Terminal device, base station device, and communication method

Abstract

The present invention is provided with: a reception unit that receives a first PDCCH in which a first DCI is disposed and a second PDCCH in which a second DCI for scheduling a PUSCH is disposed; and a transmission unit that transmits the PUSCH, the first DCI indicating both a first TCI state and a second TCI state, the first TCI state and the second TCI state being TCI states for at least an uplink channel / signal, the second DCI giving any one of a first instruction, a second instruction, and a third instruction, and when the second DCI gives the first instruction, the transmission unit transmits the PUSCH. The PUSCH is associated with the first TCI state when the first DCI gives the first indication, the PUSCH is associated with the first TCI state when the second DCI gives the second indication, the PUSCH is associated with the second TCI state when the second DCI gives the second indication, and the PUSCH is associated with the first TCI state and the second TCI state when the second DCI gives the third indication.

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. 2022-123072 filed in Japan on August 2, 2022, and the contents are incorporated herein by reference. Background Art

[0002] In the Third Generation Partnership Project (3GPP: rd In the LTE (Global Network Operations Framework) project, the Wireless Access Method and the Wireless Network (hereinafter also referred to as "Long Term Evolution (LTE)" or "Evolved Universal Terrestrial Radio Access (EUTRA)") of cellular mobile communications were studied. In LTE, the base station device is also called eNodeB (evolved NodeB), and the terminal device is also called UE (User Equipment). LTE is a cellular communication system that configures the area covered by multiple base station devices in a cell shape. A single base station device can manage multiple service cells.

[0003] In 3GPP, the next generation standard (NR: New Radio) was studied in order to make recommendations to IMT (International Mobile Telecommunication)-2020, which is the next generation mobile communication system standard established by the International Telecommunication Union (ITU) (Non-patent document 1). NR is required to meet the requirements of the following three scenarios in a single technical framework: eMBB (enhanced Mobile BroadBand), mMTC (massive Machine Type Communication), and URLLC (Ultra Reliable and Low Latency Communication).

[0004] In 3GPP, research is being conducted on the extension of services supported by NR (Non-Patent Document 2). Prior art literature Non-patent literature

[0005] Non-patent document 1: “New SID proposal: Study on New Radio Access Technology”, RP-160671, NTT docomo, 3GPP TSG RAN Meeting #71, Goteborg, Sweden, 7th-10th March, 2016. Non-Patent Document 2: “Release 17 package for RAN”, RP-193216, RAN chairman, RAN1 chairman, RAN2 chairman, RAN3 chairman, 3GPP TSG RAN Meeting #86, Sitges, Spain, 9th-12th December, 2019 Summary of the invention Problem that the invention aims to solve

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

[0007] (1) The first scheme of the present invention is a terminal device, the terminal device comprising: a receiving unit, receiving a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and a sending unit, sending the PUSCH, the first DCI indicates both a first TCI state and a second TCI state, the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, the second DCI gives any one of a first indication, a second indication and a third indication, when the second DCI gives the first indication, the PUSCH is associated with the first TCI state, when the second DCI gives the second indication, the PUSCH is associated with the second TCI state, and when the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state.

[0008] (2) In addition, the second scheme of the present invention is a base station device, the base station device comprising: a sending unit, sending a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and a receiving unit, receiving the PUSCH, the first DCI indicates both a first TCI state and a second TCI state, both the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, the second DCI gives any one of a first indication, a second indication and a third indication, when the second DCI gives the first indication, the PUSCH is associated with the first TCI state, when the second DCI gives the second indication, the PUSCH is associated with the second TCI state, and when the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state.

[0009] (3) In addition, the third scheme of the present invention is a communication method for a terminal device, the communication method comprising: a step of receiving a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and a step of sending the PUSCH, the first DCI indicates both a first TCI state and a second TCI state, the first TCI state and the second TCI state are TCI states for at least uplink channels / signals, the second DCI gives any one of a first indication, a second indication and a third indication, when the second DCI gives the first indication, the PUSCH is associated with the first TCI state, when the second DCI gives the second indication, the PUSCH is associated with the second TCI state, and when the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state.

[0010] (4) In addition, the fourth scheme of the present invention is a communication method for a base station device, the communication method comprising: a step of sending a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and a step of receiving the PUSCH, wherein the first DCI indicates both a first TCI state and a second TCI state, both the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, and the second DCI gives any one of a first indication, a second indication, and a third indication, and when the second DCI gives the first indication, the PUSCH is associated with the first TCI state, and when the second DCI gives the second indication, the PUSCH is associated with the second TCI state, and when the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state. Beneficial Effects

[0011] According to one aspect of the present invention, a terminal device can efficiently communicate. In addition, a base station device can efficiently communicate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment. Figure 2 is a subcarrier spacing setting μ, the number of OFDM symbols per time slot N, and slot symb And an example of the relationship between CP (cyclic prefix) settings. Figure 3 This is a diagram showing an example of a resource grid configuration method according to one aspect of the present embodiment. Figure 4 This is a diagram showing a configuration example of a resource grid 3001 according to one aspect of the present embodiment. Figure 5 It is a schematic block diagram showing a configuration example of the base station device 3 according to one aspect of the present embodiment. Figure 6 It is a schematic block diagram showing a configuration example of the terminal device 1 according to one aspect of the present embodiment. Figure 7 This is a diagram showing an example configuration of an SS / PBCH block according to one scenario of the present embodiment. Figure 8 This is a diagram showing an example of monitoring opportunities of a search area set according to one scenario of the present embodiment. Fig. 91 is a diagram showing an example of an activation command A according to one aspect of the present embodiment. Fig.10 1 is a diagram showing an example of an activation command B according to one aspect of the present embodiment. Fig.11 FIG. 1 is a diagram showing an example of an activation command C according to one aspect of the present embodiment. Fig.12 1 is a diagram showing an example of an activation command D according to one aspect of the present embodiment. Fig.13 1 is a diagram showing an example of an activation instruction E according to one aspect of the present embodiment. Fig.14 This is a diagram showing an example of switching of the TCI state according to one scheme of the present embodiment. DETAILED DESCRIPTION

[0013] Hereinafter, embodiments of the present invention will be described.

[0014] floor(C) may be a floor function for a 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 a ceiling function for a real number D. For example, ceil(D) may be a function that outputs the smallest integer within a range not less than D. mod(E, F) may be a function that outputs the remainder obtained by dividing E by F. mod(E, F) may also be a function that outputs a value corresponding to the remainder obtained by dividing E by F. exp(G) = e^G. Here, e is the Napier number. H^I represents H raised to the power of I. max(J, K) is a function that outputs the maximum value between J and K. 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 maximum value between L and M. 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 closest to N. "·" indicates multiplication.

[0015] In a wireless communication system of one scheme of the present embodiment, at least OFDM (Orthogonal Frequency Division Multiplex) is used. OFDM symbol is the unit of time domain of OFDM. OFDM symbol includes at least one or more subcarriers. OFDM symbol is converted into a time-continuous signal in baseband signal generation. At least CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplex) is used in the downlink. In the uplink, either CP-OFDM or DFT-s-OFDM (Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplex) is used. DFT-s-OFDM can be given by applying transform precoding to CP-OFDM.

[0016] The OFDM symbol may be a name including the CP added to the OFDM symbol. That is, a certain OFDM symbol may be constructed to include the certain OFDM symbol and the CP added to the certain OFDM symbol.

[0017] Figure 1 FIG. 1 is a conceptual diagram of a wireless communication system according to one embodiment of the present invention. Figure 1 In the wireless communication system, the wireless communication system includes at least terminal devices 1A to 1C and a base station device 3 (BS#3: Base station #3). Hereinafter, the terminal devices 1A to 1C are also referred to as terminal device 1 (UE#1: User Equipment #1).

[0018] The base station device 3 may be configured to include one or more transmission devices (or transmission points, transceiver devices, or transceiver points). When the base station device 3 is configured to include multiple transmission devices, the multiple transmission devices may be respectively arranged at different positions.

[0019] The base station device 3 may provide one or more serving cells. A serving cell may be defined as a collection of resources used for wireless communication. In addition, a serving cell is also referred to as a cell.

[0020] The serving cell may be configured to include one or both of a downlink component carrier (downlink carrier) and an uplink component carrier (uplink carrier). The serving cell may also be configured to include one or both of more than two downlink component carriers and more than two uplink component carriers. The downlink component carrier and the uplink component carrier are collectively referred to as component carriers (carriers).

[0021] For example, one resource grid may be provided for each component carrier. In addition, one resource grid may be provided for each set of a component carrier and a subcarrier spacing configuration μ. Here, the subcarrier spacing configuration μ is also referred to as a numerology. For example, one resource grid may be provided for a set of an antenna port p, a subcarrier spacing configuration μ, and a transmission direction x.

[0022] The resource grid includes N size,μ grid,x N RB sc subcarriers. The resource grid is composed of a common resource block N start,μ grid,x In addition, the public resource block N start,μ grid,x Also called the reference point of the resource grid.

[0023] The resource grid includes N subframe,μ symb OFDM symbols.

[0024] The subscript x added to the parameter associated with the resource grid indicates the transmission direction. For example, the subscript x may be used to indicate either a downlink or an uplink.

[0025] N size,μ grid,x The offset setting is indicated by the parameter provided by the RRC layer (for example, the parameter CarrierBandwidth). start,μ grid,x The bandwidth setting is represented by a parameter (e.g., parameter OffsetToCarrier) provided by the RRC layer. The offset setting and the bandwidth setting are settings for configuring an SCS-specific carrier.

[0026] For a certain subcarrier spacing setting μ, the subcarrier spacing (SCS: SubCarrier Spacing) Δf can be Δf=2 μ ·15kHz. The subcarrier spacing setting μ can represent any one of 0, 1, 2, 3 or 4.

[0027] Figure 2 is a setting μ of the subcarrier spacing and the number N of OFDM symbols per time slot according to one embodiment of the present invention. slot symb And an example of the relationship between CP (cyclic prefix) settings. Figure 2 In A, for example, when the subcarrier spacing μ is set to 2 and the CP is set to a normal cyclic prefix (CP), N slot symb =14, N frame,μ slot =40, N subframe,μ slot =4. In addition, Figure 2 In B, for example, when the subcarrier spacing μ is set to 2 and the CP is set to an extended CP (extended cyclic prefix), N slot symb =12, N frame,μ slot =40, N subframe,μ slot =4.

[0028] Time unit (time unit) T c Can be used to indicate the length of the time domain. Time unit T c It is T c =1 / (Δf max ·N f ). Δf max =480kHz. f =4096. The constant κ is κ = Δf max ·N f / (Δf ref N f，ref )=64. Δf ref is 15kHz. f，ref It is 2048.

[0029] The transmission of the signal in the downlink and / or the transmission of the signal in the uplink may be performed by a transmission of length T f The wireless frames (system frames, frames) are organized into (organized into). f =(Δf max N f / 100)·T s = 10ms. The radio frame consists of 10 subframes. The length of the subframe is T sf =(Δf max N f / 1000)·T s =1ms. The number of OFDM symbols in each subframe is N subframe,μ symb =N slot symb N subframe,μ slot .

[0030] The OFDM symbol is a unit of the time domain of a communication method. For example, the OFDM symbol can be a unit of the time domain of CP-OFDM. In addition, the OFDM symbol can be a unit of the time domain of DFT-s-OFDM.

[0031] A time slot can be constructed to include multiple OFDM symbols. For example, a time slot can be composed of N consecutive OFDM symbols. slot symb OFDM symbols. For example, in a conventional CP setting, it can be N slot symb =14. In addition, in the conventional CP setting, N slot symb =12.

[0032] The number and index of the time slots included in the subframe can be given for setting μ for a certain subcarrier spacing. For example, the time slot index n μ s In the subframe, it can be subframe,μ slot -1 in ascending order. The number and index of the time slots included in the radio frame can also be given for setting the subcarrier spacing μ. In addition, the time slot index n μ s,f It can also be in the wireless frame from 0 to N frame,μ slot Integer values ​​in the range -1 are given in ascending order.

[0033] Figure 3 This is a diagram showing an example of a method of configuring a resource grid according to one aspect of the present embodiment. Figure 3 The horizontal axis represents the frequency domain. Figure 3 , an example of a resource grid configuration of a subcarrier spacing μ1 in component carrier 300 and an example of a resource grid configuration of a subcarrier spacing μ2 in a certain component carrier are shown. In this way, one or more subcarrier spacings can be set for a certain component carrier. Figure 3 In the example, it is assumed that μ1=μ2-1, but the various aspects of the present embodiment are not limited to the condition of μ1=μ2-1.

[0034] Component carrier 300 is a frequency band having a predetermined width in the frequency domain.

[0035] Point 3000 is an identifier for identifying a certain subcarrier. Point 3000 is also referred to as point A. Common resource block (CRB) set 3100 is a set of common resource blocks for the subcarrier spacing setting μ1.

[0036] The common resource block set 3100 includes the common resource blocks of point 3000 ( Figure 3 The black monochrome block in the common resource block set 3100 in FIG. 3 is also referred to as a reference point of the common resource block set 3100 . The reference point of the common resource block set 3100 may also be a common resource block with index 0 in the common resource block set 3100 .

[0037] Offset 3011 is the offset from the reference point of common resource block set 3100 to the reference point of resource grid 3001. Offset 3011 is represented by the number of common resource blocks for the setting μ1 of subcarrier spacing. Resource grid 3001 includes N starting from the reference point of resource grid 3001. size,μ grid1,x A common resource block.

[0038] The offset 3013 is the distance from the reference point of the resource grid 3001 to the reference point (N) of the BWP (BandWidth Part) 3003 of the index i1. start,μ BWP,i1 ) offset.

[0039] The common resource block set 3200 is a set of common resource blocks for the subcarrier spacing setting μ2.

[0040] The common resource block set 3200 includes the common resource blocks of point 3000 ( Figure 3 The black monochrome block in the common resource block set 3200 in FIG. 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 also be the common resource block of index 0 in the common resource block set 3200.

[0041] Offset 3012 is an offset from a reference point of common resource block set 3200 to a reference point of resource grid 3002. Offset 3012 is represented by the number of common resource blocks for subcarrier spacing μ2. Resource grid 3002 includes N size,μ grid2,x A common resource block.

[0042] The offset 3014 is the distance 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 ) offset.

[0043] Figure 4 FIG. 3 is a diagram showing an example of the configuration of a resource grid 3001 according to one embodiment of the present invention. Figure 4 In the resource grid, the horizontal axis is the OFDM symbol index l sym , the vertical axis is the subcarrier index k sc The resource grid 3001 includes N size,μ grid1,x N RB sc subcarriers, including N subframe,μ symb OFDM symbols. Within the resource grid, subcarrier index k sc and OFDM symbol index l sym The identified resource is called a resource element (RE: Resource Element).

[0044] Resource Block (RB) includes N RB sc A resource block is a general term for a common resource block, a physical resource block (PRB) and a virtual resource block (VRB). RB SC =12.

[0045] The resource block unit is a set of resources corresponding to one OFDM symbol in one resource block. That is, one resource block unit includes 12 resource elements corresponding to one OFDM symbol in one resource block.

[0046] The common resource blocks for a certain subcarrier spacing setting μ are indexed in ascending order starting from 0 in the frequency domain in a certain common resource block set. The common resource blocks with index 0 for a certain subcarrier spacing setting μ include (or contend for, or agree on) point 3000. The index n of the common resource blocks for a certain subcarrier spacing setting μ is μ CRB Satisfy n μ CRB =ceil(k sc / N RB sc ). Here, k sc The subcarrier with =0 is a subcarrier having the same center frequency as the center frequency of the subcarrier corresponding to point 3000.

[0047] The physical resource blocks for a certain subcarrier spacing setting μ are indexed in ascending order starting from 0 in the frequency domain in a certain BWP. The index n of the physical resource block for a certain subcarrier spacing setting μ is μ PRB Satisfy n μ CRB =n μ PRB +N start ,μ BWP,i Here, N start,μ BWP,i Represents the reference point of the BWP with index i.

[0048] BWP is defined as a subset of common resource blocks included in the resource grid. BWP includes a reference point N from the BWP. start,μ BWP,i Starting N size,μ BWP,i Common resource blocks. The BWP set for a downlink carrier is also called a downlink BWP. The BWP set for an uplink component carrier is also called an uplink BWP.

[0049] An antenna port may be defined as follows: 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, a channel may correspond to a physical channel. In addition, a symbol may correspond to an OFDM symbol. In addition, a symbol may correspond to a resource block unit. In addition, a symbol may correspond to a resource element.

[0050] The large-scale property of the channel that transmits symbols in one antenna port can be estimated based on the channel that transmits symbols in another antenna port, which is called the two antenna ports are QCL (Quasi Co-Located). Among them, the large-scale property may include at least the long-term property of the channel. The large-scale property may also include at least a part or all of delay spread, Doppler spread, Doppler shift, average gain, average delay and beam parameters (spatial Rx parameters). The beam parameters of the first antenna port and the second antenna port are QCL, which may be that the receiving beam assumed by the receiving side for the first antenna port and the receiving beam assumed by the receiving side for the second antenna port are the same (or corresponding). The beam parameters of the first antenna port and the second antenna port are QCL, which may be that the transmitting beam assumed by the receiving side for the first antenna port and the transmitting beam assumed by the receiving side for the second antenna port are the same (or corresponding). Terminal device 1 may assume that the two antenna ports are QCL when the large-scale characteristics of the channel that transmits symbols at one antenna port can be estimated from the channel that transmits symbols at the other antenna port. The two antenna ports may be QCL, which may also mean assuming that the two antenna ports are QCL.

[0051] The QCL type may be any one of type A, type B, type C, and type D.

[0052] The QCL of two antenna ports being type A may be a first large-scale characteristic of a channel for transmitting symbols at one antenna port, which may be estimated based on a channel for transmitting symbols at another antenna port. The QCL of two antenna ports being type B may be a second large-scale characteristic of a channel for transmitting symbols at one line port, which may be estimated based on a channel for transmitting symbols at another antenna port. The QCL of two antenna ports being type C may be a third large-scale characteristic of a channel for transmitting symbols at one antenna port, which may be estimated based on a channel for transmitting symbols at another antenna port. The QCL of two antenna ports being type D may be a fourth large-scale characteristic of a channel for transmitting symbols at one antenna port, which may be estimated based on a channel for transmitting symbols at another antenna port. The first large-scale characteristic may include all of Doppler shift, Doppler spread, average delay, and delay spread. The second large-scale characteristic may include all of Doppler shift and Doppler spread. The third large-scale characteristic may include all of Doppler shift and average delay. The fourth large-scale characteristic may include spatial reception parameters (information of spatial direction, information of beam). The antenna port of DMRS may be a DMRS port. The antenna port for PTRS may be a PTRS port. The antenna port associated with PTRS may be a PTRS port. The antenna port used for SRS may be an SRS port. The antenna port used for DMRS may be a DMRS port. The antenna port associated with DMRS may be a DMRS port.

[0053] Carrier aggregation may be the use of multiple aggregated service cells for communication. In addition, carrier aggregation may also be the use of multiple aggregated component carriers for communication. In addition, carrier aggregation may also be the use of multiple aggregated downlink component carriers for communication. In addition, carrier aggregation may also be the use of multiple aggregated uplink component carriers for communication.

[0054] Figure 5 1 is a schematic block diagram showing an example of the configuration of a base station device 3 according to one embodiment of the present invention. Figure 5 As shown, the base station device 3 includes at least a part or all of a wireless transceiver unit (physical layer processing unit) 30 and / or an upper layer (Higher layer) processing unit 34. The wireless transceiver unit 30 includes at least an antenna unit 31, an RF (Radio Frequency) unit 32, and a part or all of a baseband unit 33. The upper layer processing unit 34 includes at least a part or all of a media access control layer processing unit 35 and a radio resource control (RRC: Radio Resource Control) layer processing unit 36.

[0055] The wireless transceiver unit 30 includes at least a part or all of the wireless transmission unit 30a and the wireless reception unit 30b. Here, the device configuration of the baseband unit included in the wireless transmission unit 30a and the baseband unit included in the wireless reception unit 30b may be the same or different. In addition, the device configuration of the RF unit included in the wireless transmission unit 30a and the RF unit included in the wireless reception unit 30b may be the same or different. In addition, the device configuration of the antenna unit included in the wireless transmission unit 30a and the antenna unit included in the wireless reception unit 30b may be the same or different.

[0056] For example, the wireless transmission unit 30a may generate and transmit a baseband signal of the PDSCH. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of the PDCCH. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of the PBCH. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of a synchronization signal. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of a PDSCH DMRS. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of a PDCCH DMRS. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of a CSI-RS. For example, the wireless transmission unit 30a may generate and transmit a baseband signal of a DL PTRS.

[0057] For example, the wireless receiving unit 30b may receive PRACH. For example, the wireless receiving unit 30b may also receive and demodulate PUCCH. The wireless receiving unit 30b may also receive and demodulate PUSCH. For example, the wireless receiving unit 30b may also receive PUCCH DMRS. For example, the wireless receiving unit 30b may also receive PUSCH DMRS. For example, the wireless receiving unit 30b may also receive ULPTRS. For example, the wireless receiving unit 30b may also receive SRS.

