, the target coding rate R may be the first value. Also, when the time-domain configuration of the PUSCH is a second configuration different from the first configuration, the target coding rate R may be a second value different from the first value. For example, when the time resource of the PUSCH is the first number of slots, the target coding rate R may be the first value. Also, when the time resource of the PUSCH is a second slot different from the first slot, the target coding rate R may be a second value different from the first value.

[0381] For example, the target coding rate R may be given based at least on X0. For example, the target coding rate R may be determined based at least on X0. For example, the terminal device 1 may determine the target coding rate R based at least on X0. For example, the base station device 3 may determine the target coding rate R based at least on X0.

[0382] By controlling the target coding rate R based at least on X0, it may be possible to achieve a predetermined data rate regardless of the transport block placement period. For example, when X0 is 10 slots, by setting the target coding rate R to about 4, a data rate similar to that when the target coding rate R is set to about 0.4 when X0 is 1 slot is expected.

[0383] For example, when X0 is a first value, the target coding rate R may be a second value. Also, when X0 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.

[0384] For example, the target coding rate R may be given based at least on X1. For example, the target coding rate R may be determined based at least on X1. For example, the terminal device 1 may determine the target coding rate R based at least on X1. For example, the base station device 3 may determine the target coding rate R based at least on X1.

[0385] By controlling the target coding rate R based at least on X1, it may be possible to achieve a predetermined data rate regardless of the arrangement period of modulation symbols. For example, by setting the target coding rate R to about 4 when X1 is 10 slots, a data rate similar to that when setting the target coding rate R to about 0.4 when X1 is 1 slot is expected.

[0386] For example, when X1 is a first value, the target coding rate R may be a second value. Also, when X1 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.

[0387] For example, the target coding rate R may be given based at least on X2. For example, the target coding rate R may be determined based at least on X2. For example, the terminal device 1 may determine the target coding rate R based at least on X2. For example, the base station device 3 may determine the target coding rate R based at least on X2.

[0388] By controlling the target coding rate R based at least on X2, it may be possible to achieve a predetermined data rate regardless of the DMRS arrangement period. For example, when X2 is 10 slots, by setting the target coding rate R to about 4, a data rate similar to that when the target coding rate R is set to 0.4 when X2 is 1 slot is expected.

[0389] For example, when X2 is a first value, the target coding rate R may be a second value. Also, when X2 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.

[0390] For example, the target coding rate R may be given based at least on X3. For example, the target coding rate R may be determined based at least on X3. For example, the terminal device 1 may determine the target coding rate R based at least on X3. For example, the base station device 3 may determine the target coding rate R based at least on X3.

[0391] By controlling the target coding rate R based at least on X3, it may be possible to achieve a predetermined data rate regardless of the coherence period. For example, when X3 is 10 slots, by setting the target coding rate R to about 4, a data rate similar to that when the target coding rate R is set to about 0.4 when X3 is 1 slot is expected.

[0392] For example, when X3 is a first value, the target coding rate R may be a second value. Also, when X3 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.

[0393] For example, in the procedure for determining the transport block size (part or all of procedures 1 to 3), the transport block size may be controlled.

[0394] For example, the first operator may be used to control the size of a transport block. That is, the first operator may act on at least any one of the variables in the procedure and may be used to control the size of the transport block.

[0395] For example, when the placement period X0 of the transport block exceeds 1 slot, the first size of the transport block may be given based at least on the first operator. For example, when the placement period X0 of the transport block exceeds 1 slot, the size of the transport block may be determined based at least on the first operator. For example, when the placement period X0 of the transport block exceeds 1 slot, the terminal device 1 may determine the size of the transport block based at least on the first operator. For example, when the placement period X0 of the transport block exceeds 1 slot, the base station device 3 may determine the size of the transport block based at least on the first operator.

[0396] For example, when the placement period X0 of the transport block is 1 slot, the second size of the transport block may be given without being based on the first operator. For example, when the placement period X0 of the transport block is 1 slot, the size of the transport block may be determined without being based on the first operator. For example, when the placement period X0 of the transport block is 1 slot, the terminal device 1 may determine the size of the transport block without being based on the first operator. For example, when the placement period X0 of the transport block is 1 slot, the base station device 3 may determine the size of the transport block without being based on the first operator. Here, the first operator may be an operator that acts such that the first size is larger than the second size. Here, the values of various parameters used for the determination of the first size may be the same as the values of various parameters used for the determination of the second size.

[0397] For example, when the arrangement period X1 of the series of modulation symbols exceeds 1 slot, the first size of the transport block may be given based at least on the first operator. For example, when the arrangement period X1 of the series of modulation symbols exceeds 1 slot, the size of the transport block may be determined based at least on the first operator. For example, when the arrangement period X1 of the series of modulation symbols exceeds 1 slot, the terminal device 1 may determine the size of the transport block based at least on the first operator. For example, when the arrangement period X1 of the series of modulation symbols exceeds 1 slot, the base station device 3 may determine the size of the transport block based at least on the first operator.

