Terminal equipment, base station equipment, and communication method

Abstract

To provide terminal equipment, communication methods, and base station equipment that enable efficient communication. [Solution] In a wireless communication system, a terminal device receives a first parameter for setting up multiple SRS resource sets, a second parameter indicating that PUSCH will be transmitted based on the multiple SRS resource sets, and a third parameter indicating the maximum number of PTRS ports, and receives downlink control information (DCI) carried on a downlink control channel (PDCCH). Here, DCI indicates some or all of the multiple SRS resource sets. If DCI indicates all of the multiple SRS resource sets, the PTRS ports for the phase tracking reference signal (PTRS) are determined based on the third parameter and DCI.

Description

[Technical Field]

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

[0002] The cellular mobile communication radio access method and radio network (hereinafter also referred to as "Long Term Evolution (LTE)" or "EUTRA: Evolved Universal Terrestrial Radio Access") is part of the Third Generation Partnership Project (3GPP:3 rd This is being considered in the Generation Partnership Project. In LTE, base station equipment is also called eNodeB (evolved NodeB), and terminal equipment is also called UE (User Equipment). LTE is a cellular communication system in which multiple base station devices are arranged in a cell-like structure to cover different areas. A single base station device may manage multiple serving cells.

[0003] 3GPP is considering a next-generation standard (NR: New Radio) to propose to the International Mobile Telecommunication Union (ITU) for next-generation mobile communication systems, IMT-2020 (Non-Patent Literature 1). NR is a single technological framework that utilizes eMBB (enhanced Mobile Broadband) It is required to meet the requirements for three scenarios: ), mMTC (massive machine type communication), and URLLC (ultra-reliable and low-latency communication). .

[0004] 3GPP is considering expanding the 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 [Non-Patent Document 3] “Release 18 package summary”, RP-213469, RAN chairman, RAN1 chairman, RAN2 chairman, RAN3 chairman, 3GPP TSG RAN Meeting #94-e, 6th ― 17th December, 2021 [Overview of the project] [Problems that the invention aims to solve]

[0006] The present invention provides a terminal device for efficient communication, a communication method used in the terminal device, a base station device for 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: an upper layer processing unit that receives information including a first parameter, information including a second parameter, and information including a third parameter; a receiving unit that receives downlink control information (DCI) carried on a downlink control channel (PDCCH); a PUSCH scheduled by the DCI; and a transmitting unit that transmits a phase tracking reference signal (PTRS), wherein the first parameter comprises a plurality of SRS resource sets The first parameter is a parameter for setting the multiple SRS resources. This parameter indicates that the PUSCH will be transmitted based on the previous third phase. The parameter is a parameter indicating a first maximum number of PTRS ports, the DCI indicates some or all of the multiple SRS resource sets, and if the DCI indicates all of the multiple SRS resource sets, the PTRS ports for the PTRS are determined based on the third parameter and the DCI.

[0008] (2) The upper layer processing unit receives information including a fourth parameter, the fourth parameter being a parameter indicating the second maximum number of PTRS ports, and if the DCI indicates a portion of the plurality of SRS resource sets, the unit determines the PTRS ports for the PTRS based on the fourth parameter and the DCI.

[0009] (3) Furthermore, the second parameter indicates that STxMP is applied for the PUSCH.

[0010] (4) Furthermore, the first maximum number of PTRS ports and the second maximum number of PTRS ports may be the same or different.

[0011] (5) A second aspect of the present invention is a base station device comprising: an upper layer processing unit that transmits information including a first parameter, information including a second parameter, and information including a third parameter; a transmitting unit that transmits downlink control information (DCI) carried on a downlink control channel (PDCCH); a PUSCH scheduled by the DCI; and a receiving unit that receives a phase tracking reference signal (PTRS), wherein the first parameter is a plurality of SRS resources The first parameter is a parameter for setting the set, and the second parameter is the plurality of SRS This parameter indicates that the PUSCH will be sent based on the source set, The third parameter is a parameter indicating the first maximum number of PTRS ports, and the DCI is the previous This refers to some or all of the SRS resource sets among multiple SRS resource sets, and the DCI If it indicates all of the aforementioned SRS resource sets, then it is understood that the PTRS port for the PTRS is determined based on the third parameter and the DCI.

[0012] (6) The upper layer processing unit further transmits information including a fourth parameter, the fourth parameter being a parameter indicating the second maximum number of PTRS ports, and understanding that if the DCI indicates a portion of the multiple SRS resource sets, the PTRS ports for the PTRS are determined based on the fourth parameter and the DCI.

[0013] (7) Furthermore, the second parameter indicates that STxMP is applied for the PUSCH.

[0014] (8) Furthermore, the first maximum number of PTRS ports and the second maximum number of PTRS ports may be the same or different.

[0015] (9) A third aspect of the present invention is a communication method used in a terminal device, comprising the steps of receiving information including a first parameter, information including a second parameter, information including a third parameter, and information including a fourth parameter; receiving downlink control information (DCI) carried on a downlink control channel (PDCCH); and scheduling by the DCI. Steps include sending a Joule-generated PUSCH and a Phase Tracking Reference Signal (PTRS), The first parameter is a parameter for configuring multiple SRS resource sets. The second parameter is a parameter indicating that the PUSCH is transmitted based on the plurality of SRS resource sets, the third parameter is a parameter indicating the first maximum number of PTRS ports, the DCI indicates some or all of the SRS resource sets among the plurality of SRS resource sets, and the DCI is of the plurality of SRS resource sets If all are shown, the PTRS port for the PTRS is based on the third parameter and the DCI. The parameters are determined, and the fourth parameter is a parameter indicating the second maximum number of PTRS ports, and if the DCI indicates a portion of the multiple SRS resource sets, the PTRS ports for the PTRS are determined based on the fourth parameter and the DCI. [Effects of the Invention]

[0016] According to this invention, terminal devices can communicate efficiently. Furthermore, base station devices can communicate efficiently. [Brief explanation of the drawing]

[0017] [Figure 1] This is a conceptual diagram of a wireless communication system according to one aspect of this embodiment. [Figure 2]This is an example showing the relationship between the subcarrier spacing setting μ, the number of OFDM symbols per slot Nslot symb, and the CP (cyclic prefix) setting according to one aspect of this embodiment. [Figure 3] This figure shows an example of a method for configuring a resource grid according to one aspect of this embodiment. [Figure 4] This figure shows an example configuration of a resource grid 3001 according to one aspect of this embodiment. [Figure 5] This is a schematic block diagram showing an example of the configuration of a base station device 3 according to one aspect of this embodiment. [Figure 6] This is a schematic block diagram showing an example of the configuration of a terminal device 1 according to one aspect of this embodiment. [Figure 7] This figure shows an example of the configuration of an SS / PBCH block according to one aspect of this embodiment. [Figure 8] This figure shows an example of a method for applying precoding according to one aspect of this embodiment. [Figure 9] This figure shows an example of an antenna layout for a terminal according to one aspect of this embodiment. [Modes for carrying out the invention]

[0018] Embodiments of the present invention will be described below.

[0019] floor(C) may also be a floor function for a real number C. For example, floor(C) may be a function that outputs the largest integer within the range not exceeding the real number C. ceil(D) may also be a ceiling function for a real number D. For example, ceil(D) may be a function that outputs the smallest integer within the range not falling below the real number D. mod(E,F) is a function that outputs the remainder when E is divided by F. That's fine. mod(E,F) is a function that outputs the value corresponding to the remainder when E is divided by F. This is also acceptable. exp(G) = e^G, where e is Napier's number. H^I represents H to the power of I. 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 either 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 either L or M. round(N) is a function that outputs the integer value closest to N. "·" represents multiplication.

[0020] In a wireless communication system according to one aspect of this embodiment, at least OFDM (Orthogonal Frequency Division Multiplex) is used. OFDM symbols are units in the time domain of OFDM. OFDM symbols include at least one or more subcarriers. OFDM symbols are converted to time-continuous signals in baseband signal generation. At least CP-OFDM (Cyclic Prefix - Orthogonal Frequency Division Multiplex) is used on the downlink. CP-OFDM, and Either DFT-s-OFDM (Discrete Fourier Transform - spread - Orthogonal Frequency Division Multiplex) is used. DFT-s-OFDM is a modified precocious process compared to CP-OFDM. This may be given by applying transform precoding.

[0021] An OFDM symbol may be a designation that includes a CP (Character Protection) attached to the OFDM symbol. In other words, an OFDM symbol may consist of the OFDM symbol itself and a CP attached to it.

[0022] Figure 1 is a conceptual diagram of a wireless communication system according to one embodiment of this model. In Figure 1, the wireless communication system comprises at least terminal devices 1A to 1C and a base station device 3 (BS#3: Base station#3). Hereinafter, terminal devices 1A to 1C will also be referred to as terminal device 1 (UE#1: User Equipment#1).

[0023] The base station device 3 may consist of one or more transmitting devices (or a transmitting point, a transceiver, a transceiver). If the base station device 3 consists of multiple transmitting devices, each of the multiple transmitting devices may be located in a different position. For example, the base station device 3 may consist of It may consist of a transmitting device 3a and a transmitting device 3b. For example, the base station device 3 may consist of a transmitting / receiving point 3a and It may consist of a transmitting / receiving point 3b. For example, the base station device 3 may consist of a transmitting / receiving device 3a and a transmitting / receiving device 3b It may consist of these elements.

[0024] The base station device 3 may provide one or more serving cells. A serving cell may be defined as a set of resources used for wireless communication. A serving cell is also referred to as a cell.

[0025] A serving cell may consist of one or both of one downlink component carrier (downlink carrier) and one uplink component carrier (uplink carrier). A serving cell may consist of 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).

[0026] For example, one resource grid may be provided for each component carrier. Also, one resource grid may be provided for each set of one component carrier and a subcarrier spacing configuration μ. Here, 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.

[0027] The resource grid contains N size,μ grid,x N RB sc subcarriers. Here, the reso -urce grid starts from the common resource block N start,μ grid,x . Also, the common resource block N start,μ grid,x is also referred to as the reference point of the resource grid.

[0028] The resource grid contains N subframe,μ symb OFDM symbols.

[0029] The subscript x added to the parameters related to the resource grid indicates the transmission direction. For example, the subscript x may be used to indicate either the downlink or the uplink. For example, the subscript x may be used to indicate either the downlink or the uplink. [[ID=三十六]]

[0030] N size,μ grid,x is indicated by a parameter provided by the RRC layer (for example, the parameter CarrierBandwidth) offset setting. N is indicated by a parameter provided by the RRC layer (for example, the parameter OffsetToCarrier) bandwidth setting. start,μ grid,x is indicated by a parameter provided by the RRC layer (for example, the parameter OffsetToCarrier) bandwidth setting. ​Offset setting and bandwidth setting refer to the configuration of the SCS-specific carrier. This is the setting used.

[0031] Subcarrier Spacing (SCS) for a given subcarrier spacing μ )Δf is Δf=2 μ It may also be 15kHz. Here, the setting μ for the subcarrier interval is 0 It may represent 1, 2, 3, or 4.

[0032] Figure 2 shows the subcarrier spacing setting μ and the number of OFDM symbols per slot N according to one aspect of this embodiment. slot symb This is an example illustrating the relationship between the cyclic prefix (CP) setting and the subcarrier spacing μ is 2, and the CP setting is normal CP (normal cyclic prefix). slot symb =14, N frame,μ slot =40, N subframe, μ slot = 4. Also, in Figure 2B, for example, if the subcarrier spacing μ is set to 2, Furthermore, if the CP setting is an extended cyclic prefix, N slot symb =12, N frame ,μ slot =40, N subframe,μ slot = 4

[0033] Time unit (T) c This may be used to represent length in the time domain. Time unit T c is, T c = 1 / (Δf max ·N f ) is Δf max= 480kHz. f =409 The answer is 6. The constant κ is given by κ = Δf max ·N f / (Δf ref N f,ref ) = 64. Δf ref is, 1 It is 5kHz. f,ref The answer is 2048.

[0034] The transmission of a signal on the downlink and / or the uplink is of length T. f It may be organized into wireless frames (system frames, frames). f =(Δf max N f / 100)·T s = 10ms. A wireless frame consists of 10 subframes. The length of a subframe is T. sf =(Δf max N f / 1000)·T s = 1ms. The number of OFDM symbols per subframe is N. subframe,μ symb =N slot symb N subframe,μ slot That is the case.

[0035] The length of one slot may be determined based on the subcarrier spacing setting μ. If μ is 0, the length of one slot may be 1 ms. If μ is 1, the length of one slot may be 0.5 ms. If μ is 2, the length of one slot may be 0.25 ms. If the value is 3, the length of one slot may be 0.125ms.

[0036] In one carrier, there is a first set of one or more frames on the uplink and a second set of one or more frames on the downlink. The uplink frames for transmission from terminal device 1 are T before the start of the downlink frames. TAStart from the front It will be done. TA is, (N TA ·N TA,offset )T c That's fine.

[0037] An OFDM symbol is a unit in the time domain of a communication scheme. For example, an OFDM symbol may be a unit in the time domain of CP-OFDM. Also, an OFDM symbol may be a unit in the time domain of DFT-s-OFDM. It can also be a unit of area.

[0038] A slot may consist of multiple OFDM symbols, for example, N consecutive symbols. slot symb A single OFDM symbol may constitute one slot. For example, a normal CP In the settings, N slot symb =14 is also acceptable. Furthermore, in the settings for extended CP, N slot symb =12 is also acceptable.

[0039] For a certain subcarrier interval setting μ, the number of slots and their indices within the subframe may be given. For example, slot index n μ s In the subframe, the range is from 0 to N subframe,μ slot The values ​​may be given in ascending order as integers in the range of -1. For setting the subcarrier interval μ, the number of slots and their indices in the radio frame may be given. Also, slot index n μ s,f In wireless frames, the range is 0 to N fram e,μ slot The integer values ​​may also be given in ascending order within the range of -1.

[0040] Figure 3 is a diagram showing an example of a resource grid configuration method according to one aspect of this embodiment. The horizontal axis of Figure 3 represents the frequency domain. Figure 3 shows an example of a resource grid configuration with a subcarrier spacing μ1 in a component carrier 300, and an example of a resource grid configuration with a subcarrier spacing μ2 in a certain component carrier. In this way, one or more subcarrier spacings may be set for a certain component carrier. In Figure 3, it is assumed that μ1 = μ2 - 1, but various aspects of this embodiment are It is not limited to the condition μ1 = μ2 - 1.

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

[0042] Point 3000 is an identifier used to identify a specific subcarrier. Point 3000 is also called Point A. Common resource block (CRB) set 3100 is a common resource block for setting the subcarrier interval μ1. It's a rock set.

[0043] Among the common resource block set 3100, the common resource block containing point 3000 (the black block in the common resource block set 3100 in Figure 3) is also referred to as the reference point of the common resource block set 3100. The reference point of the common resource block set 3100 may be the common resource block at index 0 in the common resource block set 3100.

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

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

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

[0047] Among the common resource block set 3200, the common resource block containing point 3000 (the solid black block in the common resource block set 3200 in Figure 3) is also referred to as the reference point of the common resource block set 3200. The reference point of the common resource block set 3200 may also be the common resource block with index 0 in the common resource block set 3200.

[0048] Offset 3012 is the offset from the reference point of the common resource block set 3200 to the reference point of the resource grid 3002. Offset 3012 is indicated by the number of common resource blocks relative to the subcarrier interval μ2. The resource grid 3002 starts from the reference point of the resource grid 3002. size,μ grid2,x Includes several common resource blocks.

[0049] Offset 3014 is the distance from the reference point of resource grid 3002 to the reference point of BWP3004 of index i2 (N start,μ BWP,i2 This is the offset up to ).

[0050] Figure 4 shows an example configuration of a resource grid 3001 according to one aspect of this embodiment. In the resource grid of Figure 4, the horizontal axis is the OFDM symbol index l sym The vertical axis represents the subcarrier index k.sc It is. The resource grid 3001 includes N size,μ grid1,x N RB sc sub - carriers and N subframe,μ symb OFDM symbols. Within the resource grid, the resource specified by the sub - carrier index k sc and the OFDM symbol index l sym is also referred to as a resource element (RE).

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

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

[0053] For the common resource block with a certain sub - carrier spacing setting μ, in a certain common resource block set, the index is assigned in ascending order from 0 in the frequency domain (indexing). The common resource block with index 0 for a certain sub - carrier spacing setting μ includes (or collides with, coincides with) the point 3000. The index n μ CRB of the common resource block for a certain sub - carrier spacing setting μ is n​μ CRB =ceil(k sc / N RB sc The relationship ) is satisfied. Here, k sc A subcarrier with =0 corresponds to point 3000. This is a subcarrier that has the same center frequency as the other subcarrier.

[0054] For a given subcarrier interval setting μ, the physical resource block in a given BWP is: In the frequency domain, indexing is performed in ascending order from 0. The index n of a physical resource block for a given subcarrier interval setting μ. μ PRB is, n μ CRB =n μ PRB +N start,μ BWP,i The following relationship is satisfied. Here, N start,μ BWP,i This indicates the baseline for BWP of index i.

[0055] BWP is defined as a subset of common resource blocks included in a resource grid. The BWP is defined as the reference point N of the BWP. start,μ BWP,i N starting with size,μ BWP,i Individual common lith Includes the link block. The BWP set for the downlink carrier is also called the downlink BWP. The BWP set for the uplink component carrier is also called the uplink BWP.

[0056] An antenna port may be defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed. 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. A symbol may correspond to a resource element.

[0057] The fact that the large-scale properties of a channel through which symbols are transmitted in one antenna port can be estimated from the channels through which symbols are transmitted in another antenna port is referred to as QCL (Quasi Co-Located). Here, the large-scale characteristics may include at least the long-interval characteristics of the channel. The large-scale characteristics include at least some or all of the delay spread, Doppler spread, Doppler shift, average gain, average delay, and some or all of the spatial Rx parameters. That's fine. The first and second antenna ports are QCL with respect to beam parameters if the received beam assumed by the receiver for the first antenna port and the second antenna port are QCL. The receiving beam assumed by the receiving side for the antenna port may be the same (or corresponding) as the receiving beam. The first antenna port and the second antenna port are QCL with respect to beam parameters if the transmitting beam assumed by the receiving side for the first antenna port and The transmitting beam assumed by the receiving side for the second antenna port may be the same (or corresponding). Terminal device 1 assumes that the two antenna ports are QCLs if the large-scale characteristics of the channel through which symbols are transmitted at one antenna port can be estimated from the channel through which symbols are transmitted at the other antenna port. It is also acceptable for it to be assumed that two antenna ports are QCLs.

[0058] Carrier aggregation is the aggregation of multiple servings Communication may be performed using cells. Furthermore, carrier aggregation may be performed using multiple aggregated component carriers. Also, carrier aggregation may be performed using multiple aggregated downlink component carriers. Furthermore, carrier aggregation may be performed using multiple aggregated uplink component carriers.

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

[0060] The wireless transmitting / receiving unit 30 includes at least part or all of the wireless transmitting unit 30a and the wireless receiving unit 30b. Here, the device configuration of the baseband unit included in the wireless transmitting unit 30a and the baseband unit included in the wireless receiving unit 30b may be the same or different. Also, the device configuration of the RF unit included in the wireless transmitting unit 30a and the RF unit included in the wireless receiving unit 30b may be the same or different. Also, the antenna unit included in the wireless transmitting unit 30a and the wireless receiving unit The device configuration of the antenna section included in the signal terminal 30b may be the same or different.

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

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

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

[0064] The media access control layer processing unit 35, which is part of the upper layer processing unit 34, performs MAC layer processing. MAC layer processing may also be MAC entity processing.

[0065] The wireless resource control layer processing unit 36, which is part of the upper layer processing unit 34, performs RRC layer processing. The line resource control layer processing unit 36 ​​processes various setting information / parameters (RRC parameters) of the terminal device 1. The wireless resource control layer processing unit 36 ​​manages the RRC message received from terminal device 1. Set the parameters based on the sage.

[0066] The wireless transceiver unit 30 (or wireless transmission unit 30a) performs processing such as modulation and encoding. The wireless transceiver unit 30 (or wireless transmission unit 30a) modulates and encodes the downlink data. A physical signal is generated by generating a baseband signal (conversion to a time-continuous signal) and transmitted to the terminal device 1. The wireless transceiver 30 (or wireless transmitter 30a) then transmits the physical signal. It may be placed on a component carrier and transmitted to terminal device 1.

[0067] The wireless transceiver unit 30 (or wireless receiver unit 30b) performs processing such as demodulation and decoding. The wireless transmitting / receiving unit 30 (or wireless receiving unit 30b) separates, demodulates, and processes the received physical signal. The signal is decoded, and the decoded information is output to the upper layer processing unit 34. The wireless transceiver 30 (or wireless receiver 30b) may perform a channel access procedure prior to transmitting the physical signal.

[0068] The RF unit 32 converts the signal received via the antenna unit 31 into a baseband signal (downconvert) by quadrature demodulation, removing unwanted frequencies. The fractional part is removed. The RF unit 32 outputs the processed analog signal to the baseband unit.

