JP7727661B2 - Terminal device, base station device, and communication method - Google Patents

Description

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. 2020-205473, filed on December 11, 2020, the contents of which are incorporated herein by reference.

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

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

3GPP is currently studying the expansion of services supported by NR (Non-Patent Document 2).

"New SID proposal: Study on New Radio Access Technology", RP-160671, NTT docomo, 3GPP TSG RAN Meeting #71, Goteborg, Sweden, 7th - 10th March, 2016. “Release 17 package for RAN”, RP-193216, RAN chairman, RAN1 chairman, RAN2 chairman, RAN3 chairman, 3GPP TSG RAN Meeting #86, Sitges, Spain, 9th ― 12th December, 2019

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 generation unit that generates a modulation symbol sequence; and a transmission unit that transmits the modulation symbol sequence on a PUCCH, wherein the modulation symbol sequence is generated based at least on applying a cyclic shift to a base sequence, the modulation symbol sequence being mapped to a set of resource elements in the PUCCH, and further comprising a processing unit that at least associates some or all of the values of uplink control information transmitted on the PUCCH with a group number corresponding to the base sequence.

(2) A second aspect of the present invention is a base station device comprising a receiving unit that receives a modulation symbol sequence on a PUCCH, wherein the modulation symbol sequence is generated at least based on applying a cyclic shift to a base sequence, the modulation symbol sequence is mapped to a set of resource elements in the PUCCH, and further, some or all of the values of uplink control information transmitted on the PUCCH are associated with at least a group number corresponding to the base sequence.

(3) A third aspect of the present invention is a communication method for use in a terminal device, comprising the steps of generating a modulation symbol sequence and transmitting the modulation symbol sequence on a PUCCH, wherein the modulation symbol sequence is generated based at least on applying a cyclic shift to a base sequence, and the modulation symbol sequence is mapped to a set of resource elements in the PUCCH, and further comprising the step of associating at least some or all of the values of uplink control information transmitted on the PUCCH with a group number corresponding to the base sequence.

(4) A fourth aspect of the present invention is a communication method used in a base station device, comprising a step of receiving a modulation symbol sequence on a PUCCH, wherein the modulation symbol sequence is generated at least based on applying a cyclic shift to a base sequence, the modulation symbol sequence is mapped to a set of resource elements in the PUCCH, and further, some or all of the values of uplink control information transmitted on the PUCCH are associated with at least a group number corresponding to the base sequence.

According to one aspect of this invention, terminal devices can communicate efficiently. Also, base station devices can communicate efficiently.

1 is a conceptual diagram of a wireless communication system according to an aspect of the present embodiment. 10 is an example showing the relationship between a subcarrier spacing setting μ, the number of OFDM symbols per slot N ^slot _symb , and a cyclic prefix (CP) setting according to one aspect of the present embodiment. FIG. 10 is a diagram illustrating an example of a method for configuring a resource grid according to an aspect of the present embodiment. FIG. 30 is a diagram illustrating an example of the configuration of a resource grid 3001 according to one aspect of the present embodiment. FIG. 2 is a schematic block diagram illustrating an example of the configuration of a base station device 3 according to one aspect of the present embodiment. 1 is a schematic block diagram illustrating an example of the configuration of a terminal device 1 according to an aspect of the present embodiment. A figure showing an example of the configuration of an SS/PBCH block related to one aspect of this embodiment. FIG. 10 is a diagram illustrating an example of a monitoring opportunity for a set of search areas according to one aspect of the present embodiment. FIG. 10 is a diagram illustrating an example in which a modulation symbol sequence for a PUCCH is mapped to a set of resource elements according to one aspect of the present embodiment. FIG. 10 is a diagram illustrating an example in which values of 4-bit uplink control information according to one aspect of the present embodiment correspond to combinations of values of parameters X and Y. FIG. 10 is a diagram illustrating an example in which the value of 4-bit uplink control information according to one aspect of the present embodiment corresponds to a combination of the value of a parameter X′, the value of a parameter Y′, and the value of a parameter Z′.

The following describes an embodiment of the present invention.

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

In a wireless communication system according to one aspect of this embodiment, at least OFDM (Orthogonal Frequency Division Multiplexing) is used. An OFDM symbol is a time domain unit of OFDM. An OFDM symbol includes at least one or more subcarriers. The OFDM symbol is converted into a time-continuous signal during baseband signal generation. In the downlink, at least CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplexing) is used. In the uplink, either CP-OFDM or DFT-s-OFDM (Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing) is used. DFT-s-OFDM may be achieved by applying transform precoding to CP-OFDM.

The OFDM symbol may be a name that includes the CP added to the OFDM symbol. In other words, a certain OFDM symbol may be composed of that certain OFDM symbol and the CP added to that certain OFDM symbol.

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

The base station device 3 may be configured to include one or more transmitting devices (or transmission points, transmitting/receiving devices, transmitting/receiving points). If the base station device 3 is configured with multiple transmitting devices, each of the multiple transmitting devices may be located in a different location.

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

A serving cell may be configured to include at least one downlink component carrier (downlink carrier) and/or one uplink component carrier (uplink carrier). A serving cell may be configured to include at least two or more downlink component carriers and/or two or more uplink component carriers. A downlink component carrier and an uplink component carrier are also referred to as a component carrier (carrier).

For example, one resource grid may be provided for one component carrier. Also, one resource grid may be provided for one component carrier and a certain subcarrier spacing configuration μ. Here, the subcarrier spacing configuration μ is also referred to as numerology. The resource grid includes N ^size,μ _grid,x N ^RB _sc subcarriers. The resource grid starts from a common resource block N ^start,μ _grid,x . The common resource block N ^start,μ _grid,x is also referred to as the reference point of the resource grid. The resource grid includes N ^subframe,μ _symb OFDM symbols. x is a subscript indicating the transmission direction, either downlink or uplink. One resource grid is provided for a set of an antenna port p, a certain subcarrier spacing configuration μ, and a certain transmission direction x.

N ^size,μ _grid,x and N ^start,μ _grid,x are determined based at least on a higher layer parameter (CarrierBandwidth). The higher layer parameter is also referred to as an SCS specific carrier. One resource grid corresponds to one SCS specific carrier. One component carrier may include one or more SCS specific carriers. The SCS specific carriers may be included in the system information. One subcarrier spacing setting μ may be determined for each SCS specific carrier.

The subcarrier spacing (SCS) Δf may be Δf= ^2μ ·15 kHz. For example, the subcarrier spacing setting μ may represent any of 0, 1, 2, 3, or 4.

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

In a wireless communication system according to an aspect of this embodiment, a time unit _Tc may be used to express a length in the time domain. The time unit _Tc is _Tc = 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 , where _Tf = ( _{Δfmax Nf} /100)· _Ts = 10 ms. "·" indicates multiplication. A radio frame includes 10 subframes. The length of a subframe is _Tsf = ( _{Δfmax Nf} /1000)· _Ts = 1 ms. The number of OFDM symbols per subframe is Nsubframe ^, _μsymb = ^Nslotsymb _Nsubframe ^,μslot _.

For a certain subcarrier spacing setting μ, the number and index of slots included in a subframe may be given. For example, slot index n ^μ _s may be given as integer values ranging from 0 to N ^subframe,μ _slot −1 in ascending order in a subframe. For a certain subcarrier spacing setting μ, the number and index of slots included in a radio frame may be given. Also, slot index n ^μ _s,f may be given as integer values ranging from 0 to N ^frame,μ _slot −1 in ascending order in a radio frame. N ^slot _symb consecutive OFDM symbols may be included in one slot. ^{N slot} _symb =14.

Fig. 3 is a diagram showing an example of a resource grid configuration method according to one aspect of this embodiment. The horizontal axis in Fig. 3 represents the frequency domain. Fig. 3 shows an example of a resource grid configuration with subcarrier spacing μ ₁ in a component carrier 300, and an example of a resource grid configuration with subcarrier spacing μ ₂ in the component carrier. In this way, one or more subcarrier spacings may be set for a certain component carrier. In Fig. 3, it is assumed that μ ₁ = μ ₂ - 1, but various aspects of this embodiment are not limited to the condition μ ₁ = μ ₂ - 1.

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

Point 3000 is an identifier for identifying a certain subcarrier. Point 3000 is also referred to as point A. Common resource block (CRB) set 3100 is a set of common resource blocks for the subcarrier spacing setting μ ₁ .

Of the common resource block set 3100, the common resource block that includes point 3000 (the block indicated by the diagonal line slanting upward to the right in Figure 3) is also referred to as the reference point of the common resource block set 3100. The reference point of the common resource block set 3100 may be the common resource block with index 0 in the common resource block set 3100.

The offset 3011 is the offset from the reference point of the common resource block set 3100 to the reference point of the resource grid 3001. The offset 3011 is indicated by the number of common resource blocks for the subcarrier spacing setting μ _1. The resource grid 3001 includes N ^size,μ _grid1,x common resource blocks starting from the reference point of the resource grid 3001.

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

Common resource block set 3200 is a set of common resource blocks for subcarrier spacing setting μ ₂ .

Of the common resource block set 3200, the common resource block that includes point 3000 (the block indicated by the diagonal line slanting upward to the left in Figure 3) is also referred to as the reference point of the common resource block set 3200. The reference point of the common resource block set 3200 may be the common resource block with index 0 in the common resource block set 3200.

The offset 3012 is the offset from the reference point of the common resource block set 3200 to the reference point of the resource grid 3002. The offset 3012 is indicated by the number of common resource blocks relative to the subcarrier spacing μ _2. 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 showing an example of the configuration of a resource grid 3001 according to one aspect of this embodiment. In the resource grid of Fig. 4, the horizontal axis represents the OFDM symbol index l _sym and the vertical axis represents the subcarrier index k _sc . The resource grid 3001 includes N ^size,μ _grid1,× N ^RB _sc subcarriers and N ^subframe,μ _symb OFDM symbols. Within the resource grid, a resource identified by the subcarrier index k _sc and the OFDM symbol index l _sym is also referred to as a resource element (RE).

A resource block (RB) includes N ^RB _sc consecutive subcarriers. Resource block is a collective term for common resource blocks, physical resource blocks (PRBs), and virtual resource blocks (VRBs), 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 contains 12 resource elements corresponding to one OFDM symbol in one resource block.

The common resource blocks for a given subcarrier spacing setting μ are indexed in a given common resource block set in the frequency domain in ascending order starting from 0. For a given subcarrier spacing setting μ, the common resource block with index 0 includes (or collides with, or coincides 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 ), where the subcarrier with k _sc = 0 is the subcarrier with the same center frequency as the subcarrier corresponding to point 3000.

The physical resource blocks for a given subcarrier spacing setting μ are indexed in the frequency domain in ascending order starting from 0 in a given BWP. The 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 with index i.

A BWP is defined as a subset of common resource blocks included in a resource grid. A BWP includes 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 configured for an uplink component carrier is also called an uplink BWP.

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

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

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

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

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

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

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

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

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

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

The radio transceiver unit 30 (or the radio transmitter unit 30a) performs processes such as modulation and encoding. The radio transceiver unit 30 (or the radio transmitter unit 30a) generates a physical signal by modulating, encoding, and generating a baseband signal (converting it into a time-continuous signal) the downlink data, and transmits it to the terminal device 1. The radio transceiver unit 30 (or the radio transmitter unit 30a) may place the physical signal on a component carrier and transmit it to the terminal device 1.

The radio transceiver unit 30 (or the radio receiver unit 30b) performs processes such as demodulation and decoding. The radio transceiver unit 30 (or the radio receiver unit 30b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 34. The radio transceiver unit 30 (or the radio receiver unit 30b) may perform a channel access procedure prior to transmitting the physical signal.

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

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 cyclic prefix (CP) from the converted digital signal, and performs a fast Fourier transform (FFT) on the CP-removed signal to extract the frequency domain signal.

The baseband unit 33 performs an Inverse Fast Fourier Transform (IFFT) on the data to generate OFDM symbols, adds a CP to the generated OFDM symbols, generates baseband digital signals, and converts the baseband digital signals to analog signals. The baseband unit 33 outputs the converted analog signals to the RF unit 32.