[0398] For example, when the arrangement period X1 of the series of modulation symbols is 1 slot, the second size of the transport block may be given without being based on the first operator. For example, when the arrangement period X1 of the series of modulation symbols is 1 slot, the size of the transport block may be determined without being based on the first operator. For example, when the arrangement period X1 of the series of modulation symbols is 1 slot, the terminal device 1 may determine the size of the transport block without being based on the first operator. For example, when the arrangement period X1 of the series of modulation symbols is 1 slot, the base station device 3 may determine the size of the transport block without being based on the first operator. Here, the first operator may be an operator that acts so that the first size becomes larger than the second size. Here, the values of various parameters used for the determination of the first size may be the same as the values of various parameters used for the determination of the second size.

[0399] For example, the first operator may be used in procedure 1a regarding the determination of the size of the transport block. For example, in procedure 1a, N a RE may be controlled. For example, in procedure 1a, N RB sc ·N sh symbThe value given as the first operator may be multiplied. Here, the value given as the first operator may be a value greater than 1. For example, in step 1a, the value given as the first operator may be N PRB oh For example, in step 1a, N a RE = N RB sc · N sh symb - N PRB DMRS - N PRB oh + X gives N a RE where X may be the value given as the first operator.

[0400] For example, the first operator may be used in step 1b related to determining the size of the transport block. For example, in step 1b, N RE may be controlled based at least on the first operator. For example, in step 1b, min(X5, N a RE )· n PRB may be multiplied by the value given as the first operator. For example, in step 1b, X5 may be multiplied by the value given as the first operator. For example, in step 1b, N a RE may be multiplied by the value given as the first operator. For example, in step 1b, N RE = min(X5, N a RE )· n PRB + X gives N RE where X may be the value given as the first operator.

[0401] For example, the first operator may be used at least in step 2 related to determining the size of the transport block. For example, in step 2, N info = N RE · R· Q m · v may be multiplied by the value given as the first operator. For example, in step 2, Ninfo =N RE ·R·Q m ·v + X gives N info wherein X may be a value given as the first operator.

[0402] For example, the first operator may be used at least in Procedure 3 for determining the size of the transport block. For example, N TBS = 8·C·ceil((N a info + 24) / (8·C))·X - 24 gives N TBS wherein X may be a value given as the first operator. For example, N TBS = 8·C·ceil((N a info + 24)·X / (8·C)) - 24 gives N TBS wherein X may be a value given as the first operator. For example, N TBS = 8·C·ceil((N a info ·X + 24) / (8·C)) - 24 gives N TBS wherein X may be a value given as the first operator. For example, N TBS = 8·C·ceil((N a info + 24) / (8·C)) - 24 + X gives N TBS wherein X may be a value given as the first operator.

[0403] For example, the first operator may be used at least in N TBS For example, the size of the transport block may be given by multiplying a value given as the first operator to N TBS The first operator may be determined based at least on the sixth control information. For example, the sixth control information may be determined based at least on any one of an RRC parameter, a higher layer signal, an uplink grant used for scheduling of PUSCH, or one DCI format.

[0404] ​

[0405] For example, the fact that the terminal device 1 holds the sixth control information may mean that the terminal device 1 holds X6. For example, the sixth control information may be information indicating X6. For example, the sixth control information may be information other than the information indicating X6, but may be information used to determine the X6.

[0406] Even when the terminal device 1 holds the sixth control information, the first operator may not be used in determining the size of the transport block included in the message 3 PUSCH.

[0407] Even when the terminal device 1 holds the sixth control information, the first operator may not be used in determining the size of the transport block included in the PUSCH scheduled by the random access response grant.

[0408] When the terminal device 1 does not hold the sixth control information, the first operator may not be used in determining the size of the transport block included in the PUSCH.

[0409] For example, X6 may be given based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, X6 may be determined based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine X6 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine X6 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant.

[0410] By controlling X6 based at least on the configuration of the time domain of the PUSCH, it may be possible to achieve a desired data rate regardless of the configuration of the time domain of the PUSCH.

[0411] For example, when the time domain configuration of PUSCH is the first configuration, X6 may be the first value. Also, when the time domain configuration of PUSCH is a second configuration different from the first configuration, X6 may be a second value different from the first value. For example, when the time resource of PUSCH is the first number of slots, X6 may be the first value. Also, when the time resource of PUSCH is a second slot different from the first slot, X6 may be a second value different from the first value.

[0412] For example, X6 may be given based at least on X0. For example, X6 may be determined based at least on X0. For example, the terminal device 1 may determine X6 based at least on X0. For example, the base station device 3 may determine X6 based at least on X0.

[0413] By controlling X6 based at least on X0, it may be possible to achieve a predetermined data rate regardless of the arrangement period of the transport block.

[0414] For example, when X0 is the first value, X6 may be the second value. Also, when X0 is a third value different from the first value, X6 may be a fourth value different from the second value.

[0415] For example, X6 may be given based at least on X1. For example, X6 may be determined based at least on X1. For example, the terminal device 1 may determine X6 based at least on X1. For example, the base station device 3 may determine X6 based at least on X1.

[0416] By controlling the target coding rate R based at least on X1, it may be possible to achieve a predetermined data rate regardless of the arrangement period of the modulation symbol sequence.

