WO2023276933A1

WO2023276933A1 - Terminal device, base station device, and communication method

Info

Publication number: WO2023276933A1
Application number: PCT/JP2022/025528
Authority: WO
Inventors: 崇久福井; 友樹吉村; 翔一鈴木; 智造野上; 大一郎中嶋; 渉大内; 会発林; 涼太森本
Original assignee: シャープ株式会社
Priority date: 2021-06-29
Filing date: 2022-06-27
Publication date: 2023-01-05
Also published as: JPWO2023276933A1

Abstract

This terminal device comprises: a reception unit that receives a PDCCH including a DCI format for instructing transmission of a PUCCH; and a transmission unit that transmits the PUCCH. A given upper layer parameter is set for a PUCCH resource corresponding to the PUCCH. The given upper layer parameter selects one slot number from one set including one or more integer values. The number of slots in which the PUCCH is transmitted corresponds to the one slot number. When subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted corresponds to a first OFDM symbol number. The first OFDM symbol number is provided by the subslotLengthForPUCCH, and the one set includes at least 7.

Description

TERMINAL DEVICE, BASE STATION DEVICE, AND COMMUNICATION METHOD

The present invention relates to a terminal device, a base station device, and a communication method.
This application claims priority to Japanese Patent Application No. 2021-107439 filed in Japan on June 29, 2021, the content of which is incorporated herein.

Radio access schemes and radio networks for cellular mobile communications (hereinafter referred to as "Long Term Evolution (LTE)" or "EUTRA: Evolved Universal Terrestrial Radio Access") are the third generation partnership project ( ^3GPP : 3rd Generation Partnership Project). In LTE, a base station device is also called eNodeB (evolved NodeB), and a terminal device is also called UE (User Equipment). LTE is a cellular communication system in which a plurality of areas covered by base station devices are arranged in a cell. A single base station device may manage multiple serving cells.

3GPP is considering next-generation standards (NR: New Radio) to propose to IMT (International Mobile Telecommunication)-2020, which is the next-generation mobile communication system standard formulated by the International Telecommunication Union (ITU). is performed (Non-Patent Document 1). NR is required to meet the requirements assuming three scenarios: eMBB (enhanced Mobile BroadBand), mMTC (massive Machine Type Communication), and URLLC (Ultra Reliable and Low Latency Communication) within a single technology framework. there is

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

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

(1) A first aspect of the present invention is a terminal device, comprising a receiving unit for receiving a PDCCH including a DCI format that instructs transmission of PUCCH, and a transmitting unit for transmitting the PUCCH, A higher layer parameter is configured for a PUCCH resource corresponding to a slot in which the PUCCH is transmitted, wherein the certain higher layer parameter selects a slot number from a set including one or more integer values, and a slot in which the PUCCH is transmitted is the number of one slot, and when subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the first and if said subslotLengthForPUCCH is not set, the number of OFDM symbols included in each of the slots in which said PUCCH is transmitted is a second number of OFDM symbols, and said first number of OFDM symbols is: Given by the _{subslotLengthForPUCCH} , the number of second OFDM symbols is given by N ^slot symb, and the one set includes at least seven.

(2) A second aspect of the present invention is a base station apparatus, comprising: a transmitting unit that transmits a PDCCH including a DCI format that instructs transmission of the PUCCH; and a receiving unit that receives the PUCCH. , a higher layer parameter is configured for a PUCCH resource corresponding to the PUCCH, the certain higher layer parameter selects a slot number from a set including one or more integer values, and the PUCCH transmits The number of slots to be transmitted is the number of one slot, and when subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each slot in which the PUCCH is transmitted is , is the first number of OFDM symbols, and if said subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each of the slots in which said PUCCH is transmitted is said second number of OFDM symbols, said first OFDM symbols A number is given by said subslotLengthForPUCCH and said number of second OFDM symbols is given by N ^slot _symb , said one set comprising at least seven.

(3) In addition, a third aspect of the present invention is a communication method used in a terminal device, comprising: a step of receiving a PDCCH including a DCI format that instructs transmission of PUCCH; a step of transmitting the PUCCH; A higher layer parameter is configured for a PUCCH resource corresponding to the PUCCH, the certain higher layer parameter selects a slot number from a set including one or more integer values, and the PUCCH is transmitted is the number of one slot, and when subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the first number of OFDM symbols, and if the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the second number of OFDM symbols, and the first The number of OFDM symbols is given by the _{subslotLengthForPUCCH} , the number of second OFDM symbols is given by N ^slot symb, and the one set includes at least seven.

(4) A fourth aspect of the present invention is a communication method used in a base station apparatus, comprising the steps of: transmitting a PDCCH including a DCI format for instructing transmission of PUCCH; and receiving the PUCCH. , wherein a higher layer parameter is configured for a PUCCH resource corresponding to the PUCCH, wherein the certain higher layer parameter selects a slot number from a set including one or more integer values; The number of slots in which the PUCCH is transmitted is the number of one slot, and when subslotLengthForPUCCH is set for the PUCCH-Config corresponding to the PUCCH, OFDM symbols included in each slot in which the PUCCH is transmitted is the first number of OFDM symbols, and if the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the second number of OFDM symbols, and the first of OFDM symbols is given by said subslotLengthForPUCCH and said number of second OFDM symbols is given by N ^slot _symb , said one set comprising at least seven.

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

1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment; FIG. 7 is an example showing the relationship between subcarrier spacing setting μ, the number of OFDM symbols per slot N ^slot _symb , and CP (cyclic prefix) setting according to one aspect of the present embodiment. It is a figure which shows an example of the configuration method of the resource grid based on one aspect|mode of this embodiment. It is a figure which shows the structural example of the resource grid 3001 which concerns on one aspect|mode of this embodiment. 1 is a schematic block diagram showing a configuration example of a base station device 3 according to one aspect of the present embodiment; FIG. 1 is a schematic block diagram showing a configuration example of a terminal device 1 according to one aspect of the present embodiment; FIG. FIG. 4 is a diagram illustrating a configuration example of an SS/PBCH block according to one aspect of the present embodiment; FIG. 4 illustrates an example of a search area set monitoring opportunity according to an aspect of the present embodiments; FIG. 10 is a diagram illustrating an example of repeated transmission of PUCCH when a normal CP is configured according to one aspect of the present embodiment; FIG. 10 is a diagram illustrating an example of repeated transmission of PUCCH when an extended CP is configured according to one aspect of the present embodiment;

Embodiments of the present invention will be described below.

　floor(C) may be a floor function for the real number C. For example, floor(C) may be a function that outputs the largest integer that does not exceed the real number C. ceil(D) may be the ceiling function for real D. For example, ceil(D) may be a function that outputs the smallest integer in the range not less than the real number D. mod(E,F) may be a function that outputs the remainder of dividing E by F. mod(E,F) may be a function that outputs a value corresponding to the remainder of E divided by F. exp(G)=e^G. where e is the Napier number. ĤI indicates H raised to the I power. max(J,K) is a function that outputs the maximum of J and K. Here, max(J, K) is a function that outputs J or K when J and K are equal. min(L,M) is a function that outputs the maximum value of L and M. Here, min(L,M) is a function that outputs L or M when L and M are equal. round(N) is a function that outputs the integer value closest to N. “·” indicates multiplication.

At least OFDM (Orthogonal Frequency Division Multiplex) is used in the radio communication system according to one aspect of the present embodiment. An OFDM symbol is the time-domain unit of OFDM. An OFDM symbol includes at least one or more subcarriers. OFDM symbols are converted to time-continuous signals in baseband signal generation. In the downlink, at least CP-OFDM (Cyclic Prefix--Orthogonal Frequency Division Multiplex) is used. Either CP-OFDM or DFT-s-OFDM (Discrete Fourier Transform--spread--Orthogonal Frequency Division Multiplex) is used in the uplink. DFT-s-OFDM may be given by applying Transform precoding to CP-OFDM.

An OFDM symbol may be a designation containing a CP attached to the OFDM symbol. That is, a certain OFDM symbol may be configured to include the certain OFDM symbol and the CP attached to the certain OFDM symbol.

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). The terminal devices 1A to 1C are hereinafter also referred to as terminal device 1 (UE#1: User Equipment#1).

The base station device 3 may be configured including one or more transmission devices (or transmission points, transmission/reception devices, transmission/reception points). When the base station device 3 is composed of a plurality of transmission devices, each of the plurality of transmission devices may be arranged at different positions.

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

A serving cell may be configured to include one or both of one downlink component carrier (downlink carrier) and one uplink component carrier (uplink carrier). A serving cell may 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).

For example, one resource grid may be provided for each component carrier. Also, one resource grid may be provided for each set of one component carrier and some subcarrier spacing configuration μ. Here, the setting μ of the subcarrier spacing is also called numerology. For example, one resource grid may be given for a set of antenna ports p, subcarrier spacing settings μ, and transmission directions x.

The resource grid includes N ^{size, μ} _{grid, x} N ^RB _sc subcarriers. Here, the resource grid starts from the common resource block N ^start,μ _grid,x . The common resource block N ^start,μ _grid,x is also called a reference point of the resource grid.

The resource grid includes N ^{subframe, μ} _symb OFDM symbols.

The subscript x attached to the parameters related to the resource grid indicates the transmission direction. For example, a subscript x may be used to indicate either downlink or uplink.

N ^{size, μ} _{grid, x} is the offset setting indicated by a parameter provided by the RRC layer (eg parameter CarrierBandwidth). N ^{start, μ} _{grid, x} is the bandwidth setting indicated by the parameters provided by the RRC layer (eg, the parameter OffsetToCarrier). The offset setting and band setting are settings used to configure an SCS-specific carrier.

A subcarrier spacing (SCS: SubCarrier Spacing) Δf for a given subcarrier spacing setting μ may be Δf=2 ^μ ·15 kHz. Here, the subcarrier interval setting μ may indicate any of 0, 1, 2, 3, or 4.

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

A time unit _Tc may be used for representing the length of the time domain. The time unit T _c is T _c =1/(Δf _max ·N _f ). Δf _max =480 kHz. N _f =4096. The constant κ is κ=Δf _max ·N _f /(Δf _ref N _f,ref )=64. Δf _ref is 15 kHz. N _f,ref is 2048.

The transmission of signals in the downlink and/or the transmission of signals in the uplink may be organized into radio frames (system frames, frames) of length _Tf . T _f =(Δf _max N _f /100)·T _s =10 ms. A radio frame includes 10 subframes. The subframe length 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 .

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

A slot may consist of multiple OFDM symbols. For example, one slot may be composed of consecutive N ^slot _symb OFDM symbols. For example, in normal CP setting, N ^slot _symb =14 may be used. Also, in setting the extended CP, N ^slot _symb =12 may be used.

For a certain subcarrier spacing setting μ, the number and index of the slots contained in the subframe may be given. For example, the slot index n ^μ _s may be given in ascending order by integer values ranging from 0 to N ^{subframe, μ} _slot −1 in subframes. For the subcarrier spacing setting μ, the number and index of the slots contained in the radio frame may be given. Also, the slot indices n ^μ _s,f may be given in ascending order by integer values ranging from 0 to N ^frame,μ _slot −1 in the radio frame.

FIG. 3 is a diagram illustrating an example of a resource grid configuration method according to one aspect of the present embodiment. The horizontal axis of FIG. 3 indicates the frequency domain. _FIG . 3 shows a configuration example of a resource grid with a subcarrier interval of μ1 in a component carrier 300 and a configuration example of _a resource grid with a subcarrier interval of μ2 in a certain component carrier. In this way, one or more subcarrier intervals may be set for a given component carrier. Although it is assumed in FIG. 3 that μ ₁ =μ ₂ −1, various aspects of this embodiment are not limited to the condition μ ₁ =μ ₂ −1.

A component carrier 300 is a band having a predetermined width in the frequency domain.

Point 3000 is an identifier for specifying a certain subcarrier. Point 3000 is also called point A. A common resource block (CRB) set 3100 is a set of common resource blocks for _a subcarrier spacing setting μ1.

Of the common resource block set 3100, the common resource block containing the point 3000 (monochromatic 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 .

Offset 3011 is the offset from the reference point of common resource block set 3100 to the reference point of 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 includes N ^{size, μ} _grid1,x common resource blocks starting from the reference point of the resource grid 3001 .

An offset 3013 is the offset from the reference point of the resource grid 3001 to the reference point (N ^{start, μ} _{BWP, i1} ) of the BWP (BandWidth Part) 3003 of index i1.

Common resource block set 3200 is a set of common resource blocks for subcarrier spacing setting _μ2 .

Of the common resource block set 3200, the common resource block containing the point 3000 (single black block in the common resource block set 3200 in FIG. 3) is also called 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 .

Offset 3012 is the offset from the reference point of common resource block set 3200 to the reference point of resource grid 3002 . The offset 3012 is indicated by the _number of common resource blocks for the subcarrier spacing μ2. The resource grid 3002 includes N ^{size, μ} _{grid2, x} common resource blocks starting from the reference point of the resource grid 3002 .

Offset 3014 is the offset from the reference point of resource grid 3002 to the reference point (N ^{start, μ} _{BWP, i2} ) of BWP 3004 with index i2.

FIG. 4 is a diagram illustrating a configuration example of a resource grid 3001 according to one aspect of the present embodiment. In the resource grid of FIG. 4, the horizontal axis is the OFDM symbol index l _sym and the vertical axis is the subcarrier index k _sc . The resource grid 3001 includes N ^{size, μ} _{grid1, x} N ^RB _sc subcarriers and N ^{subframe, μ} _symb OFDM symbols. Within the resource grid, the resource identified by the subcarrier index k _sc and OFDM symbol index l _sym is also called a resource element (RE).

A resource block (RB) includes N ^RB _sc consecutive subcarriers. A resource block is a general term for a common resource block, a physical resource block (PRB), and a virtual resource block (VRB). where N ^RB _sc =12.

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

The common resource blocks for a given subcarrier spacing configuration μ are indexed in ascending order from 0 in the frequency domain in a given common resource block set. For a given subcarrier spacing configuration μ, the common resource block with index 0 contains (or collides with) point 3000 . The common resource block index n ^μ _CRB for a given subcarrier spacing setting μ satisfies the relationship n ^μ _CRB =ceil(k _sc /N ^RB _sc ). Here, the subcarrier with k _sc =0 is the subcarrier with the same center frequency as the center frequency of the subcarrier corresponding to point 3000 .

The physical resource blocks for a given subcarrier spacing configuration μ are indexed in ascending order from 0 in the frequency domain in a given BWP. A physical resource block index n ^μ _PRB for a given subcarrier spacing setting μ satisfies the relationship n ^μ _CRB =n ^μ _PRB +N ^{start, μ} _BWP,i . where N ^start,μ _BWP,i denotes the reference point of the BWP of index i.

A BWP is defined as a subset of common resource blocks contained in a resource grid. A BWP contains N ^size,μ _BWP,i common resource blocks starting from the reference point N ^start,μ _BWP,i of the BWP. A BWP configured for a downlink carrier is also called a downlink BWP. A BWP set for an uplink component carrier is also called an uplink BWP.

