Terminal device, base station device, and communication method

Abstract

To provide a terminal device, a base station device, and a communication method for efficiently performing communication.SOLUTION: In a wireless communication system, a terminal device includes a receiving unit that receives a first PDCCH in which a first DCI 1410 is arranged and a second PDCCH in which a second DCI 1411 scheduling a PUSCH 1420 is arranged, and a transmitting unit that transmits the PUSCH. The first DCI indicates both of a first TCI state and a second TCI state. Both of the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal, and the second DCI gives one of a first instruction to a third instruction. When the second DCI gives the first instruction, the PUSCH is associated with the first TCI state. When the second DCI gives the second instruction, the PUSCH is associated with the second TCI state. When the second DCI gives the third instruction, the PUSCH is associated with both first TCI state and second TCI state.SELECTED DRAWING: Figure 14

Description

[Technical Field]

[0001] The present invention relates to a terminal device, a base station device, and a communication method. [Background technology]

[0002] The radio access method and radio network for cellular mobile communications (hereinafter referred to as "Long Term Evolution (LTE)" or "EUTRA: Evolved Universal Terrestrial Radio Access") is being developed by the Third Generation Partnership Project (3GPP). rd This is being studied in the LTE Generation Partnership Project. In LTE, base station devices are also called eNodeBs (evolved NodeBs) and terminal devices are also called UEs (User Equipment). LTE is a cellular communication system in which areas covered by base station devices are arranged in multiple cell-like configurations. A single base station device may manage multiple serving cells.

[0003] 3GPP is currently studying the next-generation standard (NR: New Radio) to propose it for IMT (International Mobile Telecommunication)-2020, the standard for next-generation mobile communication systems formulated by the International Telecommunication Union (ITU) (Non-Patent Document 1). NR is expected to meet the requirements of three scenarios: eMBB (enhanced Mobile Broadband), mMTC (massive Machine Type Communication), and URLLC (Ultra Reliable and Low Latency Communication) within a single technology framework.

[0004] 3GPP is currently studying the expansion of services supported by NR (non- Patent document 2). [Prior art documents] [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 to be solved by the invention]

[0006] The present invention provides a terminal device that performs efficient communication, a communication method used in the terminal device, a base station device that performs efficient communication, and a communication method used in the base station device. [Means for solving the problem]

[0007] (1) A first aspect of the present invention is a terminal device, comprising: a receiving unit for receiving a first PDCCH in which a first DCI is arranged and a second PDCCH in which a second DCI for scheduling a PUSCH is arranged; and a transmitting unit that transmits the PUSCH, wherein the first DCI indicates both a first TCI state and a second TCI state, both of which are TCI states for at least an uplink channel / signal, and the second DCI provides one of a first indication, a second indication, and a third indication, and when the second DCI provides the first indication, the PUSCH is associated with the first TCI state, when the second DCI provides the second indication, the PUSCH is associated with the second TCI state, and when the second DCI provides the third indication, the PUSCH is associated with both the first TCI state and the second TCI state.

[0008] (2) A second aspect of the present invention is a base station device, a transmitter for transmitting a first PDCCH, a second PDCCH in which a second DCI for scheduling a PUSCH is arranged, and a receiver for receiving the PUSCH, wherein the first DCI is in a first TCI state and a second TCI state, and both the first TCI state and the second TCI state are the TCI status for at least one uplink channel / signal, and the second DCI is the first DCI. a second DCI giving one of a first instruction, a second instruction, and a third instruction, and the second DCI giving one of a first instruction, a second instruction, and a third instruction, and If the PUSCH is associated with the first TCI state, the second DCI is associated with the second TCI state. If the indication is given, the PUSCH is associated with the second TCI state and the second DCI is associated with the third TCI state. When the instruction is given, the PUSCH is associated with both the first TCI state and the second TCI state. do.

[0009] (3) A third aspect of the present invention is a communication method used in a terminal device, comprising: receiving a first PDCCH in which a first DCI is arranged and a second PDCCH in which a second DCI for scheduling a PUSCH is arranged; and transmitting the PUSCH, wherein the first DCI indicates both a first TCI state and a second TCI state, and both the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal; The second DCI gives one of a first instruction, a second instruction, and a third instruction, and the second DCI If the DCI indicates the first indication, the PUSCH is associated with the first TCI state, and If a second DCI provides the second indication, the PUSCH is associated with the second TCI state, and If a second DCI provides the third indication, the PUSCH is associated with both the first TCI state and the second TCI state.

[0010] (4) Furthermore, a fourth aspect of the present invention is a communication method used in a base station device, comprising: a step of transmitting a first PDCCH in which a first DCI is arranged and a second PDCCH in which a second DCI for scheduling a PUSCH is arranged; and a step of receiving the PUSCH, wherein the first DCI indicates both a first TCI state and a second TCI state, and 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 one of the first instruction, the second instruction, and the third instruction, If the second DCI indicates the first indication, the PUSCH is associated with the first TCI state, and If a second DCI provides the second indication, the PUSCH is associated with the second TCI state and If the second DCI provides the third indication, the PUSCH is in the first TCI state and the second TCI state. The TCI condition is related to both. [Effects of the Invention]

[0011] According to the present invention, the terminal device can perform communication efficiently, and the base station device can perform communication efficiently. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a conceptual diagram of a wireless communication system according to an aspect of the present embodiment. [Figure 2] 10 is an example showing the relationship between a subcarrier spacing setting μ, the number of OFDM symbols per slot Nslot symb, and a cyclic prefix (CP) setting according to one aspect of the present embodiment. [Figure 3] FIG. 10 is a diagram illustrating an example of a method for configuring a resource grid according to an aspect of the present embodiment. [Figure 4] FIG. 3 is a diagram illustrating an example of the configuration of a resource grid 3001 according to an aspect of the present embodiment. [Figure 5] 2 is a schematic block diagram illustrating an example of the configuration of a base station device 3 according to one aspect of the present embodiment. FIG. [Figure 6] 1 is a schematic block diagram showing an example of the configuration of a terminal device 1 according to an aspect of the present embodiment. [Figure 7] FIG. 2 is a diagram illustrating an example of the configuration of an SS / PBCH block according to one aspect of this embodiment. [Figure 8] FIG. 10 is a diagram illustrating an example of a monitoring opportunity for a set of search areas according to one aspect of the present embodiment. [Figure 9] FIG. 10 is a diagram showing an example of an activation command A according to one aspect of the present embodiment. [Figure 10] FIG. 10 is a diagram showing an example of an activation command B according to one aspect of the present embodiment. [Figure 11] FIG. 10 is a diagram illustrating an example of an activation command C according to one aspect of the present embodiment. [Figure 12] FIG. 10 is a diagram illustrating an example of an activation command D according to one aspect of the present embodiment. [Figure 13] FIG. 10 is a diagram illustrating an example of an activation command E according to one aspect of the present embodiment. [Figure 14] FIG. 10 is a diagram illustrating an example of switching of the TCI state according to one aspect of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

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

[0014] floor(C) may be a floor function for real number C. For example, floor(C) may be a function that outputs the largest integer that does not exceed real number C. ceil(D) may be a ceiling function for real number D. For example, ceil(D) may be a function that outputs the smallest integer that does not fall below real number D. mod(E,F) is a function that outputs the remainder when E is divided by F. mod(E,F) is a function that outputs the value corresponding to the remainder when E is divided by F. exp(G)=e^G, where e is Napier's constant. H^I indicates H to the Ith power. max(J,K) is a function that outputs the maximum value among J and K. Here, if 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 among L and M. Here, if 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 according to an aspect of the present embodiment, at least Orthogonal Frequency Division Multiplexing (OFDM) is used. An OFDM symbol is a unit of time domain of OFDM. An OFDM symbol includes at least one or more subcarriers. The OFDM symbol is converted into a time-continuous signal in baseband signal generation. In the downlink, at least CP-OFDM (Cyclic Prefix - Orthogonal Frequency Division Multiplexing) is used. In the uplink, either CP-OFDM or DFT-s-OFDM (Discrete Fourier Transform - spread - Orthogonal Frequency Division Multiplexing) is used. DFT-s-OFDM may be obtained by applying transform precoding to CP-OFDM.

[0016] The OFDM symbol may be a name including a CP added to the OFDM symbol. In other words, a certain OFDM symbol may be configured to include the certain OFDM symbol and the CP added to the certain OFDM symbol.

[0017] Fig. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment. In Fig. 1, the wireless communication system 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 will also be 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, transmission / reception devices, or transmission / reception points). When the base station device 3 is configured with multiple transmission devices, the multiple transmission devices may be located at different positions.

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

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

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

[0022] The resource grid is size,μ grid,x N RB sc where The resource grid is divided into common resource blocks N start,μ grid,x It starts from Resource Block N start,μ grid,x is also called the reference point of the resource grid.

[0023] The resource grid is subframe,μ symb It contains OFDM symbols.

[0024] The subscript x attached to the resource grid related parameters specifies the sending direction. For example, the subscript x indicates either the downlink or the uplink. It may also be used for

[0025] N size,μ grid,x is indicated by a parameter provided by the RRC layer (e.g., Data CarrierBandwidth) offset setting. start,μ grid,x is the bandwidth configuration indicated by parameters provided by the RRC layer (e.g., parameter OffsetToCarrier). The offset setting and band setting are the configuration of the SCS-specific carrier. This is the setting used for

[0026] Subcarrier spacing (SCS) for a given subcarrier spacing setting μ )Δf is Δf=2 μ 15 kHz. Here, the subcarrier spacing setting μ is 0 , 1, 2, 3, or 4 may be indicated.

[0027] FIG. 2 shows a subcarrier spacing setting μ and the number of OFDM symbols per slot N according to one aspect of this embodiment. slot symb 2A, for example, when the subcarrier spacing setting μ is 2 and the CP setting is normal cyclic prefix (CP), N slot symb =14, N frame,μ slot =40, N subframe, μ slotIn addition, in FIG. 2B, for example, if the subcarrier spacing setting μ is 2, If the CP setting is an extended cyclic prefix (CP), slot symb =12, N frame ,μ slot =40, N subframe,μ slot =4.

[0028] Time unit T c may be used to express a length in the time domain. c is T c =1 / (Δf max N f ) Δf max = 480 kHz. f =409 6. The constant κ is κ=Δf max N f / (Δf ref N f,ref )=64. Δf ref is 1 5kHz. N f,ref is 2048.

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

[0030] An OFDM symbol is a time domain unit of a communication system. For example, an OFDM symbol may be a time domain unit of CP-OFDM. Also, an OFDM symbol may be a time domain unit of DFT-s-OFDM.

[0031] A slot may consist of multiple OFDM symbols, e.g., N consecutive OFDM symbols. slot symb For example, in the normal CP setting, N OFDM symbols may constitute one slot. slot symb = 14. In addition, in the setting of the extended CP, N slot symb =12.

[0032] For a given subcarrier spacing setting μ, the number and index of slots contained in the subframe may be given. For example, slot index n μ s ranges from 0 to N in the subframe subframe,μ slot The sub-characters may be given in ascending order as integer values ​​in the range -1. For setting the rear interval μ, the number and index of slots included in the radio frame may be given. Also, the slot index n μ s,f ranges from 0 to N in the radio frame. frame,μ slot Integer values ​​in the range -1 to +1 may be given in ascending order.

[0033] Fig. 3 is a diagram showing an example of a resource grid configuration method according to one aspect of this embodiment. The horizontal axis in Fig. 3 represents the frequency domain. Fig. 3 shows an example of a resource grid configuration with subcarrier spacing μ1 in a component carrier 300, and an example of a resource grid configuration with subcarrier spacing μ2 in the component carrier. In this way, one or more subcarrier spacings may be set for a given component carrier. Fig. 3 assumes that μ1 = μ2-1, but various aspects of this embodiment are not limited to the condition μ1 = μ2-1.

[0034] The component carrier 300 is a 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 subcarrier spacing setting μ1.

[0036] Of the common resource block set 3100, the common resource block that includes the point 3000 (the black block in the common resource block set 3100 in FIG. 3) is also called the reference point of the common resource block set 3100. The reference point of the common resource block set 3100 may be the common resource block with index 0 in the common resource block set 3100.

[0037] The offset 3011 is the offset from the reference point of the common resource block set 3100 to the reference point of the resource grid 3001. The offset 3011 is indicated by the number of common resource blocks for the subcarrier spacing setting μ1. The resource grid 3001 is N size,μ grid1,xIt contains common resource blocks.

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

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

[0040] In the common resource block set 3200, the common resource block including the point 3000 (the black 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 be the common resource block with index 0 in the common resource block set 3200.

[0041] The offset 3012 is the offset from the reference point of the common resource block set 3200 to the reference point of the resource grid 3002. The offset 3012 is indicated by the number of common resource blocks relative to the subcarrier spacing μ. The resource grid 3002 is N size,μ grid2,x It contains common resource blocks.

[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 ) is the offset to

[0043] 4 is a diagram showing an example of the configuration of a resource grid 3001 according to one aspect of this embodiment. In the resource grid of FIG. 4, the horizontal axis represents OFDM symbol index l sym and the vertical axis is the subcarrier index k scThe resource grid 3001 is size,μ grid1,x N RB sc contains N subcarriers, subframe,μ symb Contains OFDM symbols. Within the grid, subcarrier index k sc and OFDM symbol index l sym The resource specified by is also called a resource element (RE).

[0044] Resource Block (RB) is N RB sc Contains consecutive subcarriers Resource blocks are divided into common resource blocks, physical resource blocks (PRBs), and virtual resource blocks (VRBs). Here, N RB sc =12.

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

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

[0047] The physical resource blocks for a given subcarrier spacing setting μ are given as follows in a given BWP: The indexes are assigned in ascending order starting from 0 in the frequency domain. The index n of the physical resource block for a given subcarrier spacing setting μ is μ PRB is n μ CRB =n μ PRB +N start,μ BWP,i where N start,μ BWP,i denotes the reference point of the BWP with index i.

[0048] A BWP is defined as a subset of common resource blocks contained in a resource grid. The BWP is located at the reference point N of the BWP. start,μ BWP,i Starting with N size,μ BWP,i Common litho The BWP configured for a downlink carrier is also called a downlink BWP. The BWP configured for an uplink component carrier is also called an uplink BWP.

[0049] An antenna port may be defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed. For example, a channel may correspond to a physical channel, a symbol may correspond to an OFDM symbol, a symbol may correspond to a resource block unit, or a symbol may correspond to a resource element.

[0050] When the large-scale properties of a channel through which symbols are transmitted at one antenna port can be estimated from the channel through which symbols are transmitted at another antenna port, the two antenna ports are said to be Quasi Co-Located (QCL). Here, the large-scale properties may include at least long-range properties of the channel. The large-scale properties may include at least some or all of delay spread, Doppler spread, Doppler shift, average gain, average delay, and beam parameters (spatial Rx parameters). The first and second antenna ports being QCL with respect to beam parameters may mean that a receive beam assumed by the receiver for the first antenna port is the same as (or corresponds to) a receive beam assumed by the receiver for the second antenna port. The first antenna port and the second antenna port being QCLs in terms of beam parameters may mean that a transmission beam assumed by the receiving side for the first antenna port and a transmission beam assumed by the receiving side for the second antenna port are the same (or correspond to each other). The terminal device 1 may assume that the two antenna ports are QCLs if the large-scale characteristics of a channel through which symbols are transmitted at one antenna port can be estimated from the channel through which symbols are transmitted at another antenna port. The two antenna ports being QCLs may mean that the two antenna ports are assumed to be QCLs.

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

[0052] The two antenna ports may be type A QCLs, which may indicate that a first large-scale characteristic of a channel through which symbols are transmitted at one antenna port can be estimated from a channel through which symbols are transmitted at another antenna port. The two antenna ports may be type B QCLs, which may indicate that a second large-scale characteristic of a channel through which symbols are transmitted at one antenna port can be estimated from a channel through which symbols are transmitted at another antenna port. The two antenna ports may be type C QCLs, which may indicate that a third large-scale characteristic of a channel through which symbols are transmitted at one antenna port can be estimated from a channel through which symbols are transmitted at another antenna port. The two antenna ports may be type D QCLs, which may indicate that a fourth large-scale characteristic of a channel through which symbols are transmitted at one antenna port can be estimated from a channel through which symbols are transmitted at another antenna port. The first large-scale characteristic may include all of Doppler shift, Doppler spread, mean 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 the Doppler shift and the average delay. The fourth large-scale characteristic may include spatial reception parameters (spatial direction information, beam information). An antenna port for a DMRS may be a DMRS port. An antenna port for a PTRS may be a PTRS port. An antenna port associated with a PTRS may be a PTRS port. An antenna port for an SRS may be an SRS port. An antenna port for a DMRS may be a DMRS port. An antenna port associated with a DMRS may be a DMRS port.

[0053] Carrier aggregation is the process of providing multiple aggregated serving The carrier aggregation may be performed by using a cell. The carrier aggregation may be performed by using a plurality of aggregated component carriers. The carrier aggregation may be performed by using a plurality of aggregated downlink component carriers. The carrier aggregation may be performed by using a plurality of aggregated uplink component carriers.

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

[0055] The wireless transceiver 30 includes at least a wireless transmitter 30a and part or all of a wireless receiver 30b. Here, the baseband unit included in the wireless transmitter 30a and the baseband unit included in the wireless receiver 30b may have the same or different device configurations. Furthermore, the RF unit included in the wireless transmitter 30a and the RF unit included in the wireless receiver 30b may have the same or different device configurations. Furthermore, the antenna unit included in the wireless transmitter 30a and the antenna unit included in the wireless receiver 30b may have the same or different device configurations.

