Terminal device, base station device, and communication method

Abstract

To provide a terminal device for efficiently performing communication, a base station device and a communication method.SOLUTION: A terminal device includes a reception part for receiving a PDCCH in which a DCI is arranged, and a transmission part for transmitting a PUSCH in which the DCI instructs transmission, and sets a first RRC parameter and a second RRC parameter. The first RRC parameter is information for defining a codebook subset for the PUSCH, and the second RRC parameter is information showing the number of antenna groups of the terminal device. In the case that the first RRC parameter is a first coherent type and that the second RRC parameter shows 2 or 4, a first TPMI field in the DCI instructs first information and second information, a second TPMI field in the DCI instructs third information, and a precoding matrix for the PUSCH is determined on the basis of at least the first information, the second information and the third information.SELECTED DRAWING: Figure 10

Description

[Technical Field]

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

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

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

[0004] 3GPP is currently studying the expansion of services supported by NR (non- Patent document 2). [Prior art documents] [Non-patent literature]

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

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

[0007] (1) A first aspect of the present invention is a terminal device, comprising: a receiving unit that receives a PDCCH on which DCI is arranged; and a transmitting unit that transmits a PUSCH instructed to transmit by the DCI, wherein a first RRC parameter and a second RRC parameter are set, and the first RRC parameter is a the second RRC parameter is information for defining a codebook subset for the PUSCH, the second RRC parameter is information indicating the number of antenna groups of a terminal, and the first RRC parameter is information indicating the number of antenna groups of a terminal. is the first coherence type, and the second RRC parameter is 2 or 4 If the first TPMI field in the DCI indicates the first information and the second information, The second TPMI field in the DCI indicates third information, and the first information and the second information and performing precoding for the PUSCH based at least on the information and the third information. The matrix is ​​determined.

[0008] (2) Furthermore, the first coherence type is one or both of fullyAndPartialAndNonCoherent and fullyCoherent.

[0009] (3) Furthermore, the first information is the TPMI index.

[0010] (4) Furthermore, the second information is information for determining the unit of phase control.

[0011] (5) Furthermore, the second information is determined based at least on capability information of the terminal.

[0012] (6) Furthermore, the third information is information for determining a value for phase control.

[0013] (7) Furthermore, the third information is at least the first RRC parameter and the second information. It is determined based on both.

[0014] (8) A second aspect of the present invention is a base station device, comprising: a transmitter that transmits a PDCCH in which DCI is arranged; and a receiver that receives a PUSCH instructed to transmit by the DCI; and sets first RRC parameters and second RRC parameters, is information for defining a codebook subset for the PUSCH, and the second The RRC parameter is information indicating the number of antenna groups of a terminal, and when the first RRC parameter is a first coherent type and the second RRC parameter is 2 or less, If the first TPMI field in the DCI indicates first information and second information, and, understanding that the second TPMI field in the DCI indicates third information, The PUSCH is determined based on at least the information, the second information, and the third information. It is understood that the precoding matrix for

[0015] (9) Furthermore, the first coherence type is one or both of fullyAndPartialAndNonCoherent and fullyCoherent.

[0016] (10) Furthermore, the first information is a TPMI index.

[0017] (11) Furthermore, the second information is information for determining the unit of phase control.

[0018] (12) Furthermore, the second information is determined based at least on capability information of the terminal.

[0019] (13) Furthermore, the third information is information for determining a value of phase control.

[0020] (14) Furthermore, the third information may include at least the first RRC parameter and the second information. The decision will be based on at least

[0021] (15) A third aspect of the present invention is a communication method used in a terminal device, comprising: receiving a PDCCH in which the DCI is arranged; and transmitting a PUSCH instructed to transmit by the DCI. and receiving a step of receiving a first RRC parameter and a second RRC parameter, wherein the first RRC parameter is information for defining a codebook subset for the PUSCH, and the second RRC parameter is information indicating the number of antenna groups of a terminal. and the first RRC parameter is a first coherence type, and If the second RRC parameter indicates 2 or 4, a first TPMI field in the DCI indicates first information and second information, and a second TPMI field in the DCI indicates third information. A precoding matrix for the PUSCH is determined based on at least the first information, the second information, and the third information. [Effects of the Invention]

[0022] According to the present invention, the terminal device can perform communication efficiently, and the base station device can perform communication efficiently. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a conceptual diagram of a wireless communication system according to an aspect of the present embodiment. [Figure 2] 10 is an example showing the relationship between a subcarrier spacing setting μ, the number of OFDM symbols per slot Nslot symb, and a cyclic prefix (CP) setting according to one aspect of the present embodiment. [Figure 3]FIG. 10 is a diagram illustrating an example of a method for configuring a resource grid according to an aspect of the present embodiment. [Figure 4] FIG. 3 is a diagram illustrating an example of the configuration of a resource grid 3001 according to an aspect of the present embodiment. [Figure 5] 2 is a schematic block diagram illustrating an example of the configuration of a base station device 3 according to one aspect of the present embodiment. FIG. [Figure 6] 1 is a schematic block diagram showing an example of the configuration of a terminal device 1 according to an aspect of the present embodiment. [Figure 7] FIG. 2 is a diagram illustrating an example of the configuration of an SS / PBCH block according to one aspect of this embodiment. [Figure 8] FIG. 10 is a diagram illustrating an example of a monitoring opportunity for a set of search areas according to one aspect of the present embodiment. [Figure 9] FIG. 10 is a diagram illustrating an example of a method for applying precoding according to one aspect of this embodiment. [Figure 10] FIG. 2 is a diagram illustrating an example of an antenna layout of a terminal according to an aspect of the present embodiment. [Figure 11] FIG. 10 is a diagram showing an example of a table indicating TPMI index according to one aspect of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, an embodiment of the present invention will be described.

[0025] floor(C) may be a floor function for real number C. For example, floor(C) may be a function that outputs the largest integer that does not exceed real number C. ceil(D) may be a ceiling function for real number D. For example, ceil(D) may be a function that outputs the smallest integer that does not fall below real number D. mod(E,F) is a function that outputs the remainder when E is divided by F. mod(E,F) is a function that outputs the value corresponding to the remainder when E is divided by F. exp(G)=e^G, where e is Napier's constant. H^I indicates H to the Ith power. max(J,K) is a function that outputs the maximum value among J and K. Here, if J and K are equal, max(J,K) is a function that outputs J or K. min(L,M) is a function that outputs the maximum value among L and M. Here, if L and M are equal, min(L,M) is a function that outputs L or M. round(N) is a function that outputs the integer value closest to N. "·" indicates multiplication.

[0026] In a wireless communication system according to an aspect of the present embodiment, at least Orthogonal Frequency Division Multiplexing (OFDM) is used. An OFDM symbol is a unit of time domain of OFDM. An OFDM symbol includes at least one or more subcarriers. An OFDM symbol is a time-continuous signal in baseband signal generation. al). In the downlink, at least CP-OFDM (Cyclic Prefix - Orthogonal Frequency Division Multiplexing) is used. In the uplink, CP-OFDM or Alternatively, either DFT-s-OFDM (Discrete Fourier Transform - spread - Orthogonal Frequency Division Multiplexing) is used. DFT-s-OFDM may be obtained by applying transform precoding to CP-OFDM.

[0027] The OFDM symbol may be a name including a CP added to the OFDM symbol. In other words, a certain OFDM symbol may be configured to include the certain OFDM symbol and the CP added to the certain OFDM symbol.

[0028] Fig. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment. In Fig. 1, the wireless communication system includes at least terminal devices 1A to 1C and a base station device 3 (BS#3: Base station#3). Hereinafter, the terminal devices 1A to 1C will also be referred to as terminal device 1 (UE#1: User Equipment#1).

[0029] The base station device 3 may be configured to include one or more transmitting devices (or transmission points, transmitting / receiving devices, transmitting / receiving points). When the base station device 3 is configured by multiple transmitting devices, each of the multiple transmitting devices may be located at a different position. For example, the base station device 3 may be configured as follows: For example, the base station device 3 may be configured with a transmission / reception point 3a and a transmission device 3b. For example, the base station device 3 may be configured with a transmitting / receiving point 3a and a transmitting / receiving point 3b. It may be configured as follows.

[0030] 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 may also be referred to as a cell.

[0031] A serving cell may be configured to include one or both of a downlink component carrier (downlink carrier) and one or both of an uplink component carrier (uplink carrier). A serving cell may be configured to include one or both of two or more downlink component carriers and two or more uplink component carriers. Downlink component carriers and uplink component carriers are also collectively referred to as component carriers (carriers).

[0032] For example, one resource grid may be provided for each component carrier. Alternatively, one resource grid may be provided for each set of one component carrier and a certain subcarrier spacing configuration μ, where the subcarrier spacing configuration μ is also referred to as numerology. For example, one resource grid may be provided for a set of a certain antenna port p, a certain subcarrier spacing configuration μ, and a certain transmission direction x.

[0033] The resource grid is size,μ grid,x N RB sc where The resource grid is divided into common resource blocks N start,μ grid,x It starts from Resource Block N start,μ grid,x is also called the reference point of the resource grid.

[0034] The resource grid is subframe,μ symb It contains OFDM symbols.

[0035] The subscript x attached to the resource grid related parameters specifies the sending direction. For example, the subscript x indicates either the downlink or the uplink. It may also be used for

[0036] N size,μ grid,x is indicated by a parameter provided by the RRC layer (e.g., Data CarrierBandwidth) offset setting. start,μ grid,x is the bandwidth configuration indicated by parameters provided by the RRC layer (e.g., parameter OffsetToCarrier). The offset setting and band setting are the configuration of the SCS-specific carrier. This is the setting used for

[0037] Subcarrier spacing (SCS) for a given subcarrier spacing setting μ )Δf is Δf=2 μ 15 kHz. Here, the subcarrier spacing setting μ is 0 , 1, 2, 3, or 4 may be indicated.

[0038] FIG. 2 shows a subcarrier spacing setting μ and the number of OFDM symbols per slot N according to one aspect of this embodiment. slot symb 2A, for example, when the subcarrier spacing setting μ is 2 and the CP setting is normal cyclic prefix (CP), N slot symb =14, N frame,μ slot =40, N subframe, μ slot = 4. In addition, in FIG. 2B, for example, if the subcarrier spacing setting μ is 2, If the CP setting is an extended cyclic prefix (CP), slot symb =12, N frame ,μ slot =40, N subframe,μ slot =4.

[0039] Time unit T c may be used to express a length in the time domain. c is T c =1 / (Δf max N f ) Δf max= 480 kHz. f =409 6. The constant κ is κ=Δf max N f / (Δf ref N f,ref )=64. Δf ref is 1 5kHz. N f,ref is 2048.

[0040] The transmission of the signal in the downlink and / or the transmission of the signal in the uplink may be a period of length T f The radio frame (system frame, frame) may be organized into T f =(Δf max N f / 100)·T s = 10 ms. A radio frame consists of 10 subframes. The length of a subframe is T sf =(Δf max N f / 1000)·T s = 1 ms. The number of OFDM symbols per subframe is N subframe,μ symb =N slot symb N subframe,μ slot is.

[0041] The length of one slot may be determined based on the subcarrier spacing setting μ. When μ is 0, the length of one slot may be 1 ms. When μ is 1, the length of one slot may be 0.5 ms. When μ is 2, the length of one slot may be 0.25 ms. μ If is 3, the length of one slot may be 0.125 ms.

[0042] In one carrier, there is a first set of one or more frames in the uplink and a second set of one or more frames in the downlink. The uplink frame for transmission from the terminal device 1 is T 10 15 20 25 30 35 40 45 50 55 60 65 2 before the start of the downlink frame. TAStart from the front T TA is (N TA N TA,offset )T c may be.

[0043] An OFDM symbol is a time domain unit of a communication system. For example, an OFDM symbol may be a time domain unit of CP-OFDM. Also, an OFDM symbol may be a time domain unit of DFT-s-OFDM.

[0044] A slot may consist of multiple OFDM symbols, for example, N consecutive OFDM symbols. slot symb One slot may be composed of OFDM symbols. For example, In the settings, N slot symb = 14. In addition, in the setting of the extended CP, N slot symb =12.

[0045] For a given subcarrier spacing setting μ, the number of slots contained in a subframe and the number of For example, the slot index n μ s ranges from 0 to N in the subframe subframe,μ slot The sub-characters may be given in ascending order as integer values ​​in the range -1. For setting the rear interval μ, the number and index of slots included in the radio frame may be given. Also, the slot index n μ s,f ranges from 0 to N in the radio frame. frame,μ slot Integer values ​​in the range -1 to +1 may be given in ascending order.

[0046] Fig. 3 is a diagram showing an example of a resource grid configuration method according to one aspect of this embodiment. The horizontal axis in Fig. 3 represents the frequency domain. Fig. 3 shows an example of a resource grid configuration with subcarrier spacing μ1 in a component carrier 300, and an example of a resource grid configuration with subcarrier spacing μ2 in the component carrier. In this way, one or more subcarrier spacings may be set for a given component carrier. Fig. 3 assumes that μ1 = μ2-1, but various aspects of this embodiment are not limited to the condition μ1 = μ2-1.

[0047] The component carrier 300 is a band having a predetermined width in the frequency domain.

[0048] Point 3000 is an identifier for identifying a certain subcarrier. The point 3000 is also called point A. The common resource block (CRB) set 3100 is a common resource block for the subcarrier spacing setting μ1. It's a rock set.

[0049] Of the common resource block set 3100, the common resource block that includes the point 3000 (the black block in the common resource block set 3100 in FIG. 3) is also called the reference point of the common resource block set 3100. The reference point of the common resource block set 3100 may be the common resource block with index 0 in the common resource block set 3100.

[0050] The offset 3011 is the offset from the reference point of the common resource block set 3100 to the reference point of the resource grid 3001. The offset 3011 is indicated by the number of common resource blocks for the subcarrier spacing setting μ1. The resource grid 3001 is N size,μgrid1,x It contains common resource blocks.

[0051] The offset 3013 is the distance from the reference point of the resource grid 3001 to the reference point (N start,μ BWP,i1 ) is the offset to

[0052] Common resource block set 3200 is a set of common resource blocks for subcarrier spacing setting μ2.

[0053] In the common resource block set 3200, the common resource block including the point 3000 (the black block in the common resource block set 3200 in FIG. 3) is also referred to as the reference point of the common resource block set 3200. The reference point of the common resource block set 3200 may be the common resource block with index 0 in the common resource block set 3200.

[0054] The offset 3012 is the offset from the reference point of the common resource block set 3200 to the reference point of the resource grid 3002. The offset 3012 is indicated by the number of common resource blocks relative to the subcarrier spacing μ. The resource grid 3002 is N size,μ grid2,x Common litho Includes base block.

[0055] The offset 3014 is the distance from the reference point of the resource grid 3002 to the reference point of the BWP 3004 with index i2 (N start,μ BWP,i2 ) is the offset to

[0056] 4 is a diagram showing an example of the configuration of a resource grid 3001 according to one aspect of this embodiment. In the resource grid of FIG. 4, the horizontal axis represents OFDM symbol index l sym and the vertical axis is the subcarrier index ksc The resource grid 3001 is size,μ grid1,x N RB sc contains N subcarriers, subframe,μ symb Contains OFDM symbols. Within the grid, subcarrier index k sc and OFDM symbol index l sym The resource specified by is also called a resource element (RE).

[0057] Resource Block (RB) is N RB sc Contains consecutive subcarriers Resource blocks are divided into common resource blocks, physical resource blocks (PRBs), and virtual resource blocks (VRBs). Here, N RB sc =12.

[0058] A resource block unit is a set of resources corresponding to one OFDM symbol in one resource block, i.e., one resource block unit includes 12 resource elements corresponding to one OFDM symbol in one resource block.

[0059] The common resource blocks for a given subcarrier spacing setting μ are indexed in a given common resource block set in the frequency domain in ascending order starting from 0. The common resource block with index 0 for a given subcarrier spacing setting μ contains (or collides with, or coincides with) point 3000. The index n of the common resource block for a given subcarrier spacing setting μ μ CRB is nμ CRB =ceil(k sc / N RB sc ) relationship is satisfied. Here, k sc The subcarrier with 0 corresponds to point 3000. It is a subcarrier having the same center frequency as the center frequency of the subcarrier being used.

[0060] The physical resource blocks for a given subcarrier spacing setting μ are given as follows in a given BWP: The indexes are assigned in ascending order starting from 0 in the frequency domain. The index n of the physical resource block for a given subcarrier spacing setting μ is μ PRB is n μ CRB =n μ PRB +N start,μ BWP,i where N start,μ BWP,i denotes the reference point of the BWP with index i.

[0061] A BWP is defined as a subset of common resource blocks contained in a resource grid. The BWP is located at the reference point N of the BWP. start,μ BWP,i Starting with N size,μ BWP,i Common litho The BWP configured for a downlink carrier is also called a downlink BWP. The BWP configured for an uplink component carrier is also called an uplink BWP.

[0062] An antenna port may be defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed. For example, a channel may correspond to a physical channel, a symbol may correspond to an OFDM symbol, a symbol may correspond to a resource block unit, or a symbol may correspond to a resource element.

[0063] When the large-scale properties of the channel through which symbols are transmitted at one antenna port can be estimated from the channel through which symbols are transmitted at another antenna port, the two antenna ports are said to be Quasi Co-Located (QCL). Here, the large-scale characteristics may include at least long-range channel characteristics. The large-scale characteristics may include at least some or all of delay spread, Doppler spread, Doppler shift, average gain, average delay, and beam parameters (spatial Rx parameters). The first antenna port and the second antenna port are QCLs in terms of beam parameters when the receiving beam assumed by the receiving side for the first antenna port and the second antenna port are QCLs in terms of beam parameters. The first antenna port and the second antenna port are QCLs in terms of beam parameters when the transmission beam assumed by the receiver for the first antenna port is the same (or corresponds to) the transmission beam assumed by the receiver for the first antenna port. The transmission beam assumed by the receiving side for the second antenna port may be the same (or correspond to) the transmission beam assumed by the receiving side for the second antenna port. The 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. The fact that the two antenna ports are QCLs may mean that the two antenna ports are assumed to be QCLs.

[0064] Carrier aggregation is the process of providing multiple aggregated serving The carrier aggregation may be performed by using a cell. The carrier aggregation may be performed by using a plurality of aggregated component carriers. The carrier aggregation may be performed by using a plurality of aggregated downlink component carriers. The carrier aggregation may be performed by using a plurality of aggregated uplink component carriers.

[0065] 5 is a schematic block diagram showing an example of the configuration of a base station device 3 according to one aspect of the present embodiment. As shown in FIG. 5, the base station device 3 includes at least a radio transmission / reception unit (physical layer processing unit) 30 and / or part or all of a higher layer processing unit 34. The radio transmission / reception unit 30 includes an antenna unit 31, an RF (Radio Frequency) unit 32, and a base station The upper layer processing unit 34 includes at least a part or all of a media access control layer processing unit 35 and a part or all of a radio resource control (RRC) layer processing unit 36.