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

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

Each of the serving cells configured for the terminal device 1 may be either a PCell (Primary cell), a PSCell (Primary SCG cell), or an SCell (Secondary Cell).

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

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 terminal device 1 during a reconfiguration procedure with synchronization.

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

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

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

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

Downlink BWP switch is used to deactivate one active downlink BWP and activate any inactive downlink BWP other than the one active downlink BWP. Downlink BWP switch may be controlled by the BWP field included in downlink control information. Downlink BWP switch may also be controlled based on higher layer parameters.

Uplink BWP switching is used to deactivate one active uplink BWP and activate any inactive uplink BWPs other than the one active uplink BWP. Uplink BWP switching may be controlled by the BWP field included in the downlink control information. Uplink BWP switching may also be controlled based on higher layer parameters.

Of one or more downlink BWPs configured for a 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 any given time.

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

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

The wireless transceiver unit 10 includes at least a wireless transmitter unit 10a and part or all of a wireless receiver unit 10b. Here, the baseband unit 13 included in the wireless transmitter unit 10a and the baseband unit 13 included in the wireless receiver unit 10b may have the same or different device configurations. Furthermore, the RF unit 12 included in the wireless transmitter unit 10a and the RF unit 12 included in the wireless receiver unit 10b may have the same or different device configurations. Furthermore, the antenna unit 11 included in the wireless transmitter unit 10a and the antenna unit 11 included in the wireless receiver unit 10b may have the same or different device configurations.

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

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

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

The media 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 the RRC parameters based on the RRC message received from the base station device 3.

The radio transceiver unit 10 (or the radio transmitter unit 10a) performs processes such as modulation and encoding. The radio transceiver unit 10 (or the radio transmitter unit 10a) generates a physical signal by modulating, encoding, and generating a baseband signal (converting to a time-continuous signal) the uplink data, and transmits it to the base station device 3. The radio transceiver unit 10 (or the radio transmitter unit 10a) may place the physical signal in a certain BWP (active uplink BWP) and transmit it to the base station device 3.

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

The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by quadrature demodulation (down-converting) and removes unnecessary frequency components. The RF unit 12 outputs the processed analog signal to the baseband unit 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 cyclic prefix (CP) from the converted digital signal, and performs a fast Fourier transform (FFT) on the CP-removed signal to extract the frequency domain signal.

The baseband unit 13 performs an Inverse Fast Fourier Transform (IFFT) on the uplink data to generate OFDM symbols, adds a CP to the generated OFDM symbols, generates baseband digital signals, and converts the baseband digital signals to analog signals. The baseband unit 13 outputs the converted analog signals to the RF unit 12.

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

The following explains physical signals (signals).

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

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

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

The uplink control information (uplink control information bits, uplink control information sequence, uplink control information type) includes at least some or all of the channel state information (CSI), scheduling request (SR), and HARQ-ACK (Hybrid Automatic Repeat request ACKnowledgement) information.

Channel state information is also referred to as channel state information bits or channel state information sequences. Scheduling requests are also referred to as scheduling request bits or scheduling request sequences. HARQ-ACK information is also referred to as HARQ-ACK information bits or HARQ-ACK information sequences.

The HARQ-ACK information may include at least a HARQ-ACK corresponding to a transport block (TB: Transport block, MAC PDU: Medium Access Control Protocol Data Unit, DL-SCH: Downlink-Shared Channel, UL-SCH: Uplink-Shared Channel, PDSCH: Physical Downlink Shared Channel, PUSCH: Physical Uplink Shared CHannel). The HARQ-ACK may indicate an acknowledgement (ACK) or a negative acknowledgement (NACK) corresponding to the transport block. An ACK may indicate that decoding of the transport block has been successfully completed. A NACK may indicate that decoding of the transport block has not been successfully completed. The HARQ-ACK information may include a HARQ-ACK codebook including one or more HARQ-ACK bits.

Correspondence between HARQ-ACK information and a transport block may mean that the HARQ-ACK information and the PDSCH used to transmit the transport block correspond to each other.

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

The scheduling request may be used at least to request PUSCH (or UL-SCH) resources for an initial transmission. The scheduling request bit may be used to indicate either a positive SR or a negative SR. When the scheduling request bit indicates a positive SR, this is also referred to as "a positive SR being transmitted." A positive SR may indicate that PUSCH (or UL-SCH) resources are requested by the terminal device 1 for the initial transmission. A positive SR may indicate that a scheduling request is triggered by a higher layer. A positive SR may be transmitted when a scheduling request is instructed to be transmitted by a higher layer. When the scheduling request bit indicates a negative SR, this is also referred to as "a negative SR being transmitted." A negative SR may indicate that PUSCH (or UL-SCH) resources are not requested by the terminal device 1 for the initial transmission. A negative SR may indicate that no scheduling request is triggered by higher layers. A negative SR may be sent when no scheduling request is instructed to be sent by higher layers.

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

The channel state information may be provided based at least on receiving a physical signal (e.g., CSI-RS) used at least for channel measurement. The channel state information may be selected by the terminal device 1 based at least on receiving a physical signal used at least for channel measurement. The channel measurement may include interference measurement.

A PUCCH may correspond to a PUCCH format. A PUCCH may be a set of resource elements used to convey the PUCCH format. A PUCCH may include the PUCCH format.

The PUSCH may be used to transmit transport blocks and/or uplink control information. The PUSCH may be used to transmit transport blocks corresponding to the UL-SCH and/or uplink control information. The PUSCH may be used to transmit transport blocks and/or uplink control information. The PUSCH may be used to transmit transport blocks corresponding to the UL-SCH and/or uplink control information. The transport blocks may be allocated to the PUSCH. The transport blocks corresponding to the UL-SCH may be allocated to the PUSCH. The uplink control information may be allocated to the PUSCH. The terminal device 1 may transmit a PUSCH in which transport blocks and/or uplink control information are allocated. The base station device 3 may receive a PUSCH in which transport blocks and/or uplink control information are allocated.

The PRACH may be used to transmit a random access preamble. The PRACH may be used to transmit a random access preamble. A PRACH sequence xu _,v (n) is defined by xu _,v (n) = _xu (mod(n+ _Cv , _LRA )). _xu may be a ZC (Zadoff-Chu) sequence. _xu is defined by _xu = exp(-jπui(i+1)/ _LRA ), where j is the imaginary unit and π is the ratio of the circumference of a circle to its circumference. _Cv corresponds to a cyclic shift of the PRACH sequence. _LRA corresponds to the length of the PRACH sequence. _LRA is 839 or 139. i is an integer ranging from 0 to _LRA -1. u is a sequence index for the PRACH sequence. The terminal device 1 may transmit the PRACH, and the base station device 3 may receive the PRACH.

For a given PRACH opportunity, 64 random access preambles are defined. The random access preambles are identified (determined or given) based on at least a cyclic shift _Cv of the PRACH sequence and a sequence index u for the PRACH sequence. Each of the 64 identified random access preambles may be assigned an index.

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

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

The set of antenna ports for DMRS for PUSCH (DMRS associated with PUSCH, DMRS included in PUSCH, DMRS corresponding to PUSCH) may be determined based on the set of antenna ports for the PUSCH. In other words, the set of antenna ports for DMRS for PUSCH may be the same as the set of antenna ports for the PUSCH.

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

The PUSCH may be estimated from the DMRS for the PUSCH. In other words, the propagation path of the PUSCH may be estimated from the DMRS for the PUSCH.

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

Transmission of a PUCCH and transmission of a DMRS for the PUCCH may be indicated (or triggered) by one DCI format. The mapping of the PUCCH to resource elements and/or the mapping of the DMRS for the PUCCH to resource elements may be provided by one PUCCH format. The PUCCH and the DMRS for the PUCCH may be collectively referred to as the PUCCH. Transmitting a PUCCH may also mean transmitting the PUCCH and the DMRS for the PUCCH.

The PUCCH may be estimated from the DMRS for the PUCCH. In other words, the propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.

The downlink physical channel may correspond to a set of resource elements carrying information generated in a higher layer. The downlink physical channel may be a physical channel used in a downlink component carrier. The base station device 3 may transmit the downlink physical channel. The terminal device 1 may receive the downlink physical channel. In a wireless communication system according to one aspect of 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 used to transmit a Master Information Block (MIB) and/or physical layer control information. The PBCH may be transmitted to deliver, transmit, or convey the MIB and/or physical layer control information. The BCH may be mapped to the PBCH. The terminal device 1 may receive a PBCH in which the MIB and/or physical layer control information is mapped. The base station device 3 may transmit a PBCH in which the MIB and/or physical layer control information is mapped. The physical layer control information is also called a PBCH payload or a PBCH payload related to timing. The MIB may include one or more higher layer parameters.

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

The radio frame bits are used to indicate the radio frame in which the PBCH is transmitted (the radio frame including the slot in which the PBCH is transmitted). The radio frame bits include 4 bits. The radio frame bits may be composed of 4 bits of a 10-bit radio frame indicator. For example, the radio frame indicator may be used at least to identify radio frames with 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 a radio frame in which the PBCH is transmitted. Here, a half radio frame may be composed of five subframes. Alternatively, a half radio frame may be composed of the first five subframes of the ten subframes included in a radio frame. Alternatively, a half radio frame may be composed of the last five subframes of the ten subframes included in a radio frame.

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

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

The PDCCH may be used to transmit downlink control information (DCI). The PDCCH may be transmitted to deliver, transmit, or convey the downlink control information. The downlink control information may be mapped to the PDCCH. The terminal device 1 may receive the PDCCH in which the downlink control information is mapped. The base station device 3 may transmit the PDCCH in which the downlink control information is mapped.

The downlink control information may correspond to a DCI format. The downlink control information may be included in the DCI format. The downlink control information may be placed in each field of the DCI format.

DCI format 0_0, DCI format 0_1, DCI format 1_0, and DCI format 1_1 are DCI formats that each include a different set of fields. The uplink DCI format is a general term for DCI format 0_0 and DCI format 0_1. The downlink DCI format is a general term for DCI format 1_0 and DCI format 1_1.

DCI format 0_0 is used at least for scheduling a PUSCH of a certain cell (or configured in a certain cell), and is configured to include at least some or all of fields 1A to 1E.
1A) Identifier field for DCI formats
1B) Frequency Domain Resource Assignment Field
1C) Time Domain Resource Assignment Field
1D) Frequency hopping flag field
1E) MCS field (Modulation and Coding Scheme field)

The DCI format specification field may indicate whether the DCI format containing the DCI format specification field is an uplink DCI format or a downlink DCI format. The DCI format specification field included in DCI format 0_0 may indicate 0 (or may indicate that DCI format 0_0 is an uplink DCI format).

The frequency domain resource allocation field included in DCI format 0_0 may be used at least to indicate the allocation of frequency resources for PUSH.

The time domain resource allocation field included in DCI format 0_0 may be used at least to indicate the allocation of time resources for PUSH.

The frequency hopping flag field may be used at least to indicate whether frequency hopping is applied to the PUSH.

The MCS field included in DCI format 0_0 may be used to indicate at least some or all of the modulation scheme and/or target coding rate for the PUSCH. The target coding rate may be the target coding rate for the PUSCH transport block. The size of the PUSCH transport block (TBS) may be determined based on at least some or all of the target coding rate and the modulation scheme for the PUSCH.

DCI format 0_0 may not include fields used for CSI requests. In other words, CSI may not be requested by DCI format 0_0.

DCI format 0_0 may not include a carrier indicator field. In other words, the uplink component carrier on which the PUSCH scheduled by DCI format 0_0 is allocated may be the same as the uplink component carrier on which the PDCCH including DCI format 0_0 is allocated.

DCI format 0_0 may not include a BWP field. In other words, the uplink BWP in which the PUSH scheduled by DCI format 0_0 is placed may be the same as the uplink BWP in which the PDCCH including DCI format 0_0 is placed.

DCI format 0_1 is used at least for scheduling a PUSCH of a certain cell (located in a certain cell), and is configured to include at least some or all of fields 2A to 2H.
2A) DCI format specific 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 (or may indicate that DCI format 0_1 is an uplink DCI format).

The frequency domain resource allocation field included in DCI format 0_1 may be used at least to indicate the allocation of frequency resources for PUSH.