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

[0057] For example, the radio receiving unit 30b may receive a PRACH. For example, the radio receiving unit 30b may receive and demodulate a PUCCH. The radio receiving unit 30b may receive and demodulate a PUSCH. For example, the radio receiving unit 30b may receive a PUCCH DMRS. For example, the radio receiving unit 30b may receive a PUSCH DMRS. For example, the radio receiving unit 30b may receive an UL PTRS. For example, the radio receiving unit 30b may receive an SRS.

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

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

[0060] The radio resource control layer processing unit 36 ​​included in the upper layer processing unit 34 performs processing of the RRC layer. The RRC layer processing unit 36 ​​processes various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 36 ​​manages the RRC message received from the terminal device 1. Set the parameters based on the message.

[0061] The radio transceiver 30 (or the radio transmitter 30a) performs processing such as modulation and encoding. The radio transceiver 30 (or the radio transmitter 30a) modulates, encodes, and transmits downlink data. The radio transmission / reception unit 30 (or the radio transmission unit 30a) generates a physical signal by generating a baseband signal (converting it into a time-continuous signal) and transmits it to the terminal device 1. Alternatively, the signal may be arranged on a component carrier and transmitted to the terminal device 1.

[0062] The radio transmitting / receiving unit 30 (or the radio receiving unit 30b) performs processes such as demodulation and decoding. The wireless transceiver 30 (or the wireless receiver 30b) separates, demodulates, and The radio transmitting / receiving unit 30 (or the radio receiving unit 30b) may perform a channel access procedure prior to transmitting a physical signal.

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

[0064] The baseband unit 33 receives the analog signal from the RF unit 32 and converts it into The baseband unit 33 removes a portion corresponding to a CP (Cyclic Prefix) from the converted digital signal, and performs the following on the signal from which the CP has been removed: A fast Fourier transform (FFT) is performed to extract the frequency domain signal.

[0065] The baseband unit 33 performs an Inverse Fast Fourier Transform (IFFT) on the data to generate OFDM symbols, adds CPs to the generated OFDM symbols, generates baseband digital signals, and converts the baseband digital signals into analog signals. The baseband unit 33 outputs the converted analog signals 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, and up-converts the analog signal to a carrier frequency. The RF unit 32 converts the received signal into a digital signal and transmits it via the antenna unit 31. The RF unit 32 may also have a function to control transmission power. The RF unit 32 is also referred to as a transmission power control unit.

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

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

[0069] The PCell is a serving cell included in an MCG (Master Cell Group). The PCell is used by the terminal device 1 in an initial connection establishment procedure or or a cell that performs a connection re-establishment procedure (cells where the treatment was performed).

[0070] A PSCell is a serving cell included in an SCG (Secondary Cell Group). , is the serving cell to which random access is performed by the terminal device 1.

[0071] An SCell may be included in either an MCG or an 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 operated by carrier aggregation.

[0073] One or more downlink BWPs may be configured for each serving cell (or downlink component carrier). One or more uplink BWPs are configured for each component carrier. That's fine.

[0074] Of one or more downlink BWPs configured for a serving cell (or a downlink component carrier), one downlink BWP is set as the active downlink BWP. may be configured (or one downlink BWP may be activated). Of one or more uplink BWPs configured for a serving cell (or uplink component carrier), one uplink BWP is set as the active uplink BWP. (Alternatively, one uplink BWP may be activated).

[0075] The PDSCH, PDCCH, and CSI-RS may be received in an active downlink BWP. The terminal device 1 may attempt to receive the PDSCH, PDCCH, and CSI-RS in an active downlink BWP. The PUCCH and PUSCH are transmitted in an active uplink BWP. The terminal device 1 may transmit PUCCH and PUSCH in the active uplink BWP. The active downlink BWP and the active uplink BWP are also collectively referred to as the active BWP.

[0076] PDSCH, PDCCH, and CSI-RS are transmitted in downlink BWPs other than the active downlink BWP ( The terminal device 1 may not receive the signal in the inactive downlink BWP. In a downlink BWP that is not an active downlink BWP, the reception of PDSCH, PDCCH, and CSI-RS is PUCCH and PUSCH are not active uplink BWPs and therefore no transmission is attempted. The terminal device 1 does not need to transmit the PUCCH and the PUSCH in an uplink BWP that is not an active uplink BWP. Active BWPs are collectively referred to as inactive BWPs.

[0077] A downlink BWP switch is a process of switching one active UE in a serving cell. Deactivate the downlink BWP and deactivate the in-band BWP of the serving cell. This is the procedure to activate one of the active downlink BWPs. Downlink BWP switching may be controlled by the BWP field included in the downlink control information. Downlink BWP switching may also be controlled based on higher layer parameters. good.

[0078] Uplink BWP switching involves deactivating one active uplink BWP ( It is used to activate any inactive uplink BWP other than the one active uplink BWP. The handover may be controlled by the BWP field included in the downlink control information. BWP switching of a link may be controlled based on higher layer parameters.

[0079] Of one or more downlink BWPs configured for the serving cell, two or more A downlink BWP does not have to be set as the active downlink BWP. For a serving cell, one downlink BWP may be active at a given time.

[0080] Two or more of one or more uplink BWPs configured for the serving cell An uplink BWP does not have to be set as the active uplink BWP. For a serving cell, one uplink BWP may be active at a given time.

[0081] Fig. 6 is a schematic block diagram showing an example configuration of a terminal device 1 according to one aspect of the present embodiment. As shown in Fig. 6, the terminal device 1 includes at least one or all of a radio transmission / reception unit (physical layer processing unit) 10 and an upper layer processing unit 14. The radio transmission / reception unit 10 includes at least an antenna unit 11, an RF unit 12, and part or all of a baseband unit 13. The upper layer processing unit 14 includes at least a medium access control layer processing unit 15 and part or all of a radio resource control layer processing unit 16.

[0082] The wireless transceiver 10 includes at least a wireless transmitter 10a and a part or all of a wireless receiver 10b. The device configuration of the baseband unit 13 included in 10b may be the same or different. The RF unit 12 included in the wireless transmitting unit 10a and the RF unit 12 included in the wireless receiving unit 10b may have the same configuration or may have different configurations. The antenna unit 11 and the antenna unit 11 included in the wireless receiving unit 10b have the same device configuration. may or may not be the same.

[0083] For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PRACH. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUCCH. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUSCH. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUCCH DMRS. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUSCH DMRS. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a UL PTRS. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUCCH DMRS. The receiving unit 10a may generate and transmit a baseband signal of the SRS.

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

[0085] The upper layer processing unit 14 outputs the uplink data (transport block) to the radio transceiver unit 10 (or the radio transmitter unit 10a). The upper layer processing unit 14 performs processing on the MAC layer, the integrated packet data protocol layer, the radio link control layer, and the RRC layer.

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

[0087] The radio resource control layer processing unit 16 included in the upper layer processing unit 14 performs processing for the RRC layer. The RRC layer processing unit 16 processes various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 16 manages the RRC messages received from the base station device 3. Set RRC parameters based on the message.

[0088] The radio transmission / reception unit 10 (or the radio transmission unit 10a) performs processing such as modulation and encoding. The radio transceiver 10 (or the radio transmitter 10a) modulates, encodes, and transmits uplink data. The radio transmitter / receiver 10 (or the radio transmitter 10a) generates a physical signal by generating a baseband signal (converting it into a time-continuous signal) and transmits it to the base station device 3. It may be arranged in a certain BWP (active uplink BWP) and transmitted to the base station device 3.

[0089] The radio transmitting / receiving unit 10 (or the radio receiving unit 10b) performs processes such as demodulation and decoding. The radio transceiver 10 (or the radio receiver 30b) may receive a physical signal in a certain BWP (active downlink BWP) of a certain serving cell. The radio receiving unit 10b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information as The radio transmission / reception unit 10 (radio reception unit 10b) outputs the physical signal to the upper layer processing unit 14. A channel access procedure may be performed prior to the

[0090] The RF unit 12 converts (down-converts) the signal received via the antenna unit 11 into a baseband signal by quadrature demodulation, and removes unnecessary frequency components. The analog signal processed by the digital signal processing unit 12 is output 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 extracts a cyclic prefix (CP) from the converted digital signal. The signal from which the CP has been removed is subjected to a fast Fourier transform (FFT) to extract the signal in the frequency domain.

[0092] The baseband unit 13 performs an inverse fast Fourier transform (IFFT) on the uplink data to generate an OFDM symbol, and adds a CP to the generated OFDM symbol. The baseband unit 13 converts the baseband digital signal into an analog signal, and 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, and up-converts the analog signal to a carrier frequency. The RF unit 12 converts the received signal into a digital signal and transmits it via the antenna unit 11. The RF unit 12 may also have a function to control transmission power. The RF unit 12 is also referred to as a transmission power control unit.

[0094] The physical signals (signals) will be explained below.

[0095] The physical signal is a general term for a downlink physical channel, a downlink physical signal, an uplink physical channel, and an uplink physical channel. The physical channel is a general term for a downlink physical channel and an uplink physical channel. The physical signal is a general term for a downlink physical signal and an uplink physical signal. The physical signal may also be called a reference signal.

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

[0097] PUCCH is used to transmit uplink control information (UCI). The PUCCH may be used. The PUCCH may be transmitted to deliver (deliver, transmit, convey) uplink control information. The uplink control information may be mapped to the PUCCH. The terminal device 1 may transmit the PUCCH in which the uplink control information is mapped. The base station device 3 may receive the PUCCH in which the uplink control information is mapped.

[0098] Uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) is used in combination with channel state information (CSI), schedule The packet contains at least part or all of the Scheduling Request (SR) and Hybrid Automatic Repeat request ACKnowledgement (HARQ-ACK) 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). The HARQ-ACK may indicate an acknowledgement (ACK) or a negative acknowledgement (NACK) corresponding to the transport block. The ACK may indicate that the transport block has been decoded successfully. The NACK may indicate that the transport block has not been decoded successfully. The HARQ-ACK information may include a HARQ-ACK codebook including one or more HARQ-ACK bits.

[0101] A transport block is a sequence of information bits delivered from higher layers. Here, the sequence of information bits is also called a bit sequence. Here, the transport block may be transmitted via an Uplink-Shared Channel (UL-SCH) in the transport layer.

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

[0103] The HARQ-ACK may indicate an ACK or NACK corresponding to one Code Block Group (CBG) included in the transport block.

[0104] A scheduling request is a request to retrieve the UL-SCH for a new transmission. The scheduling request bit may be used at least to request a resource. The scheduling request bit may be used to indicate either a positive SR or a negative SR. When the scheduling request bit indicates a positive SR, this is also referred to as "a positive SR is transmitted." A positive SR indicates that the terminal device 1 is to transmit a UL-SCH A positive SR may indicate that resources of UL-SCH are requested for initial transmission. A positive SR may indicate that a scheduling request is triggered by a higher layer. A positive SR may be transmitted when a scheduling request is indicated by a higher layer. When the scheduling request bit indicates a negative SR, this is also referred to as "a negative SR is transmitted." A negative SR may indicate that no resources of UL-SCH are requested by the terminal device 1 for initial transmission. A negative SR may indicate that no resources of UL-SCH are requested for initial transmission by the terminal device 1. A positive SR may indicate that no scheduling request is triggered by higher layers. A negative SR may be conveyed when no scheduling request is indicated by higher layers.

[0105] The channel state information may include at least some or all of a Channel Quality Indicator (CQI), a Precoder Matrix Indicator (PMI), and a Rank Indicator (RI). The CQI is an indicator related to the quality of a propagation path (e.g., propagation strength) or the quality of a physical channel, the PMI is an indicator related to a precoder, and the RI is an indicator related to a transmission rank (or the number of transmission layers).

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

[0107] The PUCCH may correspond to a PUCCH format. The PUCCH may be a set of resource elements used to convey the PUCCH format. The PUCCH may include a PUCCH format. The PUCCH may be transmitted with a certain PUCCH format. The PUCCH format may be interpreted as a format of information. The PUCCH format may also be interpreted as a set of information set in a certain information format.

[0108] The PUSCH carries transport blocks and / or uplink control information. The transport block may be placed on the PUSCH. The transport block delivered by the UL-SCH may be arranged in the PUSCH. The uplink control information may be arranged in the PUSCH. A PUSCH in which one or both of the uplink control information and the PUSCH are arranged may be transmitted. The base station device 3 may receive a PUSCH in which one or both of a transport block and uplink control information are allocated.

[0109] The PRACH may be transmitted to carry a random access preamble. The base station device 1 may transmit the PRACH. The base station device 3 may receive the PRACH. column x u,v (n) is x u,v (n)=x u (mod(n+C v ,L RA )), where x u is a ZC (Zadoff-Chu) sequence. u x u =exp(-jπui(i+1) / L RA ) by j is the imaginary unit. Also, π is the ratio of the circumference of a circle to its circumference. Also, C v corresponds to the cyclic shift of the PRACH sequence. RA corresponds to the length of the PRACH sequence. RA is 839 or 139. Also, i ranges from 0 to L RA -1 and u is the sequence index for the PRACH sequence.

[0110] For each PRACH opportunity, 64 random access preambles are defined. The access preamble is the cyclic shift C of the PRACH sequence. v , and the sequence index u for the PRACH sequence. An index may be assigned to each of the bulls.

[0111] The uplink physical signal may correspond to a set of resource elements. The uplink physical signal does not have to be used to transmit information generated in a higher layer. The uplink physical signal may be used to transmit information generated in a physical layer. The uplink physical signal may be a physical signal used in an uplink component carrier. The terminal device 1 may transmit the uplink physical signal. The base station device 3 may receive the uplink physical signal. In a wireless communication system according to one aspect of this embodiment, at least some or all of the following uplink physical signals are used: It's okay to stay there. ·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 DMRSs for PUSCH (DMRSs related to PUSCH, DMRSs included in PUSCH, and DMRSs corresponding to PUSCH) may be determined based on the set of antenna ports for the PUSCH. For example, the set of antenna ports for DMRSs for PUSCH may be the same as the set of antenna ports for the PUSCH.

[0114] The transmission of the PUSCH and the transmission of the DMRS for the PUSCH are indicated by one DCI format. The PUSCH and the DMRS for the PUSCH may be collectively referred to as a PUSCH. Transmitting the PUSCH may be equivalent to transmitting the PUSCH and the DMRS for the PUSCH.

[0115] The propagation path of the PUSCH may be estimated from the DMRS for the PUSCH.

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

[0117] The transmission of the PUCCH and the transmission of the DMRS for the PUCCH are indicated by one DCI format. Mapping of PUCCH to resource elements (resource element mapping), and to the resource elements of the DMRS for the PUCCH One or both of the mappings may be provided by one PUCCH format. The PUCCH and the DMRS for the PUCCH may be collectively referred to as the PUCCH. Transmitting the PUCCH may also mean transmitting the PUCCH and the DMRS for the PUCCH.

[0118] The propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.

[0119] The downlink physical channel may correspond to a set of resource elements that convey information generated in a higher layer. The downlink physical channel may be a physical channel used in a downlink component carrier. The base station device 3 may transmit the downlink physical channel. The terminal device 1 may receive the downlink physical channel. In a wireless communication system according to one aspect of this embodiment, at least some or all of the following downlink physical channels may be used. ·PBCH(Physical Broadcast Channel) ·PDCCH (Physical Downlink Control Channel) ·PDSCH(Physical Downlink Shared Channel)

[0120] The PBCH may be transmitted to convey one or both of a Master Information Block (MIB) and physical layer control information. Here, the physical layer control information is information generated in the physical layer. The MIB is a set of parameters allocated to a Broadcast Control Channel (BCCH), which is a logical channel of the MAC layer. The BCCH is allocated to a BCH, which is a channel of the transport layer. The BCH may be mapped to the PBCH. The terminal device 1 may receive the PBCH allocated with the MIB and / or physical layer control information. The base station device 3 may transmit the PBCH allocated with the MIB and / or physical layer control information.

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

[0122] The radio frame bits are used to indicate the radio frame in which the PBCH is transmitted (the radio frame including the slot in which the PBCH is transmitted). The radio frame bits include 4 bits. The radio frame bits may be configured by 4 bits of a 10-bit radio frame indicator. For example, the radio frame indicator may be used to identify at least radio frames with index 0 to index 1023.

[0123] The half radio frame bit is used to indicate whether the PBCH is transmitted in the first five subframes or the last five subframes of a radio frame in which the PBCH is transmitted. Here, a half radio frame may be configured to include five subframes. Alternatively, a half radio frame may be configured to include the first five subframes of ten subframes included in a radio frame. Alternatively, a half radio frame may be configured to include the last five subframes of ten subframes included in a radio frame.

[0124] The SS / PBCH block index bits are used to indicate the SS / PBCH block index. The SS / PBCH block index bits include 3 bits. The SS / PBCH block index bits may be configured with 3 bits of a 6-bit SS / PBCH block index indicator. The SS / PBCH block index indicator may be used at least to identify SS / PBCH blocks from index 0 to index 63.

[0125] The subcarrier offset bit is used to indicate a subcarrier offset, which may be used to indicate the difference between the first subcarrier to which the PBCH is mapped and the first subcarrier to which the control resource set with index 0 is mapped.

[0126] The PDCCH may be transmitted to convey downlink control information (DCI). The downlink control information may be arranged in the PDCCH. The terminal device 1 The base station device 3 may receive a PDCCH in which downlink control information is arranged. Alternatively, a PDCCH in which network control information is allocated may be transmitted.