Antenna ports may be defined by the fact that the channel over which symbols at one antenna port are conveyed can be estimated from the channels over which other symbols at that antenna port are conveyed. 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. Also, the symbols may correspond to OFDM symbols. A symbol may also correspond to a resource block unit. Symbols may also correspond to resource elements.

The fact that the large scale property of the channel through which the symbols are conveyed at one antenna port can be estimated from the channel through which the symbols are conveyed at another antenna port is that the two antenna ports are QCL (Quasi Co-located ). Here, the large-scale characteristics may include at least the long-term characteristics of the channel. Large-scale properties are delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters. It may include at least part or all. A first antenna port and a second antenna port are QCL with respect to beam parameters if the receive beam expected by the receiver for the first antenna port and the receive beam expected by the receiver for the second antenna port and may be the same (or correspond). A first antenna port and a second antenna port are QCL with respect to beam parameters if the transmit beam expected by the receiver for the first antenna port and the transmit beam expected by the receiver for the second antenna port and may be the same (or correspond). The terminal device 1 assumes that the two antenna ports are QCL when the large-scale characteristics of the channel through which the symbols are transmitted at one antenna port can be estimated from the channel through which the symbols are transmitted at another antenna port. may be Two antenna ports being QCL may be assumed to be two antenna ports being QCL.

Carrier aggregation may be communication using aggregated multiple serving cells. Also, carrier aggregation may be communication using a plurality of aggregated component carriers. Also, carrier aggregation may be communication using a plurality of aggregated downlink component carriers. Also, carrier aggregation may be communication using a plurality of aggregated uplink component carriers.

FIG. 5 is a schematic block diagram showing a configuration example of the 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 part or all of a radio transmission/reception unit (physical layer processing unit) 30 and/or a higher layer processing unit 34 . The radio transmitting/receiving section 30 includes at least part or all of an antenna section 31 , an RF (Radio Frequency) section 32 , and a baseband section 33 . The upper layer processing unit 34 includes at least part or all of a medium access control layer processing unit 35 and a radio resource control (RRC: Radio Resource Control) layer processing unit 36 .

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

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

For example, the radio receiving unit 30b may receive PRACH. For example, the radio receiver 30b may receive and demodulate PUCCH. The radio receiver 30b may receive and demodulate the PUSCH. For example, the radio receiving unit 30b may receive PUCCH DMRS. For example, the radio receiving unit 30b may receive PUSCH DMRS. For example, the radio receiver 30b may receive UL PTRS. For example, the radio receiver 30b may receive SRS.

The upper layer processing unit 34 outputs the downlink data (transport block) to the radio transmission/reception unit 30 (or the radio transmission unit 30a). The upper layer processing unit 34 processes MAC (Medium Access Control) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, and RRC layer.

The medium access control layer processing unit 35 provided in the upper layer processing unit 34 performs MAC layer processing.

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

The wireless transmission/reception unit 30 (or wireless transmission unit 30a) performs processing such as modulation and encoding. The radio transmission/reception unit 30 (or the radio transmission unit 30a) modulates, encodes, and generates a baseband signal (converts to a time-continuous signal) of downlink data to generate a physical signal, and transmits the physical signal to the terminal device 1. . The radio transmitting/receiving unit 30 (or radio transmitting unit 30 a ) may allocate the physical signal to a certain component carrier and transmit it to the terminal device 1 .

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

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

The baseband unit 33 converts the analog signal input from the RF unit 32 into a digital signal. The baseband unit 33 removes the portion corresponding to the CP (Cyclic Prefix) from the converted digital signal, performs Fast Fourier Transform (FFT) on the CP-removed signal, and converts the signal in the frequency domain. Extract.

The baseband unit 33 performs an inverse fast Fourier transform (IFFT) on the data to generate an OFDM symbol, adds a CP to the generated OFDM symbol, generates a baseband digital signal, and generates a baseband signal. Converts band digital signals to analog signals. The baseband section 33 outputs the converted analog signal to the RF section 32 .

The RF unit 32 uses a low-pass filter to remove excess frequency components from the analog signal input from the baseband unit 33, up-converts the analog signal to a carrier frequency, and transmits the signal through the antenna unit 31. do. Also, the RF unit 32 may have a function of controlling transmission power. The RF section 32 is also called a transmission power control section.

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

Each of the serving cells configured for the terminal device 1 is either PCell (Primary cell, primary cell), PSCell (Primary SCG cell, primary SCG cell), and SCell (Secondary Cell, secondary cell) good too.

A PCell is a serving cell included in an MCG (Master Cell Group). The PCell is a cell (implemented cell) in which the terminal device 1 implements an initial connection establishment procedure or a connection re-establishment procedure.

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

SCell may be included in either MCG or SCG.

A serving cell group (cell group) is a name that includes at least MCG and 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.

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

Of the one or more downlink BWPs configured for the serving cell (or downlink component carrier), one downlink BWP may be configured as an active downlink BWP (or one downlink BWP may may be activated). Of the one or more uplink BWPs set for the serving cell (or uplink component carrier), one uplink BWP may be set to the active uplink BWP (or one uplink BWP may be may be activated).

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

PDSCH, PDCCH, and CSI-RS may not be received in downlink BWPs other than active downlink BWPs (inactive downlink BWPs). The terminal device 1 may not try to receive the PDSCH, PDCCH, and CSI-RS in downlink BWPs that are not active downlink BWPs. PUCCH and PUSCH may not be transmitted in an uplink BWP that is not an active uplink BWP (inactive uplink BWP). The terminal device 1 does not have to transmit PUCCH and PUSCH in an uplink BWP that is not an active uplink BWP. Inactive downlink BWP and inactive uplink BWP are collectively referred to as inactive BWP.

Downlink BWP switching (BWP switch) is a procedure for deactivating one active downlink BWP of a serving cell and activating any of the inactive downlink BWPs of the serving cell. be. Downlink BWP switching may be controlled by a BWP field included in downlink control information. Downlink BWP switching may be controlled based on higher layer parameters.

Uplink BWP switching is used to deactivate one active uplink BWP and activate any inactive uplink BWP that is not the one active uplink BWP. Uplink BWP switching may be controlled by a BWP field included in downlink control information. Uplink BWP switching may be controlled based on higher layer parameters.

Of the one or more downlink BWPs configured for the serving cell, two or more downlink BWPs may not be configured as active downlink BWPs. For a serving cell, one downlink BWP may be active at a time.

Of the one or more uplink BWPs configured for the serving cell, two or more uplink BWPs may not be configured as active uplink BWPs. For the serving cell, one uplink BWP may be active at a time.

FIG. 6 is a schematic block diagram showing a configuration example of the 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 transmitting/receiving section 10 includes at least part or all of the antenna section 11 , the RF section 12 and the baseband section 13 . The upper layer processing unit 14 includes at least part or all of the medium access control layer processing unit 15 and the radio resource control layer processing unit 16 .

The wireless transmission/reception unit 10 includes at least part or all of the wireless transmission unit 10a and the wireless reception unit 10b. Here, the device configurations of the baseband unit 13 included in the radio transmission unit 10a and the baseband unit 13 included in the radio reception unit 10b may be the same or different. Further, the device configuration of the RF unit 12 included in the wireless transmission unit 10a and the RF unit 12 included in the wireless reception unit 10b may be the same or different. Further, the device configuration of the antenna section 11 included in the radio transmission section 10a and the device configuration of the antenna section 11 included in the radio reception section 10b may be the same or different.

For example, the radio transmission unit 10a may generate and transmit a PRACH baseband signal. For example, the radio transmission unit 10a may generate and transmit a PUCCH baseband signal. The radio transmission unit 10a may generate and transmit a PUSCH baseband signal. For example, the radio transmission unit 10a may generate and transmit a PUCCH DMRS baseband signal. For example, the radio transmission unit 10a may generate and transmit a PUSCH DMRS baseband signal. For example, the radio transmission unit 10a may generate and transmit a UL PTRS baseband signal. For example, the radio transmission unit 10a may generate and transmit an SRS baseband signal.

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

The upper layer processing unit 14 outputs the uplink data (transport block) to the radio transmission/reception unit 10 (or the radio transmission unit 10a). The upper layer processing unit 14 processes the MAC layer, the packet data integration protocol layer, the radio link control layer, and the RRC layer.

The medium access control layer processing unit 15 provided in the upper layer processing unit 14 performs MAC layer processing.

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

The wireless transmission/reception unit 10 (or the wireless transmission unit 10a) performs processing such as modulation and encoding. The radio transmission/reception unit 10 (or the radio transmission unit 10a) modulates, encodes, and generates a baseband signal (converts to a time-continuous signal) of uplink data to generate a physical signal, and transmits the physical signal to the base station device 3. do. The radio transmitting/receiving unit 10 (or the radio transmitting unit 10 a ) may place the physical signal in a certain BWP (active uplink BWP) and transmit it to the base station device 3 .

The radio transmitting/receiving section 10 (or the radio receiving section 10b) performs processing such as demodulation and decoding. The radio transmitting/receiving unit 10 (or radio receiving unit 30b) may receive a physical signal in a BWP (active downlink BWP) of a serving cell. The radio transmitting/receiving unit 10 (or the radio receiving unit 10 b ) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 14 . The radio transmitting/receiving unit 10 (radio receiving unit 10b) may perform a channel access procedure prior to transmission of the physical signal.

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

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

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

The RF unit 12 uses a low-pass filter to remove excess frequency components from the analog signal input from the baseband unit 13, up-converts the analog signal to a carrier frequency, and transmits the signal through the antenna unit 11. do. Also, the RF unit 12 may have a function of controlling transmission power. The RF section 12 is also called a transmission power control section.

The physical signal (signal) will be explained below.

A physical signal is a general term for a downlink physical channel, a downlink physical signal, an uplink physical channel, and an uplink physical channel. A physical channel is a general term for a downlink physical channel and an uplink physical channel. A physical signal is a general term for a downlink physical signal and an uplink physical signal.

An uplink physical channel may correspond to a set of resource elements carrying information that occurs in a higher layer. An uplink physical channel may be a physical channel used in an uplink component carrier. An uplink physical channel may be transmitted by the terminal device 1 . An uplink physical channel may be received by the base station device 3 . In a radio communication system according to an 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)

PUCCH may be used to transmit uplink control information (UCI: Uplink Control Information). PUCCH may be transmitted to deliver, transmit, and convey uplink control information. The uplink control information may be mapped onto the PUCCH. The terminal device 1 may transmit PUCCH on which uplink control information is arranged. The base station apparatus 3 may receive PUCCH in which uplink control information is arranged.

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

　Channel state information is also called a channel state information bit or a channel state information sequence. A scheduling request is also called a scheduling request bit or a scheduling request sequence. The HARQ-ACK information is also called HARQ-ACK information bits or HARQ-ACK information sequence.

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

A transport block is a sequence of information bits delivered from the upper layer. Here, the information bit sequence is also called a bit sequence. Here, the transport block may be delivered from UL-SCH (Uplink-Shared CHannel) of the transport layer.

A HARQ-ACK for the transport block may be called a HARQ-ACK for the PDSCH. In this case, “HARQ-ACK for PDSCH” indicates HARQ-ACK for transport blocks included in PDSCH.

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

A scheduling request may be used at least to request UL-SCH resources for a new transmission. The scheduling request bit may be used to indicate either positive SR or negative SR. A scheduling request bit indicating a positive SR is also referred to as a "positive SR signaled". A positive SR may indicate that UL-SCH resources for initial transmission are requested by the terminal device 1 . A positive SR may indicate that the scheduling request is triggered by higher layers. A positive SR may be signaled when a scheduling request is indicated by higher layers. The Scheduling Request bit indicating negative SR is also referred to as "negative SR is sent". A negative SR may indicate that no UL-SCH resource is requested for the initial transmission by the terminal device 1 . A negative SR may indicate that no scheduling request is triggered by higher layers. A negative SR may be signaled when no scheduling request is indicated by higher layers.

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

The channel state information is an indicator regarding the reception state of physical signals (eg, CSI-RS) used at least for channel measurement. The value of the channel state information may be determined by the terminal device 1 based on reception conditions assumed by at least the physical signals used for channel measurements. Channel measurements may include interference measurements.

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

PUSCH may be used to convey one or both of transport blocks and uplink control information. PUSCH may be used to convey transport blocks delivered by UL-SCH and uplink control information. A transport block may be placed on the PUSCH. Transport blocks delivered on the UL-SCH may be placed on the PUSCH. Uplink control information may be placed on the PUSCH. The terminal device 1 may transmit PUSCH in which one or both of transport blocks and uplink control information are arranged. The base station apparatus 3 may receive PUSCH in which one or both of transport blocks and uplink control information are arranged.

A PRACH may be sent to carry a random access preamble. The terminal device 1 may transmit the PRACH. The base station device 3 may receive the PRACH. The PRACH sequence x _u,v (n) is defined by x _u,v (n)=x _u (mod (n+C _v , L _RA )). Here, x _u is a ZC (Zadoff Chu) sequence. Also, x _u may be defined by x _u =exp(−jπui(i+1)/L _RA ). j is the imaginary unit. Also, π is the circular constant. Also, C _v corresponds to the cyclic shift of the PRACH sequence. Also, L _RA corresponds to the length of the PRACH sequence. Also, the L _RA is 839 or 139. Also, i is an integer ranging from 0 to L _RA −1. Also, u is the sequence index for the PRACH sequence.

64 random access preambles are defined for each PRACH opportunity. A random access preamble is identified based on the cyclic shift C _v of the PRACH sequence and the sequence index u for the PRACH sequence. Each of the 64 identified random access preambles may be indexed.

An uplink physical signal may correspond to a set of resource elements. Uplink physical signals may not be used to convey information originating in higher layers. Note that the uplink physical signal may be used to convey information generated in the physical layer. The uplink physical signal may be a physical signal used in an uplink component carrier. The terminal device 1 may transmit an uplink physical signal. The base station device 3 may receive an uplink physical signal. In the radio 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)

UL DMRS is a generic term for DMRS for PUSCH and DMRS for PUCCH.

A set of antenna ports for DMRS for PUSCH (DMRS related to PUSCH, DMRS included in PUSCH, DMRS corresponding to PUSCH) may be given based on the set of antenna ports for the PUSCH. For example, the set of DMRS antenna ports for the PUSCH may be the same as the set of antenna ports for the PUSCH.

Transmission of PUSCH and transmission of DMRS for the PUSCH may be indicated (or scheduled) by one DCI format. A PUSCH and a DMRS for the PUSCH may be collectively referred to as a PUSCH. Transmitting the PUSCH may be transmitting the PUSCH and DMRS for the PUSCH.

The PUSCH propagation path may be estimated from the DMRS for the PUSCH.

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.

Transmission of PUCCH and transmission of DMRS for the PUCCH may be indicated (or triggered) by one DCI format. One or both of the PUCCH to resource element mapping and the DMRS to resource element mapping for the PUCCH may be provided by one PUCCH format. A PUCCH and a DMRS for the PUCCH may be collectively referred to as a PUCCH. Transmitting the PUCCH may be transmitting the PUCCH and the DMRS for the PUCCH.