[0069] The baseband section 33 receives the analog signal input from the RF section 32. It converts to a digital signal. The baseband section 33 removes the portion corresponding to the Cyclic Prefix (CP) from the converted digital signal, and then processes the signal from which the CP has been removed. A Fast Fourier Transform (FFT) is performed to extract the signal in the frequency domain.

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

[0071] The RF section 32 uses a low-pass filter to remove unwanted frequency components from the analog signal input from the baseband section 33 and upconverts the analog signal to the carrier frequency. The signal is converted and transmitted via the antenna unit 31. The RF unit 32 may also have a function to control the transmission power. The RF unit 32 is also referred to as the transmission power control unit.

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

[0073] Each of the serving cells set for terminal device 1 is PCell(Primary cell, It may be any of the following: primary cell, PSCell (Primary SCG cell), and SCell (Secondary Cell). SpCell is also PCell, and It may also refer to one or both of the PSCell.

[0074] A PCell is a serving cell included in an MCG (Master Cell Group). A PCell is a cell that performs the initial connection establishment procedure or the connection re-establishment procedure by terminal device 1. (The cells that have been treated.)

[0075] PSCells are serving cells included in the SCG (Secondary Cell Group). This is a serving cell that is accessed randomly by terminal device 1.

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

[0077] A serving cell group (cell group) is a designation 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.

[0078] One or more downlink BWPs may be set for each serving cell (or downlink component carrier). One or more uplink BWPs are configured for each component carrier. That's fine.

[0079] Of the one or more downlink BWPs set for a serving cell (or downlink component carrier), one downlink BWP becomes the active downlink BWP. It may be set (or one downlink BWP may be activated). Of the one or more uplink BWPs set for a moving cell (or uplink component carrier), one uplink BWP is set as the active uplink BWP. This may be done (or one uplink BWP may be activated).

[0080] PDSCH, PDCCH, and CSI-RS may be received in an active downlink BWP. i. Terminal device 1 uses PDSCH, PDCCH, and CSI-RS in the active downlink BWP. You may attempt to receive. PUCCH and PUSCH are transmitted on the active uplink BWP. It may be done. Terminal device 1 performs PUCCH and PUSCH on the active uplink BWP. You may send this. Active downlink BWP and active uplink BWP are also collectively referred to as active BWP.

[0081] PDSCH, PDCCH, and CSI-RS do not need to be received in downlink BWPs other than active downlink BWPs (inactive downlink BWPs). Terminal device 1 is active In a downlink BWP that is not a downlink BWP, it is not necessary to attempt to receive PDSCH, PDCCH, and CSI-RS. PUCCH and PUSCH are not active uplink BWPs. It is not necessary to transmit PUCCH and PUSCH in an inactive uplink BWP (inactive uplink BWP). Terminal device 1 does not need to transmit PUCCH and PUSCH in an uplink BWP that is not an active uplink BWP. Inactive downlink BWP and inactive uplink BWP are collectively referred to as inactive BWP.

[0082] Downlink BWP switching is performed by one active serving cell. Deactivate the downlink BWP and the in-service of the serving cell. This is the procedure for activating one of the active downlink BWPs. The BWP switching of the downlink may be controlled by the BWP field included in the downlink control information. The BWP switching of the downlink may also be controlled based on parameters of the higher layer. good.

[0083] Uplink BWP switching is used to deactivate one active uplink BWP and activate one of the inactive uplink BWPs that is not the active one. The replacement may be controlled by the BWP field included in the downlink control information. Uplink The BWP switching of links may be controlled based on parameters at a higher level.

[0084] Two or more of the one or more downlink BWPs set for a serving cell A downlink BWP does not necessarily have to be set as the active downlink BWP. For a serving cell, one downlink BWP may be active at any given time.

[0085] Two or more of the one or more uplink BWPs set for a 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.

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

[0087] The wireless transceiver 10 includes at least part or all of the wireless transmission unit 10a and the wireless reception unit 10b. Here, the baseband unit 13 included in the wireless transmission unit 10a and the wireless reception unit The device configuration of the baseband section 13 included in 10b may be the same or different. Furthermore, the device configuration of the RF unit 12 included in the wireless transmission unit 10a and the RF unit 12 included in the wireless reception unit 10b may be the same or different. The device configuration of the antenna unit 11 and the antenna unit 11 included in the wireless receiver unit 10b are the same. It's fine if it's different, or it's fine if it's not.

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

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

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

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

[0092] The wireless resource control layer processing unit 16, which is part of the upper layer processing unit 14, performs RRC layer processing. The line resource control layer processing unit 16 processes various setting information / parameters (RRC parameters) of the terminal device 1. The wireless resource control layer processing unit 16 manages the RRC messages received from the base station device 3. Set the RRC parameters based on the message.

[0093] The wireless transceiver unit 10 (or wireless transmission unit 10a) performs processing such as modulation and encoding. The wireless transceiver unit 10 (or wireless transmission unit 10a) modulates and encodes the uplink data. A physical signal is generated by generating a baseband signal (conversion to a time-continuous signal) and transmitted to the base station device 3. The wireless transceiver 10 (or wireless transmitter 10a) transmits the physical signal It may be placed on a BWP (Active Uplink BWP) and transmitted to the base station device 3.

[0094] The wireless transceiver unit 10 (or wireless receiver unit 10b) performs processing such as demodulation and decoding. The wireless transceiver 10 (or wireless receiver 30b) may receive a physical signal in a BWP (active downlink BWP) of a serving cell. The wireless receiver 10b) separates, demodulates, and decodes the received physical signal, and the decoded information The output is sent to the upper layer processing unit 14. The wireless transceiver unit 10 (wireless receiver unit 10b) transmits the physical signal. Prior to this, the channel access procedure may be performed.

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

[0096] The baseband section 13 converts the analog signal input from the RF section 12 into a digital signal. The baseband section 13 then calculates the CP (Cyclic Prefix) from the converted digital signal. The unwanted portion is removed, and a Fast Fourier Transform (FFT) is performed on the signal from which the CP has been removed to extract the signal in the frequency domain.

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

[0098] The RF section 12 uses a low-pass filter to remove unwanted frequency components from the analog signal input from the baseband section 13 and upconverts the analog signal to the carrier frequency. The signal is converted and transmitted via the antenna unit 11. The RF unit 12 may also have a function to control the transmission power. The RF unit 12 is also referred to as the transmission power control unit.

[0099] The following will explain physical signals (signals).

[0100] Physical signals are a collective term for downlink physical channels, downlink physical signals, uplink physical channels, and uplink physical channels. Physical channels are a collective term for downlink physical channels and uplink physical channels. Physical signals are downlink This is a general term for physical signals and uplink physical signals.

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

[0102] PUCCH transmits Uplink Control Information (UCI) It may be used. PUCCH may be transmitted to deliver, transmit, or convey uplink control information. Uplink control information may be mapped to PUCCH. Terminal device 1 may transmit PUCCH on which uplink control information is mapped. Base station Device 3 may receive a PUCCH containing uplink control information.

[0103] Uplink control information (uplink control information bits, uplink control information sequence, uplink control information type) is channel state information (CSI), schedule Scheduling Request (SR), HARQ-ACK (Hybrid Automatic Repeat) The request (ACKnowledgement) must include at least some or all of the information.

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

[0105] HARQ-ACK information may at least include HARQ-ACK corresponding to a transport block (TB: Transport block). HARQ-ACK may indicate an ACK (acknowledgement) or NACK (negative-acknowledgement) corresponding to the transport block. ACK may indicate that the decoding of the transport block has been successfully completed (has been decoded). NACK may indicate that the decoding of the transport block has not been successfully completed (has not been decoded). HARQ-ACK information may include a HARQ-ACK codebook including one or more HARQ-ACK bits.

[0106] A transport block is a sequence of information bits delivered from a higher layer. Here, the sequence of information bits is also referred to as a bit sequence. Here, the transport block may be delivered from the UL-SCH (UpLink - Shared CHannel) of the transport layer.

[0107] In some cases, the HARQ-ACK for a transport block is referred to as the HARQ-ACK for the PDSCH. In this case, "HARQ-ACK for the PDSCH" indicates the HARQ-ACK for the transport block included in the PDSCH.

[0108] HARQ-ACK is for one CBG (Code Block Group) contained in a transport block. The corresponding ACK or NACK may also be indicated.

[0109] The scheduling request may be used at least to request UL-SCH resources for a new transmission. Scheduling request bit This may be used to indicate either a positive SR or a negative SR. When the scheduling request bit indicates a positive SR, it is also referred to as "a positive SR is transmitted." A positive SR may indicate that terminal device 1 is requesting UL-SCH resources for initial transmission. A positive SR may indicate that the scheduling request is triggered by a higher layer. A positive SR may be transmitted when the scheduling request is instructed by a higher layer. When the scheduling request bit indicates a negative SR, it is also referred to as "a negative SR is transmitted." A negative SR may indicate that terminal device 1 is not requesting UL-SCH resources for initial transmission. A negative SR may indicate that the scheduling request is not triggered by a higher layer. A negative SR may be transmitted when the scheduling request is not instructed by a higher layer.

[0110] Channel status information may include at least some or all of the Channel Quality Indicator (CQI), Precoder Matrix Indicator (PMI), and Rank Indicator (RI). CQI is an indicator related to the quality of the propagation path (e.g., propagation intensity) or the quality of the physical channel, and PMI is related to the precoder. These are related metrics. RI is a metric related to the transmit rank (or transmit layer count).

[0111] Channel status information is an indicator of the reception status of at least the physical signal (e.g., CSI-RS) used for channel measurement. The value of the channel status information may be determined by terminal device 1 based on the reception status assumed by at least the physical signal used for channel measurement. Channel measurement may include interference measurement.

[0112] PUCCH may support the PUCCH format. PUCCH may be a set of resource elements used to transmit the PUCCH format. PUCCH may contain the PUCCH format. PUCCH may be transmitted with a certain PUCCH format. The PUCCH format may be interpreted as a format of information. Alternatively, the PUCCH format may be interpreted as a set of information set into a certain format of information.

[0113] PUSCH provides either or both of the transport block and the uplink control information. It may be used for transmission. The transport block may be placed in PUSCH. Transport blocks delivered by UL-SCH may be placed in PUSCH. Link control information may be placed in PUSCH. Terminal device 1 is transport block A PUSCH may be transmitted containing either or both of the uplink control information. The base station device 3 may receive a PUSCH containing either or both a transport block and uplink control information.

[0114] PRACH may be transmitted to convey the random access preamble. Device 1 may transmit PRACH. Base station device 3 may receive PRACH. column x u,v (n) is x u,v (n) = x u (mod(n+Cv ,L RA Defined by )), where x u It belongs to the ZC (Zadoff Chu) series. Also, x u is x u =exp(-jπui(i+1) / L RA ) by It may be defined as follows: j is the imaginary unit, and π is the ratio of a circle's circumference to its diameter. v This corresponds to the cyclic shift of the PRACH series. Also, L RA This corresponds to the length of the PRACH sequence. Also, L RA It is 839 or 139. Also, i is from 0 to L RA It is an integer in the range of -1. Also, u is the series index for the PRACH series.

[0115] For each PRACH opportunity, 64 random access preambles are defined. The access preamble is a cyclic shift C in the PRACH family. v , and identified based on the sequence index u for the PRACH sequence. 64 random access prians identified Each bull may be assigned an index.

[0116] Uplink physical signals may correspond to a set of resource elements. Uplink physical signals do not have to be used to transmit information generated in the upper layer. However, uplink physical signals may be used to transmit information generated in the physical layer. Uplink physical signals may also be physical signals used in the uplink component carrier. Terminal device 1 may transmit uplink physical signals. Base station device 3 may receive uplink physical signals. In a wireless communication system according to one aspect of this embodiment, at least some or all of the following uplink physical signals may be used. ·UL DMRS(UpLink Demodulation Reference Signal) ·SRS(Sounding Reference Signal) ·UL PTRS(UpLink Phase Tracking Reference Signal)

[0117] UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.

[0118] The set of antenna ports for a PUSCH (DMRS associated with a PUSCH, DMRS included in a PUSCH, DMRS corresponding to a PUSCH) is given based on the set of antenna ports for the PUSCH. It may be obtained. For example, the set of antenna ports for a DMRS for a PUSCH may be the same as the set of antenna ports for the PUSCH.

[0119] The transmission of a PUSCH and the transmission of a DMRS for said PUSCH are indicated by a single DCI format. This may be done (or scheduled). A PUSCH and the DMRS for said PUSCH may be collectively referred to as PUSCH. Sending a PUSCH may be done by sending a PUSCH and the DMRS for said PUSCH.

[0120] The propagation path of a pusher may be estimated from the DMRS for that pusher.

[0121] 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. stomach.

[0122] The transmission of PUCCH and the transmission of DMRS for said PUCCH are indicated by a single DCI format. It may (or may be triggered). Mapping of PUCCH to resource element (resource element mapping), and to the DMRS resource element for the PUCCH. One or both of the mappings may be given by a single PUCCH format. The PUCCH and the DMRS for said PUCCH may be collectively referred to as PUCCH. Sending a PUCCH This may involve sending a PUCCH and a DMRS for the PUCCH.

[0123] The propagation path of PUCCH may be estimated from the DMRS for the PUCCH.

[0124] A downlink physical channel may correspond to a set of resource elements that transmit information generated in the upper layer. A downlink physical channel may also be a physical channel used in a downlink component carrier. Base station device 3 may transmit a downlink physical channel. Terminal device 1 may receive a 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)

[0125] PBCH may be transmitted to transmit either or both MIB (Master Information Block) and / or physical layer control information, where physical layer control information is information generated at the physical layer. MIB is a set of parameters placed in BCCH (Broadcast Control Channel), which is a logical channel of the MAC layer. The BCCH is a channel of the transport layer. It is placed on a BCH. The BCH may be placed (mapped) on a PBCH. Terminal device 1 may receive a PBCH on which the MIB and / or physical layer control information are placed. Base station device 3 may transmit a PBCH on which the MIB and / or physical layer control information are placed. stomach.

[0126] For example, the physical layer control information may consist of 8 bits. The physical layer control information may include at least some or all of the following 0A to 0D. 0A) Wireless frame bit 0B) Half Wireless Frame (Half System Frame, Half Frame) Bits 0C)SS / PBCH Block Index Bit 0D) Subcarrier offset bit

[0127] The wireless frame bits are used to indicate the wireless frame transmitted by the PBCH (the wireless frame containing the slot from which the PBCH is transmitted). The wireless frame bits consist of 4 bits. The wireless frame bits may consist of 4 bits from a 10-bit wireless frame indicator. For example, the wireless frame indicator may be used to identify wireless frames from index 0 to index 1023.

[0128] 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 the radio frame in which the PBCH is transmitted. Here, the half-radio frame may consist of five subframes. Alternatively, the half-radio frame may consist of the first five subframes of the ten subframes included in the radio frame. Alternatively, the half-radio frame may consist of the last five subframes of the ten subframes included in the radio frame.

[0129] The SS / PBCH block index bits are used to indicate the SS / PBCH block index. The SS / PBCH block index bits consist of 3 bits. The SS / PBCH block index bits may consist of 3 bits from a 6-bit SS / PBCH block index indicator. The SS / PBCH block index indicator may be used to identify SS / PBCH blocks from index 0 to index 63. The SS / PBCH block may be referred to as SSB.

[0130] The subcarrier offset bit is used to indicate the subcarrier offset. The subcarrier offset may be used to indicate the difference between the leading subcarrier to which the PBCH is mapped and the leading subcarrier to which the control resource set at index 0 is mapped.

[0131] PDCCH may be transmitted to transmit Downlink Control Information (DCI). Downlink Control Information may be placed (mapped) in the PDCCH. Device 1 may receive a PDCCH containing downlink control information. Base station device 3, A PDCCH containing downlink control information may be transmitted.

[0132] Downlink control information may be transmitted in DCI format. The DCI format may be interpreted as the format of the downlink control information. Furthermore, the DCI format is... It is interpreted as a set of downlink control information set in a certain downlink control information format. That's good too.

[0133] DCI format 0_0, DCI format 0_1, DCI format 0_2, DCI format 1_0, DCI format 1_1, and DCI format 1_2 are DCI formats. Link DCI format is a collective term for DCI format 0_0, DCI format 0_1, and DCI format 0_2. Downlink DCI format is DCI format 1_0, DCI format This is a general term for Format 1_1 and DCI Format 1_2.

[0134] DCI format 0_0 is less for scheduling PUSCH to be placed in a cell It is also used. DCI format 0_0 consists of at least some or all of the fields 1A to 1E. 1A) Identifier field for DCI formats 1B) Frequency domain resource assignment field 1C) Time domain resource assignment field 1D) Frequency hopping flag field 1E) MCS field (Modulation and Coding Scheme field)

[0135] A DCI format specific field is a DCI format that includes the DCI format specific field. -The mat may indicate whether it is an uplink DCI format or a downlink DCI format. In other words, the DCI format-specific field may be included for both the uplink DCI format and the downlink DCI format. Here, DCI format 0_0 The DCI format specific field included may indicate 0.

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

[0137] The time domain resource allocation field included in DCI format 0_0 is for PUSCH It may be used to indicate the allocation of time resources.

[0138] The frequency hopping flag field indicates whether frequency hopping is applied to PUSCH. It may be used to indicate whether or not something is true.

[0139] The MCS field included in DCI format 0_0 may be used to indicate at least one or both of the modulation scheme and the target coding rate for PUSCH. The target coding rate is the target coding rate for the transport block placed in PUSCH. This may also be the case. The size of the transport block (TBS) placed in the PUSCH is determined by the target coding rate and one or both of the modulation schemes for the PUSCH. It may be decided based on the method.

[0140] DCI format 0_0 does not need to include fields used in CSI requests.

[0141] DCI format 0_0 does not need to include a carrier indicator field. That is, the uplink where the PUSCH scheduled by DCI format 0_0 is located. The serving cell to which the component carrier belongs is a PDCCH containing DCI format 0_0. The serving cell of the uplink component carrier where it is located may be the same as the serving cell. Terminal device 1 detects DCI format 0_0 in a downlink component carrier of a serving cell and places a PUSCH scheduled by DCI format 0_0 on the uplink component carrier of that serving cell. It is acceptable to recognize this.

[0142] DCI format 0_0 does not necessarily have to include a BWP field. Here, DCI format 0_0 may be a DCI format that schedules a PUSCH without changing the active uplink BWP. Terminal device 1 may recognize that it will transmit the PUSCH without switching the active uplink BWP based on detecting DCI format 0_0 used for scheduling the PUSCH.

[0143] DCI format 0_1 ​​is less for scheduling PUSCHs placed in a cell. It is also used. DCI format 0_1 ​​consists of at least some or all of the fields 2A to 2H. 2A) DCI Format Specific Fields 2B) Frequency Domain Resource Allocation Field 2C) Time-domain resource allocation field for uplink 2D) Frequency Hopping Flag Field 2E) MCS Field 2F) CSI request field 2G) BWP field 2H) Carrier indicator field

[0144] The DCI format specific field included in DCI format 0_1 ​​may indicate 0. .

[0145] The frequency domain resource allocation field included in DCI format 0_1 ​​is for PUSCH It may be used to indicate the allocation of frequency resources.

[0146] The time domain resource allocation field included in DCI format 0_1 ​​is for PUSCH It may be used to indicate the allocation of time resources.

[0147] The MCS field included in DCI format 0_1 ​​may be used to indicate at least some or all of the modulation scheme and / or target coding rate for PUSCH.

[0148] The BWP field of DCI format 0_1 ​​is scheduled according to DCI format 0_1. It may be used to indicate the uplink BWP where the PUSCH being placed is located. In other words, DCI Format 0_1 ​​may involve a change in the active uplink BWP. Terminal device 1 may recognize the uplink BWP on which the PUSCH is located based on detecting the DCI format 0_1 ​​used for scheduling the PUSCH.

[0149] DCI format 0_1, which does not include the BWP field, may be a DCI format that schedules PUSCH without changing the active uplink BWP. Terminal device 1 detects DCI format 0_1, which is used for scheduling PUSCH and does not include the BWP field, and based on this, changes the active uplink BWP It may be recognized that the PUSCH will be sent without making a change.

[0150] DCI format 0_1 ​​includes the BWP field, but terminal device 1 is DCI format 0_1 If the BWP switching function is not supported, the BWP field may be ignored by terminal device 1. In other words, terminal device 1 that does not support the BWP switching function uses DCI format 0_1 ​​for scheduling PUSCH and the BWP field is Switching of the active uplink BWP based on the detection of DCI format 0_1. It may be recognized that the PUSCH is sent without performing the following. Here, terminal device 1 switches BWP If the function of E is supported, the RRC layer's function information reporting procedure may report that "Terminal device 1 supports the BWP switching function."

[0151] The CSI request field is used to instruct the CSI report.