[0127] The downlink control information may be transmitted with a DCI format. The DCI format may be interpreted as a format of the downlink control information. The DCI format may be It may also be interpreted as a set of downlink control information set in a certain downlink control information format.

[0128] DCI format 0_0, DCI format 0_1, DCI format 1_0, and DCI format 1_1 are DCI formats. The downlink 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 for scheduling PUSCHs allocated to a cell. DCI format 0_0 is used at least once in the range of 1A to 1E. It consists of at least all of the above. 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 (Modulation and Coding Scheme field)

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

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

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

[0133] The frequency hopping flag field indicates whether frequency hopping is applied to the PUSCH. It may be used to indicate whether or not

[0134] The MCS field included in DCI format 0_0 specifies the modulation scheme for PUSCH, and , and the target coding rate for the transport block placed on the PUSCH. The size of a transport block (TBS) allocated to the PUSCH may be determined based on one or both of a target coding rate and a modulation scheme for the PUSCH.

[0135] DCI format 0_0 does not include fields used for CSI requests. It's not necessary.

[0136] DCI format 0_0 may not include a carrier indicator field. That is, the serving cell to which the uplink component carrier on which the PUSCH scheduled by DCI format 0_0 is allocated belongs uses the DCI format 0_0. The serving cell is the same as the uplink component carrier on which the PDCCH including the The terminal device 1 may transmit a PUSCH scheduled in accordance with the DCI format 0_0 to an uplink component carrier of a serving cell based on detecting the DCI format 0_0 in a downlink component carrier of the serving cell. It may be recognized that the carrier may be placed.

[0137] DCI format 0_0 may not include the BWP field (BWP indication field). Here, DCI format 0_0 is used to transmit PUSCH without changing the active uplink BWP. The terminal device 1 may recognize that the PUSCH is to be transmitted without switching the active uplink BWP based on detecting the DCI format 0_0 used for scheduling the PUSCH.

[0138] DCI format 0_1 ​​is used for scheduling PUSCHs allocated to a cell. DCI format 0_1 ​​is used at least once in fields 2A to 2H or It consists of at least all of the above. 2A) DCI format specific fields 2B) Frequency domain resource allocation field 2C) Uplink time domain resource allocation field 2D) Frequency hopping flag field 2E) MCS Field 2F) CSI request field 2G) BWP field 2H) Carrier indicator field

[0139] The DCI format specific field included in DCI format 0_1 ​​may indicate 0.

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

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

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

[0143] The BWP field of DCI format 0_1 ​​is the The DCI format 0_1 ​​may be used to indicate an uplink BWP in which a PUSCH to be scheduled is arranged. That is, the DCI format 0_1 ​​may involve a change of the active uplink BWP. The terminal device 1 may recognize the uplink BWP in which the PUSCH is arranged based on detecting the DCI format 0_1 ​​used for scheduling the PUSCH.

[0144] DCI format 0_1, which does not include the BWP field, is used to change the active uplink BWP. The terminal device 1 may recognize that the PUSCH is to be transmitted without switching the active uplink BWP based on detecting DCI format D0_1, which is DCI format 0_1 ​​used for scheduling the PUSCH and does not include a BWP field.

[0145] DCI format 0_1 ​​includes a BWP field, but terminal device 1 does not include the DCI format If the terminal device 1 does not support the BWP switching function by 0_1, the BWP field may be ignored by the terminal device 1. In other words, the terminal device 1 that does not support the BWP switching function , DCI format 0_1 ​​used for PUSCH scheduling and BWP format Based on detecting the DCI format 0_1 ​​including the field, the terminal device 1 may recognize that it will transmit the PUSCH without switching the active uplink BWP. If the terminal device 1 supports the BWP switching function, it may report that "the terminal device 1 supports the BWP switching function" in the RRC layer capability information reporting procedure.

[0146] The CSI request field is used to indicate the reporting of CSI.

[0147] If DCI format 0_1 ​​includes a carrier indicator field, The rear indicator field indicates the uplink component carrier in which the PUSCH is located. DCI format 0_1 ​​may be used to indicate a carrier indicator. If the field is not included, the uplink component carrier on which the PUSCH is allocated is A PDCCH including DCI format 0_1 ​​used for scheduling the PUSCH is arranged. When the number of uplink component carriers configured in the terminal device 1 in a certain serving cell group is two or more (when uplink carrier aggregation is operated in a certain serving cell group), the scheduling of the PUSCH allocated to the certain serving cell group may be the same as the uplink component carrier configured in the certain serving cell group. The carrier indicator field included in DCI format 0_1 ​​used for The number of bits may be 1 or more (for example, 3 bits). When the number of uplink component carriers configured in the terminal device 1 in a certain serving cell group is 1 (when uplink carrier aggregation is not operated in a certain serving cell group), the scheduling of the PUSCH allocated to the certain serving cell group Carrier indicator field included in DCI format 0_1 ​​used for The number of bits in the carrier indicator field may be 0 (or the DCI format 0_1 ​​used for scheduling the PUSCH allocated to the certain serving cell group may not include the carrier indicator field).

[0148] DCI format 1_0 is used at least for scheduling PDSCHs allocated to a certain cell. DCI format 1_0 may use at least some or all of 3A to 3F. It also includes the following: 3A) DCI Format Specific Fields 3B) Frequency domain resource allocation field 3C) Time Domain Resource Allocation Field 3D) MCS field 3E) PDSCH_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 the allocation of frequency resources for the PDSCH.

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

[0152] The MCS field included in DCI format 1_0 specifies the modulation scheme for PDSCH, and , and the target coding rate for the transport block placed on the PDSCH. The size of a transport block (TBS) allocated to the PDSCH may be determined based on one or both of a target coding rate and a modulation scheme for the PDSCH.

[0153] The PDSCH_HARQ feedback timing indication field specifies the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH. It may also be used to indicate a

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

[0155] DCI format 1_0 may not include a carrier indicator field. That is, the downlink component carrier on which the PDSCH scheduled by DCI format 1_0 is arranged may be the same as the downlink component carrier on which the PDCCH including the DCI format 1_0 is arranged. Based on detecting DCI format 1_0 in a certain downlink component carrier, the terminal device 1 may arrange the PDSCH scheduled by the DCI format 1_0 in the downlink component carrier. It may be recognized that the carrier may be placed.

[0156] DCI format 1_0 may not include the BWP field. The DCI format 1_0 may be a DCI format for scheduling the PDSCH without changing the active downlink BWP. The terminal device 1 may recognize that it will receive the PDSCH without switching the active downlink BWP based on detecting the DCI format 1_0 used for scheduling the PDSCH.

[0157] DCI format 1_1 is used at least for scheduling PDSCHs allocated to a certain cell. DCI format 1_1 includes at least some or all of 4A to 4I. It also includes the following: 4A) DCI Format Specific Fields 4B) Frequency domain resource allocation field 4C) Time Domain Resource Allocation Field 4E) MCS Field 4F) PDSCH_HARQ feedback timing indication field 4G) PUCCH resource indication field 4H) BWP Field 4I) Career Indicator Field

[0158] The DCI format specific field included in DCI format 1_1 may indicate 1.

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

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

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

[0162] If DCI format 1_1 includes a PDSCH_HARQ feedback timing indication field, the PDSCH_HARQ feedback timing indication field may be used at least to indicate an offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH. If DCI format 1_1 does not include a PDSCH_HARQ feedback timing indication field, the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH may be specified by a parameter of a higher layer.

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

[0164] The BWP field of DCI format 1_1 is the The DCI format 1_1 may be used to indicate the downlink BWP in which the PUSCH to be scheduled is arranged. That is, the DCI format 1_1 may involve a change of the active downlink BWP. The terminal device 1 may recognize the downlink BWP in which the PUSCH is arranged based on detecting the DCI format 1_1 used for scheduling the PDSCH.

[0165] DCI format 1_1, which does not include the BWP field, is used to change the active downlink BWP. The terminal device 1 may recognize that it will receive the PDSCH without switching the active downlink BWP, based on detecting the DCI format 1_1 that is used for scheduling the PDSCH and does not include the BWP field.

[0166] DCI format 1_1 includes a BWP field, but terminal device 1 does not If the terminal device 1 does not support the BWP switching function by 1_1, the BWP field may be ignored by the terminal device 1. In other words, the terminal device 1 that does not support the BWP switching function , DCI format 1_1 used for PDSCH scheduling and BWP format Based on detecting the DCI format 1_1 including the field, the terminal device 1 may recognize that it will receive the PDSCH without switching the active downlink BWP. If the terminal device 1 supports the BWP switching function, it may report that "the terminal device 1 supports the BWP switching function" in the RRC layer capability information reporting procedure.

[0167] If DCI format 1_1 includes a carrier indicator field, The rear indicator field indicates the downlink component carrier on which the PDSCH is located. DCI Format 1_1 may be used to indicate a carrier indicator. If the field is not included, the downlink component carrier on which the PDSCH is allocated is A PDCCH including DCI format 1_1 used for scheduling the PDSCH is arranged. When the number of downlink component carriers configured in the terminal device 1 in a certain serving cell group is two or more (when downlink carrier aggregation is operated in a certain serving cell group), the scheduling of the PDSCH allocated to the certain serving cell group may be the same as the downlink component carrier configured in the certain serving cell group. The carrier indicator field included in DCI format 1_1 used for The number of bits may be 1 or more (for example, 3 bits). When the number of downlink component carriers configured in the terminal device 1 in a certain serving cell group is 1 (when downlink carrier aggregation is not operated in a certain serving cell group), the scheduling of the PDSCH arranged in the certain serving cell group Carrier indicator field included in DCI format 1_1 used for The number of bits in may be 0 (or the carrier indicator field may not be included in DCI format 1_1 used for scheduling the PDSCH allocated to the certain serving cell group).

[0168] The PDSCH may be transmitted to transmit a transport block. The PDSCH may be used to transmit a transport block delivered by the DL-SCH. The PDSCH may be used to transmit a transport block. A transport block may be allocated to the PDSCH. A transport block corresponding to the DL-SCH may be allocated to the PDSCH. The base station device 3 may transmit the PDSCH. The terminal device 1 may receive the PDSCH.

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

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

[0171] FIG. 7 is a diagram showing an example of the configuration of an SS / PBCH block according to one aspect of this embodiment. In FIG. 7, the horizontal axis is the time axis (OFDM symbol index l sym ), where the vertical axis represents the frequency domain. Block 700 represents a set of resource elements for the PSS. Block 720 shows the set of resource elements for SSS. Blocks 710, 711, 712, and 713 indicate a set of resource elements for the PBCH and DMRS for the PBCH (DMRS associated with the PBCH, DMRS included in the PBCH, and DMRS corresponding to the PBCH).

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

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

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

[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 DMRSs for a PDSCH (DMRSs associated with a PDSCH, DMRSs included in a PDSCH, and DMRSs corresponding to a PDSCH) may be determined based on the set of antenna ports for the PDSCH, i.e., the set of antenna ports for DMRSs for a PDSCH may 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 are indicated by one DCI format. The PDSCH and the DMRS for the PDSCH may be collectively referred to as the PDSCH. Transmitting the PDSCH may be equivalent to transmitting the PDSCH and the DMRS for the PDSCH.

[0178] The propagation path of a PDSCH may be estimated from the DMRS for that PDSCH. A set of resource elements on which a DMRS symbol is transmitted and the symbol of the DMRS for the PDSCH are transmitted. When a set of resource elements on which symbols of a PDSCH are transmitted is included in the same precoding resource group (PRG), the PDSCH on which the symbols of the PDSCH are transmitted for an antenna port may be estimated by the DMRS for the PDSCH.

[0179] The antenna port of the DMRS for the PDCCH (DMRS related to 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 may be estimated from the DMRS for the PDCCH, i.e., the propagation path of the PDCCH may be estimated from the DMRS for the PDCCH. a set of resource elements and a resource on which the DMRS symbols for the PDCCH are transmitted; If the same precoder is applied (or is assumed to be applied) to a set of elements, the symbols of the PDCCH on a certain antenna port are transmitted. The PDCCH to be used may be estimated by the DMRS for the PDCCH.

[0181] The BCH (Broadcast CHannel), UL-SCH (Uplink-Shared CHannel), and DL-SCH (Downlink-Shared CHannel) are transport channels that 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. The transport blocks that pass through the BCH are delivered to the PBCH of the physical layer. The UL-SCH at the transport layer is mapped to the PUSCH at the physical layer, i.e., the transport block carried on the UL-SCH at the transport layer is delivered to the PUSCH at the physical layer. The DL-SCH at the transport layer is mapped to the PDSCH at the physical layer, i.e., the transport block carried on the DL-SCH at the transport layer is delivered to the PDSCH at the physical layer.

[0183] One UL-SCH and one DL-SCH may be provided for each serving cell. The BCH may be provided for the PCell. The BCH does not necessarily have to be provided for the PSCell or SCell.

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

[0185] The BCCH (Broadcast Control CHannel), CCCH (Common Control CHannel), and DCCH (Dedicated Control CHannel) are logical channels. For example, the BCCH is a channel of the RRC layer used for transmitting MIB or system information. The CCCH (Common Control CHannel) may be used for transmitting an RRC message common to a plurality of terminal devices 1. Here, the CCCH may be used, for example, for a terminal device 1 that is not RRC connected. The DCCH (Dedicated Control CHannel) may be used at least for transmitting an RRC message dedicated to the terminal device 1. Here, the DCCH may be used, for example, for a terminal device 1 that is RRC connected.

[0186] Upper layer parameters that are common to multiple terminal devices 1 are also referred to as common upper layer parameters. Here, the common upper layer parameters may be defined as parameters specific to a serving cell. Here, parameters specific to a serving cell are parameters that are common to terminal devices (e.g., terminal devices 1-A, B, C) in which the serving cell is set. It may also be a

[0187] For example, the common upper layer parameters may be included in the RRC messages delivered on the BCCH. For example, common upper layer parameters may be included in RRC messages delivered on the DCCH. .

[0188] Among certain upper layer parameters, upper layer parameters different from common upper layer parameters are also referred to as dedicated upper layer parameters. Here, the dedicated upper layer parameters can provide dedicated RRC parameters to the terminal device 1-A in which the serving cell is configured. In other words, the dedicated RRC parameters are upper layer parameters that can provide unique settings for each of the terminal devices 1-A, 1-B, and 1-C.

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

[0190] The RRC message includes one or more parameters managed in the RRC layer. Here, the parameters managed in the RRC layer are also referred to as RRC parameters. For example, the RRC message may include an MIB. The RRC message may also include system information. The RRC message may also include a message corresponding to a CCCH. The RRC message may also include a message corresponding to a DCCH. An RRC message including a message corresponding to a DCCH is also referred to as a dedicated RRC message.

[0191] The upper layer parameters (parameters of the upper layer) are parameters included in RRC parameters or MAC CE (Medium Access Control Control Element). That is, the upper layer parameters are a general term for the parameters included in MIB, system information, messages corresponding to CCCH, messages corresponding to DCCH, and MAC CE. The parameters included in MAC CE are transmitted by MAC CE (Control Element) commands.

[0192] The procedure performed by the terminal device 1 includes at least some or all of the following steps 5A to 5C. 5A) Cell Search 5B) Random Access 5C) Data communication

[0193] The cell search is a procedure used by the terminal device 1 to synchronize with a certain cell in the time domain and the frequency domain and detect a physical cell identity. That is, the terminal device 1 may perform the cell search to synchronize with a certain cell in the time domain and the frequency domain and detect a physical cell ID.

[0194] The sequence of PSSs is based at least on a physical cell ID. The sequence of SSSs is based at least on a physical cell ID.

[0195] The SS / PBCH block candidates indicate resources on which transmission of the SS / PBCH block is permitted (possibly, reserved, configured, defined, possible).

[0196] The set of SS / PBCH block candidates in a half radio frame is also called the SS burst set. The SS burst set is a set of candidates for the transmission window. It is also called the SS transmission window, the DRS transmission window, or the Discovery Reference Signal transmission window. The SS burst set is a general term that includes at least the first SS burst set and the second SS burst set.

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

[0198] Random access is a procedure that includes at least some or all of message 1, message 2, message 3, and message 4.

[0199] Message 1 is a procedure for transmitting a PRACH by the terminal device 1. The terminal device 1 A PRACH is transmitted in one PRACH opportunity selected from one or more PRACH opportunities based at least on an index of a SS / PBCH block candidate detected based on a cell search. Each PRACH opportunity is defined based on at least time and frequency domain resources. can be.

[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 in which the SS / PBCH block is detected. .

[0201] Message 2 is a procedure in which the terminal device 1 attempts to detect DCI format 1_0 with a CRC (Cyclic Redundancy Check) scrambled with an RA-RNTI (Random Access - Radio Network Temporary Identifier). The terminal device 1 attempts to detect a PDCCH including this DCI format in a control resource set given based on an MIB included in a PBCH included in an SS / PBCH block detected based on a cell search and in resources indicated based on the setting of a search space set. Message 2 is also referred to as a random access response.

[0202] Message 3 is contained in DCI format 1_0 detected by the Message 2 procedure. The PUSCH is transmitted by the random access response grant. Here, the random access response grant grant) is indicated by the MAC CE included in the PDSCH scheduled by the DCI format 1_0.

[0203] The PUSCH scheduled based on the random access response grant is Message 3 PUSCH contains a contention resolution identifier MAC CE. The contention resolution identifier MAC CE is used to identify the contention. Contains the conflict resolution ID.