The PUCCH propagation path may be estimated from the DMRS for the PUCCH.

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

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

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

A radio frame bit is used to indicate a radio frame in which PBCH is transmitted (a radio frame including a slot in which PBCH is transmitted). A radio frame bit includes 4 bits. A radio frame bit may consist of 4 bits of a 10-bit radio frame indicator. For example, the radio frame indicator may at least be used to identify radio frames from index 0 to index 1023 .

The half radio frame bit is used to indicate whether the PBCH is transmitted in the first five subframes or the last five subframes of the radio frame in which the PBCH is transmitted. Here, the half radio frame may be configured including 5 subframes. Also, the half radio frame may be composed of the first five subframes of the ten subframes included in the radio frame. Also, the half radio frame may be composed of the last five subframes of the ten subframes included in the radio frame.

The SS/PBCH block index bit is used to indicate the SS/PBCH block index. The SS/PBCH block index bits contain 3 bits. The SS/PBCH block index bits may consist of 3 bits of the 6-bit SS/PBCH block index indicator. The SS/PBCH block index indicator may be used at least to identify the SS/PBCH blocks from index 0 to index 63.

　The subcarrier offset bit is used to indicate the subcarrier offset. A subcarrier offset may be used to indicate the difference between the top subcarrier to which the PBCH is mapped and the top subcarrier to which the control resource set with index 0 is mapped.

The PDCCH may be transmitted to convey downlink control information (DCI). Downlink control information may be placed in the PDCCH. The terminal device 1 may receive the PDCCH in which the downlink control information is arranged. The base station apparatus 3 may transmit PDCCH in which downlink control information is arranged.

The downlink control information may be transmitted with the DCI format. Note that the DCI format may be interpreted as a format of downlink control information. A DCI format may also be interpreted as a set of downlink control information set to a certain downlink control information format.

DCI format 0_0, DCI format 0_1, DCI format 1_0, and DCI format 1_1 are DCI formats. The uplink DCI format is a general term for DCI format 0_0 and DCI format 0_1. A downlink DCI format is a general term for DCI format 1_0 and DCI format 1_1.

DCI format 0_0 is used at least for scheduling of PUSCH allocated in a certain cell. DCI format 0_0 includes at least some or all of the fields 1A to 1E.
1A) Identifier field for DCI formats
1B) Frequency domain resource assignment field
1C) Time domain resource assignment field
1D) Frequency hopping flag field
1E) MCS field (MCS field: Modulation and Coding Scheme field)

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

The frequency domain resource allocation field included in DCI format 0_0 may be used to indicate frequency resource allocation for PUSCH.

The time domain resource allocation field included in DCI format 0_0 may be used to indicate time resource allocation for PUSCH.

A frequency hopping flag field may be used to indicate whether frequency hopping is applied to the PUSCH.

The MCS field included in DCI format 0_0 may be used at least to indicate one or both of the modulation scheme for PUSCH and the target coding rate. The target code rate may be the target code rate for transport blocks placed on PUSCH. The transport block size (TBS: Transport Block Size) allocated to the PUSCH may be determined based on one or both of the target coding rate and the modulation scheme for the PUSCH.

DCI format 0_0 may not include fields used for CSI requests (CSI requests).

DCI format 0_0 may not include a carrier indicator field. That is, the serving cell to which the uplink component carrier on which the PUSCH scheduled by DCI format 0_0 is allocated may be the same as the serving cell of the uplink component carrier on which the PDCCH including DCI format 0_0 is allocated. Based on detecting DCI format 0_0 in a certain downlink component carrier of a certain serving cell, the terminal device 1 recognizes that the PUSCH scheduled according to the DCI format 0_0 is mapped to the uplink component carrier of the certain serving cell. good too.

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

DCI format 0_1 is used at least for scheduling of PUSCH allocated in a certain cell. DCI format 0_1 includes at least some or all of the fields 2A to 2H.
2A) DCI format identification field 2B) Frequency domain resource allocation field 2C) Uplink time domain resource allocation field 2D) Frequency hopping flag field 2E) MCS field 2F) CSI request field
2G) BWP field
2H) Carrier indicator field

The DCI format specific field included in DCI format 0_1 may indicate 0.

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

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

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

The BWP field of DCI format 0_1 may be used to indicate the uplink BWP in which the PUSCH scheduled by this DCI format 0_1 is arranged. That is, DCI format 0_1 may be accompanied by a change of active uplink BWP. The terminal device 1 may recognize the uplink BWP in which the PUSCH is allocated based on detecting the DCI format 0_1 used for PUSCH scheduling.

A DCI format 0_1 that does not include a BWP field may be a DCI format that schedules PUSCH without changing the active uplink BWP. The terminal device 1 transmits the PUSCH without switching the active uplink BWP based on detecting DCI format D0_1 which is DCI format 0_1 used for scheduling of PUSCH and which does not include a BWP field. can recognize that.

Although the BWP field is included in DCI format 0_1, the BWP field may be ignored by the terminal device 1 if the terminal device 1 does not support the function of switching BWP by DCI format 0_1. That is, the terminal device 1 that does not support the BWP switching function switches the active uplink BWP based on detecting the DCI format 0_1 used for PUSCH scheduling and the DCI format 0_1 including the BWP field. It may be recognized that the PUSCH is transmitted without performing Here, when the terminal device 1 supports the BWP switching function, it may be reported that "the terminal device 1 supports the BWP switching function" in the function information reporting procedure of the RRC layer.

The CSI request field is used to indicate CSI reporting.

When DCI format 0_1 includes a carrier indicator field, the carrier indicator field may be used to indicate the uplink component carrier on which PUSCH is arranged. When DCI format 0_1 does not include a carrier indicator field, the uplink component carrier on which PUSCH is mapped is the same as the uplink component carrier on which PDCCH including DCI format 0_1 used for scheduling the PUSCH is mapped. good too. When the number of uplink component carriers configured in the terminal device 1 in a certain serving cell group is 2 or more (when uplink carrier aggregation is operated in a certain serving cell group), PUSCH arranged in the certain serving cell group. The number of bits of the carrier indicator field included in DCI format 0_1 used for scheduling may be 1 bit or more (eg, 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), scheduling of PUSCH arranged in the certain serving cell group The number of bits of the carrier indicator field included in the used DCI format 0_1 may be 0 bits (or the carrier indicator field is included in the DCI format 0_1 used for scheduling of the PUSCH arranged in the serving cell group. may be omitted).

DCI format 1_0 is used at least for scheduling of PDSCH allocated in a certain cell. DCI format 1_0 includes at least part or all of 3A to 3F.
3A) DCI format specific field 3B) Frequency domain resource allocation field 3C) Time domain resource allocation field 3D) MCS field 3E) PDSCH_HARQ feedback timing indicator field
3F) PUCCH resource indicator field

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

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

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

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

The PDSCH_HARQ feedback timing indication field may be used to indicate the offset from the slot containing the last OFDM symbol of PDSCH to the slot containing the first OFDM symbol of PUCCH.

The PUCCH resource indication field may be a field that indicates the index of one or more PUCCH resources included in the PUCCH resource set. A PUCCH resource set may include one or more PUCCH resources.

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

　DCI format 1_0 may not include the BWP field. Here, the DCI format 1_0 may be a DCI format that schedules the PDSCH without changing the active downlink BWP. The terminal device 1 may recognize to receive the PDSCH without switching the active downlink BWP based on detecting the DCI format 1_0 used for PDSCH scheduling.

DCI format 1_1 is used at least for scheduling of PDSCH allocated to a certain cell. DCI format 1_1 includes at least part or all of 4A to 4I.
4A) DCI format specific field 4B) Frequency domain resource allocation field 4C) Time domain resource allocation field 4E) MCS field 4F) PDSCH_HARQ feedback timing indication field 4G) PUCCH resource indication field 4H) BWP field 4I) Carrier indicator field

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

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

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

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

When the PDSCH_HARQ feedback timing indication field is included in DCI format 1_1, the PDSCH_HARQ feedback timing indication field indicates the offset from the slot including the last OFDM symbol of PDSCH to the slot including the first OFDM symbol of PUCCH. may be used at least for If the PDSCH_HARQ feedback timing indication field is not included in DCI format 1_1, the offset from the slot that includes the last OFDM symbol of PDSCH to the slot that includes the first OFDM symbol of PUCCH may be specified by higher layer parameters. good.

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

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

A DCI format 1_1 that does not include a BWP field may be a DCI format that schedules the PDSCH without changing the active downlink BWP. The terminal device 1 receives the PDSCH without switching the active downlink BWP based on detecting the DCI format 1_1 that is used for PDSCH scheduling and does not include the BWP field. can recognize that.

Although the DCI format 1_1 includes a BWP field, the BWP field may be ignored by the terminal device 1 if the terminal device 1 does not support the function of switching the BWP according to the DCI format 1_1. That is, the terminal device 1 that does not support the BWP switching function switches the active downlink BWP based on detecting the DCI format 1_1 used for PDSCH scheduling and the DCI format 1_1 including the BWP field. It may be recognized that the PDSCH is received without performing the Here, when the terminal device 1 supports the BWP switching function, it may be reported that "the terminal device 1 supports the BWP switching function" in the function information reporting procedure of the RRC layer.

When the DCI format 1_1 includes a carrier indicator field, the carrier indicator field may be used to indicate the downlink component carrier on which the PDSCH is arranged. When DCI format 1_1 does not include a carrier indicator field, the downlink component carrier on which PDSCH is arranged is the same as the downlink component carrier on which PDCCH including DCI format 1_1 used for scheduling of the PDSCH is arranged. good too. When the number of downlink component carriers configured in the terminal device 1 in a certain serving cell group is 2 or more (when downlink carrier aggregation is operated in a certain serving cell group), PDSCH arranged in the certain serving cell group. The number of bits of the carrier indicator field included in the DCI format 1_1 used for scheduling may be 1 bit or more (eg, 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), scheduling of the PDSCH arranged in the certain serving cell group The number of bits of the carrier indicator field included in the used DCI format 1_1 may be 0 bits (or the carrier indicator field is included in the DCI format 1_1 used for scheduling the PDSCH allocated to the serving cell group. may be omitted).

The PDSCH may be sent to convey transport blocks. PDSCH may be used to transmit transport blocks delivered over DL-SCH. PDSCH may be used to convey transport blocks. Transport blocks may be placed on the PDSCH. A transport block corresponding to the DL-SCH may be placed in the PDSCH. The base station device 3 may transmit the PDSCH. The terminal device 1 may receive the PDSCH.

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

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

FIG. 7 is a diagram illustrating a configuration example of an SS/PBCH block according to one aspect of the present embodiment. In FIG. 7, the horizontal axis is the time axis (OFDM symbol index l _sym ), and the vertical axis is the frequency domain. In addition, blocks with diagonal lines slanting to the right indicate a set of resource elements for the PSS. In addition, black solid blocks indicate a set of resource elements for SSS. In addition, the left-sloping block indicates a set of resource elements for the PBCH and the DMRS for the PBCH (DMRS associated with the PBCH, DMRS included in the PBCH, and DMRS corresponding to the PBCH).

As shown in FIG. 7, the SS/PBCH block includes PSS, SSS, and PBCH. Also, the SS/PBCH block includes four consecutive OFDM symbols. The SS/PBCH block contains 240 subcarriers. The PSS is arranged on the 57th to 183rd subcarriers in the 1st OFDM symbol. The SSS is located on the 57th to 183rd subcarriers in the 3rd OFDM symbol. The 1st to 56th subcarriers of the 1st OFDM symbol may be set to zero. The 184th to 240th subcarriers of the 1st OFDM symbol may be set to zero. The 49th to 56th subcarriers of the 3rd OFDM symbol may be set to zero. The 184th to 192nd subcarriers of the 3rd OFDM symbol may be set to zero. The PBCH is arranged on subcarriers that are the 1st to 240th subcarriers of the second OFDM symbol and on which no DMRS for the PBCH is arranged. The PBCH is arranged on subcarriers that are the 1st to 48th subcarriers of the 3rd OFDM symbol and on which no DMRS for the PBCH is arranged. The PBCH is arranged in the 193rd to 240th subcarriers of the 3rd OFDM symbol and in subcarriers where no DMRS for the PBCH is arranged. The PBCH is arranged in subcarriers that are the 1st to 240th subcarriers of the 4th OFDM symbol and in which the DMRS for the PBCH is not arranged.

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

A PBCH to which symbols of a PBCH in a certain antenna port are transmitted is a DMRS for the PBCH that is mapped to the slot to which the PBCH is mapped, and is included in the SS/PBCH block that includes the PBCH. of DMRS.

DL DMRS is a generic term for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.

A set of antenna ports for DMRS for PDSCH (DMRS associated with PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) may be provided based on the set of antenna ports for the PDSCH. That is, the set of DMRS antenna ports for the PDSCH may be the same as the set of antenna ports for the PDSCH.

A PDSCH transmission and a DMRS transmission for the PDSCH may be indicated (or scheduled) by one DCI format. A PDSCH and a DMRS for the PDSCH may be collectively referred to as a PDSCH. Transmitting the PDSCH may be transmitting the PDSCH and the DMRS for the PDSCH.

The PDSCH propagation path may be estimated from the DMRS for the PDSCH. If a set of resource elements in which a certain PDSCH symbol is transmitted and a set of resource elements in which a DMRS symbol for the certain PDSCH is transmitted are included in the same Precoding Resource Group (PRG) In that case, the PDSCH on which the PDSCH symbols on a given antenna port are conveyed may be estimated by the DMRS for the PDSCH.

Antenna ports for DMRS for PDCCH (DMRS related to PDCCH, DMRS included in PDCCH, DMRS corresponding to PDCCH) may be the same as antenna ports for PDCCH.

A PDCCH may be estimated from the DMRS for the PDCCH. That is, the PDCCH propagation path may be estimated from the DMRS for the PDCCH. If the same precoder is applied (assumed to be applied, applicable), the PDCCH on which the symbols for that PDCCH at a given antenna port are conveyed may be estimated by the DMRS for that PDCCH.

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).

The transport layer BCH is mapped to the physical layer PBCH. That is, transport blocks passing through the transport layer BCH are delivered to the physical layer PBCH. Also, the transport layer UL-SCH is mapped to the physical layer PUSCH. That is, transport blocks passing through the UL-SCH of the transport layer are delivered to the PUSCH of the physical layer. Also, the transport layer DL-SCH is mapped to the physical layer PDSCH. That is, transport blocks passing through the transport layer DL-SCH are delivered to the physical layer PDSCH.

One UL-SCH and one DL-SCH may be provided for each serving cell. A BCH may be provided to the PCell. BCH may not be given to PSCell, SCell.