[0417] For example, when X1 is a first value, X6 may be a second value. Also, when X1 is a third value different from the first value, X6 may be a fourth value different from the second value.

[0418] For example, X6 may be given based at least on X2. For example, X6 may be determined based at least on X2. For example, the terminal device 1 may determine X6 based at least on X2. For example, the base station device 3 may determine X6 based at least on X2.

[0419] By controlling the target coding rate R based at least on X2, it may be possible to achieve a predetermined data rate regardless of the DMRS placement period.

[0420] For example, when X2 is a first value, X6 may be a second value. Also, when X2 is a third value different from the first value, X6 may be a fourth value different from the second value.

[0421] For example, X6 may be given based at least on X3. For example, X6 may be determined based at least on X3. For example, the terminal device 1 may determine X6 based at least on X3. For example, the base station device 3 may determine X6 based at least on X3.

[0422] By controlling the target coding rate R based at least on X3, it may be possible to achieve a predetermined data rate regardless of the coherence period.

[0423] For example, when X3 is a first value, X6 may be a second value. Also, when X3 is a third value different from the first value, X6 may be a fourth value different from the second value.

[0424] For example, X6 may be provided based at least on X4. For example, X6 may be determined based at least on X4. For example, the terminal device 1 may determine X6 based at least on X4. For example, the base station device 3 may determine X6 based at least on X4.

[0425] By controlling X6 based at least on X4, it may be possible to achieve a predetermined data rate regardless of the method for determining the size of the transport block.

[0426] For example, when X4 is a first value, X6 may be a second value. Also, when X4 is a third value different from the first value, X6 may be a fourth value different from the second value.

[0427] FIG. 11 is a diagram showing an arrangement example of DMRS for PUSCH according to an aspect of the present embodiment. In FIG. 11, it is assumed that the arrangement period of the DMRS for the PUSCH is 1 slot. In FIG. 11, the horizontal axis represents the time axis and the vertical axis represents the frequency axis. Also, in the time domain in FIG. 11, resource elements corresponding to OFDM symbols for 2 slots are shown. Also, in the frequency domain in FIG. 11, resource elements corresponding to 1 PRB are shown. Also, the 28 OFDM symbols shown in FIG. 11 are indexed from l = 0 to l = 27 in ascending order in the time domain. Also, in FIG. 11, it is shown that the PUSCH is arranged from OFDM symbol l = 3 to l = 27.

[0428] For example, the arrangement of the DMRS may be provided based at least on the reference point l start and the arrangement pattern. For example, the arrangement of the DMRS may be determined based at least on the reference point l start and the arrangement pattern. For example, the terminal device 1 may determine the arrangement of the DMRS based at least on the reference point l start and the arrangement pattern. For example, the base station device 3 may determine the arrangement of the DMRS based at least on the reference point l startThe DMRS placement may be determined based at least on the configuration pattern and the placement pattern.

[0429] The placement pattern may at least include a set of OFDM symbol indexes where the DMRS is placed. Here, the point where the OFDM symbol index l = 0 in the DMRS placement pattern is set as the reference point l start shall be.

[0430] In FIG. 11, the reference point l for slot #0 0 start is set at the point where PUSCH transmission starts in slot #0 (i.e., the point with OFDM symbol index l = 3). That is, the OFDM symbol index l = 3 is the reference point l for slot #0 0 start is. Here, since the placement pattern for slot #0 is 0, 4, 8, the DMRS is placed in the resource elements indicated by the slashes and the grid lines. As shown in FIG. 11, the DMRS may be placed at regular intervals in the frequency direction. In particular, the DMRS in the resource elements indicated by the slashes is also called the front-loaded DMRS. Also, the DMRS in the resource elements indicated by the grid lines is also called the additional DMRS.

[0431] In FIG. 11, the reference point l for slot #1 1 start is set at the point where PUSCH transmission starts in slot #1 (i.e., the point with OFDM symbol index l = 14). That is, the OFDM symbol index l = 14 is the reference point l for slot #0 1 start is. Here, since the placement pattern for slot #1 is 0, 5, 10, the DMRS is placed in the resource elements indicated by the slashes and the grid lines. In particular, the DMRS in the resource elements indicated by the horizontal lines is also called the front-loaded DMRS. Also, the DMRS in the resource elements indicated by the vertical lines is also called the additional DMRS.

[0432] As also shown in FIG. 11, the DMRS arrangement pattern may vary for each slot or may be set for each slot. For example, the DMRS arrangement pattern may be determined based on the number of OFDM symbols used for PUSCH in a slot.

[0433] As shown in FIG. 11, the sparse DMRS arrangement in the time domain is suitable in an environment where the terminal device 1 is moving at high speed, but it may not be said to be an efficient use of resources when the terminal device 1 is moving slowly or when the terminal device 1 is not moving. Therefore, when PUSCH is arranged over a plurality of slots, it is preferable to set the DMRS arrangement to be further limited.