[0204] Message 3 PUSCH retransmissions are scheduled with DCI format 0_0 with CRC scrambled based on TC-RNTI (Temporary Cell - Radio Network Temporary Identifier).

[0205] Message 4 is a procedure for attempting to detect DCI format 1_0 with a CRC scrambled based on either a C-RNTI (Cell-Radio Network Temporary Identifier) ​​or a TC-RNTI. The terminal device 1 performs scheduling based on the DCI format 1_0. The PDSCH may include a collision 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 in the resources specified based on the control resource set and the search space set (monitors the PDCCH, detects the PDCCH, etc.). monitor).

[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 may consist of contiguous resources (non-interleaved mapping) or distributed resources. (interleaver mapping).

[0209] A set of resource blocks constituting the control resource set may be indicated by a higher layer parameter, and the number of OFDM symbols constituting the control resource set may be indicated by a higher layer parameter.

[0210] The terminal device 1 attempts to detect the PDCCH in the search space set. Attempting to detect a PDCCH in the search space set may be attempting to detect a PDCCH candidate in the search space set, or attempting to detect a DCI format in the search space set. Alternatively, the PDCCH may be detected in the control resource set. Alternatively, the PDCCH may be detected in the control resource set. , it may be to attempt to detect the DCI format in the control resource set.

[0211] The search space set is defined as a set of PDCCH candidates. The search space set may be a Common Search Space (CSS) set or a UE-specific Search Space (USS) set. The terminal device 1 attempts to detect PDCCH candidates in some 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 search space set.

[0212] The Type 0 PDCCH common search space set is used as the common search space set with index 0. The Type 0 PDCCH common search space set may include the common search space with index 0. It may be a set.

[0213] The CSS set is a collective term for 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, and a Type 3 PDCCH common search space set. The USS set is also called a UE-specific PDCCH search space set.

[0214] A search space set is associated with (contains, corresponds to) a control resource set. The index of the control resource set associated with the search space set is determined by a higher layer parameter. It may also be shown.

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

[0216] A monitoring occasion for a certain set of search areas is defined as The monitoring opportunity for a search space set may correspond to an OFDM symbol in which the first OFDM symbol of the associated control resource set is located. The monitoring opportunity for a search space set may correspond to resources of a control resource set associated with the search space set starting from the first OFDM symbol of the control resource set. The monitoring opportunity for the search space set is based on at least some or all of the PDCCH monitoring interval, the PDCCH monitoring pattern within the slot, and the PDCCH monitoring offset.

[0217] 8 is a diagram illustrating an example of a monitoring opportunity for a search area set according to one aspect of the present embodiment. In FIG. 8, 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] In Figure 8, the solid white blocks in primary cell 301 indicate search area set 91, the solid black blocks in primary cell 301 indicate search area set 92, the blocks in secondary cell 302 indicate search area set 93, and the blocks in secondary cell 303 indicate search area set 94.

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

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

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

[0222] The monitoring interval of the search area set 94 is set to 2 slots, the monitoring offset of the search area set 94 is set to 1 slot, and the monitoring pattern of the search area set 94 is set to [1,0 ,0,0,0,0,0,0,0,0,0,0,0,0,0]. The monitoring opportunity for search area set 94 corresponds to the first OFDM symbol (OFDM symbol #0) in each odd slot.

[0223] The Type 0 PDCCH common search space set is the SI-RNTI (System Information-Radio Network Time Interference) It may be used at least for DCI formats with CRC (Cyclic Redundancy Check) sequences scrambled by a Temporary Identifier (CDMA).

[0224] The Type 0a PDCCH common search space set is the SI-RNTI (System Information-Radio Network Time Interference (SNTI)). CRC (Cyclic Redundancy Check) scrambled by a Temporary Identifier It may be used at least for DCI formats involving sequences.

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

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

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

[0228] The UE dedicated PDCCH search space set may be used at least for DCI formats with CRC sequences scrambled by the C-RNTI.

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

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

[0231] In the configured grant, PUSCH is scheduled. An uplink grant for scheduling is configured for each transmission period of the PUSCH. When the PUSCH is scheduled by the uplink DCI format, some or all of the information indicated by the uplink DCI format may be indicated by the uplink grant configured in the case of configured scheduling.

[0232] The PUSCH transmission may correspond to a configured scheduling type 1 or a configured scheduling type 2. The PUSCH transmission may be either scheduling type 1 or configured scheduling type 2. The configured scheduling type 1 PUSCH transmission may be configured semi-statically. For example, the configured scheduling type 1 PUSCH transmission may be operated in response to reception of certain higher layer parameters. The certain higher layer parameters may be configuredGrantConfig. For example, configuredGrantConfig may include rrc-ConfiguredUplinkGrant. The PUSCH transmission may be operated without detecting an uplink grant in DCI.

[0233] The configured scheduling type 2 PUSCH transmission is semi-persistently For example, it may be scheduled by an uplink grant. An uplink grant may be an activation DCI (or For example, after receiving certain higher layer parameters, the configured scheduling type 2 PUSCH transmission may be scheduled by a certain uplink grant. The certain higher layer parameters may be configuredGrantConfig. For example, configuredGrantConfig may not include rrc-ConfiguredUplinkGrant.

[0234] System frame number (SFN)n f is given to the radio frame The system frame number 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 signaled in the MIB. For example, 6 bits (e.g., 6 most significant bits) of the 10-bit system frame number may be signaled in the MIB. At least a portion of the system frame number may be determined based on the PBCH that carries the MIB. For example, 4 bits (e.g., 4 least significant bits) of the 10-bit system frame number may be signaled in the PBCH transport block as part of channel coding.

[0235] The upper layer parameter ServingCellConfig may be configured in one serving cell. The upper layer parameter ServingCellConfig is a combination of dedicated upper layer parameters and common upper layer parameters. In one serving cell, one or more BWPs are configured. For example, one or more uplink BWPs (UL BWPs) and one or more downlink BWPs (DL BWPs) may be configured in one serving cell. For example, the downlink BWPs may be configured by an upper layer parameter BWP-Downlink. For example, the downlink BWPs may be configured by a common upper layer parameter BWP-DownlinkCommon. For example, the downlink BWPs may be configured by a dedicated upper layer parameter BWP-DownlinkDedicated. For example, the uplink BWPs may be configured by an upper layer parameter BWP-uplink. For example, the uplink BWPs may be configured by a common upper layer parameter BWP-UplinkCommon. For example, the uplink BWPs may be configured by a 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 configured for each BWP for PUSCH transmission. PUSCH-Config may include multiple upper layer parameters related to PUSCH transmission. The PUSCH-Config may be a UE-specific setting. For example, the PUSCH-Config for the terminal device 1A, the terminal device 1B, and the terminal device 1C in one cell, or multiple higher layer parameters included in the PUSCH-Config, may be different. The PUSCH-ConfigCommon may be set for each BWP for PUSCH transmission. The PUSCH-ConfigCommon may include multiple higher layer parameters related to PUSCH transmission. The PUSCH-ConfigCommon may be a cell-specific setting. For example, the PUSCH-ConfigCommon for the terminal device 1A, the terminal device 1B, and the terminal device 1C in one cell may be common. For example, the PUSCH-ConfigCommon may be provided by system information.

[0236] At least two transmission schemes may be supported for the PUSCH. For example, codebook-based transmission may be one of the transmission schemes for the PUSCH. For example, non-codebook-based transmission may be one of the transmission schemes for the PUSCH. A higher layer parameter may provide either codebook transmission or non-codebook transmission. For example, if 'codebook' is set for the higher layer parameter, the terminal device 1 may be configured for codebook transmission. For example, if 'nonCodebook' is set for the higher layer parameter, the terminal device 1 may be configured for non-codebook transmission. The higher layer parameter may be txConfig. The higher layer parameter may be usage. For example, if the higher layer parameter is not set, the terminal device 1 may not expect to be scheduled by either DCI format 0_1 ​​or DCI format 0_2. If the PUSCH is scheduled by DCI format 0_0, transmission of the PUSCH may be based on at least one antenna port.

[0237] In codebook transmission, the PUSCH may be scheduled by a DCI format. The DCI format may be any of DCI format 0_0, DCI format 0_1, and DCI format 0_2. In codebook transmission, the PUSCH may be configured to be transmitted semi-statically. The terminal device 1 may determine one or more precoders for PUSCH transmission. For example, the precoder may be determined based on at least some or all of an SRS Resource Indicator (SRI), a Transmitted Precoding Matrix Indicator (TPMI), and a transmission rank (transmission rank). For example, the SRI may be provided by a DCI field of an SRS resource indicator of 1 or 2. For example, the TPMI may be provided by a DCI field of precoding information of 1 or 2. For example, the transmission rank may be provided by a DCI field of the number of layers (number of transmission layers). The SRI may be provided by a first higher layer parameter. The TPMI and transmission rank may be provided by a second higher layer parameter. The first higher layer parameter may be srs-ResourceIndicator or srs-ResourceIndicator2. The second higher layer parameter may be precodingAndNumberOfLayers or precodingAndNumberOfLayers2.

[0238] The SRS resource set applied to the PUSCH may be determined based on higher layer parameters. The PUSCH is scheduled by 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 configured in SRS-Config.

[0239] If the upper layer parameter usage is set to 'codebook', one or two SRS resource sets are specified 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 configured, the SRI and TPMI may be given by the DCI field. The TPMI may be used to indicate a precoder. The precoder may be one of v precoders. The SRS resource may be applied across layers. When multiple SRS resources are configured, one SRS resource may be selected by the SRI. The transmit precoder (precoder) may be selected from a codebook (uplink codebook). For example, the codebook may include the number of antenna ports. The number of antenna ports is determined by the higher layer parameters nrofSRS-Ports and If 'codebook' is set in the upper layer parameter txConfig, at least one SRS resource may be configured in the terminal device 1. The SRI to be indicated is determined by the SRI. The SRS resource may be associated with the transmission of the SRS resource identified by the SRS resource.

[0241] If two SRS resource sets are configured, one or two SRIs and one or two TPMIs are , may be given by a DCI field. For example, the DCI field may be an SRS resource indicator The terminal device 1 may apply the indicated SRI and TPMI to one or more PUSCH repetitions. The TPMI may be determined based on the code point of the SRS resource set indication. The precoder may be used to indicate the precoder. The precoder may be applied to the 0th to v-1th layers. The precoder corresponds to the SRS resource selected by the SRI. Multiple SRS resources may be configured for the applicable SRS resource set. In one or two TPMIs, a transmission precoder (precoder) may be selected from a codebook (uplink codebook). When two SRIs are indicated, 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 a higher layer parameter.

[0242] In codebook transmission, the terminal device 1 may determine a codebook subset. For example, the codebook subset may be determined based at least on the TPMI. The codebook subset may be determined in response to receiving certain higher layer parameters. The certain higher layer parameters may be codebookSubset or codebookSubsetDCI-0-2. A certain higher layer parameter may be set to any of 'fullyAndPartialAndNonCoherent', 'partialAndNonCoherent', and 'nonCoherent'. For example, if at least a certain higher layer parameter is set to 'partialAndNonCoherent', the codebook subset associated with a two-port SRS resource (an SRS resource with two ports) may be 'nonCoherent'. For example, a 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 a UE capability. If the terminal device 1 reports a UE capability of 'partialAndNonCoherent' transmission, the terminal device 1 may not expect a codebook subset having 'fullyAndPartialAndNonCoherent' to be configured.

[0244] If the terminal device 1 reports a UE capability of 'nonCoherent' transmission, the terminal device 1 may not expect a codebook subset with 'fullyAndPartialAndNonCoherent' or 'partialAndNonCoherent' to be configured.

[0245] If the number of antenna ports indicates that the maximum number of SRS antenna ports to be configured is 2, the terminal device 1 may not expect that a higher layer parameter to which 'partialAndNonCoherent' is set is configured. The higher layer parameter may be codebookSubset or codebookSubsetForDCI-Format0-2. The number of antenna ports may be determined by the higher layer parameter nrofSRS-Ports.

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

[0247] The terminal device 1 uses the SRS resource indicated by the DCI format or the upper layer parameter. Use the same antenna port or ports as the SRS port or ports at the source. For example, the SRS port may be an antenna port for PUSCH transmission. The DMRS antenna ports may be determined according to the ordering of the DMRS ports.

[0248] When multiple SRS resources are configured by an SRS resource set, the terminal device 1 The SRS resource set may expect the higher layer parameter nrofSRS-Ports to be set with the same value for all SRS resources. It may be a higher layer parameter SRS-ResourceSet with meter usage.

[0249] If 'fullpowerMode2' is set for the upper layer parameters, one or more SRS resources with the same or different SRS port numbers can be configured in one SRS resource set. A maximum of two SRS resources may be configured in an SRS resource set. If 'fullpowerMode2' is set for the upper layer parameters, a maximum of two different spatial relations may be configured for all SRS resources in an SRS resource set. If 'fullpowerMode2' is set for the upper layer parameters, a maximum of two or four SRS resources may be configured in an SRS resource set. Also, a maximum of eight SRS resources may be configured in an SRS resource set. An SRS resource set may be an SRS resource set with the upper layer parameter usage set to 'codebook'.

[0250] In non-codebook transmission, the PUSCH is DCI format 0_0, DCI format 0_1, or , may be scheduled by DCI format 0_2. The terminal device 1 may determine the precoder and transmission rank of the PUSCH based on the SRI. For example, when multiple SRS resources are configured, the SRI is given by one or two SRS resource indications in the DCI. For example, the SRI may be given by a higher layer parameter, and the SRS resource set applied to the PUSCH may be defined by an entry in the higher layer parameter. The upper layer parameter may be srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2.

[0251] The terminal device 1 may use one or more SRS resources for SRS transmission. The maximum number of SRS resources in one SRS resource set may be transmitted to the base station device 3 as a UE capability. The SRS resources may be configured for simultaneous transmission in the same OFDM symbol. Multiple SRS resources transmitted simultaneously may occupy the same resource block. One SRS port may be configured for each SRS resource. One or two SRS resource sets may be configured in the upper layer parameter srs-ResourceSetToAddModList with the upper layer parameter usage set to 'nonCodebook' in the upper layer parameter SRS-ResourceSet. If two SRS resource sets are configured, one or two SRIs may be given by the DCI field. The DCI field may be a DCI field for two SRS resource indications.

[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. Alternatively, it may be applied to multiple PUSCH repetitions. The maximum number of SRS resources per SRS resource set may be four. The maximum number of SRS resources per SRS resource set configured for data transmission is 8. Each of the one or two SRIs indicated is the SRS resource set identified by the SRI. The SRS resource set may be related to the latest transmission of the SRS resource of the set. The SRS transmission may be before the PDCCH carrying the SRI. The terminal device 1 may not expect that different numbers of SRS resources are configured 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 apply the "indicated TCI state" to one or more PUSCH repetitions. Each of the one or two "indicated TCI states" may be associated with the most recent indication of the TCI state indicated by the first DCI format. The first DCI format may be transmitted before the second DCI format that schedules the PUSCH repetition.

[0254] Multiple PDCCH candidates (PDCCH candidate(s)) are searched for and configured by higher layer parameters. When a search area set is associated with the PDCCH candidate, one PDCCH candidate is used. The upper layer parameter may be a PDCCH candidate that starts earlier among the PDCCH candidates. The upper layer parameter may be searchSpaceLinking.

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

[0256] When an aperiodic SRS resource set is configured, the NZP-CSI RS may be indicated via the SRS request field. The SRS request field may be one of the DCI fields in any of DCI Format 0_1, DCI Format 0_2, DCI Format 1_1, and DCI Format 1_2. A first upper layer parameter may indicate an association between an aperiodic SRS (aperiodic SRS triggering state) and an SRS resource set. The first upper layer parameter, the triggered SRS resource, srs-ResourceSetId, and csi-RS may be configured in the upper layer parameter SRS-ResourceSet. The upper layer parameter csi-RS may indicate the NZP-CSI-RS-ResourceId. The upper layer parameter SRS-ResourceSet associated with the SRS request may be defined by an entry in a list, which is an upper layer parameter. The list, which is an upper layer parameter, may be the upper layer parameter srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2. The terminal device 1 may not be expected to update the precoding information (SRS precoding information). For example, if the gap from the last OFDM symbol of reception of the aperiodic NZP-CSI-RS resource to the first OFDM symbol of aperiodic SRS transmission is 42 OFDM symbols or less, the terminal device 1 may not be expected to update the precoding information.

[0257] If an aperiodic SRS associated with the aperiodic NZP CSI-RS resource is configured, the presence of the CSI-RS may be indicated by the SRS request field. If the value of the SRS request field is not '00' and the scheduling DCI is not used for cross carrier scheduling or cross bandwidth part scheduling, the presence of CSI-RS may be indicated by the SRS request field.

[0258] The terminal device 1 may perform one-to-one mapping. The one-to-one mapping may be a mapping from the SRI to the PUSCH layer corresponding to the DMRS port. PUSCH layers from 0 to v-1 may be provided, where v may be the number of layers. The number of layers may be set by a higher layer parameter. The number of layers may be specified by DCI. The terminal device 1 may transmit the PUSCH using the same antenna port as the SRS port. For example, the SRS port in the SRS resource specified by the SRI may be indexed as pi = 1000 + i. For example, the SRS port in the (i+1)th SRS resource may be pi. Also, the SRS port in the (i+1)th SRS resource may be indexed as pi. pi may be 1000 + i. That is, pi = 1000 + i.