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

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

　Logical channel BCCH is mapped to transport layer BCH or DL-SCH. For example, a transport block containing MIB information is delivered to the transport layer BCH. Also, transport blocks containing system information other than the MIB are delivered to the DL-SCH of the transport layer. Also, CCCH is mapped to DL-SCH or UL-SCH. That is, transport blocks mapped to CCCH are delivered to DL-SCH or UL-SCH. Also, DCCH is mapped to DL-SCH or UL-SCH. That is, transport blocks mapped to DCCH are delivered to DL-SCH or UL-SCH.

An RRC message contains one or more parameters managed in the RRC layer. Here, the parameters managed in the RRC layer are also called RRC parameters. For example, the RRC message may contain the MIB. The RRC message may also contain system information. Also, the RRC message may include a message corresponding to CCCH. Also, the RRC message may include a message corresponding to the DCCH. RRC messages containing messages corresponding to DCCH are also referred to as dedicated RRC messages.

Upper layer parameters (upper layer parameters) are RRC parameters or parameters included in MAC CE (Medium Access Control Control Element). In other words, the upper layer parameters are a general term for parameters included in MIB, system information, messages corresponding to CCCH, messages corresponding to DCCH, and MAC CE. Parameters included in MAC CE are sent by MAC CE (Control Element) commands.

The procedure performed by the terminal device 1 includes at least some or all of 5A to 5C below.
5A) Cell search
5B) random access
5C) data communication

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

The PSS sequence is given based at least on the physical cell ID. A sequence of SSSs is provided based at least on the physical cell ID.

An SS/PBCH block candidate indicates a resource on which transmission of an SS/PBCH block is permitted (possible, reserved, configured, specified, possible).

A set of SS/PBCH block candidates in a half radio frame is also called an SS burst set. An SS burst set is also called a transmission window, an SS transmission window, or a DRS transmission window (Discovery Reference Signal transmission window). The SS burst set is a generic term including at least the first SS burst set and the second SS burst set.

The base station device 3 transmits SS/PBCH blocks of one or more indices at a predetermined cycle. The terminal device 1 may detect at least one of the SS/PBCH blocks of the one or more indices and attempt to decode the PBCH included in the SS/PBCH blocks.

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

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

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

Message 2 is a procedure for trying to detect DCI format 1_0 with CRC (Cyclic Redundancy Check) scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) by terminal device 1. The terminal device 1 includes the DCI format in the control resource set provided based on the MIB included in the PBCH included in the SS/PBCH block detected based on the cell search and the resource indicated based on the configuration of the search area set. Try to detect PDCCH. Message 2 is also called a random access response.

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 indicated by MAC CE included in the PDSCH scheduled by the DCI format 1_0.

The PUSCH scheduled based on the random access response grant is either message 3 PUSCH or PUSCH. Message 3 PUSCH includes a contention resolution identifier MAC CE. Collision resolution ID MAC CE includes a collision resolution ID.

Message 3 PUSCH retransmission is scheduled by DCI format 0_0 with CRC scrambled based on TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).

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

"Data communication" is a general term for downlink communication and uplink communication.

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

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

The set of resource blocks that make up the control resource set may be indicated by higher layer parameters. The number of OFDM symbols that make up the control resource set may be indicated by a higher layer parameter.

The terminal device 1 attempts to detect the PDCCH in the search area set. Here, trying to detect a PDCCH in the search area set may be trying to detect a PDCCH candidate in the search area set, or may be trying to detect a DCI format in the search area set. Then, it may be trying to detect PDCCH in the control resource set, may be trying to detect PDCCH candidates in the control resource set, or may be trying to detect the DCI format in the control resource set. There may be.

A search area set is defined as a set of PDCCH candidates. The search area set may be a CSS (Common Search Space) set or a USS (UE-specific Search Space) set. The terminal device 1 uses a type 0 PDCCH common search space set, a type 0a PDCCH common search space set, a type 1 PDCCH common search space set, One of Type2 PDCCH common search space set, Type3 PDCCH common search space set and/or UE-specific PDCCH search space set Attempt to detect PDCCH candidates in part or all.

A type 0 PDCCH common search region set may be used as the index 0 common search region set. The type 0 PDCCH common search region set may be the index 0 common search region set.

A CSS set is a generic term for a type 0 PDCCH common search area set, a type 0a PDCCH common search area set, a type 1 PDCCH common search area set, a type 2 PDCCH common search area set, and a type 3 PDCCH common search area set. A USS set is also referred to as a UE-specific PDCCH search area set.

A certain search area set is associated with (included in, corresponds to) a certain control resource set. The index of the control resource set associated with the search area set may be indicated by a higher layer parameter.

For a given search area set, some or all of 6A through 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

A monitoring occurrence of a certain search area set may correspond to the OFDM symbol in which the leading OFDM symbol of the control resource set associated with the certain search area set is located. A monitoring opportunity for a given search area set may correspond to resources of the control resource set starting from the first OFDM symbol of the control resource set associated with the given search area set. The search area set monitoring opportunities are provided based on at least some or all of a PDCCH monitoring interval, a PDCCH monitoring pattern within a slot, and a PDCCH monitoring offset.

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

In FIG. 8, the solid white blocks in primary cell 301 represent search area set 91, the solid black blocks in primary cell 301 represent search area set 92, the blocks in secondary cell 302 represent search area set 93, and the secondary The blocks in cell 303 represent search area set 94 .

The monitoring interval of the search area set 91 is set to 1 slot, the monitoring offset of the search area set 91 is set to 0 slots, and the monitoring pattern of the search area set 91 is [1,0,0,0,0,0, 0,1,0,0,0,0,0,0]. That is, 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 of the slots.

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

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]. That is, the monitoring opportunity for search area set 93 corresponds to the eighth OFDM symbol (OFDM symbol #7) in each of the even slots.

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 [1,0,0,0,0,0, 0,0,0,0,0,0,0,0]. That is, the monitoring opportunity for search area set 94 corresponds to the first OFDM symbol (OFDM symbol #0) in each of the odd slots.

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

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

Type 1 PDCCH common search area set includes CRC sequences scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) and/or CRC sequences scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier). It may at least be used for the DCI format that accompanies it.

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

A type 3 PDCCH common search area set may be used for DCI formats with CRC sequences scrambled by C-RNTI (Cell-Radio Network Temporary Identifier).

A UE-specific PDCCH search area set may be used at least for DCI formats with CRC sequences scrambled by C-RNTI.

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

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.

In the configured scheduling (configured grant), the uplink grant for scheduling the PUSCH is configured for each PUSCH transmission cycle. Part or all of the information indicated by the uplink DCI format when the PUSCH is scheduled by the uplink DCI format may be indicated by the uplink grant that is configured in the case of scheduling that is configured.

The terminal device 1 may be provided with one or more PUCCH resources by higher layers. The terminal device 1 may be assigned one or more PUCCH resources for one PUCCH transmission. PUCCH resources may be determined based at least on some or all of elements P1 through P5. That is, some or all of elements P1 to P5 may be configured for PUCCH resources. Also, some or all of the elements P1 to P5 may be configured for each PUCCH resource. For example, the nth set may be configured for the nth PUCCH resource. The nth set may be some or all of the elements P1 to P5. The n may be an integer of 1 or more. The setting of a higher layer parameter for a PUCCH resource may be that the certain higher layer parameter configures the PUCCH resource, or that the certain higher layer parameter characterizes the PUCCH resource. The PUCCH resource may be configured by a higher layer parameter PUCCH-Resource, a higher layer parameter PUCCH-ResourceExt-r16, a higher layer parameter PUCCH-ResourceExt-r17, and some or all of the higher layer parameter PUCCH-ResourceExt. P1) Index of PUCCH format P2) Index of first OFDM symbol of PUCCH P3) Number of OFDM symbols of PUCCH P4) Index of first resource block of PUCCH P5) Number of resource blocks of PUCCH M ^PUCCH _RB

The PUCCH resource may be indicated based at least on the PUCCH resource indication field in the DCI format that indicates certain PUCCH transmissions. The certain PUCCH transmission may correspond to the PUCCH resource. Also, indicating a PUCCH resource by a PUCCH resource indication field in a DCI format may mean that the DCI format indicates PUCCH transmission corresponding to the PUCCH resource. A PUCCH transmission corresponding to a PUCCH resource may be provided with at least the necessary resources for the certain PUCCH transmission. For example, the resource may be time. Also, the resource may be a frequency or a frequency band.

Setting one higher layer parameter for a PUCCH resource may mean that the one higher layer parameter is set for PUCCH-Resource. Also, setting one higher layer parameter for the PUCCH resource may be setting the one higher layer parameter to PUCCH-ResourceExt-r16. Also, setting one higher layer parameter for the PUCCH resource may be setting the one higher layer parameter to PUCCH-ResourceExt-r17. Configuring one higher layer parameter for a PUCCH resource may mean that the one higher layer parameter is configured for each PUCCH resource.

The terminal device 1 may be configured with one PUCCH resource set by the upper layer parameter pucch-ResourceCommon. The one PUCCH resource set may include 16 PUCCH resources.

For the terminal device 1, up to four PUCCH resource sets may be configured by the upper layer parameter pucch-ResourceSet. Each PUCCH resource set may include one or more PUCCH resources. Each PUCCH resource set may be associated with a PUCCH resource set index. The PUCCH resource set index may be given by the higher layer parameter pucch-ResourceSetId. Each PUCCH resource set may be associated with a maximum of UCI information bits. The maximum UCI information bits may be set for each PUCCH resource set by a higher layer parameter maxPayloadSize. When the terminal device 1 transmits UCI using PUCCH resources in a certain PUCCH resource set, the information bits of the UCI do not have to exceed the maximum UCI information bits configured in the certain PUCCH resource set.

The PUCCH format index may indicate any value from PUCCH format 0 to PUCCH format 4. The PUCCH format index may be indicated by the higher layer parameter format. For example, if format is format0 (or PUCCH-format0), PUCCH may support PUCCH format 0. If format is format1 (or PUCCH-format1), PUCCH may support PUCCH format 1. If format is format2 (or PUCCH-format2), PUCCH may support PUCCH format2. If format is format3 (or PUCCH-format3), PUCCH may correspond to PUCCH format3. If format is format4 (or PUCCH-format4), PUCCH may correspond to PUCCH format4.

For example, a certain PUCCH corresponding to a certain PUCCH format may be configured by the certain PUCCH format. Also, a certain PUCCH corresponding to a certain PUCCH format may be that the certain PUCCH is generated based on the certain PUCCH format. Here, the PUCCH format includes at least some or all of the PUCCH scrambling method, PUCCH modulation scheme setting, PUCCH time domain resource setting, PUCCH frequency domain setting, and PUCCH DMRS setting. It's okay. The setting of certain higher layer parameters for the PUCCH format may be that the certain higher layer parameters configure the PUCCH format, or that the certain higher layer parameters characterize the PUCCH format. Further, setting a certain higher layer parameter for each PUCCH format may mean setting an nth certain higher layer parameter for the nth PUCCH format. The n may be an integer of 1 or more.

The index of the first OFDM symbol of PUCCH may be the index of the first OFDM symbol to which PUCCH is mapped. The index of the OFDM symbol at the beginning of PUCCH may be determined by the higher layer parameter startingSymbolIndex corresponding to the PUCCH format selected by the PUCCH format index.

The number of OFDM symbols for PUCCH may be the number of OFDM symbols to which PUCCH is mapped. The number of OFDM symbols for PUCCH may be determined by the higher layer parameter nrofsymbols corresponding to the PUCCH format selected by the PUCCH format index.

The number of PUCCH resource blocks, M ^PUCCH _RB , may be the maximum number of resource blocks to which PUCCH is mapped. The number M ^PUCCH _RBs of PUCCH resource blocks may be determined by a higher layer parameter nrolfPRBs corresponding to the PUCCH format selected by the PUCCH format index.

The number of PUCCH resource blocks M ^PUCCH _RB,min may be the number of resource blocks to which the PUCCH is mapped. The number of PUCCH resource blocks, M ^PUCCH _RB,min , may be the same as the number of PUCCH resource blocks, M ^PUCCH _RB , or may be less than the number of PUCCH resource blocks, M ^PUCCH _RB .

The number of resource blocks for PUCCH, M ^PUCCH _RB,min , is given by the formula 1 and/or at least based on Equation 2. The number of PUCCH resource blocks M ^PUCCH _RB,min may be determined based at least on the fact that the number of PUCCH resource blocks M ^PUCCH _RB is greater than one and based on both Equation 1 and Equation 2. Also, the number of PUCCH PRBs may be M ^PUCCH _RB,min , and the position of the PRB where the PUCCH starts may be determined based on at least the higher layer parameter StartingPRB or the higher layer parameter SecondHopPRB. A PRB indicated by the higher layer parameter StartingPRB may be referred to as a first PRB, and a PRB indicated by the higher layer parameter SecondHopPRB may be referred to as a second PRB.

_NUCI may correspond to the number of uplink control information bits.

N ^RB _SC,ctrl may be determined based on the number N ^RB _SC of subcarriers per resource block. N ^RB _{SC, ctrl} for PUCCH format 2 may be given by N ^RB _{SC, ctrl} −4 or (N ^RB _{SC, ctrl} −4)/N ^PUCCH,2 _SF . N ^RB _SC,ctrl for PUCCH format 3 may be given by N ^RB SC _,ctrl or N ^RB _SC,ctrl /N ^PUCCH,3 _SF . N ^PUCCH,2 _SF may be a value used for spreading in PUCCH2, and N ^PUCCH,3 _SF may be a value used for block-wise spreading in PUCCH3.

N ^PUCCH _symb-UCI may correspond to the number of OFDM symbols to which PUCCH is mapped. The N ^PUCCH _symb-UCI for PUCCH format 2 may be given by nrofSymbols in the higher layer parameter PUCCH-fromat2. N ^PUCCH _symb-UCI for PUCCH format 3 is the value given by nrofSymbols in the higher layer parameter PUCCH-format3 minus the number of OFDM symbols used in DMRS transmission for that PUCCH format 3, good too. N ^PUCCH _symb-UCI for PUCCH format 4 is the value given by nrofSymbols in the higher layer parameter PUCCH-format4 minus the number of OFDM symbols used in DMRS transmission for the PUCCH format 4, good too.

Q _m may correspond to the modulation order of PUCCH.

r may correspond to the maximum coding rate (or simply called coding rate) of PUCCH. r may be determined by the higher layer parameter maxCodeRate for PUCCH formats 2, 3, or 4. Also, maxCodeRate may be set for each PUCCH format.

In PUCCH formats 1, 3, or 4, the number of slots N ^repeat _PUCCH may be configured for repetition of PUCCH transmission. Also, in

PUCCH format

0 or 2, the number of slots N ^repeat _PUCCH may be configured for repetition of PUCCH transmission. N ^repeat _PUCCH may be determined by a higher layer parameter NrofSlots for the PUCCH format. That is, NrofSlots may be a higher layer parameter indicating the number of repetitions for the PUCCH format corresponding to PUCCH transmission. Also, NrofSlots may be set for each PUCCH format. The value of NrofSlots can be 2, 4, or 8. For example, if the value of NrofSlots is 2, N ^repeat _PUCCH may be 2. N ^repeat _PUCCH may be 1 if NrofSlots is not configured for the PUCCH format.