[0066] The wireless transceiver 30 includes at least a wireless transmitter 30a and part or all of a wireless receiver 30b. The baseband unit included in the wireless transmitter 30a and the baseband unit included in the wireless receiver 30b may have the same or different device configurations. The RF unit included in the wireless transmitter 30a and the RF unit included in the wireless receiver 30b may have the same or different device configurations. The antenna unit included in the wireless transmitter 30a and the wireless receiver The antenna units included in the receiving unit 30b may have the same or different device configurations.

[0067] For example, the radio transmitting unit 30a may generate and transmit a baseband signal of a PDSCH. For example, the radio transmitting unit 30a may generate and transmit a baseband signal of a PDCCH. For example, the radio transmitting unit 30a may generate and transmit a baseband signal of a PBCH. For example, the radio transmitting unit 30a may generate and transmit a baseband signal of a radio The wireless transmitter 30a may generate and transmit a baseband signal of the synchronization signal. The radio transmitter 30a may generate and transmit a baseband signal for the PDSCH DMRS. For example, the radio transmitter 30a may generate and transmit a baseband signal for the PDCCH DMRS. For example, the radio transmitter 30a may generate and transmit a baseband signal for the CSI-RS. For example, the radio transmitter 30a may generate and transmit a baseband signal for the DL PTRS.

[0068] For example, the radio receiver 30b may receive a PRACH. For example, the radio receiver 30b may receive and demodulate a PUCCH. For example, the radio receiver 30b may receive and demodulate a PUSCH. For example, the radio receiver 30b may receive a PUCCH DMRS. For example, the radio receiver 30b The radio receiver 30b may receive a PUSCH DMRS. For example, the radio receiver 30b may receive an UL PTRS. For example, the radio receiver 30b may receive an SRS.

[0069] The upper layer processing unit 34 outputs the downlink data (transport block) to the radio transceiver unit 30 (or the radio transmitter unit 30a). The upper layer processing unit 34 performs processing on the Medium Access Control (MAC) layer, the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the RRC layer.

[0070] The medium access control layer processing unit 35 included in the upper layer processing unit 34 performs MAC layer processing. The MAC layer processing may be processing by a MAC entity.

[0071] The radio resource control layer processing unit 36 ​​included in the upper layer processing unit 34 performs processing of the RRC layer. The RRC layer processing unit 36 ​​processes various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 36 ​​manages the RRC message received from the terminal device 1. Set the parameters based on the message.

[0072] The radio transceiver 30 (or the radio transmitter 30a) performs processing such as modulation and encoding. The radio transceiver 30 (or the radio transmitter 30a) modulates, encodes, and transmits downlink data. The radio transmission / reception unit 30 (or the radio transmission unit 30a) generates a physical signal by generating a baseband signal (converting it into a time-continuous signal) and transmits it to the terminal device 1. Alternatively, the signal may be arranged on a component carrier and transmitted to the terminal device 1.

[0073] The radio transmitting / receiving unit 30 (or the radio receiving unit 30b) performs processes such as demodulation and decoding. The wireless transceiver 30 (or the wireless receiver 30b) separates, demodulates, and The radio transmitting / receiving unit 30 (or the radio receiving unit 30b) may perform a channel access procedure prior to transmitting a physical signal.

[0074] The RF unit 32 converts (down-converts) the signal received via the antenna unit 31 into a baseband signal by quadrature demodulation, and removes unnecessary frequency components. The RF unit 32 outputs the processed analog signal to the baseband unit.

[0075] The baseband unit 33 converts the analog signal input from the RF unit 32 into The baseband unit 33 removes a portion corresponding to a CP (Cyclic Prefix) from the converted digital signal, and performs the following on the signal from which the CP has been removed: A fast Fourier transform (FFT) is performed to extract the frequency domain signal.

[0076] The baseband unit 33 performs an inverse fast Fourier transform (IFFT) on the data to generate OFDM symbols, adds a CP to the generated OFDM symbols, and outputs the baseband symbols. The baseband unit 33 generates a baseband digital signal, and converts the baseband digital signal into an analog signal. The baseband unit 33 outputs the converted analog signal to the RF unit 32.

[0077] The RF unit 32 uses a low-pass filter to remove unnecessary frequency components from the analog signal input from the baseband unit 33, and up-converts the analog signal to a carrier frequency. The RF unit 32 converts the received signal into a digital signal and transmits it via the antenna unit 31. The RF unit 32 may also have a function to control transmission power. The RF unit 32 is also referred to as a transmission power control unit.

[0078] For the terminal device 1, one or more serving cells (or component carriers, downlink component carriers, uplink component carriers) may be configured.

[0079] Each of the serving cells configured for the terminal device 1 is a PCell (Primary cell, The SpCell may be any of a PCell, a PSCell (Primary SCG cell), a PSCell (Primary SCG cell), and a SCell (Secondary Cell). It may refer to one or both of the PSCell and the PSCell.

[0080] The PCell is a serving cell included in an MCG (Master Cell Group). The PCell is a cell (cell) in which the terminal device 1 performs an initial connection establishment procedure or a connection re-establishment procedure. (cells where the treatment was performed).

[0081] A PSCell is a serving cell included in an SCG (Secondary Cell Group). , is the serving cell to which random access is performed by the terminal device 1.

[0082] An SCell may be included in either an MCG or an SCG.

[0083] A serving cell group (cell group) is a term that includes at least an MCG and an SCG. A serving cell group may include one or more serving cells (or component carriers). One or more serving cells (or component carriers) included in a serving cell group may be operated by carrier aggregation.

[0084] One or more downlink BWPs may be configured for each serving cell (or downlink component carrier). One or more uplink BWPs are configured for each component carrier. That's fine.

[0085] Of one or more downlink BWPs configured for a serving cell (or a downlink component carrier), one downlink BWP is set as the active downlink BWP. may be configured (or one downlink BWP may be activated). Of one or more uplink BWPs configured for a serving cell (or uplink component carrier), one uplink BWP is set as the active uplink BWP. (Alternatively, one uplink BWP may be activated).

[0086] The PDSCH, PDCCH, and CSI-RS may be received in an active downlink BWP. The terminal device 1 may attempt to receive the PDSCH, PDCCH, and CSI-RS in an active downlink BWP. The PUCCH and PUSCH are transmitted in an active uplink BWP. The terminal device 1 may transmit PUCCH and PUSCH in the active uplink BWP. The active downlink BWP and the active uplink BWP are also collectively referred to as the active BWP.

[0087] PDSCH, PDCCH, and CSI-RS are transmitted in downlink BWPs other than the active downlink BWP ( The terminal device 1 may not receive the signal in the inactive downlink BWP. In a downlink BWP that is not an active downlink BWP, the reception of PDSCH, PDCCH, and CSI-RS is PUCCH and PUSCH are not active uplink BWPs and therefore no transmission is attempted. It may not be transmitted in the downlink BWP (inactive uplink BWP). 1 may not transmit PUCCH and PUSCH in an uplink BWP that is not an active uplink BWP. Active BWPs are collectively referred to as inactive BWPs.

[0088] A downlink BWP switch is a process of switching one active UE in a serving cell. Deactivate the downlink BWP and deactivate the in-band BWP of the serving cell. This is the procedure to activate one of the active downlink BWPs. Downlink BWP switching may be controlled by the BWP field included in the downlink control information. Downlink BWP switching may also be controlled based on higher layer parameters. good.

[0089] Uplink BWP switching is used to deactivate one active uplink BWP and activate any inactive uplink BWP other than the one active uplink BWP. The handover may be controlled by the BWP field included in the downlink control information. BWP switching of a link may be controlled based on higher layer parameters.

[0090] Of one or more downlink BWPs configured for the serving cell, two or more A downlink BWP does not have to be set as the active downlink BWP. For a serving cell, one downlink BWP may be active at a given time.

[0091] Two or more of one or more uplink BWPs configured for the serving cell An uplink BWP does not have to be set as the active uplink BWP. For a serving cell, one uplink BWP may be active at a given time.

[0092] Fig. 6 is a schematic block diagram showing an example configuration of a terminal device 1 according to one aspect of the present embodiment. As shown in Fig. 6, the terminal device 1 includes at least one or all of a radio transmission / reception unit (physical layer processing unit) 10 and an upper layer processing unit 14. The radio transmission / reception unit 10 includes at least an antenna unit 11, an RF unit 12, and part or all of a baseband unit 13. The upper layer processing unit 14 includes at least a medium access control layer processing unit 15 and part or all of a radio resource control layer processing unit 16.

[0093] The wireless transceiver 10 includes at least a wireless transmitter 10a and a part or all of a wireless receiver 10b. The device configuration of the baseband unit 13 included in 10b may be the same or different. The RF unit 12 included in the wireless transmitting unit 10a and the RF unit 12 included in the wireless receiving unit 10b may have the same configuration or may have different configurations. The antenna unit 11 and the antenna unit 11 included in the wireless receiving unit 10b have the same device configuration. may or may not be the same.

[0094] For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PRACH. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUCCH. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUSCH. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUCCH DMRS. For example, the radio transmitting unit 10a may generate and transmit a baseband signal of a PUSCH. The unit 10a may generate and transmit a baseband signal of the PUSCH DMRS. The radio transmitter 10a may generate and transmit a baseband signal of an UL PTRS. For example, the radio transmitter 10a may generate and transmit a baseband signal of an SRS. Generating may be generating an SRS sequence.

[0095] For example, the radio receiver 10b may receive and demodulate the PDSCH. For example, the radio receiver 10b may receive and demodulate the PDCCH. For example, the wireless receiving unit 10b may receive a synchronization signal. The wireless receiver 10b may receive a PDSCH DMRS. For example, the wireless receiver 10b may receive a PDCCH DMRS. For example, the wireless receiver 10b may receive a CSI-RS. For example, the wireless receiver 10b may receive a DL PTRS.

[0096] The upper layer processing unit 14 outputs the uplink data (transport block) to the radio transceiver unit 10 (or the radio transmitter unit 10a). The upper layer processing unit 14 performs processing on the MAC layer, the integrated packet data protocol layer, the radio link control layer, and the RRC layer.

[0097] The medium access control layer processing unit 15 included in the upper layer processing unit 14 performs processing of the MAC layer.

[0098] The radio resource control layer processing unit 16 included in the upper layer processing unit 14 performs processing for the RRC layer. The RRC layer processing unit 16 processes various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 16 manages the RRC messages received from the base station device 3. Set RRC parameters based on the message.

[0099] The radio transmission / reception unit 10 (or the radio transmission unit 10a) performs processing such as modulation and encoding. The radio transceiver 10 (or the radio transmitter 10a) modulates, encodes, and transmits uplink data. The radio transmitter / receiver 10 (or the radio transmitter 10a) generates a physical signal by generating a baseband signal (converting it into a time-continuous signal) and transmits it to the base station device 3. It may be arranged in a certain BWP (active uplink BWP) and transmitted to the base station device 3.

[0100] The radio transmitting / receiving unit 10 (or the radio receiving unit 10b) performs processes such as demodulation and decoding. The radio transceiver 10 (or the radio receiver 30b) may receive a physical signal in a certain BWP (active downlink BWP) of a certain serving cell. The radio receiving unit 10b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information as The radio transmission / reception unit 10 (radio reception unit 10b) outputs the physical signal to the upper layer processing unit 14. A channel access procedure may be performed prior to the

[0101] The RF unit 12 converts (down-converts) the signal received via the antenna unit 11 into a baseband signal by quadrature demodulation, and removes unnecessary frequency components. The analog signal processed by the digital signal processing unit 12 is output to the baseband unit 13 .

[0102] The baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal. The baseband unit 13 extracts a cyclic prefix (CP) from the converted digital signal. The signal from which the CP has been removed is subjected to a fast Fourier transform (FFT) to extract the signal in the frequency domain.

[0103] The baseband unit 13 performs an inverse fast Fourier transform (IFFT) on the uplink data to generate an OFDM symbol, and adds a CP to the generated OFDM symbol. The baseband unit 13 converts the baseband digital signal into an analog signal, and outputs the converted analog signal to the RF unit 12.

[0104] The RF unit 12 uses a low-pass filter to remove unnecessary frequency components from the analog signal input from the baseband unit 13, and up-converts the analog signal to a carrier frequency. The RF unit 12 converts the received signal into a digital signal and transmits it via the antenna unit 11. The RF unit 12 may also have a function to control transmission power. The RF unit 12 is also referred to as a transmission power control unit.

[0105] The physical signals (signals) will be explained below.

[0106] The physical signal is a general term for a downlink physical channel, a downlink physical signal, an uplink physical channel, and an uplink physical channel. The physical channel is a general term for a downlink physical channel and an uplink physical channel. The physical signal is a general term for a downlink physical signal and an uplink physical signal.

[0107] The uplink physical channel may correspond to a set of resource elements that convey information generated in a higher layer. The uplink physical channel may be a physical channel used in an uplink component carrier. The uplink physical channel may be transmitted by a terminal device 1. The uplink physical channel may be received by a base station device 3. In a wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical channels may be used. ·PUCCH (Physical Uplink Control CHannel) ·PUSCH (Physical Uplink Shared CHannel) ·PRACH(Physical Random Access CHannel)

[0108] PUCCH is used to transmit uplink control information (UCI). The PUCCH may be used. The PUCCH may be transmitted to deliver (deliver, transmit, convey) uplink control information. The uplink control information may be mapped to the PUCCH. The terminal device 1 may transmit the PUCCH in which the uplink control information is mapped. Base station The device 3 may receive a PUCCH in which the uplink control information is arranged.

[0109] Uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) is used in combination with channel state information (CSI), schedule The packet contains at least part or all of the Scheduling Request (SR) and Hybrid Automatic Repeat request ACKnowledgement (HARQ-ACK) information.

[0110] The channel state information is also referred to as a channel state information bit or a channel state information sequence. The scheduling request is also referred to as a scheduling request bit or a scheduling request sequence. The HARQ-ACK information is also referred to as a HARQ-ACK information bit or a HARQ-ACK information sequence.

[0111] The HARQ-ACK information may include at least a HARQ-ACK corresponding to a transport block (TB). The HARQ-ACK may indicate an acknowledgement (ACK) or a negative acknowledgement (NACK) corresponding to the transport block. The HARQ-ACK information may include a HARQ-ACK codebook containing one or more HARQ-ACK bits.

[0112] A transport block is a sequence of information bits delivered from higher layers. Here, the sequence of information bits is also called a bit sequence. Here, the transport block may be transmitted via an Uplink-Shared Channel (UL-SCH) in the transport layer.

[0113] When HARQ-ACK for a transport block is referred to as HARQ-ACK for a PDSCH In this case, "HARQ-ACK for PDSCH" indicates HARQ-ACK for a transport block included in the PDSCH.

[0114] HARQ-ACK is performed for one CBG (Code Block Group) included in a transport block. It may also indicate a corresponding ACK or NACK.

[0115] The scheduling request may be used at least to request resources of the UL-SCH for an initial transmission. The scheduling request bit may be used to indicate either a positive SR or a negative SR. When the scheduling request bit indicates a positive SR, this is also referred to as "a positive SR is transmitted." A positive SR indicates that the terminal device 1 has requested resources of the UL-SCH for an initial transmission. A negative SR may indicate that resources are requested. A positive SR may indicate that a scheduling request is triggered by a higher layer. A positive SR may be transmitted when a scheduling request is indicated by a higher layer. The scheduling request bit indicating a negative SR is also referred to as "a negative SR is transmitted." A negative SR may indicate that no UL-SCH resources are requested by the terminal device 1 for the initial transmission. A negative SR may indicate that no scheduling request is triggered by a higher layer. A negative SR may be conveyed if no scheduling request is indicated by higher layers.

[0116] The channel state information may include at least some or all of a Channel Quality Indicator (CQI), a Precoder Matrix Indicator (PMI), and a Rank Indicator (RI). The CQI is an indicator related to the quality of a propagation path (e.g., propagation strength) or the quality of a physical channel, and the PMI is an indicator related to a precoder. RI is an index related to the transmission rank (or the number of transmission layers).

[0117] The channel state information is an indicator related to the reception state of at least a physical signal (e.g., CSI-RS) used for channel measurement. The value of the channel state information may be determined by the terminal device 1 based on the reception state assumed by at least a physical signal used for channel measurement. The channel measurement may include interference measurement.

[0118] The PUCCH may correspond to a PUCCH format. The PUCCH may be a set of resource elements used to convey the PUCCH format. The PUCCH may include a PUCCH format. The PUCCH may be transmitted with a certain PUCCH format. The PUCCH format may be interpreted as a format of information. The PUCCH format may also be interpreted as a set of information set in a certain information format.

[0119] The PUSCH carries transport blocks and / or uplink control information. The transport block may be placed on the PUSCH. The transport block delivered by the UL-SCH may be placed on the PUSCH. The forwarding control information may be arranged in the PUSCH. A PUSCH in which one or both of the uplink control information and the PUSCH are arranged may be transmitted. The base station device 3 may receive a PUSCH in which one or both of a transport block and uplink control information are allocated.

[0120] The PRACH may be transmitted to carry a random access preamble. The base station device 1 may transmit the PRACH. The base station device 3 may receive the PRACH. column x u,v (n) is x u,v (n)=x u(mod(n+C v ,L RA )), where x u is a ZC (Zadoff-Chu) sequence. u x u =exp(-jπui(i+1) / L RA ) by may be defined. j is the imaginary unit. Also, π is the ratio of the circumference of a circle to its circumference. Also, C v corresponds to the cyclic shift of the PRACH sequence. RA corresponds to the length of the PRACH sequence. RA is 839 or 139. Also, i ranges from 0 to L RA is an integer in the range of -1, and u is the sequence index for the PRACH sequence.

[0121] For each PRACH opportunity, 64 random access preambles are defined. The access preamble is the cyclic shift C of the PRACH sequence. v , and the sequence index u for the PRACH sequence. An index may be assigned to each of the bulls.

[0122] The uplink physical signal may correspond to a set of resource elements. The uplink physical signal does not have to be used to transmit information generated in a higher layer. The uplink physical signal may be used to transmit information generated in a physical layer. The uplink physical signal may be a physical signal used in an uplink component carrier. The terminal device 1 may transmit the uplink physical signal. The base station device 3 may receive the uplink physical signal. In a wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical signals may be used. ·UL DMRS(UpLink Demodulation Reference Signal) ·SRS(Sounding Reference Signal) ·UL PTRS(UpLink Phase Tracking Reference Signal)

[0123] UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.

[0124] The set of antenna ports for DMRS for PUSCH (DMRS related to PUSCH, DMRS included in PUSCH, DMRS corresponding to PUSCH) is given based on the set of antenna ports for the PUSCH. For example, the set of antenna ports of a DMRS for a PUSCH may be the same as the set of antenna ports for the PUSCH.

[0125] The transmission of the PUSCH and the transmission of the DMRS for the PUSCH are indicated by one DCI format. The PUSCH and the DMRS for the PUSCH may be collectively referred to as a PUSCH. Transmitting the PUSCH may be equivalent to transmitting the PUSCH and the DMRS for the PUSCH.

[0126] The propagation path of the PUSCH may be estimated from the DMRS for the PUSCH.

[0127] 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.