[0434] For example, the slot in which DMRS is arranged may be given at least based on the DMRS arrangement period X2. For example, the slot in which DMRS is arranged may be determined at least based on the DMRS arrangement period X2. For example, the terminal device 1 may determine in which slot of one period of the DMRS arrangement period DMRS is arranged, at least based on the DMRS arrangement period X2. For example, the base station device 3 may determine in which slot of one period of the DMRS arrangement period DMRS is arranged, at least based on the DMRS arrangement period X2.

[0435] FIG. 12 is a diagram showing an example of a slot in which DMRS for PUSCH according to an aspect of the present embodiment is arranged. In FIG. 12, the horizontal axis represents the time axis. Also, in FIG. 12, a plurality of slots (eight slots in FIG. 12) are shown on the time axis. Here, the plurality of slots in FIG. 12 are indexed for each DMRS arrangement period in ascending order of time, such as from slot #0 to slot #3. In FIG. 12, the plurality of slots are arranged continuously in the time domain, but the aspect of the present invention is not limited to the case where the plurality of slots are arranged continuously in the time domain. For example, in the aspect of the present invention, the plurality of slots may be constituted by slots in which uplink transmission is possible. That is, in the aspect of the present invention, the plurality of slots may be configured not to include slots in which downlink transmission is possible.

[0436] For example, in FIG. 12, the DMRS for PUSCH may be arranged in slot #0, slot #1, slot #4, and slot #5. On the other hand, in FIG. 12, the DMRS for PUSCH may not be arranged in slot #2, slot #3, slot #6, and slot #7.

[0437] For example, the slot in which the DMRS for PUSCH is arranged may be arranged in the first X7 slots in one period of the DMRS arrangement period. On the other hand, the DMRS may not be arranged in the slot in which it is determined that the DMRS for PUSCH is not arranged.

[0438] For example, the slot in which the DMRS for PUSCH is arranged may have the periodicity of the X7 slots in one period of the DMRS arrangement period. For example, the slot i in which the DMRS for PUSCH is arranged may be a value that satisfies mod(i, X7)=Z. Here, Z may be included in at least any one of an RRC parameter, an upper layer signal, an uplink grant used for PUSCH scheduling, or one DCI format.

[0439] For example, X7 may be determined based at least on the seventh control information. For example, the seventh control information may be determined based at least on any one of RRC parameters, a signal of a higher layer, an uplink grant used for scheduling of PUSCH, or one DCI format.

[0440] Even when the terminal device 1 holds the seventh control information, DMRS for the message 3 PUSCH may be arranged in all slots.

[0441] For example, the fact that the terminal device 1 holds the seventh control information may mean that the terminal device 1 holds X7. For example, the seventh control information may be information indicating X7. For example, the seventh control information may be information other than the information indicating X7, but information used to determine the X7.

[0442] Even when the terminal device 1 holds the seventh control information, DMRS for the PUSCH scheduled by the random access response grant may be arranged in all slots.

[0443] When the terminal device 1 does not hold the seventh control information, DMRS for the PUSCH may be arranged in all slots.

[0444] For example, X7 may be given based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, X7 may be determined based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the terminal device 1 may determine X7 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant. For example, the base station device 3 may determine X7 based at least on the configuration of the time domain of the PUSCH scheduled by one uplink grant.

[0445] By controlling X7 based at least on the configuration of the time domain of the PUSCH, it may be possible to control the density of the time domain of the DMRS of the PUSCH based on the configuration of the time domain of the PUSCH.

[0446] For example, when the configuration of the time domain of the PUSCH is the first configuration, X7 may be the first value. Also, when the configuration of the time domain of the PUSCH is a second configuration different from the first configuration, X7 may be a second value different from the first value. For example, when the time resource of the PUSCH is the first number of slots, X7 may be the first value. Also, when the time resource of the PUSCH is a second slot different from the first slot, X7 may be a second value different from the first value.

[0447] For example, X7 may be given based at least on X0. For example, X7 may be determined based at least on X0. For example, the terminal device 1 may determine X7 based at least on X0. For example, the base station device 3 may determine X7 based at least on X0.

[0448] By controlling X7 based at least on X0, it may be possible to control the density of the time domain of the DMRS of the PUSCH based on the arrangement period of the transport block. For example, it is preferable that a predetermined DMRS arrangement is realized for each transport block.

[0449] For example, when X0 is the first value, X7 may be the second value. Also, when X0 is a third value different from the first value, X7 may be a fourth value different from the second value.

[0450] For example, X7 may be given based at least on X1. For example, X7 may be determined based at least on X1. For example, the terminal device 1 may determine X7 based at least on X1. For example, the base station device 3 may determine X7 based at least on X1.

[0451] By controlling X7 based at least on X1, it may be possible to control the density of the time domain of the DMRS of the PUSCH based on the arrangement period of the series of modulation symbols. For example, it may be easier to implement the arrangement of the modulation symbols and the arrangement of the DMRS.

[0452] For example, when X1 is a first value, X7 may be a second value. Also, when X1 is a third value different from the first value, X7 may be a fourth value different from the second value.

[0453] For example, X7 may be given based at least on X2. For example, X7 may be determined based at least on X2. For example, the terminal device 1 may determine X7 based at least on X2. For example, the base station device 3 may determine X7 based at least on X2.