[0058] The upper layer processing unit 34 outputs the downlink data (transmission block) to the wireless transceiver unit 30 (or the wireless transmission unit 30a). The upper layer processing unit 34 performs processing on the MAC (Medium Access Control) layer, the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the RRC layer.

[0059] The media access control layer processing unit 35 included in the upper layer processing unit 34 performs processing at the MAC layer.

[0060] 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 the RRC parameters based on the RRC message received from the terminal device 1.

[0061] The wireless transceiver 30 (or the wireless transmission unit 30a) performs modulation, coding and other processing. The wireless transceiver 30 (or the wireless transmission unit 30a) generates a physical signal by modulating, coding and generating a baseband signal (converting into a time-continuous signal) the downlink data, and transmits it to the terminal device 1. The wireless transceiver 30 (or the wireless transmission unit 30a) can configure the physical signal to a component carrier and transmit it to the terminal device 1.

[0062] The wireless transceiver 30 (or wireless receiving unit 30b) performs demodulation, decoding and other processing. The wireless transceiver 30 (or wireless receiving unit 30b) separates, demodulates and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 34. The wireless transceiver 30 (or wireless receiving unit 30b) can implement a channel access process before sending the physical signal.

[0063] The RF unit 32 converts (down converts) the signal received via the antenna unit 31 into a baseband signal by orthogonal demodulation, and removes unnecessary frequency components. The RF unit 32 outputs the processed analog signal to the baseband unit.

[0064] The baseband unit 33 converts the analog signal input from the RF unit 32 into a digital signal. The baseband unit 33 removes a portion corresponding to the CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal after the CP is removed, and extracts a signal in the frequency domain.

[0065] The baseband unit 33 performs an inverse fast Fourier transform (IFFT) on the data to generate OFDM symbols, adds a CP to the generated OFDM symbols 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.

[0066] The RF unit 32 uses a low-pass filter to remove unnecessary 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. In addition, the RF unit 32 may also have a function of controlling the transmission power. The RF unit 32 is also called a transmission power control unit.

[0067] One or more serving cells (or component carriers, downlink component carriers, uplink component carriers) may be configured for the terminal device 1 .

[0068] Each serving cell configured for the terminal device 1 may be any one of a PCell (Primary cell), a PSCell (Primary SCG cell), and a SCell (Secondary Cell).

[0069] The PCell is a serving cell included in the MCG (Master Cell Group). The PCell is a cell in which the terminal device 1 performs an initial connection establishment procedure or a connection re-establishment procedure (an already performed cell).

[0070] The PSCell is a serving cell included in an SCG (Secondary Cell Group) and is a serving cell to which the terminal device 1 performs random access.

[0071] The SCell may be included in either the MCG or the SCG.

[0072] A serving cell group (cell group) is a term that includes at least an MCG and an SCG. A serving cell group may include one or more serving cells (or component carriers). One or more serving cells (or component carriers) included in a serving cell group may be used through carrier aggregation.

[0073] 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).

[0074] One of the one or more downlink BWPs set for the serving cell (or downlink component carrier) may be set as an activated downlink BWP (or one downlink BWP may be activated). One of the one or more uplink BWPs set for the serving cell (or uplink component carrier) may be set as an activated uplink BWP (or one uplink BWP may be activated).

[0075] PDSCH, PDCCH and CSI-RS can be received in the activated downlink BWP. Terminal device 1 can attempt to receive PDSCH, PDCCH and CSI-RS in the activated downlink BWP. PUCCH and PUSCH can be sent in the activated uplink BWP. Terminal device 1 can send PUCCH and PUSCH in the activated uplink BWP. The activated downlink BWP and the activated uplink BWP are collectively referred to as the activated BWP.

[0076] PDSCH, PDCCH and CSI-RS may not be received in a downlink BWP other than the activated downlink BWP (inactivated downlink BWP). Terminal device 1 may also attempt to receive PDSCH, PDCCH and CSI-RS in a downlink BWP that is not an activated downlink BWP. PUCCH and PUSCH may not be sent in an uplink BWP that is not an activated uplink BWP (inactivated uplink BWP). Terminal device 1 may not send PUCCH and PUSCH in an uplink BWP that is not an activated uplink BWP. Inactivated downlink BWP and inactivated uplink BWP are collectively referred to as inactivated BWP.

[0077] Downlink BWP switching is a process for deactivating an activated downlink BWP of a certain serving cell and activating any one of the inactivated downlink BWPs of the certain serving cell. Downlink BWP switching can be controlled by the BWP field included in the downlink control information. Downlink BWP switching can also be controlled based on upper layer parameters.

[0078] The uplink BWP switching is used to deactivate an activated uplink BWP and activate any of the inactivated uplink BWPs that are not the activated uplink BWP. The uplink BWP switching can be controlled by the BWP field included in the downlink control information. The uplink BWP switching can also be controlled based on the parameters of the upper layer.

[0079] Two or more downlink BWPs among one or more downlink BWPs set for the serving cell may not be set as the activated downlink BWPs. Alternatively, one downlink BWP may be activated for the serving cell at a certain time.

[0080] Two or more uplink BWPs among one or more uplink BWPs configured for the serving cell may not be configured as activated uplink BWPs. One uplink BWP may be activated for the serving cell at a certain time.

[0081] Figure 6 1 is a schematic block diagram showing an example of the configuration of a terminal device 1 according to one embodiment of the present invention. Figure 6 As shown, the terminal device 1 includes at least one or all of a wireless transceiver unit (physical layer processing unit) 10 and an upper layer processing unit 14. The wireless transceiver 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 media access control layer processing unit 15 and a wireless resource control layer processing unit 16.

[0082] The wireless transceiver 10 includes at least a part or all of a wireless transmitting unit 10a and a wireless receiving unit 10b. Here, the device configuration of the baseband unit 13 included in the wireless transmitting unit 10a and the baseband unit 13 included in the wireless receiving unit 10b may be the same or different. In addition, the device configuration of the RF unit 12 included in the wireless transmitting unit 10a and the RF unit 12 included in the wireless receiving unit 10b may be the same or different. In addition, the device configuration of the antenna unit 11 included in the wireless transmitting unit 10a and the antenna unit 11 included in the wireless receiving unit 10b may be the same or different.

[0083] For example, the wireless transmission unit 10a may generate and transmit a baseband signal of PRACH. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of PUCCH. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of PUSCH. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of PUCCH DMRS. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of PUSCH DMRS. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of ULPTRS. For example, the wireless transmission unit 10a may generate and transmit a baseband signal of SRS.

[0084] For example, the wireless receiving unit 10b may receive and demodulate the PDSCH. For example, the wireless receiving unit 10b may receive and demodulate the PDCCH. For example, the wireless receiving unit 10b may receive and demodulate the PBCH. For example, the wireless receiving unit 10b may receive a synchronization signal. For example, the wireless receiving unit 10b may receive a PDSCH DMRS. For example, the wireless receiving unit 10b may receive a PDCCH DMRS. For example, the wireless receiving unit 10b may receive a CSI-RS. For example, the wireless receiving unit 10b may receive a DLPTRS.

[0085] 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, the packet data convergence protocol layer, the radio link control layer, and the RRC layer.

[0086] The media access control layer processing unit 15 included in the upper layer processing unit 14 performs processing at the MAC layer.

[0087] 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 the RRC parameters based on the RRC message received from the base station device 3.

[0088] The wireless transceiver 10 (or the wireless transmission unit 10a) performs modulation, coding and other processing. The wireless transceiver 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 10 (or the wireless transmission unit 10a) can configure the physical signal to a certain BWP (activate the uplink BWP) and transmit it to the base station device 3.

[0089] The wireless transceiver 10 (or wireless receiving unit 10b) performs demodulation, decoding and other processing. The wireless transceiver 10 (or wireless receiving unit 30b) can receive a physical signal in a certain BWP (activated downlink BWP) of a certain serving cell. The wireless transceiver 10 (or wireless receiving 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 10 (wireless receiving unit 10b) can implement a channel access process before sending a physical signal.

[0090] The RF unit 12 converts the signal received by the antenna unit 11 into a baseband signal by orthogonal demodulation (down conversion) and removes unnecessary frequency components. The RF unit 12 outputs the processed analog signal to the baseband unit 13 .

[0091] The baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal. The baseband unit 13 removes a portion corresponding to a CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal after the CP is removed, and extracts a signal in the frequency domain.

[0092] The baseband unit 13 performs an inverse fast Fourier transform (IFFT) on the uplink data to generate OFDM symbols, adds a CP to the generated OFDM symbols 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.

[0093] The RF unit 12 uses a low-pass filter to remove unnecessary frequency components from the analog signal input from the baseband unit 13, up-converts the analog signal into a carrier frequency, and transmits it via the antenna unit 11. In addition, the RF unit 12 may also have a function of controlling the transmission power. The RF unit 12 is also called a transmission power control unit.

[0094] The following describes the physical signal (signal).

[0095] Physical signal is the general term for downlink physical channel, downlink physical signal, uplink physical channel and uplink physical channel. Physical channel is the general term for downlink physical channel and uplink physical channel. Physical signal is the general term for downlink physical signal and uplink physical signal. Physical signal can also be called reference signal.

[0096] An uplink physical channel may correspond to a set of resource elements used to transmit information generated in an upper layer. An uplink physical channel may be a physical channel used in an uplink component carrier. An uplink physical channel may be transmitted by a terminal device 1. An uplink physical channel may be received by a base station device 3. In a wireless communication system of one embodiment of the present invention, at least some or all of the following uplink physical channels may be used. PUCCH (Physical Uplink Control CHannel: Physical Uplink Control Channel) PUSCH (Physical Uplink Shared CHannel: Physical Uplink Shared Channel) PRACH (Physical Random Access CHannel)

[0097] PUCCH can be used to send uplink control information (UCI: Uplink Control Information). PUCCH can be sent to deliver, transmit, convey uplink control information. Uplink control information can be mapped to PUCCH. Terminal device 1 can send PUCCH configured with uplink control information. Base station device 3 can receive PUCCH configured with uplink control information.

[0098] The uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) includes at least part or all of the channel state information (CSI: Channel State Information), scheduling request (SR: Scheduling Request), and HARQ-ACK (Hybrid Automatic Repeat request ACKnowledgement: Hybrid Automatic Repeat request ACKnowledgement) information.

[0099] The channel state information is also referred to as a channel state information bit or a channel state information sequence. The scheduling request is also referred to as a scheduling request bit or a scheduling request sequence. The HARQ-ACK information is also referred to as a HARQ-ACK information bit or a HARQ-ACK information sequence.

[0100] The HARQ-ACK information may include at least a HARQ-ACK corresponding to a transport block (TB). HARQ-ACK may represent an ACK (acknowledgement) or a NACK (negative-acknowledgement) corresponding to the transport block. ACK may indicate that the decoding of the transport block has been successfully completed (has been decoded). NACK may indicate that the decoding of the transport block has not been successfully completed (has not been decoded). The HARQ-ACK information may also include a HARQ-ACK codebook containing one or more HARQ-ACK bits.

[0101] A transport block is an information bit sequence delivered from an upper layer. The information bit sequence is also called a bit sequence. The transport block can be distributed via the UL-SCH (UpLink-Shared Channel) of the transport layer.

[0102] The HARQ-ACK for a transport block may be referred to as the HARQ-ACK for the PDSCH. In this case, the "HARQ-ACK for the PDSCH" means the HARQ-ACK for the transport block included in the PDSCH.

[0103] HARQ-ACK may also represent ACK or NACK corresponding to a CBG (Code Block Group) included in a transport block.

[0104] The scheduling request can be used at least to request the resources of the UL-SCH for the initial transmission (new transmission). The scheduling request bit can be used to indicate either a positive SR or a negative SR. The scheduling request bit indicating a positive SR is also referred to as "transmitting a positive SR". A positive SR can indicate that the resources of the UL-SCH for the initial transmission are requested by the terminal device 1. A positive SR can also indicate that the scheduling request is triggered by an upper layer. In the case of indicating that the scheduling request is sent by the upper layer, a positive SR can be transmitted. The scheduling request bit indicating a negative SR is also referred to as "a negative SR is sent". A negative SR can indicate that the resources of the UL-SCH for the initial transmission are not requested by the terminal device 1. A negative SR can also indicate that the scheduling request is not triggered by the upper layer. A negative SR can be transmitted without indicating that the scheduling request is sent by the upper layer.

[0105] The channel state information may include at least a part or all of a channel quality indicator (CQI: Channel Quality Indicator), a precoding matrix indicator (PMI: Precoder Matrix Indicator) and a rank indicator (RI: Rank Indicator). CQI is an indicator associated with the quality of a transmission path (e.g., transmission strength) or the quality of a physical channel, and PMI is an indicator associated with precoding. RI is an indicator associated with a transmission rank (or number of transmission layers).

[0106] The channel state information is an indicator of the reception state of a physical signal (e.g., CSI-RS) at least used for channel measurement. The value of the channel state information can be determined by the terminal device 1 based on the reception state assumed by the physical signal at least used for channel measurement. Channel measurement can include interference measurement.

[0107] PUCCH may correspond to a PUCCH format. PUCCH may be a set of resource elements used to transmit a PUCCH format. PUCCH may include a PUCCH format. PUCCH may be sent in a certain PUCCH format. It should be noted that a PUCCH format may be interpreted as an information format. In addition, a PUCCH format may also be interpreted as an information set set in a certain information format.

[0108] PUSCH can also be used to transmit one or both of a transport block and uplink control information. A transport block can be configured in PUSCH. A transport block distributed by UL-SCH can be configured in PUSCH. Uplink control information can be configured in PUSCH. Terminal device 1 can send a PUSCH configured with one or both of a transport block and uplink control information. Base station device 3 can receive a PUSCH configured with one or both of a transport block and uplink control information.

[0109] PRACH may also be sent to deliver a random access preamble. Terminal device 1 may send PRACH. Base station device 3 may receive PRACH. PRACH sequence x u,v (n) by x u,v (n) = x u (mod(n+C v , L RA )) is defined. Among them, x u is a ZC (Zadoff Chu) sequence. In addition, x u You can use x u =exp(-jπui(i+1) / L RA ). j is an imaginary unit. In addition, π is the circumference of a circle. In addition, C v corresponds to the cyclic shift of the PRACH sequence. RA Corresponds to the length of the PRACH sequence. In addition, L RA is 839 or 139. In addition, i is 0 to L RA An integer in the range of -1. In addition, u is the sequence index of the PRACH sequence.

[0110] 64 random access preambles are defined for each PRACH opportunity. The random access preamble is based on the cyclic shift C of the PRACH sequence. v The index may be added to each of the determined 64 random access preambles.

[0111] An uplink physical signal may correspond to a set of resource elements. An uplink physical signal may not be used to transmit information generated in an upper layer. It should be noted that an uplink physical signal may also be used to transmit information generated in a physical layer. An uplink physical signal may be a physical signal used in an uplink component carrier. The terminal device 1 may send an uplink physical signal. The base station device 3 may receive an uplink physical signal. In a wireless communication system of one embodiment of the present invention, 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)

[0112] UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.

[0113] The set of antenna ports for DMRS for PUSCH (DMRS associated with PUSCH, DMRS included in PUSCH, DMRS corresponding to PUSCH) may be given based on the set of antenna ports for the PUSCH. For example, the set of antenna ports for DMRS for PUSCH may be the same as the set of antenna ports for the PUSCH.

[0114] The transmission of a PUSCH and the transmission of a DMRS for the PUSCH may be represented (or scheduled) by one DCI format. The PUSCH and the DMRS for the PUSCH may be collectively referred to as a PUSCH. Transmitting a PUSCH may also be transmitting a PUSCH and a DMRS for the PUSCH.

[0115] The propagation path of the PUSCH can be estimated based on the DMRS used for the PUSCH.

[0116] The set of antenna ports for the DMRS of the PUCCH (DMRS associated with the PUCCH, DMRS included in the PUCCH, DMRS corresponding to the PUCCH) may be the same as the set of antenna ports of the PUCCH.

[0117] The transmission of the PUCCH and the transmission of the DMRS for the PUCCH may be indicated (or triggered) by a DCI format. One or both of the mapping of the PUCCH to resource elements and the mapping of the DMRS for the PUCCH to resource elements may be provided in a PUCCH format. The PUCCH and the DMRS for the PUCCH may be collectively referred to as the PUCCH. Transmitting the PUCCH may also be transmitting the PUCCH and the DMRS for the PUCCH.

[0118] The propagation path of the PUCCH can be estimated by the DMRS used for the PUCCH.

[0119] A downlink physical channel may correspond to a set of resource elements that transmit information generated in an upper layer. A downlink physical channel may be a physical channel used in a downlink component carrier. The base station device 3 may transmit a downlink physical channel. The terminal device 1 may receive a downlink physical channel. In a wireless communication system of one embodiment of the present invention, 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)

[0120] PBCH can be sent to transmit one or both of MIB (Master Information Block) and physical layer control information. Here, physical layer control information is information generated in the physical layer. MIB is a set of parameters configured in BCCH (Broadcast Control Channel), which is a logical channel of the MAC layer. The BCCH is configured in BCH, which is a channel of the transport layer. BCH can be configured (mapped) to PBCH. Terminal device 1 can receive PBCH configured with one or both of MIB and physical layer control information. Base station device 3 can send PBCH configured with one or both of MIB and physical layer control information.

[0121] For example, the physical layer control information may be composed of 8 bits. The physical layer control information may include at least a part or all of the following 0A to 0D. 0A) Wireless frame bits 0B) Half radio frame (half system frame, half frame) bit 0C) SS / PBCH block index bit 0D) Subcarrier offset bit

[0122] The radio frame bit is used to indicate the radio frame in which the PBCH is sent (including the radio frame of the time slot in which the PBCH is sent). The radio frame bit includes 4 bits. The radio frame bit can be composed of 4 bits in the 10-bit radio frame indicator. For example, the radio frame indicator can be used to determine at least the radio frames of index 0 to index 1023.

[0123] The half radio frame bit is used to indicate in which of the first half of the 5 subframes or the second half of the 5 subframes in the radio frame in which the PBCH is transmitted, the PBCH is transmitted. Here, the half radio frame may be configured to include 5 subframes. In addition, the half radio frame may be configured to include the first half of the 5 subframes of the 10 subframes included in the radio frame. In addition, the half radio frame may also be configured to include the second half of the 5 subframes of the 10 subframes included in the radio frame.

[0124] 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 also be composed of 3 bits in the 6-bit SS / PBCH block index indicator. The SS / PBCH block index indicator may be used to determine at least SS / PBCH blocks of index 0 to index 63.

[0125] The subcarrier offset bit is used to indicate the subcarrier offset. The subcarrier offset can also be used to indicate the difference between the subcarrier at the start point of mapping the PBCH and the subcarrier at the start point of the control resource set with mapping index 0.

[0126] The PDCCH may be sent to transmit downlink control information (DCI: Downlink Control Information). The downlink control information may be configured on the PDCCH. The terminal device 1 may receive the PDCCH configured with the downlink control information. The base station device 3 may send the PDCCH configured with the downlink control information.

[0127] The downlink control information may be sent with a DCI format. It should be noted that the DCI format may be interpreted as the format of the downlink control information. In addition, the DCI format may also be interpreted as a set of downlink control information set in a certain format of downlink control information.

[0128] DCI format 0_0, DCI format 0_1, DCI format 1_0, and DCI format 1_1 are DCI formats. 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.

[0129] DCI format 0_0 is used to configure at least PUSCH scheduling in a certain cell. DCI format 0_0 is configured to include at least a part or all of the fields 1A to 1E. 1A) 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: Modulation and Coding Scheme field)

[0130] The DCI format specific field may indicate whether the DCI format including the DCI format specific field is an uplink DCI format or a downlink DCI format. That is, the DCI format specific field may be included in each uplink DCI format and downlink DCI format. Among them, the DCI format specific field included in DCI format 0_0 may represent 0.

[0131] The frequency domain resource allocation field included in DCI format 0_0 may be used to indicate the frequency resource allocation of the PUSCH.

[0132] The time domain resource allocation field included in DCI format 0_0 may be used to indicate the time resource allocation of the PUSCH.

[0133] The frequency hopping flag field may be used to indicate whether frequency hopping is applied to the PUSCH.

[0134] The MCS field included in DCI format 0_0 may be used to indicate at least one or both of the modulation mode and the target coding rate of the PUSCH. The target coding rate may be a target coding rate of a transport block configured in the PUSCH. The size of the transport block (TBS: Transport Block Size) configured in the PUSCH may be determined based on one or both of the target coding rate and the modulation mode of the PUSCH.

[0135] DCI format 0_0 may not include a field for CSI request (CSI request).

[0136] DCI format 0_0 may also not include a carrier indicator field. That is, the service cell to which the uplink component carrier configured with the PUSCH scheduled by DCI format 0_0 belongs and the service cell to which the uplink component carrier configured with the PDCCH containing the DCI format 0_0 belong may be the same. The terminal device 1 may recognize that the PUSCH scheduled by the DCI format 0_0 is configured on the uplink component carrier of a certain service cell based on the detection of DCI format 0_0 in a certain downlink component carrier of the certain service cell.