[0128] The transmission of the PUCCH and the transmission of the DMRS for the PUCCH are indicated by one DCI format. Mapping of PUCCH to resource elements (resource element mapping), and to the resource elements of the DMRS for the PUCCH One or both of the mappings may be provided by one PUCCH format. The PUCCH and the DMRS for the PUCCH may be collectively referred to as the PUCCH. This may involve transmitting a PUCCH and a DMRS for the PUCCH.

[0129] The propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.

[0130] The downlink physical channel may correspond to a set of resource elements that convey information generated in a higher layer. The downlink physical channel may be a physical channel used in a downlink component carrier. The base station device 3 may transmit the downlink physical channel. The terminal device 1 may receive the downlink physical channel. In a wireless communication system according to one aspect of this embodiment, at least some or all of the following downlink physical channels may be used. ·PBCH(Physical Broadcast Channel) ·PDCCH (Physical Downlink Control Channel) ·PDSCH(Physical Downlink Shared Channel)

[0131] The PBCH may be transmitted to convey one or both of a Master Information Block (MIB) and physical layer control information. Here, the physical layer control information is information generated in the physical layer. The MIB is a set of parameters placed on a Broadcast Control Channel (BCCH), which is a logical channel of the MAC layer. The BCCH is a channel of the transport layer. The MIB and / or physical layer control information may be mapped to a certain BCH. The BCH may be mapped to a PBCH. The terminal device 1 may receive a PBCH in which one or both of the MIB and the physical layer control information are mapped. The base station device 3 may transmit a PBCH in which one or both of the MIB and the physical layer control information are mapped. stomach.

[0132] For example, the physical layer control information may be configured with 8 bits. The physical layer control information may include at least some or all of the following 0A to 0D. 0A) Radio frame bit 0B) Half radio frame (half system frame, half frame) bit 0C) SS / PBCH block index bit 0D) Subcarrier offset bit

[0133] The radio frame bits are used to indicate the radio frame in which the PBCH is transmitted (the radio frame including the slot in which the PBCH is transmitted). The radio frame bits include 4 bits. The radio frame bits may be configured by 4 bits of a 10-bit radio frame indicator. For example, the radio frame indicator may be used to identify at least radio frames with index 0 to index 1023.

[0134] The half radio frame bit is used to indicate whether the PBCH is transmitted in the first five subframes or the last five subframes of a radio frame in which the PBCH is transmitted. Here, a half radio frame may be configured to include five subframes. Alternatively, a half radio frame may be configured to include the first five subframes of ten subframes included in a radio frame. Alternatively, a half radio frame may be configured to include the last five subframes of ten subframes included in a radio frame.

[0135] The SS / PBCH block index bits are used to indicate the SS / PBCH block index. The SS / PBCH block index bits include 3 bits. The SS / PBCH block index bits may be configured with 3 bits of a 6-bit SS / PBCH block index indicator. The SS / PBCH block index indicator may be used at least to identify SS / PBCH blocks from index 0 to index 63. The SS / PBCH blocks may be referred to as SSBs.

[0136] The subcarrier offset bits are used to indicate a subcarrier offset, which may be used to indicate the difference between the first subcarrier to which the PBCH is mapped and the first subcarrier to which the control resource set with index 0 is mapped.

[0137] The PDCCH may be transmitted to convey downlink control information (DCI). The downlink control information may be mapped to the PDCCH. The base station device 3 may receive the PDCCH in which the downlink control information is arranged. A PDCCH in which downlink control information is allocated may be transmitted.

[0138] The downlink control information may be transmitted with a DCI format. The DCI format may be interpreted as a format of the downlink control information. The DCI format may be It may also be interpreted as a set of downlink control information set in a certain downlink control information format.

[0139] 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. The link DCI format is a general term for DCI format 0_0, DCI format 0_1, and DCI format 0_2. The downlink DCI format is DCI format 1_0, DCI format 2_1, and DCI format 3_2. This is a general term for Format 1_1 and DCI Format 1_2.

[0140] DCI format 0_0 is used for scheduling PUSCHs allocated to a cell. DCI format 0_0 is configured to include at least some or all of 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)

[0141] The DCI format specific field is a DCI format specific field. The DCI format specification field may indicate whether the format is an uplink DCI format or a downlink DCI format. That is, the DCI format specification field may be included in both the uplink DCI format and the downlink DCI format. Here, DCI format 0_0 The DCI format specific field included in may indicate 0.

[0142] The frequency domain resource allocation field included in DCI format 0_0 is used for PUSCH. It may be used to indicate the allocation of frequency resources for

[0143] The time domain resource allocation field included in DCI format 0_0 is for PUSCH. may be used to indicate the allocation of time resources.

[0144] The frequency hopping flag field indicates whether frequency hopping is applied to the PUSCH. It may be used to indicate whether or not

[0145] The MCS field included in DCI format 0_0 may be used to indicate at least one of a modulation scheme and a target coding rate for the PUSCH. The target coding rate is the target coding rate for the transport block assigned to the PUSCH. The size of the transport block (TBS) allocated to the PUSCH may be determined based on the target coding rate and / or the modulation scheme for the PUSCH. The decision may be based on the method.

[0146] DCI format 0_0 may not include fields used for CSI requests.

[0147] DCI format 0_0 may not include a carrier indicator field. That is, the uplink in which the PUSCH scheduled by DCI format 0_0 is allocated The serving cell to which the component carrier belongs transmits a PDCCH including the DCI format 0_0. The terminal device 1 may detect DCI format 0_0 in a certain downlink component carrier of a certain serving cell, and then allocate a PUSCH scheduled by the DCI format 0_0 to the uplink component carrier of the certain serving cell. It may be recognized that

[0148] DCI format 0_0 may not include a BWP field. Here, DCI format 0_0 may be a DCI format for scheduling a PUSCH without changing an active uplink BWP. Based on detecting DCI format 0_0 used for scheduling a PUSCH, the terminal device 1 may recognize that the PUSCH will be transmitted without switching the active uplink BWP.

[0149] DCI format 0_1 ​​is used for scheduling PUSCHs allocated to a cell. DCI format 0_1 ​​is configured to include at least some or all of fields 2A to 2H. 2A) DCI format specific fields 2B) Frequency domain resource allocation field 2C) Uplink time domain resource allocation field 2D) Frequency hopping flag field 2E) MCS Field 2F) CSI request field 2G) BWP field 2H) Carrier indicator field

[0150] The DCI format specific field included in DCI format 0_1 ​​may indicate 0. .

[0151] The frequency domain resource allocation field included in DCI format 0_1 ​​is used for PUSCH. It may be used to indicate the allocation of frequency resources for

[0152] The time domain resource allocation field included in DCI format 0_1 ​​is for PUSCH. may be used to indicate the allocation of time resources.

[0153] The MCS field included in DCI format 0_1 ​​may be used to indicate at least part or all of the modulation scheme and / or target coding rate for the PUSCH.

[0154] The BWP field of DCI format 0_1 ​​is scheduled by the DCI format 0_1. It may be used to indicate the uplink BWP in which the PUSCH to be mapped is located. Format 0_1 ​​may involve a change of the active uplink BWP. The terminal device 1 may recognize the uplink BWP in which the PUSCH is arranged based on detecting DCI format 0_1 ​​used for scheduling the PUSCH.

[0155] The DCI format 0_1 ​​that does not include a BWP field may be a DCI format for scheduling a PUSCH without changing the active uplink BWP. The terminal device 1 may switch the active uplink BWP based on detecting the DCI format 0_1 ​​that is used for scheduling a PUSCH and does not include a BWP field. Alternatively, it may be recognized that the PUSCH is to be transmitted without switching.

[0156] DCI format 0_1 ​​includes a BWP field, but terminal device 1 does not use DCI format 0_1 If the BWP switching function by terminal device 1 is not supported, the BWP field is That is, the terminal device 1 that does not support the BWP switching function may use DCI format 0_1 ​​used for PUSCH scheduling and may ignore the BWP field. Switching the active uplink BWP based on detecting DCI format 0_1 ​​including Here, if the terminal device 1 supports the BWP switching function, it may report that "the terminal device 1 supports the BWP switching function" in the RRC layer capability information reporting procedure.

[0157] The CSI request field is used to indicate the reporting of CSI.

[0158] If the DCI format 0_1 ​​includes a carrier indicator field, the carrier indicator field indicates the uplink component carrier on which the PUSCH is allocated. If the DCI format 0_1 ​​does not include a carrier indicator field, the uplink component carrier on which the PUSCH is arranged may be the uplink component carrier on which the PDCCH including the DCI format 0_1 ​​used for scheduling the PUSCH is arranged. When the number of uplink component carriers configured in the terminal device 1 in a certain serving cell group is two or more (when uplink carrier aggregation is operated in a certain serving cell group), the PUSCH used for scheduling the PUSCH allocated to the certain serving cell group may be the same as the component carrier. The number of bits of the carrier indicator field included in the DCI format 0_1 ​​used for scheduling the PUSCH allocated to the serving cell group may be 1 bit or more (for example, 3 bits). When the number of uplink component carriers configured in the terminal device 1 in a certain serving cell group is 1 (when uplink carrier aggregation is not operated in a certain serving cell group), the number of bits of the carrier indicator field included in the DCI format 0_1 ​​used for scheduling the PUSCH allocated to the certain serving cell group may be 0 bit or more. (Alternatively, the PUSCH schedule allocated to the certain serving cell group may be (The DCI format 0_1 ​​used for routing may not include the carrier indicator field).

[0159] DCI format 1_0 is used for scheduling PDSCHs allocated to a cell. DCI format 1_0 is configured to include at least some or all of 3A to 3F. 3A) DCI Format Specific Fields 3B) Frequency domain resource allocation field 3C) Time Domain Resource Allocation Field 3D) MCS field 3E) PDSCH_HARQ feedback timing indicator field 3F) PUCCH resource indicator field

[0160] The DCI format specific field included in DCI format 1_0 may indicate 1. .

[0161] The frequency domain resource allocation field included in DCI format 1_0 is It may be used at least to indicate the allocation of frequency resources for

[0162] The time domain resource allocation field included in DCI format 1_0 is may be used at least to indicate the allocation of time resources.

[0163] The MCS field included in DCI format 1_0 may be used to indicate at least one of a modulation scheme and a target coding rate for the PDSCH. The target coding rate for the transport block placed in the PDSCH is The size of the transport block (TBS) allocated to the PDSCH may be determined based on the target coding rate and / or the modulation scheme for the PDSCH. The decision may be based on the method.

[0164] The PDSCH_HARQ feedback timing indication field specifies the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH. It may also be used to indicate a

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

[0166] DCI format 1_0 may not include a carrier indicator field. That is, the downlink in which the PDSCH scheduled by DCI format 1_0 is allocated The component carrier is a downlink on which a PDCCH including the DCI format 1_0 is arranged. The terminal device 1 may detect DCI format 1_0 in a certain downlink component carrier and determine the DCI format 1_0 based on the DCI format 1_0. It may be recognized that the PDSCH scheduled by the downlink component carrier 1_0 is placed on the downlink component carrier.

[0167] DCI format 1_0 may not include a BWP field. Here, DCI format 1_0 may be a DCI format for scheduling a PDSCH without changing an active downlink BWP. The 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.

[0168] DCI format 1_1 is used for scheduling PDSCHs allocated to a cell. DCI format 1_1 is configured to include at least some or all of 4A to 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 indication field 4G) PUCCH resource indication field 4H) BWP Field 4I) Career Indicator Field

[0169] The DCI format specific field included in DCI format 1_1 may indicate 1 .

[0170] The frequency domain resource allocation field included in DCI format 1_1 is It may be used at least to indicate the allocation of frequency resources for

[0171] The time domain resource allocation field included in DCI format 1_1 is may be used at least to indicate the allocation of time resources.

[0172] 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 the PDSCH.

[0173] DCI format 1_1 includes the PDSCH_HARQ feedback timing indication field In this case, the PDSCH_HARQ feedback timing indication field is set from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH. If the PDSCH_HARQ feedback timing indication field is not included in DCI format 1_1, the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH may be used. The offset may be specified by a higher layer parameter.

[0174] The PUCCH resource indication field may be a field indicating an index of one or more PUCCH resources included in a PUCCH resource set.

[0175] The BWP field of DCI format 1_1 is scheduled by the DCI format 1_1. It may be used to indicate the downlink BWP where the PDSCH to be mapped is located. Format 1_1 may involve a change in the active downlink BWP. The terminal device 1 may recognize the downlink BWP in which the PUSCH is arranged based on detecting DCI format 1_1 used for scheduling the PDSCH.

[0176] The DCI format 1_1 that does not include a BWP field may be a DCI format for scheduling a PDSCH without changing the active downlink BWP. The terminal device 1 detects the DCI format 1_1 that is used for scheduling a PDSCH and does not include a BWP field, and determines whether to switch the active downlink BWP. It may be possible to recognize that the PDSCH is received without switching.

[0177] DCI format 1_1 includes a BWP field, but terminal device 1 does not use DCI format 1_1 If the terminal device 1 does not support the BWP switching function, the BWP field may be ignored by the terminal device 1. In other words, the terminal device 1 that does not support the BWP switching function uses DCI format 1_1 used for PDSCH scheduling and the BWP field Switching the active downlink BWP based on detecting DCI format 1_1 containing Here, if the terminal device 1 supports the BWP switching function, it may report that "the terminal device 1 supports the BWP switching function" in the RRC layer capability information reporting procedure.

[0178] When the DCI format 1_1 includes a carrier indicator field, the carrier indicator field indicates the downlink component carrier on which the PDSCH is arranged. If the DCI format 1_1 does not include a carrier indicator field, the downlink component carrier on which the PDSCH is arranged may be the downlink component carrier on which the PDCCH including the DCI format 1_1 used for scheduling the PDSCH is arranged. When the number of downlink component carriers configured in the terminal device 1 in a certain serving cell group is two or more (when downlink carrier aggregation is operated in a certain serving cell group), the PDSCH used for scheduling the PDSCH allocated to the certain serving cell group may be the same as the component carrier. The number of bits of the carrier indicator field included in the DCI format 1_1 used for scheduling the PDSCH allocated to the serving cell group may be 1 bit or more (for example, 3 bits). When the number of downlink component carriers configured in the terminal device 1 in a certain serving cell group is 1 (when downlink carrier aggregation is not operated in a certain serving cell group), the number of bits of the carrier indicator field included in the DCI format 1_1 used for scheduling the PDSCH allocated to the certain serving cell group may be 0 bit or more. (or, the PDSCH schedule allocated to the certain serving cell group may be The DCI format 1_1 used for routing includes a carrier indicator field. (It does not have to be.)

[0179] The PDSCH may be transmitted to transmit a transport block. The PDSCH may be used to transmit a transport block delivered by the DL-SCH. The PDSCH may be used to transmit a transport block. The transport block may be placed on the PDSCH. The transport block corresponding to the DL-SCH is placed on the PDSCH. The base station device 3 may transmit the PDSCH, and the terminal device 1 may receive the PDSCH.

[0180] The downlink physical signal may correspond to a set of resource elements. The downlink physical signal may not carry information generated in a higher layer. The downlink physical signal may be a physical signal used in a downlink component carrier. The downlink physical signal may be transmitted by a base station device 3. The downlink physical signal may be transmitted by a 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)

[0181] The synchronization signal may be used by the terminal device 1 to synchronize one or both of the frequency domain and the time domain of the downlink. The synchronization signal is a general term for a PSS (Primary Synchronization Signal) and an SSS (Secondary Synchronization Signal).

[0182] FIG. 7 is a diagram showing an example of the configuration of an SS / PBCH block according to one aspect of this embodiment. In FIG. 7, the horizontal axis is the time axis (OFDM symbol index l sym ), where the vertical axis represents the frequency domain. Block 700 represents a set of resource elements for the PSS. Block 720 shows the set of resource elements for SSS. Blocks 710, 711, 712, and 713 indicate a set of resource elements for the PBCH and DMRS for the PBCH (DMRS associated with the PBCH, DMRS included in the PBCH, and DMRS corresponding to the PBCH).

[0183] As shown in Figure 7, the SS / PBCH block includes a PSS, SSS, and PBCH. The SS / PBCH block includes four consecutive OFDM symbols. The SS / PBCH block includes 240 subcarriers. The PSS is the 57th to 183rd subcarriers in the first OFDM symbol. The SSS is located in the 57th to 183rd subcarriers in the third OFDM symbol. The PBCH is allocated to the 1st subcarrier of the first OFDM symbol. Zeros may be set to the 1st to 56th subcarriers of the first OFDM symbol. Zeros may be set to the 184th to 240th subcarriers of the first OFDM symbol. Zeros may be set to the 49th to 56th subcarriers of the third OFDM symbol. Zeros may be set to the 184th to 192nd subcarriers of the third OFDM symbol. The PBCH is allocated to the 1st to 240th subcarriers of the second OFDM symbol, which are subcarriers where DMRS for the PBCH is not allocated. The PBCH is allocated to the 1st to 48th subcarriers of the third OFDM symbol, which are subcarriers where DMRS for the PBCH is not allocated. The PBCH is allocated to the 193rd to 240th subcarriers of the third OFDM symbol, which are subcarriers where DMRS for the PBCH is not allocated. The PBCH is allocated to the 1st to 240th subcarriers of the fourth OFDM symbol, which are subcarriers to which the DMRS for the PBCH is not allocated.

[0184] The antenna ports for the PSS, SSS, PBCH, and DMRS for the PBCH may be the same.

[0185] The PBCH on which the PBCH symbol is transmitted at a certain antenna port may be estimated by the DMRS for the PBCH that is placed in the slot to which the PBCH is mapped and is included in the SS / PBCH block to which the PBCH belongs.

[0186] DL DMRS is a general term for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.

[0187] The set of antenna ports for DMRS for PDSCH (DMRS related to PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) is given based on the set of antenna ports for the PDSCH. That is, the set of antenna ports of the DMRS for the PDSCH may be the same as the set of antenna ports for the PDSCH.

[0188] The transmission of the PDSCH and the transmission of the DMRS for the PDSCH are indicated by one DCI format. The PDSCH and the DMRS for the PDSCH may be collectively referred to as the PDSCH. Transmitting the PDSCH may be equivalent to transmitting the PDSCH and the DMRS for the PDSCH.

[0189] The propagation path of a PDSCH may be estimated from the DMRS for that PDSCH. A set of resource elements on which a DMRS symbol is transmitted and the DMRS symbol for the PDSCH are transmitted. When a set of resource elements on which symbols of a PDSCH are transmitted is included in the same precoding resource group (PRG), the PDSCH on which the symbols of the PDSCH of a certain antenna port are transmitted may be estimated by the DMRS for the PDSCH.

[0190] The antenna port of the DMRS for the PDCCH (DMRS related to the PDCCH, DMRS included in the PDCCH, DMRS corresponding to the PDCCH) may be the same as the antenna port for the PDCCH.

[0191] The PDCCH may be estimated from the DMRS for the PDCCH, i.e., the propagation path of the PDCCH may be estimated from the DMRS for the PDCCH. a set of resource elements and a resource on which the DMRS symbols for the PDCCH are transmitted; If the same precoder is applied (or is assumed to be applied) to a set of elements, the symbols of the PDCCH on a certain antenna port are transmitted. The PDCCH to be used may be estimated by the DMRS for the PDCCH.

[0192] 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). do.

