Terminal device and base station device

Abstract

To provide a terminal device that effectively performs communication, a base station device, and a communication method.SOLUTION: In a radio communication system, a terminal device receives a PDCCH containing a DCI that instructs transmission of a PUSCH, applies frequency hopping for the PUSCH at least on the basis of the DCI, and transmits the PUSCH. A first upper layer parameter determines whether or not a DMRS band ring is valid for the PUSCH, and a second upper layer parameter is used for determining a time region window to be set. In the case where the first upper layer parameter and a third upper layer parameter are provided, a hopping interval for the frequency hopping is determined on the basis of the third upper layer parameter, and the hopping interval is determined at least on the basis of a combination of whether the first upper layer parameter is provided or not, whether the second upper layer parameter is provided or not, and whether the third upper layer parameter is provided or not.SELECTED DRAWING: Figure 9

Description

[Technical field]

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

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

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

[0004] In 3GPP, the extension of services supported by NR is being considered (Non-Patent Document 2). [Prior art documents] [Non-patent literature]

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

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

[0007] (1) A first aspect of the present invention is a terminal device comprising: a receiving unit that receives a PDCCH including a DCI instructing transmission of a PUSCH; a transmitting unit that transmits the PUSCH; and an upper layer processing unit that manages a first upper layer parameter, a second upper layer parameter, and a third upper layer parameter, wherein frequency hopping is applied for the PUSCH based on at least the DCI, the first upper layer parameter is an upper layer parameter for determining whether DMRS bundling is enabled for the PUSCH, the second upper layer parameter is an upper layer parameter used to determine a time domain window to be set, and when the first upper layer parameter and the third upper layer parameter are provided, A hopping interval for the frequency hopping is determined based on the third upper layer parameter, and the hopping interval is determined based at least on a combination of whether the first upper layer parameter is provided, whether the second upper layer parameter is provided, and whether the third upper layer parameter is provided.

[0008] (2) Also, a second aspect of the present invention is a base station device comprising: a transmitting unit that transmits a PDCCH including a DCI instructing transmission of a PUSCH; a receiving unit that receives the PUSCH; and an upper layer processing unit that manages a first upper layer parameter, a second upper layer parameter, and a third upper layer parameter, wherein frequency hopping is applied for the PUSCH based at least on the DCI, the first upper layer parameter is an upper layer parameter for determining whether DMRS bundling is enabled for the PUSCH, and the second upper layer parameter is an upper layer parameter used to determine a time domain window to be set, and when the first upper layer parameter and the third upper layer parameter are provided, a hopping interval for the frequency hopping is determined based on the third upper layer parameter, and the hopping interval is determined based at least on a combination of whether the first upper layer parameter is provided, whether the second upper layer parameter is provided, and whether the third upper layer parameter is provided.

[0009] (3) Also, a third aspect of the present invention is a communication method used in a terminal device, comprising the steps of receiving a PDCCH including a DCI instructing transmission of a PUSCH, transmitting the PUSCH, and managing a first upper layer parameter, a second upper layer parameter, and a third upper layer parameter, wherein frequency hopping is applied for the PUSCH based at least on the DCI, the first upper layer parameter is an upper layer parameter for determining whether DMRS bundling is enabled for the PUSCH, and the second upper layer parameter is an upper layer parameter used to determine a time domain window to be set, and when the first upper layer parameter and the third upper layer parameter are provided, a hopping interval for the frequency hopping is determined based on the third upper layer parameter, and the hopping interval is determined based at least on a combination of whether the first upper layer parameter is provided, whether the second upper layer parameter is provided, and whether the third upper layer parameter is provided.

[0010] (4) Also, a fourth aspect of the present invention is a communication method used in a base station device, comprising the steps of transmitting a PDCCH including a DCI instructing transmission of a PUSCH, receiving the PUSCH, and managing a first upper layer parameter, a second upper layer parameter, and a third upper layer parameter, wherein frequency hopping is applied for the PUSCH based at least on the DCI, the first upper layer parameter is an upper layer parameter for determining whether DMRS bundling is enabled for the PUSCH, and the second upper layer parameter is an upper layer parameter used to determine a time domain window to be set, and when the first upper layer parameter and the third upper layer parameter are provided, a hopping interval for the frequency hopping is determined based on the third upper layer parameter, and the hopping interval is determined based at least on a combination of whether the first upper layer parameter is provided, whether the second upper layer parameter is provided, and whether the third upper layer parameter is provided. Effect of the Invention