[0454] By controlling X7 based at least on X2, it may be possible to control the density of the time domain of the DMRS of the PUSCH based on the arrangement period of the DMRS. By setting the arrangement period of the DMRS and the density of the time domain of the DMRS, a flexible arrangement of the DMRS can be realized.

[0455] For example, when X2 is a first value, X7 may be a second value. Also, when X2 is a third value different from the first value, X7 may be a fourth value different from the second value.

[0456] For example, X7 may be given based at least on X3. For example, X7 may be determined based at least on X3. For example, the terminal device 1 may determine X7 based at least on X3. For example, the base station device 3 may determine X7 based at least on X3.

[0457] By controlling X7 based at least on X3, it may be possible to control the density of the time domain of the DMRS of the PUSCH based on the coherence period. By setting the coherence period and the density of the time domain of the DMRS, it may be possible to control the DMRS density based on the moving speed of the terminal.

[0458] For example, when X3 is a first value, X7 may be a second value. Also, when X3 is a third value different from the first value, X7 may be a fourth value different from the second value.

[0459] For example, X7 may be given based at least on X4. For example, X7 may be determined based at least on X4. For example, the terminal device 1 may determine X7 based at least on X4. For example, the base station device 3 may determine X7 based at least on X4.

[0460] By controlling X7 based at least on X4, it may be possible to control the density of the time domain of the DMRS of the PUSCH based on the method for determining the size of the transport block.

[0461] For example, when X4 is a first value, X7 may be a second value. Also, when X4 is a third value different from the first value, X7 may be a fourth value different from the second value.

[0462] FIG. 13 is a diagram showing an example of the arrangement of DMRS for PUSCH according to an aspect of the present embodiment. In FIG. 13, it is assumed that the arrangement period of the DMRS for the PUSCH is 2 slots. In FIG. 13, the horizontal axis represents the time axis, and the vertical axis represents the frequency axis. Also, in the time domain in FIG. 13, resource elements corresponding to OFDM symbols for 2 slots are shown. Further, in the frequency domain in FIG. 13, resource elements corresponding to 1 PRB are shown. Also, the 28 OFDM symbols shown in FIG. 13 are indexed from l = 0 to l = 27 in ascending order in the time domain. Also, in FIG. 13, it is shown that the PUSCH is arranged from OFDM symbol l = 3 to l = 27.

[0463] In FIG. 13, the DMRS arrangement pattern includes OFDM symbol indices 0, 8, and 16. That is, with reference to the DMRS reference point l start DMRS is arranged at the 0th, 8th, and 16th OFDM symbols.

[0464] As shown in FIG. 13, the DMRS arrangement pattern may be applied every one period of the DMRS arrangement period. Here, the DMRS arrangement pattern may be constituted by a set of integer values in the range from 0 to X2 * 14 OFDM symbols - 1. In particular, at least one of the OFDM symbol indices included in the DMRS arrangement pattern may be a value exceeding 13.

[0465] Hereinafter, aspects of various devices according to an aspect of the present embodiment will be described.

[0466] (1) To achieve the above object, an aspect of the present invention takes the following means. That is, a first aspect of the present invention is a terminal device, comprising a receiving unit that receives a DCI format used for scheduling PUSCH, and a transmitting unit that transmits the PUSCH in a plurality of slots, wherein the size of the transport block is given based on a target coding rate indicated by the DCI format, the target coding rate is 1 or more, the effective coding rate of the PUSCH is 1 or less, and the effective coding rate is a value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.

[0467] (2) Further, in the first aspect of the present invention, the DCI format indicates an index. In the first case, a target coding rate is given based on a first MCS table and the index. In the second case, a target coding rate is given based on a second MCS table and the index. All target coding rates included in the first MCS table are 1 or less, and at least one of the target coding rates included in the second MCS table is 1 or more.

[0468] (3) Further, in the first aspect of the present invention, the DCI format indicates an index. The terminal device selects one MCS table from a set of MCS tables including at least a first MCS table and a second MCS table, determines a target coding rate based on the one MCS table and the index, all target coding rates included in the first MCS table are 1 or less, and at least one of the target coding rates included in the second MCS table is 1 or more.

[0469] (4) Also, in the first aspect of the present invention, the first MCS table is an MCS table including at least 64QAM, at least one of the target coding rates included in the second MCS table is 1 or more, and in the third case, a target coding rate is given based on the third MCS table and the index. The third MCS table is an MCS table including at least 256QAM. In the first case, the CRC added to the DCI format is scrambled by the C-RNTI, the signal waveform of the PUSCH is DFT-S-OFDM, the RRC parameter indicating the third MCS table is not set, and the PUSCH is arranged in one slot. In the second case, the CRC added to the DCI format is scrambled by the C-RNTI, the signal waveform of the PUSCH is the DFT-S-OFDM, and the PUSCH is arranged in a plurality of slots. In the third case, the CRC added to the DCI format is scrambled by the C-RNTI, the signal waveform of the PUSCH is the DFT-S-OFDM, the RRC parameter indicating the third MCS table is set, and the PUSCH is arranged in the one slot.