In the PUCCH resource, the number of slots N ^repeat _PUCCH may be configured for repetition of PUCCH transmission. N ^repeat _PUCCH may be determined by the first higher layer parameter for PUCCH resources. The first higher layer parameter may be called RepetitionFactor-r17 or Nrofslots-r17. The first higher layer parameter may be a higher layer parameter indicating a repetition count for PUCCH resources corresponding to PUCCH transmission. Also, the first higher layer parameter may be configured for each PUCCH resource. The PUCCH resource may be configured by a higher layer parameter PUCCH-Resource, a higher layer parameter PUCCH-ResourceExt-r16, a higher layer parameter PUCCH-ResourceExt-r17, and some or all of the higher layer parameter PUCCH-ResourceExt.

Based at least on the fact that N ^repeat _PUCCH is greater than 1, terminal device 1 may repeat PUCCH transmission including UCI in N ^repeat _PUCCH slots. That is, the terminal device 1 may repeat PUCCH in N ^repeat _PUCCH slots. Also, repetitions of PUCCH may be sent in N ^repeat _PUCCH slots. The PUCCH transmissions in each of the N ^repeat _PUCCH slots may have the same number of OFDM symbols and may have the same leading OFDM symbol index. Also, PUCCH transmissions in each of the N ^repeat _PUCCH slots may correspond to the same PUCCH resource. The number of OFDM symbols may be given by the higher layer parameter nrofSymbols corresponding to the PUCCH format selected by the PUCCH format index. The index of the starting OFDM symbol may be given by a higher layer parameter startingSymbolIndex corresponding to the PUCCH format selected in PUCCH format index. The N ^repeat _PUCCH slots may or may not be consecutive. The N ^repeat _PUCCH slots may or may not be consecutive. The N ^repeat _PUCCH slots may be referred to as N ^repeat _PUCCH slots and may be referred to as available slots.

It may be configured to perform frequency hopping between different slots based at least on repeated PUCCH transmissions in N ^repeat _PUCCH slots. That is, performing frequency hopping may be configured by a higher layer parameter InterSlotFrequencyHopping in the PUCCH format. The frequency hopping may be performed slot by slot, and the PUCCH may be 1 slot, ie the hopping interval for the frequency hopping. Also, even-numbered PUCCH repetitions may start from the first PRB, and odd-numbered PUCCH repetitions may start from the second PRB. The first PRB may be given by a higher layer parameter StartingPRB and the second PRB may be given by a higher layer parameter SecondHopPRB. With the slot designated for the first transmission of the PUCCH as 0th, each subsequent slot until the PUCCH is transmitted in N ^repeat _PUCCH slots is related to whether or not the terminal device 1 transmits the PUCCH may be counted without

For example, if N ^repeat _PUCCH is 4, PUCCH may start from the first PRB in the first of N ^repeat _PUCCH slots, and PUCCH may start from the second PRB in the second of N ^repeat _PUCCH slots. Well, PUCCH may start from the first PRB in the third of N ^repeat _PUCCH slots, and PUCCH may start from the second PRB in the fourth of N ^repeat _PUCCH slots.

For example, if the N ^repeat _PUCCH is 4, the PUCCH may be arranged at least in the first PRB in the first of the N ^repeat _PUCCH slots, and the PUCCH in the second of the N ^repeat _PUCCH slots may be arranged at least in the second PRB. In the third of N ^repeat _PUCCH slots PUCCH may be arranged at least in the first PRB, and in the fourth of N ^repeat _PUCCH slots PUCCH may be arranged at least in the second PRB. Also, the first of the N ^repeat _PUCCH slots _may be associated with the first PRB, the second of the N ^repeat _PUCCH slots ^may be associated with the second PRB, and the The third may be associated with the first PRB and the fourth of the N ^repeat _PUCCH slots may be associated with the second PRB.

The terminal device 1 is configured to repeat PUCCH transmission including UCI in N ^repeat _PUCCH slots, and perform frequency hopping between different slots for PUCCH transmission. It may not be expected that frequency hopping is performed for PUCCH transmissions.

Repeating PUCCH transmission including UCI in N ^repeat _PUCCH slots, performing frequency hopping between different slots for PUCCH transmission is not configured, and performing frequency hopping within a slot for PUCCH transmission Based at least on what is configured to run, the frequency hopping from the first PRB given by the higher layer parameter StartingPRB to the second PRB given by the higher layer parameter SecondHopPRB may be the same in each slot . Configuring to perform frequency hopping within the slot may be configuring a higher layer parameter IntraSlotFrequencyHopping for a PUCCH resource for PUCCH transmission.

The terminal device 1 may determine N ^repeat _PUCCH slots for PUCCH transmission starting from the first slot in Time Division Duplex (TDD or Unpaired Spectrum). The first slot may be the slot indicated for reporting HARQ-ACK. The slot indicated for reporting the HARQ-ACK may be the slot indicated by the PDSCH_HARQ Feedback Timing Indicator field. The first slot may be the slot determined to transmit the scheduling request. The first slot may be the slot determined to report CSI.

N ^repeat _PUCCH slots may have one OFDM symbol. For example, the N ^repeat _PUCCH slots may include the one OFDM symbol. The one OFDM symbol may correspond to the OFDM symbol index given by startingSymbolIndex. For example, the one OFDM symbol may be provided by startingSymbolIndex. The one OFDM symbol may be a UL symbol or a flexible symbol. The one OFDM symbol may not be the symbol indicated for receiving the SS/PBCH block. The N ^repeat _PUCCH slots may have consecutive OFDM symbols. For example, the N ^repeat _PUCCH slots may include the consecutive OFDM symbols. The number of consecutive OFDM symbols may be the same as the number of OFDM symbols given by nrofSymbols. Also, the number of consecutive OFDM symbols may be greater than the number of OFDM symbols given by nrofSymbols. The consecutive OFDM symbols may start from the one OFDM symbol. The consecutive OFDM symbols may include one or more UL symbols or one or more flexible symbols. Also, the consecutive OFDM symbols may include one or more UL symbols and one or more flexible symbols. The consecutive OFDM symbols may not be the symbols indicated for receiving the SS/PBCH block.

The N ^repeat _PUCCH slots may include UL slots. The UL slot may be a slot composed of UL symbols. The N ^repeat _PUCCH slots may include special slots. The special slot may be a slot composed of UL symbols, flexible symbols and DL symbols. The N ^repeat _PUCCH slots may not include DL slots. The DL slot may be a slot composed of DL symbols. The N ^repeat _PUCCH slots may not include special slots associated with SS/PBCH blocks.

A UL symbol may be an OFDM symbol configured or indicated for the uplink in time division duplex. The UL symbol may be a PUSCH or an OFDM symbol configured or indicated for PUCCH, PRACH, or SRS. The UL symbol may be set by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The UL symbol may be configured by the higher layer parameter tdd-UL-DL-ConfigurationDedicated. The UL slot may be configured by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The UL slot may be configured by the higher layer parameter tdd-UL-DL-ConfigurationDedicated.

A DL symbol may be an OFDM symbol configured or indicated for the 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 set by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The DL symbol may be configured by the higher layer parameter tdd-UL-DL-ConfigurationDedicated. The DL slot may be configured by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The DL slot may be configured by the higher layer parameter tdd-UL-DL-ConfigurationDedicated.

A flexible symbol may be an OFDM symbol that is not set or indicated as a UL symbol or a DL symbol among OFDM symbols in a certain period. The certain period may be the period given by the higher layer parameter dl-UL-TransmissionPeriodicity. The flexible symbol may be an OFDM symbol configured or indicated for PDSCH, PDCCH, PUSCH, PUCCH, or PRACH.

In Frequency Division Duplex (FDD or Paired Spectrum), the N ^repeat _PUCCH slots may be N ^repeat _PUCCH consecutive slots. The first slot of the N ^repeat _PUCCH slots may be the slot indicated by the PDSCH_HARQ feedback timing indication field. The first slot may be the slot determined to transmit the scheduling request. The first slot may be the slot determined to report CSI.

In the terminal device 1, the upper layer parameter PUCCH-Config may be set. PUCCH-Config may be set for BWP-UplinkDedicated. Also, a higher layer parameter subslotLengthForPUCCH (or subslotLengthForPUCCH-r16) may be set in PUCCH-Config. The subslotLengthForPUCCH may indicate the number of OFDM symbols. For example, the subslotLengthForPUCCH may indicate the length of the subslot for PUCCH transmission based on the subslot in number of OFDM symbols. The PUCCH transmission may be PUCCH feedback. The subslotLengthForPUCCH indicating 2 may correspond to the number of OFDM symbols being 2. The subslotLengthForPUCCH indicating 6 may correspond to 6 OFDM symbols. The subslotLengthForPUCCH indicating 7 may correspond to the number of OFDM symbols being 7. The subslotLengthForPUCCH may indicate 2 or 7 if the CP setting is normal CP. The subslotLengthForPUCCH may indicate 2 or 6 if the CP setting is extended CP.

The terminal device 1 may be configured with two PUCCH-Configs. When subslotLengthForPUCCH is set in the first PUCCH-Config, PUCCH resources in the first PUCCH-Config may be within the number of OFDM symbols indicated by the subslotLengthForPUCCH. The PUCCH resource may be a PUCCH resource for reporting HARQ-ACK. The PUCCH resource may be a PUCCH resource for CSI reporting or a PUCCH resource for SR.

If subslotLengthForPUCCH is provided, the first slot for the associated PUCCH transmission may contain the number of OFDM symbols indicated in the subslotLengthForPUCCH. For example, if subslotLengthForPUCCH is set for a PUCCH-Config, the first slot for PUCCH transmission associated with that PUCCH-Config may contain OFDM symbols corresponding to a certain number of OFDM symbols. The certain number of OFDM symbols may be determined by subslotLengthForPUCCH. Including the OFDM symbols corresponding to the certain number of OFDM symbols in the first slot may be that the first slot consists of the certain number of OFDM symbols. For example, if the certain OFDM symbol number is 7, the first slot may consist of 7 OFDM symbols. The first slot may be referred to as a subslot. For example, if subslotLengthForPUCCH is not set for PUCCH-Config, the second slot for PUCCH corresponding to this PUCCH-Config may consist of N ^slot _symb OFDM symbols. Also, the number of OFDM symbols per subslot for PUCCH may be provided in the subslotLengthForPUCCH.

When subslotLengthForPUCCH is set for PUCCH-Config, the first OFDM symbol of the PUCCH resource in this PUCCH-Config may be related to the first OFDM symbol in the first slot. For example, the leading OFDM symbol of the PUCCH resource may be given based on the leading OFDM symbol in the first slot. For example, the first OFDM symbol of the PUCCH resource may be given by the number of OFDM symbols from the first OFDM symbol in the first slot. The first slot may consist of the number of OFDM symbols indicated by the subslotLengthForPUCCH. The number of OFDM symbols configuring the PUCCH resource may not exceed the number of OFDM symbols indicated by the subslotLengthForPUCCH. That is, the number of OFDM symbols to which the PUCCH corresponding to the PUCCH-Config is mapped may not exceed the number of OFDM symbols indicated by the subslotLengthForPUCCH. Also, nrofsymbols corresponding to PUCCH resources in the PUCCH-Config may not exceed the number of OFDM symbols indicated by the subslotLengthForPUCCH. Also, the startingSymbolIndex corresponding to the PUCCH resource in the PUCCH-Config may not exceed the number of OFDM symbols indicated by the subslotLengthForPUCCH. The first slot may be referred to as a subslot.

When subslotLengthForPUCCH is set for PUCCH-Config, a PDCCH containing a DCI format that instructs transmission of PUCCH corresponding to this PUCCH-Config may be received. The DCI format may include a PDSCH_HARQ feedback timing indication field. The PDSCH_HARQ feedback timing indication field may be used at least to indicate the number of subslots from the slot containing the last OFDM symbol of PDSCH to the subslot containing the first OFDM symbol of the PUCCH. Also, the number of OFDM symbols per subslot for indicating the number of subslots may be given by the subslotLengthForPUCCH.

When subslotLengthForPUCCH is set for PUCCH-Config, and the PUCCH corresponding to the PUCCH-Config is transmitted in N ^repeat _PUCCH slots, each of the N ^repeat _PUCCH slots is the number of OFDM symbols indicated by the subslotLengthForPUCCH. may be configured. Each of the N ^repeat _PUCCH slots may be a sub-slot.

FIG. 9 is a diagram illustrating an example of repeated transmission of PUCCH when a normal CP is configured according to one aspect of the present embodiment. Terminal device 1 may transmit PUCCH 9200 in slot 9500 and may transmit PUCCH 9201 in slot 9501 in uplink BWP on an uplink carrier. Slot 9500 and slot 9501 may include N ^slot _symb OFDM symbols. Also, the number of OFDM symbols per slot in slot 9500 and slot 9501 may be N ^slot _symb . For example, slot 9500 may consist of 14 OFDM symbols and slot 9501 may consist of 14 OFDM symbols.

PUCCH 9201 may be a repetition of PUCCH 9200. In addition, in FIG. 9, PUCCH9200 and PUCCH9201 may be repeated when subslotLengthForPUCCH is not set. Also, if subslotLengthForPUCCH is not set for PUCCH-Config, the repetition of PUCCH for this PUCCH-Config may be PUCCH9200 and PUCCH9201. Also, slots 9500 and 9501 may be part or all of the N ^repeat _PUCCH slots. The N ^repeat _PUCCH may be two.

In FIG. 9, the DCI format may dictate transmission of PUCCH 9200 in slot 9500 . The slot identified by the PDSCH_HARQ feedback timing indication field may be slot 9500 if the DCI format includes a PDSCH_HARQ feedback timing indication field. Also, if the DCI format includes a PUCCH resource indication field, the PUCCH resource indication field may indicate one PUCCH resource. A repetition count (or number of slots) may be configured for the one PUCCH resource. N ^repeat _PUCCH may be determined according to the number of repetitions. PUCCH resources for PUCCH 9200 may be the same as PUCCH resources for PUCCH 9201 .

In FIG. 9 , the terminal device 1 may transmit PUCCH 9100 in subslot 9400, may transmit PUCCH 9101 in subslot 9401, and may transmit PUCCH 9102 in subslot 9402 in the uplink BWP in the uplink carrier. , and PUCCH 9103 may be transmitted in subslot 9403 . Each of subslot 9400, subslot 9401, subslot 9402, and subslot 9403 may include OFDM symbols corresponding to the number of OFDM symbols given in subslotLengthForPUCCH. Also, the number of OFDM symbols per slot in subslot 9400, subslot 9401, subslot 9402, and subslot 9403 may be given by subslotLengthForPUCCH. For example, the value set in the subslotLengthForPUCCH may be 7. The number of OFDM symbols per subslot may be seven, if seven is given in the subslotLengthForPUCCH.