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

[0012] [Figure 1] 1 is a conceptual diagram of a wireless communication system according to an embodiment of the present invention. [Diagram 2] 1 is an example showing a relationship between a subcarrier spacing setting μ, the number of OFDM symbols per slot Nslot symb, and a cyclic prefix (CP) setting according to an aspect of the present embodiment. [Diagram 3] FIG. 2 is a diagram illustrating an example of a method for configuring a resource grid according to an aspect of the present embodiment. [Figure 4] FIG. 3 is a diagram illustrating an example of the configuration of a resource grid 3001 according to an aspect of the present embodiment. [Diagram 5]2 is a schematic block diagram illustrating a configuration example of a base station device 3 according to an aspect of the present embodiment. FIG. [Figure 6] 1 is a schematic block diagram showing an example of the configuration of a terminal device 1 according to an aspect of the present embodiment. [Figure 7] FIG. 2 is a diagram illustrating an example of the configuration of an SS / PBCH block according to one embodiment of the present invention. [Figure 8] A diagram showing an example of a monitoring opportunity for a search area set according to one aspect of this embodiment. [Figure 9] FIG. 13 is a diagram illustrating an example of inter-bundle frequency hopping independent of a set time domain window according to one aspect of the present embodiment. [Figure 10] FIG. 13 illustrates an example of inter-bundle frequency hopping dependent on a set time domain window according to one aspect of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0014] floor(C) may be a floor function for real number C. For example, floor(C) may be a function that outputs the largest integer not exceeding 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 not 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. Here, e is Napier's constant. H^I indicates 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, min(L,M) is a function that outputs L or M when L and M are equal. round(N) is a function that outputs the integer value closest to N. “·” indicates multiplication.

[0015] In a wireless communication system according to an aspect of the present embodiment, at least OFDM (Orthogonal Frequency Division Multiplex) is used. An OFDM symbol is a unit of OFDM in the time domain. The OFDM symbol includes at least one or a plurality of subcarriers. The OFDM symbol is converted into a time-continuous signal in baseband signal generation. In the downlink, at least CP-OFDM (Cyclic Prefix - Orthogonal Frequency Division Multiplex) is used. In the uplink, either CP-OFDM or DFT-s-OFDM (Discrete Fourier Transform - spread - Orthogonal Frequency Division Multiplex) is used. DFT-s-OFDM may be provided by applying transform precoding to CP-OFDM.

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

[0017] Fig. 1 is a conceptual diagram of a wireless communication system according to an aspect of the present embodiment. In Fig. 1, the wireless communication system includes at least terminal devices 1A to 1C and a base station device 3 (BS#3: Base station#3). Hereinafter, the terminal devices 1A to 1C are also referred to as terminal device 1 (UE#1: User Equipment#1).

[0018] The base station device 3 may be configured to include one or more transmission devices (or transmission points, transmission / reception devices, transmission / reception points). When the base station device 3 is configured with multiple transmission devices, each of the multiple transmission devices may be located at a different position.

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

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

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

[0022] The resource grid is size,μ grid,x N RB sc where the resource grid includes common resource blocks N start,μ grid,xAlso, common resource block N start,μ grid,x is also referred to as the reference point of the resource grid.

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

[0024] The subscript x added to the resource grid related parameters indicates the transmission direction, for example, the subscript x may be used to indicate either the downlink or the uplink.

[0025] N size,μ grid,x is the offset setting indicated by a parameter provided by the RRC layer (e.g., the CarrierBandwidth parameter). start,μ grid,x is a bandwidth configuration indicated by a parameter provided by the RRC layer (eg, parameter OffsetToCarrier). The offset configuration and the bandwidth configuration are configurations used to configure an SCS-specific carrier.

[0026] Subcarrier Spacing (SCS) for a certain subcarrier spacing setting μ )Δf is Δf=2 μ 15 kHz, where the subcarrier spacing setting μ may represent any of 0, 1, 2, 3, or 4.