[0193] The BCH of the transport layer is mapped to the PBCH of the physical layer. The transport blocks that pass through the BCH are delivered to the PBCH of the physical layer. The UL-SCH at the transport layer is mapped to the PUSCH at the physical layer, i.e., the transport block carried on the UL-SCH at the transport layer is delivered to the PUSCH at the physical layer. The DL-SCH of the transport layer is mapped to the PDSCH of the physical layer, i.e., the transport block carried by the DL-SCH of the transport layer is delivered to the PDSCH of the physical layer.

[0194] One UL-SCH and one DL-SCH may be provided for each serving cell. The BCH may be provided for the PCell. The BCH does not necessarily have to be provided for the PSCell or SCell.

[0195] In the MAC layer, HARQ (Hybrid Automatic Repeat reQuest) control is performed for each transport block.

[0196] BCCH (Broadcast Control CHannel), CCCH (Common Control CHannel), and DCCH (Dedicated Control CHannel) are logical channels. For example, BCCH is a MIB, Or, it is a channel of the RRC layer used to transmit system information. (Common Control CHannel) transmits common RRC messages to multiple terminal devices 1. Here, the CCCH may be used for, for example, a terminal device that is not RRC connected. 1. In addition, the DCCH (Dedicated Control CHannel) may be used for the terminal device. 1, where DCCH may be used to transmit RRC messages dedicated to may be used, for example, for a terminal device 1 that is in an RRC connection.

[0197] For example, system information (SI) may be composed of MIB and several SIBs (System Information blocks). Also, system information may be divided into Minimum SI and Other SI. Minimum SI may include basic information required for initial access. Furthermore, Minimum SI may include information for acquiring Other SI. Minimum SI may be composed of MIB and SIB1. Other SI is notified by Minimum SI. This may include all SIBs that are not broadcast or transmitted in the DL-SCH.

[0198] SIB1 may define the scheduling of Other SI. SIB1 may contain information required for initial access. SIB1 may be referred to as RMSI (Remaining Minimum SI). SIB1 may be periodically left on DL-SCH. SIB1 is used in the RRC_CONNECTED state. The UEs may be sent in a dedicated manner on the DL-SCH to some UEs in the DL-SCH.

[0199] Upper layer parameters that are common to multiple terminal devices 1 are also referred to as common upper layer parameters. Here, the common upper layer parameters may be defined as parameters specific to a serving cell. Here, parameters specific to a serving cell are parameters that are common to terminal devices (e.g., terminal devices 1-A, B, C) in which the serving cell is set. It may also be a

[0200] For example, the common upper layer parameters may be included in the RRC messages delivered on the BCCH. For example, common upper layer parameters may be included in RRC messages delivered on the DCCH. .

[0201] Among certain upper layer parameters, upper layer parameters different from common upper layer parameters are also referred to as dedicated upper layer parameters. Here, the dedicated upper layer parameters can provide dedicated RRC parameters to the terminal device 1-A in which the serving cell is configured. In other words, the dedicated RRC parameters are upper layer parameters that can provide unique settings for each of the terminal devices 1-A, 1-B, and 1-C.

[0202] The logical channel BCCH is mapped to the transport layer BCH or DL-SCH. For example, transport blocks containing MIB information are delivered on the BCH of the transport layer. Transport blocks containing non-MIB system information are delivered on the transport layer. The CCCH is mapped to either the DL-SCH or the UL-SCH. That is, a transport block mapped to the CCCH is delivered to either the DL-SCH or the UL-SCH. The DCCH is mapped to either the DL-SCH or the UL-SCH. That is, a transport block mapped to the DCCH is delivered to either the DL-SCH or the UL-SCH.

[0203] The RRC message includes one or more parameters managed in the RRC layer. Here, the parameters managed in the RRC layer are also referred to as RRC parameters. For example, The message may include an MIB. The RRC message may also include system information. The RRC message may also include a message corresponding to a CCCH. The RRC message may also include a message corresponding to a DCCH. An RRC message including a message corresponding to a DCCH is also referred to as a dedicated RRC message.

[0204] The upper layer parameters are RRC parameters or parameters included in MAC CE (Medium Access Control Control Element). That is, the upper layer parameters include MIB, system information, messages corresponding to CCCH, and messages corresponding to DCCH. The MAC CE is a general term for the parameters included in the MAC CE (Control Element) command.

[0205] The procedure performed by the terminal device 1 includes at least some or all of the following steps 5A to 5C. 5A) Cell Search 5B) Random Access 5C) Data communication

[0206] The cell search is a procedure used by the terminal device 1 to synchronize with a certain cell in the time domain and the frequency domain and detect a physical cell identity. That is, the terminal device 1 may perform the cell search to synchronize with a certain cell in the time domain and the frequency domain and detect a physical cell ID.

[0207] The sequence of PSSs is based at least on a physical cell ID. The sequence of SSSs is based at least on a physical cell ID.

[0208] The SS / PBCH block candidates indicate resources on which transmission of the SS / PBCH block is permitted (possibly, reserved, configured, defined, possible).

[0209] The set of SS / PBCH block candidates in a half radio frame is also called the SS burst set. The SS burst set is a set of candidates for the transmission window. It is also called the SS transmission window, the DRS transmission window, or the Discovery Reference Signal transmission window. The SS burst set is a general term that includes at least the first SS burst set and the second SS burst set.

[0210] The base station device 3 transmits SS / PBCH blocks of one or more indexes at a predetermined period. The terminal device 1 may detect at least one of the SS / PBCH blocks of the one or more indexes and attempt to decode the PBCH included in the SS / PBCH block.

[0211] Random access is a procedure that includes at least some or all of message 1, message 2, message 3, and message 4.

[0212] Message 1 is a procedure for transmitting a PRACH by the terminal device 1. The terminal device 1 A PRACH is transmitted in one PRACH opportunity selected from one or more PRACH opportunities based at least on an index of a SS / PBCH block candidate detected based on a cell search. Each PRACH opportunity is defined based on at least time and frequency domain resources. can be.

[0213] The terminal device 1 transmits one random access preamble selected from the PRACH opportunities corresponding to the index of the SS / PBCH block candidate in which the SS / PBCH block is detected. .

[0214] Message 2 is a procedure in which the terminal device 1 attempts to detect DCI format 1_0 with a CRC (Cyclic Redundancy Check) scrambled with an RA-RNTI (Random Access - Radio Network Temporary Identifier). / A control resource set given based on the MIB included in the PBCH included in the PBCH block; And, in the resource indicated based on the setting of the search area set, the DCI format Message 2 is also called a random access response. can be.

[0215] Message 3 is a procedure for transmitting a PUSCH scheduled by a random access response grant included in DCI format 1_0 detected by the message 2 procedure. Here, the random access response grant is sent to the MAC CE included in the PDSCH scheduled by the DCI format 1_0. This is shown by the following.

[0216] The PUSCH scheduled based on the random access response grant is Message 3 PUSCH is either a collision resolution ID or a PUSCH. (contention resolution identifier) ​​Includes MAC CE. Contention Resolution ID MAC CE includes a contention resolution ID.

[0217] Message 3 PUSCH retransmissions are scheduled using DCI format 0_0 with CRC scrambled based on TC-RNTI (Temporary Cell - Radio Network Temporary Identifier). It will be rated.

[0218] Message 4 attempts to detect DCI format 1_0 with a CRC scrambled based on either the C-RNTI (Cell - Radio Network Temporary Identifier) ​​or the TC-RNTI. The terminal device 1 receives a PDSCH scheduled based on the DCI format 1_0. The PDSCH may include a collision resolution ID.

[0219] Data communication is a general term for downlink communication and uplink communication.

[0220] In data communication, the terminal device 1 attempts to detect the PDCCH in the resources specified based on the control resource set and the search space set (monitors the PDCCH, detects the PDCCH, etc.). monitor).

[0221] A control resource set is a set of resources consisting of a predetermined number of resource blocks and a predetermined number of OFDM symbols. In the frequency domain, a control resource set may consist of contiguous resources (non-interleaved mapping) or distributed resources. (interleaver mapping).

[0222] A set of resource blocks constituting the control resource set may be indicated by a higher layer parameter, and the number of OFDM symbols constituting the control resource set may be indicated by a higher layer parameter.

[0223] One CORESET pool index may be provided for one or more Control Resource Sets (CORESETs). The call index may be provided by a higher layer parameter. If not provided by the 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 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. For example, a CORESET pool index of value 0 may be provided for the first plurality of CORESETs.

[0224] The terminal device 1 performs a first procedure for reporting HARQ-ACK information related to the first CORESETs. The terminal device 1 may apply a second procedure for reporting HARQ-ACK information associated with the first and second CORESETs. The terminal device 1 may apply the first procedure and the second procedure separately. The first CORESETs and the second CORESETs may be CORESETs in an active downlink BWP of one serving cell. A CORESET pool index of value 0 may be provided for the first CORESETs. A CORESET pool index of value 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.

[0225] The TCI state (Transmission Configuration Indication state) is in DCI format. One or more TCI state configurations (or a list of configurations) may be provided by higher layer parameters for decoding the PDSCH. The device 1 may decode the PDSCH according to the PDCCH to be decoded. is a parameter for setting the QCL relationship between the downlink reference signal and the first antenna port. For example, the first antenna port may be a DMRS port of a PDSCH (an antenna port associated with DMRS). The first antenna port may be a DMRS port of a PDCCH. The first antenna port may be a CSI-RS port of a CSI-RS resource. The QCL relationship may be set by a higher layer parameter. For example, the first downlink reference For example, the QCL relationship may be set by the higher layer parameter qcl-Type1 for the second downlink reference signal. For example, the QCL relationship may be set by the higher layer parameter qcl-Type2 for the second downlink reference signal. For example, the QCL relationship between the first antenna port and the second antenna port may be set by the higher layer parameter qcl-Type3 for the second downlink reference signal. The first antenna port and the second antenna port may be represented as QCLs. The block reference signal may be a CSI-RS or an SS / PBCH block.

[0226] The CORESET pool index of a first CORESET may be different from the CORESET pool index of a second CORESET. The value may be set by a higher layer parameter. The first antenna port associated with one CORESET pool index of a cell may be assumed to be the first reference signal and QCL.

[0227] The terminal device 1 attempts to detect the PDCCH in the search space set. Attempting to detect a PDCCH in the search space set may be attempting to detect a PDCCH candidate in the search space set, or attempting to detect a DCI format in the search space set. Alternatively, the PDCCH may be detected in the control resource set. Alternatively, the PDCCH may be detected in the control resource set. , it may be to attempt to detect the DCI format in the control resource set.

[0228] The search space set is defined as a set of PDCCH candidates. The search space set may be a Common Search Space (CSS) set or a UE-specific Search Space (USS) set. The terminal device 1 may define a Type 0 PDCCH common search space set, a Type 0a PDCCH common search space set, a Type 1 PDCCH common search space set, a Type 2 PDCCH common search space set, and a Type 3 PDCCH common search space set. , a part of the Type 3 PDCCH common search space set, and / or a UE-specific search space set, or Attempts to detect PDCCH candidates in all cases.

[0229] The Type 0 PDCCH common search space set is used as the common search space set with index 0. The Type 0 PDCCH common search space set may include the common search space with index 0. It may be a set.

[0230] The CSS set is a collective term for the Type 0 PDCCH common search space set, Type 0a PDCCH common search space set, Type 1 PDCCH common search space set, Type 2 PDCCH common search space set, and Type 3 PDCCH common search space set. The USS set is a UE-specific PDCCH search space set. It is also called.

[0231] A search space set is associated with (contained in, corresponds to) a control resource set. The index of the control resource set associated with the search space set may be indicated by a higher layer parameter.

[0232] For a given search area set, some or all of 6A to 6C may be indicated by at least higher layer parameters. 6A) PDCCH monitoring periodicity 6B) PDCCH monitoring pattern within a slot 6C) PDCCH monitoring offset

[0233] A monitoring occasion for a certain set of search areas is defined as The monitoring opportunity for a search space set may correspond to an OFDM symbol in which the first OFDM symbol of the associated control resource set is located. The monitoring opportunity for a search space set may correspond to resources of a control resource set associated with the search space set starting from the first OFDM symbol of the control resource set. The monitoring opportunity for the search space set is based on at least some or all of the PDCCH monitoring interval, the PDCCH monitoring pattern within the slot, and the PDCCH monitoring offset.

[0234] 8 is a diagram illustrating an example of a monitoring opportunity for a search area set according to one aspect of the present embodiment. In FIG. 8, search area set 91 and search area set 92 are set in primary cell 301, search area set 93 is set in secondary cell 302, and search area set 94 is set in secondary cell 303.

[0235] In Figure 8, the solid white blocks in primary cell 301 indicate search area set 91, the solid black blocks in primary cell 301 indicate search area set 92, the blocks in secondary cell 302 indicate search area set 93, and the blocks in secondary cell 303 indicate search area set 94.

[0236] The monitoring interval of the search area set 91 is set to 1 slot, and the monitoring interval of the search area set 91 is set to 1 slot. The offset is set to 0 slots, and the monitoring pattern of the search area set 91 is [1,0 ,0,0,0,0,0,1,0,0,0,0,0,0]. The monitoring opportunities for search area set 91 correspond to the first OFDM symbol (OFDM symbol #0) and the eighth OFDM symbol (OFDM symbol #7) in each slot.

[0237] The monitoring interval of the search area set 92 is set to 2 slots, the monitoring offset of the search area set 92 is set to 0 slots, and the monitoring pattern of the search area set 92 is [1,0 ,0,0,0,0,0,0,0,0,0,0,0,0,0]. The monitoring opportunity for the search area set 92 is the first OFDM symbol (OF DM symbol #0).

[0238] The monitoring interval of the search area set 93 is set to 2 slots, the monitoring offset of the search area set 93 is set to 0 slots, and the monitoring pattern of the search area set 93 is [0,0 ,0,0,0,0,0,1,0,0,0,0,0,0]. The monitoring opportunity for search area set 93 corresponds to the eighth OFDM symbol (OFDM symbol #7) in each of the even slots.

[0239] The monitoring interval of the search area set 94 is set to 2 slots, the monitoring offset of the search area set 94 is set to 1 slot, and the monitoring pattern of the search area set 94 is set to [1,0 ,0,0,0,0,0,0,0,0,0,0,0,0,0]. The monitoring opportunity for search area set 94 corresponds to the first OFDM symbol (OFDM symbol #0) in each odd slot.

[0240] The Type 0 PDCCH common search space set is a CRC (Cyclic Redundancy Check) scrambled by the SI-RNTI (System Information-Radio Network Temporary Identifier). It may be used at least for DCI formats with columns.

[0241] The Type 0aPDCCH common search space set may be used at least for DCI formats with a CRC (Cyclic Redundancy Check) sequence scrambled by a System Information-Radio Network Temporary Identifier (SI-RNTI).

[0242] The Type 1 PDCCH common search space set may be used at least for DCI formats with a CRC sequence scrambled by a Random Access-Radio Network Temporary Identifier (RA-RNTI) and / or a CRC sequence scrambled by a Temporary Cell-Radio Network Temporary Identifier (TC-RNTI).

[0243] The Type 2 PDCCH common search space set is used for DCI formats with CRC sequences scrambled by the Paging-Radio Network Temporary Identifier (P-RNTI). That's fine.

[0244] The Type 3 PDCCH common search space set may be used for a DCI format with a CRC sequence scrambled by a Cell-Radio Network Temporary Identifier (C-RNTI).

[0245] The UE dedicated PDCCH search space set is DCI with a CRC sequence scrambled by the C-RNTI. It may be used at least for formatting purposes.

[0246] In downlink communication, the terminal device 1 detects the downlink DCI format. The detected downlink DCI format is used at least for resource allocation of the PDSCH. The detected downlink DCI format is also called a downlink assignment. The terminal device 1 attempts to receive the PDSCH. Based on the PUCCH resource indicated based on the PUCCH DCI format, the HARQ-ACK corresponding to the PDSCH (HARQ-ACK corresponding to the transport block included in the PDSCH) is reported to the base station device 3.

[0247] In uplink communication, the terminal device 1 detects the uplink DCI format. The detected DCI format is used at least for PUSCH resource allocation. The detected uplink DCI format is also called an uplink grant. The terminal device 1 transmits the PUSCH.

[0248] In the configured grant, PUSCH is scheduled. An uplink grant for scheduling is configured for each transmission period of the PUSCH. When the PUSCH is scheduled by the uplink DCI format, some or all of the information indicated by the uplink DCI format may be indicated by the uplink grant configured in the case of configured scheduling.

[0249] The UL slot may be a slot consisting of UL symbols. The special slot may be a slot consisting of UL symbols, flexible symbols, and DL symbols. The DL slot may be a slot consisting of DL symbols.

[0250] The UL symbol may be an OFDM symbol configured or indicated for uplink in time division duplex. The UL symbol may be an OFDM symbol configured or indicated for PUSCH, PUCCH, PRACH, or SRS. The UL symbol may be provided by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The UL symbol The UL slots may be provided by the higher layer parameter tdd-UL-DL-ConfigurationDedicated. The UL slots may be provided by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The UL slots may be provided by the higher layer parameter tdd-UL-DL-ConfigurationDedicated.

[0251] The DL symbol may be an OFDM symbol configured or indicated for downlink in time division duplex. The DL symbol may be an OFDM symbol configured or indicated for PDSCH or PDCCH. The DL symbol may be provided by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The DL symbol may be provided by the higher layer parameter tdd-UL-DL-ConfigurationDedicated. The DL slot may be provided by the higher layer parameter tdd-UL-DL-ConfigurationDedicated. The DL slot may be provided by the parameter tdd-UL-DL-ConfigurationCommon. This may be provided by the layer parameter tdd-UL-DL-ConfigurationDedicated.

[0252] The flexible symbols may be OFDM symbols within a certain period that are not configured or indicated as UL symbols or DL ​​symbols. The certain period may be a period given by the higher layer parameter dl-UL-TransmissionPeriodicity. The flexible symbols are used for PDSCH, PDCCH, PUSCH, PUCCH, or PRACH. It may be a set or indicated OFDM symbol.

[0253] The upper layer parameter tdd-UL-DL-ConfigurationCommon is The upper layer parameter tdd-UL-DL-ConfigurationDedicated may be a parameter that sets a UL slot, a DL slot, or a special slot for the flexible symbol in each of the one or more slots. The upper layer parameter tdd-UL-DL-ConfigurationDedicated may be a parameter that sets a UL symbol, a DL symbol, or a flexible symbol for the flexible symbol in each of the one or more slots. The tdd-UL-DL-ConfigurationCommon may be a common upper layer parameter. The tdd-UL-DL-ConfigurationDedicated may be a dedicated upper layer parameter. Setting the UL slot, DL slot, or special slot for each slot is equivalent to setting the TDD pattern or slot format. Good too.