The time domain resource allocation field included in DCI format 0_1 may be used at least to indicate the allocation of time resources for PUSH.

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

If DCI format 0_1 includes a BWP field, the BWP field may be used to indicate the uplink BWP in which the PUSCH is arranged. If DCI format 0_1 does not include a BWP field, the uplink BWP in which the PUSCH is arranged may be the same as the uplink BWP in which the PDCCH including DCI format 0_1 used for scheduling the PUSCH is arranged. If the number of uplink BWPs configured in the terminal device 1 for a certain uplink component carrier is two or more, the number of bits in the BWP field included in DCI format 0_1 used for scheduling the PUSCH to be arranged on the certain uplink component carrier may be one or more. When the number of uplink BWPs set in a terminal device 1 for a certain uplink component carrier is 1, the number of bits in the BWP field included in DCI format 0_1 used for scheduling the PUSH to be placed on the certain uplink component carrier may be 0 bits (or the BWP field may not be included in DCI format 0_1 used for scheduling the PUSH to be placed on the certain uplink component carrier).

The CSI request field is used at least to indicate the reporting of CSI.

If DCI format 0_1 includes a carrier indicator field, the carrier indicator field may be used to indicate the uplink component carrier on which the PUSCH is allocated. If DCI format 0_1 does not include a carrier indicator field, the uplink component carrier on which the PUSCH is allocated may be the same as the uplink component carrier on which the PDCCH including DCI format 0_1 used for scheduling the PUSCH is allocated. If the number of uplink component carriers configured in the terminal device 1 in a certain serving cell group is two or more (if uplink carrier aggregation is operated in a certain serving cell group), the number of bits of the carrier indicator field included in DCI format 0_1 used for scheduling the PUSCH allocated to the certain serving cell group may be one bit or more (e.g., three bits). When the number of uplink component carriers configured for a terminal device 1 in a certain serving cell group is 1 (when uplink carrier aggregation is not operated in a certain serving cell group), the number of bits in the carrier indicator field included in DCI format 0_1 used for scheduling the PUSH placed in the certain serving cell group may be 0 bits (or the carrier indicator field may not be included in DCI format 0_1 used for scheduling the PUSH placed in the certain serving cell group).

DCI format 1_0 is used at least for scheduling a PDSCH of a certain cell (located in a certain cell), and is configured to include at least some 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 to HARQ feedback timing indicator field
3F) PUCCH resource indicator field

The DCI format specific field included in DCI format 1_0 may indicate 1 (or may indicate that DCI format 1_0 is a downlink DCI format).

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

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

The MCS field included in DCI format 1_0 may be used to indicate at least some or all of the modulation scheme and/or target coding rate for the PDSCH. The target coding rate may be the target coding rate for the transport block of the PDSCH. The size of the transport block (TBS) of the PDSCH may be determined based on at least some or all of the target coding rate and the modulation scheme for the PDSCH.

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

The PUCCH resource indication field may be a field indicating the index of one or more PUCCH resources included in a 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. In other words, the downlink component carrier on which the PDSCH scheduled by DCI format 1_0 is allocated may be the same as the downlink component carrier on which the PDCCH including DCI format 1_0 is allocated.

DCI format 1_0 may not include a BWP field. In other words, the downlink BWP in which the PDSCH scheduled by DCI format 1_0 is placed may be the same as the downlink BWP in which the PDCCH including DCI format 1_0 is placed.

DCI format 1_1 is used at least for scheduling a PDSCH of a certain cell (or configured in a certain cell), and is configured to include at least some 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 (or may indicate that DCI format 1_1 is a downlink DCI format).

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

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

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

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

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

If DCI format 1_1 includes a BWP field, the BWP field may be used to indicate the downlink BWP in which the PDSCH is arranged. If DCI format 1_1 does not include a BWP field, the downlink BWP in which the PDSCH is arranged may be the same as the downlink BWP in which the PDCCH including DCI format 1_1 used for scheduling the PDSCH is arranged. If the number of downlink BWPs configured in the terminal device 1 for a certain downlink component carrier is two or more, the number of bits in the BWP field included in DCI format 1_1 used for scheduling the PDSCH arranged for the certain downlink component carrier may be one or more. If the number of downlink BWPs configured in the terminal device 1 for a certain downlink component carrier is one, the number of bits in the BWP field included in DCI format 1_1 used for scheduling the PDSCH arranged for the certain downlink component carrier may be zero (or the BWP field may not be included in DCI format 1_1 used for scheduling the PDSCH arranged for the certain downlink component carrier).

If 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 allocated. If DCI format 1_1 does not include a carrier indicator field, the downlink component carrier on which the PDSCH is allocated may be the same as the downlink component carrier on which the PDCCH including DCI format 1_1 used for scheduling the PDSCH is allocated. If the number of downlink component carriers configured in the terminal device 1 in a serving cell group is two or more (if downlink carrier aggregation is operated in a serving cell group), the number of bits of the carrier indicator field included in DCI format 1_1 used for scheduling the PDSCH allocated to the serving cell group may be one bit or more (e.g., three bits). When the number of downlink component carriers configured for a terminal device 1 in a certain serving cell group is 1 (when downlink carrier aggregation is not operated in a certain serving cell group), the number of bits in the carrier indicator field included in DCI format 1_1 used for scheduling the PDSCH placed in the certain serving cell group may be 0 bits (or the carrier indicator field may not be included in DCI format 1_1 used for scheduling the PDSCH placed in the certain serving cell group).

The PDSCH may be used to transmit a transport block. The PDSCH may be used to transmit a transport block corresponding to the DL-SCH. The PDSCH may be used to transmit a transport block. The PDSCH may be used to transmit a transport block corresponding to the DL-SCH. The transport block may be placed in the PDSCH. The 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.

The downlink physical signal may correspond to a set of resource elements. The downlink physical signal may not carry information generated in a higher layer. The downlink physical signal may be a physical signal used in a downlink component carrier. The downlink physical signal may be transmitted by a base station device 3. The downlink physical signal may be transmitted by a terminal device 1. In a wireless communication system according to one aspect of 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 at least by the terminal device 1 to synchronize the frequency domain and/or time domain of the downlink. The synchronization signal is a general term for the PSS (Primary Synchronization Signal) and the SSS (Secondary Synchronization Signal).

7 is a diagram showing an example of the configuration of an SS/PBCH block according to one aspect of this embodiment. In FIG. 7, the horizontal axis represents the time axis (OFDM symbol index l _sym ), and the vertical axis represents the frequency domain. The diagonally shaded blocks represent sets of resource elements for the PSS. The grid-lined blocks represent sets of resource elements for the SSS. The horizontally shaded blocks represent sets of resource elements for the PBCH and DMRS for the PBCH (DMRS associated with the PBCH, DMRS included in the PBCH, and DMRS corresponding to the PBCH).

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

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

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

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

The set of antenna ports for DMRS for a PDSCH (DMRS associated with a PDSCH, DMRS included in a PDSCH, DMRS corresponding to a PDSCH) may be determined based on the set of antenna ports for the PDSCH. In other words, the set of antenna ports for DMRS for a PDSCH may be the same as the set of antenna ports for the PDSCH.

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

The PDSCH may be estimated from the DMRS for the PDSCH. That is, the propagation path of the PDSCH may be estimated from the DMRS for the PDSCH. If a set of resource elements on which a certain PDSCH symbol is transmitted and a set of resource elements on which a DMRS symbol for the certain PDSCH is transmitted are included in the same precoding resource group (PRG), the PDSCH on which the PDSCH symbol is transmitted at a certain antenna port may be estimated from the DMRS for the PDSCH.

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

The PDCCH may be estimated from the DMRS for the PDCCH. That is, the propagation path of the PDCCH may be estimated from the DMRS for the PDCCH. If the same precoder is applied (assumed to be applied, assumed to be applied) to the set of resource elements on which a certain PDCCH symbol is transmitted and the set of resource elements on which a DMRS symbol for the certain PDCCH is transmitted, the PDCCH on which the PDCCH symbol for a certain antenna port is transmitted may be estimated by the DMRS for the PDCCH.

BCH (Broadcast CHannel), UL-SCH (Uplink-Shared CHannel), and DL-SCH (Downlink-Shared CHannel) are transport channels. Channels used in the MAC layer are called transport channels. The unit of transport channel used in the MAC layer is also called a transport block (TB) or MAC PDU (Protocol Data Unit). In the MAC layer, HARQ (Hybrid Automatic Repeat reQuest) control is performed for each transport block. A transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, transport blocks are mapped to codewords, and modulation processing is performed for each codeword.

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

The BCCH (Broadcast Control CHannel), CCCH (Common Control CHannel), and DCCH (Dedicated Control CHannel) are logical channels. For example, the BCCH is an RRC layer channel used to transmit MIB or system information. The CCCH (Common Control CHannel) may also be used to transmit RRC messages common to multiple terminal devices 1. Here, the CCCH may be used, for example, for terminal devices 1 that are not RRC-connected. The DCCH (Dedicated Control CHannel) may also be used at least to transmit RRC messages dedicated to terminal devices 1. Here, the DCCH may be used, for example, for terminal devices 1 that are RRC-connected.

An RRC message includes one or more RRC parameters (information elements). For example, an RRC message may include an MIB. An RRC message may also include system information. An RRC message may also include a message corresponding to a CCCH. An RRC message including a message corresponding to a DCCH is also referred to as an individual RRC message.

The BCCH in the logical channel may be mapped to the BCH or DL-SCH in the transport channel. The CCCH in the logical channel may be mapped to the DL-SCH or UL-SCH in the transport channel. The DCCH in the logical channel may be mapped to the DL-SCH or UL-SCH in the transport channel.

The UL-SCH in the transport channel may be mapped to the PUSCH in the physical channel. The DL-SCH in the transport channel may be mapped to the PDSCH in the physical channel. The BCH in the transport channel may be mapped to the PBCH in the physical channel.

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

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

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

The PSS sequence is assigned based at least on the physical cell ID. The SSS sequence is assigned based at least on the physical cell ID.

SS/PBCH block candidates indicate resources on which transmission of SS/PBCH blocks is allowed (possible, reserved, configured, specified, possible).

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

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

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

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

Message 2 is a procedure in which the terminal device 1 attempts to detect DCI format 1_0 with a CRC (Cyclic Redundancy Check) scrambled with the RA-RNTI (Random Access - Radio Network Temporary Identifier). The terminal device 1 attempts to detect a PDCCH including this 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 cell search, and in the resources indicated based on the setting of the search space set. Message 2 is also referred to as a random access response.

Message 3 is a procedure for transmitting a PUSCH scheduled by the 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 a MAC CE included in the PDSCH scheduled by DCI format 1_0.

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

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

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

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

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

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

The set of resource blocks that constitute the control resource set may be indicated by higher layer parameters. The number of OFDM symbols that constitute the control resource set may be indicated by higher layer parameters.

The terminal device 1 attempts to detect a PDCCH in a search space set. Here, attempting to detect a PDCCH in a search space set may mean attempting to detect a PDCCH candidate in the search space set, or attempting to detect a DCI format in the search space set, or attempting to detect a PDCCH in a control resource set, or attempting to detect a PDCCH candidate in the control resource set, or attempting to detect a DCI format in the control resource set.

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

The Type 0 PDCCH common search space set may be used as the common search space set with index 0. The Type 0 PDCCH common search space set may be the common search space set with index 0.

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

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

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

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

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

In Figure 8, blocks indicated by grid lines represent search area set 91, blocks indicated by diagonal lines going up to the right represent search area set 92, blocks indicated by diagonal lines going up to the left represent search area set 93, and blocks indicated by horizontal lines represent search area set 94.

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

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

The monitoring interval of search area set 93 is set to 2 slots, the monitoring offset of search area set 93 is set to 0 slots, and the monitoring pattern of search area set 93 is set to [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 8th OFDM symbol (OFDM symbol #7) in each of the even slots.

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

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

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

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

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

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

The UE-specific PDCCH search area set may be used at least for DCI formats with CRC sequences scrambled by the 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. Based on the PUCCH resource indicated based on the detected downlink DCI format, the terminal device 1 reports a HARQ-ACK corresponding to the PDSCH (a HARQ-ACK corresponding to the transport block included in the PDSCH) to the base station device 3.