[0152] If DCI format 0_1 ​​includes a carrier indicator field, the carrier indicator field indicates the uplink component carrier on which PUSCH is located. It may be used to indicate: If DCI format 0_1 ​​does not include a carrier indicator field, the uplink component carrier on which PUSCH is located is the uplink on which PDCCH is located, which includes DCI format 0_1 ​​used for scheduling PUSCH. It may be the same as the component carrier. When the number of uplink component carriers set on terminal device 1 in a serving cell group is 2 or more (when uplink carrier aggregation is operated in a serving cell group), it is used for scheduling the PUSCH placed in that serving cell group. The number of bits in the carrier indicator field included in DCI format 0_1 ​​may be 1 bit or more (for example, 3 bits). If the number of uplink component carriers set on terminal device 1 in a serving cell group is 1 (i.e., uplink carrier aggregation is not operated in a serving cell group), the number of bits in the carrier indicator field included in DCI format 0_1 ​​used for scheduling PUSCH placed in that serving cell group is 0 bits. It may be (or the schedule of PUSCH placed in the serving cell group) The DCI format 0_1 ​​used for queuing does not necessarily need to include a carrier indicator field.

[0153] DCI format 1_0 is less for scheduling PDSCHs placed in a cell It is also used. DCI format 1_0 consists of at least some or all of 3A through 3F. 3A) DCI Format Specific Fields 3B) Frequency Domain Resource Allocation Field 3C) Time Domain Resource Allocation Field 3D) MCS Field 3E) PDSCH to HARQ feedback timing indicator field 3F) PUCCH resource indicator field

[0154] The DCI format specific field included in DCI format 1_0 may indicate 1. .

[0155] The frequency domain resource allocation field included in DCI format 1_0 is for PDSCH It may be used, at least, to indicate the allocation of frequency resources.

[0156] The time domain resource allocation field included in DCI format 1_0 is for PDSCH It may be used at least to indicate the allocation of time resources.

[0157] The MCS field included in DCI format 1_0 may be used to indicate at least one or both of the modulation scheme and the target coding rate for the PDSCH. The target coding rate is the target coding rate for the transport block placed in the PDSCH. It may also be the case that the size of the transport block (TBS) placed in the PDSCH is determined by the target coding rate and the modulation scheme for the PDSCH, or both. It may be decided based on the method.

[0158] The PDSCH_HARQ feedback timing instruction field is set to 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 be used to indicate a set.

[0159] The PUCCH resource reference field may be a field that indicates the index of one or more PUCCH resources included in the PUCCH resource set. The PUCCH resource set may contain one or more PUCCH resources.

[0160] DCI format 1_0 does not need to include a carrier indicator field. In other words, the downlink where the PDSCH scheduled by DCI format 1_0 is located. The component carrier is the downlink where the PDCCH containing the DCI format 1_0 is located. It may be the same as the component carrier. Terminal device 1 detects DCI format 1_0 in a certain downlink component carrier and then the DCI format It may be recognized that the PDSCH scheduled by T1_0 is to be placed on the downlink component carrier.

[0161] DCI format 1_0 does not necessarily have to include a BWP field. Here, DCI format 1_0 may be a DCI format that schedules a PDSCH without changing the active downlink BWP. Terminal device 1 may recognize that it will receive the PDSCH without switching the active downlink BWP based on detecting DCI format 1_0 used for scheduling the PDSCH.

[0162] DCI format 1_1 is less for scheduling PDSCHs placed in a cell It is also used. DCI format 1_1 consists of at least some or all of 4A through 4I. 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 Indicator Field 4G)PUCCH resource instruction field 4H) BWP Field 4I) Carrier Indicator Field

[0163] The DCI format specific field included in DCI format 1_1 may indicate 1. .

[0164] The frequency domain resource allocation field included in DCI format 1_1 is for PDSCH It may be used, at least, to indicate the allocation of frequency resources.

[0165] The time domain resource allocation field included in DCI format 1_1 is for PDSCH It may be used at least to indicate the allocation of time resources.

[0166] The MCS field included in DCI format 1_1 may be used to indicate at least one or both of the modulation scheme and the target coding rate for PDSCH.

[0167] DCI format 1_1 includes the PDSCH_HARQ feedback timing instruction field. In this case, the PDSCH_HARQ feedback timing instruction field extends from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH. It may be used to indicate the offset. If DCI format 1_1 does not include the PDSCH_HARQ feedback timing indicator field, then from the slot containing the last OFDM symbol of PDSCH to the slot containing the first OFDM symbol of PUCCH The fset may be identified by parameters in the higher layer.

[0168] The PUCCH resource reference field may be a field that indicates the index of one or more PUCCH resources included in the PUCCH resource set.

[0169] The BWP field of DCI format 1_1 is used for scheduling according to DCI format 1_1. It may be used to indicate the downlink BWP where the PDSCH being linked is located. In other words, DCI Format 1_1 may involve a change in the active downlink BWP. Terminal device 1 may recognize the downlink BWP on which the PUSCH is located based on detecting the DCI format 1_1 used for scheduling the PDSCH.

[0170] A DCI format 1_1 that does not include the BWP field may be a DCI format that schedules the PDSCH without changing the active downlink BWP. Based on the detection of a DCI format 1_1 that is used for scheduling the PDSCH and does not include the BWP field, the terminal device 1 changes the active downlink BWP. It is acceptable to recognize that the PDSCH is being received without performing a replacement.

[0171] DCI format 1_1 includes a BWP field, but terminal device 1 is DCI format 1_1 If the BWP switching function is not supported, the BWP field may be ignored by terminal device 1. In other words, terminal device 1 that does not support the BWP switching function uses DCI format 1_1 for PDSCH scheduling and the BWP field is Switching of the active downlink BWP based on the detection of DCI format 1_1. It is also possible to recognize that the PDSCH has been received without performing the above action. Here, if terminal device 1 supports the BWP switching function, it is also possible to report in the RRC layer's function information reporting procedure that "terminal device 1 supports the BWP switching function".

[0172] If DCI format 1_1 includes a carrier indicator field, the carrier indicator field indicates the downlink component carrier on which the PDSCH is located. It may be used to indicate: If DCI format 1_1 does not include a carrier indicator field, the downlink component carrier on which the PDSCH is located is the downlink on which the PDCCH is located, which includes DCI format 1_1 used for scheduling the PDSCH. It may be the same as the component carrier. When the number of downlink component carriers set on terminal device 1 in a serving cell group is 2 or more (when downlink carrier aggregation is operated in a serving cell group), it is used for scheduling the PDSCHs located in that serving cell group. The number of bits in the carrier indicator field included in DCI format 1_1 may be 1 bit or more (for example, 3 bits). If the number of downlink component carriers set on terminal device 1 in a serving cell group is 1 (i.e., downlink carrier aggregation is not operated in a serving cell group), the number of bits in the carrier indicator field included in DCI format 1_1 used for scheduling PDSCHs placed in that serving cell group is 0 bits. It may be (or the schedule of PDSCH placed in the serving cell group) The DCI format 1_1 used for queuing does not necessarily have to include a carrier indicator field.

[0173] PDSCH may be transmitted to transmit transport blocks. PDSCH may be used to transmit transport blocks delivered from DL-SCH. PDSCH is It may be used to transmit a transport block. The transport block may be placed in the PDSCH. The transport block corresponding to the DL-SCH may be placed in the PDSCH. Base station device 3 may transmit the PDSCH. Terminal device 1 may receive the PDSCH.

[0174] Downlink physical signals may correspond to a set of resource elements. Downlink physical signals do not have to carry information generated in the upper layer. Downlink physical signals may be physical signals used in the downlink component carrier. Downlink physical signals may be transmitted by base station device 3. Downlink physical signals may be transmitted by terminal device 1. In a wireless communication system according to one aspect of this 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)

[0175] The synchronization signal may be used to synchronize the terminal device 1 in either the frequency domain or the time domain of the downlink, or both. The synchronization signal is a general term for PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal).

[0176] Figure 7 shows an example of the configuration of an SS / PBCH block according to one aspect of this embodiment. In Figure 7, the horizontal axis is the time axis (OFDM symbol index l sym ) and the vertical axis represents the frequency domain. Block 700 also shows the set of resource elements for PSS. Block 720 shows a set of resource elements for SSS. Also, four blocks Blocks 710, 711, 712, and 713 represent a set of resource elements for a PBCH and a DMRS for the PBCH (DMRS associated with the PBCH, DMRS contained within the PBCH, and DMRS corresponding to the PBCH).

[0177] As shown in Figure 7, the SS / PBCH block contains PSS, SSS, and PBCH. The SS / PBCH block also contains four consecutive OFDM symbols. The SS / PBCH block contains 240 subcarriers. PSS is the 57th to 183rd subcarriers in the first OFDM symbol. It is placed on the subcarrier. SSS is from the 57th to the 183rd OFDM symbol in the third OFDM symbol. It is placed in the nth subcarrier. Subcarriers 1 through 56 of the first OFDM symbol may be set to zero. Subcarriers 184 through 240 of the first OFDM symbol may be set to zero. Subcarriers 49 through 56 of the third OFDM symbol may be set to zero. Subcarriers 184 through 192 of the third OFDM symbol may be set to zero. The PBCH is placed in subcarriers 1 through 240 of the second OFDM symbol, where a DMRS for the PBCH is not placed. The PBCH is placed in subcarriers 1 through 48 of the third OFDM symbol, where a DMRS for the PBCH is not placed. The PBCH is placed in subcarriers 193 through 240 of the third OFDM symbol, where a DMRS for the PBCH is not placed. The PBCH is placed on the subcarriers from the 1st to the 240th subcarrier of the 4th OFDM symbol, where a DMRS for the PBCH is not located.

[0178] The antenna ports for PSS, SSS, PBCH, and DMRS for PBCH may be the same.

[0179] The PBCH to which the symbol of a PBCH is transmitted at a certain antenna port is mapped A DMRS for a PBCH located in a slot, which may be estimated by a DMRS for the PBCH included in the SS / PBCH block containing the PBCH.

[0180] DL DMRS is the sum of DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH. It is a title.

[0181] The set of antenna ports for DMRS for PDSCH (DMRS associated with PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) is given based on the set of antenna ports for said PDSCH. It may be obtained. In other words, the set of antenna ports for a DMRS for a PDSCH may be the same as the set of antenna ports for the PDSCH.

[0182] The transmission of PDSCH and the transmission of DMRS for said PDSCH are indicated by a single DCI format. This may be done (or scheduled). The PDSCH and the DMRS for the PDSCH may be collectively referred to as the PDSCH. Transmitting a PDSCH may be done by transmitting the PDSCH and the DMRS for the PDSCH.

[0183] The propagation path of a PDSCH may be estimated from the DMRS for that PDSCH. A set of resource elements on which the signal is transmitted, and a DMRS symbol for the PDSCH. If the set of resource elements on which the symbol is transmitted belongs to the same Precoding Resource Group (PRG), the PDSCH on which the symbol of that PDSCH is transmitted at a given antenna port may be estimated by the DMRS for that PDSCH.

[0184] The antenna port for the DMRS for PDCCH (DMRS associated with PDCCH, DMRS included in PDCCH, DMRS corresponding to PDCCH) may be the same as the antenna port for PDCCH.

[0185] PDCCH may be inferred from the DMRS for that PDCCH. In other words, the propagation path of a PDCCH may be inferred from the DMRS for that PDCCH. If the symbol of a certain PDCCH is transmitted, A set of elements and a resource on which the DMRS symbol for the PDCCH is transmitted. When the same precoder is applied (or is assumed to be applied) to a set of elements, the symbol of that PDCCH at a certain antenna port is transmitted. The PDCCH may be estimated by the DMRS for the PDCCH.

[0186] BCH (Broadcast Channel), UL-SCH (Uplink-Shared Channel), and DL-SCH (Downlink-Shared Channel) are transport channels. Transport channels define the relationship between physical layer channels and MAC layer channels (also called logical channels). ru.

[0187] The BCH in the transport layer is mapped to the PBCH in the physical layer. In other words, the transport layer Transport blocks passing through the BCH are delivered to the PBCH in the physical layer. The UL-SCH of the transport layer is mapped to the PUSCH of the physical layer. In other words, the UL-SCH of the transport layer Transport blocks passing through are delivered to the physical layer's PUSCH. The DL-SCH of the transport layer is mapped to the PDSCH of the physical layer. In other words, it is transmitted through the DL-SCH of the transport layer. The transport block is delivered to the PDSCH in the physical layer.

[0188] Each serving cell may be given one UL-SCH and one DL-SCH. BCH may be given to the PCell. BCH may not be given to the PSCell or SCell.

[0189] At the MAC layer, HARQ (Hybrid Automatic Repeat request) control is performed for each transport block.

[0190] BCCH (Broadcast Control Channel), CCCH (Common Control Channel), and DCCH (Dedicated Control Channel) are logical channels. For example, BCCH is MIB. Alternatively, it is a channel in the RRC layer used to transmit system information. Also, CCCH The Common Control Channel transmits a common RRC message across multiple terminal devices. It may be used for the purpose of... Here, CCCH is, for example, a terminal device that is not connected to RRC. It may be used for 1. Also, DCCH (Dedicated Control Channel) is a terminal device It may be used at least to send a dedicated RRC message to 1. Here, DCCH This may be used, for example, for terminal device 1 that is connected via RRC.

[0191] For example, system information (SI) may consist of an MIB and several SIBs (System Information blocks). Furthermore, system information may be divided into Minimum SI and Other SI. Minimum SI may include basic information required for initial access. In addition, Minimum SI may include information for obtaining Other SI. Minimum SI may consist of an MIB and SIB1. Other SI is communicated in Minimum SI. This may include all SIBs that are not included. These SIBs may be broadcast or transmitted via DL-SCH.

[0192] SIB1 may define the scheduling of Other SIs. SIB1 may contain information required for initial access. SIB1 may be referred to as RMSI (Remaining Minimum SI). SIB1 may be left idle periodically in DL-SCH. SIB1 is in the RRC_CONNECTED state. It may be transmitted to several UEs in DL-SCH in a dedicated manner.

[0193] Higher-level parameters common to multiple terminal devices 1 are also called common higher-level parameters. Here, common higher-level parameters may be defined as parameters specific to a serving cell. Here, parameters specific to a serving cell are parameters common to the terminal devices (e.g., terminal devices 1-A, B, C) on which the serving cell is set. It's okay to use "ta".

[0194] For example, common upper-layer parameters may be included in the RRC message delivered to BCCH. For example, common upper-layer parameters may be included in the RRC message delivered to DCCH. .

[0195] Among the upper-level parameters, those that differ from common upper-level parameters are also called dedicated upper-level parameters. Here, dedicated upper-level parameters can provide dedicated RRC parameters for terminal device 1-A on which a serving cell is configured. In other words, dedicated RRC parameters are upper-level parameters that can provide unique settings for each of terminal devices 1-A, B, and C.

[0196] The BCCH of the logical channel is mapped to the BCH of the transport layer or the DL-SCH. For example, a transport block containing MIB information is delivered to the BCH in the transport layer. A transport block containing system information that is not MIB is delivered to the transport layer. It is delivered to DL-SCH in the to layer. Also, CCCH is mapped to DL-SCH or UL-SCH. In other words, transport blocks mapped to CCCH are delivered to DL-SCH or UL-SCH. Also, DCCH is mapped to DL-SCH or UL-SCH. In other words, transport blocks mapped to DCCH are delivered to DL-SCH or UL-SCH.

[0197] An RRC message contains one or more parameters managed in the RRC layer. These parameters are also referred to as RRC parameters. For example, RRC Messages may include MIBs. RRC messages may also include system information. RRC messages may also include messages corresponding to CCCH. Sage may include a message corresponding to DCCH. An RRC message that includes a message corresponding to DCCH is also called an individual RRC message.

[0198] Higher-layer parameters are RRC parameters or parameters included in MAC CE (Medium Access Control Control Element). In other words, higher-layer parameters are MIB, system information, messages corresponding to CCCH, and messages corresponding to DCCH. It is a general term for the parameters included in MAC CE. The parameters included in MAC CE are sent by the MAC CE (Control Element) command.

[0199] The procedures performed by terminal device 1 include at least some or all of the following 5A to 5C. 5A) Cell search 5B) Random access 5C) Data communication

[0200] Cell search is a procedure used by terminal device 1 to synchronize with a cell in the time domain and frequency domain and to detect its physical cell identity. In other words, terminal device 1 may use cell search to synchronize with a cell in the time domain and frequency domain and detect its physical cell identity.

[0201] The PSS series is assigned based on at least the physical cell ID. The SSS series is assigned based on at least the physical cell ID.

[0202] SS / PBCH block candidates indicate resources that are permitted (possible, reserved, configured, specified, or potentially) to send SS / PBCH blocks.

[0203] A set of SS / PBCH block candidates in a half-wireless frame is also called an SS burst set. An SS burst set is a transmission window. It is also called the SS transmission window or the Discovery Reference Signal transmission window. An SS burst set is a general term that includes at least the first SS burst set and the second SS burst set.

[0204] The base station device 3 transmits SS / PBCH blocks of one or more indices at predetermined intervals. The terminal device 1 may detect at least one of the SS / PBCH blocks of the one or more indices and attempt to decode the PBCH contained in the SS / PBCH block.

[0205] Random access is a procedure that includes at least part or all of message 1, message 2, message 3, and message 4.

[0206] Message 1 is the procedure for sending PRACH by terminal device 1. Terminal device 1, Based on an index of SS / PBCH block candidates detected through cell search, a PRACH is sent in one PRACH opportunity selected from among one or more PRACH opportunities. Each PRACH opportunity is defined based on at least time-domain and frequency-domain resources. It can be done.

[0207] Terminal device 1 transmits one random access preamble selected from among the PRACH opportunities corresponding to the index of the SS / PBCH block candidate in which the SS / PBCH block is detected. .

[0208] Message 2 is a procedure to attempt to detect DCI format 1_0 with a CRC (Cyclic Redundancy Check) scrambled with RA-RNTI (Random Access - Radio Network Temporary Identifier) ​​by terminal device 1. Terminal device 1 detects SS based on cell search. A set of control resources provided based on the MIB contained in the PBCH, which is included in the / PBCH block. And, in the resources indicated based on the setting of the search area set, the DCI format Attempts to detect PDCCH containing. Message 2 is also called a random access response. It can be done.

[0209] Message 3 is a message that sends a PUSCH scheduled by a random access response grant contained in DCI format 1_0 detected by the Message 2 procedure. This is the order. Here, the random access response grant is assigned to the MAC CE included in the PDSCH scheduled by the DCI format 1_0. Further details will be shown.

[0210] PUSCH, which is scheduled based on random access response grants, Message 3 PUSCH or PUSCH. Message 3 PUSCH is a collision resolution ID. (Contention resolution identifier) ​​MAC CE includes the collision resolution ID.

[0211] Message 3 PUSCH retransmission is scheduled in DCI format 0_0 with scrambled CRC based on TC-RNTI (Temporary Cell - Radio Network Temporary Identifier) It will be processed.

[0212] Message 4 attempts to detect DCI format 1_0 with a scrambled CRC based on either C-RNTI (Cell - Radio Network Temporary Identifier) ​​or TC-RNTI. The procedure is as follows: Terminal device 1 receives a PDSCH scheduled based on the DCI format 1_0. The PDSCH may include a collision resolution ID.

[0213] Data communication is a general term encompassing both downlink communication and uplink communication.

[0214] In data communication, terminal device 1 attempts to detect PDCCH in resources identified based on the control resource set and the search area set (monitor PDCCH, PDCCH (Monitor).

[0215] 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 continuous resources (non-interleaved mapping) or distributed resources. It may be configured more complexly (interleaver mapping).

[0216] The set of resource blocks that constitute the control resource set may be indicated by a higher-level parameter. The number of OFDM symbols that constitute the control resource set may also be indicated by a higher-level parameter.

[0217] A single CORESET pool index may be provided for one or more Control Resource Sets (CORESETs). For example, a CORESET pool index may be provided for one or more Control Resource Sets (CORESETs). The CORESET pool index may be provided by a higher-level parameter. For example, if it is not provided by such a higher-level parameter, the CORESET pool index may be 0. The value of the CORESET pool index may be 0 or 1. The CORESET pool index may also be referred to as the index of the CORESET resource pool. For example, in one active downlink BWP of one serving cell, the CORESET pool index is provided. Alternatively, a CORESET pool index with value 0 may be provided for the first set of CORESETs.

[0218] Terminal device 1 is a first hand for reporting HARQ-ACK information related to the first CORESETs. A second procedure may be applied to report HARQ-ACK information related to the first and second CORESETs. Terminal device 1 may apply the first and second procedures separately. The first and second CORESETs may be CORESETs in the active downlink BWP of a single serving cell. A CORESET pool index with a value of 0 may be provided for the first CORESETs. A CORESET pool index with a value of 1 may be provided for the second CORESETs. The first CORESETs may be one or more first CORESETs. The second CORESETs may be one or more second CORESETs.