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

[0260] One or more SRS resource sets (Sounding Reference Signal resource sets) are The first upper layer parameter may be set by the higher layer parameter SRS-ResourceSet or SRS-PosResourceSet. K SRS resources may be configured in each SRS resource set. K may be an integer greater than or equal to 1. The maximum value of K may be indicated by the UE capability. The maximum value of K may be 16. The adaptability of the SRS resource set may be configured by the second upper layer parameter. The second upper layer parameter may be usage. For example, if 'beamManagement' is set for the second upper layer parameter, one SRS resource may be transmitted in each of one or more SRS resource sets. For example, an SRS resource may be transmitted at a given time instance. Multiple SRS resources in different SRS resource sets may be transmitted simultaneously. For example, multiple SRS resources with the same time domain behavior may be transmitted simultaneously in different SRS resource sets of the same BWP.

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

[0262] The PUSCH may be transmitted over multiple slots, e.g., a transport block. The PUSCH carrying the traffic may be transmitted over multiple slots. A port block may be transmitted over multiple slots. To determine the TBS, A certain number of slots may be indicated by a first higher layer parameter, e.g., TBS determination. The number of slots used for TBS determination may be indicated by a first upper layer parameter. The first upper layer parameter may be the upper layer parameter numberOfSlotsTBoMS. The number of slots may be different from the number of repetitions. The number of repetitions of the number of slots may be determined for TBS determination. For example, the number of repetitions may be determined by the second upper layer parameter. The second higher layer parameter may be included in a resource allocation table. The product of a certain number of slots and a certain number of repetitions may not be expected to exceed 32. The product of a certain number of slots and a certain number of repetitions may not be expected to exceed a certain value. The certain value may be indicated by the UE capability. When DMRS bundling is applied, the product of a certain number of slots and a certain number of repetitions may be greater than 1. For example, when DMRS bundling is applied, the certain number of repetitions may be greater than 1. When the certain number of repetitions is 1, the time domain window to be set may not be determined (generated). When the product of a certain number of slots and a certain number of repetitions is 1, the time domain window to be set may not be determined (generated). The certain number of slots may be N TBoMS The number of iterations may be K repetition Yes The product of the number of slots and the number of repetitions is N TBoMS K repetition in It's okay to have it.

[0263] Repeated transmission may be applied to the PUSCH. Repeated transmission may be applied to the PUSCH scheduled by DCI. Repetition transmission may be applied to a PUSCH scheduled by DCI format 0_1. The PUSCH repetition type may be either PUSCH repetition type A or PUSCH repetition type B. The PUSCH repetition type may be configured by a higher layer parameter. The PUSCH repetition type may be based on the DCI format. For example, a first PUSCH repetition type for a PUSCH scheduled by DCI format 0_1 ​​may be different from a second PUSCH repetition type for a PUSCH scheduled by DCI format 0_2.

[0264] The number of repetitions may be configured by higher layer parameters. The number of repetitions for PUSCH repeat transmission may be set by a higher layer parameter. For example, the higher layer parameter numberOfRepetitions may be a parameter including the number of repetitions for PUSCH repeat transmission. In PUSCH repeat transmission corresponding to PUSCH repetition type A, the number of repetitions for the PUSCH repeat transmission may be determined by the value of the higher layer parameter numberOfRepetitions. In PUSCH repetition type A, the number of repetitions for a PUSCH whose transmission is indicated by a DCI format with a CRC scrambled by C-RNTI and either MCS-C-RNTI or CS-RNTI may be equal to numberOfRepetitions if there is numberOfRepetitions in the resource allocation table. When one PUSCH-TimeDomainResourceAllocation includes one or more PUSCH-Allocations, the higher layer parameter numberOfRepetitions may be set for each PUSCH-Allocation. Furthermore, the PUSCH-TimeDomainResourceAllocation may be referred to as a resource allocation table.

[0265] The upper layer parameter pusch-AggregationFactor is the repetition factor for PUSCH repetition transmission. The parameter may be a parameter indicating the number of PUSCH repetitions corresponding to PUSCH repetition type A. In transmission, the number of repetitions for the PUSCH repeat transmission may be determined by the value of the higher layer parameter pusch-AggregationFactor. In PUSCH repetition type A, the number of repetitions of a PUSCH whose transmission is indicated by a DCI format with a CRC scrambled by C-RNTI and either MCS-C-RNTI or CS-RNTI may be equal to pusch-AggregationFactor if pusch-AggregationFactor is configured. pusch-AggregationFactor may be configured for PUSCH-Config.

[0266] The number of repetitions corresponding to PUSCH repetition type A is the slot number for PUSCH repetition transmission. Also, one TB may be repeated in one or more slots. PUSCH repetitions transmitted in different slots may be assigned to the same OFDM symbol. may be applied.

[0267] In PUSCH repetition transmission corresponding to PUSCH repetition type B, nominal repetition is used. It may be based on Repetition and Actual Repetition.

[0268] When two SRS resource sets (a first SRS resource set and a second SRS resource set) are configured, and the number of repetitions K in PUSCH repetition type A is greater than 1, the same OFDM symbol allocation may be applied over K consecutive slots, and the PUSCH is allocated to one The SRS resource set indication field may be restricted to the transmission layer. The terminal device 1 may repeat the transport block over K consecutive slots. If "00" is indicated, the first SRS resource set may be associated with K consecutive slots. If codepoint "01" is indicated in the SRS resource set indication field, the second SRS resource set may be associated with K consecutive slots. Two SRS resource sets may be associated with K consecutive slots. If the code point "10" in the display field is specified, the first SRS resource set and the second Two SRS resource sets may be associated with K consecutive slots. For example, if K=2, The first SRS resource set may be applied to the first slot, and the second SRS resource set may be applied to the second slot. If K>2 and cyclic mapping is enabled, the first and second SRS resource sets may be applied to the first and second slots of K consecutive slots, respectively, and the same SRS resource set mapping pattern may continue for the remaining slots of the consecutive K slots. If K>2 and sequential mapping is enabled, the first SRS resource set may be applied to the first and second slots of K consecutive slots, and the second SRS resource set may be applied to the third and fourth slots of K consecutive slots, and the same SRS resource set mapping pattern may continue for the remaining slots of the consecutive K slots. If codepoint "11" is indicated in the SRS resource set indication field, the first SRS resource set and the second SRS resource set may be associated with K consecutive slots. For example, if K=2, the second SRS resource set may be applied to the first slot, and the first SRS resource set may be applied to the second slot. If K>2 and cyclic mapping is enabled, the second and first SRS resource sets may be applied to the first and second slots of K consecutive slots, respectively, and the same SRS resource set mapping pattern may continue for the remaining slots of the K consecutive slots. If K>2 and sequential mapping is enabled, the second SRS resource set may be applied to the first and second slots of K consecutive slots, and the first SRS resource set may be applied to the third and fourth slots of the K consecutive slots, and the same SRS resource set mapping pattern may continue for the remaining slots of the K consecutive slots. The SRS resource set indicator field may be included in one or both of DCI format 0_1 ​​and DCI format 0_2.Two SRS resource sets may be configured, with usage in the SRS-ResourceSet set to 'codebook' or 'noncodebook'.

[0269] The SRS resource set indication field may determine one or two TCI states. For example, if the SRS resource set indication field indicates "00" or "01," one TCI state may be used. For example, if the SRS resource set indication field indicates "10" or "11," two TCI states may be used. The one or two TCI states may be one or both of the UL TCI state (UL-TCIState) and the DL / Joint TCI state (DLorJoint-TCIState). The one or two TCI states may 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 indicates either or both of the primary and secondary TCI states. The SRS resource set indication field may determine which TCI state to use. For example, if the SRS resource set indication field indicates "00," the first TCI state may be used. For example, if the SRS resource set indication field indicates "01," the second TCI state may be used. For example, if 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 Points or Transmit / Receive Points) are used. The base station device 3 may be configured with multiple TRPs (Multi-TRP). The terminal device 1 may be scheduled by two TRPs in one serving cell. In Multi-TRP, one of single-DCI and multi-DCI operation modes may be used. In Multi-TRP, uplink control may be completed in the MAC layer and the physical layer. In Multi-TRP, downlink control may be completed in the MAC layer and the physical layer. In Single-DCI mode, the terminal device 1 may be scheduled by the same DCI for two TRPs. In Multi-DCI mode, the terminal device 1 may be scheduled by independent DCI from each TRP. In Multi-DCI mode, each TRP in Multi-TRP may be identified by TRP information. That is, one TRP in Multi-TRP may be identified by one piece of TRP information. The TRP information may be used to select one TRP. Furthermore, one control resource set (CORESET: Control Resource Set) may be associated with a CORESET resource pool index. The terminal device 1 may transmit a PUSCH based on an index of a CORESET resource pool. The TRP information may be a CORESET pool index. The TRP information may be provided by a TRP indication field.

[0272] The terminal device 1 may have the upper layer parameter TCI-State set. For example, the terminal device 1 , one list may be configured in the higher layer parameter PDSCH-Config. may include up to M higher layer parameters TCI-State. One list may be a list of up to M higher layer parameters TCI-State. One list may be configured for the terminal device 1 to decode (receive) the PDSCH according to the PDCCH with DCI. M may depend on the terminal capability (UE capability). For example, M may depend on the terminal capability maxNumberConfiguredTCIStatePerCC. TCI-State may also be referred to as a TCI state.

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

[0274] The QCL relationship is either the upper layer parameter qcl-Type1 or the upper layer parameter qcl-Type2, or both. For example, the QCL relationship may be set by the higher layer parameter qcl-Type1 for the first DL RS and the higher layer parameter qcl-Type2 for the second DL RS. The first downlink reference signal and the second downlink reference signal may be set by one or both of the first downlink reference signal and the second downlink reference signal. If the second downlink reference signal is different, the QCL type of qcl-Type1 may not be the same as the QCL type of qcl-Type2. The QCL type corresponding to each downlink reference signal may be given by the higher layer parameter qcl-Type in the higher layer parameter QCL-Info. The QCL type may be any of type A, type B, type C, and type D.

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

[0276] The terminal device 1 may be configured with the upper layer parameter UL-TCIState. One list may be configured in the higher layer parameter BWP-UplinkDedicated. One list may include up to 64 upper layer parameter UL-TCIStates. One list may be a list of up to 64 upper layer parameter UL-TCIStates. Each UL-TCIState (or UL-TCIState configuration) may include a parameter for configuring one reference signal. For example, each UL-TCIState may include a parameter for configuring one reference signal for determining uplink transmit spatial filters for some or all of the PUSCH, PUCCH, and SRS. One list may be an upper layer parameter ul-TCI-StateList. A UL-TCIState may also be referred to as a TCI state, a UL TCI state, or a unified TCI state.

[0277] The UL-TCIState may be an upper layer parameter TCI-UL-State. The 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 one corresponding QCL type.

[0278] When DLorJointTCIState or UL-TCIState is set, the terminal device 1 may transmit a PUSCH according to a spatial relation. For example, the spatial relation may be a single reference signal. For example, one reference signal may be a reference signal for uplink transmission. The reference signal may be a reference signal for determining an inter-TCI filter. One reference signal may be a reference signal set in the indicated DLorJointTCIState or the indicated UL-TCIState with qcl-Type set to typeD. The reference RS in the indicated DLorJointTCIState may be a CSI-RS resource in the upper layer parameter NZP-CSI-RS-ResourceSet. The reference RS in the indicated UL-TCIState may be a CSI-RS resource in NZP-CSI-RS-ResourceSet. The indicated UL-TCIState (Indicated UL-TCIState) may be the TCI state, UL TCI state, or unified TCI state indicated by DCI format 1_1 or DCI format 1_2. The indicated DLorJointTCIState (Indicated DLorJointTCIState) may be the TCI state, DL / Joint TCI state, or 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) may be set in one BWP of one component carrier. If the setting of DLorJointTCIState or the setting of UL-TCIState is not in one BWP, the terminal device 1 may apply the setting of DLorJointTCIState or the setting of UL-TCIState from the reference BWP.

[0280] The terminal device 1 has both the first upper layer parameter and the second upper layer parameter set. The first higher layer parameter may be any one of TCI-State, SpatialRelationInfo, and PUCCH-SpatialRelationInfo. The second higher layer parameter may be any one of DLorJointTCIState and UL-TCIState. If TCI-State is set on any component carrier in a list, the second higher layer parameter may not be set on any component carrier in the same band in the list. The list may be configured by the higher layer parameter simultaneousTCI-UpdateList1, the higher layer parameter simultaneousTCI-UpdateList2, the higher layer parameter simultaneousSpatial-UpdatedList1, or the higher layer parameter simultaneousSpatial-UpdatedList2.

[0281] The terminal device 1 may receive an activation command. The code may be used to map up to eight "TCI states and / or TCI state pairs" to code points of the DCI field 'Transmission Configuration Indication'. A TCI state pair (Joint TCI state) may involve one TCI state (DL TCI state) for multiple downlink channels / signals and one TCI state (UL TCI state) for multiple uplink channels / signals. The multiple downlink channels / signals may be some or all of the PDSCH, PDCCH, and CSI-RS. The multiple uplink channels / signals may be some or all of the PUSCH, PUCCH, and SRS. A DCI (DCI format) may be composed of one or more DCI fields. For example, a DCI (DCI format) may be composed of a TCI field ('Transmission Configuration Indication' field).

[0282] If a first set of one or more TCI status IDs is activated in a second set, the first set is applicable for downlink BWP on the indicated component carrier. One or more TCI status IDs in the first set may be active in the third set. If configured, the first set may be applied for downlink BWP and uplink BWP on the indicated component carrier. The second set may be applied for one or more component carriers. The first set may be a set of one or both of a component carrier and one or more downlink BWPs. The second set may be a set of some or all of one or more component carriers, one or more downlink BWPs, and one or more uplink BWPs.

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

[0284] The terminal device 1 provides the indicated DLorJointTCIState or the indicated UL-TCIState. The DCI format may be the downlink assignment format 1_1 / 1_2. For example, if DCI format 1_1 / 1_2 does not involve downlink assignment, the terminal device 1 determines that CS-RNTI is used to scramble the CRC for DCI, that RV (Redundancy version) is all 1, and that MCS is all 1. It may be assumed that NDI is 0, that all 0s are set for FDRA type 0, and that all 1s are set for FDRA type 1.

[0285] The terminal device 1 may receive an upper layer configuration after the terminal device 1 receives the first configuration of DLorJoint-TCIState and before one of the configured TCI states is applied. In this case, the terminal device 1 may assume that the DMRS of the PDSCH, the DMRS of the PDCCH, and the CSI-RS to which the indicated TCI state is applied are the SS / PBCH block and the QCL.

[0286] After the terminal device 1 receives the initial setting of DLorJoint-TCIState or UL-TCIState and before one indicated TCI state from the set TCI states is applied, the terminal device 1 may assume that the first uplink transmit spatial filter (UL TX spatial filter) for the 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 the uplink transmit spatial filter for PUSCH transmission scheduled by a random access response grant in an initial access procedure. stomach.

[0287] After the terminal device 1 receives the DLorJoint-TCIState setting, and the TCI state is changed to Before one "indicated TCI state" is applied, the DMRS of the PDSCH, the DMRS of the PDCCH, and the CSI-RS to which the indicated TCI state is applied may be an SS / PBCH block or a CSI-RS resource and a QCL. For example, the SS / PBCH block or the CSI-RS resource may be identified in a random access procedure initiated by reconfiguration with synchronization. For example, the terminal device 1 may receive the configuration 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 one "indicated TCI state" is applied from the set TCI states, a first uplink transmission spatial filter for PUSCH, PUCCH, and SRS to which the instructed TCI state is applied. The second uplink transmit spatial filter may be assumed to be the same as the second uplink transmit spatial filter. The second uplink transmit spatial filter may be assumed to be the same as the PUSCH transmit spatial filter scheduled by a random access response grant in a random access procedure initiated by a synchronized reconfiguration. It may be an uplink transmit spatial filter for transmission.

[0289] DLorJoint-TCIState may be used as the "indicated TCI state". For example, The device 1 may obtain a QCL assumption (QCL relation, QCL) for the DMRS of the PDSCH, the DMRS of the PDCCH, and the CSI-RS to which the "indicated TCI state" applies from the "configured TCI state." The "indicated TCI state" may be applied to the DMRS of the PDSCH, the DMRS of the PDCCH, and the CSI-RS. The "indicated TCI state" may apply to the DMRS of the PDSCH, the DMRS of the PDCCH, the CSI-RS, the PUSCH, the PUCCH, and the SRS.

[0290] UL-TCIState may be used as the "indicated TCI state." For example, the terminal device 1 For the PUSCH, PUCCH, and SRS to which the "indicated TCI state" applies, the uplink transmit spatial filter may be determined from the "set TCI state."

[0291] When the terminal device 1 transmits a 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 slot. The first OFDM symbol is the first slot of the PUCCH with HARQ-ACK information. The first OFDM symbol may be a PUSCH symbol with HARQ-ACK information. The HARQ-ACK information may be HARQ-ACK information corresponding to a DCI carrying a TCI state indication without a downlink assignment. The HARQ-ACK information may be HARQ-ACK information corresponding to a PDSCH scheduled by a DCI carrying a TCI state indication. The second indicated TCI status may be HARQ-ACK information corresponding to the first indicated TCI status. The first slot may be indicated before the TCI state. BeamAppTime may be set by a higher layer parameter. The BeamAppTime may be determined by the terminal capabilities. The second OFDM symbol is The indicated TCI state may be an indicated DLorJointTCIState or an indicated UL-TCIState.