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 configured scheduling (configured grant), the uplink grant for scheduling the PUSCH is configured for each transmission period of the PUSCH. When the PUSCH is scheduled using an uplink DCI format, some or all of the information indicated by the uplink DCI format may be indicated by the uplink grant configured in the case of configured scheduling.

The terminal device 1 may be provided with one or more PUCCH resources by a higher layer. The terminal device 1 may be allocated one or more PUCCH resources for one PUCCH transmission. The PUCCH resource may be determined based on at least some or all of elements P1 to P5. P1) PUCCH format index P2) PUCCH first OFDM symbol index P3) PUCCH OFDM symbol number P4) PUCCH first resource block index P5) PUCCH resource block number M ^PUCCH _RB

For example, one PUCCH transmission may be a PUCCH transmission triggered by one DCI.

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 format 0 (or PUCCH-format 0), the PUCCH may correspond to PUCCH format 0. If format is format 1 (or PUCCH-format 1), the PUCCH may correspond to PUCCH format 1. If format is format 2 (or PUCCH-format 2), the PUCCH may correspond to PUCCH format 2. If format is format 3 (or PUCCH-format 3), the PUCCH may correspond to PUCCH format 3. When the format is format 4 (or PUCCH-format 4), the PUCCH may be compatible with PUCCH format 4.

For example, a certain PUCCH corresponding to a certain PUCCH format may mean that the certain PUCCH is configured by the certain PUCCH format. Furthermore, a certain PUCCH corresponding to a certain PUCCH format may mean that the certain PUCCH is generated based on the certain PUCCH format. Here, the PUCCH format may include at least some or all of the PUCCH scrambling method, PUCCH modulation scheme settings, PUCCH time domain resource settings, PUCCH frequency domain settings, and DMRS settings for the PUCCH.

The index of the first OFDM symbol of the PUCCH may be the index of the first OFDM symbol to which the PUCCH is mapped. The index of the first OFDM symbol of the 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 the PUCCH may be the number of OFDM symbols to which the PUCCH is mapped. The number of OFDM symbols for the 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 the PUCCH is mapped. The number of PUCCH resource blocks M ^PUCCH _RB 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 or less than the number of PUCCH resource blocks M ^PUCCH _RB .

When the PUCCH format for the PUCCH is PUCCH format 2 or PUCCH format 3 and the PUCCH includes at least one or both of HARQ-ACK and SR, the number of PUCCH resource blocks M ^PUCCH _RB,min may be determined based at least on Equation 1 and/or Equation 2. The number of PUCCH resource blocks M ^PUCCH _RB,min may be determined based at least on the number of PUCCH resource blocks M ^PUCCH _RB being greater than 1, and based at least on both Equation 1 and Equation 2.

N _UCI may correspond to the number of uplink control information bits.

N ^RB _SC,ctrl may be determined based on the number of subcarriers per resource block, N ^RB _SC . N ^RB _SC,ctrl for PUCCH format 2 may be given as 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 as 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 the PUCCH is mapped. 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 may be the value given by nrofSymbols in the higher layer parameter PUCCH-format3 minus the number of OFDM symbols used in DMRS transmission for PUCCH format 3. N ^PUCCH _symb-UCI for PUCCH format 4 may be the value given by nrofSymbols in the higher layer parameter PUCCH-format4 minus the number of OFDM symbols used in DMRS transmission for PUCCH format 4.

_Qm may correspond to the modulation order of the PUCCH.

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

In PUCCH format 1, 3, or 4, the number of slots N ^repeat _PUCCH may be configured for repetition of PUCCH transmission. N ^repeat _PUCCH may be determined by the higher layer parameter nrofSlots for PUCCH.

Based at least on N ^repeat _PUCCH being greater than 1, the terminal device 1 may repeat PUCCH transmission including UCI in N ^repeat _PUCCH slots. The PUCCH transmission in each of the N ^repeat _PUCCH slots may have the same number of OFDM symbols and the same starting OFDM symbol index. The number of OFDM symbols may be given by an upper 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 an upper layer parameter startingSymbolIndex corresponding to the PUCCH format selected by the PUCCH format index.

A PUCCH corresponding to PUCCH format 1, 3, or 4 may be configured to perform frequency hopping between different slots based at least on repeated transmission of the PUCCH in N ^repeat _PUCCH slots. The frequency hopping may be performed slot-by-slot, and the PUCCH may be transmitted based on a first PRB in even-numbered slots and based on a second PRB in odd-numbered slots. The first PRB may be given by the upper layer parameter StartingPRB, and the second PRB may be given by the upper layer parameter SecondHopPRB. Starting with the slot designated for the initial transmission of the PUCCH as slot 0, each subsequent slot up to the transmission of the PUCCH in the N ^repeat _PUCCH slots may be counted regardless of whether the terminal device 1 transmits the PUCCH.

The terminal device 1 does not need to expect that frequency hopping will be performed for PUCCH transmission within a certain slot, based at least on the fact that PUCCH transmission including UCI is repeated in N ^repeat _PUCCH slots and that frequency hopping is configured to be performed between different slots for PUCCH transmission.

Based at least on the fact that PUCCH transmission including UCI is repeated in N ^repeat _PUCCH slots, that frequency hopping between different slots is not configured for PUCCH transmission, and that frequency hopping within a slot is configured for PUCCH transmission, 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.

The number of OFDM symbols in the PUCCH corresponding to PUCCH format 0 may be 1 or 2. The UCI payload in the PUCCH corresponding to PUCCH format 0 may be 1 bit or 2 bits. PUCCH format 0 may be based on sequence selection.

In a certain PUCCH format, a sequence x(n) may be mapped to a set (k, l) _p,μ of resource elements for the PUCCH corresponding to the certain PUCCH format in order starting from x(0). For example, the certain PUCCH format may be PUCCH format 0. k may be a subcarrier index for the PUCCH. l may be an OFDM symbol index for the PUCCH. n in the sequence x(n) may be an index indicating the nth element of the sequence x(n).

The sequence x(n) may be referred to as a modulation symbol sequence, i.e., a sequence that is mapped to a set of resource elements, and may be generated based at least on Equation 3.

In PUCCH format 0, n in Equation 3 may be an integer from 0 to N ^RB _sc −1. Also, when the number of OFDM symbols for PUCCH corresponding to PUCCH format 0 is 1, l in Equation 3 may be 0. Also, when the number of OFDM symbols for PUCCH corresponding to PUCCH format 0 is 2, l in Equation 3 may be an integer from 0 to 1.

r _u,v (n) may be a base sequence (or base sequence). α may be a cyclic shift value. That is, the modulation symbol sequence may be generated by applying a cyclic shift to the base sequence. u in _{r u,v} (n) may be a group number (or group number). For example, the group number u may be an integer from 0 to 29. v in _{r u,v} (n) may be a base sequence number (or base sequence number) corresponding to the group number.

When the group number u is an integer between 0 and 29, it may be determined based on Equation 4.

The parameter _{f_gh} may be determined based at least on the higher layer parameter pucch-GroupHopping, and the parameter _{f_ss} may be determined based at least on the higher layer parameter hoppingId or a physical cell ID.

The cyclic shift α for the PUCCH may be determined based on Equation 5. The cyclic shift may be a value from 0 to N ^RB _sc −1. That is, the cyclic shift may have N ^RB _sc values. Furthermore, applying N ^RB _sc cyclic shifts to one base sequence may result in generating N ^RB _sc modulation symbol sequences.

The l in Equation 5 may be an OFDM symbol index for PUCCH transmission. When l in Equation 5 is 0, it may correspond to the first OFDM symbol in PUCCH transmission. When l' in Equation 5 is 0, it may correspond to the first OFDM symbol in a slot. Furthermore, l' in Equation 5 may be an OFDM symbol index corresponding to the first OFDM symbol for PUCCH transmission.

_{m_0} may be a predetermined value. _{m_0} may be an offset value of the sequence cyclic shift. _{min_int} may be a predetermined value. _{min_int} may be an initial value of the sequence cyclic shift. _{min_int} may be 0 when the higher layer parameter useInterlacePUCCH-PUSCH is not configured. The predetermined value in this embodiment may not depend on the OFDM symbol index and the subcarrier index.

_mcs may be used to determine at least the value of the cyclic shift. _mcs may also be referred to as sequence cyclic shift (also referred to as sequence cyclic shift). That is, the cyclic shift may be determined at least based on the sequence cyclic shift. _mcs may also be determined at least based on the PUCCH format. Furthermore, _mcs may correspond to some or all of the values of the uplink control information. For example, in the case of PUCCH format 0, _mcs may correspond to some or all of the values of the uplink control information transmitted by the PUCCH corresponding to PUCCH format 0. _mcs may be a value from 0 to 11. That is, _mcs may correspond to 12 different values of the uplink control information. The correspondence of _mcs to some or all of the values of the uplink control information may mean that the cyclic shift values substituted by _mcs correspond to some or all of the values of the uplink control information. That is, the cyclic shift values may correspond to some or all of the values of the uplink control information.

For example, assume that the uplink control information of the PUCCH corresponding to PUCCH format 0 includes HARQ-ACK information. If the HARQ-ACK information is 1 bit and the value of the 1 bit is 0, m _cs may be 0. If the value of the 1 bit is 1, m _cs may be 6. If the HARQ-ACK information is 2 bits and the value of the 2 bits is {0,0}, m _cs may be 0. If the value of the 2 bits is {0,1}, m _cs may be 3. If the value of the 2 bits is {1,1}, m _cs may be 6. If the value of the 2 bits is {1,0}, m _cs may be 9.

n _cs (n ^μ _s,f ,l+l′) may be determined based on Equation 6.

c(i) may be a pseudo-random sequence. The i in c(i) may be an index indicating the i-th element of c(i).

Figure 9 is a diagram showing an example of mapping a modulation symbol sequence for a PUCCH to a set of resource elements according to one aspect of this embodiment. In Figure 9, the horizontal axis represents the time domain. In an uplink BWP on an uplink carrier 900, a modulation symbol sequence 910 for a PUCCH 960 is mapped to an OFDM symbol 920, a modulation symbol sequence 911 for a PUCCH 960 is mapped to an OFDM symbol 921, and a modulation symbol sequence 912 for a PUCCH 960 is mapped to an OFDM symbol 922. The modulation symbol sequence 910 is generated at least based on applying a cyclic shift 940 to a base sequence 930. The modulation symbol sequence 911 is generated at least based on applying a cyclic shift 941 to a base sequence 931. The modulation symbol sequence 912 is generated at least based on applying a cyclic shift 942 to a base sequence 932. The cyclic shift 940 may be determined based at least on the sequence cyclic shift 950. The cyclic shift 941 may be determined based at least on the sequence cyclic shift 951. The cyclic shift 942 may be determined based at least on the sequence cyclic shift 952. The cyclic shift 940 may be determined based on Equation 5 using at least the sequence cyclic shift 950. The cyclic shift 941 may be determined based on Equation 5 using at least the sequence cyclic shift 951. The cyclic shift 942 may be determined based on Equation 5 using at least the sequence cyclic shift 952.

Mapping modulation symbol sequence 910 to OFDM symbol 920 may mean that modulation symbol sequence 910 is mapped to a first set of resource elements in OFDM symbol 920. Mapping modulation symbol sequence 911 to OFDM symbol 921 may mean that modulation symbol sequence 911 is mapped to a second set of resource elements in OFDM symbol 921. Mapping modulation symbol sequence 912 to OFDM symbol 922 may mean that modulation symbol sequence 912 is mapped to a third set of resource elements in OFDM symbol 922. The first set of resource elements, the second set of resource elements, and the third set of resource elements may be different sets of resource elements. At least some of the first set of resource elements, the second set of resource elements, and the third set of resource elements may be the same set.

For example, OFDM symbol 920, OFDM symbol 921, and OFDM symbol 922 may be consecutive to one another. Also, OFDM symbol 920, OFDM symbol 921, and OFDM symbol 922 may be OFDM symbols in different slots.

For example, base series 930, base series 931, and base series 932 may be the same base series. That is, base series 930, base series 931, and base series 932 may include the same group number and the same base series number.