[0470] (5) Further, the second aspect of the present invention is a terminal device including a receiving unit that receives a DCI format used for scheduling the PUSCH, and a transmitting unit that transmits the PUSCH. The target coding rate is determined based at least on the value of the MCS field included in the DCI format. When the PUSCH is arranged in a plurality of slots, the size of the transport block included in the PUSCH is determined based at least on the target coding rate and a first operator. When the PUSCH is arranged in one slot, the size of the transport block included in the PUSCH is determined based at least on the target coding rate, and the first operator is not used for determining the size of the transport block.

[0471] (6) Also, in the second aspect of the present invention, when the PUSCH is arranged in a plurality of slots, the size of the transport block is set such that it is larger than the size of the transport block when the PUSCH is arranged in one slot for the first operator.

[0472] (7) Also, in the second aspect of the present invention, when the PUSCH is scheduled by a random access response, the first operator is not used to determine the size of the transport block regardless of whether the PUSCH is arranged in the plurality of slots.

[0473] (8) Also, in the second aspect of the present invention, the first operator is a value multiplied by some or all of the values of N RE , N a RE , N RB sc , N sh symb , N PRB DMRS , N PRB oh , N info , N a info , and, N TBS and is a value greater than 1.

[0474] (9) Also, in the second aspect of the present invention, the first operator is indicated by the DCI format, and the number of the plurality of slots is determined based at least on the first operator.

[0475] (10) Also, in the second aspect of the present invention, when the PUSCH is arranged in a plurality of slots, the first operator is determined based at least on the number of the plurality of slots.

[0476] (11) Further, a third aspect of the present invention is a terminal device, comprising a receiving unit that receives a DCI format used for scheduling one or more PUSCHs, and a transmitting unit that transmits the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in a first set of the plurality of slots, the first set includes slots from the first slot at the head of the plurality of slots to the Xth slot, and the DMRS is not arranged in slots other than the first set among the plurality of slots. The terminal device determines the value of X based on at least 1) a signal from a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of the OFDM symbol in which the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0477] (12) Further, a fourth aspect of the present invention is a terminal device, comprising a receiving unit that receives a DCI format used for scheduling one or more PUSCHs, and a transmitting unit that transmits the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in a slot with an index i that satisfies mod(i,X)=n among the plurality of slots, and the DMRS is not arranged in a slot with an index i that does not satisfy mod(i,X)=n. The index i is 1) an index of a slot in a radio frame or 2) an index in the plurality of slots, and n is an integer. The terminal device determines the value of X based on at least 1) a signal from a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of the OFDM symbol in which the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0478] (13) Further, a fifth aspect of the present invention is a base station apparatus, comprising a transmission unit that transmits a DCI format used for scheduling of PUSCH, and a reception unit that receives the PUSCH in a plurality of slots, wherein the size of the transport block is given based on a target coding rate indicated by the DCI format, the target coding rate is 1 or more, the effective coding rate of the PUSCH is 1 or less, and the effective coding rate is a value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.

[0479] (14) Further, in the fifth aspect of the present invention, the DCI format indicates an index, and in a first case, a target coding rate is given based on a first MCS table and the index, and in a second case, a target coding rate is given based on a second MCS table and the index, all target coding rates included in the first MCS table are 1 or less, and at least one of the target coding rates included in the second MCS table is 1 or more.

[0480] (15) Further, in the fifth aspect of the present invention, the DCI format indicates an index, and the terminal device selects one MCS table from a set of MCS tables including at least a first MCS table and a second MCS table, determines a target coding rate based on the one MCS table and the index, all target coding rates included in the first MCS table are 1 or less, and at least one of the target coding rates included in the second MCS table is 1 or more.

[0481] (16) Also, in the fifth aspect of the present invention, the first MCS table is an MCS table including at least 64QAM, at least one of the target coding rates included in the second MCS table is 1 or more, in the third case, a target coding rate is given based on the third MCS table and the index, the third MCS table is an MCS table including at least 256QAM, in the first case, the CRC added to the DCI format is scrambled by the C-RNTI, the signal waveform of the PUSCH is DFT-S-OFDM, the RRC parameter indicating the third MCS table is not set, and the PUSCH is arranged in one slot, in the second case, the CRC added to the DCI format is scrambled by the C-RNTI, the signal waveform of the PUSCH is the DFT-S-OFDM, and the PUSCH is arranged in a plurality of slots, in the third case, the CRC added to the DCI format is scrambled by the C-RNTI, the signal waveform of the PUSCH is the DFT-S-OFDM, the RRC parameter indicating the third MCS table is set, and the PUSCH is arranged in the one slot.

[0482] (17) Also, the sixth aspect of the present invention is a base station apparatus, including a transmission unit that transmits a DCI format used for scheduling of the PUSCH, and a reception unit that receives the PUSCH, the target coding rate is determined based at least on the value of the MCS field included in the DCI format, when the PUSCH is arranged in a plurality of slots, the size of the transport block included in the PUSCH is determined based at least on the target coding rate and the first operator, when the PUSCH is arranged in one slot, the size of the transport block included in the PUSCH is determined based at least on the target coding rate, and the first operator is not used for determining the size of the transport block.