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

[0293] One code point in the DCI field 'Transmission Configuration Indication' is , may contain two TCI states. One code point of the DCI field 'Transmission Configuration Indication' may contain two "TCI state pairs". The terminal device 1 may receive an activation command. The activation command may be used to map up to eight combinations of one or two TCI states to a code point of the DCI field 'Transmission Configuration Indication'. The activation command may be used to map up to eight combinations of one or two "TCI state pairs" to a code map of the DCI field 'Transmission Configuration Indication'. The terminal device 1 may not expect to receive more than eight TCI states in the activation command. The terminal device 1 may not expect to receive more than eight "TCI state pairs" in the activation command.

[0294] In Periodic CSI-RS and Semi-persistent CSI-RS, The indicated TCI state (eg, indicated DLorJointTCIState) may not apply.

[0295] The FDM (Frequency division multiplexing) scheme (fdmScheme) is used for PDSCH and PUSCH. FDM scheme A (fdmSchemeA) may be applied to either or both of the PDSCH and the PUSCH. FDM scheme B (fdmSchemeB) may be applied to either or both of the PDSCH and the PUSCH. A time division multiplexing (TDM) scheme (tdmScheme) may be applied to one or both of the PDSCH and the PUSCH. A time division multiplexing (TDM) scheme (tdmScheme) may be applied to one or both of the PDSCH and the PUSCH. TDM scheme A (tdmSchemeA) may be applied to one or both of the PDSCH and the PUSCH. TDM scheme B (tdmSchemeB) may be applied to one or both of the PDSCH and the PUSCH. fdmScheme may be a general term for fdmSchemeA and fdmSchemeB. tdmScheme may be a general term for tdmSchemeA and tdmSchemeB.

[0296] Terminal device 1 is set to 'fdmSchemeA' and two TCI states are specified by one DCI. When indicated, the terminal device 1 transmits one PDSCH for one transport block in each TCI state. Each TCI state may receive one PUSCH transmission opportunity or transmit one PUSCH transmission opportunity. 'fdmSchemeB' is set in terminal device 1. When two TCI states are indicated by one DCI, the terminal device 1 may receive two PDSCH transmission opportunities for the same transport block or transmit two PUSCH transmission opportunities in each TCI state. Each TCI state may be associated with a first PDSCH transmission opportunity of the two PDSCH transmission opportunities. The first PDSCH transmission opportunity may have a non-overlapping frequency domain resource allocation with respect to a second PDSCH transmission opportunity of the two PDSCH transmission opportunities. Each TCI state may be associated with a first PUSCH transmission opportunity of the two PUSCH transmission opportunities. The first PUSCH transmission opportunity may , for the second of the two PUSCH transmission opportunities, May have source allocation.

[0297] Terminal device 1 is set to 'tdmSchemeA' and two TCI states are specified by one DCI. When shown, the terminal device 1 may receive two PDSCH transmission opportunities or transmit two PUSCH transmission opportunities for the same transport block in each TCI state. The first PDSCH transmission opportunity may be associated with a first PDSCH transmission opportunity, the first PDSCH transmission opportunity having a non-overlapping time domain resource allocation with respect to a second PDSCH transmission opportunity of the two PDSCH transmission opportunities. The two PDSCH transmission opportunities may have a non-overlapping time domain resource allocation with respect to the second PUSCH transmission opportunity of the two PUSCH transmission opportunities. Both of the two PUSCH transmission opportunities may be within one slot. Each TCI state may be associated with a first PUSCH transmission opportunity of the two PUSCH transmission opportunities. The first PUSCH transmission opportunity may have a non-overlapping time domain resource allocation with respect to the second PUSCH transmission opportunity of the two PUSCH transmission opportunities. Both of the two PUSCH transmission opportunities may be within one slot.

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

[0299] A MAC protocol data unit (MAC PDU) may consist of one or more MAC subPDUs. Each MAC subPDU may consist of one MAC subheader. A subPDU may consist of one MAC subheader and one MAC SDU (Service Data Unit). Each MAC subPDU may consist of one MAC subheader and one MAC CE. Each MAC subPDU may consist of one MAC subheader and padding. The MAC SDUs may be of variable size. Each MAC subheader may correspond to one MAC SDU, one MAC CE, or padding. One MAC PDU may be one transport block.

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

[0301] 9 is a diagram showing an example of an activation command A according to an aspect of the present embodiment. A field of a serving cell ID indicates an identification of a serving cell to which the first MAC CE is applied. The BWP ID field may indicate the DL BWP to which the MAC CE applies as a codepoint in the 'bandwidth part indicator field' of the DCI. If the first MAC CE applies to a set of multiple serving cells, the BWP ID field may be ignored. i The "T" field may indicate the activation / deactivation status of the TCI state with TCI state ID i. i " field set to 1 may indicate that the TCI state with TCI state ID i is activated. i " field set to 1 may indicate that the TCI state with TCI state ID i is mapped to one code point in the 'Transmission Configuration Indication field' of the DCI. i " field set to 0 may indicate that the TCI state with TCI state ID i is deactivated. i " field set to 1 may indicate that the TCI state with TCI state ID i is not mapped to one code point in the 'Transmission Configuration Indication field' of the DCI. i may be a TCI state ID (or TCI-StateID). A TCI state may be accompanied by a TCI state ID. The maximum number of "activated TCI states" may be 8. The CORESET Pool ID field may indicate that the first mapping is specific to the CORESET ID (ControlResourceSetId) configured with the CORESET Pool ID (CORESET Pool Index). The first mapping is specific to the "activated TCI states" and the "T iSetting the CORESET Pool ID field to 1 may indicate that the first MAC CE applies to downlink transmissions scheduled by a CORESET with a CORESET Pool ID (CORESET Pool Index) of value 1. Setting the CORESET Pool ID field to 0 may indicate that the first MAC CE applies to downlink transmissions scheduled by a CORESET with a CORESET Pool ID (CORESET Pool Index) of value 0. If the CORESET Pool Index (coresetPoolIndex) is not set, the CORESET Pool ID field in the first MAC CE may be ignored.

[0302] The second MAC CE may be an activation command B. The second MAC CE may be a MAC CE for activation or deactivation of a TCI state for a PDSCH (UE-specific PDSCH). The second MAC subheader may identify a MAC CE for activation / deactivation of a TCI state for a PDSCH. 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 is a diagram showing an example of an activation command B according to one aspect of this embodiment. i " The field is the TCI state ID. i,2 It may also indicate whether there is an octet containing For example, “C i" field is set to 1, TCI State ID i,2 There may be an octet containing "C i If the " field is set to 0, the TCI state ID i,2 The octet containing the TCI Status ID may not be present. i,j The field may indicate a TCI state identified by a TCI State ID (TCI-StateId). i,j may represent the j-th TCI state indicated for the i-th codepoint of the DCI 'Transmission configuration indication' field. i,2 is "C i " may be optional based on the indication of the field. i may be the index of the codepoint in the DCI 'Transmission configuration indicating' field. j may 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 or deactivation of the unified TCI state. The third MAC subheader identifies the MAC CE for activation / deactivation of the unified TCI state. For example, the third MAC subheader may be accompanied by a third LCID (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 is a diagram showing an example of an activation command C according to an aspect of this embodiment. The DL BWP ID field may indicate one downlink BWP to which MAC CE is applied as one code point in the DCI 'bandwidth part indicator' field. The UL BWP ID field may indicate one uplink BWP to which MAC CE is applied as one code point in the DCI 'bandwidth part indicator' field. i The " field may indicate whether each TCI codepoint has multiple TCI states or one TCI state. For example, "P i If the " field is set to 1, the ith TCI codepoint may contain both DL and UL TCI states. For example, iIf the "D / U" field is set to 0, the i-th TCI code point may contain 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 for joint (both DL and UL) / DL or UL. For example, if the "D / U" field is set to 1, the TCI state ID in the same octet may be for DL / joint. For example, if the "D / U" field is set to 0, the TCI state ID in the same octet may be for UL. The "TCI state ID" field may indicate the TCI state identified by the TCI state ID (TCI-StateId). If the "D / U" field is set to 1, a 7-bit long "TCI state ID" may be used. If the "D / U" field is set to 0, the most significant bit of the "TCI state ID" may be used. The first 6 bits may be considered as reserved, and the remaining 6 bits may indicate the ID of the UL-TCIState (UL-TCIState-Id). The DL TCI state may be a TCI state that applies to some or all of the PDSCH, PDCCH, and CSI-RS. The UL TCI state may be a TCI state that applies to some or all of the PUSCH, PUCCH, and SRS. The Joint TCI state may be a TCI state that represents both the DL TCI state and the UL TCI state. DLorJointTCIState may be a DL TCI state or a Joint TCI state. The UL-TCIState may be a UL TCI state. The DL TCI state may be a TCI state for DL. The Joint TCI state may be a TCI state for both DL and UL. The UL TCI state may be a TCI state for UL. The TCI codepoint may be the codepoint of the DCI 'Transmission configuration indication' field. The "R" field in the MAC CE 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 command for activation or deactivation of the unified TCI state. For example, the fourth MAC CE may be a MAC CE for deactivation. The fifth MAC subheader may be a MAC CE for activation or deactivation of the unified TCI state (Enhanced unified TCI state). The fifth MAC CE may be a MAC CE for activation or deactivation of the unified TCI state. For example, the fifth MAC CE may be a MAC CE for activation or deactivation of the enhanced unified TCI state. The fourth MAC subheader may identify a MAC CE for activation / deactivation of the unified TCI state. The fifth MAC subheader may identify a MAC CE for activation / deactivation of the unified TCI state. 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] 12 is a diagram showing an example of an activation command D according to one aspect of this embodiment. The cell ID (Serving cell ID) field is the identifier of the serving cell to which the fourth MAC CE is applied. The DL BWP ID field may indicate one downlink BWP to which the fourth MAC CE is applied. The DL BWP ID field may indicate one downlink BWP to which the fourth MAC CE is applied. The link BWP is represented by one code point in the DCI 'bandwidth part indicator' field. The UL BWP ID field may indicate one uplink BWP to which the fourth MAC CE is applied. The UL BWP ID field may indicate one uplink BWP to which the fourth MAC CE is applied. The link BWP is represented as one code point in the DCI 'bandwidth part indicator' field. You can also give instructions by saying "P i The " field may indicate whether each TCI codepoint has multiple TCI states or one TCI state. For example, "P i "1 in the field If set, the ith TCI codepoint may contain both DL and UL TCI states. For example, "P i If the " field is set to 0, the i-th TCI code point "D / U" may include one of DL TCI state and UL TCI state. i The " field is It may also indicate whether the endpoint is for a joint (both DL and UL) / DL or UL. For example, "D / U i If the " field is set to 1, the i-th TCI codepoint may be for DL / joint. For example, "D / U i If the " field is set to 0, the i-th TCI codepoint may be for UL. jThe "T" field may indicate the activation / deactivation status of the TCI state with TCI state ID j. j " field set to 1 may indicate that the TCI state with TCI state ID j is activated. j " field set to 1 may indicate that the TCI state with TCI state ID j is mapped to one code point in the 'Transmission Configuration Indication field' of the DCI. j " field set to 0 may indicate that the TCI state with TCI state ID j is deactivated. j " field set to 1 may indicate that the TCI state with TCI state ID j is not mapped to one code point in the 'Transmission Configuration Indication field' of the DCI. j may be a UL TCI State ID (UL-TCIState-Id) or a DL / Joint TCI State ID (DLorJoint-TCIState-Id). The number of UL TCI State IDs may be up to 64. The number of DL / Joint TCI State IDs may be up to 128. j may be {0,...,63}. j may be {0,...,127. j may be {0,...,191}. For example, if the ith TCI code point corresponds to a UL TCI state, then "T j The " field may indicate the activation / deactivation status of the TCI state with TCI state ID j-128. For example, if the ith TCI codepoint corresponds to the DL TCI state or the Joint TCI state, then "T j The " field may indicate the activation / deactivation status of the TCI state with TCI state ID j-64. For example, if the ith TCI codepoint corresponds to the UL TCI state, then "Tj " field set to 1 may indicate that the TCI state with TCI state ID j-128 is activated. For example, if the i-th TCI codepoint corresponds to the UL TCI state, then "T j " field set to 1 may indicate that the TCI state with TCI state ID j-128 is mapped to the i-th TCI codepoint. For example, if the i-th TCI codepoint corresponds to the DL TCI state or the Joint TCI state, then "T j " field set to 1 may indicate that the TCI state with TCI state ID j-64 is activated. For example, if the i-th TCI codepoint corresponds to the DL TCI state or the Joint TCI state, then "T j The " field set to 1 may indicate that the TCI state with TCI state ID j-64 is mapped to the i-th TCI code point. The CORESET Pool ID field may indicate that the second mapping is specific to the CORESET ID (ControlResourceSetId) set with the CORESET Pool ID (CORESET Pool Index). The second mapping is specific to the "TCI state to be activated" and the "TCI state to be activated" field. iSetting the CORESET Pool ID field to 1 may indicate that MAC CE applies to downlink or uplink transmissions scheduled by a CORESET with a CORESET Pool ID (CORESET Pool Index) of value 1. Setting the CORESET Pool ID field to 0 may indicate that MAC CE applies to downlink or uplink transmissions scheduled by a CORESET with a CORESET Pool ID (CORESET Pool Index) of value 0. If CORESET Pool Index (coresetPoolIndex) is not set, the CORESET Pool ID field in the fourth MAC CE may be ignored.

[0308] FIG. 13 is a diagram showing an example of an activation command E according to one aspect of this embodiment. The CORESET pool ID field may be reserved. i,j "Feel The code may indicate whether each TCI codepoint has multiple TCI states or one TCI state. For example, "P i,j If the "field is set to 1, the i-th TCI code Even if the j-th TCI state at the end point is two (e.g., DL TCI state and UL TCI state), Good. For example, "P i,j If the " field is set to 0, the i-th TCI code point The j-th TCI state in may be one (e.g., DL TCI state or UL TCI state). "D / U j The " field may indicate whether the TCI state ID in the same octet is for joint (both DL and UL) / DL or UL. j" field may indicate whether the TCI state ID in the same octet is for joint (both DL and UL) / DL or UL. For example, "D / U j If the " field is set to 1, the TCI state ID in the same octet may be for DL / joint. For example, "D / U j If the "TCI state ID" field is set to 0, the TCI state ID in the same octet may be for UL. i,j The " field may indicate the TCI state identified by the DL / Joint TCI State ID (TCI-StateId) or the UL TCI State ID (UL-TCIState-Id). j If the " field is set to 1, the 7-bit "TCI state ID i,j " may be used. j If the "TCI state ID" field is set to 0, i,j The most significant bit of " may be considered as a reserve, and the remaining 6 bits may indicate the ID of the UL-TCIState (UL TCI State Id, UL-TCIState-Id).

[0309] In FIG. 13, j may correspond to a CORESET pool ID (CORESET pool index). For example, j=1 may correspond to CORESET pool ID (CORESET pool index)=0. For example, j=2 may correspond to CORESET pool ID (CORESET pool index)=1. For example, j=0 may correspond to CORESET pool ID (CORESET pool index)=0. , j=1 may correspond to 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, if the "J" field is set to 1, j may correspond to a CORESET pool ID (CORESET pool index). For example, if the "J" field is set to 0, j may correspond to an index of a TCI state in one codepoint. "P i,j The " field may indicate whether each TCI codepoint of the DCI associated with the CORESET Pool ID corresponding to j has multiple TCI states or one TCI state. For example, "P i,j If the " field is set to 1, it may correspond to both the DL TCI state and the UL TCI state of the ith TCI codepoint of the DCI associated with the CORESET Pool ID corresponding to j. For example, i,j If the " field is set to 0, it may correspond to either the DL TCI state or the UL TCI state of the i-th TCI codepoint of the DCI associated with the CORESET Pool ID corresponding to j. If the CORESET Pool Index (upper layer parameter coresetPoolIndex) is not set, j may not correspond to a CORESET Pool ID.

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

[0311] Uplink power control may determine the power (transmission power) for the PUSCH, PUCCH, SRS, and PRACH. The terminal device may include a transmission power control unit.

[0312] The terminal device 1 determines the PUSCH transmission power P PUSCH,b,f,c (i,j,qd , l). 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 PUSCH,b,f,c (i ,j,q d , l), where b is the active BWP among one or more BWPs, or , ... j may be 1 or multiple as configured by higher layer parameters. For example, the transmission power P of the PUSCH may be an index to identify one of the multiple parameter sets. PUSCH,b,f,c (i,j,q d ,l) to determine For this purpose, the parameter set identified by index j may be used. d is 1 or may be an index for identifying one reference signal among multiple reference signals. For example, the reference signal may be a physical signal used for channel measurement. For example, the reference signal may be an SS / PBCH block or a CSI-RS.

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

[0314] The power control state may be indicated by the DL / Joint TCI state or the UL TCI state. The power control state may be indicated by the "indicated TCI state."

[0315] The PUSCH, PUCCH, and SRS are in a first power control state (e.g., l=0) and a second power control state. It may correspond to one or both of the states (for example, l=1).

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

number

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

[0318] If j is 0, P PUSCH,b,f,c (i,j,q d , l) may be the transmit power for the PUSCH scheduled by the random access response grant. If j is 1, P PUSCH,b,f,c (i,j,q d , l) may be the transmit power for the PUSCH scheduled by the configured uplink grant. If j is greater than 1, P PUSCH,b ,f,c (i,j,q d , l) is the transmit power for the PUSCH scheduled by DCI If j is greater than 1, l may be indicated by the scheduling DCI.