[0027] FIG. 2 shows a subcarrier interval setting μ and the number of OFDM symbols per slot N according to one embodiment of the present invention. slot symb , and CP (cyclic prefix) setting relationship In FIG. 2A, for example, when the subcarrier spacing setting μ is 2 and the CP setting is normal cyclic prefix (CP), N slotsymb =14, N frame,μ slot =40, N subframe,μ slot In FIG. 2B, for example, when the subcarrier spacing setting μ is 2 and the CP setting is the extended cyclic prefix (CP), N slot symb =12, N frame,μ slot =40, N subframe,μ slot =4.

[0028] Time unit T c may be used to express a length in the time domain. c is T c =1 / (Δf max N f ) Δf max = 480kHz. f = 4096. The constant κ is κ = Δf max N f / (Δf ref N f,ref ) = 64. Δf ref is 15kHz. f,ref is 2048.

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

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

[0031] A slot may consist of multiple OFDM symbols. For example, N consecutive slot symb One slot may be composed of N OFDM symbols. For example, in the normal CP setting, slot symb In addition, in the setting of the extended CP, N slot symb =12.

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

[0033] FIG. 3 is a diagram showing an example of a method for configuring a resource grid according to one aspect of the present embodiment. The horizontal axis in FIG. 3 indicates the frequency domain. FIG. 3 shows a configuration example of a resource grid with a subcarrier spacing μ1 in a component carrier 300, and a configuration example of a resource grid with a subcarrier spacing μ2 in the certain 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 μ1=μ2-1, but various aspects of the present embodiment are not limited to the condition of μ1=μ2-1.

[0034] The component carrier 300 is a band having a predetermined width in the frequency domain.

[0035] The point 3000 is an identifier for identifying a certain subcarrier. Point 3000 is also referred to as point A. Common resource block (CRB) set 3100 is a set of common resource blocks for subcarrier spacing setting μ1.

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

[0037] The offset 3011 is an 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 a subcarrier spacing setting μ1. The resource grid 3001 is an N size,μ grid1,xIt contains common resource blocks.

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

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

[0040] In the common resource block set 3200, the common resource block including the point 3000 (a black block in the common resource block set 3200 in FIG. 3 ) is also referred to as the reference point of the common resource block set 3200. The reference point of the common resource block set 3200 may be the common resource block with index 0 in the common resource block set 3200.

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

[0042] The offset 3014 is the distance from the reference point of the resource grid 3002 to the reference point of the BWP 3004 with index i2 (N start,μ BWP,i2 )

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

[0044] A resource block (RB) is N RB sc A resource block includes a common resource block, a physical resource block (PRB), and a cal Resource Block), and Virtual Resource Block (VRB) ) where N RB sc =12.

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

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

[0047] The physical resource blocks for a given subcarrier spacing configuration μ are indexed in the frequency domain starting from 0 in ascending order in a given BWP. μ PRB is n μ CRB =n μ PRB +N start,μ BWP,i Here, N start,μ BWP,i denotes the reference point of the BWP with index i.

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

[0049] An antenna port is 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, the channel may correspond to a physical channel, and the symbol may correspond to an OFDM symbol, and the symbol may correspond to a resource block unit, and the symbol may correspond to a resource element.

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

[0051] Carrier aggregation is the process of aggregating multiple serving The carrier aggregation may be a communication using a cell. Also, the carrier aggregation may be a communication using a plurality of aggregated component carriers. Also, the carrier aggregation may be a communication using a plurality of aggregated downlink component carriers. Also, the carrier aggregation may be a communication using a plurality of aggregated uplink component carriers.

[0052] Fig. 5 is a schematic block diagram showing a configuration example of a base station device 3 according to one aspect of the present embodiment. As shown in Fig. 5, the base station device 3 includes at least a radio transmission / reception unit (physical layer processing unit) 30 and / or a part or all of a higher layer processing unit 34. The radio transmission / reception unit 30 includes at least an antenna unit 31, an RF (Radio Frequency) unit 32, and a part or all of a baseband unit 33. The higher layer processing unit 34 includes at least a medium access control layer processing unit 35 and a part or all of a radio resource control (RRC) layer processing unit 36.

[0053] The wireless transceiver 30 includes at least a wireless transmitter 30a and a part or all of a wireless receiver 30b. Here, the device configurations of the baseband unit included in the wireless transmitter 30a and the baseband unit included in the wireless receiver 30b may be the same or different. Furthermore, the device configurations of the RF unit included in the wireless transmitter 30a and the RF unit included in the wireless receiver 30b may be the same or different. Furthermore, the device configurations of the antenna unit included in the wireless transmitter 30a and the antenna unit included in the wireless receiver 30b may be the same or different.