[0254] The PUSCH-Config may be a dedicated upper layer parameter. The PUSCH-ConfigCommon may be a common upper layer parameter. The PUSCH-Config may be configured for each BWP for PUSCH transmission. The PUSCH-Config may include multiple upper layer parameters related to PUSCH transmission. The PUSCH-Config may be a UE-specific configuration. For example, for a terminal device 1A in one cell, And, PUSCH-Config for the terminal device 1B, the terminal device 1C, or PUSCH-Config included in The higher layer parameters used may be different. PUSCH-ConfigCommon is the PUSCH-ConfigCommon may be set for each BWP for PUSCH transmission. PUSCH-ConfigCommon may include multiple higher layer parameters related to PUSCH transmission. PUSCH-ConfigCommon may be a cell-specific setting. For example, PUSCH-ConfigCommon may be common for terminal device 1A, terminal device 1B, and terminal device 1C in one cell. For example, PUSCH-ConfigCommon may be set by system information. may be given as:

[0255] Repeated transmission may be applied to the PUSCH. For example, repeated transmission may be applied to the PUSCH scheduled by DCI. Repeated transmission may be applied to PUSCH scheduled by grant. The PUSCH repetition type is PUSCH repetition type A and PUSCH repetition type B. The PUSCH repetition type is configured by higher layer parameters. The PUSCH repetition type may be based on the DCI format. For example, a first PUSCH repetition type for a PUSCH scheduled by DCI format 0_1 ​​may be different from a second PUSCH repetition type for a PUSCH scheduled by DCI format 0_2.

[0256] The number of repetitions for PUSCH repeat transmission may be configured by higher layer parameters. For example, the upper layer parameter numberOfRepetitions is the number of repetitions for PUSCH repeated transmission. The parameter may include the number of repetitions. In the case of repeated transmission, the number of repetitions for the PUSCH repeated transmission may be determined by the value of the higher layer parameter numberOfRepetitions. In the PUSCH repetition type A, the DCI format with CRC scrambled by C-RNTI and either MCS-C-RNTI or CS-RNTI is used. If there is a numberOfRepetitions in the resource allocation table, the number of repetitions of the PUSCH instructed to be transmitted by the matrix may be equal to the numberOfRepetitions. When one PUSCH-TimeDomainResourceAllocation includes one or more PUSCH-Allocations, The higher layer parameter numberOfRepetitions may be configured for each PUSCH-Allocation. The PUSCH-TimeDomainResourceAllocation is also called a resource allocation table. This may also be done.

[0257] The upper layer parameter pusch-AggregationFactor is the repetition factor for PUSCH repetition transmission. The parameter may be a parameter indicating the number of PUSCH repetitions corresponding to PUSCH repetition type A. In the transmission, the number of repetitions for the PUSCH repetition transmission may be determined by the value of the higher layer parameter pusch-AggregationFactor. and DCI format with CRC scrambled by either MCS-C-RNTI or CS-RNTI. The PUSCH whose transmission is instructed by the mat has the pusch-AggregationFactor set. In this case, the number of repetitions may be equal to pusch-AggregationFactor, which may be set for PUSCH-Config.

[0258] The number of repetitions corresponding to PUSCH repetition type A is the slot number for PUSCH repetition transmission. Also, one TB may be repeated in one or more slots. PUSCH repetitions transmitted in different slots may be assigned to the same OFDM symbol. may be applied.

[0259] In PUSCH repetition transmission corresponding to PUSCH repetition type B, nominal repetition is used. It may be based on Repetition and Actual Repetition.

[0260] The frequency hopping scheme may be set by a higher layer parameter. The higher layer parameters frequencyHopping, frequencyHoppingDCI-0-1, and frequencyHoppingDCI-0-2 may be parameters that provide a frequency hopping scheme for the PUSCH. For example, frequencyHoppingDCI-0-2 in PUSCH-Config specifies the frequency for PUSCH. A frequency hopping scheme corresponding to frequency hopping for PUSCH may be configured by frequencyHopping in PUSCH-Config. A frequency hopping scheme corresponding to frequency hopping for PUSCH transmission configured by frequencyHopping in configuredGrantConfig may be configured. The frequency hopping scheme may be any of intra-slot frequency hopping, inter-slot frequency hopping, and inter-repetition frequency hopping. A frequency hopping interval corresponding to intra-slot frequency hopping may be one slot or less. A frequency hopping interval corresponding to inter-slot frequency hopping may be one slot or multiple slots. A frequency hopping interval corresponding to inter-repetition frequency hopping may be based on nominal repetition.

[0261] For example, the hopping interval may be provided by a higher layer parameter, which may for example be a dedicated higher layer parameter.

[0262] Whether to perform frequency hopping may be determined based at least on the DCI. Whether to apply frequency hopping for a PUSCH whose transmission is instructed by the DCI format may be determined based at least on a value of a frequency hopping flag field included in the DCI format. Whether to apply frequency hopping for a PUSCH whose transmission is instructed by the random access response grant may be determined based at least on a value of a frequency hopping flag field included in the random access response grant. For example, frequency hopping for the PUSCH may be performed based at least on the frequency hopping flag field being equal to one.

[0263] Intra-slot frequency hopping is applicable to PUSCH transmission in one or more slots. For example, intra-slot frequency hopping may be used for PUSCH repetitive transmission. For PUSCHs where intra-slot frequency hopping is applied, 1 or For example, for a PUSCH to which intra-slot frequency hopping is applied, the allocation of resource blocks may be switched for one or more OFDM symbols. The placement may be switched between first hop and second hop. Furthermore, when intra-slot frequency hopping is performed for the PUSCH, the first hop and the second hop may be switched every one or more OFDM symbols. The difference between the location of the first resource block in the RB and the location of the first resource block in the second hop is offset RB offset may be set by a higher layer parameter. The one or more OFDM symbols may be within one slot. The one or more OFDM symbols may be half the number of OFDM symbols for the PUSCH within one slot. Intra-bit frequency hopping is applied to PUSCH corresponding to PUSCH repetition type A. Good too.

[0264] Inter-slot frequency hopping is applied to PUSCH transmission in multiple slots. For PUSCH to which inter-slot frequency hopping is applied, The allocation of resource blocks may be switched. For example, inter-slot frequency hopping may be applied to PUSCH repeated transmission. Furthermore, when inter-slot frequency hopping is performed for PUSCH, the allocation of resource blocks may be switched between the first hop and the second hop for each slot. For example, in a certain slot, slot index n μ s,f If n is an even number, the PUSCH transmission in the slot may correspond to the first hop. For example, in a slot, slot index n μ s,f If is odd, the PUSCH transmission in the given slot may correspond to the second hop. Inter-slot frequency hopping is available for PUSCH repetition type A and PUSCH repetition type B. It may be applied to a PUSCH corresponding to either type B.

[0265] Inter-repetition frequency hopping is applied to PUSCH corresponding to PUSCH repetition type B. For PUSCH where frequency hopping between repetitions is applied, the nominal repetition rate may be Based on the response, the first and second hops may be switched.

[0266] pusch-TransCoherence is a method for selecting an uplink codebook subset for PUSCH transmission. A UE that indicates support for the partial coherent codebook subset may also support the non-coherent codebook subset. A UE that indicates support for the fully coherent codebook subset may also support the partial coherent and non-coherent codebook subsets.

[0267] pusch-TransCoherence-r18 is an uplink codebook subset for PUSCH transmission. Support for 2-ports partial coherent codebook subsets may be defined. UEs that indicate this may also support non-coherent codebook subsets. A UE that indicates support for the partial coherent codebook subset may also support the 2-port partial coherent and non-coherent codebook subsets. A UE that indicates support for the fully coherent codebook subset may also support the 4-port partial coherent, 2-port partial coherent, and non-coherent codebook subsets. pusch-TransCoherence-r18 may be used as a UE capability that supports 8Tx transmission.

[0268] pusch-TransCoherence-r18 is an uplink codebook subset for PUSCH transmission. A UE that indicates support for a non-coherent codebook subset may only support the non-coherent codebook subset. A UE that indicates support for the coherent codebook subset may only support the 2-port partial coherent codebook subset. A UE that indicates support for a 4ports partial coherent codebook subset shall A UE that indicates support for a fully coherent codebook subset may only support the fully coherent codebook subset.

[0269] At least two transmission schemes may be supported for the PUSCH. For example, codebook-based transmission may be one of the transmission schemes for the PUSCH. For example, non-codebook-based transmission may be one of the transmission schemes for the PUSCH. The higher layer parameters may provide either codebook transmission or non-codebook transmission. For example, if 'codebook' is set for the higher layer parameters, the terminal device 1 may be configured for codebook transmission. For example, If 'nonCodebook' is set for the upper layer parameter, the terminal device 1 may be configured for non-codebook transmission. 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, the terminal device 1 may not expect to be scheduled by either DCI format 0_1 ​​or DCI format 0_2. When the PUSCH is scheduled by DCI format 0_0, transmission of the PUSCH may be based on at least one antenna port.

[0270] In codebook transmission, the PUSCH may be scheduled by a DCI format. The DCI format may be any of DCI format 0_0, DCI format 0_1, and DCI format 0_2. In codebook transmission, the PUSCH may be configured to be transmitted semi-statically. The terminal device 1 may determine one or more precoders for PUSCH transmission. For example, the precoders may be determined based on at least some or all of an SRS Resource Indicator (SRI), a Transmitted Precoding Matrix Indicator (TPMI), and a transmission rank (transmission rank). For example, SRI is a DCI field with an SRS resource indicator of 1 or 2. The DCI field indicating the SRI may be provided by the first SRI field. , may be referred to as the second SRI field. For example, the TPMI may be For example, the transmission rank may be provided by the DCI field of the number of layers (number of transmission layers). The fields indicating the TPMI may be referred to as a first TPMI field and a second TPMI field. The SRI may be provided by a first higher layer parameter. The TPMI and transmission rank may be provided by a second higher layer parameter. The first higher layer parameter may be srs-ResourceIndicator or srs-ResourceIndicator2. The second higher layer parameter may be precodingAndNumberOfLayers or precodingAndNumberOfLayers2. may be.

[0271] The SRS resource set applied to the PUSCH may be determined based on higher layer parameters. The PUSCH is scheduled by DCI format 0_1 ​​or DCI format 0_2. The upper layer parameter may be srs-ResourceSetToAddModList or srs-ResourceSetToAddModeListDCI-0-2. The upper layer parameter may be an upper layer parameter configured in SRS-Config.

[0272] If the upper layer parameter usage is set to 'codebook', one or two SRS resource sets are specified in srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2. The upper layer parameter usage may be set in the upper layer parameter SRS-ResourceSet.

[0273] When one SRS resource set is configured, the SRI and TPMI may be given by the DCI field. The TPMI may be used to indicate a precoder. The precoder may be one of v precoders. The SRS resource may be applied across layers. When multiple SRS resources are configured, one SRS resource may be selected by the SRI. The transmit precoder (precoder) may be selected from a codebook (uplink codebook). For example, the codebook may include the number of antenna ports. The number of antenna ports is determined by the higher layer parameters nrofSRS-Ports and If 'codebook' is set in the upper layer parameter txConfig, at least one SRS resource may be configured in the terminal device 1. The SRI to be indicated is determined by the SRI. The SRS resource may be associated with the transmission of the SRS resource identified by the SRS resource.

[0274] If two SRS resource sets are configured, one or two SRIs and one or two TPMIs are , may be given by a DCI field. For example, the DCI field may be an SRS resource indicator The terminal device 1 may apply the indicated SRI and TPMI to one or more PUSCH repetitions. The TPMI may be determined based on the code point of the SRS resource set indication. The precoder may be used to indicate a precoder. The precoder may be applied to the 0th to v-1th layers. The precoder may correspond to an SRS resource selected by the SRI. Multiple SRS resources may be configured for an applicable SRS resource set. In one or two TPMIs, the transmission precoder (precoder) may be selected from a codebook (uplink codebook). When two SRIs are indicated, the terminal device 1 indicates The number of antenna ports for the two SRS resources may be expected to be the same, and may be provided by a higher layer parameter.

[0275] In codebook transmission, the terminal device 1 may determine a codebook subset. For example, the codebook subset may be determined based at least on the TPMI. The codebook subset may be determined in response to receiving certain higher layer parameters. The certain higher layer parameters may be codebookSubset, codebookSubset-r18, or codebo The upper layer parameter may be codebookSubset or codebookSubsetDCI-0-2. The upper layer parameter may be determined based at least on the number of SRS ports. For example, if the number of SRS ports is four or less, the upper layer parameter may be codebookSubset or codebookSubsetDCI-0-2. For example, if the number of SRS ports is greater than four, the upper layer parameter may be codebookSubset-r18. Certain upper layer parameters may be set to any of the following: 'fullyAndPartialAndNonCoherent', 'partialAndNonCoherent', 'nonCoherent', 'fullyCoherent', 'partialCoherent', '4portsPartialCoherent', and '2portsPartialCoherent'. For example, if at least one upper layer parameter is set to 'partialAndNonCoherent', In this case, the codebook subset associated with the 2-port SRS resource (SRS resource with 2 ports) may be 'nonCoherent'. For example, the 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 higher layer parameter is set to '4portsPartialCoherent', If so, the codebook subset associated with a 4-port SRS resource (an SRS resource with 4 ports) may be 'fullyAndPartialAndNonCoherent'. For example, If some higher layer parameter sets '2portsPartialCoherent', the codebook subset associated with a 2-port SRS resource (SRS resource with 2 ports) may be 'partialAndNonCoherent'. For example, a codebook may contain at least one SRS resource with 8 ports and at least one SRS resource with 4 ports.

[0276] If the terminal device 1 reports the UE capability of 'partialAndNonCoherent' transmission, Position 1 may not expect the codebook subset to have 'fullyAndPartialAndNonCoherent' set.

[0277] If the terminal device 1 reports a UE capability of 'nonCoherent' transmission, the terminal device 1 may not expect a codebook subset having 'fullyAndPartialAndNonCoherent' or 'partialAndNonCoherent' to be configured.

[0278] If the terminal device 1 reports a UE capability of 'fullyCoherent' transmission, the terminal device 1 may not expect a codebook subset having 'partialCoherent' or 'nonCoherent' to be configured.

[0279] If the terminal device 1 reports a UE capability of 'partialCoherent' transmission, the terminal device 1 may not expect a codebook subset having 'fullyCoherent' or 'nonCoherent' to be configured.

[0280] If the terminal device 1 reports a UE capability of 'nonCoherent' transmission, the terminal device 1 may not expect a codebook subset having 'fullyCoherent' or 'partialCoherent' to be configured.

[0281] When the terminal device 1 reports the UE capability of 'fully Coherent' transmission, the terminal device 1 shall have '2portsPartialCoherent', '4portsPartialCoherent', or 'nonCoherent'. It is not necessary to expect that a single codebook subset will be set.

[0282] If the terminal device 1 reports the UE capability of '4portsPartialCoherent' transmission, A device may not expect the codebook subset to have 'fullyCoherent', '2portsPartialCoherent', or 'nonCoherent' configured.

[0283] If the terminal device 1 reports the UE capability of '2portsPartialCoherent' transmission, A device may not expect the codebook subset to have 'fullyCoherent', '4portsPartialCoherent', or 'nonCoherent' configured.

[0284] If the terminal device 1 reports a UE capability of 'nonCoherent' transmission, the terminal device 1 shall not have 'fullyCoherent', '4portsPartialCoherent', or '2portsPartialCoherent'. It is not necessary to expect that a single codebook subset will be set.

[0285] If the number of antenna ports indicates that the maximum number of SRS antenna ports to be configured is 2, the terminal device 1 may not expect that a higher layer parameter to which 'partialAndNonCoherent' is set is configured. The higher layer parameter may be codebookSubset or codebookSubsetForDCI-Format0-2. The number of antenna ports may be determined by the higher layer parameter nrofSRS-Ports.

[0286] The maximum number of SRS antenna ports that can be set is 2 or 4. When instructing "fullyCoherent", the terminal device 1 does not need to expect that a higher layer parameter to which "fullyCoherent" is set is configured. The higher layer parameter may be codebookSubset-r18 or codebookSubsetForDCI-Format0-2-r18. The number of antenna ports may be determined by the higher layer parameter nrofSRS-Ports.

[0287] If the number of antenna ports indicates that the maximum number of SRS antenna ports to be set is 2, the terminal device 1 sets 'fullyCoherent' or '4portsPartialCoherent'. It is not necessary to expect that the higher layer parameters to 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.

[0288] If the number of antenna ports indicates that the maximum number of SRS antenna ports to be set is 4, the terminal device 1 sets 'fullyCoherent' or '2portsPartialCoherent'. It is not necessary to expect that the higher layer parameters to 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.

[0289] In codebook transmission, one SRS resource may be determined from the SRS resource set based on the SRI, except when the first higher layer parameter is set to 'fullpowerMode2'. In this case, the maximum number of SRS resources configured for codebook transmission may be 2. The higher layer parameter of the DCI may be ul-FullPowerTransmission. The DCI may also indicate the transmission of SRS resources. For example, if aperiodic SRS is configured, the DCI may indicate The SRS request field in the SRS request field may indicate the transmission of aperiodic SRS resources. The terminal device 1 may not expect the first higher layer parameter to be set to 'fullpowerMode1' and the second higher layer parameter to be set to 'fullAndPartialAndNonCoherent'.

[0290] The terminal device 1 uses the SRS resource indicated by the DCI format or the upper layer parameter. Use the same antenna port or ports as the SRS port or ports at the source. For example, the SRS port may be an antenna port for PUSCH transmission. The DMRS antenna ports may be determined according to the ordering of the DMRS ports.

[0291] When multiple SRS resources are configured by an SRS resource set, the terminal device 1 The SRS resource set may expect the higher layer parameter nrofSRS-Ports to be set with the same value for all SRS resources. It may be a higher layer parameter SRS-ResourceSet with meter usage.

[0292] If 'fullpowerMode2' is set for the upper layer parameters, one or more SRS resources with the same or different SRS port numbers can be configured in one SRS resource set. If 'fullpowerMode2' is set for the upper layer parameters, then up to two different spatial relations may be configured for all SRS resources in one SRS resource set. If 'fullpowerMode2' is set for the upper layer parameters, then up to two or four SRS resources may be configured in one SRS resource set. Also, up to eight SRS resources may be configured in one SRS resource set. An SRS resource set is one that has 'codebook' set. It may be an SRS resource set with higher layer parameter usage.

[0293] In non-codebook transmission, the PUSCH is DCI format 0_0, DCI format 0_1, or , may be scheduled by DCI format 0_2. The terminal device 1 may determine the precoder and transmission rank of the PUSCH based on the SRI. For example, when multiple SRS resources are configured, the SRI is given by one or two SRS resource indications in the DCI. For example, the SRI may be given by a higher layer parameter, and the SRS resource set applied to the PUSCH may be defined by an entry in the higher layer parameter. The upper layer parameter may be srs-ResourceSetToAddModList or srs-ResourceSetToAddModListDCI-0-2.

[0294] The terminal device 1 may use one or more SRS resources for SRS transmission. The maximum number of SRS resources in one SRS resource set may be transmitted to the base station device 3 as a UE capability. The SRS resources may be configured for simultaneous transmission in the same OFDM symbol. Multiple SRS resources transmitted simultaneously may occupy the same resource block. One SRS port may be configured for each SRS resource. One or two SRS resource sets may be configured in the upper layer parameter srs-ResourceSetToAddModList with the upper layer parameter usage set to 'nonCodebook' in the upper layer parameter SRS-ResourceSet. If two SRS resource sets are configured, one or two SRIs may be given by the DCI field. The DCI field may be a DCI field for two SRS resource indications.