[0483] (18) Also, in the sixth aspect of the present invention, the first operator is set such that when the PUSCH is arranged in a plurality of slots, the size of the transport block is larger than the size of the transport block when the PUSCH is arranged in one slot.

[0484] (19) Also, in the sixth aspect of the present invention, when the PUSCH is scheduled by a random access response, the first operator is not used to determine the size of the transport block regardless of whether the PUSCH is arranged in the plurality of slots.

[0485] (20) Also, in the sixth aspect of the present invention, the first operator is N RE , N a RE , N RB sc , N sh symb , N PRB DMRS , N PRB oh , N info , N a info , and, a value multiplied by some or all of the values of N TBS and the first operator is greater than 1.

[0486] (21) Also, in the sixth aspect of the present invention, the first operator is indicated by the DCI format, and the number of the plurality of slots is determined based at least on the first operator.

[0487] (22) Also, in the sixth aspect of the present invention, when the PUSCH is arranged in a plurality of slots, the first operator is determined based at least on the number of the plurality of slots.

[0488] (23) Further, a seventh aspect of the present invention is a base station apparatus, comprising a transmission unit that transmits a DCI format used for scheduling one or more PUSCHs, and a reception unit that receives the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in a first set of the plurality of slots, the first set includes slots from the first slot at the head of the plurality of slots to the Xth slot, and the DMRS is not arranged in slots other than the first set among the plurality of slots. The terminal device determines the value of X based on at least 1) a signal of a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of the OFDM symbol in which the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0489] (24) Further, an eighth aspect of the present invention is a base station apparatus, comprising a transmission unit that transmits a DCI format used for scheduling one or more PUSCHs, and a reception unit that receives the one or more PUSCHs in a plurality of slots, wherein DMRS related to any one or all of the one or more PUSCHs is arranged in slots with an index i that satisfies mod(i,X)=n among the plurality of slots, and the DMRS is not arranged in slots with an index i that does not satisfy mod(i,X)=n. The index i is 1) an index of a slot in a radio frame or 2) an index in the plurality of slots, and n is an integer. The terminal device determines the value of X based on at least 1) a signal of a higher layer, 2) the DCI format, or the number of the plurality of slots. In the slot where the DMRS is arranged, the pattern of the OFDM symbol in which the DMRS is arranged is given based on the time-domain PUSCH resource allocation information included in the DCI format.

[0490] The base station apparatus 3 and the program operating on the terminal apparatus 1 according to one aspect of the present invention may be a program (a program for operating a computer) that controls a CPU (Central Processing Unit) or the like so as to realize the functions of the above-described embodiment according to one aspect of the present invention. And the information handled by these apparatuses is temporarily stored in a RAM (Random Access Memory) during its processing, and then stored in various ROMs such as a Flash ROM (Read Only Memory) or an HDD (Hard Disk Drive), and read by the CPU as necessary, and corrected and written.

[0491] In addition, a part of the terminal apparatus 1 and the base station apparatus 3 in the above-described embodiment may be realized by a computer. In that case, a program for realizing this control function may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read into a computer system and executed to realize it.

[0492] Here, the “computer system” means a computer system built in the terminal apparatus 1 or the base station apparatus 3 and includes hardware such as an OS and peripheral devices. Further, the “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a portable medium such as a CD-ROM, or a storage device such as a hard disk built in a computer system.

[0493] Furthermore, the “computer-readable recording medium” also includes a communication line such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, which holds the program dynamically for a short time, and a volatile memory inside a computer system that becomes a server or a client in that case, which holds the program for a certain period of time. Also, the above program may be for realizing a part of the above-described functions, and may further be realized in combination with a program already recorded in the computer system for realizing the above-described functions.

[0494] In addition, the base station apparatus 3 in the above-described embodiment can also be realized as an aggregate (apparatus group) composed of a plurality of apparatuses. Each of the apparatuses constituting the apparatus group may include some or all of each function or each functional block of the base station apparatus 3 related to the above-described embodiment. As long as the apparatus group has all the functions or functional blocks of the base station apparatus 3, it is sufficient. Further, the terminal apparatus 1 related to the above-described embodiment can also communicate with the base station apparatus as an aggregate.

[0495] In addition, the base station apparatus 3 in the above-described embodiment may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or an NG-RAN (NextGen RAN, NR RAN). Further, the base station apparatus 3 in the above-described embodiment may have some or all of the functions of the upper node with respect to the eNodeB and / or the gNB.

[0496] In addition, the terminal apparatus 1, a part, or all of the base station apparatus 3 in the above-described embodiment may typically be realized as an LSI which is an integrated circuit, or may be realized as a chipset. Each functional block of the terminal apparatus 1 and the base station apparatus 3 may be individually chipified, or some or all of them may be integrated and chipified. Further, the method of integrating into an integrated circuit is not limited to an LSI, and it may be realized by a dedicated circuit or a general-purpose processor. Also, when a technology for integrating into an integrated circuit that replaces the LSI appears due to the progress of semiconductor technology, it is also possible to use the integrated circuit based on the technology.