For example, the values of cyclic shift 940, cyclic shift 941, and cyclic shift 942 may be different from one another. The values of sequence cyclic shift 950, sequence cyclic shift 951, and sequence cyclic shift 952 may be different from one another. Furthermore, some or all of the values of the uplink control information transmitted on PUCCH 960 may correspond to the values of sequence cyclic shift 950, sequence cyclic shift 951, and sequence cyclic shift 952. In other words, some or all of the values of the uplink control information transmitted on PUCCH 960 may correspond to the values of cyclic shift 940, cyclic shift 941, and cyclic shift 942.

The modulation symbol sequence 910 may be generated based on Equation 3 using at least a base sequence 920 and a cyclic shift 930. The modulation symbol sequence 911 may be generated based on Equation 3 using at least a base sequence 921 and a cyclic shift 931. The modulation symbol sequence 912 may be generated based on Equation 3 using at least a base sequence 922 and a cyclic shift 932.

Cyclic shift 940 may be determined based on Equation 5 using sequence cyclic shift 950. Cyclic shift 941 may be determined based on Equation 5 using sequence cyclic shift 951. Cyclic shift 942 may be determined based on Equation 5 using sequence cyclic shift 952.

For example, assume that the value of the uplink control information corresponds to the value of the sequence cyclic shift. If the uplink control information is 1 bit, the value of the 1 bit is 0 or 1, so in order to identify the 0 or 1, the sequence cyclic shift has at least 2 ¹ = 2 different values. If the uplink control information is 2 bits, the values of the 2 bits are {0,0}, {0,1}, {1,1}, {1,0}, so the sequence cyclic shift has at least 2 ² = 4 different values. In other words, if the uplink control information is n bits, the sequence cyclic shift has at least 2 ⁿ different values, where n is an integer greater than or equal to 1.

The cyclic shift in Equation 5 can have N ^RB _sc =12 values. Therefore, when the value of the uplink control information corresponds to the value of the sequence cyclic shift, the uplink control information does not support 4-bit transmission. For example, means 1, 2, and 3 for extending the correspondence between the value of the uplink control information and the value of the sequence cyclic shift may be used to solve the above problem.

In means 1, the terminal device 1 may correspond some or all of the values of the uplink control information transmitted on PUCCH 960 to the difference between the value of sequence cyclic shift 950 and the value of sequence cyclic shift 951. In addition, in means 1, the value of sequence cyclic shift 950 may also correspond to some or all of the values of the uplink control information transmitted on PUCCH 960.

In the means 1, when the value of the sequence cyclic shift 950 is m _cs,950 , the value of the sequence cyclic shift ₉₅₁ may be determined based on Equation 7.

m _cs,950 may be any value from 0 to m _cs,max -1. _{m cs,950} may have any value equal to or less than m _cs,max . _{m cs,951} may be any value from 0 to m _cs,max -1. _{m cs,951} may have any value equal to or less than m _cs,max . For example, when m _cs,max is 12, m _cs,950 and m _cs,951 may have six different values. Furthermore, the six different values may be any of 0, 2, 4, 6, 8, and 10. For example, when m _cs,max is 12, m _cs,950 and m _cs,951 may have four different values. Furthermore, the four different values may be any of 0, 3, 6, and 9. For example, when m _cs,max is 12, m _cs,950 and m _cs,951 may have three different values. Furthermore, the three different values may be any of 0, 4, and 8. For cyclic shift detection accuracy, m _cs,max may be limited. m _cs,max may be given by a higher layer parameter. Furthermore, m _cs,max may be given by a DCI format. For example, m _cs,max may be 12. Alternatively, m _cs,max may be 6. Alternatively, m _cs,max may be 4. Alternatively, m _cs,max may be 3. The first means may associate some or all of the values of the uplink control information transmitted on the PUCCH 960 with m _cs,add . Here, m _cs,add may be any value from 0 to m _cs,max - 1. Or, m _cs,add may be any value from 1 to m _cs,max . That is, m _cs,add may have values equal to or less than m _cs,max . For example, when m _cs,max is 12, m _cs,add may have six values. Furthermore, the six values may be any of 0, 2, 4, 6, 8, and 10. For example, when m _cs,max is 12, m _cs,add may have four values. Furthermore, the four values may be any of 0, 3, 6, and 9. For example, when m _cs,max is 12, m _cs,add may have three values. Furthermore, the three values may be any of 0, 4, and 8.

FIG. 10 is a diagram showing an example in which values of 4-bit uplink control information according to one aspect of the present embodiment correspond to combinations of values of parameters X and Y. X may have _Xmax values. For example, _Xmax may be 12. Alternatively, _Xmax may be 6. Alternatively, _Xmax may be 4. Alternatively, _Xmax may be 3. Y may have Ymax values. For example, _Ymax may be _12. Alternatively, _Ymax may be 6. Alternatively, Ymax may be 4. Alternatively, _Ymax may be _3. That is, in FIG. 10 , the combinations may correspond to uplink control information values equal to or less than _Xmax × _Ymax .

In FIG. 10 , the value '0000' of the uplink control information may correspond to X=0, Y=0. The value '0001' of the uplink control information may correspond to X=0, Y=1. The value '0010' of the uplink control information may correspond to X=0, Y=2. The value '0011' of the uplink control information may correspond to X=0, Y=3. The value '0100' of the uplink control information may correspond to X=0, Y=4. The value '0101' of the uplink control information may correspond to X=0, Y=5. The value '0110' of the uplink control information may correspond to X=0, Y=6. The value '0111' of the uplink control information may correspond to X=0, Y=7. The value '1000' of the uplink control information may correspond to X=0, Y=8. Furthermore, the value '1001' of the uplink control information may correspond to X=0, Y=9. Furthermore, the value '1010' of the uplink control information may correspond to X=0, Y=10. Furthermore, the value '1011' of the uplink control information may correspond to X=0, Y=11. Furthermore, the value '1100' of the uplink control information may correspond to X=1, Y=0. Furthermore, the value '1101' of the uplink control information may correspond to X=1, Y=1. Furthermore, the value '1110' of the uplink control information may correspond to X=1, Y=2. Furthermore, the value '1111' of the uplink control information may correspond to X=1, Y=3.

In the means 1, some or all of the values of the uplink control information transmitted on the PUCCH 960 may correspond to a combination of m _cs,950 and m _cs,add . That is, the combinations may be m ² _cs,max or less. For example, when some or all of the uplink control information is 4 bits, X may be m _cs,950 and Y may be m _cs,add . Furthermore, some or all of the values of the uplink control information transmitted on the PUCCH 960 may be composed of a first part and a second part. In the means 1, the first part may correspond to m _cs,950 and m _cs,add , and the second part may correspond to m _cs,950 and m _cs,add .

In the means 1, some or all of the values of the uplink control information transmitted on the PUCCH 960 may correspond to a combination of m _cs,950 and m _cs,951 . That is, the combinations may be m ² _cs,max or less. For example, when some or all of the uplink control information is 4 bits, X may be m _cs,950 and Y may be m _cs,951 . Furthermore, some or all of the values of the uplink control information transmitted on the PUCCH 960 may be composed of a first part and a second part. In the means 1, the first part may correspond to m _cs,950 and m _cs,951 , and the second part may correspond to m _cs,950 and m _cs,951 .

FIG. 11 is a diagram showing an example in which values of 4-bit uplink control information according to one aspect of the present embodiment correspond to combinations of values of parameters X', Y', and Z'. X' may have _Xmax values. Y' may have _Ymax values. Z' may have _Zmax values. For example, _Zmax may be 12. Alternatively, _Zmax may be 6. Alternatively, Zmax may be 4. Alternatively, _Zmax may be 3. That is, in FIG. 11 _, the combinations may correspond to uplink control information values equal to or less than _Xmax × _Ymax × _Zmax .

In FIG. 11 , the value '0000' of the uplink control information may correspond to X' = 0, Y' = 0, Z' = 0. Furthermore, the value '0001' of the uplink control information may correspond to X' = 0, Y' = 0, Z' = 1. Furthermore, the value '0010' of the uplink control information may correspond to X' = 0, Y' = 0, Z' = 2. Furthermore, the value '0011' of the uplink control information may correspond to X' = 0, Y' = 1, Z' = 0. Furthermore, the value '0100' of the uplink control information may correspond to X' = 0, Y' = 1, Z' = 1. Furthermore, the value '0101' of the uplink control information may correspond to X' = 0, Y' = 1, Z' = 2. Furthermore, the value '0110' of the uplink control information may correspond to X' = 0, Y' = 2, Z' = 0. Furthermore, the value '0111' of the uplink control information may correspond to X'=0, Y'=2, and Z'=1. Furthermore, the value '1000' of the uplink control information may correspond to X'=0, Y'=2, and Z'=2. Furthermore, the value '1001' of the uplink control information may correspond to X'=1, Y'=0, and Z'=0. Furthermore, the value '1010' of the uplink control information may correspond to X'=1, Y'=0, and Z'=1. Furthermore, the value '1011' of the uplink control information may correspond to X'=1, Y'=0, and Z'=2. Furthermore, the value '1100' of the uplink control information may correspond to X'=1, Y'=1, and Z'=0. Furthermore, the value '1101' of the uplink control information may correspond to X'=1, Y'=1, and Z'=1. Furthermore, the value '1110' of the uplink control information may correspond to X' = 1, Y' = 1, and Z' = 2. Furthermore, the value '1111' of the uplink control information may correspond to X' = 1, Y' = 2, and Z' = 0.

For example, when the value of the nth sequence cyclic shift is m _cs,cmb (n), some or all of the values of the uplink control information transmitted on PUCCH 960 may be associated with combinations of values m _cs,cmb (1) to m _cs,cmb (N). Here, n may be an integer from 1 to N, or N may be an integer greater than 1. That is, when m _cs,cmb (n) has m _cs,cmb,max values, the combinations may be m ^N _cs,cmb,max combinations. For example, based on at least a first condition, X may be m _cs,cmb (1) and Y may be m _cs,cmb (2). The first condition may be that some or all of the uplink control information is 4 bits and N is 2. For example, based on at least a second condition, X' may be m _cs,cmb (1), Y' may be m _cs,cmb (2), and Z' may be m _cs,cmb (3). The second condition may be that part or all of the uplink control information is 4 bits, and N is 3.

In the means 1, the value m _cs,952 of the sequence cyclic shift 952 may be determined based on Equation 8.

m _cs,952 may be any value from 0 to m _cs,max -1. _{m cs,952} may have a value equal to or less than m _cs,max . For example, when m _cs,max is 12, m _cs,952 may have six values. The six values may be any of 0, 2, 4, 6, 8, and 10. For example, when m _cs,max is 12, m _cs,952 may have four values. The four values may be any of 0, 3, 6, and 9. For example, when m _cs,max is 12, m _cs,952 may have three values. The three values may be any of 0, 4, and 8. m' _cs,add may be the same as or different from m _cs,add . That is, the means 1 may correspond some or all of the values of the uplink control information transmitted by the PUCCH 960 to m _cs,add and m′ _cs,add . Furthermore, the means 1 may correspond some or all of the values of the uplink control information transmitted by the PUCCH 960 to the difference between m _cs,add and m′ _cs,add . The difference m _{cs, add,add between} m _{cs,add and m′ cs,add} may be determined based on Equation 9.

In other words, in means 1, the terminal device 1 may correspond some or all of the values of the uplink control information transmitted in PUCCH 960 to a pattern of the difference between the value of sequence cyclic shift 950 and the value of sequence cyclic shift 951, and the difference between the value of sequence cyclic shift 951 and the value of sequence cyclic shift 952.

For example, if the difference between the value of the nth sequence cyclic shift and the value of the (n+1)th sequence cyclic shift is m _cs,add (n), some or all of the values of the uplink control information transmitted on PUCCH 960 may be associated with combinations of the values of m _cs,add (1) to m _cs,add (N-1). That is, if m _cs,add (n) has m _cs,add,max values, the combinations may be m ^N-1 _cs,add,max combinations. Here, n may be an integer from 1 to N, or N may be an integer greater than 1. Furthermore, if the nth sequence cyclic shift is sequence cyclic shift 950 and the (n+1)th sequence cyclic shift is sequence cyclic shift 951, m _cs,add (n) may be determined based on Equation 7 using m _cs,add . For example, based on at least a first condition, X may be m _cs,add (1) and Y may be m _cs,add (2). The first condition may be that part or all of the uplink control information is 4 bits, and N is 3. For example, based on at least a second condition, X' may be m _cs,add (1), Y' may be m _cs,add (2), and Z' may be m _cs,add (3). The second condition may be that part or all of the uplink control information is 4 bits, and N is 4.