[0219] The TCI state (Transmission Configuration Indication state) is in DCI format. Therefore, it may be provided. One or more TCI state settings (or a list of settings) may be provided by higher-layer parameters to decode the PDSCH. For example, terminal Device 1 may decode the PDSCH according to the PDCCH to be decoded. One TCI state This is a parameter for setting the QCL relationship between the downlink reference signal and the first antenna port. It may include a first antenna port. For example, the first antenna port may be the DMRS port of the PDSCH (the antenna port associated with DMRS). The first antenna port may be the DMRS port of the PDCCH. The first antenna port may be the CSI-RS port of the CSI-RS resource. QCL relationships may be set by higher-layer parameters. For example, see the first downlink reference. For a signal, the QCL relationship may be set by the upper layer parameter qcl-Type1. For example, for a second downlink reference signal, the QCL relationship may be set by the upper layer parameter qcl-Type2. For example, the QCL relationship between the first antenna port and the second antenna port is The first and second antenna ports may indicate QCL. Downlink The reference signal can be either CSI-RS or SS / PBCH block.

[0220] The CORESET pool index of the first CORESET may be different from the CORESET pool index of the second CORESET. The inclusion of such a value may be set by the higher-level parameters. The first antenna port associated with one of the CORESET pool in the Gsell may be assumed to be the first reference signal and QCL.

[0221] In downlink communication, terminal device 1 detects the downlink DCI format. The detected downlink DCI format is used at least for resource allocation on the PDSCH. The detected downlink DCI format is also called the downlink assignment. Terminal device 1 attempts to receive the PDSCH. Based on the PUCCH resource shown in DCI format, the HARQ-ACK corresponding to the PDSCH (the HARQ-ACK corresponding to the transport block contained in the PDSCH) is sent to the base station device 3. I will report it.

[0222] In uplink communication, terminal device 1 detects the uplink DCI format. The DCI format that is provided will be used at least for resource allocation in PUSCH. The detected uplink DCI format is also referred to as an uplink grant. Terminal device 1 transmits the PUSCH.

[0223] In configured grant scheduling, PUSCH is used in the scheduler The uplink grant to be set is set for each transmission cycle 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 is set for the scheduling that is set. This may be indicated by an uplink grant.

[0224] A UL slot may be a slot composed of UL symbols. A special slot may be a slot composed of UL symbols, flexible symbols, and DL symbols. A DL slot may be a slot composed of DL symbols.

[0225] The UL symbol may be an OFDM symbol set or indicated for the uplink in time-division duplexing. The UL symbol may be an OFDM symbol set or indicated for PUSCH, or PUCCH, PRACH, or SRS. The UL symbol may be provided by the upper-layer parameter tdd-UL-DL-ConfigurationCommon. The UL slot may be provided by the higher-layer parameter tdd-UL-DL-ConfigurationDedicated. The UL slot may also be provided by the higher-layer parameter tdd-UL-DL-ConfigurationCommon. The UL slot may be provided by the higher-level parameter tdd-UL-DL-ConfigurationDedicated.

[0226] The DL symbol may be an OFDM symbol set or indicated for the downlink in time-division duplexing. The DL symbol may be an OFDM symbol set or indicated for PDSCH or PDCCH. The DL symbol may be provided by the upper layer parameter tdd-UL-DL-ConfigurationCommon. The DL symbol may be provided by the upper layer parameter tdd-UL-DL-ConfigurationDedicated. The DL slot is an upper layer The tdd-UL-DL-ConfigurationCommon may provide the DL slots above The stratum parameter tdd-UL-DL-ConfigurationDedicated may be provided.

[0227] A flexible symbol may be an OFDM symbol within a certain period that is not set or indicated as a UL symbol or a DL symbol. The period may be the period given by the higher-level parameter dl-UL-TransmissionPeriodicity. The flexible symbol is for PDSCH, PDCCH, PUSCH, PUCCH, or PRACH. This may be a setting or an OFDM symbol as instructed.

[0228] The upper-level parameter tdd-UL-DL-ConfigurationCommon is for each of one or more slots. The parameter may set either a UL slot, a DL slot, or a special slot. The upper-level parameter tdd-UL-DL-ConfigurationDedicated may set either a UL symbol, a DL symbol, or a flexible symbol for each of the one or more slots. tdd-UL-DL-ConfigurationCommon may be a common upper-level parameter. tdd-UL-DL-ConfigurationDedicated may be a dedicated upper-level parameter. One or more slots Setting either a UL slot, a DL slot, or a special slot for each slot is equivalent to setting a TDD pattern or slot format. That's good too.

[0229] PUSCH-Config may be a dedicated upper-layer parameter. PUSCH-ConfigCommon may be a common upper-layer parameter. PUSCH-Config may be set for each BWP for PUSCH transmission. PUSCH-Config may include multiple upper-layer parameters related to PUSCH transmission. PUSCH-Config may be a UE-specific setting. For example, terminal device 1A in a single cell, Furthermore, the PUSCH-Config for terminal device 1B, terminal device 1C, or the multiple higher-layer parameters included in PUSCH-Config may be different. PUSCH-ConfigCommon is for PUSCH transmission It may be set for each BWP. PUSCH-ConfigCommon may include multiple higher-layer parameters related to PUSCH transmission. PUSCH-ConfigCommon may be cell-specific settings. For example, PUSCH-ConfigCommon for terminal devices 1A, 1B, and 1C in a single cell may be common. For example, PUSCH-ConfigCommon may be based on system information. It's okay to give it that way.

[0230] pusch-TransCoherence is a subset of the uplink codebook for PUSCH transmission. Ports may be defined. A UE that indicates support for a partially coherent codebook subset may also support a non-coherent codebook subset. A UE that indicates support for a fully coherent codebook subset may also support both partially coherent and non-coherent codebook subsets.

[0231] pusch-TransCoherence-r18 is a subset of the uplink codebook for PUSCH transmission. Support may be defined for 2ports partial coherent codebook subset support The UE that indicates the port may also support a non-coherent codebook subset. 4ports A UE that demonstrates support for a partial coherent codebook subset may also support 2-port partial coherent and non-coherent codebook subsets. A UE that demonstrates support for a fully coherent codebook subset may also support 4-port partial coherent, 2-port partial coherent, and non-coherent codebook subsets. push-TransCoherence-r18 may be used as a UE capability to support 8Tx transmission.

[0232] pusch-TransCoherence-r18 is a subset of the uplink codebook for PUSCH transmission. Support may be defined. A UE that indicates support for a non-coherent codebook subset may only support the non-coherent codebook subset. 2ports partial A UE that indicates support for a coherent codebook subset may only support a 2-port partial coherent codebook subset. UE, which demonstrated support for subsets, has 4ports partial coherent codebook subsets. Only support for the fully coherent codebook subset is permitted. A UE that indicates support for a fully coherent codebook subset may only support the fully coherent codebook subset.

[0233] At least two transmission methods may be supported for PUSCH. For example, codebook-based transmission may be one of the transmission methods for PUSCH. For example, non-codebook-based transmission may be one of the transmission methods for PUSCH. The upper layer parameter may provide either codebook transmission or non-codebook transmission. For example, if 'codebook' is set for the upper layer parameter, terminal device 1 may be configured for codebook transmission. For example If 'nonCodebook' is set for the upper-layer parameter, terminal device 1 may be configured to send non-codebook messages. The upper-layer parameter may be txConfig. The upper-layer parameter may be usage. For example, if the upper-layer parameter is not set... In this case, terminal device 1 does not need to expect that it will be scheduled according to either DCI format 0_1 ​​or DCI format 0_2. If PUSCH is scheduled according to DCI format 0_0, the transmission of PUSCH may be based on at least one antenna port.

[0234] In codebook transmissions, PUSCH may be scheduled by DCI format. The DCI format may be any of DCI format 0_0, DCI format 0_1, or DCI format 0_2. In codebook transmissions, PUSCH may be set to be transmitted semi-statically. 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 the SRI (SRS Resource indicator), TPMI (Transmitted Precoding Matrix Indicator), and Transmission rank (or rank). For example, the SRI may be the DCI fee of one or two SRS resource indicators. It may be provided by Rudo. The DCI field indicating the SRI is the first SRI field and It may also be called a second SRI field. For example, TPMI is one or two precodes. The precoding information may be provided by the DCI field. For example, the transmission rank may be provided by the DCI field for the number of layers (number of transmission layers). i. The fields indicating the TPMI may be referred to as the first TPMI field and the second TPMI field. The SRI may be provided by a first upper-layer parameter. The TPMI and transmit rank may be provided by a second upper-layer parameter. The first upper-layer parameter may be srs-ResourceIndicator or srs-ResourceIndicator2. The second upper-layer parameter may be precodingAndNumberOfLayers or precodingAndNumberOfLayers2. That's fine.

[0235] The SRS resource set applied to PUSCH may be determined based on higher-level parameters. PUSCH is scheduled according to DCI format 0_1 ​​or DCI format 0_2. It may also be set to srs-ResourceSetToAddModList or srs-ResourceSetToAddModeListDCI-0-2. The higher-level parameter may also be a higher-level parameter set in SRS-Config.

[0236] If the upper-level parameter usage is set to 'codebook', then one or two SRS resource sets will be srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2 The higher-level parameter usage may be set in the higher-level parameter SRS-ResourceSet.

[0237] 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 the precoder. The precoder has v It may be applied across layers. If multiple SRS resources are configured, one SRS resource may be selected by the SRI. The transmit precoder (precoder) may be selected from the codebook (uplink codebook). For example, the codebook may have the number of antenna ports. The number of antenna ports is determined by the upper layer parameter nrofSRS-Ports and They may be the same. If the upper-level parameter txConfig is set to 'codebook', terminal device 1 may have at least one SRS resource configured. The indicated SRI is determined by the SRI. This may also relate to the transmission of SRS resources that are identified as such.

[0238] If two SRS resource sets are configured, one or two SRIs and one or two TPMIs are , or may be given by the DCI field. For example, the DCI field may be the SRS resource index The DCI field may be either or both of the DCI fields for the indication and the DCI fields for the precoding information and the number of layers. Terminal device 1 may apply the indicated SRI and TPMI to one or more PUSCH iterations. The TPMI is based on the code point of the SRS resource set indication. It may be used to indicate a recorder. The precoder may be applied to layers 0 through v-1. The precoder may correspond to an SRS resource selected by the SRI. Multiple SRS resources may be set for an applicable SRS resource set. In one or two TPMIs, the transmit precoder (precoder) may be selected from the codebook (uplink codebook). When two SRIs are indicated, terminal device 1 indicates It can be expected that the number of antenna ports for the two SRS resources being configured is the same. The number of antenna ports may be provided by higher-layer parameters.

[0239] In codebook transmission, terminal device 1 may determine a codebook subset. For example, the codebook subset may be determined based at least on TPMI. The codebook subset may also be determined in response to the reception of a certain upper-layer parameter. This upper-layer parameter may be codebookSubset, codebookSubset-r18, or codebookSubsetDCI-0-2. This upper-layer parameter may also be determined based at least on the number of SRS ports. For example, if the number of SRS ports is 4 or less, this upper-layer parameter may be codebookSubset or codebookSubsetDCI-0-2. If the number of ts is greater than 4, one of the upper layer parameters may be codebookSubset-r18. A certain upper-level parameter can be set to any of the following: 'fullyAndPartialAndNonCoherent', 'partialAndNonCoherent', 'nonCoherent', 'fullyCoherent', 'partialCoherent', '4portsPartialCoherent', or '2portsPartialCoherent'. For example, if at least one upper-level parameter is set to 'partialAndNonCoherent' In this case, the codebook subset associated with a 2-port SRS resource (an SRS resource with 2 ports) may be 'nonCoherent'. For example, a codebook may contain at least one SRS resource with 4 ports and at least one SRS resource with 2 ports. For example, if at least one upper-level parameter sets '4portsPartialCoherent' If so, the codebook subset associated with a 4-port SRS resource (an SRS resource with 4 ports) may be 'fullyAndPartialAndNonCoherent'. For example, at least If a higher-level parameter is set to '2portsPartialCoherent', the codebook subset associated with 2-port SRS resources (SRS resources with 2 ports) may also be 'partialAndNonCoherent'. For example, the codebook may include at least one SRS resource with 8 ports and at least one SRS resource with 4 ports.

[0240] If terminal device 1 reports UE capability for 'partialAndNonCoherent' transmission, terminal device Placement 1 does not need to expect that a subset of codebooks with 'fullyAndPartialAndNonCoherent' will be set.

[0241] If terminal device 1 reports UE capability for 'nonCoherent' transmission, terminal device 1 does not need to expect that a subset of codebooks containing 'fullyAndPartialAndNonCoherent' or 'partialAndNonCoherent' will be configured.

[0242] If terminal device 1 reports UE capability for 'fullyCoherent' transmission, terminal device 1 does not need to expect that a subset of codebooks with 'partialCoherent' or 'nonCoherent' will be configured.

[0243] If terminal device 1 reports UE capability for 'partialCoherent' transmission, terminal device 1 does not need to expect that a subset of codebooks containing 'fullyCoherent' or 'nonCoherent' will be configured.

[0244] If terminal device 1 reports UE capability for 'nonCoherent' transmission, terminal device 1 does not need to expect that a subset of codebooks with 'fullyCoherent' or 'partialCoherent' will be configured.

[0245] If terminal device 1 reports a UE capability of 'fully Coherent' transmission, terminal device 1 has '2portsPartialCoherent', '4portsPartialCoherent', or 'nonCoherent'. You don't need to expect a subset of codebooks to be set.

[0246] When terminal device 1 reports UE capability for sending '4portsPartialCoherent', terminal device Placement 1 does not need to expect that a subset of codebooks with 'fullyCoherent', '2portsPartialCoherent', or 'nonCoherent' will be set.

[0247] When terminal device 1 reports UE capability for sending '2portsPartialCoherent', terminal device Placement 1 does not need to expect that a subset of codebooks with 'fullyCoherent', '4portsPartialCoherent', or 'nonCoherent' will be set.

[0248] If terminal device 1 reports a UE capability of 'nonCoherent' transmission, terminal device 1 has 'fullyCoherent', '4portsPartialCoherent', or '2portsPartialCoherent'. You don't need to expect a subset of codebooks to be set.

[0249] If the number of antenna ports indicates that the maximum number of SRS antenna ports to be configured is 2, terminal device 1 does not need to expect that a higher-layer parameter set to 'partialAndNonCoherent' is configured. The higher-layer parameter may be codebookSubset or codebookSubsetForDCI-Format0-2. The number of antenna ports may also be determined by the higher-layer parameter nrofSRS-Ports.

[0250] The number of antenna ports is limited to 2 or 4, which is the maximum number of SRS antenna ports that can be configured. When this instruction is given, terminal device 1 does not need to expect that the upper layer parameter set to 'fullyCoherent' is set. The upper layer parameter may be codebookSubset-r18 or codebookSubsetForDCI-Format0-2-r18. The number of antenna ports may be determined by the upper layer parameter nrofSRS-Ports.

[0251] If the number of antenna ports indicates that the maximum number of SRS antenna ports to be set is 2, then terminal device 1 is set to 'fullyCoherent' or '4portsPartialCoherent'. You do not need to expect that the higher-layer parameters will be set. The higher-layer parameters may be codebookSubset-r18 or codebookSubsetForDCI-Format0-2-r18. The number of antenna ports may be determined by the higher-layer parameter nrofSRS-Ports.

[0252] If the number of antenna ports indicates that the maximum number of SRS antenna ports to be set is 4, then terminal device 1 is set to 'fullyCoherent' or '2portsPartialCoherent'. You do not need to expect that the higher-layer parameters will be set. The higher-layer parameters may be codebookSubset-r18 or codebookSubsetForDCI-Format0-2-r18. The number of antenna ports may be determined by the higher-layer parameter nrofSRS-Ports.

[0253] In codebook submission, one SRS resource may be determined from the SRS resource set based on the SRI, except when the first upper-level parameter is set to 'fullpowerMode2'. The maximum number of SRS resources to be set for codebook submission may be 2. The higher-level parameter may be ul-FullPowerTransmission. DCI may instruct the transmission of SRS resources. For example, if aperiodic SRS is configured, DCI may The SRS request field may instruct the transmission of a non-periodic SRS resource. Terminal device 1 does not need to expect that the first upper-layer parameter, set to 'fullpowerMode1', and the second upper-layer parameter, set to 'fullAndPartialAndNonCoherent', will be set.

[0254] Terminal device 1 uses DCI format or SRS as instructed by higher-layer parameters. The same one or more antenna ports are used as one or more SRS ports in the source. You may also send a PUSCH signal. For example, the SRS port is an antenna port for sending PUSCH signals. It may be the same as the other. The DMRS antenna port may be determined according to the DMRS port ordering.

[0255] If multiple SRS resources are configured by an SRS resource set, terminal device 1 will... You can expect the upper-layer parameter nrofSRS-Ports to have the same value for your SRS resources. The SRS resource set is the upper-layer parameter nrofSRS-Ports which has 'codebook' set. The upper-level parameter SRS-ResourceSet may also have a meter usage.

[0256] When 'fullpowerMode2' is set for the upper-level parameter, one or more SRS resources with the same or different number of SRS ports in a single SRS resource set It may be set. If 'fullpowerMode2' is set for the higher-level parameter, Up to two different spatial relations may be set for all SRS resources in a single SRS resource set. If 'fullpowerMode2' is set for the higher-level parameter, up to two or four SRS resources may be set in a single SRS resource set. Also, up to eight SRS resources may be set in a single SRS resource set. The SRS resource set is set to 'codebook'. It may also be an SRS resource set with a higher-level parameter, `usage`.

[0257] For non-codebook submissions, PUSCH is DCI format 0_0, DCI format 0_1, or , scheduling may be done according to DCI format 0_2. Terminal device 1 may determine the precoder and transmit rank of 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 DCI. This may also be the case. For example, SRI may be given by a higher-level parameter. The SRS resource set applied to PUSCH may be defined by an entry in the higher-level parameter. The upper-level parameter may be srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2.

[0258] Terminal device 1 may use one or more SRS resources for SRS transmission. The maximum number of SRS resources in a single SRS resource set may be transmitted to base station device 3 as UE capability. SRS resources may be configured for simultaneous transmission of the same OFDM symbol. Multiple SRS resources transmitted simultaneously may occupy the same resource block. Each SRS resource may have one SRS port configured. One or two SRS resource sets may be configured in the upper-level parameter srs-ResourceSetToAddModList, where the upper-level parameter usage in the upper-level parameter SRS-ResourceSet is set to 'nonCodebook'. If two SRS resource sets are configured, one or two SRIs may be provided by the DCI field. The DCI field may be the DCI field of the two SRS resource directives.

[0259] Terminal device 1 may apply the instructed SRI to one or more PUSCH repetitions. For example, according to the SRS resource set of the PUSCH repetition, terminal device 1 may apply the instructed SRI to one Alternatively, it may be applied to multiple PUSCH iterations. Set for non-codebook submission. The maximum number of SRS resources per SRS resource set may be 4. The maximum number of SRS resources per SRS resource set configured for transmission is 8, even if Good. Each of the one or two SRIs indicated is an SRS resource identified by the SRI. This may also relate to the latest transmission of the SRS resources in the set. The SRS transmission may precede the PDCCH that transmits the SRI. A different number of SRS resources may be set in the two SRS resource sets. Terminal device 1 does not need to expect this.

[0260] Multiple PDCCH candidates (PDCCH candidate(s)) are selected based on the upper-level parameters. When related to a set of search regions, one PDCCH candidate is used. This one PDCCH candidate has two Among the PDCCH candidates, the one that starts earlier may also be selected. The upper-level parameter may be searchSpaceLinking.

[0261] For non-codebook transmissions, the UE may compute a precoder. For example, a precoder used for SRS transmissions may be computed based on a measurement of the NZP CSI-RS resource. One NZP CSI-RS resource may be configured for one set of SRS resources. For example, one SRS resource set is a higher-level parameter set to 'nonCodebook'. It may also be an SRS resource set with a meter.

[0262] If a non-periodic SRS resource set is configured, the NZP-CSI RS may be indicated via the SRS request field. The SRS request field is DCI format 0_1, DCI format It may be one of the DCI fields in Mat 0_2, DCI Format 1_1, and DCI Format 1_2. The first upper layer parameter is aperiodic SRS The triggering state may indicate the association between the SRS resource set. The first upper-layer parameter, the SRS resource to be triggered, srs-ResourceSetId, and csi-RS may be set in the upper-layer parameter SRS-ResourceSet. The upper-layer parameter csi-RS may indicate NZP-CSI-RS-ResourceId. The upper-layer parameter SRS-ResourceSet related to the SRS request may be defined by an entry in a list that is an upper-layer parameter. The list that is an upper-layer parameter may be the upper-layer parameter srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2. Terminal device 1 does not need to expect to update the precoding information (SRS precoding information). For example, if the gap from the last OFDM symbol of the received non-periodic NZP-CSI-RS resource to the first OFDM symbol of the non-periodic SRS transmission is 42 OFDM symbols or less, terminal device 1 will not update the precoding information You don't need to expect updates.

[0263] If an aperiodic SRS is set up in relation to an aperiodic NZP CSI-RS resource, the presence of the CSI-RS is considered. This may be indicated by the SRS request field. If the value of the SRS request field is not '00', and the scheduling DCI is cross-carrier scheduling or cross-bandwidth part scheduling. If not used for scheduling, the presence of CSI-RS may be indicated by the SRS request field.