PUCCH9101, PUCCH9102, and PUCCH9103 may be repetitions of PUCCH9100. Also, in FIG. 9, PUCCH repetitions when subslotLengthForPUCCH is set to 7 may be PUCCH9100, PUCCH9101, PUCCH9102, and PUCCH9103. Also, when subslotLengthForPUCCH is set for PUCCH-Config, the repetition of PUCCH for this PUCCH-Config may be PUCCH9100, PUCCH9101, PUCCH9102, and PUCCH9103. Also, sub-slot 9400, sub-slot 9401, sub-slot 9402, and sub-slot 9403 may be part or all of the N ^repeat _PUCCH slots. For example, the N ^repeat _PUCCH may be four. Each of the N ^repeat _PUCCH slots may be a sub-slot.

In FIG. 9, the DCI format may dictate transmission of PUCCH 9100 in subslot 9400 . The subslot identified by the PDSCH_HARQ feedback timing indication field may be subslot 9400 if the DCI format includes a PDSCH_HARQ feedback timing indication field. Also, if the DCI format includes a PUCCH resource indication field, the PUCCH resource indication field may indicate one PUCCH resource. A repetition count (or the number of subslots) may be configured for the one PUCCH resource. N ^repeat _PUCCH may be determined according to the number of repetitions. PUCCH resources for PUCCH 9100 may be the same as PUCCH resources for PUCCH 9101 , PUCCH 9102 and PUCCH 9103 .

In FIG. 9 , the terminal device 1 may transmit PUCCH 9000 in subslot 9300, may transmit PUCCH 9001 in subslot 9301, and may transmit PUCCH 9002 in subslot 9302 in the uplink BWP in the uplink carrier. PUCCH 9003 may be transmitted in subslot 9303, PUCCH 9004 may be transmitted in subslot 9304, PUCCH 9005 may be transmitted in subslot 9305, and PUCCH 9006 may be transmitted in subslot 9306. Well, PUCCH 9007 may be transmitted in subslot 9307, PUCCH 9008 may be transmitted in subslot 9308, PUCCH 9009 may be transmitted in subslot 9309, and PUCCH 9010 may be transmitted in subslot 9310, PUCCH 9011 may be transmitted in subslot 9311 , PUCCH 9012 may be transmitted in subslot 9312 , and PUCCH 9013 may be transmitted in subslot 9313 . Subslot 9300, subslot 9301, subslot 9302, subslot 9303, subslot 9304, subslot 9305, subslot 9305, subslot 9306, subslot 9307, subslot 9308, Each of subslot 9309, subslot 9310, subslot 9311, subslot 9312, and subslot 9313 may include OFDM symbols corresponding to the number of OFDM symbols given in subslotLengthForPUCCH. Sub-slot 9300, sub-slot 9301, sub-slot 9302, sub-slot 9303, sub-slot 9304, sub-slot 9305, sub-slot 9305, sub-slot 9306, sub-slot 9307, sub-slot 9308 , subslot 9309, subslot 9310, subslot 9311, subslot 9312, and subslot 9313, the number of OFDM symbols per subslot may be given by subslotLengthForPUCCH. For example, the value set in the subslotLengthForPUCCH may be 2. The number of OFDM symbols per subslot may be 2 if 2 is given in the subslotLengthForPUCCH.

PUCCH 9001, PUCCH 9002, PUCCH 9003, PUCCH 9004, PUCCH 9005, PUCCH 9006, PUCCH 9007, PUCCH 9008, PUCCH 9009, PUCCH 9010, PUCCH 9011, PUCCH 9012, PUCCH 9012, and PUCCH 9090 may be repeated.また、図９において、ｓｕｂｓｌｏｔＬｅｎｇｔｈＦｏｒＰＵＣＣＨに２が設定されている場合のＰＵＣＣＨの繰り返しは、ＰＵＣＣＨ９０００、ＰＵＣＣＨ９００１、ＰＵＣＣＨ９００２、ＰＵＣＣＨ９００３、ＰＵＣＣＨ９００４、ＰＵＣＣＨ９００５、ＰＵＣＣＨ９００６、ＰＵＣＣＨ９００７、ＰＵＣＣＨ９００８、ＰＵＣＣＨ９００９、ＰＵＣＣＨ９０１０、ＰＵＣＣＨ９０１１、ＰＵＣＣＨ９０１２、および、ＰＵＣＣＨ９０１３ may be part or all ofまた、ＰＵＣＣＨ－Ｃｏｎｆｉｇに対してｓｕｂｓｌｏｔＬｅｎｇｔｈＦｏｒＰＵＣＣＨが設定されている場合、該ＰＵＣＣＨ－Ｃｏｎｆｉｇに対するＰＵＣＣＨの繰り返しは、ＰＵＣＣＨ９０００、ＰＵＣＣＨ９００１、ＰＵＣＣＨ９００２、ＰＵＣＣＨ９００３、ＰＵＣＣＨ９００４、ＰＵＣＣＨ９００５、ＰＵＣＣＨ９００６、ＰＵＣＣＨ９００７、ＰＵＣＣＨ９００８、ＰＵＣＣＨ９００９、ＰＵＣＣＨ９０１０、ＰＵＣＣＨ９０１１、 It may be part or all of PUCCH9012 and PUCCH9013. Sub-slot 9300, sub-slot 9301, sub-slot 9302, sub-slot 9303, sub-slot 9304, sub-slot 9305, sub-slot 9306, sub-slot 9307, sub-slot 9308, sub-slot 9309, sub-slot 9310, sub-slot 9311, Subslot 9312 and subslot 9313 may be part or all of the N ^repeat _PUCCH slots. For example, the N ^repeat _PUCCH may be 14. Each of the N ^repeat _PUCCH slots may be a sub-slot. For example, if the N ^repeat _PUCCH is 7, the repetition of PUCCH 9000 may not exceed slot 9500 .

In FIG. 9, the DCI format may dictate transmission of PUCCH 9000 in slot 9300 . The subslot identified by the PDSCH_HARQ feedback timing indication field may be subslot 9300 if the DCI format includes a PDSCH_HARQ feedback timing indication field. Also, if the DCI format includes a PUCCH resource indication field, the PUCCH resource indication field may indicate one PUCCH resource. A repetition count (or the number of subslots) may be configured for the one PUCCH resource. N ^repeat _PUCCH may be determined according to the number of repetitions. The PUCCH resources for PUCCH 9000 may be the same as the resources for PUCCH 9001, PUCCH 9002, PUCCH 9003, PUCCH 9004, PUCCH 9005, PUCCH 9006, PUCCH 9007, PUCCH 9008, PUCCH 9009, PUCCH 9010, PUCCH 9011, PUCCH 9012, PUCCH 9012, and 90.

FIG. 10 is a diagram illustrating an example of repeated transmission of PUCCH when extended CPs are configured according to an aspect of the present embodiment. Terminal device 1 may transmit PUCCH 10200 in slot 10500 and may transmit PUCCH 10201 in slot 10501 in uplink BWP on an uplink carrier. Slot 10500 and slot ₁₀₅₀₁ may include N ^slot symb OFDM symbols. Also, the number of OFDM symbols per slot in slot 10500 and slot ₁₀₅₀₁ may be N ^slot symb. For example, slot 10500 may consist of 12 OFDM symbols and slot 10501 may consist of 12 OFDM symbols.

PUCCH 10201 may be a repetition of PUCCH 10200. In addition, in FIG. 9, repetition of PUCCH when subslotLengthForPUCCH is not set may be PUCCH10200 and PUCCH10201. Also, if subslotLengthForPUCCH is not set for PUCCH-Config, the repetition of PUCCH for this PUCCH-Config may be PUCCH10200 and PUCCH10201. Also, slots 10500 and 10501 may be part or all of the N ^repeat _PUCCH slots. The N ^repeat _PUCCH may be two.

In FIG. 10, the DCI format may dictate transmission of PUCCH 10200 in slot 10500 . The slot identified by the PDSCH_HARQ feedback timing indication field may be slot 10500 if the DCI format includes a PDSCH_HARQ feedback timing indication field. Also, if the DCI format includes a PUCCH resource indication field, the PUCCH resource indication field may indicate one PUCCH resource. A repetition count (or number of slots) may be configured for the one PUCCH resource. N ^repeat _PUCCH may be determined according to the number of repetitions. The PUCCH resource for PUCCH 10200 may be the same as the PUCCH resource for PUCCH 10201 .

In FIG. 10 , the terminal device 1 may transmit PUCCH 10100 in subslot 10400, may transmit PUCCH 10101 in subslot 10401, and may transmit PUCCH 10102 in subslot 10402 in the uplink BWP in the uplink carrier. Alternatively, PUCCH 10103 may be transmitted in subslot 10403. Each of subslot 10400, subslot 10401, subslot 10402, and subslot 10403 may include OFDM symbols corresponding to the number of OFDM symbols given in subslotLengthForPUCCH. Also, the number of OFDM symbols per subslot in subslot 10400, subslot 10401, subslot 10402, and subslot 10403 may be given by subslotLengthForPUCCH. For example, the value set in the subslotLengthForPUCCH may be 6. The number of OFDM symbols per subslot may be 6 if 6 is given in the subslotLengthForPUCCH.

PUCCH 10101, PUCCH 10102, and PUCCH 10103 may be repetitions of PUCCH 10100. In addition, in FIG. 10, repetition of PUCCH when subslotLengthForPUCCH is set to 6 may be PUCCH10100, PUCCH10101, PUCCH10102, and PUCCH10103. Also, when subslotLengthForPUCCH is set for PUCCH-Config, the repetition of PUCCH for this PUCCH-Config may be PUCCH10100, PUCCH10101, PUCCH10102, and PUCCH10103. Also, sub-slot 10400, sub-slot 10401, sub-slot 10402, and sub-slot 10403 may be part or all of the N ^repeat _PUCCH slots. For example, the N ^repeat _PUCCH may be four. Each of the N ^repeat _PUCCH slots may be a sub-slot.

In FIG. 10, the DCI format may indicate transmission of PUCCH 10100 in subslot 10400. In FIG. The subslot identified by the PDSCH_HARQ feedback timing indication field may be subslot 10400 if the DCI format includes a PDSCH_HARQ feedback timing indication field. Also, if the DCI format includes a PUCCH resource indication field, the PUCCH resource indication field may indicate one PUCCH resource. A repetition count (or the number of subslots) may be configured for the one PUCCH resource. N ^repeat _PUCCH may be determined according to the number of repetitions. PUCCH resources for PUCCH 10100 may be the same as PUCCH resources for PUCCH 10101 , PUCCH 10102 and PUCCH 10103 .

In FIG. 10 , terminal device 1 may transmit PUCCH 10000 in subslot 10300, may transmit PUCCH 10001 in subslot 10301, and may transmit PUCCH 10002 in subslot 10302 in uplink BWP in the uplink carrier. PUCCH 10003 may be transmitted in subslot 10303, PUCCH 10004 may be transmitted in subslot 10304, PUCCH 10005 may be transmitted in subslot 10305, and PUCCH 10006 may be transmitted in subslot 10306. Well, PUCCH 10007 may be transmitted in subslot 10307, PUCCH 10008 may be transmitted in subslot 10308, PUCCH 10009 may be transmitted in subslot 10309, PUCCH 10010 may be transmitted in subslot 10310, PUCCH 10011 may be transmitted in subslot 10311 . sub-slot 10300, sub-slot 10301, sub-slot 10302, sub-slot 10303, sub-slot 10304, sub-slot 10305, sub-slot 10306, sub-slot 10307, sub-slot 10308, sub-slot 10309, sub-slot 10310 and sub-slot 10311 Each may contain OFDM symbols corresponding to the number of OFDM symbols given in subslotLengthForPUCCH. Also, sub-slot 10300, sub-slot 10301, sub-slot 10302, sub-slot 10303, sub-slot 10304, sub-slot 10305, sub-slot 10306, sub-slot 10307, sub-slot 10308, sub-slot 10309, sub-slot 10310 and sub-slot The number of OFDM symbols per subslot in 10311 may be given by subslotLengthForPUCCH. For example, the value set in the subslotLengthForPUCCH may be 2. The number of OFDM symbols per subslot may be 2 if 2 is given in the subslotLengthForPUCCH.

PUCCH10001, PUCCH10002, PUCCH10003, PUCCH10004, PUCCH10005, PUCCH10006, PUCCH10007, PUCCH10008, PUCCH10009, PUCCH10010, and PUCCH10011 may be repetitions of PUCCH10000.また、図１０において、ｓｕｂｓｌｏｔＬｅｎｇｔｈＦｏｒＰＵＣＣＨに２が設定されている場合のＰＵＣＣＨの繰り返しは、ＰＵＣＣＨ１００００、ＰＵＣＣＨ１０００１、ＰＵＣＣＨ１０００２、ＰＵＣＣＨ１０００３、ＰＵＣＣＨ１０００４、ＰＵＣＣＨ１０００５、ＰＵＣＣＨ１０００６、ＰＵＣＣＨ１０００７、ＰＵＣＣＨ１０００８、ＰＵＣＣＨ１０００９、ＰＵＣＣＨ１００１０、および、ＰＵＣＣＨ１００１１の一部またはIt can be all.また、ＰＵＣＣＨ－Ｃｏｎｆｉｇに対してｓｕｂｓｌｏｔＬｅｎｇｔｈＦｏｒＰＵＣＣＨが設定されている場合、該ＰＵＣＣＨ－Ｃｏｎｆｉｇに対するＰＵＣＣＨの繰り返しは、ＰＵＣＣＨ１００００、ＰＵＣＣＨ１０００１、ＰＵＣＣＨ１０００２、ＰＵＣＣＨ１０００３、ＰＵＣＣＨ１０００４、ＰＵＣＣＨ１０００５、ＰＵＣＣＨ１０００６、ＰＵＣＣＨ１０００７、ＰＵＣＣＨ１０００８、ＰＵＣＣＨ１０００９、ＰＵＣＣＨ１００１０、および、 It may be part or all of PUCCH 10011 . Also, sub-slot 10300, sub-slot 10301, sub-slot 10302, sub-slot 10303, sub-slot 10304, sub-slot 10305, sub-slot 10306, sub-slot 10307, sub-slot 10308, sub-slot 10309, sub-slot 10310 and sub-slot 10311 may be part or all of the N ^repeat _PUCCH slots. For example, the N ^repeat _PUCCH may be twelve. Each of the N ^repeat _PUCCH slots may be a sub-slot. For example, if the N ^repeat _PUCCH is 6, the repetition of PUCCH 10000 may not exceed slot 10500.

In FIG. 10 , the DCI format may indicate transmission of PUCCH 10000 in subslot 10300 . The subslot identified by the PDSCH_HARQ feedback timing indication field may be subslot 10300 if the DCI format includes a PDSCH_HARQ feedback timing indication field. Also, if the DCI format includes a PUCCH resource indication field, the PUCCH resource indication field may indicate one PUCCH resource. A repetition count (or the number of subslots) may be configured for the one PUCCH resource. N ^repeat _PUCCH may be determined according to the number of repetitions. The PUCCH resources for PUCCH 10000 may be the same as the resources for PUCCH 10001, PUCCH 10002, PUCCH 10003, PUCCH 10004, PUCCH 10005, PUCCH 10006, PUCCH 10007, PUCCH 10008, PUCCH 10009, PUCCH 10010, and PUCCH 11 for PUC PUCH 100.