[0319] P O_PUSCH,b,f,c (j) may be the target received power. P O_PUSCH,b,f,c (j) may be determined based on Equation 2. P O_PUSCH,b,f,c (j) is DL / Joint TCI state The power control state may be determined based at least on the UL TCI state. The corresponding P 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.

number

[0320] P O_NOMINAL_PUSCH,f,c (j) may be provided by a higher layer parameter. O _UE_PUSCH,b,f,c (j) may be provided by a higher layer parameter. O_UE_PUSCH,b,f,c (0) may be 0. P O_UE_PUSCH,b,f,c (j) is DL / Joint The power control may be determined based at least on the TCI state or the UL TCI state. P corresponding to the 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) is the number of resource blocks allocated for PUSCH. The transmission power of the PUSCH may be set to PUSCH RB,b,f,c (j) The P to be determined PUSCH,b,f,c (i,j,q d ,l).

[0322] α b,f,c (j) may be a scaling factor, e.g., α b,f,c (j) may be 1 or less. For example, α b,f,c (j) may be any of 0, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, and 1. b,f,c (j) may be provided by a higher layer parameter. b,f,c (j) is a TCI state (e.g., UL TCI state) The power control state may be determined based at least on α b,f,c (j) is based on the DL / Joint TCI state or UL TCI state corresponding to the one power control state. may be determined.

[0323] PL b,f,c (q d ) may be the propagation path loss. For example, PL b,f,c (q d ) is q d The propagation path loss may be a value estimated based on a reference signal specified by q. The propagation path loss may be a downlink propagation path loss. Also, the propagation path loss may be an uplink propagation path loss. d is determined based at least on the TCI condition (e.g., UL TCI condition). q corresponding to one power control state d may 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) is a transport format, Δ TF,b,f,c (i) may be a power variation based on the number of information bits per resource element. TF,b,f,c (i) may be determined based on Equation 3. For example, if the number of transmission layers is greater than 1, Δ TF,b,f,c (i) may be 0. For example, when DMRS bundling is applied, Δ TF,b,f,c (i) may be 0.

number

[0325] The BPRE may be the number of information bits in one resource element among one or more resource elements. For example, the BPRE may 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 obtained by dividing the transport block. For example, for a PUSCH used to transmit a transport block, the BPRE may be determined based on the size of the transport block and the number of resource elements for the PUSCH. The BPRE may be determined based on Equation 4. For example, when a PUSCH is used to transmit a transport block delivered by an UL-SCH, the BPRE may be determined based on Equation 4.

number

[0326] C may be the number of code blocks. r may be the size of the r-th code block, where the size of the r-th code block may be determined by the sum of the number of bits of the r-th code block and the number of bits of the CRC sequence added to the r-th code block. RE N may be the number of resource elements. RE may be determined based on Equation 5.

number

[0327] N PUSCH symb,b,f,c (i) may be the number of OFDM symbols, e.g., PUSCH transmission It may be the number of OFDM symbols in opportunity i. For example, In Equation 5, N may be 1. N may be provided by a higher layer parameter.

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

[0329] The BPRE may be determined based on Equation 6. For example, when the PUSCH carries uplink control information, When used for transmission, the BPRE may be determined based on Equation 6.

number

[0330] Q m may be a modulation order of the PUSCH, and R may be a maximum coding rate of the PUSCH (or simply referred to as a coding rate).

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

[0332] If the PUSCH is used to transmit the transport block delivered by the UL-SCH, β PUSCH offset may be 1. When the PUSCH is used to carry uplink control information, β PUSCH offset does not have to be 1. β PUSCHoffset 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) may be determined based on Equation 7. b,f,c (i,l) may be determined based on the TPC command field. may be included in the DCI. b,f,c (i,l) is the first upper layer parameter provided If not, the first upper layer parameter may be determined based on Equation 7. The first upper layer parameter may be the upper layer parameter tpc-Accumulation. The first upper layer parameter may 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 not be provided in the upper layer parameter ConfiguredGrantConfig. b,f,c (i,l) may be determined at PUSCH transmission opportunity i. b,f,c (i, l) may be determined based on Equation 8. b,f,c (i,l) may be determined based on Equation 8 when the first upper layer parameter is provided.

number

number

[0334] δ PUSCH,b,f,c (m,l), and δ PUSCH,b,f,c (i,l) is the value of the TPC command δ 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 the TPC-PUSCH-RNTI. The DCI may be a DCI corresponding to DCI format 2_3. For example, If the value of δ is 0, PUSCH,b,f,c (m,l) can be -1dB. dB is the decimal point. For example, if the value of the TPC command field is 1, then δ PUSCH,b,f,c (m,l) may be 0 dB. For example, if the value of the TPC command field is 2, then δ PUSCH,b,f,c (m,l) may be 1 dB. For example, the TPC command filter If the value of field is 3, δ PUSCH,b,f,c (m,l) may be 3 dB. For example, if the value of the TPC command field is 0, then δ PUSCH,b,f,c (i,l) is -4dB For example, if the value of the TPC command field is 1, then δ PUSCH,b,f,c (i,l) may be -1 dB. For example, if the value of the TPC command field is 2, If δ PUSCH,b,f,c (i,l) may be 1 dB. For example, the TPC command field If the value of δ is 3, PUSCH,b,f,c (i,l) may be 4 dB.

[0335] δ corresponding to one 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 (e.g., 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 (e.g., l=1) PUSCH,b,f,c (m,l ), and δ PUSCH,b,f,c (i,l) is 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, the upper layer parameter SecondTPCFieldDCI If the upper layer parameter SecondTPCFieldDCI is set, one DCI format may include both a first TPC command field and a second TPC command field. For example, if the upper layer parameter SecondTPCFieldDCI is set, the power control parameter set may correspond to one power control state. For example, if the upper layer parameter SecondTPCFieldDCI is not set, the power control parameter set may not correspond to one power control state. d , α b,f,c (j), P O_UE_PUSCH,b,f,c (j), and P O_PUSCH,b,f,c Some 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 DLorJoint-TCIState or the indicated UL-TCIState. For example, the power control parameter set may be provided by one or both of a first higher layer parameter and a second higher layer parameter related to the indicated DLorJoint-TCIState or the indicated UL-TCIState. The first higher layer parameter may be p0-Alpha-CLID-PUSCH-Set or ul-powerControl. The second higher layer parameter may be PL-RS or pathlossReferenceRS-Id.

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

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

[0338] DCI formats 1_0 / 1_1 / 1_2 may be used for scheduling PDSCH A BWP indication (Bandwidth part indicator) 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. A TPC command (TPC command for scheduled PUCCH) field may be included in one or both of DCI format 1_1 and DCI format 1_2. A second TPC command (Second TPC command for scheduled PUCCH) field may be included in one or both of DCI format 1_1 and DCI format 1_2. PUCCH) field is either DCI format 1_1 or DCI format 1_2 It may be included in both, for example, when the upper layer parameter SecondTPCFieldDCI is set. , a 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, when higher layer parameters are configured, the TCI (Transmission configuration indication) field is included in the DCI It may be included in either or both of Format 1_1 and DCI Format 1_2. For example, when the upper layer parameter tci-PresentInDCI is configured, a 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 be indicated by a TCI field in the DCI format.

[0340] DCI formats 0_0 / 0_1 / 0_2 may be used for scheduling PUSCH A BWP indication (Bandwidth part indicator) field may be included in some 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. A TPC command (TPC command for scheduled PUSCH) field may be included in one or both of DCI format 0_1 ​​and DCI format 0_2. A second TPC command (Second TPC command for scheduled PUSCH) field may be included in one or both of DCI format 0_1 ​​and DCI format 0_2. PUSCH) field is either DCI format 0_1 ​​or DCI format 0_2 It may be included in both, for example, when the upper layer parameter SecondTPCFieldDCI is set. , a second TPC command (Second TPC command for scheduled PUSCH) field may be included in DCI format 1_1.

[0341] The SRS resource indicator field is used in DCI format 0_1, and The SRS resource set 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. When the SRS resource set indicator field indicates 0 (“00”), the SRS resource indicator field and the precoding information and number of layers fields may be associated with a first SRS resource set. When the SRS resource set indicator field indicates 1 (“01”), the SRS resource indicator field and the precoding information and number of layers fields may be associated with a second SRS resource set. When the SRS resource set indicator field indicates 2 (“10”), the SRS resource indicator field and the precoding information and number of layers fields may be associated with the first SRS resource set. When the SRS resource set indicator field indicates 2 (“10”), the second SRS resource indicator field and the second “precoding information and number of layers field” (second precoding information field) may be associated with a second SRS resource set. If the SRS resource set indication field indicates 3 ("11"), the SRS resource indication field and the precoding information and number of layers field may be associated with a first SRS resource set. If the SRS resource set indication field indicates 3 ("11"), the second SRS resource indication field and the second "precoding information and number of layers field" may be associated with a second SRS resource set.

[0342] Multiple uplink channels / signals (e.g., PUSCH, PUCCH, SRS) and / or multiple downlink channels / signals (e.g., PDSCH, PDCCH, CSI-RS) may be in one TCI state. Beam management is possible by applying one TCI state to multiple channels / signals, which is expected to improve beam management efficiency. However, in the case of multiple transmission and reception points (Multiple-TRPs), applying one TCI state to multiple channels / signals makes it difficult to switch beams for each TRP. Therefore, it is necessary to apply one TCI state to multiple channels / signals and each TRP. This may enable efficient communication and efficient beam management. As a means for solving the problem, the present invention may be used for switching TCI states and activation commands.

[0343] FIG. 14 is a diagram illustrating an example of switching of the TCI state according to one aspect of the present embodiment. The terminal device 1 may receive a PDSCH 1400. The PDSCH 1400 may be transmitted to convey a transport block 1440. For example, the terminal device 1 may receive a PDSCH 1400 to convey the transport block 1440. The terminal device 1 may receive a PDSCH 1400 in which the DCI 1410 is arranged (mapped). The terminal device 1 may receive a PDCCH in which the DCI 1410 is arranged (mapped). The DCI 1410 is a downlink assignment N symb,1430 may be the number of OFDM symbols. symb,1430 may be set by higher layer parameters. symb,1430 may be determined by the terminal capability. The terminal device 1 may receive the DCI 1411. The terminal device 1 may receive the DCI 1411. The DCI 1411 may also be accompanied by an uplink grant. That is, the DCI 1411 may schedule the PUSCH 1420. The DCI 1411 may instruct the transmission of the PUSCH 1420. The terminal device 1 may transmit the PUSCH 1420. The DCI 1410 may be DCI format 1_1 or DCI format 1_2. The DCI 1411 may be any of DCI format 0_0, DCI format 0_1, and DCI format 0_2.

[0344] One or more TCI states may be configured by higher layer parameters. or multiple UL TCI states (UL-TCIState) are assigned to the higher level for each uplink BWP (BWP-UplinkDedicated). It may be configured by layer parameters, e.g., one or more DL / Joint TCI states (DLor The JointTCIState is configured by higher layer parameters for each PDSCH configuration (PDSCH-Config). One TCI state may be associated with one TCI state ID, e.g., one UL TCI state may be associated with one UL TCI State ID (TCI-UL-State-Id, UL-TCIState-Id). For example, one DL / Joint TCI state (TCI-state) may be associated with one TCI State ID (TCI-stateId). The TCI state configured by higher layer parameters may be referred to as the "configured TCI state."

[0345] The PDSCH 1400 may carry a transport block 1440. The transport block 1440 may be one MAC PDU. One MAC PDU may be an activation command or an activation 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 One or both of 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 by an activation command. Each TCI state or each TCI state pair may be mapped to one code point. For example, each TCI state or each TCI state pair may be mapped to one code point by an activation command. The code point to which a TCI state or a TCI state pair is mapped may be a code point in the TCI field. The code point to which a TCI state or a TCI state pair is mapped may be a code point in the TCI field in DCI format 1_1 or DCI format 1_2. The code point to which a TCI state or a TCI state pair is mapped may be a code point in the TCI field in DCI 1410. The TCI state pair may be a Joint TCI state. A TCI state activated by a MAC CE may be referred to as an "activated TCI state." The TCI state that is mapped to a code point in the TCI field may be referred to as an "activated TCI state."

[0346] If the CORESET pool index (coresetPoolIndex) is not configured in one or more CORESETs (ControlResourceSets), activation command E may be used. If the CORESET pool index (coresetPoolIndex) is configured in one or more CORESETs (ControlResourceSets), 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 multi-DCI mode, activation command D may be used. For example, in both single-DCI mode and multi-DCI mode, activation command E may be used.

[0347] The DCI 1410 may be DCI format 1_1 or DCI format 1_2. The DCI 1410 may include a Transmission Configuration Indication (TCI) field. The TCI field may indicate one or two TCI states (e.g., an UL TCI state, a DL TCI state, or a Joint TCI state). For example, the TCI field may indicate one or both of a TCI state 1450 and a TCI state 1451. The TCI state 1450 may be an UL TCI state, a DL TCI state, or a Joint TCI state (a pair of TCI states). The TCI state 1451 may be an UL TCI state, a DL TCI state, or a Joint TCI state (a pair of TCI states). The UL TCI state may be a TCI state for the PUSCH, the PUCCH, and the SRS. The DL TCI state may be a TCI state for the PDSCH, the PDCCH, and the CSI-RS. The Joint TCI state may be a TCI state for the PUSCH, PUCCH, SRS, PDSCH, PDCCH, and CSI-RS. For example, one value of the TCI field may correspond to one codepoint of the TCI field. The TCI state indicated by the DCI format may be referred to as an "indicated TCI state."

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

[0349] The DCI 1411 may schedule the PUSCH 1420. The TCI state 1450 is the UL TCI state, or The 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 apply to PUSCH 1420.

[0350] DCI1411 is the first instruction, the second instruction, the third instruction, and part of the fourth instruction or The DCI 1411 may perform all of the following: the first instruction, the second instruction, the third instruction, and the fourth instruction. For example, one field in DCI 1411 may be any of a first instruction, a second instruction, a third instruction, and a fourth instruction. A field in the The DCI 1411 may give any one of a first indication, a second indication, a third indication, and a fourth indication to the PUSCH scheduled by the DCI 1411. The DCI 1411 may give any one of a first indication, a second indication, a third indication, and a fourth indication to the PUSCH scheduled by the DCI 1411 at least N symbols later than the last OFDM symbol of the PDCCH to which the DCI 1411 is mapped. symb,1431 Any of the first indication, the second indication, the third indication, and the fourth indication may be given for the PUSCH transmitted after the symbol.

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

[0352] The first indication may be that a first power control state is to be applied to the PUSCH 1420. The second indication may be that a second power control state is to be applied to the PUSCH 1420. The third and fourth instructions may be that a first power control state and a second power control state are applied (corresponding) to the PUSCH 1420. The first power control state may be l=0. The second power control state may be l=1. The first instruction may be that a first transmit power is applied to the PUSCH 1420. The second instruction may be that a second transmit power is applied to the PUSCH 1420. The third and fourth instructions may be that a first transmit power and a second transmit power are applied to the PUSCH 1420. 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] The DCI 1411 may include a TRP indication field. The TRP indication field includes a first indication: A second instruction, a third instruction, or a fourth instruction may be given. For example, TRP When the indication field indicates 0 (“00”), a first indication may be executed. For example, when the TRP indication field indicates 1 (“01”), a second indication may be executed. For example, when the TRP indication field indicates 2 (“10”), a third indication may be executed. For example, when the TRP indication field indicates 3 (“11”), a fourth indication may be executed. For example, when the TRP indication field indicates 0 (“00”), a first indication may be given. For example, when the TRP indication field indicates 1 (“01”), a second indication may be given. For example, when the TRP indication field indicates 2 (“10”), a third indication may be given. For example, when the TRP indication field indicates 3 (“11”), a fourth indication may be given. The TRP indication field may be a field different from the SRS resource set indication field. When an upper layer parameter is configured, the number of information bits constituting the TRP indication field may be 2. When an upper layer parameter is not configured, the number of information bits constituting the TRP indication field may 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 some or all of DCI format 0_0, DCI format 0_1, and DCI format 0_2. The DL scheduling DCI format may be some or all of DCI format 1_0, DCI format 1_1, and DCI format 1_2.

[0354] The DCI 1411 may include an SRS resource set indication field. The SRS resource set indication field may provide any of a first indication, a second indication, a third indication, and a fourth indication. For example, if the SRS resource set indication field indicates 0 ("00"), the first indication may be executed. For example, if the SRS resource set indication field indicates 1 ("01"), the second indication may be executed. For example, if the SRS resource set indication field indicates 1 ("01"), the second indication may be executed. indicates 2 (“10”), the third instruction may be executed. For example, when the SRS resource set indication field indicates 3 (“11”), the fourth instruction may be executed. For example, when the SRS resource set indication field is 0 (“00”), the first instruction may be given. For example, when the SRS resource set indication field is 1 (“01”), the second instruction may be given. For example, when the SRS resource set indication field is 2 (“10”), the third instruction may be given. For example, when the SRS resource set indication field is 3 (“11”), the fourth instruction may be given. When the upper layer parameter is configured, the number of information bits constituting the SRS resource set indication field may be 2. When the upper layer parameter is not configured, the number of information bits constituting the SRS resource set indication field may be 0.

[0355] DCI1411 is the SRS resource indicator field and the second SRS resource The SRS field may include one or both of the following fields: First SRS resource indicator field, Second SRS resource indicator field, and Second SRS resource indicator field. For example, if the SRS resource indication field is included and the second SRS resource indication field is not included, the first indication may be executed. If the second SRS resource indication field is not included and the second SRS resource indication field is included, may be implemented. For example, if the SRS resource indication field is included, and If the second SRS resource indication field is included, the third indication, or the fourth indication It may be executed.