[0264] Terminal device 1 may perform one-to-one mapping. One-to-one mapping may be mapping from SRI to the DMRS port and the corresponding PUSCH layer. A number of PUSCH layers from 0 to v-1 may be provided, where v is the number of layers. The number of layers is set by the upper layer parameters. It is also possible that terminal device 1 transmits PUSCH using the same antenna port as the SRS port. Good. For example, an SRS port in an SRS resource indicated by an SRI may be indexed as pi = 1000 + i. For example, an SRS port in the (i+1)th SRS resource. The value of the SRS port may be pi. Also, the SRS port of the (i+1)th SRS resource may be pi. It may be indexed as follows. pi may also be 1000+i. That is, pi = 1000+i It's okay to have it.

[0265] In non-codebook submissions, spatial relation information (info) for SRS resources and the higher-level parameter SRS-ResourceSet for SRS resource sets are used. Terminal device 1 expects both the upper-level parameter associatedCSI-RS and the other parameter to be set. Waiting is not necessary. Spatial relation information may be determined by higher-level parameters. Spatial relation information may also be the higher-level parameter `spatialRelationInfo`. (Non-codebook) During transmission, if at least one SRS resource is configured in an SRS resource set with a higher-level parameter set to 'nonCodebook', terminal device 1 may be scheduled using DCI format 0_1 ​​or DCI format 0_2.

[0266] The CQI indicators and their interpretations for reporting CQIs may be presented based on a modulation scheme.

[0267] Terminal device 1, based on unlimited temporal and frequency observation intervals, determines the best CQI index that satisfies the following conditions for each CQI value reported in the uplink slot n. The following can be derived: the modulation scheme, target coding rate, and transport block corresponding to the CQI index. A combination of sizes creates a downlink physical resource block called a CSI reference resource. A single PDSCH transport block occupying a group of blocks is a transport block error detection. The condition may be that the reception rate does not exceed a certain limit.

[0268] The higher-level parameter timeRestrictionForChannelMeasurements is set to "notConfigured". If specified, terminal device 1 may derive channel measurements for calculating the CSI value reported in UL slot n based solely on NZP CSI-RS, which is not slower than the CSI reference resource associated with the CSI resource setting.

[0269] If the higher-level parameter timeRestrictionForChannelMeasurements in CSI-ReportConfig is "Configured", terminal device 1 will use the latest NZP CSI-RS related to CSI resource settings and CSI reference Channel measurements for CSI calculations, reported in UL slot n, may be derived based only on opportunities where they are not slower than the illumination resource.

[0270] The upper-level parameter timeRestrictionForInterferenceMeasurements is "notConfigured" If set to "", terminal device 1 may derive interference measurements for calculating the CSI value reported in UL slot n based only on CSI-IM and / or NZP CSI-RS, so as not to be slower than the CSI reference resource associated with the CSI resource setting.

[0271] If the upper-level parameter timeRestrictionForInterferenceMeasurements of CSI-ReportConfig is "Configured", terminal device 1 may derive interference measurements to calculate the CSI value to report in UL slot n based on the latest CSI-IM and / or NZP CSI-RS opportunity for interference measurement related to the CSI resource setting, which is no slower than the CSI reference resource.

[0272] For each subband index s, a 2-bit subband difference CQI may be defined as follows: Subband offset level (s) = Subband CQI index (s) - Wideband CQI index INDEX

[0273] The combination of modulation scheme and transport block size is CQI indexed in the following cases. It may also be compatible with ks. According to the determination of the transport block size, CSI reference resource If the signal can be signaled for transmission on a PDSCH, and the modulation scheme is indicated by the CQI index, and the combination of transport block size and modulation scheme is applied to the reference resource, the effective channel coding rate closest to the coding rate indicated by the CQI index will be obtained. It may be done. There are multiple combinations of transport block size and modulation scheme, CQI If the effective channel coding rate is close to the coding rate expressed by the exponential, then only the combination with the smallest transport block size among those combinations may be relevant.

[0274] If terminal device 1 has two antenna ports and the upper layer parameter codebookType is set to "typeI-SinglePanel", then each PMI value corresponds to the codebook index as follows: It may be accepted. Terminal device 1 sets the upper-layer parameter twoTX-CodebookSubsetRestriction. The bitmap parameter twoTX-CodebookSubsetRestriction may form a bit sequence a5, ..., a1, a0 where a0 is the LSB and a5 is the MSB. A bit value of 0 may indicate that the PMI report is not allowed to correspond to the precoder associated with that bit. Bits 0 through 3 are associated with codebook indices 0 through 3 respectively, with a layer count of 1. Layers 4 and 5 may be associated with codebook indexes 0 and 1, respectively, which have a layer count of 2. .

[0275] If terminal device 1 has four or more antenna ports and the upper layer parameter codebookType is set to "typeI-SinglePanel", then each PMI or TPMI value may correspond to a codebook index as follows: When the number of layers v ≠ {2, 3, 4}, each PMI value corresponds to one of three codebook indexes i 1,1 i 1,2 It may also support i2. When the number of layers v={2,3,4}, each PMI value corresponds to four codebook index i 1,1 i 1,2 i 1,3 It may also correspond to i2. The composite codebook index i1 is i 1,1 i 1,2 i 1,3 It may consist of part or all of the above.

[0276] k1 and k2 are i 1,3 Based on the number of layers v and the antenna configurations N1 and N2 of terminal device 1, 0 or N1 and N2 may be determined as multiples of O1 and O2. Here, N1 and N2 may be the number of horizontal and vertical antennas arranged on the antenna panel of terminal device 1. Also, O1 and O2 are terminal devices The number of oversampling steps may be 1 for the horizontal and vertical beam sweep steps. The supported combinations of (N1,N2) and (O1,O2) are the number of CSI-RS ports P of terminal device 1. CSI-RS It may be decided based on this.

[0277] The values ​​of N1 and N2 may be set by the higher-layer parameters n1-n2. Number of CSI-RS ports P is CSI-RS This may be given as 2N1N2. If the value of N2 is 1, terminal device 1 is i 1,2 = 0 Using i 1,2 You don't need to report it.

[0278] The bitmap parameters n1-n2 are such that a0 is the LSB, and a Ac-1 bit string a is the MSB. Ac-1 ,…,a1,a0 may be formed. A bit value of 0 may indicate that the PMI report is not allowed to correspond to any precoder associated with that bit. The number of bits is Ac=N1O1N2O2 It may also be given as follows: Bit a, except when the number of layers v ∈ {3, 4} and the number of antenna ports is 16, 24, or 32. N2O2,l+m is, quantity v l,m All precodes based on l=0,...,N1O1-1, m=0,...,N2O2-1 It may be associated with Da. If the number of layers v ∈ {3, 4} and the number of antenna ports is one of 16, 24, or 32, then bit a (N2O2(2l-1)+m)modN1O1N2O2 ,a N2O2(2l)+m and a N2O2(2l+1)m teeth Each, quantity v l,m Based on l=0,…,N1O1-1 and m=0,…,N2O2-1, all precoders may be associated. If one or more of the associated bits are zero, the PMI report is v l,m It does not need to support any precoder based on [the specified format].

[0279] If the upper-level parameter codebookType is set to "typeI-SinglePanel", then The tomap parameter typeI-SinglePanel-ri-Restriction may form a bit sequence r7, ..., r1, r0 where r0 is the LSB and r7 is the MSB. i If i ∈ {0, 1, ..., 7}, the PMI and RI reports do not need to correspond to any precoder associated with layer v = i + 1.

[0280] If the upper layer parameter reportQuantity is set to "cri-RI-i1-CQI", then bit The map parameter typeI-SinglePanel-codebookSubsetRestriction-i2 is such that b0 is the LSB and b 15 b is the MSB 15 A bit sequence of ,…,b1,b0 may be formed. Bit b i is a codebook It may be associated with the precoder corresponding to index i2=i. i If is 0, a randomly selected precoder for CQI calculation will use bit b. i It does not need to support any associated precoders.

[0281] The precoding matrix W is the number of CSI-RS ports P. CSI-RS and quantity φ n , θ p u m , v l,m ,v~ l,m It may be determined based on part or all of l, m, n, p. Also, each of the quantities may be determined based on part or all of l, m, n, p, and l, m, n, p may be part or all of i1 and i2. It may be decided based on the department.

[0282] If terminal device 1 has eight or more antenna ports and the upper layer parameter codebookType is set to "typeI-MultiPanel", then N g The values ​​of N1 and N2 may be set by the upper layer parameters ng-n1-n2. Number of CSI-RS ports P CSI-RS is 2N g It may be given as N1N2. Support reru (N) g The combinations of (N1,N2) and (O1,O2) correspond to the number of CSI-RS ports P of terminal device 1. CSI-RS It may be decided based on N. g If = 2, then codebookMode may be set to 1 or 2. g If = 4, then codebookMode may be set to 1. Here N g The antenna of terminal device 1 It could also be the number of panels that make up the flannel.

[0283] The bitmap parameters ng-n1-n2 are such that a0 is the LSB and a Ac-1 bit string a where the MSB is Ac-1 , …, a1, a0 may be formed. If the bit value is 0, it may indicate that the PMI report cannot correspond to any precoder associated with that bit. The number of bits Ac is given as N1O1N2O2. It may be obtained. bit a N2O2l+m is quantity v l,m , may be associated with all precoders based on l=0,...,N1O1-1 and m=0,...,N2O2-1. The bitmap parameter ri-Restriction may form a bit sequence r3,...,r1,r0 where r0 is the LSB and r3 is the MSB. i If i ∈ {0, 1, ..., 3}, then the PMI and RI reports also correspond to any precoder associated with layer v = i + 1. It's not necessary to do so.

[0284] Each PMI value may correspond to codebook indices i1 and i2. When the number of layers v=1, i1 is i1,1 i 1,2 i 1,4 It may consist of part or all of. If the number of layers v ∈ {2, 3, 4}, then i1 is i 1,1 i 1,2 i 1,3 i 1,4 It may consist of part or all of the following. Here, v is the RI value It may be related.

[0285] CodebookMode is set to 1, N g If = 2, i 1,4 is i 1,4,1 It may consist of the following: codebookMode is set to 1, N g If i = 4, 1,4 is i 1,4,1 i 1,4,2 i 1,4,3 It may consist of part or all of the following. If codebookMode is set to 2, i 1,4 is i 1,4,1 i 1,4,2 It may consist of part or all of, and i2 is i 2,0 i 2,1 i 2,2 Part of or It may consist of all of them.

[0286] k1 and k2 are i 1,3 , number of layers v and antenna configuration N of terminal device 1 g Based on N1 and N2, it may be determined as 0 or a multiple of O1 and O2. If N2=1, terminal device 1 is i 1,2 Use only =0 shi, i 1,2 You do not need to report it.

[0287] Precoding Matrix W (v) l,m,p,n is W 1,2,1 l,m,p,n , W 2,2,1 l,m,p,n , W 1,4,1 l,m,p,n , W 2,4,1 l,m,p,n , W1,2,2 l,m,p,n , W 2,2,2 l,m,p,n Composed of part or all of This is also acceptable. Here, W 1,2,1 l,m,p,n , W 2,2,1 l,m,p,n , W 1,4,1 l,m,p,n , W 2,4,1 l,m,p,n , W 1,2,2 l,m,p,n , W 2,2,2 l,m,p,n The number of CSI-RS ports is P CSI-RS and quantity φ n a p , b n u m , v l,m It may be determined based on part or all of the following. Also, each of the quantities may be part of l, m, n, p. Or it may be determined based on all of them, and the l, m, n, p may be based on some or all of i1 and i2 It may be determined by this. Here, p may consist of some or all of p1, p2, and p3. n may consist of some or all of n0, n1, and n2.

[0288] The precoding matrix W is determined based on at least some or all of i1 and i2. It may be set. i1 is i 1,1 i 1,2 i 1,3 i 1,4 It may consist of part or all of the above. 1,4 is i 1,4,1 i 1,4,2 i 1,4,3 i2 may consist of part or all of i 2,0 i 2,1 i 2,2 It may consist of part or all of the above.

[0289] A codebook containing a precoding matrix based on at least some or all of the above i1 and i2 may be called a DFT-based codebook. A codebook based on PMI information may also be called a DFT-based codebook. A DFT-based codebook may be a codebook type that determines the precoding matrix on an expression basis. A DFT-based codebook may be part or all of a Type I Single-Panel Codebook or a Type I Multi-Panel Codebook. A DFT-based codebook may be part or all of i1 and i2 DFT-based codebooks may include a precoding matrix determined at least based on the following: Type I Single-Panel Codebook, Type I Multi-Panel Codebook, Type II Codebook, Type II Port Selection Codebook, Enhanced Type II Codebook, Enhanced This may be part or all of the Type II Port Selection Codebook or the Further Enhanced Type II Port Selection Codebook.

[0290] The DFT-based codebook may be set by the RRC parameter. Using a codebook as an upstream link codebook is configured by the RRC parameter. It is permissible to use a DFT-based codebook as an uplink codebook. This may also be indicated by setting the parameter to 'DFT-based codebook'. Using a codebook as an upstream link codebook may be indicated by including 'DFT-based codebook' in the RRC parameter that specifies the codebook type. 'DFT-based codebook' may be some or all of 'type1', 'typeI', 'typeI-SinglePanel', 'typeI-MultiPanel', 'type2', 'typeII', 'typeII-PortSelection', 'typeII-r16', 'typeII-Portselection-r16', 'typeI-SinglePanel-r17', 'typeI-SinglePanel2-r17', or 'typeII-PortSelection-rl7'.

[0291] Some or all of the maximum values ​​of O1 and O2 may be indicated as the phase calibration capability of the terminal device. Some or all of O1 and O2 may be indicated as the phase calibration capability of the terminal device.

[0292] The antenna section of terminal device 1 may consist of one or more antennas. The antenna section may consist of one or more antenna groups. It may consist of one or more antennas that are coherent with each other. An antenna group may be indicated as a coherent group or coherence group. An antenna group may be related to an antenna panel. The number of antenna groups is N. g It may be indicated as follows: The number of antenna groups may be indicated as the number of antenna panels. The number of antenna groups may be notified as terminal capability information. The number of antenna groups may be set by some or all of the RRC parameters, MAC CE, and DCI.

[0293] Number of antenna groups: N g This may also relate to terminal capability information. Number of antenna groups N gThis may also relate to the terminal's coherence capability. Number of antenna groups N g This may also relate to a subset of codebooks. For example, N g =1 may relate to fullyCoherent, fullyAndPartialAndNonCoherent, or part or all of it. For example, N g =1,2,4 may relate to fullyCoherent, fullyAndPartialAndNonCoherent, or part or all of them. For example, N g =2,4 may relate to some or all of partialCoherent and partialAndNonCoherent. For example, N g =2 may relate to some or all of partialCoherent, 4portsPartialCoherent, 2portsPartialCoherent, or partialAndNonCoherent. For example, N g =4 may relate to some or all of partialCoherent, 2portsPartialCoherent, or partialAndNonCoherent. For example, N g =8 may also be related to noncoherent.

[0294] The first precoding matrix is ​​one or more second precoding matrices It may consist of part or all of the RIX. Below, transmission using n antenna ports. Precoding matrix for W nTx This is shown as follows: For example, W 8Tx is 1 or multiple The number W 4Tx It may consist of W. 8Tx is one or more W 2Tx Even if it is composed of Good. For example, W 8Tx is one or more W 2Tx and one or more W 4Tx It may consist of W. 4Tx is one or more W 2TxIt may consist of the following:

[0295] The first precoding matrix W1 is one or more second precoding matrices It may consist of a part of the phase control information φ between the TRICKS W2 and W2. Multiple W2s may be the same or different. φ is the horizontal phase control information φ H and vertical Phase control information φ V It may consist of part or all of the following. For example, a precoding matrix W for transmission using 8 antenna ports. 8Tx A precoding matrix W for transmission using two 4-antenna ports 4Tx When composed of W 8Tx =[W 4Tx φW 4Tx ] T It may be configured as follows: For example, a pre-coded transmission using four antenna ports Ning Matrix W 4Tx A precoding matrix W for transmission using two 2-antenna ports 2Tx When composed of W 4Tx =[W 2Tx φW 2Tx ] T It may be configured as follows: For example, a precoding matrix W for transmission using 8 antenna ports. 8Tx 4 2A Precoding matrix W for transmission using an antenna port 2Tx When composed of W 8Tx =[W 2Tx φ H W 2Tx 2φ H W 2Tx 3φ H W 2Tx ] T Ya W 8Tx =[W 2Tx φ H W 2Tx φ V W 2Tx φ H φ V W2Tx ] T It may be configured as follows.

[0296] W corresponds to the number of layers L. nTx is, W nTx,L It may also be expressed as follows: Here, n can be either 2 or 4. For example, W corresponding to the number of layers L. 4Tx is, W 4Tx,L It may also be expressed as follows. For example, W corresponds to the number of layers L. 2Tx is, W 2Tx,L It may also be expressed as W nTx,L is 1 or W corresponds to multiple layer counts L'. nTx,L’ It may be composed of the same as L. Here, L' is the same as L. The values ​​of L' may be different. L' may include some or all of L1, L2, L3, and L4. Example For example, W 4Tx,L is W 4Tx,L1 and W 4Tx,L2 It may consist of part or all of W. 4Tx,L =[W 4Tx,L1 W 4Tx,L2 It may also be expressed as ]. For example, W 4Tx,5 =[W 4Tx,3 W 4Tx,2 ], W 4Tx,6 =[W 4Tx,3 W 4Tx,3 ], W 4Tx,7 =[W 4Tx,4 W 4Tx,3 ], W 4Tx,8 =[W 4Tx,4 W 4Tx,4 It may also be expressed as ]. For example, W 2Tx,L is W 2Tx,L1 and W 2Tx,L2 and W 2Tx,L3 and W 2Tx,L4 It may consist of part or all of W. 2Tx,L =[W 2Tx,L1 W 2Tx,L2 It may also be expressed as ]. For example, W 2Tx,L =[W 2Tx,L1 W 2Tx,L2 W 2Tx,L3 It may also be expressed as ]. For example, W2Tx,L =[W 2Tx,L1 W 2Tx,L2 W 2Tx,L3 W 2Tx,L4 It may also be expressed as ]. For example, W 2Tx,3 =[W 2Tx,2 W 2Tx,1 ], W 2Tx,4 =[W 2Tx,2 W 2Tx,2 It may also be expressed as ]. For example, W 2Tx,5 =[W 2Tx,2 W 2Tx,2 W 2Tx,1 ], W 2Tx,6 =[W 2Tx,2 W 2Tx,2 W 2Tx,2 It may also be expressed as ]. For example, W 2Tx,7 =[W 2Tx,2 W 2Tx,2 W 2Tx,2 W 2Tx,1 ], W 2Tx,8 =[W 2Tx,2 W 2Tx,2 W 2Tx,2 W 2Tx,2 It may also be represented as ].

[0297] L1, L2, L3, and L4 may be the same or different values. L1, L2, L3, and L4 may be less than or equal to L. It may be the case that L1, L2, L3, and L4 include all combinations of values ​​1, 2, ..., L. For example, L1, L2, L3, and L4 may be some or all of 1, 2, ..., L. For example, L=2 In this case, L1, L2, L3, and L4 may be part or all of 1 and 2. For example, if L=3, L1, L2, L3, and L4 may be part or all of 1, 2, and 3. For example, if L=4, L1, L2, L3, and L4 may be part or all of 1, 2, 3, and 4. For example, if L=5, L1, L2, L3, and L4 may be part or all of 1, 2, 3, and 4. For example, if L=6, L1, L2, L3, and L4 may be part or all of 1, 2, 3, and 4. It may be a part or all of 1, 2, 3, 4. For example, if L=7, L1, L2, L3, L4 may be a part or all of 1, 2, 3, 4. For example, if L=8, L1, L2, L3, L4 may be a part or all of 1, 2, 3, 4.

[0298] W 4Tx,L1 and W 4Tx,L2 The TPMI index for part or all of may be indicated by one or both of the first TPMI field and the second TPMI field. For example, W 4Tx,L1 TPMI index for This may be indicated in the first TPMI field. For example, W 4Tx,L2 The TPMI index for is, It may also be indicated by the second TPMI field. W 2Tx,L1 and W 2Tx,L2 and W 2Tx,L3 and W 2Tx,L4 Part of also The TPMI index for all may be indicated by either or both of the first TPMI field and the second TPMI field. For example, W 2Tx,L1 and W 2Tx,L2 The TPMI index for may be indicated in the first TPMI field. For example, W 2Tx,L3 and W 2Tx,L4 The TPMI index for may be indicated in the second TPMI field. For example, W 2Tx,L1 and W 2Tx,L3 The TPMI index for may be indicated in the first TPMI field. For example, W 2Tx,L2 and W 2Tx,L4 The TPMI index for this is the second TPMI This may be indicated by a field.

[0299] φ may be determined at least based on the distance between the antenna groups or antenna panels of the terminal. H This refers to the horizontal direction between the antenna group or antenna panel of the terminal. It may be determined at least on the basis of distance. φV is the antenna group of the terminal or It may be determined based at least on the vertical distance between antenna panels. φ may be determined based at least on some or all of the terminal device capability information, channel status information, TCI state, spatial relationship information, and the number of SRS antenna ports.