The number of slots in which a certain PUCCH is transmitted may be set for the PUCCH resource for the certain PUCCH, and the number of OFDM symbols included in each of the slots in which the certain PUCCH is transmitted is changed by subslotLengthForPUCCH. may be So the problem is that the number of slots needs to be adjusted according to the number of OFDM symbols that make up the slots. As an example of the problem, if the number of OFDM symbols included in one UL slot is the same as the number of OFDM symbols included in slot 9500, in the case of N ^repeat _PUCCH is 8, the repetition of PUCCH 9000 is the one UL slot exceeds. Also, when the N ^repeat _PUCCH is 7, repetition of PUCCH9000 can be transmitted within the one UL slot. For example, Means 1, Means 2, and Means 3 may be used to at least solve the problem.

In means 1, the number of repetitions N ^repeat _PUCCH may be determined by a first higher layer parameter in the PUCCH resource. In means 1, the N ^repeat _PUCCH may be determined regardless of whether or not subslotLengthForPUCCH is configured in the terminal device 1. A PUCCH corresponding to the PUCCH resource may be transmitted in the N ^repeat _PUCCH slots. If subslotLengthForPUCCH is configured in PUCCH-Config corresponding to the PUCCH, each of the N ^repeat _PUCCH slots may be configured with the first number of OFDM symbols. Also, each of the N ^repeat _PUCCH slots may include OFDM symbols corresponding to the number of first OFDM symbols. Also, the number of OFDM symbols per slot in the N ^repeat _PUCCH slots may be the number of first OFDM symbols. Also, the number of OFDM symbols included in each of the N ^repeat _PUCCH slots may be the number of the first OFDM symbols. The number of first OFDM symbols may be given in the subslotLengthForPUCCH. The number of first OFDM symbols may be two, six, or seven. That is, when subslotLengthForPUCCH is configured in PUCCH-Config corresponding to the PUCCH, each of the N ^repeat _PUCCH slots may be a subslot. The first higher layer parameter may be called RepetitionFactor-r17 or Nrofslots-r17. The PUCCH resource may be configured by a higher layer parameter PUCCH-Resource, a higher layer parameter PUCCH-ResourceExt-r16, a higher layer parameter PUCCH-ResourceExt-r17, and some or all of the higher layer parameter PUCCH-ResourceExt.

In means 1, N ^repeat _PUCCH is determined by RepetitionFactor-r17 in the PUCCH resource corresponding to PUCCH, and if subslotLengthForPUCCH is not set in PUCCH-Config corresponding to the PUCCH, each of the N ^repeat _PUCCH slots is the second number of OFDM symbols. Also, each of the N ^repeat _PUCCH slots may include OFDM symbols corresponding to the number of the second OFDM symbols. Also, the number of OFDM symbols per slot in the N ^repeat _PUCCH slots may be the number of the second OFDM symbols. Also, the number of OFDM symbols included in each of the N ^repeat _PUCCH slots may be the number of the second OFDM symbols. The number of second OFDM symbols may be N ^slot _symb .

In means 1, RepetitionFactor-r17 may be set for PUCCH resources corresponding to PUCCH. If subslotLengthForPUCCH is configured in the PUCCH-Config corresponding to the PUCCH, the PUCCH may be transmitted in some or all OFDM symbols corresponding to the first number of OFDM symbols. The first number of OFDM symbols may be calculated from the value indicated by RepetitionFactor-r17 and the number of second OFDM symbols. The first number of OFDM symbols may be the product of the value indicated by the RepetitionFactor-r17 and the second number of OFDM symbols. The second OFDM symbol may be given in the subslotLengthForPUCCH. If subslotLengthForPUCCH is not set in the PUCCH-Config corresponding to the PUCCH, the PUCCH may be transmitted in some or all OFDM symbols corresponding to the third number of OFDM symbols. The third OFDM symbol number may be calculated from the value indicated by the RepetitionFactor-r17 and the fourth OFDM symbol number. The third OFDM symbol number may be the product of the value indicated by the RepetitionFactor-r17 and the fourth OFDM symbol number. The fourth OFDM symbol may be the N ^slot _symb .

In means 1, N ^repeat _PUCCH may be 7. For example, when N ^repeat _PUCCH is 7, repetition of PUCCH when subslotLengthForPUCCH is 2 may not exceed one slot when subslotLengthForPUCCH is not configured. Also, the number of OFDM symbols from the first OFDM symbol of subslot 9300 to the last OFDM symbol of subslot 9306 may be the same as the number of OFDM symbols included in slot 9500 . Therefore, N ^repeat _PUCCH may be 7 if repetitions of PUCCH with subslotLengthForPUCCH of 2 are transmitted in slot 9500 .

In measure 1, RepetitionFactor-r17 may select a slot number from a set containing one or more integer values. N ^repeat _PUCCH may be the number of slots. The one slot number may indicate the number of sub-slots. The one set may include seven. The RepetitionFactor-r17 may consist of 3 bits. For example, the one set may include 1, 2, 3, 4, 5, 6, 7, 8. For example, the one set may include 1, 2, 4, 6, 7, 8. For example, the one set may include 1, 2, 4, 6, 7, 8, 12, 14. For example, the one set may include at least 1, 3, 5, 6, 7. For example, based on the fact that the number of one slot is 1, if the repetition of PUCCH is indicated by Nrofslots, the repetition of PUCCH may be cancelled. For example, based on the one slot number is 2, OFDM between the first OFDM symbol of the repetition of PUCCH9100 and the last OFDM symbol of the repetition of PUCCH9100 (that is, the last OFDM symbol of PUCCH9101) The number of symbols need not exceed the number of OFDM symbols contained in slot 9500 . For example, based on the fact that the number of one slot is 6, OFDM between the first OFDM symbol of the repetition of PUCCH 10000 and the last OFDM symbol of the repetition of PUCCH 10000 (that is, the last OFDM symbol of PUCCH 10005) The number of symbols may be aligned with the number of OFDM symbols contained in slot 10500 . For example, based on the one slot number is 7, the first OFDM symbol in the first slot of N ^repeat _PUCCH slots (e.g., sub-slot 9300) and the last slot of N ^repeat _PUCCH slots (e.g., The number of OFDM symbols between the last OFDM symbol in subslot 9306) and the number of OFDM symbols included in slot 9500 may be aligned. For example, based on the number of slots being 5, the reception gain due to repetition may be improved over the number of slots being 4. For example, based on the one slot number of five, the repetition delay may be improved over the one slot number of eight.

In measure 1, RepetitionFactor-r17 may indicate a number of slots from a set containing one or more integer values. N ^repeat _PUCCH may be the number of slots. The RepetitionFactor-r17 may consist of 2 bits. For example, the number of slots may be 1, 2, 4, 8.

In means 1, RepetitionFactor-r17 is not set for the PUCCH resource for PUCCH, and Nrofslots is set for the PUCCH format for the PUCCH, N ^repeat PUCCH for the _PUCCH may be determined by the Norfslots.

In means 1, certain higher layer parameters may be configured for PUCCH resources corresponding to PUCCH. The certain higher layer parameter may select a slot number from a set containing one or more integer values. The number of slots in which the PUCCH is transmitted may be the one slot number. When subslotLengthForPUCCH is configured for PUCCH-Config corresponding to this PUCCH, the number of OFDM symbols included in each slot in which this PUCCH is transmitted may be the first number of OFDM symbols. If the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each slot in which the PUCCH is transmitted may be a second number of OFDM symbols. The first number of OFDM symbols may be given in the subslotLengthForPUCCH. That is, if the subslotLengthForPUCCH is configured, each slot in which the PUCCH is transmitted may be a subslot. If the subslotLengthForPUCCH is configured, the one slot number may be the number of subslots. The second number of OFDM symbols may be given by N ^slot _symb . The one set may include at least seven. Also, the one set may include at least 1, 3, 5, 6, 7.

In means 2, N ^repeat _PUCCH may be determined at least based on whether subslotLengthForPUCCH is set in the first upper layer parameter in the PUCCH resource corresponding to PUCCH and PUCCH-Config corresponding to the PUCCH. . The N ^repeat _PUCCH may be determined from a set including one or more integer values as one slot number. The PUCCH may be transmitted in N ^repeat _PUCCH slots. If the subslotLengthForPUCCH is configured, each of the N ^repeat _PUCCH slots may consist of the first number of OFDM symbols. If the subslotLengthForPUCCH is configured, each of the N ^repeat _PUCCH slots may be a subslot. If the subslotLengthForPUCCH is configured, the one slot number may be the number of subslots. Also, each of the N ^repeat _PUCCH slots may include OFDM symbols corresponding to the number of the first OFDM symbols. Also, the number of OFDM symbols per slot in the N ^repeat _PUCCH slots may be the number of the first OFDM symbols. Also, the number of OFDM symbols included in each of the N ^repeat _PUCCH slots may be the number of the first OFDM symbols. The number of first OFDM symbols may be given in the subslotLengthForPUCCH. If the subslotLengthForPUCCH is not configured, each of the N ^repeat _PUCCH slots may consist of the number of second OFDM symbols. Also, each of the N ^repeat _PUCCH slots may include OFDM symbols corresponding to the number of the second OFDM symbols. Also, the number of OFDM symbols per slot in the N ^repeat _PUCCH slots may be the number of the second OFDM symbols. Also, the number of OFDM symbols included in each of the N ^repeat _PUCCH slots may be the number of the second OFDM symbols. The number of second OFDM symbols may be N ^slot _symb . The number of the first OFDM symbols may be two, six, or seven. The first higher layer parameter may be called RepetitionFactor-r17 or Nrofslots-r17. The PUCCH resource may be set by any of the higher layer parameter PUCCH-Resource, the higher layer parameter PUCCH-ResourceExt-r16, the higher layer parameter PUCCH-ResourceExt-r17, and the higher layer parameter PUCCH-ResourceExt.

In means 2, N ^repeat _PUCCH determined when subslotLengthForPUCCH is set for PUCCH-Config corresponding to PUCCH may differ from N ^repeat _PUCCH determined when the subslotLengthForPUCCH is not set. Also, RepetitionFactor-r17 in the PUCCH resource corresponding to PUCCH may indicate one symbol (or value) among one or more symbols (or values). For example, the RepetitionFactor-r17 may indicate the A out of A and B. When subslotLengthForPUCCH is set in PUCCH-Config corresponding to this PUCCH, this A may be 2 and N ^repeat _PUCCH may be 2. Also, if subslotLengthForPUCCH is not set in PUCCH-Config corresponding to the PUCCH, A may be 1 and N ^repeat _PUCCH may be 1. For example, the RepetitionFactor-r17 may indicate the B out of the A and the B. When subslotLengthForPUCCH is set in PUCCH-Config corresponding to this PUCCH, this B may be 4 and N ^repeat _PUCCH may be 4. Also, if subslotLengthForPUCCH is not set in the PUCCH-Config corresponding to this PUCCH, this B may be 2 and N ^repeat _PUCCH may be 2.

In means 2, RepetitionFactor-r17 in the PUCCH resource corresponding to PUCCH may indicate the number of one slot based at least on whether subslotLengthForPUCCH is set in PUCCH-Config corresponding to the PUCCH. N ^repeat _PUCCH may be the number of slots. The one slot number when the subslotLengthForPUCCH is not configured may be different from the one slot number when the subslotLengthForPUCCH is configured. Also, the one slot number when 2 is set to the subslotLengthForPUCCH may be different from the one slot number when 7 is set to the subslotLengthForPUCCH. Further, the one slot number when the normal CP is set and the subslotLengthForPUCCH is set to 2 is the one when the extended CP is set and the subslotLengthForPUCCH is set to 2. It may differ from the number of slots. In means 2, RepetitionFactor-r17 in the PUCCH resource corresponding to PUCCH may indicate one symbol (or value) among multiple symbols (or values). The one slot number may be determined based at least on the one symbol (or value) and whether or not subslotLengthForPUCCH is set in the PUCCH-Config corresponding to the PUCCH.

In means 2, certain higher layer parameters may be configured for PUCCH resources corresponding to PUCCH. One slot number may be determined based at least on the certain higher layer parameter and whether or not subslotLengthForPUCCH is configured for the PUCCH-Config corresponding to the PUCCH. The number of slots in which the PUCCH is transmitted may be the one slot number. If the subslotLengthForPUCCH is set, the number of OFDM symbols included in each slot in which the PUCCH is transmitted may be a first number of OFDM symbols. If the subslotLengthForPUCCH is configured, each slot in which the PUCCH is transmitted may be a subslot. If the subslotLengthForPUCCH is configured, the one slot number may be the number of subslots. If the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each slot in which the PUCCH is transmitted may be a second number of OFDM symbols. The first number of OFDM symbols may be given in the subslotLengthForPUCCH. The second number of OFDM symbols may be given by N ^slot _symb . The one slot number when the subslotLengthForPUCCH is configured may be different from the one slot number when the subslotLengthForPUCCH is not configured.

In means 3, subslotLengthForPUCCH is set in PUCCH-Config corresponding to the first upper layer parameter in the PUCCH resource corresponding to the PUCCH, the second upper layer parameter in the PUCCH resource corresponding to the PUCCH, and the PUCCH. N ^repeat _PUCCH may be determined based at least on whether or not. The N ^repeat _PUCCH may be determined as one slot number. The PUCCH may be transmitted in N ^repeat _PUCCH slots. If the subslotLengthForPUCCH is configured, each of the N ^repeat _PUCCH slots may consist of the first number of OFDM symbols. If the subslotLengthForPUCCH is configured, each of the N ^repeat _PUCCH slots may be a subslot. Also, each of the N ^repeat _PUCCH slots may include OFDM symbols corresponding to the number of the first OFDM symbols. Also, the number of OFDM symbols per slot in the N ^repeat _PUCCH slots may be the number of the first OFDM symbols. Also, the number of OFDM symbols included in each of the N ^repeat _PUCCH slots may be the number of the first OFDM symbols. The number of first OFDM symbols may be given in the subslotLengthForPUCCH. If the subslotLengthForPUCCH is not configured, each of the N ^repeat _PUCCH slots may consist of the number of second OFDM symbols. Also, each of the N ^repeat _PUCCH slots may include OFDM symbols corresponding to the number of the second OFDM symbols. Also, the number of OFDM symbols per slot in the N ^repeat _PUCCH slots may be the number of the second OFDM symbols. Also, the number of OFDM symbols included in each of the N ^repeat _PUCCH slots may be the number of the second OFDM symbols. The number of second OFDM symbols may be N ^slot _symb . The number of the first OFDM symbols may be two, six, or seven. The first higher layer parameter may be called RepetitionFactor-r17 or Nrofslots-r17. The second higher layer parameter may be called RepetitionFactor2-r17 or Nrofsubslots. The PUCCH resource may be configured by a higher layer parameter PUCCH-Resource, a higher layer parameter PUCCH-ResourceExt-r16, a higher layer parameter PUCCH-ResourceExt-r17, and some or all of the higher layer parameter PUCCH-ResourceExt.