[0295] The terminal device 1 may apply the indicated SRI to one or more PUSCH repetitions. For example, according to the SRS resource set of the PUSCH repetition, the terminal device 1 may apply the indicated SRI to one or more PUSCH repetitions. Alternatively, it may be applied to multiple PUSCH repetitions. The maximum number of SRS resources per SRS resource set may be four. The maximum number of SRS resources per SRS resource set configured for data transmission is 8. Each of the one or two SRIs indicated is the SRS resource set identified by the SRI. The SRS transmission may be related to the latest transmission of the SRS resource in the set. The SRS transmission may be before the PDCCH carrying the SRI. Different numbers of SRS resources may be configured in the two SRS resource sets. The terminal device 1 does not need to expect this.

[0296] Multiple PDCCH candidates (PDCCH candidate(s)) are searched for and configured by higher layer parameters. When a search area set is associated with the PDCCH candidate, one PDCCH candidate is used. The upper layer parameter may be a PDCCH candidate that starts earlier among the PDCCH candidates. The upper layer parameter may be searchSpaceLinking.

[0297] For non-codebook transmission, the UE may calculate a precoder. For example, the precoder used for SRS transmission may be calculated based on measurements of NZP CSI-RS resources. One NZP CSI-RS resource may be configured for one SRS resource set. For example, one SRS resource set has a higher layer parameter set to 'nonCodebook'. It may be an SRS resource set with a meter.

[0298] When an aperiodic SRS resource set is configured, the NZP-CSI RS may be indicated via an SRS request field. The SRS request field may be one of the DCI fields in any of DCI format 0_1, DCI format 0_2, DCI format 1_1, and DCI format 1_2. The first higher layer parameter is aperiodic SRS The first upper layer parameter, the triggered SRS resource, srs-ResourceSetId, and csi-RS may be configured in the upper layer parameter SRS-ResourceSet. The upper layer parameter csi-RS may indicate the NZP-CSI-RS-ResourceId. The upper layer parameter SRS-ResourceSet 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. The terminal device 1 may not be expected to update the precoding information (SRS precoding information). For example, if the gap from the last OFDM symbol of reception of the aperiodic NZP-CSI-RS resource to the first OFDM symbol of the aperiodic SRS transmission is 42 OFDM symbols or less, the terminal device 1 may update the precoding information. Don't expect it to be updated.

[0299] If an aperiodic SRS associated with the aperiodic NZP CSI-RS resource is configured, the presence of the CSI-RS If the value of the SRS request field is not '00' and the scheduling DCI is cross carrier scheduling or cross bandwidth part scheduling (BWP), If the CSI-RS is not used for SRS scheduling, the presence of the CSI-RS may be indicated by the SRS request field.

[0300] The terminal device 1 may perform one-to-one mapping. The one-to-one mapping may be a mapping from the SRI to the PUSCH layer corresponding to the DMRS port. PUSCH layers from 0 to v-1 may be provided, where v may be the number of layers. The number of layers may be set by a higher layer parameter. The terminal device 1 may transmit the PUSCH using the same antenna port as the SRS port. For example, the SRS ports in the SRS resource indicated by the SRI may be indexed as pi = 1000 + i. For example, the SRS port in the (i+1)th SRS resource may be indexed as pi = 1000 + i. The SRS port in the (i+1)-th SRS resource may be pi. pi may be 1000+i, i.e., pi=1000+i. It's okay to have one.

[0301] In non-codebook transmission, the spatial relation information (info) for the SRS resource and the higher layer parameter SRS-ResourceSet for the SRS resource set are used. The terminal device 1 expects that both the upper layer parameter associatedCSI-RS and the upper layer parameter associatedCSI-RS are set. The spatial relationship information may be determined by higher layer parameters. The spatial relationship information may be the higher layer parameter spatialRelationInfo. Non-codebook In transmission, when at least one SRS resource is configured in an SRS resource set with upper layer parameters set to 'nonCodebook', terminal device 1 may be scheduled by DCI format 0_1 ​​or DCI format 0_2.

[0302] The CQI indicator and its interpretation for reporting the CQI may be indicated based on the modulation scheme.

[0303] The terminal device 1, based on the observation interval unlimited in time and the observation interval unlimited in frequency, selects the highest CQI index that satisfies the following condition for each CQI value reported in the uplink slot n: The modulation scheme, target coding rate, and transport block number corresponding to the CQI index may be derived. The combination of block sizes creates a downlink physical resource block called the CSI reference resource. A single PDSCH transport block occupying a group of blocks is It may be possible to receive the signal so as not to exceed the rate.

[0304] If the upper layer parameter timeRestrictionForChannelMeasurements is set to "notConfigured", the terminal device 1 may derive channel measurements for calculating the CSI value to be reported in UL slot n based only on the NZP CSI-RS that is not later than the CSI reference resource associated with the CSI resource configuration.

[0305] If the upper layer parameter timeRestrictionForChannelMeasurements of CSI-ReportConfig is "Configured", the terminal device 1 uses the latest and most recent CSI reference of the NZP CSI-RS related to the CSI resource configuration. The channel measurements for CSI calculation to be reported in UL slot n may be derived based only on opportunities that are not later than the reference resource.

[0306] The higher layer parameter timeRestrictionForInterferenceMeasurements is "notConfigured" ", the terminal device 1 may derive the interference measurement value for calculating the CSI value reported in UL slot n based only on the CSI-IM and / or NZP CSI-RS so as not to be later than the CSI reference resource associated with the CSI resource configuration.

[0307] If the upper layer parameter timeRestrictionForInterferenceMeasurements of CSI-ReportConfig is "Configured", the terminal device 1 may derive interference measurements for calculating the CSI value to be reported in UL slot n based on the latest CSI-IM and / or NZP CSI-RS opportunity for interference measurement related to the CSI resource configuration that is not later than the CSI reference resource.

[0308] For each subband index s, a 2-bit subband differential CQI may be defined as follows: Subband offset level (s) = Subband CQI index (s) - Wideband CQI index Index

[0309] The combination of modulation scheme and transport block size is used to determine the CQI index in the following cases: Depending on the transport block size determination, the CSI reference resource may be and the modulation scheme is indicated by a CQI index, and the combination of transport block size and modulation scheme, when applied to the reference resource, results in an effective channel coding rate that is closest to the coding rate indicated by the CQI index. There are multiple combinations of transport block size and modulation scheme, and CQI Only the combination with the smallest transport block size may be relevant if it results in an effective channel coding rate that is close to being equal to the coding rate indicated by the index.

[0310] If terminal device 1 has two antenna ports and the upper layer parameter codebookType is set to "typeI-SinglePanel", each PMI value corresponds to the codebook index as follows: The terminal device 1 may set the upper layer parameter twoTX-CodebookSubsetRestriction. The bitmap parameter twoTX-CodebookSubsetRestriction may form a bit string a5,...,a1,a0, where a0 is the LSB and a5 is the MSB. A bit value of 0 may indicate that PMI reporting is not allowed to correspond to the precoder associated with that bit. Bits 0 to 3 are associated with codebook indexes 0 to 3, respectively, for layer number 1, and bits Layers 4 and 5 may be associated with codebook indexes 0 and 1, respectively, with layer number 2. .

[0311] When the terminal device 1 has four or more antenna ports and the upper layer parameter codebookType is set to "typeI-SinglePanel", 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 three codebook indexes i 1,1 , i 1,2 , i2. When the number of layers v={2,3,4}, each PMI value is 4 One codebook index i 1,1 , i 1,2 , i 1,3 , i2. The synthesis codebook index i1 may correspond to i 1,1 , i 1,2 , i 1,3 It may consist of part or all of the above.

[0312] k1 and k2 are i 1,3 , 0 or N2 based on the number of layers v and the antenna configurations N1 and N2 of the terminal device 1. may be determined as a multiple of O1 and O2, where N1 and N2 may be the numbers of antennas in the horizontal and vertical directions arranged on the antenna panel of the terminal device 1. Also, O1 and O2 are the numbers of antennas in the terminal device The number of supported combinations of (N1, N2) and (O1, O2) may be determined by the number of CSI-RS ports P of the terminal device 1. CSI-RS It may be determined based on the following.

[0313] The values ​​of N1 and N2 may be configured by higher layer parameters n1-n2. P CSI-RS may be given by 2N1N2. When the value of N2 is 1, the terminal device 1 1,2 =0 Use only i 1,2 You do not need to report.

[0314] The bitmap parameters n1-n2 are: a0 is the LSB, a Ac-1 is the MSB of the bit string a Ac-1 ,...,a1,a0. 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 Except for the case where the number of layers v∈{3,4} and the number of antenna ports is 16, 24, or 32, the bit a N2O2,l+m is the quantity v l,m, all precoders based on l=0,…,N1O1-1, m=0,…,N2O2-1 If the number of layers v∈{3, 4} and the number of antenna ports is 16, 24, or 32, then bit a (N2O2(2l-1)+m)modN1O1N2O2 ,a N2O2(2l)+m and a N2O2(2l+1)m teeth respectively, the quantity v l,m , l=0,...,N1O1-1, m=0,...,N2O2-1, may be associated with all precoders. If one or more of the associated bits is zero, the PMI report is l,m It may not correspond to any precoder based on

[0315] If the upper layer parameter codebookType is set to "typeI-SinglePanel", The map parameter typeI-SinglePanel-ri-Restriction may form a bit string r7,...,r1,r0, where r0 is the LSB and r7 is the MSB. i If is 0, i∈{0,1,...,7}, the reporting of PMI and RI may not correspond to any precoder associated with layer stratum v=i+1.

[0316] If the higher layer parameter reportQuantity is set to "cri-RI-i1-CQI", the bit The map parameter typeI-SinglePanel-codebookSubsetRestriction-i2 specifies that b0 is the LSB and b 15 is the MSB b 15 , ..., b1, b0. i is the codebook b) may be associated with the precoder corresponding to index i = i. i If is 0, the randomly selected precoder for CQI calculation is the bit b i , may not correspond to any precoder associated with .

[0317] The precoding matrix W is the number of CSI-RS ports P CSI-RS and the quantity φ n , θ p , u m , v l,m , v~ l,m Each of the amounts may be determined based on some or all of l, m, n, and p, and l, m, n, and p may be determined based on some or all of i1 and i2. It may be determined based on the division.

[0318] If the terminal device 1 has eight or more antenna ports and the upper layer parameter codebookType is set to "typeI-MultiPanel", N g The values ​​of N1 and N2 may be configured by higher layer parameters ng-n1-n2. CSI-RS is 2N g It may be given as N1N2. (N g , N1, N2) and (O1, O2) are the number of CSI-RS ports P CSI-RS N g If N = 2, codebookMode may be set to 1 or 2. g If N = 4, then codebookMode may be set to 1. g is the antenna power of the terminal device 1. It may also be the number of panels that make up the panel.

[0319] The bitmap parameters ng-n1-n2 are a0 is the LSB and a Ac-1 is the MSB of the bit string a Ac-1 , ..., a1, a0. A bit value of 0 may indicate that the PMI report does not support any precoder associated with that bit. The number of bits Ac may be given by N1O1N2O2. Bit a N2O2l+m is the quantity v l,m, l=0,...,N1O1-1, m=0,...,N2O2-1. The bitmap parameter r i -Restriction may form a bit string r3,...,r1,r0, where r0 is the LSB and r3 is the MSB. i If is 0, i∈{0,1,…,3}, the PMI and RI reporting corresponds to any precoder associated with layer v=i+1. It is not necessary.

[0320] Each PMI value may correspond to a codebook index i1 and i2. For the number of layers v=1, i1 is 1,1 , i 1,2 , i 1,4 If the number of layers v∈{2,3,4}, then i1 is 1,1 , i 1,2 , i 1,3 , i 1,4 may consist of some or all of the RI values. May be related.

[0321] codebookMode is set to 1 and N g = 2, if i 1,4 is i 1,4,1 If codebookMode is set to 1 and N g = 4, then i 1,4 is i 1,4,1 , i 1,4,2 , i 1,4,3 If codebookMode is set to 2, then i 1,4 is i 1,4,1 , i 1,4,2 and i2 may be composed of part or all of i 2,0 , i 2,1 , i 2,2 Part of or It may consist of all of them.

[0322] k1 and k2 are i 1,3 , the number of layers v and the antenna configuration N of the terminal device 1 g, N1, N2, it may be determined as 0 or a multiple of O1, O2. When N2=1, the terminal device 1 is i 1,2 Use only =0 and i 1,2 does not have to be reported.

[0323] 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 , W 1,2,2 l,m,p,n , W 2,2,2 l,m,p,n Consists of part or all of 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 is the number of CSI-RS ports P CSI-RS and the quantity φ n , a p , b n , u m , v l,m Each of the amounts may be determined based on some or all of l, m, n, and p. may be determined based on some or all of i1 and i2, and the l, m, n, and p may be determined based on some or all of i1 and i2. Here, p may be determined by some or all of p1, p2, and p3. The n may be composed of some or all of n0, n1, and n2.

[0324] The precoding matrix W is determined based on at least some or all of i1 and i2. i1 may be set to i 1,1 , i 1,2, i 1,3 , i 1,4 It may consist of part or all of i 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.

[0325] The antenna unit of the terminal device 1 may be configured with one or more antennas. The antenna section may be composed of one or more antenna groups. The antenna may consist of one or more antennas with coherence between them. An antenna group may be referred to as a coherent group or a coherence group. An antenna group may be associated with an antenna panel. The number of antenna groups is N g The number of antenna groups may be indicated as the number of antenna panels. The number of antenna groups may be signaled as capability information of the terminal. The number of antenna groups may be configured by some or all of the RRC parameters, MAC CE, and DCI.

[0326] Number of antenna groups N g may be related to the capability information of the terminal. The number of antenna groups N g may be related to the coherence capability of the terminal. The number of antenna groups N g may be associated with a codebook subset. For example, N g =1 is fullyCoherent, fullyAndPartialAndNonCoherent It may relate to part or all of the rent. For example, g = 1, 2, 4 may be related to some or all of fully Coherent, fully And Partial And Non Coherent. For example, N g=2,4 may be related to some or all of partialCoherent, partialAndNonCoherent. For example, N g =2 may be associated with some or all of partialCoherent, 4portsPartialCoherent, 2portsPartialCoherent, and partialAndNonCoherent. For example, N g = 4 may be associated with some or all of partialCoherent, 2portsPartialCoherent, and partialAndNonCoherent. For example, N g =8 may be related to nonCoherent.

[0327] The first precoding matrix may be a multiple of one or more second precoding matrices. In the following, the transmission using n antenna ports may be Let the precoding matrix for W be nTx For example, W 8Tx is one or more Number of W 4Tx For example, W 8Tx is one or more W 2Tx It may consist of Good. For example, W 8Tx is one or more W 2Tx and one or more W 4Tx For example, W 4Tx is one or more W 2Tx It may be composed of:

[0328] The first precoding matrix W1 is a matrix of one or more second precoding matrices. The phase control information φ between the W2 and W3 may be a part of or consist of the phase control information φ between the W2 and W3. The W2 may be the same or different. φ is the horizontal phase control information φ. H and vertical direction Phase control information φ VFor example, for transmission using eight antenna ports, the precoding matrix W 8Tx The precoding matrix W for transmission using two 4-antenna ports is 4Tx When composed of W 8Tx =[W 4Tx φW 4Tx ] T For example, a precoding for transmission using four antenna ports may be configured as Wing Matrix W 4Tx The precoding matrix W for transmission using two two-antenna ports is 2Tx When composed of W 4Tx =[W 2Tx φW 2Tx ] T For example, the precoding matrix W for transmission using eight antenna ports may be 8Tx Four 2-a Precoding matrix W for transmission using antenna ports 2Tx When composed of W 8Tx =[W 2Tx φ H W 2Tx 2φ H W 2Tx 3φ H W 2Tx ] T and W 8Tx =[W 2Tx φ H W 2Tx φ V W 2Tx φ H φ V W 2Tx ] T It may be configured as:

[0329] φ may be determined based at least on the distance between antenna groups or antenna panels of the terminal. H is the horizontal distance between the terminal's antenna groups or antenna panels. The distance φ may be determined based at least on the distance φ. V is the antenna group or antenna of the terminal The φ may be determined based at least on the vertical distance between the antenna panels, and may be determined based at least on some or all of the capability information, the channel state information, the TCI state, the spatial relationship information, and the number of SRS antenna ports of the terminal device.

[0330] FIG. 9 shows a precoding matrix and a transmit spatial filter according to one aspect of this embodiment. 9 is a diagram showing an example of a method for applying the preceding matrix W. In FIG. denotes a transmit spatial filter, and precoding for the PUSCH is performed based on the precoding matrix W and the transmit spatial filter F. In addition, the first precoding The matrix W1 and the first transmit spatial filter F1 correspond to the first uplink physical channel 9100, and the second precoding matrix W2 and the second transmit spatial filter F2 correspond to the second uplink physical channel 9101.

[0331] In Figure 9, vectors d1, d2, ..., d K Based on the precoding matrix W for Precoding is performed and the vectors x1,x2,…,x M Vectors d1,d2,…,d K may be PUSCH data with the number of layers K. Vectors x1, x2, ..., x M may be transmission data for the number L of SRS antenna ports. In this case, d1, d2, ..., d K from x1, x2, …, x M to The transformation is obtained by multiplying the precoding matrix W. The size of the trick W may be determined based on the number of layers K and the number of SRS antenna ports M.

[0332] Also, the vectors x1,x2,…,x MPrecoding is performed based on the transmit spatial filter F for the vectors y1, y2, ..., y N The vectors y1,y2,…,y N may be transmission data for the number N of physical antenna ports on the transmitting side.

[0333] FIG. 10 is a diagram showing an example of an antenna layout of a terminal device 1 according to one aspect of this embodiment. 10001 indicates two antenna elements with different polarizations, and 10002 indicates an antenna group. Indicates the range of d H denotes the horizontal distance between the antennas, and d V denotes the vertical distance between the antennas. d G-H denotes the horizontal distance between antenna groups, and d G-V denotes the vertical distance between antenna groups.

[0334] Terminal device 1 is d H , d V , d G-H , d G-V The terminal device 1 may notify information related to d H , d V , d G-H , d G-V Information related to the above may be notified as the terminal's capability information.

[0335] In the case of non-codebook transmission, the precoding matrix W is equal to the identity matrix. In the case of codebook transmission, the precoding matrix W is In case of single layer transmission in a packet, W may be given as W=1. Otherwise, PUSCH is scheduled The TPMI index is given by the DCI to be queried or by a higher layer parameter. If the higher layer parameter "txConfig" is not set, the precoding matrix W may be set to 1.

[0336] The antenna configuration of the terminal device 1 may be given based on n1-n2-codebookSubsetRestriction, n1-n2-codebookSubsetRestriction-r16, and n1-n2-codebookSubsetRestriction-r18. .

[0337] The terminal device 1 may edit the terminal capability information. The terminal device 1 may transfer the terminal capability information. The terminal device 1 receives a UECapabilityEnquiry from the network. When the UE receives the request, the UE capability information may be edited and transferred. Furthermore, notification of terminal capability information may be performed according to the procedure shown below.