[0300] A codebook containing a precoding matrix formed by a combination of the above multiple precoding matrices may be called a non-DFT-based codebook. A non-DFT-based codebook does not have to contain a DFT-based codebook. The codebook may consist of one or more W and one or more phase control information φ. i. A non-DFT-based codebook is one or more W 2Tx , W 4Tx , φ H , φ V Part of or It may consist of all of the above. A non-DFT-based codebook is based at least on the TPMI index. It may be decided accordingly.

[0301] The non-DFT-based codebook may be set by the RRC parameter. Using the non-DFT-based codebook as the uplink codebook may also be set by the RRC parameter. Using the non-DFT-based codebook as the uplink codebook This may be indicated by setting the RRC parameter to 'non-DFT-based codebook'. Using a non-DFT-based codebook as an uplink codebook means that the code The book type may also be indicated by including 'non-DFT-based codebook' in the RRC parameter that specifies the book type. 'non-DFT-based codebook' may also be 'type0'.

[0302] Figure 8 shows a precoding matrix and a transmission space filter according to one aspect of this embodiment. This figure shows an example of how to apply the method. In Figure 8, W is the precoding matrix, and F This shows the transmit space filter, and precoding for PUSCH is performed based on the precoding matrix W and the transmit space filter F. Also, the first precoding Matrix W1 and the first transmit space filter F1 correspond to the first uplink physical channel 8100, and the second precoding matrix W2 and the second transmit space filter F2 correspond to the second uplink physical channel 8101.

[0303] In Figure 8, vectors d1, d2, ..., d K Based on the precoding matrix W Precoding is performed, and vector x1, x2, ..., x M It may be converted to vectors d1, d2, ..., d K This may be PUSCH data with K layers. Vector x1, x2, ..., x M This may be the transmission data for the number of SRS antenna ports L. In this case, d1, d2, ..., d K From x1, x2, ..., x M to The transformation is obtained by multiplying by the precoding matrix W. The size of the Trix W may be determined based on the number of layers K and the number of SRS antenna ports M.

[0304] Also, vectors x1, x2, ..., x M Precoding based on the transmission space filter F is performed on the vector y1, y2, ..., y N It may be converted to the vector y1, y2, ..., y N This may also be transmission data for the number of physical antenna ports N on the transmitting side.

[0305] Figure 9 shows an example of the antenna layout of a terminal device 1 according to one aspect of this embodiment. 9001 shows two antenna elements with different polarizations, and 9002 shows the range of the antenna group. To indicate an enclosure. d H indicates the horizontal distance between antennas, and d V This indicates the vertical distance between the antennas. G-H indicates the horizontal distance between antenna groups, and d G-V This indicates the vertical distance between antenna groups.

[0306] Terminal device 1 is d H d V d G-H d G-V Information related to d may be notified. Terminal device 1 will H d V d G-H d G-V Information related to the terminal's capabilities may be notified as terminal capability information.

[0307] In the case of non-codebook submission, the precoding matrix W may be equal to the identity matrix. Good. In the case of codebook transmission, the precoding matrix W is a single antenna port. For single-layer transmission in the case of a TT, W=1 may be given. Otherwise, PUSCH will be scheduled The TPMI index is obtained from the DCI or higher-level parameters. This is also acceptable. If the upper-level parameter "txConfig" is not set, the precoding matrix W=1 may be used.

[0308] The antenna configuration of terminal device 1 may be given based on n1-n2-codebookSubsetRestriction, n1-n2-codebookSubsetRestriction-r16, and n1-n2-codebookSubsetRestriction-r18. .

[0309] Terminal device 1 may edit the terminal's capability information. Terminal device 1 may transmit (transfer) the terminal's capability information. Terminal device 1 receives a UECapabilityEnquiry from the network. At that time, you may edit and transfer the terminal's UE capability information. Furthermore, notification of terminal capability information may be provided in accordance with the procedure shown below.

[0310] If the network requires (additional) UE radio access capability information, RRC_CONNECTED The procedure for the terminal may then be initiated. The capabilities of the UE may only be acquired after the activation of AS security. The capabilities of the UE acquired before AS security is activated do not need to be transferred to the CN.

[0311] If terminal device 1 finds that the ue-CapabilityRAT-RequestList contains a UE-CapabilityRAT-Request with rat-Type set to nr, it will display the contents of the UECapabilityInformation message as follows: It may be set to . The ue-CapabilityRAT-ContainerList may contain a UE-CapabilityRAT-Container whose type is UE-NR-Capability and whose rat-Type is set to nr. supportedBandCombinationList, featureSets, and featureSetCombinations may also be included.

[0312] Terminal device 1 will check if the ue-CapabilityRAT-RequestList contains a UE-CapabilityRAT-Request with rat-Type set to eutra-nr and the UE supports (NG)EN-DC or NE-DC. In this case, the content of the UECapabilityInformation message may be set as follows: ue-CapabilityRAT-ContainerList should contain a type UE-MRDC-Capability and rat-Type eutra-nr It may include the configured UE-CapabilityRAT-Container. It may also include supportedBandCombinationList and featureSetCombinations.

[0313] Terminal device 1 may set the contents of the UECapabilityInformation message as follows if the ue-CapabilityRAT-RequestList contains a UE-CapabilityRAT-Request with rat-Type set to eutra and the UE supports E-UTRA. The ue-CapabilityRAT-ContainerList may contain a ue-CapabilityRAT-Container that, upon receipt, has type UE-EUTRA-Capability and rat-Type set to eutra.

[0314] If terminal device 1 contains a UE-CapabilityRAT-Request in ue-CapabilityRAT-RequestList with rat-Type set to utra-fdd and the UE supports UTRA-FDD, it may set the contents of the UECapabilityInformation message as follows: The ue-CapabilityRAT-Container may contain UE wireless access capabilities for UTRA-FDD with rat-Type set to utra-fdd.

[0315] Terminal device 1 segments the RRC message based on the received field rrc-SegAllowed. Encoding is enabled and encoded RRC messages support the maximum support of the PDCP SDU. If it is greater than is, set the content of the UECapabilityInformation message as follows. This may be done. The UL message segment transfer procedure may be initiated.

[0316] In cases other than those described above, terminal device 1 will interpret the contents of the UECapabilityInformation message as follows: You can also configure it as follows: Send a UECapabilityInformation message to the lower layer, and The procedure may terminate at this point.

[0317] Terminal device 1 is an NR or E-UTRA network related to nr, eutra-nr, or eutra. If capability is requested, the procedure may be called. This procedure may be called once for each requested rat-Type. Terminal device 1 queries the network with the same field and the same value. In all three UE capability containers, the feature set ID is the feature set, function Consistency may be ensured in the set combinations and band combinations. The UE capability container may be a field in the UE-CapabilityRequestFilterNR, UE-CapabilityRequestFilterCommon, and UECapabilityEnquiry messages.

[0318] Capability queries that do not use frequencyBandListFilter do not need to be supported.

[0319] In EN-DC, gNBs may require capabilities for RAT types nr and eutra-nr. Additionally, featureSets within UE-NR-Capability may be used, along with featureSetCombinations in UE-MRDC-Capability, to determine NR UE capabilities for supported MRDC band combinations. Similarly, eNBs may require capabilities for RAT types eutra and eutra-nr. Furthermore, featureSetsEUTRA within UE-EUTRA-Capability may be used, along with featuresSetCombinations in UE-MRDC-Capability, to determine E-UTRA UE capabilities for supported MRDC band combinations. The IDs used in featureSets may match the IDs referenced in featureSetCombinations across all three containers. Consistency requirements may mean that no undefined feature sets or feature set combinations exist.

[0320] If message size or list size constraints prevent the UE from including all feature sets and combinations of feature sets, it may be up to the UE implementation to decide which feature sets and combinations to prioritize.

[0321] Terminal device 1 uses the filter criteria of capabilityRequestFilterCommon (if included). According to this, the "band combination" consists only of the bands included in frequencyBandListFilter. You can also create a list of "candidates". Additionally, you can prioritize the frequencyBandListFilter. This is also acceptable. The priority setting would first include the combination of bands containing the first listed band, then the remaining combinations of bands containing the second listed band, and so on. Any method may be used. Here, for each band in the combination of bands, the band parameter may not exceed whichever of maxBandwidthRequestedDL, maxBandwidthRequestedUL, maxCarriersRequestedDL, maxCarriersRequestedUL, ca-BandwidthClassDL-EUTRA, or ca-BandwidthClassUL-EUTRA is received.

[0322] Terminal device 1 checks each band combination included in the list of "candidate band combinations" if the network (E-UTRA) includes the eutra-nr-only field, or If the requested rat-Type is eutra, the combination of NR-only bandwidths is "bandwidth combination". You may remove it from the list of "candidates".

[0323] While NR capability may be required by the E-UTRA network, the eutra-nr-only flag may be used to indicate that UE-NR-Capability does not include combinations of NR bands. In this case, the above procedure may remove all NR-dedicated band combinations from the candidate list, thereby also avoiding the inclusion of the corresponding feature set combinations and the following feature sets.

[0324] Terminal device 1 is considered to have the same capability as other combinations of bandwidth included in the list of "candidate bandwidth combinations", or this combination of bandwidth is generated by releasing at least one SCell or the uplink configuration of a SCell. In that case, you may remove the band combination from the list of "candidate band combinations".

[0325] Even if only the nr functionality is requested from the network, the E-UTRA band numbers may be included in the frequencyBandListFilter so that the UE includes all the feature sets required for the subsequently requested eutra-nr functionality. At this point in the procedure, the list of "candidate band combinations" is N All NR- and / or may include a combination of E-UTRA-NR bands. In the following procedure, Using the candidate list, the combinations of bands, combinations of feature sets, and feature sets reported in the requested capability container may be derived.

[0326] If the requested rat-Type is nr, terminal device 1 will add as many NR-only band combinations as possible from the list of "band combination candidates" to supportedBandCombinationList. You may include this from the first entry. Also, if an srs-SwitchingTimeRequest is received and SRS carrier switching is supported, for each band combination You may also include srs-SwitchingTimesListNR. In this case, you may set srs-SwitchingTimeRequested to true.

[0327] Terminal device 1 may include feature set combinations referenced from the corresponding band combinations included in supportedBandCombinationList in featureSetCombinations if the requested rat-Type is nr. Alternatively, it may compile the list of "feature set combination candidates" referenced from the list of "bandwidth combination candidates," excluding entries (feature set combination rows) with the same or lower capability.

[0328] Terminal device 1, when the requested rat-Type is nr and an uplinkTxSwitchRequest is received, In addition, from the list of "bandwidth combination candidates," only NRs that support UL TX switching are selected. The band combinations may be included in supportedBandCombinationList-UplinkTxSwitch from the first entry as much as possible. After this, when an srs-SwitchingTimeRequest is received If both are supported and SRS carrier switching is supported, then for each band combination... You may also include srs-SwitchingTimesListNR. In this case, you may set srs-SwitchingTimeRequested to true.

[0329] Terminal device 1, when the requested rat-Type is nr and an uplinkTxSwitchRequest is received, In addition, featureSetCombinations includes supportedBandCombinationList-UplinkTxSwitch. This may include feature set combinations referenced from the support band combinations.

[0330] This list of "candidate combinations of function sets" is not limited to combinations of the E-UTRA-NR band. The list may include combinations of feature sets used exclusively for NR. The list may be used to derive a list of NR feature sets referenced from combinations of feature sets in UE-NR-Capability and combinations of feature sets in the UE-MRDC-Capability container.

[0331] Terminal device 1 may include feature sets referenced from "Candidate combinations of feature sets" in featureSets if the requested rat-Type is nr. Also, maxBandwidthRequestedDL, maxBandwidthRequestedUL, maxCarriersRequestedDL, maxCarriersRequestedUL Feature sets with parameters exceeding either of the specified limits may be received or excluded.

[0332] If the requested rat-Type is eutra-nr, terminal device 1 may add as many E-UTRA-NR band combinations as possible from the list of "band combination candidates" to supportedBandCombinationList and / or supportedBandCombinationListNEDC-Only, in order from the first entry. Also, if an srs-SwitchingTimeRequest is received and the SRS carrier switching... If switching is supported, you may include srs-SwitchingTimesListNR and srs-SwitchingTimesListEUTRA for each band combination. In this case, you may set srs-SwitchingTimeRequested to true.

[0333] Terminal device 1, if the requested rat-Type is eutra-nr, will use featureSetCombinations. , feature set combinations referenced from the supported band combinations included in supportedBandCombinationList may be included in accordance with the previous section. Alternatively, the list of "feature set combination candidates" referenced from the list of "bandwidth combination candidates" may be compiled excluding entries (feature set combination rows) with the same or lower capability.

[0334] Terminal device 1 receives an uplinkTxSwitchRequest with the requested rat-Type being eutra-nr. If so, the supportedBandCombinationList-UplinkTxSwitch will display "Band combination candidates". From the list of ', select the NR-dedicated band combination that supports UL TX switching, first E You may include as much as possible from the ntris. Also, if an srs-SwitchingTimeRequest is received and SRS carrier switching is supported, for each band combination... You may also include srs-SwitchingTimesListNR. In this case, you may set srs-SwitchingTimeRequested to true.

[0335] Terminal device 1 receives an uplinkTxSwitchRequest with the requested rat-Type being eutra-nr. If so, add `supportedBandCombinationList-UplinkTxSwitch` to `featureSetCombinations`. This may include feature set combinations referenced from the support band combinations included in the list.

[0336] Terminal device 1, if the requested rat-Type is eutra, will select "Candidate bandwidth combinations". The list of "candidate feature set combinations" referenced from the list may be compiled by removing entries (feature set combination rows) that have the same or lower capabilities.

[0337] This list of "candidate feature set combinations" may include feature set combinations used for E-UTRA-NR band combinations. This list may be used to derive a list of E-UTRA feature sets referenced from feature set combinations within the UE-MRDC-Capability container.

[0338] If the requested rat-Type is eutra, terminal device 1 may include feature sets referenced from "candidate feature set combinations" (within UE-EUTRA-Capability) in featureSetsEUTRA. Additionally, feature sets for parameters exceeding ca-BandwidthClassDL-EUTRA or ca-BandwidthClassUL-EUTRA may be received or excluded.

[0339] Terminal device 1 has a requested rat-Type of nr and the eutra-nr-only field is network Unless otherwise specified, the received frequencyBandListFilter may be included in the appliedFreqBandListFilter field of the requested UE capability.

[0340] If the terminal device 1 has ue-CapabilityEnquiryExt in the network, it may include the received ue-CapabilityEnquiryExt in the receivedFilters field.

[0341] Multiple TRPs (Transmission Reception Points, or Transmit / Receive Points) are used. It may be done. The base station device 3 may consist of multiple TRPs (Multi-TRP). The terminal device 1 may be scheduled by two TRPs in one serving cell. In Multi-TRP, either single-DCI or multi-DCI operating mode may be used. In Multi-TRP, uplink control may be completed at the MAC layer and physical layer. In Multi-TRP, MAC Downlink control may be completed at the layer and physical layer. In Single-DCI mode, terminal device 1 may be scheduled by the same DCI for two TRPs. In Multi-DCI mode, terminal device 1 may be scheduled by independent DCIs from each TRP. In Multi-DCI mode, each TRP in a Multi-TRP may be identified by TRP information. That is, one TRP in a Multi-TRP may be identified by one TRP piece of information. stomach.

[0342] TRP information may be used to select one TRP. Additionally, an index of the CORESET resource pool may be associated with one Control Resource Set (CORESET). Terminal device 1 PUSCH based on the index of the CORESET resource pool. You may send it.

[0343] TRP information may also be a CORESET pool index. TRP information may also be associated with an index of a CORESET resource pool. For example, the first CORESET pool index The 'Kus' may also be related to the first TRP, and the second CORESET pool index may be related to the second TRP. The TRP information may also be associated with a pool of TCI states (or a pool index). The first one or more TCI states are associated with the pool of first TCI states. It may be associated with an index. The second one or more TCI states are the second TCI It may be associated with a pool index of states.

[0344] Multiple panels may be used. Terminal device 1 may consist of multiple panels (Multi-Panel). Terminal device 1 schedules two panels in one terminal device. This may be done. In a Multi-Panel configuration, either single-DCI or multi-DCI operating mode may be used. In a Multi-Panel or SDM scheme, uplink control may be completed at the MAC layer and the physical layer. In a Multi-Panel or SDM scheme, downlink control may be completed at the MAC layer and the physical layer. In Single-DCI mode, terminal device 1 may be scheduled by the same DCI for both panels. In Multi-DCI mode, terminal device 1 may be scheduled by an independent DCI for each panel. Multi-DCI In this mode, each panel in a Multi-Panel may be identified by its panel information. In other words, one panel in a Multi-Panel is identified by the information of one panel. That's good too.

[0345] Multiple transmission space filters may be used. Terminal device 1 has multiple transmission space filters. It may be configured. Terminal device 1 may send a PUSCH using the SDM scheme. In the SDM scheme, either single-DCI or multi-DCI operating mode may be used. In the MAC layer and physical layer, control of the uplink may be completed. In the SDM scheme, control of the downlink may be completed in the MAC layer and physical layer. In single-DCI mode, terminal device 1 is scheduled by the same DCI for two transmit space filters. This is also good. In Multi-DCI mode, terminal device 1 has an independent DCI for each transmit space filter. Therefore, scheduling may be performed. In Multi-DCI mode, each in the SDM scheme A transmit space filter may be identified by transmit space filter information. That is, one transmit space filter in an SDM scheme may be identified by one transmit space filter piece of information.

[0346] Panel information or transmit space filter information is selected from one panel or transmit space filter. It may be used for selection. Also, an index of the CORESET resource pool may be associated with one Control Resource Set (CORESET). Also, an index of the TCI state pool may be associated with one TCI state set. Also, an index of the spatial relationship information pool may be associated with one spatial relationship information set. It is also possible. Terminal device 1 is the index of the CORESET resource pool, the TCI state pool PUSCH based on some or all of the index of the spatial relation information pool. You may send it.

[0347] Panel information or transmission space filter information may also be CORESET pool indexes. i. Panel information or transmission space filter information is indexed in the CORESET resource pool. It may be associated with the first CORESET pool index, the first panel Alternatively, it may be related to the transmission space filter, and the second CORESET pool index is the second The panel information or transmit space filter information may also be related to the panel or transmit space filter. The panel information or transmit space filter information may also be a TCI state pool index. Filter information may be associated with an index in the TCI state pool. For example, One TCI state pool index is associated with the first panel or transmit space filter. However, the second TCI state pool index is the second panel or transmission space index. It may also be related to Ruta. Panel information or transmission space filter information may also be a spatial relation information pool index. Panel information or transmission space filter information may be associated with an index of the spatial relation information pool. For example, the first spatial relation information pool index may be associated with the first panel or transmission space filter, and the second spatial relation information pool index may be associated with the second panel or transmission space filter.

[0348] Terminal device 1 may have STxMP (Simultaneous Transmission with Multi Panel) applied to it. STxMP may be applied to one or both of the first uplink physical channel 8100 and the second uplink physical channel 8101. When STxMP is applied, terminal device 1 has the first The first uplink physical channel 8100 and the second uplink physical channel 8101 may transmit simultaneously, or both. If STxMP is applied, terminal device 1 may transmit the first uplink physical channel 8100 and the second uplink physical channel 8101 on the same time resources and the same frequency resource resources, where the time resources may be one or more OFDM symbols or slots, and the frequency resources may be one or more subcarriers or physical resource blocks. If STxMP is applied, the first The first CDM (Code Division Multiplexing) group of the first DMRS port directed for uplink physical channel 8100 is directed for the second uplink physical channel 8101 The second DMRS port may be different from the second CDM group. The first CDM group and the second CDM group are not expected to be the same. One or both of the ports may be indicated by the antenna port field in one DCI format. The first CDM group and the second CDM group may be indicated by the antenna port field. When STxMP is applied, the first uplink physical Channel 8100 and the second uplink physical channel 8101 correspond to a single precoding matrix. This may be done. One precoding matrix may be determined by the TPMI field in DCI format. When STxMP is applied, the first uplink physical channel 8100 This corresponds to the first TCI state, and the second uplink physical channel 8101 corresponds to the second This may correspond to the TCI state. The first TCI state and the second TCI state are indicated by the TCI (Transmission Configuration Indication) field in DCI format 1_1 / 1_2. This is also acceptable. When STxMP is applied, the first uplink physical channel 8100 is the first uplink The first uplink transmit space filter supports a UL Tx Spatial filter, and the second uplink physical channel 8101 may also support a second uplink transmit space filter. The first uplink transmit space filter has an SRI (SRS resource indication) field in the DCI format. Therefore, it may be determined. The second uplink transmit space filter is in DCI format. This may be determined by the Second SRI field.