In means 3, N ^repeat _PUCCH determined when subslotLengthForPUCCH is set for PUCCH-Config corresponding to PUCCH may differ from N ^repeat _PUCCH determined when the subslotLengthForPUCCH is not set. Also, when the subslotLengthForPUCCH is not configured, N ^repeat _PUCCH may be determined by Nrofslots-r17. Also, when the subslotLengthForPUCCH is configured, N ^repeat _PUCCH may be determined by Nrofsubslots. The Nrofslots-r17 and the Nrofsubslots may be configured for one PUCCH resource. Nrofsubslots may be ignored if the subslotLengthForPUCCH is not configured. Also, Nrofslots-r17 may be ignored when the subslotLengthForPUCCH is set. The Nrofslots-r17 may indicate one slot number from a first set of slot numbers. The Nrofsubslots may indicate one subslot number from a second set of subslot numbers. One or more integer values included in the first set of slot numbers may be different than one or more integer values included in the second set of subslot numbers. Also, the number of values selectable by the Nrofslots-r17 may differ from the number of values selectable by the Nrofsubslots.

In means 3, the first number of slots may be determined based at least on a first higher layer parameter in the PUCCH resource corresponding to the PUCCH. A second number of slots may be determined based at least on a second higher layer parameter in the PUCCH resource corresponding to the PUCCH. When subslotLengthForPUCCH is configured for PUCCH-Config corresponding to this PUCCH, the number of slots in which this PUCCH is transmitted may be the first number of slots. That is, the first number of slots may be the number of sub-slots. Also, if the subslotLengthForPUCCH is configured, each slot in which the PUCCH is transmitted may be a subslot. If subslotLengthForPUCCH is not set for the PUCCH-Config corresponding to the PUCCH, the number of slots in which the PUCCH is transmitted may be the second number of slots.

In means 3, a first higher layer parameter and a second higher layer parameter may be configured for a PUCCH resource corresponding to PUCCH. If subslotLengthForPUCCH is configured for the PUCCH-Config corresponding to the PUCCH, one slot number may be determined based at least on the first higher layer parameter. If the subslotLengthForPUCCH is not configured, the one slot number may be determined based at least on the second higher layer parameter. The number of slots in which the PUCCH is transmitted may be the one slot number. If the subslotLengthForPUCCH is set, the number of OFDM symbols included in each slot in which the PUCCH is transmitted may be a first number of OFDM symbols. If the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each slot in which the PUCCH is transmitted may be a second number of OFDM symbols. The first number of OFDM symbols may be given in the subslotLengthForPUCCH. The second number of OFDM symbols may be given by N ^slot _symb . The first upper layer parameter may be different than the second upper layer parameter. The first upper layer parameter may be different or independent from the second upper layer parameter.

Aspects of various devices according to one aspect of the present embodiment will be described below.

(1) In order to achieve the above object, the aspects of the present invention take the following measures. That is, a first aspect of the present invention is a terminal device, comprising a receiving unit for receiving a PDCCH including a DCI format that instructs transmission of PUCCH, and a transmitting unit for transmitting the PUCCH, A higher layer parameter is configured for a corresponding PUCCH resource, the certain higher layer parameter selects a slot number from a set containing one or more integer values, and specifies the number of slots in which the PUCCH is transmitted. The number is the number of one slot, and when subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the first is the number of OFDM symbols, and if said subslotLengthForPUCCH is not set, the number of OFDM symbols included in each of the slots in which said PUCCH is transmitted is a second number of OFDM symbols, and said first number of OFDM symbols is said Given by subslotLengthForPUCCH, said number of second OFDM symbols is given by N ^slot _symb , said one set comprising at least seven. Also, the one set includes at least 1, 3, 5, 6, 7.

(2) A second aspect of the present invention is a terminal device, comprising: a receiving unit for receiving a PDCCH including a DCI format for instructing transmission of PUCCH; and a transmitting unit for transmitting the PUCCH, A certain higher layer parameter is set for the PUCCH resource corresponding to, and at least based on whether subslotLengthForPUCCH is set for the PUCCH-Config corresponding to the certain higher layer parameter and the PUCCH, one The number of slots is determined, the number of slots in which the PUCCH is transmitted is the number of one slot, and if the subslotLengthForPUCCH is set, the number of OFDM symbols included in each slot in which the PUCCH is transmitted is , is the first number of OFDM symbols, and if said subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each of the slots in which said PUCCH is transmitted is said second number of OFDM symbols, said first OFDM symbols is given by the subslotLengthForPUCCH, the number of the second OFDM symbols is given by N ^slot _symb , and the one slot number when the subslotLengthForPUCCH is configured is the one when the subslotLengthForPUCCH is not configured. Different from the number of slots.

(3) A third aspect of the present invention is a terminal device, comprising: a receiving unit for receiving a PDCCH including a DCI format that instructs transmission of PUCCH; and a transmitting unit for transmitting the PUCCH, When the first upper layer parameter and the second upper layer parameter are set for the PUCCH resource corresponding to the subslotLengthForPUCCH for the PUCCH-Config corresponding to the PUCCH, the first upper layer parameter and if the subslotLengthForPUCCH is not configured, the number of slots is determined based at least on the second higher layer parameter, and the number of slots in which the PUCCH is transmitted is the number of one slot, and if the subslotLengthForPUCCH is configured, the number of OFDM symbols included in each slot in which the PUCCH is transmitted is the first number of OFDM symbols, and the subslotLengthForPUCCH is not configured if the number of OFDM symbols included in each of the slots in which said PUCCH is transmitted is a second number of OFDM symbols, said first number of OFDM symbols is given by said subslotLengthForPUCCH, said second OFDM symbols A number is given by N ^slot _symb and the first upper layer parameter is different from the second upper layer parameter.

(4) A fourth aspect of the present invention is a base station apparatus, comprising a transmitting unit that transmits a PDCCH including a DCI format that instructs transmission of PUCCH, and a receiving unit that receives the PUCCH, A certain upper layer parameter is configured for a PUCCH resource corresponding to the PUCCH, the certain upper layer parameter indicates one slot number among a plurality of slot numbers, and the number of slots in which the PUCCH is transmitted is the one. is the number of slots, and subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the first number of OFDM symbols. , if said subslotLengthForPUCCH is not set, the number of OFDM symbols included in each slot in which said PUCCH is transmitted is a second number of OFDM symbols, said first number of OFDM symbols is given by said subslotLengthForPUCCH; The second number of OFDM symbols is given by N ^slot _symb and the number of one slot is seven. Also, the number of slots may be 1, 2, 3, 4, 5, 6, 7, or 8.

(5) A fifth aspect of the present invention is a base station apparatus, comprising a transmitting unit that transmits a PDCCH including a DCI format that instructs transmission of PUCCH, and a receiving unit that receives the PUCCH, A higher layer parameter is configured for the PUCCH resource corresponding to the PUCCH, and at least based on whether subslotLengthForPUCCH is configured for the PUCCH-Config corresponding to the certain higher layer parameter and the PUCCH, 1 number of slots is determined, the number of slots in which the PUCCH is transmitted is the number of slots, and when the subslotLengthForPUCCH is set, the number of OFDM symbols included in each slot in which the PUCCH is transmitted is the first number of OFDM symbols, and if the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the second number of OFDM symbols, and the first OFDM The number of symbols is given by the subslotLengthForPUCCH, the number of the second OFDM symbols is given by N ^slot _symb , and the number of one slot when the subslotLengthForPUCCH is set is the one when the subslotLengthForPUCCH is not set. different than the number of slots.

(6) A sixth aspect of the present invention is a base station apparatus, comprising a receiving unit that transmits a PDCCH including a DCI format that instructs transmission of PUCCH, and a receiving unit that receives the PUCCH, When a first higher layer parameter and a second higher layer parameter are set for a PUCCH resource corresponding to PUCCH, and a subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the first upper layer If the number of slots is determined based at least on a parameter, and the subslotLengthForPUCCH is not set, the number of slots is determined based on at least the second higher layer parameter, and the number of slots in which the PUCCH is transmitted number is the number of one slot, and if the subslotLengthForPUCCH is configured, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the first number of OFDM symbols, and the subslotLengthForPUCCH is configured If not, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is a second number of OFDM symbols, wherein the first number of OFDM symbols is given by the subslotLengthForPUCCH and the second OFDM The number of symbols is given by N ^slot _symb and the first upper layer parameter is different from the second upper layer parameter.

A program that operates on the base station device 3 and the terminal device 1 according to one aspect of the present invention controls a CPU (Central Processing Unit) and the like so as to realize the functions of the above-described embodiments related to one aspect of the present invention. It may be a program (a program that causes a computer to function). The information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive), It is read, modified, and written by the CPU as necessary.

It should be noted 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 that case, a program for realizing this control function may be recorded in a computer-readable recording medium, and the program recorded in this recording medium may be read into a computer system and executed.

The "computer system" here is a computer system built into the terminal device 1 or the 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 discs, magneto-optical discs, ROMs and CD-ROMs, and storage devices such as hard discs incorporated in computer systems.

Furthermore, "computer-readable recording medium" means a medium that dynamically stores a program for a short period of time, such as a communication line for transmitting a program via a network such as the Internet or a communication line such as a telephone line. In that case, it may also include a memory that holds the program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or client. Further, the program may be for realizing part of the functions described above, or may be capable of realizing the functions described above in combination with a program already recorded in the computer system.

Also, the base station device 3 in the above-described embodiment can be realized as an aggregate (device group) composed of a plurality of devices. Each of the devices constituting the device group may include a part or all of each function or each functional block of the base station device 3 related to the above-described embodiments. A device group may have a series of functions or functional blocks of the base station device 3 . Also, the terminal device 1 according to the above-described embodiments can communicate with a base station device as a group.

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

Also, part or all of the terminal device 1 and the base station device 3 in the above-described embodiments may be typically implemented as an LSI, which is an integrated circuit, or may be implemented as a chipset. Each functional block of the terminal device 1 and the base station device 3 may be individually chipped, or part or all of them may be integrated and chipped. Also, the method of circuit integration is not limited to LSI, but may be realized by a dedicated circuit or a general-purpose processor. In addition, when a technology for integrating circuits to replace LSIs emerges due to advances in semiconductor technology, it is possible to use an integrated circuit based on this technology.

In addition, in the above-described embodiments, a terminal device was described as an example of a communication device, but the present invention is not limited to this. For example, it can be applied to terminal devices or communication devices such as AV equipment, kitchen equipment, cleaning/washing equipment, air conditioning equipment, office equipment, vending machines, and other household equipment.

Although the embodiment of this invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes etc. within the scope of the gist of this invention are also included. Further, one aspect of the present invention can be modified in various ways within the scope of the claims, and an embodiment obtained by appropriately combining technical means disclosed in different embodiments can also be Included in the scope. Moreover, it is an element described in each said embodiment, and the structure which replaced the element with which the same effect is produced is also included.

One aspect of the present invention is, for example, a communication system, a communication device (e.g., a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (e.g., a communication chip), or a program, etc. be able to.

1 (1A, 1B, 1C) terminal device 3

base station devices

10, 30 radio transmitting/receiving units 10a, 30a radio transmitting units 10b, 30b

radio receiving units

11, 31

antenna units

12, 32

RF units

13, 33

baseband unit

14, 34 upper

layer processing units

15, 35 medium access control

layer processing units

16, 36 radio resource control

layer processing units

91, 92, 93, 94 search area set 300 component carrier 301

primary cells

302, 303 secondary cells 3000

points

3001, 3002

resources grid

3003, 3004 BWP
3011, 3012, 3013, 3014 offsets 3100, 3200 common resource block sets 9000, 9001, 9002, 9003, 9004, 9005, 9006, 9007, 9008, 9009, 9010, 9011, 9012, 9013, 9100, 9101, 9102, 9103 , 9200, 9201, 10000, 10001, 10002, 10003, 10004, 10005, 10006, 10007, 10008, 10009, 10010, 10011, 10100, 10101, 10102, 10103, 10200, 10201 PUCCH
9300, 9301, 9302, 9303, 9304, 9305, 9306, 9307, 9308, 9309, 9310, 9311, 9312, 9313, 9400, 9401, 9402, 9403, 10300, 10301, 10302, 10303, 10304, 10305, 10307, 10308, 10309, 10310, 10311, 10400, 10401, 10402, 10403 sub-slots 9500, 9501, 10500, 10501 slots

Claims

A receiving unit that receives a PDCCH including a DCI format that instructs transmission of PUCCH;
A transmitting unit that transmits the PUCCH,
A higher layer parameter is configured for a PUCCH resource corresponding to the PUCCH,
the certain upper layer parameter selects an integer value from a set including a plurality of integer values;
The number of slots in which the PUCCH is transmitted is the one integer value,
When subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the first number of OFDM symbols,
if the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each slot in which the PUCCH is transmitted is a second number of OFDM symbols;
The first number of OFDM symbols is given by the subslotLengthForPUCCH,
The second number of OFDM symbols is given by N slot symb ,
The one set includes at least 7 terminal devices.
The terminal device according to claim 1, wherein said one set includes at least 1, 3, 5, 6, 7.
A transmission unit that transmits a PDCCH including a DCI format that instructs transmission of PUCCH;
A receiving unit that receives the PUCCH,
A higher layer parameter is configured for a PUCCH resource corresponding to the PUCCH,
the certain higher layer parameter selects a slot number from a set comprising one or more integer values;
The number of slots in which the PUCCH is transmitted is the number of one slot,
When subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the first number of OFDM symbols,
if the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each slot in which the PUCCH is transmitted is a second number of OFDM symbols;
The first number of OFDM symbols is given by the subslotLengthForPUCCH,
The second number of OFDM symbols is given by N slot symb ,
The one set includes at least 7. Base station apparatus.
4. The base station apparatus according to claim 3, comprising said one set, at least 1, 3, 5, 6, 7.
A communication method used in a terminal device,
receiving a PDCCH containing a DCI format indicating transmission of PUCCH;
and transmitting the PUCCH;
A higher layer parameter is configured for a PUCCH resource corresponding to the PUCCH,
the certain higher layer parameter selects a slot number from a set comprising one or more integer values;
The number of slots in which the PUCCH is transmitted is the number of one slot,
When subslotLengthForPUCCH is set for PUCCH-Config corresponding to the PUCCH, the number of OFDM symbols included in each of the slots in which the PUCCH is transmitted is the first number of OFDM symbols,
if the subslotLengthForPUCCH is not configured, the number of OFDM symbols included in each slot in which the PUCCH is transmitted is a second number of OFDM symbols;
The first number of OFDM symbols is given by the subslotLengthForPUCCH,
The second number of OFDM symbols is given by N slot symb ,
The one set includes at least 7 communication methods.