[0338] RRC_CONNECTED if the network requires (additional) UE radio access capability information The procedure may be initiated for the terminal at . The UE capabilities may be acquired only after AS security activation. The UE capabilities acquired before AS security activation may not be transferred to the CN.

[0339] If the UE-CapabilityRAT-RequestList includes a UE-CapabilityRAT-Request in which rat-Type is set to nr, the terminal device 1 formats the contents of the UECapabilityInformation message as follows: The UE-CapabilityRAT-ContainerList may contain a UE-CapabilityRAT-Container of type UE-NR-Capability with rat-Type set to nr. It may contain supportedBandCombinationList, featureSets and featureSetCombinations.

[0340] The terminal device 1 determines whether the UE supports (NG)EN-DC or NE-DC when the UE-CapabilityRAT-RequestList includes a UE-CapabilityRAT-Request in which the rat-Type is set to eutra-nr. In this case, the contents of the UECapabilityInformation message may be set as follows: UE-CapabilityRAT-ContainerList with type UE-MRDC-Capability and rat-Type eutra-nr It may contain the configured UE-CapabilityRAT-Container. It may contain supportedBandCombinationList and featureSetCombinations.

[0341] If the UE-CapabilityRAT-RequestList includes a UE-CapabilityRAT-Request with the rata-Type set to eutra and the UE supports E-UTRA, the terminal device 1 The contents of the UE.CapabilityInformation message may be set as follows: ue-CapabilityRAT-ContainerList may contain a ue-CapabilityRAT-Container with type UE-EUTRA-Capability and rat-Type set to eutra, if received.

[0342] If the ue-CapabilityRAT-RequestList includes a UE-CapabilityRAT-Request with rat-Type set to utra-fdd and the UE supports UTRA-FDD, the terminal device 1 may set the content of the UECapabilityInformation message as follows: The ue-CapabilityRAT-Container may include UE radio access capability for UTRA-FDD with rat-Type set to utra-fdd.

[0343] The terminal device 1 determines whether to segment the RRC message based on the received field rrc-SegAllowed. If the annotation is enabled and the encoded RRC message is greater than the maximum supported PDCP SDU, If the size is larger than the specified size, the contents of the UECapabilityInformation message are set as follows: The UL message segment transfer procedure may be initiated.

[0344] In cases other than those mentioned above, the terminal device 1 shall set the contents of the UECapabilityInformation message as follows: The UECapabilityInformation message can be sent to the lower layer. At this point the procedure may be terminated.

[0345] The terminal device 1 is a UE for which the NR or E-UTRA network is nr, eutra-nr or eutra. If the capability is requested, the procedure may be called. This procedure may be called once for each rat-Type requested. The terminal device 1 shall ensure that the network requests the same fields with the same values. It may ensure that the capability set ID is consistent across capability sets, capability set combinations, and band combinations in all three combined UE capability containers, which may be fields in the UE-CapabilityRequestFilterNR, UE-CapabilityRequestFilterCommon, and UECapabilityEnquiry messages.

[0346] Capability queries that do not use frequencyBandListFilter do not have to be supported.

[0347] In EN-DC, the gNB may require capabilities for RAT types nr and eutra-nr. It may also use featureSets in UE-NR-Capability together with featureSetCombinations in UE-MRDC-Capability to determine NR UE capabilities for supported MRDC band combinations. Similarly, the eNB may require capabilities for RAT types eutra and eutra-nr. It may also use featureSetsEUTRA in UE-EUTRA-Capability together 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 in all three containers. The consistency requirement may mean that there are no undefined feature sets and feature set combinations.

[0348] If the UE is unable to include all feature sets and feature set combinations due to message size or list size constraints, it may be up to the UE implementation to decide which feature sets and feature set combinations to prioritize.

[0349] Terminal device 1 uses the filter criteria of capabilityRequestFilterCommon (if included). According to the above, the "band combination" consists of only the bands included in the frequencyBandListFilter. You can also create a list of "candidates" by prioritizing the frequencyBandListFilter. The prioritization may include first the combination of bands that includes the first listed band, then the remaining combinations of bands that includes the second listed band, etc. Here, for each band in the band combination, the band parameters are maxBandwidthRequestedDL, maxBandwidthRequestedUL, maxCarriersRequestedDL, maxCarriersRequestedUL may not exceed ca-BandwidthClassDL-EUTRA or ca-BandwidthClassUL-EUTRA, whichever is received.

[0350] The terminal device 1 determines whether the network (E-UTRA) includes a eutra-nr-only field for each band combination included in the list of "candidate band combinations", or If the requested rat-type is eutra, the NR-only band combination is called "Band combination". You may remove it from the list of "suggested replacements."

[0351] The capability for nr may be required by the E-UTRA network, but may be indicated by the eutra-nr-only flag not to include NR band combinations in the UE-NR-Capability. In this case, the above procedure may remove all NR-only band combinations from the candidate list, thereby avoiding the corresponding feature set combinations and the inclusion of the following feature sets:

[0352] The terminal device 1 determines whether the combination of spare bands has the same capabilities as other band combinations included in the list of "candidate band combinations", or whether the combination of spare bands is generated by releasing at least one SCell or an uplink configuration of an SCell. If so, the band combination may be deleted from the list of "candidate band combinations".

[0353] If only nr functionality is requested from the network, the E-UTRA band number may be included in frequencyBandListFilter so that the UE then has the full feature set required for the requested eutra-nr functionality. At this point in the procedure, the list of "candidate band combinations" consists of all NR- and and / or a combination of E-UTRA and NR bands. The candidate list of may be used to derive the band combinations, feature set combinations, and feature sets to be reported in the requested capability container.

[0354] If the requested rat-Type is nr, the terminal device 1 adds as many NR-only band combinations as possible from the list of "candidate band combinations" to the supportedBandCombinationList. , may be included from the first entry. Also, if an srs-SwitchingTimeRequest is received and SRS carrier switching is supported, for each band combination , srs-SwitchingTimesListNR may be included. In this case, srs-SwitchingTimeRequested may be set to true.

[0355] If the requested rat-Type is nr, the terminal device 1 may include in featureSetCombinations feature set combinations referenced from corresponding band combinations included in supportedBandCombinationList. Also, the terminal device 1 may compile a list of "candidate feature set combinations" referenced from the list of "candidate band combinations" by excluding entries (rows of feature set combinations) with the same or lower capabilities.

[0356] When the terminal device 1 receives an uplinkTxSwitchRequest with the requested rat-Type being nr, In this case, only NRs that support UL TX switching are selected from the list of "Candidate Band Combinations". The band combinations may be included in the supportedBandCombinationList-UplinkTxSwitch as far as possible from the first entry. If SRS carrier switching is supported, In this case, srs-SwitchingTimeRequested may be set to true.

[0357] When the terminal device 1 receives an uplinkTxSwitchRequest with the requested rat-Type being nr, If so, featureSetCombinations contains the bands included in supportedBandCombinationList-UplinkTxSwitch. It may also include a function set combination referenced from the supported band combination.

[0358] This list of "candidate feature set combinations" is not limited to E-UTRA-NR band combinations. The list may include combinations of feature sets used exclusively for NR, rather than just NR. This list may be used to derive the list of referenced NR feature sets from the combinations of feature sets in the UE-NR-Capability container and the combinations of feature sets in the UE-MRDC-Capability container.

[0359] If the requested rat-Type is nr, the terminal device 1 may include in featureSets a function set referred to from the "candidate combination of function sets." Feature sets with parameters exceeding either one may be accepted or rejected.

[0360] If the requested rat-Type is eutra-nr, the terminal device 1 may enter as many E-UTRA-NR band combinations as possible from the list of "candidate band combinations" in the supportedBandCombinationList and / or supportedBandCombinationListNEDC-Only, starting from the first entry. If switching is supported, for each band combination, srs-SwitchingTimesListNR and srs-SwitchingTimesListEUTRA may be included, with srs-SwitchingTimeRequested set to true.

[0361] If the requested rat-Type is eutra-nr, the terminal device 1 may include in featureSetCombinations, in accordance with the preceding paragraph, feature set combinations referenced from the supported band combinations included in supportedBandCombinationList. Also, the terminal device 1 may compile a list of "candidate feature set combinations" referenced from the list of "candidate band combinations" by excluding entries (rows of feature set combinations) with the same or lower capabilities.

[0362] The terminal device 1 receives an uplinkTxSwitchRequest with the requested rat-Type being eutra-nr. If this is the case, the supportedBandCombinationList-UplinkTxSwitch will contain the band combination candidates. Select the NR-only band combination that supports UL TX switching from the list of Also, if an srs-SwitchingTimeRequest is received and SRS carrier switching is supported, the , srs-SwitchingTimesListNR may be included. In this case, srs-SwitchingTimeRequested may be set to true.

[0363] The terminal device 1 receives an uplinkTxSwitchRequest with the requested rat-Type being eutra-nr. If this is the case, featureSetCombinations will contain supportedBandCombinationList-UplinkTxSwitch. It may also include a function set combination referenced from the support band combination included in.

[0364] If the requested rat-type is eutra, the terminal device 1 The list of "candidate combinations of function sets" referenced from the list may be compiled by excluding entries (lines of combinations of function sets) that have the same or lower capabilities.

[0365] This list of "candidate feature set combinations" may include feature set combinations used for E-UTRA-NR band combinations, and may be used to derive the list of E-UTRA feature sets referenced from the feature set combinations in the UE-MRDC-Capability container.

[0366] If the requested rat-Type is eutra, the terminal device 1 sets featureSetsEUTRA to (UE-EUTRA A-Capability) may include feature sets referenced from "Feature Set Combination Candidates". Also, feature sets with parameters exceeding ca-BandwidthClassDL-EUTRA or ca-BandwidthClassUL-EUTRA may be received or excluded.

[0367] Terminal device 1 determines that the requested rat-Type is nr and the eutra-nr-only field is network The received frequencyBandListFilter may be included in the field appliedFreqBandListFilter of the requested UE capability, except when it is included in the field

[0368] If ue-CapabilityEnquiryExt is included in the network, the terminal device 1 may include the received ue-CapabilityEnquiryExt in the receivedFilters field.

[0369] Multiple TRPs (Transmission Reception Points or Transmit / Receive Points) are used. The base station device 3 may be configured with multiple TRPs (Multi-TRP). The terminal device 1 may be scheduled by two TRPs in one serving cell. In Multi-TRP, one of the operation modes of single-DCI and multi-DCI may be used. In Multi-TRP, uplink control may be completed in the MAC layer and the physical layer. In Multi-TRP, MAC Downlink control may be completed at the layer and the physical layer. In the Single-DCI mode, the terminal device 1 may be scheduled by the same DCI for two TRPs. In the Multi-DCI mode, the terminal device 1 may be scheduled by independent DCI from each TRP. In the Multi-DCI mode, each TRP in the Multi-TRP may be identified by TRP information. That is, one TRP in the Multi-TRP may be identified by one TRP information. stomach.

[0370] The TRP information may be used to select one TRP. Also, one control resource set (CORESET) may be associated with an index of a CORESET resource pool. The terminal device 1 may transmit a PUSCH based on the index of the CORESET resource pool. may be transmitted.

[0371] The TRP information may be a CORESET pool index. The TRP information may be associated with an index of a CORESET resource pool. For example, the first CORESET pool index The CORESET pool index may be associated with a first TRP, and the second CORESET pool index may be associated with a second TRP. The TRP information may be associated with a pool (or pool index) of TCI states. The first one or more TCI states may be associated with the first TCI state pool. The second one or more TCI states may be associated with the second TCI index. It may be associated with the pool index of the state.

[0372] A plurality of panels may be used. The terminal device 1 may be configured with a plurality of panels (multi-panel). The terminal device 1 performs scheduling for two panels in one terminal device. In the multi-panel mode, one of the single-DCI and multi-DCI operation modes may be used. In the multi-panel or SDM scheme, uplink control may be completed in the MAC layer and the physical layer. In the multi-panel or SDM scheme, downlink control may be completed in the MAC layer and the physical layer. In the single-DCI mode, the terminal device 1 may be scheduled by the same DCI for the two panels. In the multi-DCI mode, the terminal device 1 may be scheduled by an independent DCI for each panel. Multi-DCI In the Multi-Panel mode, each panel may be identified by panel information. In other words, one panel of a Multi-Panel is identified by one piece of panel information. Good too.

[0373] A plurality of transmit spatial filters may be used. The terminal device 1 may transmit the PUSCH according to the SDM scheme. In the SDM scheme, either single-DCI or multi-DCI operation mode may be used. In the SDM scheme, uplink control may be completed in the MAC layer and the physical layer. In the Single-DCI mode, the terminal device 1 is scheduled by the same DCI for two transmit spatial filters. In the Multi-DCI mode, the terminal device 1 may use independent DCI for each transmit spatial filter. In Multi-DCI mode, scheduling may be performed according to the The transmit spatial filter may be specified by the transmit spatial filter information, i.e., one transmit spatial filter in the SDM scheme may be identified by one transmit spatial filter information.

[0374] The panel information or transmit spatial filter information is used to select one panel or transmit spatial filter. Also, one control resource set (CORESET) may be associated with an index of a CORESET resource pool. Also, one TCI state set may be associated with an index of a TCI state pool. Also, one spatial relationship information set may be associated with an index of a spatial relationship information pool. The terminal device 1 may receive the index of the CORESET resource pool, the index of the TCI state pool, PUSCH based on some or all of the indexes of the spatial relationship information pool may be transmitted.

[0375] The panel information or transmit spatial filter information may be a CORESET pool index. The panel information or transmit spatial filter information is indexed by the CORESET resource pool. For example, a first CORESET pool index may be associated with a first panel or may be associated with a transmit spatial filter, and the second CORESET pool index may be The panel information or transmit spatial filter information may be a TCI state pool index. The filter information may be associated with an index into the TCI state pool. A TCI State Pool Index is associated with the first panel or transmit spatial filter. and the second TCI State Pool index may be a second panel or transmission spatial filter. The panel information or transmit spatial filter information may be associated with a spatial relationship information pool index. The panel information or transmit spatial filter information may be associated with an index of the spatial relationship information pool. For example, a first spatial relationship information pool index may be associated with a first panel or transmit spatial filter, and a second spatial relationship information pool index may be associated with a second panel or transmit spatial filter.

[0376] The terminal device 1 may be adapted to STxMP (Simultaneous Transmission with Multi Panel). STxMP may be adapted for the first uplink physical channel 9100 and the second uplink physical channel 9101. When STxMP is adapted, the terminal device 1 may be adapted to transmit the first uplink physical channel 9100 and the second uplink physical channel 9101. Channel 9100 and second uplink physical channel 9101 may be transmitted simultaneously. When used, the terminal device 1 transmits the first uplink physical channel 9100 and the second uplink physical channel When STxMP is applied, a first Code Division Multiplexing (CDM) group of a first DMRS port designated for a first uplink physical channel 9100 may be different from a second CDM group of a second DMRS port designated for a second uplink physical channel 9101. The first CDM group and the second CDM group may not be expected to be the same. One or both of the first DMRS port and the second DMRS port may be indicated by the antenna port field in one DCI format. The CDM group may be indicated by the antenna port field. When STxMP is applied, the first uplink physical channel 9100 and the second uplink physical channel 9101 are one. One precoding matrix may correspond to the DCI format If STxMP is applied, the first The uplink physical channel 9100 corresponds to a first TCI state and a second uplink The link physical channel 9101 may correspond to the second TCI state. The state may be indicated by a TCI (Transmission Configuration Indication) field in DCI format 1_1 / 1_2. When STxMP is applied, the first uplink physical The channel 9100 may correspond to a first uplink transmit spatial filter (UL Tx Spatial filter), and the second uplink physical channel 9101 may correspond to a second uplink transmit spatial filter. The first uplink transmit spatial filter may be determined by an SRS resource indication (SRI) field in the DCI format. The second uplink transmit spatial filter The filter may be determined by the Second SRI field in the DCI format.

[0377] When STxMP is applied, the first transmission level corresponding to the first uplink physical channel 9100 is The number of layers (ranks) of the first uplink physical channel 9100 may be the same as or different from the number of second transmission layers (ranks) corresponding to the second uplink physical channel 9101. The difference between the number of first transmission layers and the number of second transmission layers is not expected to be two or more. When STxMP is applied, the first uplink physical channel 9100 and the second uplink physical channel 9101 may fully overlap. When STxMP is applied, the first uplink physical channel 9100 and the second uplink physical channel 9101 are expected to partially overlap. When STxMP is applied, the first uplink physical channel 9100 The corresponding first transport block may not be expected to be different from the second transport block corresponding to the second uplink physical channel 9101. In this case, each of the first uplink physical channel 9100 and the second uplink physical channel 9101 may not be expected to carry two transport blocks (codewords). When STxMP is applied, the first uplink physical channel 9100 and the second uplink physical channel 9110 are It may not be expected that the upper layer parameter sfnSchemePusch or the upper layer parameter sfnSchemePucch is configured for one or both of the link physical channels 9101. If the upper layer parameter sfnSchemePusch is configured for a PUSCH, the DMRS port of the PUSCH may use multiple (e.g., two) TCI state reference signals and QCLs. If the higher layer parameter sfnSchemePucch is configured for a PUCCH, the DMRS port of the PUCCH may be a reference signal and a QCL for multiple (e.g., two) TCI states. It is also possible.

[0378] It may be configured that STxMP is applied to one or both of the first uplink physical channel and the second uplink physical channel. The application of STxMP may be configured by a higher layer parameter. The application of STxMP may be configured based on terminal capabilities. For example, the application of STxMP for PUSCH may be determined by For example, the application of STxMP for the PUCCH may be configured by a dedicated higher layer parameter for the PUCCH. The application of STxMP may be indicated by a DCI format.

[0379] When any of sdmSchemePusch, sdm, multiPanel, multiTRP, multiPanelAndMultiTRP, puschRepetition, multiPanelAndPuschRepetition, or multiTRPAndPuschRepetition is set in the RRC parameter or DCI format, the first uplink physical channel STxMP is applied for one or both of the first uplink physical channel and the second uplink physical channel. By setting some or all of sdmSchemePusch, sdm, multiPanel, multiTRP, multiPanelAndMultiTRP, pushRepetition, multiPanelAndPuschRepetition, and multiTRPAndPuschRepetition in the RRC parameters or DCI format, It may be configured that STxMP is applied to one or both of the first uplink physical channel and the second uplink physical channel.

[0380] A terminal device 1 receives a PDCCH in which DCI is arranged, transmits a PUSCH instructed to transmit by the DCI, and a first RRC parameter and a second RRC parameter are set, the first RRC parameter is information for defining a codebook subset for the PUSCH, the second RRC parameter is information indicating the number of antenna groups of the terminal, and the If the first RRC parameter is a first coherent type, and if the second RRC parameter indicates 2 or 4, the first TPMI field in the DCI contains first information and second a second TPMI field in the DCI indicating third information; and determining a PUSCH based on at least the received signal, the second information, and the third information. A precoding matrix may be determined.