[0054] For example, the wireless transmitting unit 30a may generate and transmit a baseband signal of a PDSCH. For example, the wireless transmitting unit 30a may generate and transmit a baseband signal of a PDCCH. For example, the wireless transmitting unit 30a may generate and transmit a baseband signal of a PBCH. For example, the wireless transmitting unit 30a may generate and transmit a baseband signal of a synchronization signal. For example, the wireless transmitting unit 30a may generate and transmit a baseband signal of a PDSCH DMRS. For example, the wireless transmitting unit 30a may generate and transmit a baseband signal of a PDCCH DMRS. For example, the wireless transmitting unit 30a may generate and transmit a baseband signal of a CSI-RS. For example, the wireless transmitting unit 30a may generate and transmit a baseband signal of a DL PTRS.

[0055] For example, the wireless receiving unit 30b may receive a PRACH. For example, the wireless receiving unit 30b may receive and demodulate a PUCCH. The wireless receiving unit 30b may receive and demodulate a PUSCH. For example, the wireless receiving unit 30b may receive a PUCCH DMRS. For example, the wireless receiving unit 30b may receive a PUSCH DMRS. For example, the wireless receiving unit 30b may receive a UL PTRS. For example, the wireless receiving unit 30b may receive an SRS.

[0056] The upper layer processing unit 34 outputs the downlink data (transport block) to the radio transceiver unit 30 (or the radio transmitter unit 30a). The upper layer processing unit 34 performs processing of a Medium Access Control (MAC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, and an RRC layer.

[0057] The medium access control layer processing unit 35 included in the upper layer processing unit 34 performs processing of the MAC layer.

[0058] The radio resource control layer processing unit 36 ​​included in the upper layer processing unit 34 performs processing of the RRC layer. The radio resource control layer processing unit 36 ​​manages various setting information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 36 ​​sets parameters based on an RRC message received from the terminal device 1.

[0059] The radio transceiver 30 (or the radio transmitter 30a) performs processes such as modulation and encoding. The radio transceiver 30 (or the radio transmitter 30a) generates a physical signal by modulating, encoding, and generating a baseband signal (converting into a time-continuous signal) downlink data, and transmits the physical signal to the terminal device 1. The radio transceiver 30 (or the radio transmitter 30a) may allocate the physical signal to a certain component carrier and transmit the physical signal to the terminal device 1.

[0060] The wireless transceiver unit 30 (or the wireless receiver unit 30b) performs processes such as demodulation and decoding. The wireless transceiver unit 30 (or the wireless receiver unit 30b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 34. The wireless transceiver unit 30 (or the wireless receiver unit 30b) may perform a channel access procedure prior to transmitting the physical signal.

[0061] The RF unit 32 converts the signal received via the antenna unit 31 into a baseband signal by quadrature demodulation (down-converts) and removes unnecessary frequencies. The RF unit 32 outputs the processed analog signal to the baseband unit.

[0062] The baseband unit 33 converts the analog signal input from the RF unit 32 into The baseband unit 33 converts the digital signal into a digital signal. The baseband unit 33 removes a portion corresponding to a CP (Cyclic Prefix) from the converted digital signal, and converts the signal into a CP-removed signal. A Fast Fourier Transform (FFT) is performed on the signal to extract the frequency domain signal.

[0063] The baseband unit 33 performs an inverse fast Fourier transform (IFFT) on the data to generate an OFDM symbol, adds a CP to the generated OFDM symbol, generates a baseband digital signal, and converts the baseband digital signal into an analog signal. The baseband unit 33 outputs the converted analog signal to the RF unit 32.

[0064] 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 of controlling transmission power. The RF unit 32 is also referred to as a transmission power control unit.

[0065] For the terminal device 1, one or more serving cells (or component carriers, downlink component carriers, uplink component carriers) may be configured.

[0066] Each of the serving cells configured for the terminal device 1 may be any of a PCell (Primary cell), a PSCell (Primary SCG cell), and a SCell (Secondary Cell).

[0067] The PCell is a serving cell included in a Master Cell Group (MCG). ell executes an initial connection establishment procedure or a connection re-establishment procedure by the terminal device 1. This is the cell where the test is performed (the cell where the test was performed).