[0137] DCI format 0_0 may not include a BWP field (BWP indication field). Here, DCI format 0_0 may be a DCI format for scheduling PUSCH without changing the activated uplink BWP. Terminal device 1 may recognize that the PUSCH is sent without switching the activated uplink BWP based on detecting DCI format 0_0 for PUSCH scheduling.

[0138] DCI format 0_1 ​​is used to configure at least PUSCH scheduling in a certain cell. DCI format 0_1 ​​is configured to include at least a part or all of the fields 2A to 2H. 2A) DCI format specification field 2B) Frequency Domain Resource Allocation Field 2C) Time domain resource allocation field for uplink 2D) Frequency Hopping Flag Field 2E) MCS field 2F) CSI request field 2G)BWP field 2H) Carrier indicator field

[0139] The DCI format specific field included in DCI format 0_1 ​​can represent 0.

[0140] The frequency domain resource allocation field included in DCI format 0_1 ​​may be used to indicate frequency resource allocation for PUSCH.

[0141] The time domain resource allocation field included in DCI format 0_1 ​​may be used to indicate time resource allocation for PUSCH.

[0142] The MCS field included in DCI format 0_1 ​​may be used to indicate at least part or all of the modulation scheme and / or target coding rate for the PUSCH.

[0143] The BWP field of DCI format 0_1 ​​can be used to indicate the uplink BWP configured with the PUSCH scheduled by the DCI format 0_1. That is, DCI format 0_1 ​​can change according to the activation of the uplink BWP. The terminal device 1 can identify the uplink BWP configured with the PUSCH based on the detection of DCI format 0_1 ​​for PUSCH scheduling.

[0144] DCI format 0_1 ​​not including the BWP field may be a DCI format for scheduling PUSCH without changing the activated uplink BWP. Terminal device 1 is DCI format 0_1 ​​for PUSCH scheduling, and can recognize that the PUSCH is sent without switching the activated uplink BWP based on detecting DCI format D0_1 not including the BWP field.

[0145] The BWP field is included in DCI format 0_1, but when terminal device 1 does not support the function of switching BWP through DCI format 0_1, terminal device 1 can ignore the BWP field. That is, terminal device 1 that does not support the BWP switching function is DCI format 0_1 ​​for PUSCH scheduling, and can identify that the PUSCH is sent without switching to activate the uplink BWP based on the detection of DCI format 0_1 ​​containing the BWP field. Among them, when terminal device 1 supports the BWP switching function, in the function information reporting process of the RRC layer, it can be reported that "terminal device 1 supports the BWP switching function."

[0146] The CSI request field is used to indicate a CSI report.

[0147] Alternatively, when the carrier indicator field is included in DCI format 0_1, the carrier indicator field is used to indicate the uplink component carrier configured with the PUSCH. Alternatively, when the carrier indicator field is not included in DCI format 0_1, the uplink component carrier configured with the PUSCH is the same as the uplink component carrier configured with the PDCCH including the DCI format 0_1 ​​for scheduling the PUSCH. Alternatively, when the number of uplink component carriers set for the terminal device 1 in a certain service cell group is 2 or more (when uplink carrier aggregation is used in a certain service cell group), the number of bits of the carrier indicator field included in the DCI format 0_1 ​​for scheduling the PUSCH configured for the certain service cell group is 1 bit or more (for example, 3 bits). It may also be that, when the number of uplink component carriers set for terminal device 1 in a certain service cell group is 1 (when uplink carrier aggregation is not used in a certain service cell group), the number of bits of the carrier indicator field included in the DCI format 0_1 ​​used for scheduling of PUSCH configured for the certain service cell group is 0 (or the carrier indicator field is not included in the DCI format 0_1 ​​used for scheduling of PUSCH configured for the certain service cell group).

[0148] DCI format 1_0 is used to configure at least PDSCH scheduling in a certain cell. DCI format 1_0 is configured to include at least a part or all of 3A to 3F. 3A) DCI format specification 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

[0149] The DCI format specific field included in DCI format 1_0 may indicate 1.

[0150] The frequency domain resource allocation field included in DCI format 1_0 may be used at least to indicate allocation of frequency resources for PDSCH.

[0151] The time domain resource allocation field included in DCI format 1_0 may be used at least to indicate allocation of time resources for PDSCH.

[0152] The MCS field included in DCI format 1_0 may be used to indicate at least one or both of the modulation scheme and the target coding rate for the PDSCH. The target coding rate may be a target coding rate for a transport block configured in the PDSCH. The size of the transport block (TBS: Transport Block Size) configured in the PDSCH may be determined based on one or both of the target coding rate and the modulation scheme for the PDSCH.

[0153] The PDSCH_HARQ Feedback Timing Indication field may be used to indicate an offset from a slot containing a last OFDM symbol of a PDSCH to a slot containing an OFDM symbol of a start point of a PUCCH.

[0154] The PUCCH resource indication field may be a field indicating any index of one or more PUCCH resources included in a PUCCH resource set. The PUCCH resource set may include one or more PUCCH resources.

[0155] DCI format 1_0 may not include a carrier indicator field. That is, a downlink component carrier configured with a PDSCH scheduled by DCI format 1_0 may be the same as a downlink component carrier configured with a PDCCH including the DCI format 1_0. The terminal device 1 may recognize that the PDSCH scheduled by the DCI format 1_0 is configured on a downlink component carrier based on the detection of DCI format 1_0 in the downlink component carrier.

[0156] DCI format 1_0 may not include a BWP field. DCI format 1_0 may be a DCI format for scheduling PDSCH without changing the activated downlink BWP. The terminal device 1 may recognize that the PDSCH is received without switching the activated downlink BWP based on the detection of DCI format 1_0 for PDSCH scheduling.

[0157] DCI format 1_1 is used at least for configuring PDSCH scheduling in a certain cell. DCI format 1_1 may include at least a part or all of 4A to 4I. 4A) DCI format specification 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 indicator field 4H) BWP field 4I) Carrier Indicator Field

[0158] The DCI format specific field included in DCI format 1_1 can represent 1.

[0159] The frequency domain resource allocation field included in DCI format 1_1 may be used at least to indicate allocation of frequency resources for PDSCH.

[0160] The time domain resource allocation field included in DCI format 1_1 may be used at least to indicate allocation of time resources for PDSCH.

[0161] The MCS field included in DCI format 1_1 may be used to indicate at least one or both of a modulation scheme and a target coding rate for the PDSCH.

[0162] Alternatively, when the PDSCH_HARQ feedback timing indication field is included in the DCI format 1_1, the PDSCH_HARQ feedback timing indication field is at least used to indicate the offset from the time slot including the last OFDM symbol of the PDSCH to the time slot including the OFDM symbol of the starting point of the PUCCH. Alternatively, when the PDSCH_HARQ feedback timing indication field is not included in the DCI format 1_1, the offset from the time slot including the last OFDM symbol of the PDSCH to the time slot including the OFDM symbol of the starting point of the PUCCH is determined by the parameters of the upper layer.

[0163] The PUCCH resource indication field may be a field indicating any one index of one or more PUCCH resources included in a PUCCH resource set.

[0164] The BWP field of DCI format 1_1 can be used to indicate the downlink BWP configured with the PDSCH scheduled by the DCI format 1_1. That is, DCI format 1_1 can change according to the activation of the downlink BWP. The terminal device 1 can identify the downlink BWP configured with the PUSCH based on the detection of DCI format 1_1 for PDSCH scheduling.

[0165] The DCI format 1_1 not including the BWP field may be a DCI format for scheduling the PDSCH without changing the activated downlink BWP. The terminal device 1 is a DCI format 1_1 for PDSCH scheduling, and can recognize that the PDSCH is received without switching the activated downlink BWP based on the detection of the DCI format 1_1 not including the BWP field.

[0166] The DCI format 1_1 includes a BWP field, but when the terminal device 1 does not support the function of switching the BWP through the DCI format 1_1, the terminal device 1 can ignore the BWP field. That is, the terminal device 1 that does not support the BWP switching function is the DCI format 1_1 used for PDSCH scheduling, and can recognize that the PDSCH is received without switching to activate the downlink BWP based on the detection of the DCI format 1_1 containing the BWP field. Among them, when the terminal device 1 supports the BWP switching function, in the function information reporting process of the RRC layer, it can be reported that "the terminal device 1 supports the BWP switching function".

[0167] Alternatively, when the carrier indicator field is included in the DCI format 1_1, the carrier indicator field is used to indicate the downlink component carrier configured with the PDSCH. Alternatively, when the carrier indicator field is not included in the DCI format 1_1, the downlink component carrier configured with the PDSCH is the same as the downlink component carrier configured with the PDCCH including the DCI format 1_1 for scheduling the PDSCH. Alternatively, when the number of downlink component carriers set for the terminal device 1 in a certain service cell group is 2 or more (when downlink carrier aggregation is used in a certain service cell group), the number of bits of the carrier indicator field included in the DCI format 1_1 for scheduling the PDSCH configured for the certain service cell group is 1 bit or more (for example, 3 bits). Alternatively, when the number of downlink component carriers set for terminal device 1 in a certain service cell group is 1 (when downlink carrier aggregation is not used in a certain service cell group), the number of bits of the carrier indicator field included in the DCI format 1_1 used for scheduling of PDSCH configured for the certain service cell group is 0 (or, the carrier indicator field is not included in the DCI format 1_1 used for scheduling of PDSCH configured for the certain service cell group).

[0168] The PDSCH may be sent for delivering a transport block. The PDSCH may also be used to send a transport block distributed by the DL-SCH. The PDSCH may be used to deliver a transport block. The transport block may be configured on the PDSCH. The transport block corresponding to the DL-SCH may also be configured on the PDSCH. The base station device 3 may send the PDSCH. The terminal device 1 may receive the PDSCH.

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

[0170] The synchronization signal can be used to synchronize one or both of the frequency domain and the time domain of the downlink for the terminal device 1. The synchronization signal is a general term for PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal).

[0171] Figure 7 FIG. 1 is a diagram showing an example of the configuration of an SS / PBCH block according to one embodiment of the present invention. Figure 7 In the figure, the horizontal axis is the time axis (OFDM symbol index l sym ), the vertical axis represents the frequency domain. In addition, block 700 represents a set of resource elements for PSS. In addition, block 702 represents a set of resource elements for SSS. In addition, four blocks (blocks 710, 711, 712, and 713) represent a set of resource elements for PBCH and DMRS for the PBCH (DMRS associated with PBCH, DMRS included in PBCH, DMRS corresponding to PBCH).

[0172] like Figure 7As shown, the SS / PBCH block includes PSS, SSS and PBCH. In addition, the SS / PBCH block includes 4 consecutive OFDM symbols. The SS / PBCH block includes 240 subcarriers. PSS is configured on the 57th to 183rd subcarriers in the first OFDM symbol. SSS is configured on the 57th to 183rd subcarriers in the third OFDM symbol. The 1st to 56th subcarriers of the first OFDM symbol can be set to zero. The 184th to 240th subcarriers of the first OFDM symbol can also be set to zero. The 49th to 56th subcarriers of the third OFDM symbol can also be set to zero. The 184th to 192nd subcarriers of the third OFDM symbol can also be set to zero. PBCH is configured in the subcarriers that are the 1st to 240th subcarriers of the second OFDM symbol and are not configured with DMRS for PBCH. PBCH is configured in the subcarriers that are the 1st to 48th subcarriers of the third OFDM symbol and are not configured with DMRS for PBCH. The PBCH is configured in the subcarriers which are the 193rd to 240th subcarriers of the third OFDM symbol and to which the DMRS for the PBCH is not configured. The PBCH is configured in the subcarriers which are the 1st to 240th subcarriers of the fourth OFDM symbol and to which the DMRS for the PBCH is not configured.

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

[0174] A PBCH conveying a symbol of a PBCH in a certain antenna port may be estimated based on a DMRS for the PBCH that is configured to a slot in which the PBCH is mapped and that is included in a SS / PBCH block including 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 for DMRS for PDSCH (DMRS associated with PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) can be given based on the set of antenna ports for the PDSCH. That is, the set of antenna ports for DMRS for PDSCH can be the same as the set of antenna ports for the PDSCH.

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

[0178] The transmission path of the PDSCH can be estimated based on the DMRS used for the PDSCH. If a set of resource elements that transmit symbols of a certain PDSCH and a set of resource elements that transmit symbols of the DMRS used for the certain PDSCH are included in the same precoding resource group (PRG: Precoding Resource Group), the PDSCH that transmits the symbols of the PDSCH in a certain antenna port can be estimated based on the DMRS used for the PDSCH.

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

[0180] The PDCCH can be estimated based on the DMRS used for the PDCCH. That is, the transmission path of the PDCCH can be estimated based on the DMRS used for the PDCCH. If the same precoding is applied (assumed to be applied, assumed to be applied) in a set of resource elements that convey symbols of a certain PDCCH and a set of resource elements that convey symbols of the DMRS used for the certain PDCCH, then the PDCCH that conveys the symbols of the PDCCH in a certain antenna port can be estimated based on the DMRS used for the PDCCH.

[0181] BCH (Broadcast CHannel), UL-SCH (Uplink-Shared CHannel) and DL-SCH (Downlink-Shared CHannel) are transport channels. Transport channels define the relationship between physical layer channels and MAC layer channels (also called logical channels).

[0182] The BCH of the transport layer is mapped to the PBCH of the physical layer. That is, the transport block of the BCH of the transport layer is distributed to the PBCH of the physical layer. In addition, the UL-SCH of the transport layer is mapped to the PUSCH of the physical layer. That is, the transport block of the UL-SCH of the transport layer is distributed to the PUSCH of the physical layer. In addition, the DL-SCH of the transport layer is mapped to the PDSCH of the physical layer. That is, the transport block of the DL-SCH of the transport layer is distributed to the PDSCH of the physical layer.

[0183] One UL-SCH and one DL-SCH may be provided for each serving cell. BCH may be provided by PCell. BCH may also not be provided by PSCell or SCell.

[0184] In the MAC layer, HARQ (Hybrid Automatic Repeat reQuest) control is performed on each transport block.

[0185] 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 for sending MIB or system information. In addition, CCCH (Common Control CHannel) can be used to send RRC messages that are common to multiple terminal devices 1. Here, CCCH can be used for terminal devices 1 that are not RRC connected, for example. In addition, DCCH (Dedicated Control CHannel) can be used at least to send RRC messages dedicated to terminal device 1. Here, DCCH can be used for terminal devices 1 that are RRC connected, for example.

[0186] The upper layer parameters shared by multiple terminal devices 1 are also called common upper layer parameters. The common upper layer parameters can be defined as parameters specific to a service cell. The parameters specific to a service cell can be parameters shared by terminal devices (e.g., terminal devices 1-A, B, C) that set the service cell.

[0187] For example, the common upper layer parameters may be included in an RRC message distributed to the BCCH.For example, the common upper layer parameters may be included in an RRC message distributed to the DCCH.

[0188] In a certain upper layer parameter, an upper layer parameter different from a common upper layer parameter is also referred to as a dedicated upper layer parameter. Among them, the dedicated upper layer parameter can provide a dedicated RRC parameter to the terminal device 1-A that sets the service cell. That is, the dedicated RRC parameter is an upper layer parameter that can provide a specific setting for each of the terminal devices 1-A, B, and C.

[0189] The BCCH of the logical channel can be mapped to the BCH or DL-SCH of the transport layer. For example, a transport block containing MIB information is distributed to the BCH of the transport layer. In addition, a transport block containing system information other than MIB is distributed to the DL-SCH of the transport layer. In addition, CCCH is mapped to DL-SCH or UL-SCH. That is, the transport block mapped to CCCH is distributed to DL-SCH or UL-SCH. In addition, DCCH is mapped to DL-SCH or UL-SCH. That is, the transport block mapped to DCCH is distributed to DL-SCH or UL-SCH.

[0190] The RRC message includes one or more parameters managed in the RRC layer. Among them, the parameters managed in the RRC layer are also called RRC parameters. For example, the RRC message may include MIB. In addition, the RRC message may also include system information. In addition, the RRC message may also include a message corresponding to CCCH. In addition, the RRC message may also include a message corresponding to DCCH. The RRC message including a message corresponding to DCCH is also called a dedicated RRC message.

[0191] The upper layer parameters (upper layer parameters) are parameters included in the RRC parameters or MAC CE (Medium Access Control Control Element: control element of media access control). That is, the upper layer parameters are a general term for the MIB, system information, messages corresponding to CCCH, messages corresponding to DCCH, and parameters included in the MAC CE. The parameters included in the MAC CE are sent through a MAC CE (Control Element: control element) command.

[0192] The process performed by the terminal device 1 includes at least a part or all of the following 5A to 5C. 5A) Cell search 5B) Random access 5C) Data communication

[0193] Cell search is a process for synchronizing a cell in time and frequency domains and detecting a physical cell ID (physical cell identity) through the terminal device 1. That is, the terminal device 1 can synchronize with a cell in time and frequency domains and detect a physical cell ID through cell search.

[0194] The sequence of the PSS is given based on at least the physical cell ID. The sequence of the SSS is given based on at least the physical cell ID.

[0195] The SS / PBCH block candidates indicate resources for which transmission of SS / PBCH blocks is permitted (able to, reserved, set, specified, or possible).

[0196] The set of SS / PBCH block candidates in a half radio frame is also called an SS burst set. An SS burst set is also called a transmission window, an SS transmission window, or a DRS transmission window. An SS burst set is a general term for at least a first SS burst set and a second SS burst set.

[0197] The base station device 3 sends one or more indexed SS / PBCH blocks at a predetermined period. The terminal device 1 can detect at least any one of the one or more indexed SS / PBCH blocks and attempt to decode the PBCH included in the SS / PBCH block.

[0198] Random access is a process including at least part or all of message 1, message 2, message 3 and message 4.

[0199] Message 1 is a process of sending PRACH by terminal device 1. Terminal device 1 sends PRACH in a PRACH opportunity selected from one or more PRACH opportunities based at least on an index of an SS / PBCH block candidate, wherein the index of the SS / PBCH block candidate is detected based on a cell search. Each PRACH opportunity is defined based on at least a time domain resource and a frequency domain resource.

[0200] The terminal device 1 transmits one random access preamble selected from the PRACH opportunities corresponding to the index of the SS / PBCH block candidate for detecting the SS / PBCH block.

[0201] Message 2 is a process of attempting to detect DCI format 1_0 with CRC (Cyclic Redundancy Check) encrypted by RA-RNTI (Random Access-Radio Network Temporary Identifier) ​​by terminal device 1. Terminal device 1 attempts to detect PDCCH including the DCI format in resources indicated based on the settings of control resource set and search area set, wherein the settings of control resource set and search area set are given based on MIB of PBCH included in SS / PBCH block detected based on cell search. Message 2 is also called random access response.

[0202] Message 3 is a process of transmitting a PUSCH scheduled by a random access response grant included in DCI format 1_0 detected by the process of message 2. Here, the random access response grant is indicated by a MAC CE included in a PDSCH scheduled by the DCI format 1_0.

[0203] The PUSCH scheduled based on the random access response grant is any one of the messages 3PUSCH or PUSCH. The message 3PUSCH includes a contention resolution identifier (MAC CE). The contention resolution identifier (MAC CE) includes the contention resolution ID.

[0204] The retransmission of message 3 PUSCH is scheduled by DCI format 0_0 with CRC scrambled based on TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).

[0205] Message 4 is a process of attempting to detect DCI format 1_0 with CRC scrambled based on either C-RNTI (Cell-Radio Network Temporary Identifier) ​​or TC-RNTI. Terminal device 1 receives PDSCH scheduled based on DCI format 1_0. The PDSCH may include a contention resolution ID.

[0206] Data communication is a general term for downlink communication and uplink communication.

[0207] In data communication, the terminal device 1 attempts to detect the PDCCH (monitor the PDCCH, monitor the PDCCH) in resources determined based on the control resource set and the search area set.

[0208] A control resource set is a set of resources consisting of a predetermined number of resource blocks and a predetermined number of OFDM symbols. In the frequency domain, a control resource set can be composed of continuous resources (non-interleaved mapping) or dispersed resources (interleaver mapping).

[0209] The set of resource blocks constituting the control resource set may be represented by an upper layer parameter. The number of OFDM symbols constituting the control resource set may also be represented by an upper layer parameter.

[0210] Terminal device 1 attempts to detect PDCCH in the search area set. Here, attempting to detect PDCCH in the search area set may be attempting to detect PDCCH candidates in the search area set, or attempting to detect DCI formats in the search area set, or attempting to detect PDCCH in the control resource set, or attempting to detect PDCCH candidates in the control resource set, or attempting to detect DCI formats in the control resource set.

[0211] The search area set is defined as a set of PDCCH candidates. The search area set can be a CSS (Common Search Space) set or a USS (UE-specific Search Space) set. Terminal device 1 attempts to detect PDCCH candidates in part or all of a type 0 PDCCH common search space set, a type 0a PDCCH common search space set, a type 1 PDCCH common search space set, a type 2 PDCCH common search space set, a type 3 PDCCH common search space set, and / or a UE-specific PDCCH search space set.

[0212] The type 0 PDCCH common search region set may be used as the common search region set of index 0. The type 0 PDCCH common search region set may also be the common search region set of index 0.