[0349] When STxMP is applied, the first transmit link corresponding to the first uplink physical channel 8100 The number of layers (ranks) may be the same as, or different from, the second number of transmit layers (ranks) corresponding to the second uplink physical channel 8101. The difference between the first number of transmit layers and the second number of transmit layers does not necessarily have to be 2 or greater. When STxMP is applied, the first uplink physical channel 8100 and the second uplink physical channel 8101 may fully overlap. When STxMP is applied, the first uplink physical channel 8100 and the second uplink physical channel 8101 may partially overlap. When STxMP is applied, it is not necessarily required that the first uplink physical channel 8100 and the second uplink physical channel 8101 partially overlap. When STxMP is applied, the first transport block corresponding to the first uplink physical channel 8100 is not expected to be different from the second transport block corresponding to the second uplink physical channel 8101. Channel 8100 and the second uplink physical channel 8101 each have two transports You don't need to expect the block (codeword) to be transmitted. (When STxMP is applied) It is not necessary to expect that the upper layer parameter sfnSchemePusch or upper layer parameter sfnSchemePusch be set for one or both of the first uplink physical channel 8100 and the second uplink physical channel 8101. When the parameter sfnSchemePusch is configured, the DMRS ports of a certain PUSCH can be multiple (for example, 2 The reference signal of the TCI state and the QCL may be (t). If the upper layer parameter sfnSchemePucch is set for a PUCCH, the DMRS port of a PUCCH may be multiple (e.g., two) reference signals of the TCI state and the QCL.

[0350] STxMP may be configured to be applied to one or both of the first and second uplink physical channels. The application of STxMP may be configured by higher-layer parameters. STxMP may be configured based on terminal capabilities. or it may be decided. For example, STxMP may be applied for PUSCH It may be set by a dedicated upper-layer parameter for it. For example, the application of STxMP for PUCCH may be set by a dedicated upper-layer parameter for PUCCH. The application of STxMP may be indicated by the DCI format. The application of STxMP may be indicated by the setting of one or more SRS resource sets. For example, if the SRS resource set indicator indicates 00 or 01, one SRS resource set is set, and if the SRS resource set indicator indicates 10 or 11, multiple SRS resource sets may be set. For example, if the SRS resource set indicator indicates 00 or 01, a single-panel transmission may be assumed. For example, if the SRS resource set indicator indicates 10 or 11, a multi-panel transmission may be assumed. The application of STxMP is indicated by the parameter associated with each of the multiple SRS resource sets that PUCCH has at least one OFDM symbol It may be sent redundantly. STxMP applies when PUSCH uses parameters related to some or all of multiple SRS resource sets to send at least one OFDM system It may be transmitted redundantly via the same method. STxMP is applied to multiple SRS PUSCH uses parameters related to some or all of the resource set to perform at least one It is acceptable for the data to be transmitted redundantly via subcarriers.

[0351] The RRC parameter or DCI format may be set to include sdmSchemePusch, sdm, sfnSchemePusch, sfn, multiPanel, multiTRP, multiPanelAndMultiTRP, pushRepetition, multiPanelAndPuschRepetition, or multiTRPAndPuschRepetition, thereby setting STxMP to be applied for one or both of the first and second uplink physical channels. By configuring some or all of the settings, it may be configured that STxMP is applied to one or both of the first and second uplink physical channels. stomach.

[0352] The antenna port for DMRS may be a DMRS port. The antenna port for PTRS may be a PTRS port. The antenna port associated with PTRS may be a PTRS port. The antenna port for SRS may be an SRS port. The antenna port for DMRS may be a DMRS port. The antenna port associated with DMRS may be a DMRS port. PTRS may be indicated as PT-RS.

[0353] The procedure for PTRS reception may be applied to terminal device 1 that receives PDSCH scheduled by a first DCI format. The first DCI format is defined as the upper layer parameter dmrs-DownlinkForPDSCH-MappingTypeA-DCI-1-2, or the upper layer parameter dmrs-DownlinkForPDSCH-MappingTypeB-DCI-1-2, where the upper layer parameter phaseTrackingRS is set. DCI format 1_2 may also be used in this case. The first DCI format is a higher layer parameter. The DCI format may be DCI format 1_0 or DCI format 1_1 when the upper layer parameter phaseTrackingRS is set in the meter dmrs-DownlinkForPDSCH-MappingTypeA or the upper layer parameter dmrs-DownlinkForPDSCH-MappingTypeB.

[0354] Terminal device 1 reports the MCS and bandwidth threshold. Good. For example, the MCS and bandwidth thresholds may be reported based on the UE capability at a specific carrier frequency. For example, the MCS and bandwidth thresholds may be reported assuming an MCS table with the maximum modulation order at each subcarrier frequency applied to the data channel at a specific carrier frequency. MCS is, This may be used to indicate at least the modulation scheme and some or all of the target coding rate.

[0355] When the upper-layer parameter phaseTrackingRS in the upper-layer parameter DMRS-DownlinkConfig is set to terminal device 1, some or all of operations 1, 2, 3, and 4 are implemented. It may be a line, instruction, assumption, or decision.

[0356] As operation 1, the upper layer parameters timeDensity and frequencyDensity may each specify three MCS thresholds and two RB thresholds, respectively. .

[0357] As operation 2, if either or both of the upper layer parameters timeDensity and frequencyDensity are set, terminal device 1 will check the presence of the PTRS antenna port (PTRS port). It is also possible to assume that the pattern is a function of the first MCS and the first bandwidth. This may also be done. As operation 2, if one or both of the additional upper layer parameters timeDensity and frequencyDensity are set, and RNTI is MCS-C-RNTI, C-RNTI, or CS-RNTI, terminal device 1 may have a PTRS antenna port (PTRS port) whose pattern is a function of the first MCS and the first bandwidth. The first MCS may be the MCS of the corresponding codeword. The first bandwidth may be the bandwidth in the corresponding BWP (bandwidth part). If the upper layer parameter timeDensity is not set, terminal device 1 will L PTRS We may assume that L is 1. PTRS L may be the number of OFDM symbols between the two OFDM symbols to which PTRS is mapped. For example, L PTRSPTRS may be present in one of the OFDM symbols. If the upper layer parameter frequencyDensity is not set, the terminal device will K PTRS We may assume that K is 2. PTRS This is between the two PRBs to which PTRS is mapped. It may also be the PRB number. For example, K PTRS Even if PTRS is present in one of the PRBs good.

[0358] As operation 3, if neither the upper layer parameter timeDensity nor the upper layer parameter frequencyDensity is set, terminal device 1 will L PTRS is 1, and K PTRS Assuming that is 2 This is also acceptable. As operation 3, if neither the additional upper layer parameter timeDensity nor the upper layer parameter frequencyDensity is set, and RNTI is MCS-C-RNTI, C-RNTI, or CS-RNTI, and condition 1 is not met, terminal device 1 will L PTRS is 1, and K PTRS Assuming that is 2, it may be assumed that PTRS exists. As operation 3, if neither the additional upper layer parameter timeDensity nor the upper layer parameter frequencyDensity is set, and the RNTI is MCS-C-RNTI, C-RNTI, or CS-RNTI, and condition 1 is met, the terminal Device 1 may be assumed to have no PTRS. Condition 1 is that the MCS value is less than 10. It may be present. Condition 1 may also be that the MCS value is less than 5. Condition 1 is the MCS value It is also acceptable for the value of MCS to be less than 15. Condition 1 is also acceptable if the value of MCS is less than 3. Condition 1 may also be that the number of PRB(RB) is less than 3.

[0359] The first MCS threshold, the second MCS threshold, and the third MCS threshold are determined by the upper layer parameters. It may be determined. If the MCS value is less than the first MCS threshold, PTRS may not be present. If the MCS value is greater than or equal to the first MCS threshold and less than the second MCS threshold, L PTRS It was 4 It is also acceptable if the MCS value is greater than or equal to the second MCS threshold and less than the third MCS threshold. PTRS It may also be 2. If the MCS value is at least equal to or greater than the third MCS threshold, L PTRS It was 1 This may also be the case. If the first MCS table is used, the upper layer parameters may provide a first MCS threshold, a second MCS threshold, and a third MCS threshold in the range of 0 to 29. If the second MCS table is used, the upper layer parameters may provide a first MCS threshold, a second MCS threshold, and a third MCS threshold in the range of 0 to 28. A threshold and a third MCS threshold may be provided. If a third MCS table is used, the upper layer parameters may provide a first MCS threshold, a second MCS threshold, and a third MCS threshold in the range of 0 to 27. The MCS value does not have to exceed a fourth MCS threshold. Fourth MCS threshold This may be 29 when the first MCS table is used, 28 when the second MCS table is used, and 27 when the third MCS table is used. .

[0360] The first RB threshold and the second RB threshold may be determined by the upper layer parameters. If the number of RBs is less than the first RB threshold, PTRS may not exist. If the number of RBs is greater than or equal to the first RB threshold and less than the second RB threshold, K PTRS It may also be 2. If the number of RBs is at least equal to or greater than the second RB threshold, K PTRS It may also be 4. The upper layer parameter is 1 or A first RB threshold and a second RB threshold may be provided within the range of 276.

[0361] If the upper-level parameter phaseTrackingRS is not set, terminal device 1 may assume that PTRS does not exist. PTRS time density (L PTRS ) and PTRS frequency density (K PTRS One or both of the following may indicate that PTRS is not present.

[0362] L PTRS If is 2 or 4, and a PDSCH with an allocation period of 2 OFDM symbols is received, it may be assumed that a PTRS will not be transmitted. PTRS If the value is 4, and a PDSCH with an allocation period of 4 OFDM symbols is received, then a PTRS is not transmitted. It may be assumed that this is the case.

[0363] As operation 4, if the RNTI is RA-RNTI, SI-RNTI, MSGB-RNTI, or P-RNTI, terminal device 1 may assume that PTRS does not exist.

[0364] The MCS value for determining the time density of PTRS may be obtained from DCI. For example, if terminal device 1 is scheduled with an MCS index (MCS value) greater than the first value If this occurs, and if a PDSCH for retransmission is received, the time density of PTRS (L PTRS The MCS value for determination may be obtained from the DCI received for the same transport in the initial transmission. The first value is 28 when the first MCS table is used, 27 when the second MCS table is used, and 26 when the third MCS table is used. That's fine.

[0365] One or more DMRS ports may be associated with one PTRS port. One or more connected DMRS ports may be assumed to be QCLs (or QCLs of type A and type D). , PTRS antenna port (PTRS port, antenna port for PTRS, antenna related to PTRS) A Tenaport is one or more DMRS antenna ports (DMRS ports) allocated for PDSCH. (Antenna ports for DMRS) may be associated with one DMRS antenna port. One DMRS antenna port is the lowest indexed DMRS antenna port. It is also permissible. A DMRS port may be a DMRS port on the downlink. A PTRS port may be a PTRS antenna port. A PTRS port may be an antenna port for PTRS. A DMRS port may be a DMRS antenna port. A DMRS port may be an antenna port for DMRS.

[0366] When terminal device 1 is scheduled with two codewords, the PTRS antenna port may be associated with one DMRS antenna port. The one DMRS antenna port is the highest MCS Of the one or more DMRS antenna ports assigned for a codeword, It may be the DMRS antenna port with the lowest indexing. Two codeways If the codes are the same MCS (MCS index), one DMRS antenna port will be assigned to the lowest index of the one or more DMRS antenna ports allocated for codeword 0. It may also be a DMRS antenna port that is connected to it.

[0367] DCI Format 1_0, DCI Format 1_1, and DCI Format 1_2 are PDSCH It may also be a DCI format for scheduling. DCI format 1_0 may be used for scheduling PDSCH in a single downlink cell.

[0368] The PTRS (Phase Tracking Reference Signal) for PDSCH may be determined based on the mapping of the PTRS sequence to physical resources. A series (PTRS series) may be generated. The series may be mapped to physical resources, meaning the series may be mapped to one or more resource elements. The sequence r(n) may be the same as the DMRS sequence. For example, the PTRS sequence r k =r(2m+k') may also be the DMRS (DMRS sequence) at symbol position l0 and subcarrier index k. .

[0369] PTRS may be present in the resource block used for PDSCH. Terminal device 1 sets β so that PTRS (PDSCH-PTRS) matches the transmission power. PTRS It may be assumed that it will be scaled by the following: Terminal device 1 has PTRS with one or more resource elements (k,l) p,μ ni Ma It can be assumed that it will be updated. PTRS series r k This refers to one or more resource elements a (p,μ) k,l It may be mapped to a. (p,μ) k,l These may also be called physical resources. A resource may consist of one or more resource elements.

[0370] One or more primary resource elements for the PTRS do not necessarily have to be used for one or more secondary resource elements for the DMRS.

[0371] The subcarrier index k for PTRS is k RE ref Determined based on at least That's good too. RE ref This may be determined based on either or both of the DMRS port (antenna port) and the DMRS configuration type. For example, k RE ref This may be determined based on some or all of the following: the DMRS port (antenna port), the DMRS configuration type, and whether DMRS extensions apply. For example, k RE ref This may be determined based on some or all of the following: the DMRS port (antenna port), the DMRS configuration type, whether DMRS extensions apply, and whether DMRS receiving assistance is indicated.

[0372] The PTRS transmission procedure may be applied to the first push transmission (UE push transmission). The first push transmission may be a push transmission scheduled by the first DCI format if the first upper layer parameter is set. The first upper layer parameter may be phaseTrackingRS. The first DCI format may be DCI format 0_0, DCI format 0_1, or DCI format 0_2. The first push transmission is the first If the higher-level parameters are set, the PUSCH transmission may correspond to the configured grant. PTRS may be present in the second PUSCH. The second PUSCH is scheduled by a PDCCH with a CRC scrambled by the second RNTI. The PUSCH may be the one that is set. The second PUSCH is the PUSCH that corresponds to the grant that is set. This is also acceptable. The second RNTI may be any of MCS-C-RNTI, C-RNTI, CS-RNTI, and SP-CSI-RNTI.

[0373] If conversion precoding is not applied, and the upper-layer parameter phaseTrackingRS is set in the upper-layer parameter DMRS-UplinkConfig, then operation 1, operation 2, operation 3, Furthermore, some or all of action 4 may be performed, instructed, assumed, or decided.

[0374] The maximum number of PTRS ports may be given by the upper-layer parameter maxNrofPorts. The upper-layer parameter maxNrofPorts may also be an upper-layer parameter in the upper-layer parameter UplinkConfig. The maximum number of PTRS ports associated with sTRP may be given by an upper-layer parameter. The maximum number of PTRS ports associated with mTRP may also be given by an upper-layer parameter. The maximum number of PTRS ports associated with sTRP and the maximum number of PTRS ports associated with mTRP may be the same or different. The maximum number of PTRS ports when STxMP is applied may be given by the upper-layer parameter maxNrofPorts for STxMP. The layer parameter maxNrofPorts may be the same as or different from maxNrofPorts. The upper layer parameter maxNrofPorts for the STxMP may be some or all of maxNrofPorts-r18, maxNrofPorts-sdm, maxNrofPorts-sfn, maxNrofPorts-stxmp, maxNrofPorts-multipanel. The upper layer parameter maxNrofPorts for the STxMP may be related to PTRS ports associated with multiple panels. The maximum number of ports may be indicated. The upper-layer parameter maxNrofPorts may also be an upper-layer parameter in the upper-layer parameter UplinkConfig. Terminal device 1 is the number of reported ports. You don't need to expect a large number of PTRS ports (or UL PTRS ports) to be configured. .

[0375] sTRP may be Single-TRP transmission / communication. mTRP may be Multi-TRP transmission / communication. That's good too.

[0376] Terminal device 1 performs full-conherent uplink transmission. You may report the capabilities being supported. Terminal device 1 has a fully coherent uplink. If the ability to support transmission is reported, terminal device 1 may expect the number of PTRS ports (or UL PTRS ports) to be set to 1. If STxMP is applied, terminal device 1 may expect the number of PTRS ports (or UL PTRS ports) to be set to 2. This is also good. Report that terminal device 1 has the ability to support full coherent uplink transmission. If this is the case, and STxMP is applied, terminal device 1 may expect the number of PTRS ports (or UL PTRS ports) to be set to 2.

[0377] Two transmission methods may be supported for PUSCH. The two transmission methods are codebook Codebook-based transmission (or codebook-based UL transmission) and non-codebook-based transmission Codebook transmission (non-codebook based transmission, or non-codebook based UL transmission) is also acceptable.

[0378] One PTRS port may be associated with one DMRS port. For codebook transmission or non-codebook transmission, the PTRS port-DMRS port relationship is signaled by the first field. This is also acceptable. The first field may be a PTRS-DMRS association field. The first field may be included in DCI format 0_1 ​​or DCI format 0_2. The grant to which PUSCH is set (e.g., grant type 1 to be set) In this case, the PTRS port-DMRS port relationship may be a value of 0, or "00" in the first field.

[0379] When PUSCH is scheduled using DCI format 0_0, the PTRS port is DMRS It may also be related to port 0.

[0380] In non-codebook transmissions, the number of PTRS ports (actual number) is specified in the first DCI format. The number of SRS resources may be determined based on the SRI (SRS resource indicator) or the higher-level parameter sri-ResourceIndicator. For example, the number of PTRS ports (actual number) may be 8. If a source set is configured and the upper-level parameter usage is set to 'noncodebook', the PTRS port for transmission corresponding to each SRS resource set The number (actual number) may be determined based on the SRI corresponding to the relevant SRS resource set, or it may be determined based on the higher-level parameter srs-ResourceIndicator / srs-ResourceIndicator2 corresponding to the relevant SRS resource set. The PTRS port index (PTRS port) may be set by the higher-level parameter ptrs-PortIndex. For example, the higher-level parameter When the parameter phaseTrackingRS is set, the PTRS port index is a higher-level parameter. It may be set by ptrs-PortIndex. The PTRS port index may be the PTRS port index for each SRS resource being set. When STxMP is applied, terminal device 1 may ignore the higher-layer parameter ptrs-PortIndex.

[0381] For codebook transmissions in either partial-coherent or non-coherent mode, the number of PTRS ports (actual number) may be determined based on either or both of the TPMI and / or layer number. The layer number is based on the DCI format. It may be decided based on the following. For example, DCI format 0_1, and DCI format The number of layers may be indicated by the Precoding information and number of layer (field). If the upper layer parameter maxNrofPorts is set to 'n2', the number of PTRS ports (actual number) and the associated transmit layer may be derived from TPMI. The upper layer parameter indicating the maximum number of PTRS ports when STxMP is applied If the parameter is set to 'n2' and the upper layer parameter maxNrofPorts is present, the number of PTRS ports (actual number) and the associated transmit layer may be derived from TPMI. STxMP is applied. The terminal's capability information indicates that the maximum number of PTRS ports in this case is 2, and the upper layer parameters When the meter maxNrofPorts is in place, the number of PTRS ports (actual number) and the associated transmit layer may be derived from TPMI. For example, antenna ports (PUSCH antenna ports) 1000 and antenna port 1002 in TPMI may share PTRS port 0. Antenna ports 1001 and antenna port 1003 in TPMI may share PTRS port 1. For example, in TPMI Antenna ports (PUSCH antenna ports) 1000 and antenna port 1001 may share PTRS port 0. Antenna ports 1002 and antenna port 1003 in TPMI may share PTRS port 1. For example, antenna ports (PUSCH antenna ports) 1000 and antenna port 1004 in TPMI may share PTRS port 0. Antenna ports in TPMI Port 1001 and antenna port 1005 may share PTRS port 1. PTRS port 0 may be associated with layer x. Layer x may be transmitted via antenna ports 1000 and 1002 in TPMI. PTRS port 1 may be associated with layer y. Layer y is transmitted via TPMI. It may be transmitted through antenna ports 1001 and 1003. One or both of x and y are given by the PTRS-DMRS relationship (PTRS-DMRS relationship field), which is a DCI parameter. For example, antenna ports {1000, 1002, 1004, 1006} may be shared with PTRS port 0. Antenna ports {1001, 1003, 1005, 1007} ​​may be shared with PTRS port 1.

[0382] PTRS port 0 may be associated with layer x'. Layer x' may be transmitted on some or all of antenna ports {1000, 1002, 1004, 1006}. Layer x' may be transmitted on some or all of antenna ports {1000, 1001, 1002, 1003}. Layer x' is transmitted on antenna ports { Layers 1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007} ​​may be transmitted in part or in whole. PTRS port 1 may be associated with layer y'. Layer y' may be transmitted in part or in whole with antenna ports {1001, 1003, 1005, 1007}. Layer y' may be transmitted in part or in whole with antenna ports {1004, 1005, 1006, 1007}. Layer y' may be transmitted in part or in whole with antenna ports {1000, 1001, 1002, 1003, 1004, 1005, 1006, 1007}. If the upper layer parameter maxNrofPorts is 'n2', and it is partially coherent or non-coherent, layers x' and y' may be determined. Eight antenna ports apply. In this case, layers x' and y' may be given. If the DMRS extension is applied, layer x 'and layer y' may also be given.

[0383] The PTRS-DMRS relationship field may indicate the relationship between PTRS ports and DMRS ports. One or two PTRS ports may be set by higher-level parameters (e.g., maxNrofPorts). i. The DMRS port may be indicated by the antenna port field. SRS resources If an instruction field exists and the maximum rank number is greater than 2, the PTRS-DMRS relationship field may indicate a relationship between a DMRS port and a PTRS port that corresponds to either or both of the SRS resource instruction field and the precoding information-layer count field.