For example, the terminal device 1 may retain information regarding the correspondence between some or all values of uplink control information and parameter sets of PUCCHs. Based on the retained information, the terminal device 1 may transmit a PUCCH using a parameter set associated with some or all values of uplink control information transmitted on the PUCCH. For example, the parameter set may be a combination of parameter X and parameter Y. Also, for example, the parameter set may be a combination of parameter X', parameter Y', and parameter Z'.

For example, a set of parameters constituting a parameter set may be determined based at least on the number of bits of some or all of the uplink control information transmitted on the PUCCH. For example, when the number of bits of some or all of the uplink control information transmitted on the PUCCH is _Nth bits or less, the parameter set may be composed of parameter X and parameter Y. Also, when the number of bits of the uplink control information transmitted on the PUCCH exceeds _Nth bits, the parameter set may be composed of parameter X', parameter Y', and parameter Z'. Also, for example, when the number of bits of some or all of the uplink control information transmitted on the PUCCH is _Nth bits or less, the number of parameters constituting the parameter set may be a predetermined value (e.g., 2). Also, when the number of bits of some or all of the uplink control information transmitted on the PUCCH exceeds _Nth bits, the number of parameters constituting the parameter set may be different from the predetermined value.

For example, the base station device 3 may attempt to detect one or more parameters included in the parameter set from the received PUCCH sequence. The base station device 3 may also determine some or all of the uplink control information associated with the combination of the detected one or more parameters. For example, the one or more parameters may be parameter X and parameter Y. The one or more parameters may also be parameter X', parameter Y', and parameter Z'.

In means 2, the terminal device 1 may correspond some or all of the values of the uplink control information transmitted on the PUCCH 960 to the difference between the phase of the modulation symbol sequence 910 and the phase of the modulation symbol sequence 911. This difference may be referred to as the phase shift amount. This difference may be referred to as the phase difference.

In the means 2, when the modulation symbol sequence 910 is x ₉₁₀ (n), the modulation symbol sequence 911 x ₉₁₁ (n) may be determined based at least on Equation 10, where n may be an index indicating the n-th element of x ₉₁₀ (n) and x ₉₁₁ (n).

In the means 2, some or all of the values of the uplink control information transmitted in the PUCCH 960 may correspond to the phase shift amount φ. φ may not depend on n in Equation 10. That is, φ may not depend on the subcarrier index for the PUCCH 960. φ may be a function of the index of the OFDM symbol for the PUCCH 960. For example, φ may be a constant multiple of the index of the OFDM symbol. The calculation of Equation 10 may mean that the sequence x ₉₁₀ (n) is phase-shifted by φ.

In means 2, modulation symbol sequence 912 may be generated by phase-shifting modulation symbol sequence 911 by φ. Alternatively, modulation symbol sequence 912 may be generated by phase-shifting modulation symbol sequence 910 by Lφ. L may be the number of OFDM symbols between OFDM symbol 920 and OFDM symbol 922. For example, if OFDM symbol 920 and OFDM symbol 922 are consecutive, L may be 1.

For example, in the means 2, φ may be determined based on Equation 11, based at least on the fact that φ is a function of the index of the OFDM symbol.

_mps may be any value from 0 to mps _,max -1. That is, _mps may have any of _mps,max values. _mps may be referred to as a phase shift amount index. That is, the phase shift amount may be determined based at least on the phase shift amount index. 1 in Equation 11 may be an index of an OFDM symbol for PUCCH 960. In the means 2, some or all of the values of the uplink control information transmitted on PUCCH 960 may correspond to _mps . For example, when the number of bits of some or all of the values of the uplink control information is N bits, mps _,max may be ^2N .

In means 2, some or all of the values of the uplink control information transmitted on PUCCH 960 may correspond to a combination of m _cs,950 and _mps . That is, the combinations may be the following combinations of m _cs,max × _mps,max . For example, when some or all of the uplink control information is 4 bits, X may be m _cs,950 and Y may be _mps . Furthermore, some or all of the values of the uplink control information transmitted on PUCCH 960 may be composed of a first part and a second part. In means 2, the first part may correspond to m _cs,950 and _mps , and the second part may correspond to m _cs,950 and _mps .

In the means 2, some or all of the values of the uplink control information transmitted by PUCCH 960 may be associated with a phase shift amount index mps _, 910 corresponding to modulated symbol sequence 910, a phase shift amount index _mps,911 corresponding to modulated symbol sequence 911, and a phase shift amount index mps _,912 corresponding to modulated symbol sequence 912. _mps,910 may be any value from 0 to mps _,max -1. _mps,911 may be any value from 0 to mps _,max -1. _mps,912 may be any value from 0 to mps _,max -1. _mps,910 may have any value equal to or less than mps _,max . _mps,911 may have any value equal to or less than mps _,max . mps _,912 may have the following number of values: mps _,max . A phase shift amount φ ₉₁₀ corresponding to modulation symbol sequence 910 may be determined based on at least mps _,910 . A phase shift amount φ ₉₁₁ corresponding to modulation symbol sequence 911 may be determined based on at least mps _,911 . A phase shift amount φ ₉₁₂ corresponding to modulation symbol sequence 912 may be determined based on at least mps _,912 . In means 2, modulation symbol sequence 910 may be generated using at least a base sequence 920, a cyclic shift 930, and φ _910. In means 2, modulation symbol sequence 911 may be generated using at least a base sequence 921, a cyclic shift 931, and φ _911. In means 2, modulation symbol sequence 912 may be generated using at least a base sequence 922, a cyclic shift 932, and φ ₉₁₂ .

In means 2, some or all of the values of the uplink control information transmitted on PUCCH 960 may correspond to a combination of m _cs,950 and mps _,910 . That is, the combinations may be m _cs,max × mps _,max or less. For example, when some or all of the uplink control information is 4 bits, X may be m _cs,950 and Y may be mps _,910 . Furthermore, some or all of the values of the uplink control information transmitted on PUCCH 960 may be composed of a first part and a second part. In means 2, the first part may correspond to m _cs,950 and _mps,910 , and the second part may correspond to m _cs,950 and _mps,910 .

In means 2, some or all of the values of the uplink control information transmitted on PUCCH 960 may correspond to a combination of mps _,910 and mps _,911 . That is, the combinations may be m ² _ps,max or less. For example, when some or all of the uplink control information is 4 bits, X may be mps _,910 and Y may be mps _,911 . Furthermore, some or all of the values of the uplink control information transmitted on PUCCH 960 may be composed of a first part and a second part. In means 2, the first part may correspond to mps _,910 and mps _,911 , and the second part may correspond to _mps,910 and mps _,911 .

For example, when the nth phase shift amount index is m _ps,cmb (n), some or all of the values of the uplink control information transmitted on the PUCCH 960 may be associated with a combination of values of m _ps,cmb (1) to m _ps,cmb (N). Here, n may be an integer from 1 to N, or N may be an integer greater than 1. That is, when m _ps,cmb (n) has m _ps,cmb,max values, the combinations may be ^mN _ps,cmb,max combinations. For example, based on at least a first condition, X may be m _ps,cmb (1) and Y may be m _ps,cmb (2). The first condition may be that some or all of the uplink control information is 4 bits and N is 2. For example, based on at least a second condition, X' may be m _ps,cmb (1), Y' may be m _ps,cmb (2), and Z' may be m _ps,cmb (3). The second condition may be that part or all of the uplink control information is 4 bits, and N is 3.

For example, the base station device 3 may attempt to detect a phase difference between multiple sequences of the received PUCCH. The base station device 3 may also determine some or all of the uplink control information associated with the detected phase difference.

In means 3, the terminal device 1 may associate some or all of the values of the uplink control information transmitted in the PUCCH 960 with the group number u ₉₃₀ of the base sequence 930, the group number u ₉₃₁ of the base sequence 931, and the group number u ₉₃₂ of the base sequence 932. u ₉₃₀ may be any value from 0 to u _max −1. u ₉₃₁ may be any value from 0 to u _max −1. u ₉₃₂ may be any value from 0 to u _max −1. u ₉₃₀ may have the same or fewer values as u _max . u ₉₃₁ may have the same or fewer values as u _max . u ₉₃₂ may have the same or fewer values as u _max . For example, u _max may be 30.

In the means 3, some or all of the values of the uplink control information transmitted on the PUCCH 960 may correspond to a combination of m _cs,950 and u _930. That is, the combinations may be the following combinations of m _cs,max ×u _max . For example, when some or all of the uplink control information is 4 bits, X may be m _cs,950 and Y may be u _930. Furthermore, some or all of the values of the uplink control information transmitted on the PUCCH 960 may be composed of a first part and a second part. In the means 3, the first part may correspond to m _cs,950 and u ₉₃₀ , and the second part may correspond to m _cs,950 and u _930. Y _max in the Y may be 30.

In the means 3, some or all of the values of the uplink control information transmitted on the PUCCH 960 may correspond to a combination of u ₉₃₀ and u _931. That is, the combinations may be u ² _max or less. For example, when some or all of the uplink control information is 4 bits, X may be u ₉₃₀ and Y may be u _931. Also, some or all of the values of the uplink control information transmitted on the PUCCH 960 may be composed of a first part and a second part. In the means 3, the first part may correspond to u ₉₃₀ and u ₉₃₁ , and the second part may correspond to u ₉₃₀ and u _931. X _max in the X may be 30. Y _max in the Y may be 30.

For example, when the group number of the nth base sequence is u _cmb (n), some or all of the values of the uplink control information transmitted on PUCCH 960 may be associated with a combination of the values u _cmb (1) to u _cmb (N). Here, n may be an integer from 1 to N, or N may be an integer greater than 1. That is, when u _cmb (n) has u _cmb,max values, the combinations may be u ^N _cmb,max combinations. For example, based on at least a first condition, X may be u _cmb (1) and Y may be u _cmb (2). The first condition may be that some or all of the uplink control information is 4 bits, and N is 2. For example, based on at least a second condition, X' may be u _cmb (1), Y' may be u _cmb (2), and Z' may be u _cmb (3). The second condition may be that part or all of the uplink control information is 4 bits, and N is 3.

In the third means, the group number u ₉₃₁ of the base sequence 931 may be determined based on Equation 12 using at least u ₉₃₀ and u _max .

In the means 3, some or all of the values of the uplink control information transmitted in the PUCCH 960 may correspond to u _add . That is, in the means 3, some or all of the values of the uplink control information transmitted in the PUCCH 960 may correspond to the difference between the first group number and the second group number. Here, u _add may be any value from 0 to u _max −1. Or, u _add may be any value from 1 to u _max . That is, u _add may have any value equal to or less than u _max .

For example, when the difference between the nth group number and the (n+1)th group number is u _add (n), some or all of the values of the uplink control information to be transmitted on PUCCH 960 may be _associated with combinations of the values of u _add (1) to u add (N-1). That is, when u _add (n) has u _max values, the combinations may be u ^N-1 _max combinations. Here, n may be an integer from 1 to N, or N may be an integer greater than 1. Furthermore, when the nth group number is the group number corresponding to base sequence 930 and the n+1th group number is the group number corresponding to base sequence 931, u _add (n) may be determined as u _add based on Equation 11. For example, based on at least the first condition, X may be u _add (1) and Y may be u _add (2). The first condition may be that part or all of the uplink control information is 4 bits, and N is 3. For example, based at least on the second condition, X' may be u _add (1), Y' may be u _add (2), and Z' may be u _add (3). The second condition may be that part or all of the uplink control information is 4 bits, and N is 4.