[0213] The CSS set is a general term for type 0 PDCCH common search area set, type 0a PDCCH common search area set, type 1 PDCCH common search area set, type 2 PDCCH common search area set, and type 3 PDCCH common search area set. The USS set is also called a UE-specific PDCCH search area set.

[0214] A certain search area set is associated with (includes, corresponds to) a certain control resource set. The index of the control resource set associated with the search area set may be represented by an upper layer parameter.

[0215] For a certain search area set, at least a part or all of 6A to 6C may be represented by upper layer parameters. 6A)PDCCH monitoring periodicity 6B)PDCCH monitoring pattern within a slot 6C)PDCCH monitoring offset

[0216] A monitoring occasion of a certain search area set may correspond to an OFDM symbol configured with an OFDM symbol of a starting point of a control resource set associated with the certain search area set. A monitoring occasion of a certain search area set may also correspond to resources of the control resource set starting from an OFDM symbol of a starting point of a control resource set associated with the certain search area set. The monitoring occasion of the search area set is given based on at least a portion or all of a monitoring interval of a PDCCH, a monitoring mode of a PDCCH within a time slot, and a monitoring offset of a PDCCH.

[0217] Figure 8 FIG. 1 is a diagram showing an example of monitoring opportunities of a search area set according to one embodiment of the present invention. Figure 8 In the embodiment, search area set 91 and search area set 92 are set in primary cell 301 , search area set 93 is set in secondary cell 302 , and search area set 94 is set in secondary cell 303 .

[0218] exist Figure 8 In the figure, the monochrome white blocks in the primary cell 301 represent the search area set 91, the monochrome black blocks in the primary cell 301 represent the search area set 92, the blocks in the secondary cell 302 represent the search area set 93, and the blocks in the secondary cell 303 represent the search area set 94.

[0219] The monitoring interval of search area set 91 is set to 1 time slot, the monitoring offset of search area set 91 is set to 0 time slots, and the monitoring pattern of search area set 91 is set to [1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0]. That is, the monitoring opportunities of search area set 91 correspond to the starting OFDM symbol (OFDM symbol #0) and the 8th OFDM symbol (OFDM symbol #7) in each time slot.

[0220] The monitoring interval of search area set 92 is set to 2 time slots, the monitoring offset of search area set 92 is set to 0 time slots, and the monitoring pattern of search area set 92 is set to [1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. That is, the monitoring opportunity of search area set 92 corresponds to the OFDM symbol (OFDM symbol #0) at the start point in each even time slot.

[0221] The monitoring interval of search area set 93 is set to 2 time slots, the monitoring offset of search area set 93 is set to 0 time slots, and the monitoring pattern of search area set 93 is set to [0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0]. That is, the monitoring opportunity of search area set 93 corresponds to the 8th OFDM symbol (OFDM symbol #7) in each even time slot.

[0222] The monitoring interval of search area set 94 is set to 2 time slots, the monitoring offset of search area set 94 is set to 1 time 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]. That is, the monitoring opportunity of search area set 94 corresponds to the OFDM symbol (OFDM symbol #0) at the start point in each odd time slot.

[0223] The type 0 PDCCH common search area set can be used at least for a DCI format that is accompanied by a CRC (Cyclic Redundancy Check) sequence that is scrambled by the SI-RNTI (System Information-Radio Network Temporary Identifier).

[0224] The type 0a PDCCH common search space set can be used at least for a DCI format with a CRC (Cyclic Redundancy Check) sequence scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).

[0225] The type 1 PDCCH common search area set can be used at least for a DCI format with a CRC sequence scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) ​​and / or a CRC sequence scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).

[0226] The type 2 PDCCH common search area set may be used for a DCI format with a CRC sequence scrambled by a P-RNTI (Paging-Radio Network Temporary Identifier).

[0227] The type 3 PDCCH common search area set may be used for a DCI format with a CRC sequence scrambled by a C-RNTI (Cell-Radio Network Temporary Identifier).

[0228] The UE-specific PDCCH search area set may be used at least for a DCI format to which a CRC sequence scrambled by a C-RNTI is attached.

[0229] In downlink communication, terminal device 1 detects a downlink DCI format. The detected downlink DCI format is used at least for resource allocation of PDSCH. The detected downlink DCI format is also referred to as a downlink assignment. Terminal device 1 attempts to receive the PDSCH. Based on the PUCCH resource, the HARQ-ACK corresponding to the PDSCH (the HARQ-ACK corresponding to the transport block included in the PDSCH) is reported to base station device 3, wherein the PUCCH resource is indicated based on the detected downlink DCI format.

[0230] In uplink communication, the terminal device 1 detects an uplink DCI format. The detected DCI format is used for at least resource allocation of a PUSCH. The detected uplink DCI format is also called an uplink grant. The terminal device 1 transmits the PUSCH.

[0231] In the configured grant, the uplink grant for scheduling PUSCH is configured 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 configured uplink grant in the configured scheduling.

[0232] The PUSCH transmission may correspond to the set scheduling type 1 or the set scheduling type 2. That is, the set scheduling may be any one of the set scheduling type 1 and the set scheduling type 2. The PUSCH transmission of the set scheduling type 1 may also be set semi-statically. For example, the PUSCH transmission of the set scheduling type 1 may also operate in response to the reception of a certain upper layer parameter. The certain upper layer parameter may be configuredGrantConfig. For example, configuredGrantConfig may include rrc-ConfiguredUplinkGrant. The PUSCH transmission may also operate without the detection of an uplink grant in the DCI.

[0233] The PUSCH transmission of the set scheduling type 2 may be scheduled semi-persistently. For example, it may also be scheduled by a certain uplink grant. A certain uplink grant may be included in an activation DCI (activation DCI or valid activation DCI). For example, after receiving a certain upper layer parameter, the PUSCH transmission of the set scheduling type 2 may also be scheduled by a certain uplink grant. The certain upper layer parameter may be configuredGrantConfig. For example, configuredGrantConfig may not include rrc-ConfiguredUplinkGrant.

[0234] System frame number (SFN) f It may be a number assigned to a radio frame and / or an index for a radio frame. The system frame number may be composed of 10 bits. At least a portion of the system frame number may be notified by the MIB. For example, 6 bits (e.g., 6 uppermost bits) of the 10-bit system frame number may be notified by the MIB. At least a portion of the system frame number may also be determined based on the PBCH used to transmit the MIB. For example, 4 bits (e.g., 4 lowermost bits) of the 10-bit system frame number may be transmitted by the PBCH transport block as part of the channel coding.

[0235] The upper layer parameter ServingCellConfig can be set in a serving cell. The upper layer parameter ServingCellConfig may include both dedicated upper layer parameters and common upper layer parameters. In a serving cell, one or more BWPs may be set. For example, in a serving cell, one or more uplink BWPs (ULBWPs) and one or more downlink BWPs (DL BWPs) may also be set. For example, the downlink BWP may be set by the upper layer parameter BWP-Downlink. For example, the downlink BWP may also be set by the common upper layer parameter BWP-DownlinkCommon. For example, the downlink BWP may also be set by the dedicated upper layer parameter BWP-DownlinkDedicated. For example, the uplink BWP may also be set by the upper layer parameter BWP-uplink. For example, the uplink BWP may also be set by the common upper layer parameter BWP-UplinkCommon. For example, the uplink BWP may also be set by the dedicated upper layer parameter BWP-UplinkDedicated. PUSCH-Config may be a dedicated upper layer parameter. PUSCH-ConfigCommon may be a common upper layer parameter. PUSCH-Config may be set for PUSCH transmission per BWP. PUSCH-Config may include multiple upper layer parameters related to PUSCH transmission. PUSCH-Config may be a UE-specific setting. For example, the PUSCH-Config for terminal device 1A, terminal device 1B, and terminal device 1C in a cell or multiple upper layer parameters included in the PUSCH-Config may be different. PUSCH-ConfigCommon may also be set for PUSCH transmission per BWP. PUSCH-ConfigCommon may include multiple upper layer parameters related to PUSCH transmission. PUSCH-ConfigCommon may be a cell-specific setting. For example, the PUSCH-ConfigCommon for terminal device 1A, terminal device 1B, and terminal device 1C in a cell may be shared. For example, PUSCH-ConfigCommon may be given by system information.

[0236] For PUSCH, at least two transmission methods can be supported. For example, codebook transmission (Codebook-basedtransmission) can be one of the transmission methods for PUSCH. For example, non-codebook transmission (Non-codebook-basedtransmission) can also be one of the transmission methods for PUSCH. The upper-layer parameters can provide any one of codebook transmission and non-codebook transmission. For example, when the upper-layer parameters are set to 'codebook', the terminal device 1 can set the codebook transmission. For example, when the upper-layer parameters are set to 'nonCodebook', the terminal device 1 can also set the non-codebook transmission. The upper-layer parameter may be txConfig. The upper-layer parameter may also be usage. For example, when the upper-layer parameters are not set, the terminal device 1 may not expect to be scheduled through any of DCI formats 0_1 and DCI formats 0_2. When PUSCH is scheduled through DCI format 0_0, it is better to transmit the PUSCH based on at least one antenna port.

[0237] In codebook transmission, PUSCH can be scheduled by DCI format. The DCI format can be any one of DCI format 0_0, DCI format 0_1 ​​and DCI format 0_2. In codebook transmission, PUSCH can also be set to be sent semi-statically. Terminal device 1 can determine one or more precoders for PUSCH transmission. For example, the precoder can be determined based on at least part or all of SRI (SRS Resource indicator), TPMI (Transmitted Precoding Matrix Indicator) and transmission rank (Transmission rank or rank). For example, SRI can be provided by one or two DCI fields of SRS resource indicator. For example, TPMI can be provided by one or two DCI fields of precoding information. For example, the transmission rank can be provided by the DCI field of the number of layers (number of transmission layers). SRI can also be provided by a first upper layer parameter. TPMI and transmission rank can also be provided by a second upper layer parameter. The first upper layer parameter may be srs-ResourceIndicator or srs-ResourceIndicator2. The second upper layer parameter may be precodingAndNumberOfLayers or precodingAndNumberOfLayers2.

[0238] The SRS resource set applied to the PUSCH may be determined based on an upper layer parameter. The PUSCH may be scheduled via DCI format 0_1 ​​or DCI format 0_2. The upper layer parameter may be srs-ResourceSetToAddModList or srs-ResourceSetToAddModeListDCI-0-2. The upper layer parameter may be an upper layer parameter set in SRS-Config.

[0239] In the case where 'codebook' is set for the upper layer parameter usage, one or two SRS resource sets may be set in srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2. The upper layer parameter usage may be set in the upper layer parameter SRS-ResourceSet.

[0240] When one SRS resource set is set, SRI and TPMI may be given by the DCI field. TPMI may be used to indicate a precoder. The precoder may be applied to the entire v layers. When multiple SRS resources are set, an SRS resource may be selected by SRI. The transmit precoder (precoder) may be selected from a codebook (uplink codebook). For example, a codebook may have the number of antenna ports. The number of antenna ports may be the same as the upper layer parameter nrofSRS-Ports. When 'codebook' is set for the upper layer parameter txConfig, the terminal device 1 may set at least one SRS resource. The indicated SRI may be associated with the transmission of the SRS resource specified by the SRI.

[0241] In the case of setting two SRS resource sets, one or two SRIs and one or two TPMIs may be given by the DCI field. For example, the DCI field may be one or both of the DCI field of the SRS resource indicator and the DCI field of the precoding information and the number of layers. The terminal device 1 may apply the indicated SRI and TPMI to one or more PUSCH repetitions. The TPMI may be used to indicate the precoder based on the code point of the SRS resource set indicator. The precoder may be applied to layers 0 to v-1. The precoder may correspond to the SRS resource selected by the SRI. Multiple SRS resources may be set for the applicable SRS resource set. In one or two TPMIs, a transmission precoder (precoder) may be selected from a codebook (uplink codebook). When indicating two SRIs, the terminal device 1 may expect the number of antenna ports for the two indicated SRS resources to be the same. The number of antenna ports may be provided by upper layer parameters.

[0242] In the codebook transmission, the terminal device 1 can determine a codebook subset. For example, the codebook subset can be determined based on at least TPMI. The codebook subset can be determined in response to the reception of a certain upper layer parameter. The certain upper layer parameter can be codebookSubset or codebookSubsetDCI-0-2. A certain upper layer parameter can be set to any one of 'fullyAndPartialAndNonCoherent', 'partialAndNonCoherent' and 'nonCoherent'. For example, when at least a certain upper layer parameter is set to 'partialAndNonCoherent', the codebook subset associated with a two-port SRS resource (SRS resource with two ports) can be 'nonCoherent'. For example, the codebook may include at least one SRS resource with four ports and at least one SRS resource with two ports.

[0243] The terminal device 1 may report the UE capability. When the terminal device 1 reports the UE capability transmitted by 'partialAndNonCoherent', the terminal device 1 may not expect to set the codebook subset with 'fullyAndPartialAndNonCoherent'.

[0244] In the case where the terminal device 1 reports the UE capability of 'nonCoherent' transmission, the terminal device 1 may not expect to set the codebook subset with 'fullyAndPartialAndNonCoherent' or 'partialAndNonCoherent'.

[0245] When the maximum number of SRS antenna ports set by the antenna port number indication is 2, the terminal device 1 may not expect to set the upper layer parameter set to 'partialAndNonCoherent'. The upper layer parameter may be codebookSubset or codebookSubsetForDCI-Format0-2. The number of antenna ports may be determined by the upper layer parameter nrofSRS-Ports.

[0246] In codebook transmission, one SRS resource can be determined from an SRS resource set based on SRI. Except for the case where 'fullpowerMode2' is set for the first upper layer parameter, the maximum number of SRS resources set for codebook transmission may be 2. The first upper layer parameter may be ul-FullPowerTransmission. The DCI may indicate the transmission of SRS resources. For example, in the case of setting aperiodic SRS, the SRS request field in the DCI may indicate the transmission of aperiodic SRS resources. The terminal device 1 may not expect to set the first upper layer parameter set to 'fullpowerMode1' and the second upper layer parameter set to 'fullAndPartialAndNonCoherent'.

[0247] The terminal device 1 may use the same one or more antenna ports to transmit PUSCH as one or more SRS ports in the SRS resource indicated by the DCI format or upper layer parameters. For example, the SRS port may be the same as the antenna port used for PUSCH transmission. The DMRS antenna port may be determined based on the ordering of the DMRS ports.

[0248] When a plurality of SRS resources are set by an SRS resource set, the terminal device 1 may expect that the upper layer parameter nrofSRS-Ports having the same value is set for these SRS resources. The SRS resource set may be an upper layer parameter SRS-ResourceSet with an upper layer parameter usage set to 'codebook'.

[0249] When 'fullpowerMode2' is set for the upper-layer parameter, one or more SRS resources with the same or different number of SRS ports can be set in one SRS resource set. When 'fullpowerMode2' is set for the upper-layer parameter, up to two different spatial relations can be set for all SRS resources in one SRS resource set. When 'fullpowerMode2' is set for the upper-layer parameter, up to two or four SRS resources can be set in one SRS resource set. In addition, up to eight SRS resources can be set in one SRS resource set. The SRS resource set can be an SRS resource set with the upper-layer parameter usage set to 'codebook'.

[0250] In non-codebook transmission, PUSCH can be scheduled by DCI format 0_0, DCI format 0_1 ​​or DCI format 0_2. Terminal device 1 can determine the precoder and transmission rank of PUSCH based on SRI. For example, when setting multiple SRS resources, SRI can be given by one or two SRS resource indicators in DCI. For example, SRI can also be given by upper-layer parameters. The SRS resource set applied to PUSCH can also be defined by the entry of the upper-layer parameter. The upper-layer parameter can also be srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2.

[0251] The terminal device 1 can use one or more SRS resources for SRS transmission. The maximum number of SRS resources in an SRS resource set can be sent to the base station device 3 as a UE capability (terminal capability). SRS resources can be set for simultaneous transmission of the same OFDM symbol. Multiple SRS resources sent simultaneously can occupy the same resource block. An SRS port can be set in each SRS resource. One or two SRS resource sets can be set in the upper-layer parameter srs-ResourceSetToAddModList in which the upper-layer parameter usage in the upper-layer parameter SRS-ResourceSet is set to 'nonCodebook'. In the case of setting two SRS resource sets, one or two SRIs can be given by the DCI field. The DCI field can be a DCI field of two SRS resource indicators.

[0252] The terminal device 1 may apply the indicated SRI to one or more PUSCH repetitions. For example, according to the SRS resource set of the PUSCH repetition, the terminal device 1 may apply the indicated SRI to one or more PUSCH repetitions. The maximum number of SRS resources for each SRS resource set set for non-codebook transmission may be 4. The maximum number of SRS resources for each SRS resource set set for non-codebook transmission may also be 8. The indicated one or two SRIs may be associated with the latest transmission of the SRS resources of the SRS resource set identified by the SRI, respectively. The SRS transmission may be before the PDCCH that conveys the SRI. The terminal device 1 may also not expect to set different numbers of SRS resources in the two SRS resource sets.

[0253] The terminal device 1 may apply the "indicated TCI state" to one or more PUSCH repetitions. For example, according to the SRS resource set indication field or the TRP indication field, the terminal device 1 may also apply the "indicated TCI state" to one or more PUSCH repetitions. One or two "indicated TCI states" may be associated with the latest indication of the TCI state indicated by the first DCI format, respectively. The first DCI format may be sent before the second DCI format that schedules the PUSCH repetitions.

[0254] When multiple PDCCH candidates (PDCCH candidate(s)) are associated with a search region set set by a higher layer parameter, one PDCCH candidate is used. The one PDCCH candidate may be the earlier one of the two PDCCH candidates. The higher layer parameter may be searchSpaceLinking.

[0255] In non-codebook transmission, the terminal device 1 may calculate a precoder. For example, a precoder for SRS transmission may be calculated based on a measurement of an NZP CSI-RS resource. One NZP CSI-RS resource may be set for one SRS resource set. For example, one SRS resource set may be an SRS resource set with an upper layer parameter set to 'nonCodebook'.

[0256] In the case of setting an aperiodic SRS resource set, the NZP-CSI RS can be indicated via the SRS request field. The SRS request field can be one of the DCI fields in any one of DCI format 0_1, DCI format 0_2, DCI format 1_1 and DCI format 1_2. The first upper layer parameter can indicate the association between the aperiodic SRS (aperiodic SRS triggering state) and the SRS resource set. The first upper layer parameter, the triggered SRS resource, srs-ResourceSetId and csi-RS can be set in the upper layer parameter SRS-ResourceSet. The upper layer parameter csi-RS can indicate NZP-CSI-RS-ResourceId. The upper layer parameter SRS-ResourceSet associated with the SRS request can be defined by an entry in a list as an upper layer parameter. The list as an upper layer parameter can be an upper layer parameter srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2. Terminal device 1 may not expect to update precoding information (SRS precoding information). For example, when the interval between the first OFDM symbol of non-periodic SRS transmission is less than 42 OFDM symbols from the last OFDM symbol of the reception of the non-periodic NZP-CSI-RS resource, terminal device 1 may not expect to update precoding information.

[0257] In the case of setting an aperiodic SRS associated with an aperiodic NZP CSI-RS resource, the presence of CSI-RS can be indicated by the SRS request field. In the case where the value of the SRS request field is not '00' and the scheduling DCI is not used for cross carrier scheduling or cross bandwidth partscheduling, the presence of CSI-RS can be indicated by the SRS request field.

[0258] The terminal device 1 can perform a one-to-one mapping. The one-to-one mapping can be a mapping from SRI to the PUSCH layer corresponding to the DMRS port. PUSCH layers from 0 to v-1 can be given. v can be the number of layers. The number of layers can be set by upper layer parameters. The number of layers can be indicated by DCI. The terminal device 1 can use the same antenna port as the SRS port to send PUSCH. For example, the SRS port in the SRS resource indicated by SRI can be additionally indexed as pi=1000+i. For example, the SRS port in the (i+1)th SRS resource can be pi. In addition, the SRS port in the (i+1)th SRS resource can be additionally indexed as pi. pi can be 1000+i. That is, it can also be pi=1000+i.

[0259] In non-codebook transmission, the terminal device 1 may not expect to set both the spatial relation information (info) for the SRS resources and the upper-layer parameter associatedCSI-RS in the upper-layer parameter SRS-ResourceSet for the SRS resource set. The spatial relationship information can be determined by the upper-layer parameter. The spatial relationship information can be the upper-layer parameter spatialRelationInfo. In non-codebook transmission, when at least one SRS resource is set in the SRS resource set with the upper-layer parameter set to 'nonCodebook', the terminal device 1 can schedule through DCI format 0_1 ​​or DCI format 0_2. The spatial relationship information can also be determined by the TCI state. The spatial relationship information can also be determined by the "indicated TCI state".

[0260] One or more SRS resource sets (Sounding Reference Signal resource set) can be set by a first upper layer parameter. The first upper layer parameter can be SRS-ResourceSet or SRS-PosResourceSet. In each SRS resource set, K SRS resources can be set. K can also be an integer greater than 1. The maximum value of K can be represented by the UE capability. The maximum value of K can be 16. The applicability of the SRS resource set can be set in a second upper layer parameter. The second upper layer parameter can be usage. For example, when 'beamManagement' is set to the second upper layer parameter, an SRS resource can be sent in each of one or more SRS resource sets. For example, an SRS resource can be sent at a given time instance. Multiple SRS resources in different SRS resource sets can be sent simultaneously. For example, in different SRS resource sets of the same BWP, multiple SRS resources with the same time domain behavior can be sent simultaneously.