[0356] The terminal device 1 may transmit a PUSCH 1420. The PUSCH 1420 may be transmitted in two PUSCH transmission opportunities (a first transmission opportunity and a second transmission opportunity). For example, when a TDM method (TFM method A) is applied, the PUSCH 1420 may be transmitted in two PUSCH transmission opportunities (a first transmission opportunity and a second transmission opportunity). The first and second transmission opportunities may not overlap in the time domain and may be in the same slot. The PUSCH 1420 may be transmitted between the first and second transmission opportunities. If a first indication is given, the first transmission opportunity may be associated with TCI 1450, and the second transmission opportunity may be associated with TCI 1450. If a second indication is given, the first transmission opportunity may be associated with TCI 1451. If a third indication is given, the first transmission opportunity may be associated with TCI 1451. The transmit opportunity may be associated with TCI 1450 and the second transmit opportunity may be associated with TCI 1451. If a fourth indication is given, the first transmit opportunity may be associated with TCI 1451 and the second transmit opportunity may be associated with TCI 1452. may be associated with the TCI 1450.

[0357] PUSCH 1420 is transmitted in two PUSCH transmission opportunities (first and second transmission opportunities). For example, when the FDM method (FDM method A, FDM method B) is applied, the PUSCH 1420 may The PUSCH may be transmitted in two PUSCH transmission opportunities (first transmission opportunity and second transmission opportunity). The first and second transmission opportunities may not overlap in the frequency domain. A corresponding transport block is transmitted at the first and second transmission opportunities. The PUSCH 1420 may use the same transport channel in the first and second transmission opportunities. The RV (Redundancy Version) for the first transmission opportunity may correspond to a port block. The RV (Redundancy Version) for the first transmission opportunity may be different from the RV for the second transmission opportunity. If a first instruction is given, the first transmission opportunity may be associated with TCI 1450, and the second transmission opportunity may be associated with TCI 1450. If a second instruction is given, the first transmission opportunity may be associated with TCI 1451, and the second transmission opportunity may be associated with TCI 1451. If a third instruction is given, the first transmission opportunity may be associated with TCI 1450, and the second transmission opportunity may be associated with TCI 1451. If a fourth instruction is given, the first transmission opportunity may be associated with TCI 1451, and the second transmission opportunity may be associated with TCI 1450.

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

[0359] If a first instruction is given, TCI state 1450 may be associated with K consecutive slots. If a second instruction is given, TCI state 1451 may be associated with K consecutive slots. If a third instruction is given, TCI state 1450 and TCI state 1451 may be associated with K consecutive slots. For example, if K=2, TCI state 1450 applies to the first slot, and TCI state 1451 applies to the second slot. may apply to the second slot. If K>2 and cyclic mapping is enabled, TCI state 1450 and TCI state 1451 may apply to the first and second slots of K consecutive slots, respectively, and the same TCI state mapping pattern may continue for the remaining slots of the consecutive K slots. If K>2 and sequential mapping is enabled, TCI state 1450 may apply to the first and second slots of K consecutive slots, and TCI state 1451 may apply to the third and fourth slots of K consecutive slots, and the same TCI state mapping pattern may continue for the remaining slots of the consecutive K slots. If a fourth indication is given, TCI state 1450 and TCI state 1451 may relate to K consecutive slots. For example, if K=2, TCI state 1451 may apply to the first slot, and TCI state 1450 may apply to the second slot. If K>2 and cyclic mapping is enabled, TCI state 1451 and TCI state 1450 may apply to the first and second slots of K consecutive slots, respectively, and the same TCI state mapping pattern may continue for the remaining slots of the consecutive K slots. If K>2 and sequential mapping is enabled, TCI state 1451 may apply to the first and second slots of K consecutive slots, and TCI state 1450 may apply to the third and fourth slots of K consecutive slots, and the same TCI state mapping pattern may continue for the remaining slots of the consecutive K slots.

[0360] The transmit power of the PUSCH 1420 is determined based on at least one or two power control states. For example, the transmission power of the PUSCH 1420 may be adjusted in accordance with the first power control state and the second power control state. For example, if the first instruction is given, the transmission of PUSCH 1420 is The transmit power of the PUSCH 1420 may correspond to the first power control state. If the second instruction is given, the transmit power of the PUSCH 1420 may correspond to the second power control state. If the third instruction or the fourth instruction is given, the transmit power of the PUSCH 1420 may correspond to both the first power control state and the second power control state.

[0361] The PUSCH 1420 may be associated with one or both of a first timing advance (TA) and a second timing advance (TA). For example, if a first indication is given, the PUSCH 1420 may be associated with a first TA. If a second instruction is given, the PUSCH 1420 may be associated with a second TA. Alternatively, if a fourth instruction is given, the PUSCH 1420 may be associated with both the first TA and the second TA. You may do so.

[0362] The receiving unit in the terminal device 1 may receive the first PDCCH in which the DCI 1410 is arranged. The receiving unit in the terminal device 1 is a second receiving unit in which a DCI 1411 that schedules a PUSCH 1420 is arranged. The terminal device 1 may receive a PDCCH of the PUSCH 1420. The transmitter in the terminal device 1 may transmit a PUSCH 1420. The DCI 1410 may indicate both a TCI state 1450 and a TCI state 1451. Both the TCI state 1450 and the TCI state 1451 may be TCI states for an uplink channel / signal including at least the PUSCH 1420. The uplink channel / signal may be some or all of the PUSCH, the PUCCH, and the SRS. The DCI 1411 may provide any of a first indication, a second indication, a third indication, and a fourth indication. When the DCI 1411 provides the first indication, the PUSCH 1420 may be associated with the TCI state 1450. When the DCI 1411 provides the second indication, the PUSCH 1420 may be associated with the TCI state 1451. If DCI 1411 provides a third or fourth indication, PUSCH 1420 may be associated with both TCI state 1450 and TCI state 1451 .

[0363] The transmission power control unit in the terminal device may determine one or both of the first transmission power and the second transmission power. The first transmission 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). If the DCI 1411 provides a first instruction, the PUSCH 1420 may correspond to the first transmit power. If the DCI 1411 provides a second instruction, the PUSCH 1420 may correspond to the second transmit power. If the DCI 1411 provides a third or fourth instruction, the PUSCH 1420 may correspond to both the first transmit power and the second transmit power. That's fine.

[0364] DCI1411 provides the first instruction, which is the SRS resource set instruction field in DCI1411. The second instruction by DCI 1411 may be that the SRS resource set indication field in DCI 1411 indicates "00". The third instruction by DCI 1411 may be that the SRS resource set indication field in DCI 1411 indicates "10". The fourth instruction by DCI 1411 may be that the SRS resource set indication field in DCI 1411 indicates "11".

[0365] DCI 1411 gives the first instruction when the TRP instruction field in DCI 1411 is set to "00". The DCI 1411 giving the second instruction may be that the TRP instruction field in the DCI 1411 indicates "01". The DCI 1411 giving the third instruction may be that the TRP instruction field in the DCI 1411 indicates "10". The DCI 1411 giving the fourth instruction may be that the TRP instruction field in the DCI 1411 indicates "11".

[0366] Various aspects of the device according to one aspect of this embodiment will be described below.

[0367] (1) In order to achieve the above object, the aspects of the present invention provide the following means: That is, a first aspect of the present invention is a terminal device, comprising: a receiving unit for receiving a first PDCCH in which a first DCI is arranged and a second PDCCH in which a second DCI for scheduling a PUSCH is arranged; and a transmitting unit that transmits the PUSCH, wherein the first DCI indicates both a first TCI state and a second TCI state, both of which are TCI states for at least an uplink channel / signal, and the second DCI provides one of a first indication, a second indication, and a third indication, and when the second DCI provides the first indication, the PUSCH is associated with the first TCI state, when the second DCI provides the second indication, the PUSCH is associated with the second TCI state, and when the second DCI provides the third indication, the PUSCH is associated with both the first TCI state and the second TCI state. The mobile station also includes a transmission power control unit that determines one or both of a first transmission power and a second transmission power, wherein 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 provides the first instruction, the PUSCH corresponds to the first transmission power, when the second DCI provides the second instruction, the PUSCH corresponds to the second transmission power, and when the second DCI provides the third instruction, the PUSCH corresponds to both the first transmission power and the second transmission power. Furthermore, the second DCI providing the first instruction may be that the SRS resource set indication field in the second DCI indicates "00", the second DCI providing the second instruction may be that the SRS resource set indication field indicates "01", and the second DCI providing the third instruction may be that the SRS resource set indication field indicates "10". Furthermore, the second DCI providing the first instruction may be that the TRP indication field in the second DCI indicates "00", the second DCI providing the second instruction may be that the TRP indication field indicates "01", and the second DCI providing the third instruction may be that the TRP indication field indicates "10".

[0368] (2) A second aspect of the present invention is a base station device comprising: a transmitter that transmits a first PDCCH in which a first DCI is arranged; a second PDCCH in which a second DCI for scheduling a PUSCH is arranged; and a receiver that receives the PUSCH, wherein the first DCI indicates both a first TCI state and a second TCI state, and both the first TCI state and the second TCI state are TCI states for at least an uplink channel / signal; the second DCI provides one of a first indication, a second indication, and a third indication; when the second DCI provides the first indication, the PUSCH is associated with the first TCI state; when the second DCI provides the second indication, the PUSCH is associated with the second TCI state; and when the second DCI provides the third indication, the PUSCH is associated with both the first TCI state and the second TCI state. The mobile station also includes a transmission power control unit that determines one or both of a first transmission power and a second transmission power, wherein 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 provides the first instruction, the PUSCH corresponds to the first transmission power, when the second DCI provides the second instruction, the PUSCH corresponds to the second transmission power, and when the second DCI provides the third instruction, the PUSCH corresponds to both the first transmission power and the second transmission power. Furthermore, the second DCI giving the first instruction may be such that the SRS resource set indication field in the second DCI indicates "00", the second DCI giving the second instruction may be such that the SRS resource set indication field in the second DCI indicates "01", and the second DCI giving the third instruction may be such that the SRS resource set indication field in the second DCI indicates "10".Furthermore, the second DCI giving the first instruction may be such that the TRP indication field in the second DCI indicates "00", the second DCI giving the second instruction may be such that the TRP indication field indicates "01", and the second DCI giving the third instruction may be such that the TRP indication field indicates "10".

[0369] The programs that run on the base station device 3 and terminal device 1 according to the present invention may be programs that control a CPU (Central Processing Unit) or the like (programs that make a computer function) so as to realize the functions of the above-described embodiments according to the present invention. Information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing. The data is then stored in various ROMs such as Flash ROM (Read Only Memory) or HDD (Hard Disk Drive), and is read, modified, and written by the CPU as needed.

[0370] Note that the terminal device 1 and part of the base station device 3 in the above-described embodiment may be realized by a computer. In this case, a program for realizing this control function may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read into a computer system and executed to realize the function.

[0371] The term "computer system" used here refers to a computer system built into the terminal device 1 or base station device 3, and includes hardware such as an OS and peripheral devices. Also, the term "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, as well as storage devices such as hard disks built into the computer system.

[0372] Furthermore, the term "computer-readable recording medium" may include a medium that dynamically stores a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, or a medium that stores a program for a fixed period of time, such as volatile memory within a computer system that serves as a server or client in such a case. The program may also be one that realizes part of the above-mentioned functions, or one that can realize the above-mentioned functions in combination with a program already stored in the computer system.

[0373] Furthermore, the base station device 3 in the above-described embodiment can also be realized as a collection (device group) consisting of multiple devices. Each of the devices constituting the device group may have some or all of the functions or functional blocks of the base station device 3 according to the above-described embodiment. It is sufficient for the device group to have all of the functions or functional blocks of the base station device 3. Furthermore, the terminal device 1 according to the above-described embodiment can also communicate with the base station device as a collection.

[0374] Furthermore, the base station device 3 in the above-described embodiments may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or an NG-RAN (NextGen RAN, NR RAN). Furthermore, the base station device 3 in the above-described embodiments may have some or all of the functions of an upper node for an eNodeB and / or a gNB.

[0375] Furthermore, some or all of the terminal device 1 and base station device 3 in the above-described embodiments may be realized as an LSI, which is typically an integrated circuit, or may be realized as a chipset. Each functional block of the terminal device 1 and the base station device 3 may be individually integrated into a chip, or part or all of them may be integrated into a chip. The integrated circuit method is not limited to LSI, but may be a dedicated circuit, Alternatively, it may be realized by a general-purpose processor. In addition, with the advancement of semiconductor technology, it is expected that LSI will replace the general-purpose processor. When integrated circuit technology emerges, it is also possible to use integrated circuits based on that technology.

[0376] Furthermore, in the above-described 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 terminal devices or communication devices such as stationary or non-movable electronic devices installed indoors or outdoors, for example, AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other household appliances.

[0377] Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes within the scope of the present invention are also included. Furthermore, the present invention can be modified in various ways within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the present invention. The present invention also includes configurations in which elements described in the above embodiments are substituted with elements that provide similar effects. [Explanation of symbols]

[0378] 1(1A, 1B, 1C) Terminal equipment 3 Base station equipment 10, 30 Radio transmitter / receiver 10a, 30a Radio transmitter 10b, 30b Wireless receiver 11, 31 Antenna section 12, 32 RF section 13, 33 Baseband section 14, 34 Upper layer processing unit 15, 35 Medium access control layer processing unit 16, 36 Radio resource control layer processing unit 91, 92, 93, 94 Search area set 300 Component Carriers 301 Primary Cell 302, 303 Secondary Cell 700 Set of resource elements for PSS 710, 711, 712, 713 Set of resource elements for PBCH and DMRS for PBCH 720 Set of Resource Elements for SSS 3000 points 3001, 3002 Resource Grid 3003, 3004 BWP 3011, 3012, 3013, 3014 offset 3100, 3200 common resource block set 1400 PDSCH 1410, 1411 DCI 1420 PUSCH 1430, 1431 OFDM symbol count 1440 Transport Block 1450, 1451 TCI condition

Claims

1. a receiving unit that receives a first PDCCH in which a first DCI is arranged and a second PDCCH in which a second DCI for scheduling a PUSCH is arranged; a transmission unit that transmits 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 at least TCI states that the issue the second DCI provides one of a first instruction, a second instruction, and a third instruction; If the second DCI provides the first indication, the PUSCH is associated with the first TCI state. death, If the second DCI provides the second indication, the PUSCH is associated with the second TCI state. death, If the second DCI provides the third indication, the PUSCH is in the first TCI state and the Related to both the second TCI condition Terminal device.

2. a transmission power control unit that determines 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; If the second DCI provides the first indication, the PUSCH corresponds to the first transmission power; If the second DCI provides the second instruction, the PUSCH corresponds to the second transmission power; When the second DCI provides the third instruction, the PUSCH corresponds to both the first transmission power and the second transmission power. The terminal device according to claim 1 .

3. The second DCI giving the first instruction indicates that the SRS resource in the second DCI is The set instruction field indicates "00", The second DCI providing the second instruction is that the SRS resource set instruction field indicates "01", and The second DCI indicates the third instruction by indicating that the SRS resource set instruction field is “10.” 3. The terminal device according to claim 1 or 2.

4. The second DCI providing the first indication is a TRP indication field in the second DCI. The code indicates "00", The second DCI indicates the second instruction by indicating that the TRP instruction field is "01"; The second DCI indicates the third indication by indicating that the TRP indication field is "10".

3. The terminal device according to claim 1 or 2.

5. a transmitter that transmits a first PDCCH in which a first DCI is arranged and a second PDCCH in which a second DCI for scheduling a PUSCH is arranged; a receiving unit that 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 at least TCI states that the issue the second DCI provides one of a first instruction, a second instruction, and a third instruction; If the second DCI provides the first indication, the PUSCH is associated with the first TCI state. death, If the second DCI provides the second indication, the PUSCH is associated with the second TCI state. death, If the second DCI provides the third indication, the PUSCH is in the first TCI state and the Related to both the second TCI condition Base station equipment.

6. determining one or both of a first transmit power and a second transmit 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; If the second DCI provides the first indication, the PUSCH corresponds to the first transmission power; If the second DCI provides the second instruction, the PUSCH corresponds to the second transmission power; When the second DCI provides the third instruction, the PUSCH corresponds to both the first transmission power and the second transmission power. The base station device according to claim 5 .

7. The second DCI giving the first instruction indicates that the SRS resource in the second DCI is The set instruction field indicates "00", The second DCI providing the second instruction is that the SRS resource set instruction field indicates "01", and The second DCI indicates the third instruction by indicating that the SRS resource set instruction field is “10.” 7. The base station device according to claim 5 or 6.

8. The second DCI providing the first indication is a TRP indication field in the second DCI. The code indicates "00", The second DCI indicates the second instruction by indicating that the TRP instruction field is "01"; The second DCI indicates the third indication by indicating that the TRP indication field is "10".

7. The base station device according to claim 5 or 6.

9. Used in terminal devices, receiving a first PDCCH in which a first DCI is arranged and a second PDCCH in which a second DCI for scheduling a PUSCH is arranged; 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 at least TCI states that the issue the second DCI provides one of a first instruction, a second instruction, and a third instruction; If the second DCI provides the first indication, the PUSCH is associated with the first TCI state. death, If the second DCI provides the second indication, the PUSCH is associated with the second TCI state. death, If the second DCI provides the third indication, the PUSCH is in the first TCI state and the Related to both the second TCI condition Communication method.

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