Some or all of the values of the uplink information may be associated with a parameter set by combining some or all of means 1, 2, and 3. For example, the parameter set may include a sequence cyclic shift to be applied to one of the OFDM symbols of the PUCCH, a phase shift amount index to be applied to one of the OFDM symbols of the PUCCH, and a group number of a base sequence for one of the OFDM symbols of the PUCCH. For example, a first value of some or all of the uplink information may be associated with a combination of a first value of the sequence cyclic shift, a first value of the phase shift amount index, and a first value of the group number. Furthermore, a second value of some or all of the uplink information may be associated with a combination of a second value of the sequence cyclic shift, a second value of the phase shift amount index, and a second value of the group number. Here, at least one of 1) the first and second values of the sequence cyclic shift, 2) the first and second values of the phase shift amount index, and 3) the first and second values of the group number may be different values.

For example, the parameter set may include at least the difference between the nth sequence cyclic shift and the (n+1)th sequence cyclic shift. The parameter set may also include at least the difference between the phase of the nth modulation symbol sequence and the phase of the (n+1)th modulation symbol sequence. The parameter set may also include at least the difference between the nth group number and the (n+1)th group number.

The following describes various aspects of the device relating to one aspect of this embodiment.

(1) In order to achieve the above object, aspects of the present invention provide the following: That is, a first aspect of the present invention is a terminal device, comprising: a generation unit that generates a first modulation symbol sequence and a second modulation symbol sequence; and a transmission unit that transmits the first modulation symbol sequence and the second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first cyclic shift to a first base sequence, and the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence, and the first modulation symbol sequence is a modulation symbol sequence on the PUCCH. The PUCCH may further include a processor configured to associate some or all of the values of uplink control information transmitted on the PUCCH with at least a difference between the first sequence cyclic shift value and the second sequence cyclic shift value. The processor may associate some or all of the values of uplink control information transmitted on the PUCCH with at least a combination of the first sequence cyclic shift value and the difference. Furthermore, the difference may be determined based on Equation 7 as m _cs,add . When the difference is determined based on Equation 7, the value of the first sequence cyclic shift may be m _cs,950 and the value of the second sequence cyclic shift may be m _cs,951 .

(2) Also, a second aspect of the present invention is a terminal device comprising: a generation unit that generates an n-th modulation symbol sequence; and a transmission unit that transmits the n-th modulation symbol sequence on a PUCCH, wherein the n-th modulation symbol sequence is generated based at least on an n-th base sequence being subjected to an n-th cyclic shift; the n-th modulation symbol sequence is mapped to an n-th set of resource elements in the PUCCH; the n-th cyclic shift is determined at least based on the n-th sequence cyclic shift, where n is an integer from 1 to N and N is an integer greater than 1; a difference between a value of the n-th sequence cyclic shift and a value of the n+1-th sequence cyclic shift is m _cs,add (n); and the terminal device comprises a processing unit that associates some or all of the values of uplink control information transmitted on the PUCCH with at least a combination of values of m _cs,add (1) to m _cs,add (N-1). Furthermore, the m _cs,add (n) may be determined as m _cs,add based on Equation 7. When the m _cs,add (n) is determined based on Equation 7, the value of the nth sequence cyclic shift may be m _cs,950 , and the value of the n+1th sequence cyclic shift may be m _cs,951 .

(3) A third aspect of the present invention is a terminal device comprising: a generation unit that generates a first modulation symbol sequence and a second modulation symbol sequence; and a transmission unit that transmits the first modulation symbol sequence and the second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first cyclic shift to a first base sequence, the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence, and the first modulation symbol sequence is generated based on applying a second cyclic shift to a second base sequence. the first modulation symbol sequence is mapped to a first set of resource elements in the PUCCH, the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH, the first cyclic shift is determined based at least on a first sequence cyclic shift, and the second cyclic shift is determined based at least on a second sequence cyclic shift, and the PUCCH further includes a processing unit that maps some or all of the values of uplink control information transmitted on the PUCCH to at least a combination of the first sequence cyclic shift value and the second sequence cyclic shift value. Furthermore, some or all of the values of the uplink control information may be composed of a first portion and a second portion. The first portion may correspond at least to the first sequence cyclic shift value and the second sequence cyclic shift value, and the second portion may correspond at least to the first sequence cyclic shift value and the second sequence cyclic shift value. Furthermore, the number of combinations may be the product of the number of combinations of values of the first sequence cyclic shift and the number of combinations of values of the second sequence cyclic shift.

(4) Also, a fourth aspect of the present invention is a terminal device comprising: a generation unit that generates an n-th modulation symbol sequence; and a transmission unit that transmits the n-th modulation symbol sequence on a PUCCH, wherein the n-th modulation symbol sequence is generated based at least on applying an n-th cyclic shift to an n-th base sequence; the n-th modulation symbol sequence is mapped to an n-th set of resource elements in the PUCCH; the n-th cyclic shift is determined at least on the n-th sequence cyclic shift, where n is an integer from 1 to N and N is an integer greater than 1; and the value of the n-th sequence cyclic shift is m _cs,cmb (n); and the terminal device further comprises a processing unit that associates some or all of the values of uplink control information transmitted on the PUCCH with at least a combination of values of m _cs,cmb (1) to m _cs,cmb (N).

(5) A fifth aspect of the present invention is a terminal device comprising: a generation unit that generates a first modulation symbol sequence and a second modulation symbol sequence; and a transmission unit that transmits the first modulation symbol sequence and the second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on a first cyclic shift being applied to a first base sequence; the second modulation symbol sequence is generated based at least on a phase shift amount and on a second base sequence being applied to a second cyclic shift; and the first modulation symbol sequence is transmitted to a first set of resource elements in the PUCCH. the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH, the first cyclic shift is determined based at least on the first sequence cyclic shift, and the uplink control information transmitted on the PUCCH may further include a processing unit that associates some or all of values of uplink control information transmitted on the PUCCH with at least the value of the first sequence cyclic shift and the phase shift amount, the phase shift amount being an amount of shift from a phase of the first modulation symbol sequence to a phase of the second modulation symbol sequence, and the phase shift amount may be given based on an OFDM symbol index for the PUCCH. The phase shift amount may be a constant multiple of the OFDM symbol index for the PUCCH and may be independent of a subcarrier index for the PUCCH.

(6) A sixth aspect of the present invention is a terminal device comprising: a generation unit that generates a first modulation symbol sequence and a second modulation symbol sequence; and a transmission unit that transmits the first modulation symbol sequence and the second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first phase shift to a first sequence, the second modulation symbol sequence is generated based at least on applying a second phase shift to a second sequence, the first sequence is generated based at least on applying a first cyclic shift to a first base sequence, and the second sequence is generated based at least on applying a second cyclic shift to a second base sequence. the first modulation symbol sequence is generated based at least on a PUCCH being used, the first amount of phase shift is determined based at least on a first phase shift amount index, the second amount of phase shift is determined based at least on a second phase shift amount index, the first modulation symbol sequence is mapped to a first set of resource elements in the PUCCH, and the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH; and the PUCCH comprises a processing unit that associates some or all of values of uplink control information transmitted on the PUCCH with at least a combination of the first phase shift amount index and the second phase shift amount index.

(7) Also, a seventh aspect of the present invention is a terminal device comprising: a generation unit that generates an n-th modulation symbol sequence; and a transmission unit that transmits the n-th modulation symbol sequence on a PUCCH, wherein the n-th modulation symbol sequence is generated based at least on applying an n-th phase shift to the n-th sequence, the n-th sequence is generated based at least on applying an n-th cyclic shift to an n-th base sequence, an amount of the n-th phase shift is determined based at least on an n-th phase shift amount index, the n-th modulation symbol sequence is mapped to an n-th set of resource elements in the PUCCH, n is an integer from 1 to N, and N is an integer greater than 1, the n-th phase shift amount index is m _ps,cmb (n), and the terminal device further comprises a processing unit that associates some or all of the values of uplink control information transmitted on the PUCCH with at least a combination of values of m _ps,cmb (1) to m _ps,cmb (N).

(8) Also, an eighth aspect of the present invention is a terminal device, comprising: a generation unit that generates a first modulation symbol sequence and a second modulation symbol sequence; and a transmission unit that transmits the first modulation symbol sequence and the second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first cyclic shift to a first base sequence, and the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence, and The first modulation symbol sequence is mapped to a first set of resource elements in the PUCCH, the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH, the first base sequence corresponds to a first group number, and the second base sequence corresponds to a second group number, and the uplink control information transmitted on the PUCCH is further provided with a processing unit that associates a part or all of a value of the uplink control information to be transmitted on the PUCCH with at least a difference between a value of the first group number and a value of the second group number. The difference may be determined based on Equation 12 as u _add . When the difference is determined based on Equation 12, the value of the first group number may be u ₉₃₀ and the value of the second group number may be u ₉₃₁ .

(9) Also, a ninth aspect of the present invention is a terminal device comprising: a generation unit that generates an n-th modulation symbol sequence; and a transmission unit that transmits the n-th modulation symbol sequence on a PUCCH, wherein the n-th modulation symbol sequence is generated based at least on applying an n-th cyclic shift to an n-th base sequence, the n-th modulation symbol sequence is mapped to an n-th set of resource elements in the PUCCH, the n-th base sequence corresponds to an n-th group number, the n is an integer from 1 to N, and the N is an integer greater than 1, a difference between a value of the n-th group number and a value of the n+1th group number is u _add (n), and the terminal device comprises a processing unit that associates some or all of the values of uplink control information transmitted on the PUCCH with at least a combination of values of u _add (1) to u _add (N−1). Also, the u _add (n) may be determined based on Equation 12, where u _{add is u add} . When u _add (n) is determined based on Equation 12, the value of the nth group number may be u ₉₃₀ and the value of the n+1th group number may be u ₉₃₁ .

(10) Also, a tenth aspect of the present invention is a terminal device comprising: a generation unit that generates a first modulation symbol sequence and a second modulation symbol sequence; and a transmission unit that transmits the first modulation symbol sequence and the second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first cyclic shift to a first base sequence, and the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence, and The PUCCH includes a first modulation symbol sequence mapped to a first set of resource elements, a second modulation symbol sequence mapped to a second set of resource elements, the first base sequence corresponding to a first group number, and the second base sequence corresponding to a second group number. The PUCCH includes a processing unit configured to associate some or all of the values of uplink control information transmitted on the PUCCH with at least combinations of values of the first group number and values of the second group number. Furthermore, some or all of the values of the uplink control information may be configured with a first portion and a second portion. The first portion may correspond to at least the values of the first group number and the values of the second group number, and the second portion may correspond to at least the values of the first group number and the values of the second group number. Furthermore, the number of combinations may be the product of the number of combinations of values of the first group number and the number of combinations of values of the second group number.

(11) Also, an 11th aspect of the present invention is a terminal device comprising: a generation unit that generates an nth modulation symbol sequence; and a transmission unit that transmits the nth modulation symbol sequence on a PUCCH, wherein the nth modulation symbol sequence is generated based at least on applying an nth cyclic shift to an nth base sequence; the nth modulation symbol sequence is mapped to an nth set of resource elements in the PUCCH; the nth base sequence is determined at least based on an nth group number, wherein n is an integer from 1 to N and N is an integer greater than 1; the value of the nth group number is u _cmb (n); and the terminal device comprises a processing unit that maps some or all of the values of the uplink control information transmitted on the PUCCH to at least a combination of values of u _cmb (1) to u _cmb (N).

(12) Also, a twelfth aspect of the present invention is a base station apparatus, comprising: a receiver configured to receive a first modulation symbol sequence and a second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first cyclic shift to a first base sequence, the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence, and the first modulation symbol sequence is generated based on applying a first cyclic shift to a first set of resource elements on the PUCCH. the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH, the first cyclic shift is determined based at least on a first sequence cyclic shift, and the second cyclic shift is determined based at least on a second sequence cyclic shift; and some or all of the values of uplink control information transmitted on the PUCCH may be associated at least with a difference between the value of the first sequence cyclic shift and the value of the second sequence cyclic shift. Some or all of the values of the uplink control information may be associated at least with a combination of the value of the first sequence cyclic shift and the difference. Furthermore, the difference may be determined based on Equation 7 as m _cs,ad . When the difference is determined based on Equation 7, the value of the first sequence cyclic shift may be m _cs,950 and the value of the second sequence cyclic shift may be m _cs,951 .