[0261] In the aperiodic SRS, in order to select at least one from a set SRS resource set, at least one DCI field may be used.

[0262] PUSCH can be sent in multiple time slots. For example, PUSCH that transmits a transport block can be sent in multiple time slots. For example, a transport block can be sent in multiple time slots. In order to determine the TBS, a certain number of time slots can be indicated by a first upper layer parameter. For example, the number of time slots used for TBS determination can be indicated by a first upper layer parameter. The first upper layer parameter can be an upper layer parameter numberOfSlotsTBoMS. The certain number of time slots can be different from a certain number of repetitions. It is also possible to determine a certain number of repetitions of a certain number of time slots for TBS determination. For example, a certain number of repetitions can also be determined by a second upper layer parameter. The second upper layer parameter can be included in the resource allocation table. It is not expected that the product of a certain number of time slots and a certain number of repetitions exceeds 32. It is also not expected that the product of a certain number of time slots and a certain number of repetitions exceeds a certain value. A certain value can be indicated by UE capabilities. In the case of applying DMRS bundling, the product of a certain number of time slots and a certain number of repetitions can be greater than 1. For example, in the case of applying DMRS bundling, a certain number of repetitions can be greater than 1. In the case where a certain number of repetitions is 1, the set time domain window can also be determined (generated). When the product of a certain number of time slots and a certain number of repetitions is 1, the set time domain window may also be determined (generated). TBoMS The certain number of repetitions may be K repetition The product of a certain number of time slots and a certain number of repetitions can also be N TBoMS K repetition .

[0263] Repeated transmission may be applied to PUSCH. Repeated transmission may be applied to PUSCH scheduled by DCI. In addition, repeated transmission may also be applied to PUSCH scheduled by a set uplink grant. The PUSCH repetition type may be any one of PUSCH repetition type A and PUSCH repetition type B. The PUSCH repetition type may be set by an upper layer parameter. The PUSCH repetition type may be based on the DCI format. For example, the first PUSCH repetition type of a PUSCH scheduled by DCI format 0_1 ​​may be different from the second PUSCH repetition type of a PUSCH scheduled by DCI format 0_2.

[0264] The number of repetitions can be set by upper layer parameters. The number of repetitions for PUSCH repeated transmission can be set by upper layer parameters. For example, the upper layer parameter numberOfRepetitioins can be a parameter containing the number of repetitions for PUSCH repeated transmission. In the PUSCH repeated transmission corresponding to PUSCH repetition type A, the number of repetitions for PUSCH repeated transmission can be determined by the value of the upper layer parameter numberOfRepetitions. In PUSCH repetition type A, when there is numberOfRepetitions in the resource allocation table, the number of repetitions of the PUSCH scrambled by any one of C-RNTI, MCS-C-RNTI and CS-RNTI and sent through the DCI format indication with CRC can be equal to numberOfRepetitions. When a PUSCH-TimeDomainResourceAllocation includes one or more PUSCH-Allocations, the upper layer parameter numberOfRepetitions can be set for each PUSCH-Allocation. In addition, PUSCH-TimeDomainResourceAllocation can be called a resource allocation table.

[0265] The upper layer parameter push-AggregationFactor may be a parameter indicating the number of repetitions of PUSCH repetition transmission. In PUSCH repetition transmission corresponding to PUSCH repetition type A, the number of repetitions for PUSCH repetition transmission may be determined by the value of the upper layer parameter push-AggregationFactor. In PUSCH repetition type A, when push-AggregationFactor is set, the number of repetitions of PUSCH scrambled by any one of C-RNTI, MCS-C-RNTI and CS-RNTI and transmitted through a DCI format indication with an attached CRC may be equal to push-AggregationFactor. push-AggregationFactor may be set for PUSCH-Config.

[0266] The number of repetitions corresponding to PUSCH repetition type A may be the number of slots used for PUSCH repetition transmission. In addition, one TB may be repeated in one or more slots. PUSCH repetitions transmitted in different slots may apply the same OFDM symbol allocation.

[0267] In the PUSCH repetition transmission corresponding to the PUSCH repetition type B, it can be based on the nominal repetition (NominalRepetition) and the actual repetition (ActualRepetition).

[0268] In the case where two SRS resource sets (a first SRS resource set and a second SRS resource set) are set and the number of repetitions K in the PUSCH repetition type A is greater than 1, the same OFDM symbol allocation can be applied in K consecutive time slots, and the PUSCH is limited to one transmission layer. The terminal device 1 can repeat the transmission block in K consecutive time slots. In the case of the code point "00" indicating the SRS resource set indication field, the first SRS resource set can be associated with K consecutive time slots. In the case of the code point "01" indicating the SRS resource set indication field, the second SRS resource set can be associated with K consecutive time slots. In the case of the code point "10" indicating the SRS resource set indication field, the first SRS resource set and the second SRS resource set can be associated with K consecutive time slots. For example, in the case of K=2, the first SRS resource set can be applied to the first time slot, and the second SRS resource set can be applied to the second time slot. In the case of K>2 and cyclic mapping is valid, the first and second SRS resource sets can be applied to the first and second time slots of K consecutive time slots, respectively, and the same SRS resource set mapping pattern can be followed by the remaining time slots of the K consecutive time slots. In the case of K>2 and sequential mapping is valid, the first SRS resource set can be applied to the first and second time slots of K consecutive time slots, and the second SRS resource set can be applied to the third and fourth time slots of K consecutive time slots, and the same SRS resource set mapping pattern can be followed by the remaining time slots of the K consecutive time slots. In the case of the code point "11" indicating the SRS resource set indication field, the first SRS resource set and the second SRS resource set can be associated with K consecutive time slots. For example, in the case of K=2, the second SRS resource set can be applied to the first time slot, and the first SRS resource set can be applied to the second time slot. In the case where K>2 and cyclic mapping is valid, the second and first SRS resource sets can be applied to the first and second time slots of K consecutive time slots, respectively, and the same SRS resource set mapping pattern can be followed by the remaining time slots of the K consecutive time slots. In the case where K>2 and sequential mapping is valid, the second SRS resource set can be applied to the first and second time slots of K consecutive time slots, and the first SRS resource set can be applied to the third and fourth time slots of K consecutive time slots, and the same SRS resource set mapping pattern can be followed by the remaining time slots of the K consecutive time slots. The SRS resource set indicator field can be included in one or both of DCI format 0_1 ​​and DCI format 0_2.The usage in SRS-ResourceSet can be set to 'codebook' or 'noncodebook' to set two SRS resource sets.

[0269] The SRS resource set indication field can determine one or two TCI states. For example, when the SRS resource set indication field indicates "00" or "01", one TCI state can be used. For example, when the SRS resource set indication field indicates "10" or "11", two TCI states can be used. One or two TCI states can be one or both of the UL TCI state (UL-TCIState) and the DL / Joint-TCI state (DLorJoint-TCIState). One or two TCI states can be one or both of the "indicated UL TCI state (UL-TCIState)" and the "indicated DL / Joint-TCI state (DLorJoint-TCIState)".

[0270] The SRS resource set indication field may determine whether to use one or both of the first TCI state and the second TCI state. For example, when the SRS resource set indication field indicates "00", the first TCI state may be used. For example, when the SRS resource set indication field indicates "01", the second TCI state may be used. For example, when the SRS resource set indication field indicates "10" or "11", the first TCI state and the second TCI state may be used.

[0271] Multiple TRPs (Transmission Reception Point: Transmission Reception Point or Transmit / Receive Point: Transmission / Receive Point) can be used. The base station device 3 can be composed of multiple TRPs (Multi-TRP). The terminal device 1 can be scheduled through two TRPs in one service cell. In multiple TRPs (Multi-TRP), one of the action modes of single DCI (single-DCI) and multiple DCIs (multi-DCI) can be used. In multiple TRPs, uplink control can be completed in the MAC layer and the physical layer. In multiple TRPs, downlink control can also be completed in the MAC layer and the physical layer. In single DCI mode, the terminal device 1 can be scheduled through the same DCI for two TRPs. In multiple DCI mode, the terminal device 1 can be scheduled through independent DCI from each TRP. In multiple DCI mode, each TRP in multiple TRPs can be specified by TRP information. That is, one TRP in multiple TRPs can be identified by one TRP information. TRP information can be used to select a TRP. In addition, the index of the CORESET resource pool may be associated with a control resource set (CORESET: Control Resource Set). The terminal device 1 may send a PUSCH based on the index of the CORESET resource pool. The TRP information may also be a CORESET pool index. The TRP information may be given through a TRP indication field.

[0272] The terminal device 1 can set the upper layer parameter TCI-State. For example, the terminal device 1 can set a list in the upper layer parameter PDSCH-Config. A list may include up to M upper layer parameters TCI-State. A list may be a list of up to M upper layer parameters TCI-State. The terminal device 1 can set a list for decoding (receiving) PDSCH based on the PDCCH with the DCI. M may depend on the terminal capability (UE capability). For example, M may also depend on the terminal capability maxNumberConfiguredTCIStatePerCC. TCI-State may be called TCI state.

[0273] Each TCI state (i.e., the upper layer parameter TCI-State) may include parameters for setting QCL (QCL relationship: Quasi co-location relationship). The QCL relationship may be the relationship between one or two downlink reference signals (downlink physical signals) and the DMRS (DMRS port) of the PDSCH. The QCL relationship may also be the relationship between one or two downlink reference signals (downlink physical signals) and the DMRS (DMRS port) of the PDCCH. The QCL relationship may also be the relationship between one or two downlink reference signals (downlink physical signals) and the CSI-RS (CSI-RS port) of a CSI-RS resource. For example, the QCL relationship between channel / signal A and channel / signal B may indicate that channel / signal A and channel / signal B are QCL.

[0274] The QCL relationship can be set by one or both of the upper layer parameters qcl-Type1 and the upper layer parameters qcl-Type2. For example, the QCL relationship can also be set by one or both of the upper layer parameters qcl-Type1 for the first downlink reference signal (DL RS) and the upper layer parameters qcl-Type2 for the second downlink reference signal. In the case where the first downlink reference signal is different from the second downlink reference signal, the QCL type of qcl-Type1 may also be different from the QCL type of qcl-Type2. The QCL type corresponding to each downlink reference signal can be given by the upper layer parameter qcl-Type in the upper layer parameter QCL-Info. The QCL type can be any one of type A, type B, type C and type D.

[0275] The terminal device 1 can set the upper layer parameter DLorJointTCIState. For example, the terminal device 1 can set a list in the upper layer parameter PDSCH-Config. A list can include up to 128 upper layer parameters DLorJointTCIState. A list can be a list of up to 128 upper layer parameters DLorJointTCIState. A list can be set to provide a reference signal. The upper layer parameter DLorJointTCIState can be set to provide a reference signal. A reference signal can be a reference signal for QCL of DMRS of PDSCH and DMRS of PDCCH. A list can also be set to provide a reference. The upper layer parameter DLorJointTCIState can also be set to provide a reference. A reference can be used to determine the uplink transmit spatial filter (UL TX spatialfilter). The uplink transmit spatial filter can be used for PUSCH, PUCCH and SRS. That is, a reference can be provided to determine the uplink transmit spatial filter for PUSCH, PUCCH and SRS. DLorJointTCIState may be referred to as TCI state, DL / JointTCI state or Unified TCI state. A list may be dl-OrJoint-TCIStateList.

[0276] The terminal device 1 can set the upper layer parameter UL-TCIState. For example, the terminal device 1 can set a list in the upper layer parameter BWP-UplinkDedicated. A list can include up to 64 upper layer parameters UL-TCIState. A list can be a list of up to 64 upper layer parameters UL-TCIState. Each UL-TCIState (or UL-TCIState setting) may include a parameter for setting a reference signal. For example, each UL-TCIState may include a parameter for setting a reference signal, wherein the reference signal is used to determine an uplink transmit spatial filter for a part or all of PUSCH, PUCCH, and SRS. A list may be an upper layer parameter ul-TCI-StateList. UL-TCIState may be referred to as a TCI state, a UL TCI state, or a unified TCI state.

[0277] UL-TCIState may also be an upper layer parameter TCI-UL-State. UL-TCIState may be set by the upper layer parameter TCI-UL-State. The upper layer parameter TCI-UL-State may associate one or two downlink reference signals with a corresponding QCL type.

[0278] When DLorJointTCIState or UL-TCIState is set, the terminal device 1 can send PUSCH according to the spatial relation. For example, the spatial relation can be a relation based on a reference signal (RS). For example, a reference signal can be a reference signal for determining an uplink transmit spatial filter. A reference signal can be a reference signal set by a qcl-Type set to typeD under the indicated DLorJointTCIState or the indicated UL-TCIState. The reference RS (Reference RS) in the indicated DLorJointTCIState can be a CSI-RS resource in the upper layer parameter NZP-CSI-RS-ResourceSet. The reference RS in the indicated UL-TCIState can be a CSI-RS resource in the NZP-CSI-RS-ResourceSet. The indicated UL-TCIState (Indicated UL-TCIState) can be a TCI state indicated by DCI format 1_1 or DCI format 1_2, a UL TCI state, or a unified TCI state. The indicated DLorJointTCIState may be a TCI state, a DL / Joint TCI state, or a unified TCI state indicated by DCI format 1_1 or DCI format 1_2.

[0279] DLorJointTCIState (e.g., upper layer parameter DLorJointTCIState) and UL-TCIState (e.g., upper layer parameter UL-TCIState) can be set in one BWP of one component carrier. In the case where there is no setting of DLorJointTCIState or UL-TCIState in one BWP, the terminal device 1 can apply the setting of DLorJointTCIState or UL-TCIState according to the reference BWP.

[0280] Terminal device 1 may not expect to set both the first upper layer parameter and the second upper layer parameter. The first upper layer parameter may be any one of TCI-State, SpatialRelationInfo and PUCCH-SpatialRelationInfo. The second upper layer parameter may also be any one of DLorJointTCIState and UL-TCIState. When TCI-State is set in any component carrier in a certain list, the second upper layer parameter may not be set in any component carrier in the same frequency band in the certain list. The certain list may be set by an upper layer parameter simultaneousTCI-UpdateList1, an upper layer parameter simultaaneousTCI-UpdateList2, an upper layer parameter simultaneousSpatial-UpdatedList1 or an upper layer parameter simultaneousSpatial-UpdatedList2.

[0281] Terminal device 1 can receive an activation command. The activation command can be used to map up to 8 "TCI states and one or both of the TCI state pairs" to the code points of the DCI field 'Transmission Configuration Indication'. A TCI state pair (joint TCI state) can be accompanied by a TCI state (DL TCI state) for multiple downlink channels / signals and a TCI state (UL TCI state) for multiple uplink channels / signals. Multiple downlink channels / signals may be part or all of PDSCH, PDCCH, and CSI-RS. Multiple uplink channels / signals may be part or all of PUSCH, PUCCH, and SRS. DCI (DCI format) may be composed of one or more DCI fields. For example, DCI (DCI format) may also be constructed to include a TCI field ('Transmission Configuration Indication' field).

[0282] In the case where the first set of one or more TCI state IDs is activated in the second set, the first set may be applied to the downlink BWP in the indicated component carrier. In the case where the first set of one or more TCI state IDs is activated in the third set, the first set may be applied to the downlink BWP and uplink BWP in the indicated component carrier. The second set may be a set of one or both of the one or more component carriers and the one or more downlink BWPs. The third set may be a set of part or all of the one or more component carriers, the one or more downlink BWPs, and the one or more uplink BWPs.

[0283] When the activation command maps one or both of DLorJointTCIState and UL-TCIState to one TCI code point (code point of DCI field 'Transmission Configuration Indication'), the terminal device 1 can apply the indicated DLorJointTCIState (Indicated DLorJointTCIState) and the indicated UL-TCIState (Indicated UL-TCIState).

[0284] Terminal device 1 may receive DCI format 1_1 / 1_2 providing an indicated DLorJointTCIState or an indicated UL-TCIState. The DCI format may not be accompanied by a downlink allocation. For example, in the case where DCI format 1_1 / 1_2 is not accompanied by a downlink allocation, terminal device 1 may assume some or all of the following: CS-RNTI is used to scramble the CRC used for the DCI; RV (Redundancy version) is all 1; MCS is all 1; NDI is 0; all are set to 0 for FDRA type 0; all are set to 1 for FDRA type 1.

[0285] The terminal device 1 may receive an upper layer setting. After the terminal device 1 receives the first setting of DLorJoint-TCIState and before applying an indicated TCI state from the set TCI state, the terminal device 1 may assume that the DMRS of the PDSCH, the DMRS of the PDCCH, and the CSI-RS of the indicated TCI state are applied as SS / PBCH blocks and QCL.

[0286] After the terminal device 1 receives the first setting of DLorJoint-TCIState or UL-TCIState and before applying an indicated TCI state from the set TCI state, the terminal device 1 may also assume that the first uplink transmit spatial filter (UL TX spatial filter) for PUSCH, PUCCH, and SRS to which the indicated TCI state is applied is the same as the second uplink transmit spatial filter. The second uplink transmit spatial filter may be an uplink transmit spatial filter for PUSCH transmission scheduled by a random access response grant in an initial access procedure.

[0287] After the terminal device 1 receives the setting of DLorJoint-TCIState and before applying an "indicated TCI state" from the set TCI state, the DMRS of the PDSCH, the DMRS of the PDCCH and the CSI-RS to which the indicated TCI state is applied may be SS / PBCH blocks or CSI-RS resources and QCL. For example, the SS / PBCH blocks or CSI-RS resources may be identified in a random access process started by reconfiguration with synchronization. For example, the terminal device 1 may receive the setting of DLorJoint-TCIState as part of reconfiguration with synchronization.

[0288] After the terminal device 1 receives the setting of DLorJoint-TCIState or UL-TCIState and before applying an "indicated TCI state" from the set TCI state, it can be assumed that the first uplink transmit spatial filter for PUSCH, PUCCH and SRS to which the indicated TCI state is applied is the same as the second uplink transmit spatial filter. The second uplink transmit spatial filter can be an uplink transmit spatial filter for PUSCH transmission scheduled by a random access response grant in a random access procedure started by resetting with synchronization.

[0289] DLorJoint-TCIState can be used as the "indicated TCI state". For example, the terminal device 1 can obtain the QCL assumption (QCL relationship, QCL) from the "set TCI state" for the DMRS of PDSCH, the DMRS of PDCCH and the CSI-RS to which the "indicated TCI state" is applied. The "indicated TCI state" can be applied to the DMRS of PDSCH, the DMRS of PDCCH and the CSI-RS. The "indicated TCI state" can also be applied to the DMRS of PDSCH, the DMRS of PDCCH, the CSI-RS, PUSCH, PUCCH and SRS.

[0290] UL-TCIState may be used as the “indicated TCI state.” For example, the terminal device 1 may determine the uplink transmission spatial filter from the “set TCI state” for the PUSCH, PUCCH, and SRS to which the “indicated TCI state” is applied.

[0291] In the case where the terminal device 1 sends the first OFDM symbol and the first "indicated TCI state" is different from the second "indicated TCI state", the first "indicated TCI state" may be applied from the first time slot. The first OFDM symbol may be the OFDM symbol at the end of the PUCCH with HARQ-ACK information. The first OFDM symbol may also be the OFDM symbol at the end of the PUSCH with HARQ-ACK information. The HARQ-ACK information may be the HARQ-ACK information corresponding to the DCI that transmits the TCI state indication (TCI State indication) in the absence of downlink allocation. The HARQ-ACK information may also be the HARQ-ACK information corresponding to the PDSCH scheduled by the DCI that transmits the TCI state indication. The second indicated TCI state may be indicated before (before) the first indicated TCI state. The first time slot may be the first time slot after at least BeamAppTime symbols from the second OFDM symbol. BeamAppTime may be the number of OFDM symbols. BeamAppTime may be set by upper layer parameters. BeamAppTime may also be determined by terminal capabilities. The second OFDM symbol may be the first OFDM symbol.The indicated TCI state may be an indicated DLorJointTCIState or an indicated UL-TCIState.

[0292] In the case where the upper layer parameter PDCCH-Config includes two different values ​​of the CORESET pool index (CORESET Pool Index or coresetPoolIndex), the terminal device 1 can receive an activation command for the CORESET associated with each CORESET pool index. The activation command can be used to map up to 8 TCI states to the code point of the DCI field 'Transmission Setting Indication'. In the case where a set of TCI state IDs is activated for one CORESET pool index, the "activated TCI state" corresponding to the one CORESET pool index can be associated with a physical cell ID, and the "activated TCI state" corresponding to a CORESET pool index different from the one CORESET pool index can be associated with a physical cell ID different from the one physical cell ID. The activation command can be received as a MAC CE. One or more CORESETs can be set in a BWP. A CORESET can correspond to a CORESET pool index of '0' or '1'.