[0384] If an SRS resource indicator field exists, and the SRS resource indicator field is equal to "01" and "11", and the maximum rank is 2, the most significant bit (MSB) of the PTRS-DMRS relationship field may indicate the relationship between the DMRS port and the PTRS port corresponding to one or both of the SRS resource indicator field and the precoding information-layer count field. In these cases, the least significant bit (LSB) of the PTRS-DMRS relationship field may also indicate the relationship between the DMRS port and the PTRS port corresponding to one or both of the second SRS resource indicator field and the second precoding information field. The maximum rank is determined by the upper layer parameter maxRank. It may also be used as a fixed value.

[0385] The Second PTRS-DMRS association field may be included in either or both of DCI format 0_1 ​​and DCI format 0_2. If the Zhang is not applied, the number of bits (information bits) that make up the PTRS-DMRS relationship field is It may also be 2 bits. If the DMRS extension is applied, the number of bits constituting the PTRS-DMRS relationship field may be 3 bits. The second PTRS-DMRS relationship field is one of the second SRS resource instruction field and the second precoding information field. You may also specify the relationship between DMRS ports and PTRS ports that support one or both.

[0386] The transmitting section and the baseband section within the transmitting section may generate a PTRS (PTRS sequence). PTRS (PTRS sequence) r in layer j p’(j)(m) may be generated. For example, when j is j', r p’(j’) (m) may also be a DMRS sequence r(m). For example, when j is j'', r p’(j’’) (m) may be a DMRS sequence r(m). For example, if j is either j' and j'' If not, r p’(j) (m) may be 0. p'(j') is the antenna port associated with PTRS transmission. p'(j') and p'(j'') may be antenna ports (virtual antenna ports, DMRS ports) associated with PTRS transmission. p'(j') may be associated with the first DMRS port. p'(j'') may be associated with the second DMRS port. One or both of the first and second DMRS ports may be determined by the PTRS-DMRS relationship field.

[0387] PTRS (PTRS series) r p’(j) (m) is based at least on the precoding matrix W, physical resource a (p,μ) k,l It may also be mapped to r of length v. p’(j) The vector by (m) is , at least by the precoding matrix W, a physical resource a of length ρ (p,μ) k,l Baek It may be converted to a toru. p is {p0, ..., p ρ-1} is also acceptable.

[0388] The subcarrier index k for PTRS is k RE ref Determined based on at least That's good too. RE ref This is the DMRS antenna port p' and the DMRS configuration type, and either or both of these. It may be determined based on, for example, k RE ref This is the DMRS antenna port p' and the DMRS configuration port The decision may be based on the type and whether the DMRS extension applies, in whole or in part. For example, k RE ref This includes the DMRS antenna port p', the DMRS configuration type, and the application of DMRS extensions. The decision may be made based in part or in whole on whether or not it is done, and whether or not DMRS receiving assistance is instructed.

[0389] A PTRS (PTRS series, PTRS sequence) may be provided for PDSCH. A PTRS (PTRS series, PTRS sequence) may be provided for PUSCH. One or two of one or more DMRS ports may be determined based on one field in the DCI format. Each of the one or two DMRS ports may be associated with one PTRS port. A PTRS port may be an antenna port associated with PTRS transmission.

[0390] The subcarrier index for PTRS may be determined based on whether at least the DMRS extension applies. For example, k RE ref This may be determined based on whether or not the DMRS extension applies.

[0391] If the DMRS extension is applied, the PTRS does not need to be transmitted. For example, if the DMRS extension is applied and a certain antenna port is used, the PTRS does not need to be transmitted or determined. That antenna port may be an antenna port (DMRS port) that becomes available when the DMRS extension is applied. For example, if the DMRS extension is applied and DMRS receiving assistance is applied, the PTRS does not need to be transmitted or determined. For example, if the DMRS extension is applied and DMRS receiving assistance is not applied, the PTRS may be transmitted or determined. If the DMRS extension is applied, it may be assumed that the PTRS does not exist. If the upper layer parameter phaseTrackingRS is set, the DMRS extension is applied. It is not necessary to expect this. If the DMRS extension is applied, the upper layer parameter phaseTrackingRS It is not necessary to expect that this setting will be established.

[0392] If PTRS is mapped in the resource element having the first antenna port, data does not need to be mapped in the resource element having the second antenna port. When mapped, it is not necessary to expect that data will be mapped to the resource element of the second antenna port for the coscheduling terminal device. Terminal device 1 If DMRS extensions are applied for the coscheduling terminal, terminal device 1 does not need to expect that DMRS extensions will not be applied for the coscheduling terminal. If DMRS reception assistance is applied for terminal device 1, terminal device 1 does not need to expect that DMRS reception assistance will not be applied for the coscheduling terminal. You don't need to expect that.

[0393] When PTRS is transmitted in one or more resource elements of the first antenna port, data is transmitted in one or more resource elements of the second antenna port. It is not necessary to expect that any signals will be transmitted. The first antenna port may be antenna port #900. The first antenna port may be one of the antenna ports that become available when the DMRS extension is applied. The first antenna port may be an antenna port for terminal device 1. The second antenna port may be an antenna port for terminal device 1 or another terminal device (e.g., a coscheduled terminal device).

[0394] Antenna ports that become available when the DMRS extension is applied do not necessarily have to be antenna ports associated with PTRS. For example, it is possible to assume that PTRS is not present on an antenna port that becomes available when the DMRS extension is applied.

[0395] Terminal device 1 may include a receiving unit that receives a PDSCH and a DCI format that instructs the reception of the PDSCH. Terminal device 1 may also include a transmitting unit that generates part or all of the PDSCH, DMRS (DMRS series) for the PDSCH, and PTRS (PTRS series) for the PDSCH, or a baseband unit in the transmitting unit.

[0396] The DCI format may include a second field. The second field may indicate one DMRS port out of N DMRS ports. One PTRS port is one DMRS port. The second field may be determined based on the number of DMRS ports. The second field may indicate two DMRS ports out of N' DMRS ports. The two PTRS ports may be determined based on the two DMRS ports. The second field and one or more DMRS ports for DMRS, based on the number of DMRS ports. Then, the PTRS port for PTRS may be determined. The second field and 1 for DMRS. Alternatively, the antenna port associated with the PTRS may be determined based on multiple DMRS ports.

[0397] Terminal device 1 includes a higher layer processing unit that receives information including a first parameter, information including a second parameter, and information including a third parameter, and a downlink control channel (PDCCH The system comprises a receiving unit that receives downlink control information (DCI) carried by the DCI, a PUSCH scheduled by the DCI, and a transmitting unit that transmits a phase tracking reference signal (PTRS), The first parameter mentioned above is a parameter for configuring multiple SRS resource sets. The second parameter is a parameter indicating that the PUSCH is transmitted based on the plurality of SRS resource sets, the third parameter is a parameter indicating the first maximum number of PTRS ports, the DCI indicates some or all of the SRS resource sets among the plurality of SRS resource sets, and the DCI indicates all of the plurality of SRS resource sets In this case, the PTRS port for the PTRS is determined based on the third parameter and the DCI. It may be determined.

[0398] Terminal device 1 may include a higher-layer processing unit that receives information including a first parameter, information including a second parameter, and information including a third parameter. Terminal device 1 may receive information including a first parameter, information including a second parameter, and information including a third parameter. Terminal device 1 is carried on a downlink control channel (PDCCH). The terminal device 1 may also be equipped with a receiving unit that receives downlink control information (DCI). The terminal device 1 may receive downlink control information (DCI) carried on the downlink control channel (PDCCH). The terminal device 1 may include a transmitter that transmits a PUSCH scheduled by the DCI and a phase tracking reference signal (PTRS). The terminal device 1 may receive downlink control information (DCI) carried on the downlink control channel (PDCCH). The Joule-transmitted PUSCH and the Phase Tracking Reference Signal (PTRS) may also be transmitted. Parameter 1 may also be a parameter for configuring multiple SRS resource sets. The second parameter may be a parameter indicating that the PUSCH is transmitted based on the plurality of SRS resource sets. The third parameter may be a parameter indicating the first maximum number of PTRS ports. The DCI may indicate some or all of the SRS resource sets among the plurality of SRS resource sets. If all of the resource set is shown, the PTRS port for the PTRS may be determined based on the third parameter and the DCI. The terminal device 1 provides information including the fourth parameter. The terminal device 1 may include a higher-layer processing unit that receives the information. The terminal device 1 may receive information including a fourth parameter. The fourth parameter may be a parameter indicating the second maximum number of PTRS ports. If the DCI represents a portion of the plurality of SRS resource sets, The PTRS port for the PTRS may be determined based on the fourth parameter and the DCI.

[0399] The first parameter is a parameter for configuring one or more SRS resource sets. It may be a meter. The first parameter may be an SRS resource set. The first parameter may be an SRS-ResourceSet. The first parameter may be part of or all of an SRS-Config. The first parameter may be related to the same or different TCI states. The first parameter may be related to the same or different DCI fields. The first parameter may be related to the same or different TPMI fields. The first parameter may be related to the same or different CDM groups.

[0400] The second parameter described above is a parameter associated with each of the multiple SRS resource sets. This may be a parameter to indicate that PUSCH will be sent using the second parameter. The data may be information indicating that STxMP is applied for PUSCH. The second parameter may be part or all of SRS-Config, SRS-ResourceSet. The parameter may be usage. The second parameter is sdmSchemePusch. The second parameter may be sfnSchemePusch. The second parameter may be set to any of beamManagement, codebook, nonCodebook, antennaSwitching, sdm, multiPanel, multiTRP, multiPanelAndMultiTRP, pushRepetition, multiPanelAndPuschRepetition, or multiTRPAndPuschRepetition. The second parameter may be set to some or all of beamManagement, codebook, nonCodebook, antennaSwitching, stxmp, sdm, multiPanel, multiTRP, multiPanelAndMultiTRP, pushRepetition, multiPanelAndPuschRepetition, or multiTRPAndPuschRepetition.

[0401] The third parameter is determined by the second parameter for each of the multiple SRS resource sets. The maximum number of PTRS ports when it is indicated that PUSCH will be sent using parameters related to this. The parameter may also indicate a number. The third parameter is a set of multiple SRS resources. When it is indicated that PUSCH will be sent using the parameters associated with each of the PTRS This parameter may indicate the maximum number of ports. The third parameter may indicate multiple SRS connections. It was shown that PUSCH should be sent using parameters associated with each source set. The third parameter may indicate that the maximum number of ports in the combined PTRS is 1 or 2. The third parameter may be maxNrofPorts for STxMP. The third parameter may be maxNrofPorts for SDM. The third parameter may be maxNrofPorts for SFN. The third parameter may be part or all of maxNrofPorts-r18, maxNrofPorts-sdm, maxNrofPorts-sfn, maxNrofPorts-stxmp, maxNrofPorts-multipanel. This may also be the case. The third parameter may be set to either or both of 'n1' and 'n2'.

[0402] The fourth parameter is related to the second parameter being associated with one SRS resource set. This indicates the maximum number of PTRS ports when it is indicated that a PUSCH will be sent using the specified parameters. It may also be a parameter. The fourth parameter is associated with one SRS resource set. This indicates the maximum number of PTRS ports when it is indicated that a PUSCH will be sent using the specified parameters. It may also be a parameter. The fourth parameter relates to one SRS resource set. The parameter may indicate that the maximum number of PTRS ports is 1 or 2 when it is indicated that a PUSCH will be sent using the following parameters. The fourth parameter is 'n1' Either or both of 'n2' may be set. The fourth parameter may be the maximum number of PTRS ports per panel. The fourth parameter may be the number of oscillators per panel.

[0403] The DCI may represent one or more SRS resource sets. The DCI may represent one or more SRS resource sets by an SRS resource set indicator field. The SRS resource set indicator in the DCI is the first SRI field in the DCI and the first The DCI may show either or both of the following: first information relating to the TPMI field, and second information relating to the second SRI field and the second TPMI field in the DCI. If the code point of the SRS resource set indicator in the DCI is 00, the first information may be the first SRS resource set. If the code point is 01, the second information may be a second SRS resource set. If the code point of the SRS resource set indicator in the DCI is 10, the first The information is the first SRS resource set, and the second information may be the second SRS resource set. If the code point of the SRS resource set indicator in the DCI is 11, The first information is the second SRS resource set, and the second information is the first SRS resource It may also be a set. The code point of the SRS resource set indicator in the DCI is 10. If the value is 11, the first information may be the first SRS resource set, and the second information may be the second SRS resource set. If the code point is 00 or 01, it may indicate that it is an sTRP UL transmission. If the code point of the SRS resource set indicator in the DCI is 00 or 01, it may indicate that it is a single panel transmission. The code of the SRS resource set indicator in the DCI If the points are 10 or 11, it may indicate that it is an mTRP UL transmission. If the code points of the SRS resource set indicator in the DCI are 10 or 11, it may indicate that it is a multi-panel transmission. The code points of the SRS resource set indicator in the DCI If the code point is 10 or 11, it may indicate that it is an mTRP UL transmission. If the code point of the SRS resource set indicator in the DCI is 10 or 11, it may indicate that the PUSCH transmission is an SDM scheme. If the code point of the SRS resource set indicator in the DCI is 10 or 11, it may indicate that the PUSCH transmission is an SFN scheme. It is also fine if the code point of the SRS resource set indicator in the DCI is 10 or 11 to 00. Alternatively, if changed to 01, it may indicate a fallback from multi-panel transmission to single-panel transmission.

[0404] The first maximum number of PTRS ports and the second maximum number of PTRS ports may be the same or different. The first maximum number of PTRS ports and the second maximum number of PTRS ports may be represented by some or all of n1, n2, n3, and n4.

[0405] The following describes various aspects of the apparatus according to one embodiment of this invention.

[0406] The programs that run on the base station device 3 and terminal device 1 according to the present invention may be programs that control the CPU (Central Processing Unit) and the like (programs that make the computer function) in order to realize the functions of the above embodiment according to the present invention. The information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing. Subsequently, various types of ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive) were developed. It is stored in a location and read, modified, and written to by the CPU as needed.

[0407] Furthermore, the terminal device 1 and a part of the base station device 3 in the above-described embodiment may be implemented using a computer. In that case, the program for implementing this control function may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read by a computer system and executed.

[0408] Furthermore, the term "computer system" as used herein refers to the computer system built into terminal device 1 or base station device 3, and includes hardware such as the OS and peripheral devices. In addition, "computer-readable recording medium" refers to portable media such as flexible disks, magneto-optical disks, ROMs, CD-ROMs, and storage devices such as hard disks built into computer systems.

[0409] Furthermore, "computer-readable recording media" may include those that dynamically hold programs for a short period of time, such as communication lines used when transmitting programs via networks such as the Internet or communication lines such as telephone lines, as well as those that hold programs for a certain period of time, such as volatile memory inside a computer system that acts as a server or client in such cases. In addition, the above-mentioned program may be for the purpose of realizing some of the functions described above, and may also be a program that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

[0410] Furthermore, the base station device 3 in the above-described embodiment can also be realized as an assembly (device group) composed of multiple devices. Each device constituting the device group may have some or all of the functions or functional blocks of the base station device 3 related to the above-described embodiment. The device group only needs to have a complete set of the functions or functional blocks of the base station device 3. In addition, the terminal device 1 related to the above-described embodiment can also communicate with the base station device as an assembly.

[0411] Furthermore, the base station device 3 in the above-described embodiment is EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or NG-RAN (NextGen RAN, NR RAN) Alternatively, the base station device 3 in the above-described embodiment may also be connected to the eNodeB and / or gNB. It may possess some or all of the functions of the corresponding higher-level node.

[0412] Furthermore, some or all of the terminal device 1 and base station device 3 in the above-described embodiment may be implemented as LSIs, which are typically integrated circuits, or as chipsets. Each functional block of terminal device 1 and base station device 3 may be individually chipped, or some or all of them may be integrated into a single chip. Furthermore, the integrated circuit method is not limited to LSIs; dedicated circuits may also be used. Alternatively, it can be implemented with a general-purpose processor. Furthermore, advances in semiconductor technology may replace LSIs. If the technology for integrated circuit integration emerges, it will also be possible to use integrated circuits that utilize that technology.

[0413] Furthermore, although the above-described embodiment mentions a terminal device as an example of a communication device, the present invention is not limited to this and can also be applied to stationary or non-movable electronic devices installed indoors or outdoors, such as terminal devices or communication devices for AV equipment, kitchen equipment, cleaning and washing machines, air conditioning equipment, office equipment, vending machines, and other household appliances.

[0414] While embodiments of this invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and design modifications and the like that do not depart from the gist of this 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 technical scope of this invention. In addition, configurations in which elements described in each of the above embodiments that produce similar effects are substituted for each other are also included. [Explanation of Symbols]

[0415] 1 (1A, 1B, 1C) Terminal device 3 Base station equipment 10, 30 Wireless Transceiver Unit 10a, 30a Wireless 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 Media Access Control Layer Processing Unit 16, 36 Wireless Resource Control Layer Processing Unit 91, 92, 93, 94 Search area set 300 Component Carrier 301 Primary Cell 302, 303 Secondary Cells Set of resource elements for 700 PSS Set of resource elements for 710, 711, 712, 713 PBCH and DMRS for PBCH Set of resource elements for 720 SSS 3000 points 3001, 3002 Resource Grid 3003, 3004 BWP 3011, 3012, 3013, 3014 Offset 3100, 3200 Common Resource Block Sets 10001 Cross Polarization Antenna 10002 Antenna Group

Claims

1. A higher-layer processing unit that receives information including a first parameter, information including a second parameter, and information including a third parameter, A receiving unit that receives downlink control information (DCI) carried on the downlink control channel (PDCCH), The system comprises a PUSCH scheduled by the DCI and a transmitter that transmits a phase tracking reference signal (PTRS), The first parameter described above is a parameter for configuring multiple SRS resource sets. the law of nature, The second parameter is a parameter for indicating that the PUSCH will be transmitted based on the plurality of SRS resource sets, The third parameter in the first phase is the parameter that indicates the maximum number of PTRS ports. The DCI is a subset of the multiple SRS resource sets, or all of them. Show, If the DCI represents all of the multiple SRS resource sets, the PTRS port for the PTRS is determined based on the third parameter and the DCI. Terminal device.

2. The aforementioned upper-layer processing unit further receives information including a fourth parameter, The fourth parameter is a parameter indicating the second maximum number of PTRS ports, If the DCI represents a portion of the multiple SRS resource sets, the PTRS port for the PTRS is determined based on the fourth parameter and the DCI. The terminal device according to claim 1.

3. The second parameter indicates that STxMP is applied for the PUSCH. The terminal device according to claim 1.

4. The first maximum number of PTRS ports and the second maximum number of PTRS ports are the same or different. The terminal device according to claim 1.

5. A higher-layer processing unit that transmits information including a first parameter, information including a second parameter, and information including a third parameter, A transmitter unit that transmits downlink control information (DCI) carried on the downlink control channel (PDCCH), The system comprises a PUSCH scheduled by the DCI and a receiving unit that receives a phase tracking reference signal (PTRS), The first parameter described above is a parameter for configuring multiple SRS resource sets. the law of nature, The second parameter is a parameter for indicating that the PUSCH will be transmitted based on the plurality of SRS resource sets, The third parameter in the first phase is the parameter that indicates the maximum number of PTRS ports. The DCI is a subset of the multiple SRS resource sets, or all of them. Show, If the DCI represents all of the multiple SRS resource sets, then it is understood that the PTRS port for the PTRS is determined based on the third parameter and the DCI. Base station equipment.

6. The aforementioned upper-layer processing unit further transmits information including a fourth parameter, The fourth parameter is a parameter indicating the second maximum number of PTRS ports, If the DCI represents a portion of the multiple SRS resource sets, it is understood that the PTRS port for the PTRS is determined based on the fourth parameter and the DCI. The base station device according to claim 5.

7. The second parameter indicates that STxMP is applied for the PUSCH. The base station device according to claim 5.

8. The first maximum number of PTRS ports and the second maximum number of PTRS ports are the same or different. The base station device according to claim 5.

9. This is a communication method used in terminal devices. The steps include receiving information containing a first parameter, information containing a second parameter, information containing a third parameter, and information containing a fourth parameter. The steps include receiving downlink control information (DCI) carried on the downlink control channel (PDCCH), The process includes a step of transmitting a PUSCH scheduled by the DCI, and a step of transmitting a phase tracking reference signal (PTRS), The first parameter described above is a parameter for configuring multiple SRS resource sets. the law of nature, The second parameter is a parameter for indicating that the PUSCH will be transmitted based on the plurality of SRS resource sets, The third parameter in the first phase is the parameter that indicates the maximum number of PTRS ports. The DCI is a subset of the multiple SRS resource sets, or all of them. Show, If the DCI represents all of the multiple SRS resource sets, the PTRS port for the PTRS is determined based on the third parameter and the DCI. The fourth parameter is a parameter indicating the second maximum number of PTRS ports, If the DCI represents a portion of the multiple SRS resource sets, the PTRS port for the PTRS is determined based on the fourth parameter and the DCI. Communication method.

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