(13) Also, a thirteenth aspect of the present invention is a base station apparatus, comprising: a receiving unit configured to receive an n-th modulation symbol sequence on a PUCCH, wherein the n-th modulation symbol sequence is generated based at least on applying an n-th cyclic shift to an n-th base sequence; the n-th modulation symbol sequence is mapped to an n-th set of resource elements in the PUCCH; the n-th cyclic shift is determined based at least on the n-th sequence cyclic shift, wherein the n is an integer from 1 to N, and the N is an integer greater than 1; further, a difference between a value of the n-th sequence cyclic shift and a value of the n+1-th sequence cyclic shift is m _cs,add (n); and some or all of values of uplink control information transmitted on the PUCCH are associated with at least a combination of values of m _cs,add (1) to m _cs,add (N-1). Furthermore, the m _cs,add (n) may be determined as m _cs,add based on Equation 7. When the m _cs,add (n) is determined based on Equation 7, the value of the nth sequence cyclic shift may be m _cs,950 , and the value of the n+1th sequence cyclic shift may be m _cs,951 .

(14) Also, a fourteenth aspect of the present invention is a base station device comprising a receiver that receives the first modulation symbol sequence and the second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first cyclic shift to a first base sequence, the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence, and the first modulation symbol sequence is generated based on applying a first cyclic shift to a first set of resource elements in the PUCCH. the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH, the first cyclic shift is determined based at least on a first sequence cyclic shift, and the second cyclic shift is determined based at least on a second sequence cyclic shift, and some or all of the values of uplink control information transmitted on the PUCCH are associated at least with a combination of the first sequence cyclic shift value and the second sequence cyclic shift value. Alternatively, some or all of the values of the uplink control information may be composed of a first portion and a second portion. The first portion may correspond at least to the first sequence cyclic shift value and the second sequence cyclic shift value, and the second portion may correspond at least to the first sequence cyclic shift value and the second sequence cyclic shift value. Furthermore, the number of combinations may be the product of the number of combinations of values of the first sequence cyclic shift and the number of combinations of values of the second sequence cyclic shift.

(15) Also, a 15th aspect of the present invention is a base station device, comprising: a receiving unit that receives an n-th modulation symbol sequence on a PUCCH, wherein the n-th modulation symbol sequence is generated based at least on applying an n-th cyclic shift to an n-th base sequence; the n-th modulation symbol sequence is mapped to an n-th set of resource elements in the PUCCH; the n-th cyclic shift is determined at least based on the n-th sequence cyclic shift, wherein n is an integer from 1 to N, and N is an integer greater than 1; further, a value of the n-th sequence cyclic shift is m _cs,cmb (n); and some or all of the values of uplink control information transmitted on the PUCCH are associated with at least a combination of values of m _cs,cmb (1) to m _cs,cmb (N).

(16) Also, a 16th aspect of the present invention is a base station device comprising: a receiver that receives a first modulation symbol sequence and a second modulation symbol sequence on a PUCCH; the first modulation symbol sequence is generated based at least on a first cyclic shift being applied to a first base sequence; the second modulation symbol sequence is generated based at least on a phase shift amount and a second cyclic shift being applied to a second base sequence; the first modulation symbol sequence is mapped to a first set of resource elements in the PUCCH; and the second modulation symbol sequence is generated based on a first cyclic shift being applied to a second base sequence. a first modulation symbol sequence may be mapped to a second set of resource elements in the PUCCH, the first cyclic shift may be determined based at least on the first sequence cyclic shift, and some or all of values of uplink control information transmitted on the PUCCH may be associated with at least the value of the first sequence cyclic shift and the phase shift amount, the phase shift amount being an amount of shift from a phase of the first modulation symbol sequence to a phase of the second modulation symbol sequence, and the phase shift amount may be given based on an OFDM symbol index for the PUCCH. The phase shift amount may be a constant multiple of the OFDM symbol index for the PUCCH and may be independent of a subcarrier index for the PUCCH.

(17) Also, a seventeenth aspect of the present invention is a base station device comprising a receiver that receives a first modulation symbol sequence and a second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated at least based on applying a first phase shift to a first sequence, the second modulation symbol sequence is generated at least based on applying a second phase shift to a second sequence, the first sequence is generated at least based on applying a first cyclic shift to a first base sequence, and the second sequence is generated at least based on applying a second cyclic shift to a second base sequence. the first amount of phase shift is determined based at least on a first phase shift amount index, the second amount of phase shift is determined based at least on a second phase shift amount index, the first modulation symbol sequence is mapped to a first set of resource elements in the PUCCH, the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH, and further, some or all of values of uplink control information transmitted on the PUCCH are associated with at least a combination of the first phase shift amount index and the second phase shift amount index.

(18) Also, an 18th aspect of the present invention is a base station apparatus, comprising: a receiving unit that receives an n-th modulation symbol sequence on a PUCCH, wherein the n-th modulation symbol sequence is generated based at least on applying an n-th phase shift to the n-th sequence, the n-th sequence is generated based at least on applying an n-th cyclic shift to an n-th base sequence, an amount of the n-th phase shift is determined based at least on an n-th phase shift amount index, the n-th modulation symbol sequence is mapped to an n-th set of resource elements on the PUCCH, n is an integer from 1 to N, and N is an integer greater than 1, further, the n-th phase shift amount index is m _ps,cmb (n), and some or all of the values of uplink control information transmitted on the PUCCH are associated with at least a combination of values of m _ps,cmb (1) to m _ps,cmb (N).

(19) Also, a 19th aspect of the present invention is a base station apparatus, comprising: a receiving unit configured to receive a first modulation symbol sequence and a second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first cyclic shift to a first base sequence, the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence, the first modulation symbol sequence is mapped to a first set of resource elements on the PUCCH, the second modulation symbol sequence is mapped to a second set of resource elements on the PUCCH, the first base sequence corresponds to a first group number, and the second base sequence corresponds to a second group number, and further, a part or all of a value of uplink control information transmitted on the PUCCH is associated with at least a difference between a value of the first group number and a value of the second group number. Also, the difference may be determined based on Equation 12, where u _add is a number. When the difference is determined based on Equation 12, the value of the first group number may be u ₉₃₀ and the value of the second group number may be u ₉₃₁ .

(20) Also, a twentieth aspect of the present invention is a base station apparatus, comprising: a receiving unit that receives an n-th modulation symbol sequence on a PUCCH, wherein the n-th modulation symbol sequence is generated based at least on applying an n-th cyclic shift to an n-th base sequence, the n-th modulation symbol sequence is mapped to an n-th set of resource elements in the PUCCH, the n-th base sequence corresponds to an n-th group number, wherein n is an integer from 1 to N, and N is an integer greater than 1, a difference between a value of the n-th group number and a value of the n+1-th group number is u _add (n), and some or all of values of uplink control information transmitted on the PUCCH are associated with at least a combination of values of u _add (1) to u _add (N-1). Also, the u _add (n) may be determined based on Equation 12 using u _add . When u _add (n) is determined based on Equation 12, the value of the nth group number may be u ₉₃₀ and the value of the n+1th group number may be u ₉₃₁ .

(21) Also, a 21st aspect of the present invention is a base station device comprising a receiving unit that receives a first modulation symbol sequence and a second modulation symbol sequence on a PUCCH, wherein the first modulation symbol sequence is generated based at least on applying a first cyclic shift to a first base sequence, the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence, the first modulation symbol sequence is mapped to a first set of resource elements in the PUCCH, the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH, the first base sequence corresponds to a first group number, and the second base sequence corresponds to a second group number, and further, some or all of the values of uplink control information transmitted on the PUCCH are associated with at least a combination of the value of the first group number and the value of the second group number. Furthermore, some or all of the values of the uplink control information may be composed of a first part and a second part. The first part may correspond to at least the value of the first group number and the value of the second group number, and the second part may correspond to at least the value of the first group number and the value of the second group number. Furthermore, the number of combinations may be the product of the number of combinations of values that the first group number has and the number of combinations of values that the second group number has.

(22) Also, a 22nd aspect of the present invention is a base station device comprising a receiving unit that receives an nth modulation symbol sequence on a PUCCH, wherein the nth modulation symbol sequence is generated based at least on applying an nth cyclic shift to an nth base sequence, the nth modulation symbol sequence is mapped to an nth set of resource elements in the PUCCH, the nth base sequence is determined based at least on an nth group number, n is an integer from 1 to N, and N is an integer greater than 1, and further, the value of the nth group number is u _cmb (n), and some or all of the values of the uplink control information transmitted on the PUCCH correspond to at least a combination of values of u _cmb (1) to u _cmb (N).

The programs running on the base station device 3 and terminal device 1 relating to one aspect of the present invention may be programs (programs that cause a computer to function) that control a CPU (Central Processing Unit) or the like so as to realize the functions of the above-described embodiment relating to one aspect of the present invention. 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) or HDD (Hard Disk Drive), and is read, modified, and written by the CPU as needed.

In addition, a portion of the terminal device 1 and base station device 3 in the above-described embodiment may be implemented by a computer. In this case, the program for implementing this control function may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read into a computer system and executed to implement the function.

Note that the term "computer system" here refers to a computer system built into the terminal device 1 or base station device 3, and includes hardware such as the OS and peripheral devices. Furthermore, "computer-readable recording media" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, as well as storage devices such as hard disks built into the computer system.

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

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

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

Furthermore, some or all of the terminal device 1 and base station device 3 in the above-described embodiments may be realized as an LSI, which is typically an integrated circuit, or as a chipset. Each functional block of the terminal device 1 and base station device 3 may be individually formed into a chip, or some or all may be integrated into a chip. Furthermore, the integrated circuit method is not limited to LSI, and may be realized using a dedicated circuit or a general-purpose processor. Furthermore, if an integrated circuit technology that can replace LSI emerges due to advances in semiconductor technology, it may also be possible to use an integrated circuit based on that technology.

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

Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment and includes design modifications within the scope of the invention. Furthermore, various modifications of one aspect of the present invention are possible within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included within the technical scope of the present invention. Furthermore, configurations in which elements described in the above embodiments are substituted for elements that achieve the same effect are also included.

One aspect of the present invention can be used, for example, in communication systems, communication equipment (e.g., mobile phone devices, base station devices, wireless LAN devices, or sensor devices), integrated circuits (e.g., communication chips), or programs.

1 (1A, 1B, 1C) Terminal device 3 Base station device 10, 30 Radio transceiver unit 10a, 30a Radio transmitter unit 10b, 30b Radio receiver unit 11, 31 Antenna unit 12, 32 RF unit 13, 33 Baseband unit 14, 34 Upper layer processing unit 15, 35 Medium access control layer processing unit 16, 36 Radio resource control layer processing unit 91, 92, 93, 94 Search area set 300 Component carrier 301 Primary cell 302, 303 Secondary cell 3000 Points 3001, 3002 Resource grid 3003, 3004 BWP
3011, 3012, 3013, 3014 Offset 3100, 3200 Common resource block set 900 Uplink carrier 910, 911, 912 Modulation symbol sequence 920, 921, 922 OFDM symbol 930, 931, 932 Base sequence 940, 941, 942 Cyclic shift 950, 951, 952 Sequence cyclic shift 960 PUCCH

Claims (2)

a generator that generates a first modulation symbol sequence and a second modulation symbol sequence;
a transmitter that transmits the first modulation symbol sequence and the second modulation symbol sequence on a PUCCH;
the first modulation symbol sequence is generated based at least on a first cyclic shift applied to a first base sequence;
the second modulation symbol sequence is generated based at least on applying a second cyclic shift to a second base sequence;
the first modulation symbol sequence is mapped to a first set of resource elements in the PUCCH;
the second modulation symbol sequence is mapped to a second set of resource elements in the PUCCH;
the first base sequence corresponds to a first group number;
the second base sequence corresponds to a second group number;
Further, the mobile station includes a processing unit that associates some or all of the values of the uplink control information transmitted on the PUCCH with at least a combination of the value of the first group number and the value of the second group number.
Terminal device. the number of combinations is a product of the number of combinations of values of the first group number and the number of combinations of values of the second group number,
a part or all of the value of the uplink control information is composed of a first part and a second part;
the first portion corresponds to at least the first group number value and the second group number value;
The second portion corresponds at least to the value of the first group number and the value of the second group number.
The terminal device according to claim 1 .