[0293] One code point of the DCI field 'Transmission Setting Indication' may include two TCI states. One code point of the DCI field 'Transmission Setting Indication' may include two "TCI state pairs". Terminal device 1 may receive an activation command. The activation command is used to map up to 8 combinations of one or two TCI states to the code point of the DCI field 'Transmission Setting Indication'. The activation command may also be used to map up to 8 combinations of one or two "TCI state pairs" to the code mapping of the DCI field 'Transmission Setting Indication'. Terminal device 1 may not expect to receive more than 8 TCI states in the activation command. Terminal device 1 may not expect to receive more than 8 "TCI state pairs" in the activation command.

[0294] The indicated TCI state (eg, indicated DLorJointTCIState) may not be applied in periodic CSI-RS and semi-persistent CSI-RS.

[0295] The FDM (Frequency division multiplexing) method (fdmScheme) can be applied to one or both of PDSCH and PUSCH. The FDM method A (fdmSchemeA) can be applied to one or both of PDSCH and PUSCH. The FDM method B (fdmSchemeB) can be applied to one or both of PDSCH and PUSCH. The TDM (Time division multiplexing) method (tdmScheme) can be applied to one or both of PDSCH and PUSCH. The TDM method A (tdmSchemeA) can be applied to one or both of PDSCH and PUSCH. The TDM method B (tdmSchemeB) can be applied to one or both of PDSCH and PUSCH. fdmScheme can be a general term for fdmSchemeA and fdmSchemeB. tdmScheme can be a general term for tdmSchemeA and tdmSchemeB.

[0296] When 'fdmSchemeA' is set in the terminal device 1 and two TCI states are indicated by one DCI, the terminal device 1 can receive one PDSCH transmission opportunity of one transport block or send one PUSCH transmission opportunity in each TCI state. Each TCI state can be associated with non-repetitive frequency domain resource allocation. When 'fdmSchemeB' is set in the terminal device 1 and two TCI states are indicated by one DCI, the terminal device 1 can receive two PDSCH transmission opportunities of the same transport block or send two PUSCH transmission opportunities in each TCI state. Each TCI state can be associated with the first PDSCH transmission opportunity of the two PDSCH transmission opportunities. For the second PDSCH transmission opportunity of the two PDSCH transmission opportunities, the first PDSCH transmission opportunity can have non-repetitive frequency domain resource allocation. Each TCI state can be associated with the first PUSCH transmission opportunity of the two PUSCH transmission opportunities. For the second PUSCH transmission opportunity of the two PUSCH transmission opportunities, the first PUSCH transmission opportunity can also have non-repetitive frequency domain resource allocation.

[0297] When 'tdmSchemeA' is set in the terminal device 1 and two TCI states are indicated by one DCI, the terminal device 1 can receive two PDSCH transmission opportunities of the same transport block or send two PUSCH transmission opportunities in each TCI state. Each TCI state can be associated with the first PDSCH transmission opportunity of the two PDSCH transmission opportunities. For the second PDSCH transmission opportunity of the two PDSCH transmission opportunities, the first PDSCH transmission opportunity can have non-repetitive time domain resource allocation. Both of the two PDSCH transmission opportunities can be in one time slot. Each TCI state can be associated with the first PUSCH transmission opportunity of the two PUSCH transmission opportunities. For the second PUSCH transmission opportunity of the two PUSCH transmission opportunities, the first PUSCH transmission opportunity can have non-repetitive time domain resource allocation. Both of the two PUSCH transmission opportunities can be in one time slot.

[0298] MAC PDU (MAC protocol data unit) may be a bit string whose length is byte-aligned (i.e., a multiple of 8 bits). MAC SDU (MAC service data unit) may be a bit string whose length is byte-aligned (i.e., a multiple of 8 bits). A MAC SDU may be included starting from the first bit of a MAC PDU. MAC CE may be a bit string whose length is byte-aligned (i.e., a multiple of 8 bits). MAC subheader may be a bit string whose length is byte-aligned (i.e., a multiple of 8 bits). Each MAC subheader may be arranged immediately before the corresponding MAC SDU, MAC CE, or padding.

[0299] MAC PDU (MAC protocol data unit) can be composed of one or more MAC sub-PDUs. Each MAC sub-PDU can be composed of a MAC sub-header. Each MAC sub-PDU can also be composed of a MAC sub-header and a MAC SDU (Service data unit). Each MAC sub-PDU can also be composed of a MAC sub-header and a MAC CE. Each MAC sub-PDU can also be composed of a MAC sub-header and padding. MAC SDU can be a variable size. Each MAC sub-header can correspond to a MAC SDU, a MAC CE or padding. A MAC PDU can also be a transport block.

[0300] The first MAC CE may be an activation command A. The first MAC CE may be a MAC CE for activation (Activation) or deactivation (Deactivation) of the TCI state for PDSCH (terminal-specific (UE-specific) PDSCH). The MAC CE for activation / deactivation of the TCI state for PDSCH may be identified by the first MAC subheader. For example, the first MAC subheader may be accompanied by a first LCID (Logical channel ID). For example, the value of the first LCID may be "TCI States Activation / Deactivation for UE-specific PDSCH".

[0301] Fig. 9 is a diagram showing an example of an activation command A of one scheme of the present embodiment. The Serving cell ID field may indicate an identifier of a serving cell to which the first MAC CE is applied. The BWP ID field may indicate a DL BWP to which the MAC CE is applied as a code point of a 'bandwidth part indicator field' of a DCI. In the case where the first MAC CE is applied to a set of multiple serving cells, the BWP ID field may be ignored. "T i The "T" field can indicate the activation / deactivation status of the TCI state with TCI state ID i. i " field is set to 1 to indicate that the TCI state with TCI state ID i is activated. i"The field is set to 1 to indicate that the TCI state with TCI state ID i is mapped to a code point of the 'Transmission Configuration Indication field' of the DCI. i " field is set to 0 to indicate that the TCI state with TCI state ID i is deactivated. i " field is set to 1 to indicate that the TCI state with TCI state ID i is not mapped to a code point of the 'Transmission Setting Indication Field' of the DCI. i can be a TCI state ID (or TCI-StateID). The TCI state can be accompanied by a TCI state ID. The maximum number of "activated TCI states" can be 8. The field of CORESET Pool ID can indicate that the first mapping is inherent to the CORESET ID (ControlResourceSetId) set by the CORESET Pool ID (CORESET Pool Index). The first mapping can be the "activated TCI state" with the code point of the 'Transmission Setting Indication Field' of the DCI. i " field is set to indicate the mapping of the code point of the DCI 'Transmission Setting Indication'. Setting the field of the CORESET pool ID to 1 can indicate that the first MAC CE is applied to the downlink transmission scheduled by the CORESET with the CORESET pool ID (CORESET pool index) with the value 1. Setting the field of the CORESET pool ID to 0 can indicate that the first MAC CE is applied to the downlink transmission scheduled by the CORESET with the CORESET pool ID (CORESET pool index) with the value 0. If the CORESET pool index (coresetPoolIndex) is not set, the field of the CORESET pool ID in the first MAC CE can be ignored.

[0302] The second MAC CE may be an activation command B. The second MAC CE may be a MAC CE used for activation (Activation) or deactivation (Deactivation) of the TCI state of PDSCH (UE-specific PDSCH). The MAC CE used for activation / deactivation of the TCI state of PDSCH may be identified by the second MAC subheader. For example, the second MAC subheader may be accompanied by a second LCID (Logical channel ID). The second LCID may be an eLCID. For example, the value of the second LCID may be "Enhanced TCI States Activation / Deactivation for UE-specific PDSCH".

[0303] Fig.10 2 is a diagram showing an example of an activation command B according to one embodiment of the present invention. i " field can indicate whether there is a TCI status ID i,2 For example, in the case of "C i " field is set to 1, the TCI status ID may be present i,2 For example, in the case of "C i " field is set to 0, the TCI status ID may not exist i,2 TCI Status ID i,j The field may indicate the TCI state identified by the TCI state ID (TCI-StateId). TCI state ID i,j It can represent the jth TCI state indicated by the i-th code point of the DCI 'Transmission Configuration Indication' field. TCI State ID i,2 Can be based on "C i ” field is optional. i can be the index of the code point of the DCI 'Transmission configuration indicatin' field. j can be 1 or 2.

[0304] The third MAC CE may be an activation command C. The third MAC CE may be a MAC CE for activation (Activation) or deactivation (Deactivation) of a unified TCI state. The MAC CE for activation / deactivation of a unified TCI state may be identified by a third MAC subheader. For example, the third MAC subheader may be accompanied by a third LCID (Logicalchannel ID: Logical Channel ID). The third LCID may be an eLCID. For example, the value of the third LCID may be "Unified TCI States Activation / Deactivation MAC CE".

[0305] Fig.11 1 is a diagram showing an example of an activation command C of a scheme of the present embodiment. The DL BWP ID field may indicate a downlink BWP to which a MAC CE is applied as a code point of a DCI 'bandwidth part indicator' field. The UL BWP ID field may indicate an uplink BWP to which a MAC CE is applied as a code point of a DCI 'bandwidth part indicator' field.i " can indicate whether each TCI code point has multiple TCI states or a single TCI state. For example, in the "P i " field is set to 1, the i-th TCI code point may include both the DL TCI state and the UL TCI state. For example, in the case of "P i In the case where the "D / U" field is set to 0, the i-th TCI code point may include one of the DL TCI state and the UL TCI state. The "D / U" field may indicate whether the TCI state ID in the same octet is used for joint (both DL and UL) / DL or for UL. For example, in the case where the "D / U" field is set to 1, the TCI state ID in the same octet may be used for DL / joint. For example, in the case where the "D / U" field is set to 0, the TCI state ID in the same octet may be used for UL. The "TCI state ID" field may indicate a TCI state identified by a TCI state ID (TCI-StateId). In the case where the "D / U" field is set to 1, a "TCI state ID" having a length of 7 bits may be used. In the case where the "D / U" field is set to 0, the most significant bit of the "TCI state ID" may be regarded as reserved, and the remaining 6 bits may indicate the ID of the UL-TCIState (UL-TCIState-Id). DL The TCI state may be a TCI state applied to part or all of the PDSCH, PDCCH, and CSI-RS. The UL TCI state may be a TCI state applied to part or all of the PUSCH, PUCCH, and SRS. The joint TCI state may be a TCI state representing both the DL TCI state and the UL TCI state. DLorJointTCIState may be a DL TCI state or a joint TCI state. UL-TCIState may be a UL TCI state. The DLTCI state may be a TCI state for DL. The joint TCI state may be a TCI state for both DL and UL. The ULTCI state may be a TCI state for UL. The TCI code point may be a code point of the DCI 'Transmission Setting Indication' field. The "R" field in the MACCE may be a reserved bit. The reserved bit may be set to 0.

[0306] The fourth MAC CE may be an activation command D. The fifth MAC CE may be an activation command E. The fourth MAC CE may be a MAC CE for activation (Activation) or deactivation (Deactivation) of a unified TCI state. For example, the fourth MAC CE may also be a MAC CE for activation (Activation) or deactivation (Deactivation) of an extended unified TCI state. The fifth MAC CE may be a MAC CE for activation (Activation) or deactivation (Deactivation) of a unified TCI state. For example, the fifth MAC CE may be a MAC CE for activation (Activation) or deactivation (Deactivation) of an extended unified TCI state. The MAC CE for activation / deactivation of a unified TCI state may be identified by a fourth MAC subheader. The MAC CE for activation / deactivation of a unified TCI state may also be identified by a fifth MAC subheader. For example, the fourth MAC subheader may be accompanied by a fourth LCID (Logical channel ID). For example, the fifth MAC subheader may be accompanied by a fifth LCID (Logical channel ID). The fourth LCID may be an eLCID. The fifth LCID may be an eLCID. For example, the value of the fourth LCID may be “Enhanced unified TCI States Activation / Deactivation MAC CE 1”. For example, the value of the fifth LCID may be “Enhanced unified TCI States Activation / Deactivation MAC CE 2”.

[0307] Fig.12 is a diagram showing an example of an activation command D of a scheme of the present embodiment. The field of the serving cell ID may indicate an identifier of a serving cell to which the fourth MAC CE is applied. The field of the DL BWP ID may indicate a downlink BWP to which the fourth MAC CE is applied. The field of the DL BWP ID may indicate a downlink BWP to which the fourth MAC CE is applied as a code point of the DCI 'partial bandwidth indicator' field. The field of the UL BWP ID may indicate an uplink BWP to which the fourth MAC CE is applied. The field of the UL BWP ID may indicate an uplink BWP to which the fourth MAC CE is applied as a code point of the DCI 'partial bandwidth indicator' field. "P i" can indicate whether each TCI code point has multiple TCI states or a single TCI state. For example, in the "P i " field is set to 1, the i-th TCI code point may include both the DL TCI state and the UL TCI state. For example, in the case of "P i " field is set to 0, the i-th TCI code point can include either the DL TCI state or the UL TCI state. i " field can indicate whether each TCI code point is used for joint (both DL and UL) / DL or UL. For example, in the "D / U i " field is set to 1, the i-th TCI code point can be used for DL / Joint. For example, in the case of "D / U i " field is set to 0, the i-th TCI code point can be used for UL. j The "T" field can indicate the activation / deactivation status of the TCI state with TCI state ID j. j " field is set to 1 to indicate that the TCI state with TCI state ID j is activated. j " field is set to 1 to indicate that the TCI state with TCI state ID j is mapped to a code point of the 'Transmission Setting Indication Field' of the DCI. j " field is set to 0 to indicate that the TCI state with TCI state ID j is deactivated. j " is set to 1 to indicate that the TCI state with TCI state ID j is not mapped to a code point of the 'Transmission Setting Indication Field' of the DCI. j can be a UL TCI state ID (UL-TCIState-Id) or a DL / Joint TCI state ID (DLorJoint-TCIState-Id). The maximum number of UL TCI state IDs can be 64. The maximum number of DL / Joint TCI state IDs can be 128. j can be {0...63}. j can also be {0...127. j can also be {0...191}. For example, in the case where the i-th TCI code point corresponds to the UL TCI state, "T j " can indicate the activation / deactivation status of the TCI state with TCI state ID j-128. For example, when the i-th TCI code point corresponds to the DL TCI state or the joint TCI state, "T j" can indicate the activation / deactivation status of the TCI state with TCI state ID j-64. For example, in the case where the i-th TCI code point corresponds to the UL TCI state, "T j " field is set to 1 to indicate that the TCI state with TCI state ID j-128 is activated. For example, in the case where the i-th TCI code point corresponds to the UL TCI state, "T j " field is set to 1 to indicate that the TCI state with TCI state ID j-128 is mapped to the i-th TCI code point. For example, when the i-th TCI code point corresponds to the DL TCI state or the joint TCI state, "T j " field is set to 1 to indicate that the TCI state with TCI state ID j-64 is activated. For example, in the case where the i-th TCI code point corresponds to the DL TCI state or the joint TCI state, "T j The field of " is set to 1 to indicate that the TCI state with TCI state ID j-64 is mapped to the i-th TCI code point. The field of CORESET pool ID can indicate that the second mapping is inherent to the CORESET ID (ControlResourceSetId) set by CORESET pool ID (CORESET pool index). The second mapping can be the "activated TCI state" with the TCI state ID j-64 set by "T i " field is set to the mapping of the code point of the DCI 'transmission setting indication'. Setting the field of the CORESET pool ID to 1 can indicate that the MAC CE is applied to the downlink transmission or uplink transmission scheduled by the CORESET with the CORESET pool ID (CORESET pool index) with the value 1. Setting the field of the CORESET pool ID to 0 can indicate that the MAC CE is applied to the downlink transmission or uplink transmission scheduled by the CORESET with the CORESET pool ID (CORESET pool index) with the value 0. If the CORESET pool index (coresetPoolIndex) is not set, the field of the CORESET pool ID in the fourth MAC CE can be ignored.

[0308] Fig.13 1 is a diagram showing an example of an activation instruction E according to one aspect of the present embodiment. Fig.13 The CORESET pool ID field in can be reserved. i,j " can indicate whether each TCI code point has multiple TCI states or a single TCI state. For example, in the "P i,j" field is set to 1, the jth TCI state in the i-th TCI code point can be two (eg, DL TCI state and UL TCI state). i,j " field is set to 0, the jth TCI state in the i-th TCI code point can be one (for example, DL TCI state transmission or UL TCI state). "D / U j " field can indicate whether the TCI state ID in the same octet is used for joint (both DL and UL) / DL or UL. j " field can indicate whether the TCI state ID in the same octet is for joint (both DL and UL) / DL or for UL. For example, in the case of "D / U j " field is set to 1, the TCI State ID in the same octet can be used for DL / Joint. For example, in the case of "D / U j " field is set to 0, the same TCI State ID in octet can be used for UL. "TCI State ID i,j " field can indicate the TCI state identified by DL / Joint TCI State ID (TCI-StateId) or UL TCI State ID (UL-TCIState-Id). j " field is set to 1, the 7-bit "TCI Status ID i,j In the "D / U j " field is set to 0, "TCI Status ID i,j The topmost bit (Most significant bit) of " can be regarded as reserved, and the remaining 6 bits can represent the ID of UL-TCIState (UL TCI state Id, UL-TCIState-Id).

[0309] Fig.13The j in may correspond to a CORESET pool ID (CORESET pool index). For example, j=1 may correspond to a CORESET pool ID (CORESET pool index)=0. For example, j=2 may correspond to a CORESET pool ID (CORESET pool index)=1. For example, j=0 may correspond to a CORESET pool ID (CORESET pool index)=0. For example, j=1 may correspond to a CORESET pool ID (CORESET pool index)=1. Whether j corresponds to a CORESET pool ID (CORESET pool index) may be determined by the "J" field. For example, when the "J" field is set to 1, j may correspond to a CORESET pool ID (CORESET pool index). For example, when the "J" field is set to 0, j may correspond to an index of a TCI state in a code point. "P i，j " may indicate whether each TCI code point of the DCI associated with the CORESET pool ID corresponding to j has multiple TCI states or one TCI state. For example, in the i，j " field is set to 1, it can correspond to both the DL TCI state and the UL TCI state of the i-th TCI code point of the DCI associated with the CORESET pool ID corresponding to j. For example, in the case of "P i，j " When the field is set to 0, it can correspond to one of the DL TCI state and UL TCI state of the i-th TCI code point of the DCI associated with the CORESET pool ID corresponding to j. When the CORESET pool index (upper layer parameter coresetPoolIndex) is not set, j may not correspond to the CORESET pool ID.

[0310] The terminal device 1 can receive an activation command. The activation command may be a general term for activation command A, activation command B, activation command C, activation command D, and activation command E.

[0311] Uplink Power Control (Uplink Power Control) can determine the power (transmit power) used for PUSCH, PUCCH, SRS, and PRACH. The terminal device can include a transmit power control unit.

[0312] The terminal device 1 can determine the transmission power P of the PUSCH in the PUSCH transmission opportunity i. PUSCH，b，f，c (i, j, q d , 1). The transmit power control unit may determine the transmit power for the PUSCH. For example, the transmit power control unit may determine the transmit power P of the PUSCH in the PUSCH transmission opportunity i. PUSCH，b，f，c (i, j, q d, l). b may be an index for specifying an activated BWP or an activated uplink BWP in one or more BWPs. f may be an index for specifying a carrier in one or more carriers. c may be an index for specifying a serving cell in one or more serving cells. j may be an index for specifying a parameter set in one or more parameter sets set by upper layer parameters. For example, to determine the transmit power P of a PUSCH PUSCH，b，f，c (i, j, q d , l), the parameter set specified by index j can be used. q d It may be an index for specifying a reference signal among one or more reference signals. For example, the reference signal may be a physical signal for channel measurement. For example, the reference signal may also be an SS / PBCH block or a CSI-RS.

[0313] l can be a power control state (Power control state, Closed loop index). l can also be an index for a power control adjustment state (Power control adjustment state). l can also be a value for specifying a power control adjustment state. The terminal device 1 can maintain two power control states. For example, the terminal device 1 can maintain power control states of l=0 and l=1. For example, when l is 0, the terminal device 1 can maintain one power control state. For example, when l is 1, the terminal device 1 can maintain two power control states. The power control state can be indicated by the DCI format. For example, the transmit power for the PUSCH scheduled by the DCI format can correspond to the power control state indicated by the DCI format. For example, the power control state can be indicated by the TRP indication field in the DCI format. For example, when the TRP indication field indicates the first value or the second value, l=0 can be used. For example, when the TRP indication field indicates the third value or the fourth value, l=1 can be used. For example, the power control state can be indicated by the SRS resource set indication field in the DCI format.

[0314] Power control state 1 can be indicated by DL / joint TCI state or UL TCI state. Power control state 1 can be indicated by "indicated TCI state".

[0315] The PUSCH, PUCCH, and SRS may correspond to one or both of a first power control state (eg, l=0) and a second power control state (eg, l=1).

[0316] When the terminal device 1 transmits a PUSCH in the activated BWP b of the carrier f of the serving cell c, the transmission power P of the PUSCH is PUSCH，b，f，c(i, j, q d , l) may be determined based at least on the parameter set specified by j and the power control adjustment state specified by power control state l. PUSCH，b，f，c (i, j, q d , l) can be determined based on Formula 1. [Formula 1]

[0317] PUSCH transmission opportunity i can be indexed by slot n μ s,f Definition. The PUSCH transmission opportunity i may be a time slot. For example, the PUSCH transmission opportunity i may be a time timing for performing transmit power control. For example, in the case where the PUSCH transmission opportunity i is the first time slot, transmit power control may be performed in the first time slot. The PUSCH transmission opportunity i for PUSCH repetition type B may be a nominal repetition. The PUSCH transmission opportunity i may be determined based on the time slot index, the starting OFDM symbol within the time slot, and the number of consecutive OFDM symbols.