[0381] The terminal device 1 may receive a PDCCH in which DCI is arranged. The PUSCH may be transmitted instructed by the first RRC parameter and the second RRC parameter. The first RRC parameter may be information for defining a codebook subset for the PUSCH. The second RRC parameter may be information for defining a codebook subset for the PUSCH. The first RRC parameter may be information indicating the number of antenna groups of the terminal. If the coherence type is one, and the second RRC parameter indicates 2 or 4, In this case, the first TPMI field in the DCI may indicate the first information and the second information. If the first RRC parameter is a first coherent type, the first TPMI field in the DCI may indicate first information and second information. If the second RRC parameter indicates 2 or 4, the first TPMI field in the DCI may indicate first information and second information. If the first RRC parameter is a first coherent type, and If the second RRC parameter indicates 2 or 4, the second TPMI field in the DCI may indicate third information. If the second RRC parameter indicates 2 or 4, the second TPMI field in the DCI may indicate the third information. A precoding matrix for the PUSCH may be determined based on at least the first information, the second information, and the third information. A precoding signal for the PUSCH is generated based on at least first information and the third information. A precoding matrix for the PUSCH may be determined based at least on the first information. A precoding matrix for the PUSCH may be determined based at least on the second information. The precoding matrix for the PUSCH may also be determined based on the A precoding matrix for the PUSCH is determined based on at least the third information. may be determined.

[0382] The first RRC parameter may be a codebookSubset. The first RRC parameter may correspond to some or all of a fully coherent capability, a partially coherent capability, and a non-coherent capability. The first RRC parameter may be set to one of fullyAndPartialAndNonCoherent, partialAndNonCoherent, and nonCoherent.

[0383] The first RRC parameter may be codebookSubset-r18. The first RRC parameter may correspond to some or all of a fully coherent capability, a partially coherent capability, and a non-coherent capability. The first RRC parameter may be set to one of fully Coherent, partial Coherent, and non-Coherent. The first RRC parameter may be set to one of fully Coherent, 4portsPartialCoherent, 2portsPartialCoherent, and non-Coherent. It may be set.

[0384] The first coherence type may be one or both of fullyAndPartialAndNonCoherent and fullyCoherent, or may be some or all of partialAndNonCoherent, partialCoherent, and 4portPartialCoherent.

[0385] The second RRC parameter may be information indicating the number of antenna groups. The first RRC parameter may indicate some or all of 1, 2, 4, and 8. The meter may indicate whether the number of antenna groups is 1, 2, 4, or 8. The first RRC parameter may be any one of numberOfAntennaGroup, numberOfCoherenceGroup, numberOfCoherentGroup, numberOfAntennaPanel, nrofAntennaGroup, nrofCoherenceGroup, nrofCoherentGroup, and nrofAntennaPanel.

[0386] A method for indicating the phase control information φ between the second precoding matrices W2 and W2 will be described below.

[0387] The first TPMI field may indicate the first information using 4 bits that are the MSB. The first TPMI field may indicate the second information using 2 bits which are LSBs. One TPMI field may indicate the first information using five bits that are the MSB. The first TPMI field may indicate the second information using one bit that is the LSB. The first TPMI field may indicate the first information using four bits that are the LSB. The first TPMI field The first TPMI field may indicate the first information using 2 bits which are the MSB. The first TPMI field may indicate the first information using 5 bits which are the LSB. The first information may be represented by one bit.

[0388] The first information may be a TPMI index. The first information may also be related to a PMI. The first information may be related to an antenna port. The first information may be related to fully coherent. The first information may indicate only TPMIs related to fully coherent. The first information may be based on a table including TPMIs related to fully coherent. The first information may indicate a TPMI index based on a table including only TPMIs related to fully coherent transmission. For example, in the case of two antenna ports and one layer transmission, the range of values ​​of the TPMI index indicated by the first information may be from 2 to 5. For example, In the case of four antenna ports and two-layer transmission, the value of the TPMI index indicated by the first information may range from 1 to 2. For example, in the case of four antenna ports and one-layer transmission, the first information The range of the TPMI index value indicated by the first information may be from 12 to 27. For example, in the case of four antenna ports and two-layer transmission, the range of the TPMI index value indicated by the first information may be from 14 to 21. For example, in the case of four antenna ports and three-layer transmission, the range of the TPMI index value indicated by the first information may be from 3 to 6. For example, in the case of four antenna ports and four-layer transmission, the range of the TPMI index value indicated by the first information may be from 3 to 4.

[0389] 11 is a diagram showing an example of a table indicating TPMI index according to one aspect of this embodiment. g 11002 is an example of a table indicating the TPMI index when the second RRC parameter is N=4. g This is an example of a table indicating the TPMI index when the value of the codebookSubset in FIG. 11 indicates 2. The codebookSubset setting in FIG. 11 may be fullyAndPartialAndNonCoherent. stomach.

[0390] For example, the second RRC parameter is N g If the second RRC parameter indicates TPMI=4 and a bit field of the first TPMI field indicates 0, then 1 layer: TPMI=2 may be indicated. Parameter N gIf the second RRC parameter N indicates 4 and a bit field of the first TPMI field indicates 4, 2 layer: TPMI=1 may be indicated. g If the second RRC parameter N indicates N = 2 and a bit field of the first TPMI field indicates 0, 1 layer: TPMI = 12 may be indicated. g = 2, and the first TPMI field If a bit field indicates 16, 2 layer: TPMI=14 may be indicated. For example, The RRC parameters of N g If the second RRC parameter N indicates N = 2 and a bit field of the first TPMI field indicates 24, 3 layer: TPMI = 3 may be indicated. g If TPMI=2 and a bit field of the first TPMI field indicates 28, 4 layer: TPMI=3 is indicated. This may be done.

[0391] The second RRC parameter is N g If the second RRC parameter indicates N = 4, the first information may be determined based on a value obtained by adding 3 to a value indicated by a certain bit field of the first TPMI field. g If the value indicates 2, add 32 to the value indicated by a bit field in the first TPMI field. The first information may be determined based on the calculated value.

[0392] The second information may be information for determining a unit of phase control. The second information may be related to BPSK, QPSK, 8PSK, or 16PSK. For example, when the phase control value is expressed as exp(j2πn / m), the second information may indicate that m, which corresponds to the unit of phase control, is one of 2, 4, 8, and 16. For example, when the second information is related to BPSK, it indicates m=2. For example, if the second information relates to QPSK, it may indicate m=4. , if the second information relates to 8PSK, it may indicate m=8. For example, the second information is associated with 16PSK, m may indicate m=16. For example, a bit field corresponding to the second information being 0 may indicate m=2. For example, a bit field corresponding to the second information being 1 may indicate m=4. For example, a bit field corresponding to the second information being 2 may indicate m=8. For example, a bit field corresponding to the second information being 3 may indicate m=16.

[0393] For example, the second RRC parameter is N g = 4, the bit of the first TPMI field The first information may be indicated by using 3 bits in the field. For example, Data is N g If the value indicates 4, the antenna is set using 1 bit of the bit field of the first TPMI field. The antenna layout may show an antenna group in one dimension. For example, 0 may indicate that the antenna groups are arranged in only one dimension. For example, 1 may indicate that the antenna groups are arranged in two dimensions. For example, the second RRC parameter N g = 4, the second TPMI field is set using 2 bits of the bit field of the first TPMI field. For example, if a bit corresponding to an antenna layout indicates 0, the second information may indicate a value of m associated with φ. For example, if a bit corresponding to an antenna layout indicates 1, the second information may indicate a value of m associated with φ. For example, , corresponding to the antenna layout, but if bit indicates 1, the second information is φ H and φ V may denote one or both of the values ​​of m associated with φ. This may be interpreted as indicating the value of m.

[0394] For example, the second RRC parameter is N g = 2, the bit of the first TPMI field The first information may be indicated by using 5 bits in the field. For example, Data is N g = 2, one bit of the bit field of the first TPMI field is used to For example, the second information may indicate one φ.

[0395] The third information may be information for determining a phase control value. The third information may be related to BPSK, QPSK, 8PSK, or 16PSK. For example, when the phase control value is represented as exp(j2πn / m), the second information may be information for determining a phase control value, where n is any value between 0 and 15. It may also be indicated that

[0396] The third information may be determined based on the second information. For example, if the second information indicates one value of m associated with φ, the third information may indicate one value of n associated with φ. For example, if the second information indicates two values ​​of m associated with φ, the third information may indicate two values ​​of n associated with φ. For example, if the second information indicates one value of m, the third information may indicate one value from some or all of n=0,...,m-1. For example, if the second information indicates two values ​​of m, the third information may be It may show two values, some or all of which are -1.

[0397] The first information includes terminal capability information, RRC parameters, the number of antenna ports, The second information may be determined based on at least some or all of the terminal capability information, the RRC parameters, the number of antenna ports, and the terminal antenna configuration. The third information may be determined based on at least some or all of the following: terminal capability information, RRC parameters, the number of antenna ports, and the terminal antenna configuration. The first information may also be determined based on d H , d V , d G-H , d G-V The second information may be determined based at least on information relating to d H , d V , d G-H , d G-V The third information may be determined based at least on information relating to d H , d V , d G-H , d G-V The determination may be based at least on information relating to

[0398] When the number of layers is 5 to 8, the first TPMI field may not include the fourth information. When the number of layers is 5 to 8, the second TPMI field may not include the fourth information. The fourth information may be the number of layers. The fourth information may be the number of ranks. For example, the number of layers may be indicated by the Antenna ports field. For example, If the number of layers is 5 to 8, the first TPMI field may include only TPMI. For example, if the number of layers is 5 to 8 as indicated by the Antenna ports field, the first The TPMI field may contain only TPMI.

[0399] Various aspects of the device according to one aspect of this embodiment will be described below.

[0400] (1) In order to achieve the above object, the aspects of the present invention provide the following means. That is, a first aspect of the present invention is a terminal device, comprising: a receiving unit that receives a PDCCH on which DCI is arranged; and a transmitting unit that transmits a PUSCH instructed to transmit by the DCI; wherein a first RRC parameter and a second RRC parameter are set, and the first RRC parameter is a the second RRC parameter is information for defining a codebook subset for the PUSCH, the second RRC parameter is information indicating the number of antenna groups of a terminal, and the first RRC parameter is information indicating the number of antenna groups of a terminal. is the first coherence type, and the second RRC parameter is 2 or 4 If the first TPMI field in the DCI indicates the first information and the second information, The second TPMI field in the DCI indicates third information, and the first information and the second information and performing precoding for the PUSCH based at least on the information and the third information. The matrix is ​​determined.

[0401] (2) Furthermore, the first coherence type is one or both of fullyAndPartialAndNonCoherent and fullyCoherent.

[0402] (3) Furthermore, the first information is the TPMI index.

[0403] (4) Furthermore, the second information is information for determining the unit of phase control.

[0404] (5) Furthermore, the second information is determined based at least on capability information of the terminal.

[0405] (6) Furthermore, the third information is information for determining a value for phase control.

[0406] (7) Furthermore, the third information is at least the first RRC parameter and the second information. It is determined based on both.

[0407] (8) A second aspect of the present invention is a base station apparatus, comprising: a transmitter that transmits a PDCCH in which DCI is arranged; and a receiver that receives a PUSCH instructed to transmit by the DCI; Setting a first RRC parameter and a second RRC parameter, is information for defining a codebook subset for the PUSCH, and the second The RRC parameter is information indicating the number of antenna groups of a terminal, and when the first RRC parameter is a first coherent type and the second RRC parameter is 2 or less, If the first TPMI field in the DCI indicates first information and second information, and, understanding that the second TPMI field in the DCI indicates third information, The PUSCH is determined based on at least the information, the second information, and the third information. It is understood that the precoding matrix for

[0408] (9) Furthermore, the first coherence type is one or both of fullyAndPartialAndNonCoherent and fullyCoherent.

[0409] (10) Furthermore, the first information is a TPMI index.

[0410] (11) Furthermore, the second information is information for determining the unit of phase control.

[0411] (12) Furthermore, the second information is determined based at least on capability information of the terminal.

[0412] (13) Furthermore, the third information is information for determining a value of phase control.

[0413] (14) Furthermore, the third information may include at least the first RRC parameter and the second information. The decision will be based on at least

[0414] (15) A third aspect of the present invention is a communication method used in a terminal device, comprising: receiving a PDCCH in which the DCI is arranged; and transmitting a PUSCH instructed to transmit by the DCI. and receiving a step of receiving a first RRC parameter and a second RRC parameter, wherein the first RRC parameter is information for defining a codebook subset for the PUSCH, and the second RRC parameter is information indicating the number of antenna groups of a terminal. and the first RRC parameter is a first coherence type, and If the second RRC parameter indicates 2 or 4, a first TPMI field in the DCI indicates first information and second information, and a second TPMI field in the DCI indicates third information. A precoding matrix for the PUSCH is determined based on at least the first information, the second information, and the third information.

[0415] The programs that run on the base station device 3 and terminal device 1 according to the present invention may be programs that control a CPU (Central Processing Unit) or the like (programs that make a computer function) so as to realize the functions of the above-described embodiments according to the present invention. Information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing. Then, various ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive) The data is stored in the , and is read, modified, and written by the CPU as needed.

[0416] Note that the terminal device 1 and part of the base station device 3 in the above-described embodiment may be realized by a computer. In this case, a program for realizing this control function may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read into a computer system and executed to realize the function.

[0417] The term "computer system" as used herein refers to a computer system built into the terminal device 1 or base station device 3, and includes hardware such as an OS and peripheral devices. The term "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, as well as hard disks built into the computer system. This refers to storage devices such as hard disks.

[0418] Furthermore, the term "computer-readable recording medium" may include a medium that dynamically stores a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, or a medium that stores a program for a fixed period of time, such as volatile memory within a computer system that serves as a server or client in such a case. The program may also be one that realizes part of the above-mentioned functions, or one that can realize the above-mentioned functions in combination with a program already stored in the computer system.

[0419] Furthermore, the base station device 3 in the above-described embodiment can also be realized as a collection (device group) consisting of multiple devices. Each of the devices constituting the device group may have some or all of the functions or functional blocks of the base station device 3 according to the above-described embodiment. It is sufficient for the device group to have all of the functions or functional blocks of the base station device 3. Furthermore, the terminal device 1 according to the above-described embodiment can also communicate with the base station device as a collection.

[0420] Furthermore, the base station device 3 in the above-described embodiment is an EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or an NG-RAN (NextGen RAN, NR RAN). In addition, the base station device 3 in the above-described embodiment may be configured to It may have some or all of the functions of its higher-level node.

[0421] Furthermore, some or all of the terminal device 1 and base station device 3 in the above-described embodiments may be realized as an LSI, which is typically an integrated circuit, or may be realized as a chipset. Each functional block of the terminal device 1 and the base station device 3 may be individually integrated into a chip, or part or all of them may be integrated into a chip. The integrated circuit method is not limited to LSI, but may be a dedicated circuit, Alternatively, it may be realized by a general-purpose processor. In addition, with the advancement of semiconductor technology, it is expected that LSI will replace the general-purpose processor. When integrated circuit technology emerges, it is also possible to use integrated circuits based on that technology.

[0422] Furthermore, in the above-described embodiment, a terminal device is described as an example of a communication device, but the present invention is not limited to this and can also be applied to terminal devices or communication devices such as stationary or non-movable electronic devices installed indoors or outdoors, for example, AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other household appliances.

[0423] Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment and includes design modifications within the scope of the invention. Furthermore, the present invention is susceptible to various modifications 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 the present invention. Furthermore, configurations in which elements described in the above embodiments are substituted with elements that achieve the same effect are also included. [Explanation of symbols]

[0424] 1(1A, 1B, 1C) Terminal equipment 3 Base station equipment 10, 30 Radio transmitter / receiver 10a, 30a Radio transmitter 10b, 30b Wireless receiver 11, 31 Antenna section 12, 32 RF section 13, 33 Baseband section 14, 34 Upper layer processing unit 15, 35 Medium access control layer processing unit 16, 36 Radio resource control layer processing unit 91, 92, 93, 94 Search area set 300 Component Carriers 301 Primary Cell 302, 303 Secondary Cell 700 Set of resource elements for PSS 710, 711, 712, 713 Set of resource elements for PBCH and DMRS for PBCH 720 Set of Resource Elements for SSS 3000 points 3001, 3002 Resource Grid 3003, 3004 BWP 3011, 3012, 3013, 3014 offset 3100, 3200 common resource block set 10001 Cross-polarized antenna 10002 Antenna Group 11001, 11002 TPMI table

Claims

1. a receiving unit for receiving a PDCCH in which DCI is arranged; a transmitter that transmits a PUSCH instructed to transmit by the DCI, a first RRC parameter and a second RRC parameter are set; the first RRC parameter is information for defining a codebook subset for the PUSCH; the second RRC parameter is information indicating the number of antenna groups of a terminal; If the first RRC parameter is a first coherent type, and if the second RRC parameter indicates 2 or 4, the first TPMI field in the DCI contains first information. and indicates second information, and a second TPMI field in the DCI indicates third information; determining a precoding matrix for the PUSCH based at least on the first information, the second information, and the third information; Terminal device.

2. the first coherence type is one or both of fullyAndPartialAndNonCoherent and fullyCoherent; The terminal device according to claim 1 .

3. The first information is a TPMI index. The terminal device according to claim 1 .

4. the second information is information for determining a unit of phase control; The terminal device according to claim 1 .

5. The second information is determined based at least on capability information of the terminal. The terminal device according to claim 1 .

6. the third information is information for determining a value of phase control; The terminal device according to claim 1 .

7. The third information is based at least on the first RRC parameter and the second information. To be determined, The terminal device according to claim 1 .

8. a transmitter for transmitting a PDCCH in which DCI is arranged; a receiving unit that receives a PUSCH instructed to transmit by the DCI, setting a first RRC parameter and a second RRC parameter; the first RRC parameter is information for defining a codebook subset for the PUSCH; the second RRC parameter is information indicating the number of antenna groups of a terminal; If the first RRC parameter is a first coherent type, and if the second RRC parameter indicates 2 or 4, the first TPMI field in the DCI contains first information. and a second TPMI field in the DCI indicates third information. Understand the and determining that a precoding matrix for the PUSCH is determined based at least on the first information, the second information, and the third information. Base station equipment.

9. The first coherence type is fullyAndPartialAndNonCoherent and fullyCoherent. Either one or both The base station device according to claim 8 .

10. The first information is a TPMI index. The base station device according to claim 8 .

11. the second information is information for determining a unit of phase control; The base station device according to claim 8 .

12. The second information is determined based at least on capability information of the terminal. The base station device according to claim 8 .

13. the third information is information for determining a value of phase control; The base station device according to claim 8 .

14. The third information is based at least on the first RRC parameter and the second information. To be determined, The base station device according to claim 8 .

15. A communication method used in a terminal device, receiving a PDCCH in which DCI is configured; transmitting a PUSCH the transmission of which is instructed by the DCI; a first RRC parameter and a second RRC parameter are set; the first RRC parameter is information for defining a codebook subset for the PUSCH; the second RRC parameter is information indicating the number of antenna groups of a terminal; If the first RRC parameter is a first coherent type, and if the second RRC parameter indicates 2 or 4, the first TPMI field in the DCI contains first information. and indicates second information, and a second TPMI field in the DCI indicates third information; determining a precoding matrix for the PUSCH based at least on the first information, the second information, and the third information; Communication method.

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