[0497] In addition, in the above-described embodiment, a terminal apparatus is described as an example of the communication apparatus. However, the invention of the present application is not limited thereto, and it can also be applied to stationary or non-mobile electronic devices installed indoors and outdoors, for example, terminal apparatuses or communication apparatuses such as AV devices, kitchen devices, cleaning / washing devices, air conditioning devices, office devices, vending machines, and other living devices.

[0498] As described above in detail with reference to the drawings regarding the embodiments of the present invention, the specific configuration is not limited to this embodiment, and also includes design changes and the like within the scope not departing from the gist of the present invention. Further, one aspect of the present invention can be variously modified within the scope shown in the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. Also included is a configuration in which elements described in the above embodiments and having the same effects are replaced with each other.

Industrial Applicability

[0499] One aspect of the present invention can be used, for example, in a communication system, communication equipment (e.g., a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (e.g., a communication chip), or a program.

Explanation of Signs

[0500] 1 (1A, 1B, 1C) Terminal device 3 Base station device 10, 30 Radio transmission / reception unit 11, 31 Antenna unit 12, 32 RF unit 13, 33 Baseband unit 14, 34 Upper layer processing unit 15, 35 Medium access control layer processing unit 16, 36 Radio resource control layer processing unit 91, 92, 93, 94 Search area set 300 Component carrier 301 Primary cell 302, 303 Secondary cell 3000 Point 3001, 3002 Resource grid 3003, 3004 BWP 3011, 3012, 3013, 3014 Offset 3100, 3200 Common resource block set

Claims

1. A receiving unit that receives a downlink control information format for scheduling a physical uplink shared channel (PUSCH); A transmitting unit that transmits the PUSCH; comprising: The size of the transport block transmitted in the PUSCH is N ＲＥ = X * min(156, N ａ ＲＥ ) * n ＰＲＢ is determined by The N ａ ＲＥ is ＲＢ ｓｃ * N ｓｈ ｓｙｍｂ - N ＰＲＢ ＤＭＲＳ - N ＰＲＢ ｏｈ is determined by The n ＰＲＢ is the number of PRBs allocated to the PUSCH, The N ＲＢ ｓｃ is the number of resource blocks per subcarrier, The N ｓｈ ｓｙｍｂ is the number of OFDM symbols allocated to the PUSCH in a period, The N ＰＲＢ ＤＭＲＳ is the number of resource elements allocated to DMRS for 1 PRB, The N ＰＲＢ ｏｈ is a value considering the overhead caused by elements other than DMRS for PUSCH, and is indicated by a first RRC parameter, The X is a value that controls the size of the transport block and is provided by a second RRC parameter, A terminal device.

2. When the period for which one RV is allocated is greater than 1 slot, the size is N ＲＥ = X * min(156, N ａ ＲＥ ) * n ＰＲＢ is determined by When the period is 1, the size is N ＲＥ = min(156, N ａ ＲＥ ) * n ＰＲＢ is determined by The terminal device according to claim 1.

3. A transmitting unit that transmits a downlink control information format for scheduling a physical uplink shared channel (PUSCH), A receiving unit that receives the PUSCH, comprising The size of the transport block received in the PUSCH is N ＲＥ = X * min(156, N ａ ＲＥ ) * n ＰＲＢ is determined by The N ａ ＲＥ is ＲＢ ｓｃ * N ｓｈ ｓｙｍｂ - N ＰＲＢ ＤＭＲＳ - N ＰＲＢ ｏｈ is determined by The n ＰＲＢ is the number of PRBs allocated to the PUSCH, The N ＲＢ ｓｃ is the number of resource blocks per subcarrier, The N ｓｈ ｓｙｍｂ is the number of OFDM symbols allocated to the PUSCH in the period, The N ＰＲＢ ＤＭＲＳ is the number of resource elements allocated to the DMRS for 1 PRB, The N ＰＲＢ ｏｈ is a value that takes into account the overhead caused by elements other than DMRS for PUSCH, and is indicated by a first RRC parameter, wherein said X is a value that controls the size of a transport block and is provided by a second RRC parameter, Base station apparatus. Claim 4 A communication method used in a terminal device, a receiving process of receiving a downlink control information format for scheduling a physical uplink shared channel (PUSCH), a transmitting process of transmitting the PUSCH, and having the size of a transport block transmitted in the PUSCH is N ＲＥ = X * min(156, N ａ ＲＥ ) * n ＰＲＢ is determined by wherein said N ａ ＲＥ is ＲＢ ｓｃ * N ｓｈ ｓｙｍｂ - N ＰＲＢ ＤＭＲＳ - N ＰＲＢ ｏｈ is determined by wherein said n ＰＲＢ is the number of PRBs allocated to the PUSCH, wherein said N ＲＢ ｓｃ is the number of resource blocks per subcarrier, wherein said N ｓｈ ｓｙｍｂ is the number of OFDM symbols allocated to the PUSCH in a period, wherein said N ＰＲＢ ＤＭＲＳ is the number of resource elements allocated to DMRS for 1 PRB, wherein said N ＰＲＢ ｏｈis a value that takes into account the overhead caused by elements other than DMRS for PUSCH, and is indicated by a first RRC parameter, wherein said X is a value that controls the size of a transport block and is provided by a second RRC parameter, Communication method.

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