[0318] When j is 0, P PUSCH，b，f，c (i, j, qd, l) can be the transmit power for PUSCH scheduled by random access response grant. When j is 1, P PUSCH，b，f，c (i, j, qd, l) may also be the transmit power for PUSCH scheduled by the set uplink grant. PUSCH，b，f，c (i, j, qd, l) may be the transmission power for PUSCH scheduled by DCI. When j is greater than 1, l may be indicated by the DCI for scheduling.

[0319] P O_PUSCH，b，f，c (j) can be the target received power. O_PUSCH，b，f，c (j) can also be determined based on Formula 2. O_PUSCH，b，f，c (j) may also be determined based on at least the DL / Joint TCI state or the UL TCI state. O_PUSCH，b，f，c (j) may be determined based on the DL / joint TCI state or the UL TCI state corresponding to the one power control state. [Formula 2] P O_PUSCH，b，f，c (j) = P O_NOMINAL_PUSCH，f，c (j)+P O_UE_PUSCH，b，f，c (j)

[0320] P O_NOMINAL_PUSCH，f，c (j) can be provided by upper layer parameters. O_UE_PUSCH，b，f，c(j) can be provided by upper layer parameters. PO_UE_PUSCH, b, f, c (0) can be 0. P O_UE_PUSCH，b，f，c (j) may be determined based on at least a DL / joint TCI state or a UL TCI state. O_UE_PUSCH，b，f，c (j) may be determined based on the DL / joint TCI state or the UL TCI state corresponding to the one power control state.

[0321] M PUSCH RB，b，f，c (j) may be the number of resource blocks allocated to the PUSCH. The transmit power of the PUSCH may be based at least on the M PUSCH RB，b，f，c (j) to determine P PUSCH，b，f，c (i, j, q d , l).

[0322] α b，f，c (j) can be a scaling factor. For example, α b，f，c (j) can be less than 1. For example, α b，f，c (j) can be any one of 0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1. b，f，c (j) can be provided by upper layer parameters. b，f，c (j) may be determined based at least on a TCI state (eg, UL TCI state). b，f，c (j) may be determined based on the DL / joint TCI state or the UL TCI state corresponding to the one power control state.

[0323] PL b，f，c (q d ) can be the propagation path loss (Path Loss). For example, PL b，f，c (q d ) may be a value estimated based on the reference signal specified by qd. The propagation path loss may be a propagation path loss of a downlink. In addition, the propagation path loss may also be a propagation path loss of an uplink. d The q corresponding to a power control state may be determined based on at least a TCI state (eg, a UL TCI state). d It can be determined based on the DL / joint TCI state or the UL TCI state corresponding to the one power control state.

[0324] Δ TF，b，f，c (i) It can be a transport format. TF，b，f，c (i) It can be the power change amount based on the number of information bits per resource element. ΔTF，b，f，c (i) can be determined based on Formula 3. For example, when the number of transmission layers is greater than 1, Δ TF，b，f，c (i) can also be 0. For example, when DMRS bundling is applied, Δ TF，b，f，c (i) can also be 0. [Formula 3]

[0325] BPRE may be the number of information bits in one resource element of one or more resource elements. For example, BPRE may also be the number of information bits per resource element. Here, the information bits may include a transport block, a CRC sequence attached to the transport block, and part or all of a CRC sequence attached to each of one or more code blocks given by segmentation of the transport block. For example, for a PUSCH for transmission of a transport block, the BPRE may be determined based on the size of the transport block and the number of resource elements used for the PUSCH. BPRE may be determined based on Formula 4. For example, in the case where PUSCH is used to transmit a transport block distributed by UL-SCH, BPRE may be determined based on Formula 4. [Formula 4]

[0326] C can be the number of code blocks. r It can be the size of the rth code block. Here, the size of the rth code block can be determined by the sum of the number of bits of the rth code block and the number of bits of the CRC sequence attached to the rth code block. RE Can be the number of resource elements. N RE It can be determined based on Formula 5. [Formula 5]

[0327] N PUSCH symb，b，f，c (i) may be the number of OFDM symbols. For example, it may be the number of OFDM symbols in PUSCH transmission opportunity i. For example, it may be the number of OFDM symbols for PUSCH transmitted in PUSCH transmission opportunity i. In Formula 5, N may be 1. N may be provided by an upper layer parameter.

[0328] N RB sc，data (i, j) may be the number of subcarriers used for PUSCH in OFDM symbol j. In addition, in determining the number of subcarriers, subcarriers to which DMRS and PTRS are mapped may not be included.

[0329] The BPRE may be determined based on Formula 6. For example, in the case where the PUSCH is used to deliver uplink control information, the BPRE may be determined based on Formula 6. [Formula 6]

[0330] Q m It can be the modulation order of PUSCH. R can be the maximum coding rate of PUSCH (or simply referred to as coding rate).

[0331] K s It can be 1.25 or 0. When the upper layer parameters are set, K s It can also be 1.25. If this upper layer parameter is not set, K s It can also be 0. s When Δ is 0, TF，b，f，c (i) can be 0.

[0332] In case PUSCH is used to deliver transport blocks delivered by UL-SCH, β PUSCH offset Can be 1. In the case where PUSCH is used to transmit uplink control information, β PUSCH offset It may not be 1. PUSCH offset It may be determined based at least on the size of the uplink control information.

[0333] Closed loop power value f b，f，c (i, l) can be determined based on Formula 7. b，f，c (i, l) may be determined based on the TPC command field. The TPC command field may be included in the DCI. b，f，c (i, l) may be determined based on Formula 7 when the first upper layer parameter is not provided. The first upper layer parameter may be an upper layer parameter tpc-Accumulation. The first upper layer parameter may also be a dedicated upper layer parameter. The first upper layer parameter may be provided in the upper layer parameter PUSCH-Config. The first upper layer parameter may also not be provided in the upper layer parameter ConfiguredGrantConfig. f may be determined in PUSCH transmission opportunity i b，f，c (i, l). Closed loop power value f b，f，c (i, l) can be determined based on Formula 8. b，f，c (i, l) can be determined based on Formula 8 when the first upper layer parameters are provided. [Formula 7] [Formula 8] f b，f,c (i,l)=δ PUSCH,b,f,c (i,l)

[0334] δ PUSCH，b，f，c (m, l) and δ PUSCH，b，f，c (i, l) can be the value of the TPC command. PUSCH，b，f，c (m, l) and δ PUSCH，b，f，c (i, l) may be a value specified by the value of the TPC command field in the DCI. The DCI may be a DCI for scheduling a PUSCH. The DCI may be a DCI corresponding to DCI format 2_2 with a CRC scrambled by TPC-PUSCH-RNTI. The DCI may also be a DCI corresponding to DCI format 2_3. For example, when the value of the TPC command field is 0, δ PUSCH，b，f，c (m, l) may be -1dB. dB may be decibel. For example, when the value of the TPC command field is 1, δ PUSCH，b，f，c (m, l) can be 0dB. For example, when the value of the TPC command field is 2, δ PUSCH，b，f，c (m, l) can be 1 dB. For example, when the value of the TPC command field is 3, δ PUSCH，b，f，c (m, l) can be 3dB. For example, when the value of the TPC command field is 0, δ PUSCH，b，f，c (i, l) can be -4dB. For example, when the value of the TPC command field is 1, δ PUSCH，b，f，c (i, l) may be -1 dB. For example, when the value of the TPC command field is 2, δPUSCH,b,f,c(i, l) may be 1 dB. For example, when the value of the TPC command field is 3, δ PUSCH，b，f，c (i, l) can be 4dB.

[0335] δ corresponding to a power control state PUSCH，b，f，c (m, l) and δ PUSCH，b，f，c (i, l) may be determined based on the TPC command field corresponding to the one power control state. For example, δ corresponding to the first power control state (eg, l=0) PUSCH，b，f，c (m, l) and δ PUSCH，b，f，c (i, l) may be determined based on the first TPC command field. δ corresponding to the second power control state (eg, l=1) PUSCH，b，f，c (m, l) and δ PUSCH，b，f，c(i, l) may be determined based on the second TPC command field. One DCI format may include both the first TPC command field and the second TPC command field. For example, when the upper layer parameter SecondTPCFieldDCI is set, one DCI format may include both the first TPC command field and the second TPC command field. For example, when the upper layer parameter SecondTPCFieldDCI is set, the power control parameter set may correspond to one power control state. For example, when the upper layer parameter SecondTPCFieldDCI is not set, the power control parameter set may not correspond to one power control state. q d , α b，f，c (j), P O_UE_PUSCH，b，f，c (j) and P O_PUSCH，b，f，c Part or all of (j) may be referred to as a power control parameter set. The power control parameter set may be provided based on the indicated DL or Joint-TCIState or the indicated UL-TCIState. For example, the power control parameter set may be provided by one or both of a first upper layer parameter and a second upper layer parameter associated with the indicated DL or Joint-TCIState or the indicated UL-TCIState. The first upper layer parameter may be p0-Alpha-CLID-PUSCH-Set or ul-powerControl. The second upper layer parameter may be PL-RS or pathlossReferenceRS-Id.

[0336] D i It can be a set of one or more TPC command values. i ) may be the number of values ​​included in the set. For example, the set of one or more TPC command values ​​may include K in PUSCH transmission opportunities i-i0. PUSCH The symbol before (i-i0) symbols and K of PUSCH transmission opportunity i PUSCH (i) The value of the TPC command received between the symbols before (i) symbols. i0 can be an integer greater than 0. For example, i0 can be the minimum value when condition 1 is satisfied. For example, condition 1 can be K of PUSCH transmission opportunity i-i0. PUSCH The symbol before (i-i0) symbols is K in PUSCH transmission opportunity i PUSCH (i) symbol before the symbol before. i0 can be the K of PUSCH transmission opportunity i-i0. PUSCH (i-i0) symbols before PUSCH transmission opportunity i's K PUSCH The smallest integer that is earlier than (i) symbols. i0 can be greater than 0.

[0337] Alternatively, a certain PUSCH may not be transmitted based on at least the transmission opportunity i and the transmission opportunity i0. PUSCH K from (i-i0) symbols before to PUSCH transmission opportunity i PUSCH For example, a certain PUSCH may not be transmitted during the period from PUSCH transmission opportunity i-i0 to PUSCH transmission opportunity i. For example, a certain PUSCH may not be transmitted during the period from the PUSCH in PUSCH transmission opportunity i-i0 to the PUSCH in PUSCH transmission opportunity i.

[0338] DCI format 1_0 / 1_1 / 1_2 can be used for scheduling of PDSCH. The BWP indication (Bandwidth partindicator) field may be included in one or both of DCI format 1_1 and DCI format 1_2. The number of information bits constituting the BWP indication field may be determined based on the number of DL BWPs. The TPC command (TPC command forscheduled PUCCH) field may be included in one or both of DCI format 1_1 and DCI format 1_2. The second TPC command (Second TPC command for scheduledPUCCH) field may be included in one or both of DCI format 1_1 and DCI format 1_2. For example, in the case of setting the upper layer parameter SecondTPCFieldDCI, the second TPC command (Second TPC command for scheduled PUCCH) field may be included in DCI format 1_1.

[0339] The TCI (Transmission configuration indication) field may be included in one or both of DCI format 1_1 and DCI format 1_2. For example, in the case of setting upper layer parameters, the TCI (Transmission configuration indication) field may be included in one or both of DCI format 1_1 and DCI format 1_2. For example, in the case of setting upper layer parameters tci-PresentInDCI, the TCI (Transmission configuration indication) field may be included in one or both of DCI format 1_1 and DCI format 1_2. One or two TCI states may be indicated by the DCI format. One or two TCI states may also be indicated by the TCI field in the DCI format.

[0340] DCI format 0_0 / 0_1 / 0_2 can be used for scheduling of PUSCH. The BWP indication (Bandwidth partindicator) field may be included in part or all of DCI format 0_1 ​​and DCI format 0_2. The number of information bits constituting the BWP indication field may be determined based on the number of UL BWPs. The TPC command (TPC command forscheduled PUSCH) field may be in one or both of DCI format 0_1 ​​and DCI format 0_2. The second TPC command (Second TPC command for scheduledPUSCH) field may be in one or both of DCI format 0_1 ​​and DCI format 0_2. For example, in the case of setting the upper layer parameter SecondTPCFieldDCI, the second TPC command (Second TPCcommand for scheduled PUSCH) field may be included in DCI format 1_1.

[0341] The SRS resource indicator field may be included in one or both of DCI format 0_1 ​​and DCI format 0_2. The SRS resource set indicator field may be included in one or both of DCI format 0_1 ​​and DCI format 0_2. In the case where the SRS resource set indicator field indicates 0 ("00"), the SRS resource indicator field and the field of precoding information and the number of layers may be associated with the first SRS resource set. In the case where the SRS resource set indicator field indicates 1 ("01"), the SRS resource indicator field and the field of precoding information and the number of layers may be associated with the second SRS resource set. In the case where the SRS resource set indicator field indicates 2 ("10"), the SRS resource indicator field and the field of precoding information and the number of layers may be associated with the first SRS resource set. In the case where the SRS resource set indicator field indicates 2 ("10"), the second SRS resource indicator field and the second "field of precoding information and the number of layers" (second precoding information field) may be associated with the second SRS resource set. When the SRS resource set indication field indicates 3 ("11"), the SRS resource indication field and the field for precoding information and the number of layers can be associated with the first SRS resource set. When the SRS resource set indication field indicates 3 ("11"), the second SRS resource indication field and the second "field for precoding information and the number of layers" can be associated with the second SRS resource set.

[0342] One or both of multiple uplink channels / signals (e.g., PUSCH, PUCCH, SRS) and multiple downlink channels / signals (e.g., PDSCH, PDCCH, CSI-RS) can be beam managed through one TCI state. That is, by applying one TCI state to multiple channels / signals, efficient beam management can be expected. However, in the case of multiple TRPs (Multiple Transmission and Reception Points: Multi-TRP), it is difficult to switch beams per TRP by applying one TCI state to multiple channels / signals. Therefore, as a problem, it is necessary to apply one TCI state to multiple channels / signals and each TRP. As a result, efficient communication and efficient beam management can be expected. As a means of solving the problem, a scheme of the present invention can be used for switching and activation commands of TCI states.

[0343] Fig.14 1 is a diagram showing an example of switching of the TCI state of one scheme of the present embodiment. Terminal device 1 may receive PDSCH 1400. PDSCH 1400 may be sent to transmit transport block 1440. For example, terminal device 1 may receive PDSCH 1400 that transmits transport block 1440. Terminal device 1 may also receive DCI 1410. Terminal device 1 may also receive PDCCH configured (mapped) with DCI 1410. DCI 1410 may not be accompanied by downlink allocation. N symb，1430 It can be the number of OFDM symbols. symb，1430 Can be set by upper layer parameters. symb，1430 It can also be determined by terminal capabilities. Terminal device 1 can receive DCI1411. Terminal device 1 can also receive a PDCCH configured (mapped) with DCI1411. DCI1411 can also be accompanied by an uplink grant. That is, DCI1411 can schedule PUSCH1420. DCI1411 can indicate the transmission of PUSCH1420. Terminal device 1 can send PUSCH1420. DCI1410 can be DCI format 1_1 or DCI format 1_2. DCI1411 can be any one of DCI format 0_0, DCI format 0_1 ​​and DCI format 0_2.

[0344] One or more TCI states can be set by upper layer parameters. For example, one or more UL TCI states (UL-TCIState) can be set for each uplink BWP (BWP-UplinkDedicated) through upper layer parameters. For example, one or more DL / Joint TCI states (DLorJointTCIState) can be set for each PDSCH setting (PDSCH-Config) through upper layer parameters. A TCI state can be associated with a TCI state ID. For example, a UL TCI state can be associated with a UL TCI state ID (TCI-UL-State-Id, UL-TCIState-Id). For example, a DL / Joint TCI state (TCI-state) can be associated with a TCI state ID (TCI-stateId). The TCI state set by upper layer parameters may also be referred to as a "set TCI state".

[0345] PDSCH1400 can transmit transmission block 1440. Transmission block 1440 can be a MAC PDU. A MAC PDU may include an activation command or a MAC CE called an activation command. For example, the activation command may be an activation command D or an activation command E. One or more TCI states and one or more "TCI state pairs" may be mapped to one or more code points. For example, one or more TCI states and one or both of the "TCI state pairs" may be mapped to one or more code points through an activation command. Each TCI state or each TCI state pair may also be mapped to a code point. For example, each TCI state or each TCI state pair may also be mapped to a code point through an activation command. The code point for mapping the TCI state or TCI state pair may be a code point in a TCI field. The code point for mapping the TCI state or TCI state pair may be a code point for a TCI field in DCI format 1_1 or DCI format 1_2. The code point for mapping the TCI state or TCI state pair may be a code point for a TCI field in DCI1410. The TCI state pair may be a joint TCI state. The TCI state activated by the MAC CE may be referred to as an “activated TCI state.” The TCI state of a code point mapped to the TCI field may be referred to as an “activated TCI state.”

[0346] When the CORESET pool index (coresetPoolIndex) is not set in one or more CORESETs (ControlResourceSet), activation command E may be used. When the CORESET pool index (coresetPoolIndex) is set in one or more CORESETs (ControlResourceSet), activation command D or activation command E may be used. For example, in single DCI mode, activation command E may be used. For example, in multiple DCI modes, activation command D may be used. For example, in both single DCI mode and multiple DCI mode, activation command E may be used.

[0347] DCI1410 may be DCI format 1_1 or DCI format 1_2. DCI1410 may include a TCI (Transmission configuration indication) field. The TCI field may indicate one or two TCI states (e.g., UL TCI state, DL TCI state, joint TCI state). For example, the TCI field may indicate one or both of TCI state 1450 and TCI state 1451. TCI state 1450 may also be a UL TCI state, a DL TCI state, or a joint TCI state (TCI state pair). TCI state 1451 may also be a UL TCI state, a DL TCI state, or a joint TCI state (TCI state pair). UL TCI state may also be a TCI state for PUSCH, PUCCH, and SRS. DL TCI state may also be a TCI state for PDSCH, PDCCH, and CSI-RS. Joint TCI state may also be a TCI state for PUSCH, PUCCH, SRS, PDSCH, PDCCH, and CSI-RS. For example, one value of the TCI field may correspond to one code point of the TCI field. The TCI state indicated by the DCI format may also be referred to as an "indicated TCI state".

[0348] One or both of the TCI state 1450 and the TCI state 1451 may be changed from the last OFDM symbol of the PDCCH to which the DCI 1410 is mapped to N symb，1430 TCI state 1450 and TCI state 1451 can be applied to multiple channels / signals. symb，1430 It can be BeamAppTime.

[0349] DCI 1411 may schedule PUSCH 1420 . TCI state 1450 may be a UL TCI state or a joint TCI state . TCI state 1451 may be a UL TCI state or a joint TCI state . That is, one or both of TCI state 1450 and TCI state 1451 may be applied to PUSCH 1420 .

[0350] DCI1411 may provide part or all of the first indication, the second indication, the third indication, and the fourth indication. DCI1411 may provide any one of the first indication, the second indication, the third indication, and the fourth indication. For example, a field in DCI1411 may provide any one of the first indication, the second indication, the third indication, and the fourth indication. A field in DCI1411 may provide any one of the first indication, the second indication, the third indication, and the fourth indication. DCI1411 may provide any one of the first indication, the second indication, the third indication, and the fourth indication for the PUSCH scheduled by DCI1411. DCI1411 may also provide any one of the first indication, the second indication, the third indication, and the fourth indication for at least N OFDM symbols from the end of the PDCCH to which DCI1411 is mapped. symb，1431 The PUSCH sent after symbols gives any one of the first indication, the second indication, the third indication and the fourth indication.

[0351] The first indication may be that TCI state 1450 is applied to PUSCH 1420. The second indication may be that TCI state 1451 is applied to PUSCH 1420. The third indication and the fourth indication may be that both TCI state 1450 and TCI state 1451 are applied to PUSCH 1420. The first indication may be that TCI state 1450 is used. The second indication may be that TCI state 1451 is used. The third indication and the fourth indication may be that both TCI state 1450 and TCI state 1451 are used. The first indication may be that TCI state 1450 is applied to multiple uplink channels / signals including PUSCH 1420. The second indication may be that TCI state 1451 is applied to multiple uplink channels / signals including PUSCH 1420. The third indication and the fourth indication may be that both TCI state 1450 and TCI state 1451 are applied to multiple uplink channels / signals including PUSCH 1420.

[0352] The first indication may also be to apply (correspond to) the first power control state to PUSCH1420. The second indication may also be to apply (correspond to) the second power control state to PUSCH1420. The third indication and the fourth indication may also be to apply (correspond to) the first power control state and the second power control state to PUSCH1420. The first power control state may be l=0. The second power control state may be l=1. The first indication may also be to apply the first transmit power to PUSCH1420. The second indication may also be to apply the second transmit power to PUSCH1420. The third indication and the fourth indication may also be to apply the first transmit power and the second transmit power to PUSCH1420. The first transmit power may correspond to the first power control state. The second transmit power may correspond to the second power control state.

[0353] DCI1411 may include a TRP indication field. The TRP indication field may give any one of a first indication, a second indication, a third indication, and a fourth indication. For example, when the TRP indication field indicates 0 ("00"), the first indication may be performed. For example, when the TRP indication field indicates 1 ("01"), the second indication may be performed. For example, when the TRP indication field indicates 2 ("10"), the third indication may be performed. For example, when the TRP indication field indicates 3 ("11"), the fourth indication may be performed. For example, the TRP indication field being 0 ("00") may be a first indication. For example, the TRP indication field being 1 ("01") may be a second indication. For example, the TRP indication field being 2 ("10") may be a third indication. For example, the TRP indication field being 3 ("11") may be a fourth indication. The TRP indication field may be a field different from the SRS resource set indication field. When setting upper layer parameters, the number of information bits constituting the TRP indication field may be 2. In the case where the upper layer parameters are not set, the number of information bits constituting the TRP indication field may also be 0. The TRP indication field may be included in both the UL scheduling DCI format and the DL scheduling DCI format. The UL scheduling DCI format may be part or all of DCI format 0_0, DCI format 0_1, and DCI format 0_2. The DL scheduling DCI format may be part or all of DCI format 1_0, DCI format 1_1, and DCI format 1_2.

[0354] DCI1411 may include an SRS resource set indication field. The SRS resource set indication field may give any one of a first indication, a second indication, a third indication, and a fourth indication. For example, when the SRS resource set indication field indicates 0 ("00"), the first indication may be performed. For example, when the SRS resource set indication field indicates 1 ("01"), the second indication may be performed. For example, when the SRS resource set indication field indicates 2 ("10"), the third indication may be performed. For example, when the SRS resource set indication field indicates 3 ("11"), the fourth indication may be performed. For example, the SRS resource set indication field being 0 ("00") may be a first indication. For example, the SRS resource set indication field being 1 ("01") may be a second indication. For example, the SRS resource set indication field being 2 ("10") may be a third indication. For example, the SRS resource set indication field being 3 ("11") may be a fourth indication. In the case of setting upper layer parameters, the number of information bits constituting the SRS resource set indication field may be 2. When the upper layer parameters are not set, the number of information bits constituting the SRS resource set indication field may be 0.

[0355] DCI1411 may include one or both of an SRS resource indicator field and a second SRS resource indicator field. For example, in the case where the SRS resource indicator field is included and the second SRS resource indicator field is not included, the first indication may be performed. For example, in the case where the SRS resource indicator field is not included and the second SRS resource indicator field is included, the second indication may be performed. For example, in the case where the SRS resource indicator field is included and the second SRS resource indicator field is included, the third indication or the fourth indication may be performed.

[0356] Terminal device 1 can send PUSCH1420. PUSCH1420 can be sent in two PUSCH transmission opportunities (a first transmission opportunity and a second transmission opportunity). For example, in the case of applying the TDM method (TFM method A), PUSCH1420 can be sent in two PUSCH transmission opportunities (a first transmission opportunity and a second transmission opportunity). The first transmission opportunity and the second transmission opportunity may not be repeated in the time domain and may be in the same time slot. PUSCH1420 may correspond to the same transmission block in the first transmission opportunity and the second transmission opportunity. In the case of giving the first indication, the first transmission opportunity may be associated with TCI1450, and the second transmission opportunity may be associated with TCI1450. In the case of giving the second indication, the first transmission opportunity may be associated with TCI1451, and the second transmission opportunity may be associated with TCI1451. In the case of giving the third indication, the first transmission opportunity may be associated with TCI1450, and the second transmission opportunity may be associated with TCI1451. When the fourth indication is given, the first transmission opportunity may be associated with TCI1451 and the second transmission opportunity may be associated with TCI1450.

[0357] PUSCH1420 may be transmitted in two PUSCH transmission opportunities (a first transmission opportunity and a second transmission opportunity). For example, in the case of applying the FDM method (FDM method A, FDM method B), PUSCH1420 may be transmitted in two PUSCH transmission opportunities (a first transmission opportunity and a second transmission opportunity). The first transmission opportunity and the second transmission opportunity may also not be repeated in the frequency domain. A transmission block corresponding to PUSCH1420 may be transmitted in the first transmission opportunity and the second transmission opportunity. PUSCH1420 may correspond to the same transmission block in the first transmission opportunity and the second transmission opportunity. The RV (Redundancy version) in the first transmission opportunity may be different from the RV in the second transmission opportunity. In the case of giving the first indication, the first transmission opportunity may be associated with TCI1450, and the second transmission opportunity may be associated with TCI1450. In the case of giving the second indication, the first transmission opportunity may be associated with TCI1451, and the second transmission opportunity may be associated with TCI1451. In the case of giving the third indication, the first transmission opportunity may be associated with TCI1450, and the second transmission opportunity may be associated with TCI1451. When the fourth indication is given, the first transmission opportunity may be associated with TCI1451 and the second transmission opportunity may be associated with TCI1450.

[0358] The terminal device 1 may transmit repetitions of PUSCH 1420. The terminal device 1 may transmit PUSCH 1420 in multiple time slots (repeated transmission). For example, PUSCH 1420 that transmits a transport block may be transmitted in multiple time slots. The terminal device 1 may repeat a transport block (a transport block corresponding to PUSCH 1420) in consecutive K time slots. K may be the number of repetitions.

[0359] In the case where the first indication is given, TCI state 1450 can be associated with K consecutive time slots. In the case where the second indication is given, TCI state 1451 can be associated with K consecutive time slots. In the case where the third indication is given, TCI state 1450 and TCI state 1451 can be associated with K consecutive time slots. For example, in the case of K=2, TCI state 1450 can be applied to the first time slot and TCI state 1451 can be applied to the second time slot. In the case of K>2 and cyclic mapping is valid, TCI state 1450 and TCI state 1451 can be applied to the first and second time slots of K consecutive time slots, respectively, and the same TCI state mapping pattern can be followed by the remaining time slots of the K consecutive time slots. In the case where K>2 and sequential Mapping is valid, TCI state 1450 can be applied to the first and second time slots of K consecutive time slots, and TCI state 1451 can be applied to the third and fourth time slots of K consecutive time slots, and the same TCI state mapping pattern can be followed by the remaining time slots of the K consecutive time slots. In the case where the fourth indication is given, TCI state 1450 and TCI state 1451 can be associated with K consecutive time slots. For example, in the case where K=2, TCI state 1451 can be applied to the first time slot, and TCI state 1450 can be applied to the second time slot. In the case where K>2 and cyclic Mapping is valid, TCI state 1451 and TCI state 1450 can be applied to the first and second time slots of K consecutive time slots, respectively, and the same TCI state mapping pattern can be followed by the remaining time slots of the K consecutive time slots. When K>2 and cyclic mapping is valid, TCI state 1451 and TCI state 1450 can be applied to the first and second time slots of K consecutive time slots, respectively, and the same TCI state mapping pattern can be applied to the remaining time slots of the K consecutive time slots.

[0360] The transmit power of PUSCH 1420 may be determined based on at least one or two power control states. For example, the transmit power of PUSCH 1420 may correspond to one or both of the first power control state and the second power control state. For example, in the case where the first indication is given, the transmit power of PUSCH 1420 may correspond to the first power control state. In the case where the second indication is given, the transmit power of PUSCH 1420 may correspond to the second power control state. In the case where the third indication or the fourth indication is given, the transmit power of PUSCH 1420 may correspond to both the first power control state and the second power control state.

[0361] PUSCH 1420 may be associated with one or both of the first TA (Timing advance) and the second TA. For example, when the first indication is given, PUSCH 1420 may be associated with the first TA. When the second indication is given, PUSCH 1420 may be associated with the second TA. When the third indication or the fourth indication is given, PUSCH 1420 may be associated with both the first TA and the second TA.

[0362] The receiving unit in the terminal device 1 can receive a first PDCCH for configuring DCI1410. The receiving unit in the terminal device 1 can receive a second PDCCH for configuring DCI1411 for scheduling PUSCH1420. The transmitting unit in the terminal device 1 can transmit PUSCH1420. DCI1410 can indicate both TCI state 1450 and TCI state 1451. Both TCI state 1450 and TCI state 1451 can be TCI states for uplink channels / signals including at least PUSCH1420. The uplink channel / signal can be part or all of PUSCH, PUCCH and SRS. DCI1411 can give any one of the first indication, the second indication, the third indication and the fourth indication. In the case where DCI1411 gives the first indication, PUSCH1420 can be associated with TCI state 1450. In the case where DCI1411 gives the second indication, PUSCH1420 can be associated with TCI state 1451. When DCI 1411 gives the third indication or the fourth indication, PUSCH 1420 may be associated with both TCI state 1450 and TCI state 1451 .

[0363] The transmit power control unit in the terminal device may determine one or both of the first transmit power and the second transmit power. The first transmit power may be associated with a first power control state (l=0). The second transmit power may be associated with a second power control state (l=1). In the case where DCI1411 gives a first indication, PUSCH1420 may correspond to the first transmit power. In the case where DCI1411 gives a second indication, PUSCH1420 may correspond to the second transmit power. In the case where DCI1411 gives a third indication or a fourth indication, PUSCH1420 may correspond to both the first transmit power and the second transmit power.

[0364] The first indication given by DCI1411 may be the SRS resource set indication field in DCI1411 indicating "00". The second indication given by DCI1411 may be the SRS resource set indication field in DCI1411 indicating "01". The third indication given by DCI1411 may be the SRS resource set indication field in DCI1411 indicating "10". The fourth indication given by DCI1411 may be the SRS resource set indication field in DCI1411 indicating "11".

[0365] The first indication given by DCI1411 may be that the TRP indication field in DCI1411 indicates "00". The second indication given by DCI1411 may be that the TRP indication field in DCI1411 indicates "01". The third indication given by DCI1411 may be that the TRP indication field in DCI1411 indicates "10". The fourth indication given by DCI1411 may be that the TRP indication field in DCI1411 indicates "11".

[0366] Hereinafter, various device aspects of one aspect of the present embodiment will be described.

[0367] (1) In order to achieve the above-mentioned purpose, the scheme of the present invention adopts the following means. That is, the first scheme of the present invention is a terminal device, the terminal device comprising: a receiving unit, receiving a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and a sending unit, sending the PUSCH, the first DCI indicates both a first TCI state and a second TCI state, the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, the second DCI gives any one of a first indication, a second indication, and a third indication, when the second DCI gives the first indication, the PUSCH is associated with the first TCI state, when the second DCI gives the second indication, the PUSCH is associated with the second TCI state, and when the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state. In addition, the terminal device includes a transmission power control unit, the transmission power control unit determines one or both of a first transmission power and a second transmission power, the first transmission power is associated with a first power control state, the second transmission power is associated with a second power control state, the first power control state is different from the second power control state, when the second DCI gives the first indication, the PUSCH corresponds to the first transmission power, when the second DCI gives the second indication, the PUSCH corresponds to the second transmission power, when the second DCI gives the third indication, the PUSCH corresponds to both the first transmission power and the second transmission power. In addition, it may be that the first indication given by the second DCI is the SRS resource set indication field indication "00" in the second DCI, the second indication given by the second DCI is the SRS resource set indication field indication "01", and the third indication given by the second DCI is the SRS resource set indication field indication "10". In addition, it may also be that the first indication given by the second DCI is that the TRP indication field in the second DCI indicates "00", the second indication given by the second DCI is that the TRP indication field indicates "01", and the third indication given by the second DCI is that the TRP indication field indicates "10".

[0368] (2) A second scheme of the present invention is a base station device, comprising: a sending unit, sending a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and a receiving unit, receiving the PUSCH, wherein the first DCI indicates both a first TCI state and a second TCI state, both the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, and the second DCI gives any one of a first indication, a second indication, and a third indication, and when the second DCI gives the first indication, the PUSCH is associated with the first TCI state, and when the second DCI gives the second indication, the PUSCH is associated with the second TCI state, and when the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state. In addition, the terminal device includes a transmission power control unit, the transmission power control unit determines one or both of a first transmission power and a second transmission power, the first transmission power is associated with a first power control state, the second transmission power is associated with a second power control state, the first power control state is different from the second power control state, when the second DCI gives the first indication, the PUSCH corresponds to the first transmission power, when the second DCI gives the second indication, the PUSCH corresponds to the second transmission power, when the second DCI gives the third indication, the PUSCH corresponds to both the first transmission power and the second transmission power. In addition, it may be that the first indication given by the second DCI is the SRS resource set indication field indication "00" in the second DCI, the second indication given by the second DCI is the SRS resource set indication field indication "01", and the third indication given by the second DCI is the SRS resource set indication field indication "10". In addition, it may also be that the first indication given by the second DCI is that the TRP indication field in the second DCI indicates "00", the second indication given by the second DCI is that the TRP indication field indicates "01", and the third indication given by the second DCI is that the TRP indication field indicates "10".

[0369] The program operating in the base station device 3 and the terminal device 1 according to one embodiment of the present invention may be a program (a program that causes a computer to function) that controls a CPU (Central Processing Unit) and the like to realize the functions of the above-mentioned embodiment according to one embodiment of the present invention. Then, the information processed by these devices is temporarily stored in a RAM (Random Access Memory) when processing, and then stored in various ROMs such as a Flash ROM (Read Only Memory) and a HDD (Hard Disk Drive), and is read, modified, and written by the CPU as needed.

[0370] It should be noted that a part of the terminal device 1 and the base station device 3 of the above embodiment may also be implemented by a computer. In this case, the program for implementing the control function may be recorded in a computer readable recording medium, and the program recorded in the recording medium may be read into a computer system and executed.

[0371] It should be noted that the "computer system" mentioned here refers to a computer system built into the terminal device 1 or the base station device 3, and includes hardware such as an OS and external devices. In addition, "computer-readable recording medium" refers to removable media such as a floppy disk, a magneto-optical disk, a ROM, a CD-ROM, and a storage device such as a hard disk built into the computer system.

[0372] Furthermore, "computer-readable recording medium" may also include: a recording medium that stores a program dynamically for a short period of time, such as a communication line when the program is transmitted via a network such as the Internet or a communication line such as a telephone line; and a recording medium that stores a program for a fixed period of time, such as a volatile memory inside a computer system that serves as a server or client in this case. In addition, the above program may be a program for realizing a part of the above functions, or a program that can realize the above functions by combining with a program already recorded in a computer system.

[0373] In addition, the base station device 3 in the above-mentioned embodiment can also be implemented as an aggregate (device group) composed of multiple devices. Each device constituting the device group can have a part or all of the functions or functional blocks of the base station device 3 involved in the above-mentioned embodiment. As a device group, it is sufficient to have all the functions or functional blocks of the base station device 3. In addition, the terminal device 1 involved in the above-mentioned embodiment can also communicate with the base station device as an aggregate.

[0374] In addition, the base station device 3 of the above-mentioned embodiment may be EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or NG-RAN (NextGenRAN, NR RAN). In addition, the base station device 3 of the above-mentioned embodiment may also have part or all of the functions of the upper node for eNodeB and / or gNB.

[0375] In addition, part or all of the terminal device 1 and the base station device 3 of the above-mentioned embodiment may be implemented as an LSI, which is typically an integrated circuit, or as a chipset. Each functional block of the terminal device 1 and the base station device 3 may be individually chip-based, or part or all of the functional blocks may be integrated and chip-based. In addition, the method of integrated circuitization is not limited to LSI, and may be implemented by a dedicated circuit or a general-purpose processor. In addition, when a technology for integrated circuitization that replaces LSI emerges with the advancement of semiconductor technology, an integrated circuit based on the technology may also be used.

[0376] In addition, in the above-mentioned embodiment, a terminal device is described as an example of a communication device, but the present invention is not limited to this, and can also be applied to fixed or non-movable electronic devices installed indoors and outdoors, such as AV equipment, kitchen equipment, cleaning / washing equipment, air-conditioning equipment, office equipment, vending machines and other life equipment and other terminal devices or communication devices.

[0377] The embodiments of the present invention are described in detail with reference to the accompanying drawings, but the specific configuration is not limited to the present embodiment, and also includes design changes within the scope of the gist of the present invention. In addition, a scheme of the present invention can be variously changed within the scope shown in the technical scheme, and the embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. In addition, it also includes a configuration obtained by replacing the elements that have the same effect as the elements recorded in the above-mentioned embodiments with each other. Industrial Applicability

[0378] One aspect of the present invention can be used for example in a communication system, a communication device (such as a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (such as a communication chip), a program, or the like. Description of Reference Numerals 1(1A, 1B, 1C): Terminal device 3: Base station device 10, 30: Wireless transceiver 10a, 30a: Wireless transmission unit 10b, 30b: Wireless receiving unit 11, 31: Antenna 12, 32: RF department 13, 33: Baseband 14, 34: Upper processing unit 15, 35: Media access control layer processing unit 16, 36: Radio resource control layer processing unit 91, 92, 93, 94: Search area set 300: Component carrier 301: Main cell 302, 303: Auxiliary cells 700: A collection of resource elements for PSS 710, 711, 712, 713: resource element set for PBCH and DMRS for PBCH 720: A collection of resource elements for SSS 3000: points 3001, 3002: Resource grid 3003, 3004: BWP 3011, 3012, 3013, 3014: Offset 3100, 3200: Public resource block set 1400: PDSCH 1410, 1411: DCI 1420: PUSCH 1430, 1431: Number of OFDM symbols 1440: Transmission block 1450, 1451: TCI status

Claims

1. A terminal device, comprising: a receiving unit, receiving a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and a transmitting unit, transmitting the PUSCH, The first DCI indicates both a first TCI state and a second TCI state, Both the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, The second DCI gives any one of the first indication, the second indication and the third indication, In the case where the second DCI gives the first indication, the PUSCH is associated with the first TCI state, In the case where the second DCI gives the second indication, the PUSCH is associated with the second TCI state, When the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state.

2. The terminal device according to claim 1, wherein: The terminal device includes a transmission power control unit, the transmission power control unit determining one or both of a first transmission power and a second transmission power. The first transmit power is associated with a first power control state, The second transmit power is associated with a second power control state, The first power control state is different from the second power control state, In a case where the second DCI gives the first indication, the PUSCH corresponds to the first transmit power, In the case where the second DCI gives the second indication, the PUSCH corresponds to the second transmit power, When the second DCI gives the third indication, the PUSCH corresponds to both the first transmission power and the second transmission power.

3. The terminal device according to claim 1 or 2, wherein: The first indication given by the second DCI is that the SRS resource set indication field in the second DCI indicates "00", The second indication given by the second DCI is that the SRS resource set indication field indicates "01", The third indication given by the second DCI is that the SRS resource set indication field indicates "10".

4. The terminal device according to claim 1 or 2, wherein: The first indication given by the second DCI is that the TRP indication field in the second DCI indicates "00", The second indication given by the second DCI is that the TRP indication field indicates "01", The third indication given by the second DCI is that the TRP indication field indicates "10".

5. A base station device, comprising: a transmitting unit, configured to transmit a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and A receiving unit receives the PUSCH, The first DCI indicates both a first TCI state and a second TCI state, Both the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, The second DCI gives any one of the first indication, the second indication and the third indication, In the case where the second DCI gives the first indication, the PUSCH is associated with the first TCI state, In the case where the second DCI gives the second indication, the PUSCH is associated with the second TCI state, When the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state.

6. The base station device according to claim 5, wherein: determining one or both of a first transmission power and a second transmission power, The first transmit power is associated with a first power control state, The second transmit power is associated with a second power control state, The first power control state is different from the second power control state, In a case where the second DCI gives the first indication, the PUSCH corresponds to the first transmit power, In the case where the second DCI gives the second indication, the PUSCH corresponds to the second transmit power, When the second DCI gives the third indication, the PUSCH corresponds to both the first transmission power and the second transmission power.

7. The base station device according to claim 5 or 6, wherein: The first indication given by the second DCI is that the SRS resource set indication field in the second DCI indicates "00", The second indication given by the second DCI is that the SRS resource set indication field indicates "01", The third indication given by the second DCI is that the SRS resource set indication field indicates "10".

8. The base station device according to claim 5 or 6, wherein: The first indication given by the second DCI is that the TRP indication field in the second DCI indicates "00", The second indication given by the second DCI is that the TRP indication field indicates "01", The third indication given by the second DCI is that the TRP indication field indicates "10".

9. A communication method, the communication method being used in a terminal device, the communication method comprising: The step of receiving a first PDCCH configured with a first DCI and a second PDCCH configured with a second DCI scheduling a PUSCH; and The step of sending the PUSCH, The first DCI indicates both a first TCI state and a second TCI state, Both the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, The second DCI gives any one of the first indication, the second indication and the third indication, In the case where the second DCI gives the first indication, the PUSCH is associated with the first TCI state, In the case where the second DCI gives the second indication, the PUSCH is associated with the second TCI state, When the second DCI gives the third indication, the PUSCH is associated with both the first TCI state and the second TCI state.

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