[0068] The PSCell is a serving cell included in a secondary cell group (SCG). The PSCell is a serving cell to which the terminal device 1 performs random access.

[0069] The SCell may be included in either the MCG or the SCG.

[0070] The term "serving cell group" (cell group) refers to at least the MCG and the SCG. The serving cell group may include one or more serving cells (or component carriers). The one or more serving cells (or component carriers) included in the serving cell group may be operated by carrier aggregation.

[0071] 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).

[0072] Of one or more downlink BWPs configured for a serving cell (or a downlink component carrier), one downlink BWP may be configured as an 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 configured as an active uplink BWP (or one uplink BWP may be activated).

[0073] The PDSCH, PDCCH, and CSI-RS may be received in an active downlink BWP. The terminal device 1 may attempt to receive the PDSCH, PDCCH, and CSI-RS in the 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 the active uplink BWP. The active downlink BWP and the active uplink BWP are also collectively referred to as an active BWP.

[0074] The PDSCH, PDCCH, and CSI-RS may not be received in a downlink BWP (inactive downlink BWP) other than the active downlink BWP. The terminal device 1 may not attempt to receive the PDSCH, PDCCH, and CSI-RS in a downlink BWP that is not an active downlink BWP. The PUCCH and PUSCH may not be transmitted in an uplink BWP (inactive uplink BWP) that is not an active uplink BWP. The terminal device 1 may not transmit the PUCCH and PUSCH in an uplink BWP that is not an active uplink BWP. The inactive downlink BWP and the inactive uplink BWP are collectively referred to as the inactive BWP.

[0075] Downlink BWP switch is a procedure for deactivating one active downlink BWP of a serving cell and activating one of the inactive downlink BWPs of the serving cell. The downlink BWP switching may be controlled by a BWP field included in the downlink control information. The downlink BWP switching may be controlled based on a parameter of a higher layer.

[0076] The uplink BWP switching is used to deactivate one active uplink BWP and activate any inactive uplink BWP other than the one active uplink BWP. The uplink BWP switching may be controlled by a BWP field included in the downlink control information. The uplink BWP switching may be controlled based on higher layer parameters.

[0077] 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 a certain time.

[0078] 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 a given time.

[0079] Fig. 6 is a schematic block diagram showing a configuration example of a terminal device 1 according to one aspect of the present embodiment. As shown in Fig. 6, the terminal device 1 includes at least a radio transmission / reception unit (physical layer processing unit) 10 and one or all of an upper layer processing unit 14. The radio transmission / reception 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.

[0080] The wireless transceiver 10 includes at least a wireless transmitter 10a and a part or all of a wireless receiver 10b. Here, the device configurations of the baseband unit 13 included in the wireless transmitter 10a and the baseband unit 13 included in the wireless receiver 10b may be the same or different. The device configurations of the RF unit 12 included in the wireless transmitter 10a and the RF unit 12 included in the wireless receiver 10b may be the same or different. The device configurations of the antenna unit 11 included in the wireless transmitter 10a and the antenna unit 11 included in the wireless receiver 10b may be the same or different.

[0081] For example, the radio transmission unit 10a may generate and transmit a baseband signal of a PRACH. For example, the radio transmission unit 10a may generate and transmit a baseband signal of a PUCCH. The radio transmission unit 10a may generate and transmit a baseband signal of a PUSCH. For example, the radio transmission unit 10a may generate and transmit a baseband signal of a PUCCH DMRS. For example, the radio transmission unit 10a may generate and transmit a baseband signal of a PUSCH DMRS. For example, the radio transmission unit 10a may generate and transmit a baseband signal of a UL PTRS. For example, the radio transmission unit 10a may generate and transmit a baseband signal of an SRS.

[0082] For example, the wireless receiving unit 10b may receive and demodulate a PDSCH. For example, the wireless receiving unit 10b may receive and demodulate a PDCCH. For example, the wireless receiving unit 10b may receive and demodulate a PBCH. For example, the wireless receiving unit 10b may receive a synchronization signal. For example, the wireless receiving unit 10b may receive a PDSCH DMRS. For example, the wireless receiving unit 10b may receive a PDCCH DMRS. For example, the wireless receiving unit 10 For example, the wireless receiver 10b may receive the DL PTRS.

[0083] The upper layer processing unit 14 outputs the uplink data (transport block) to the radio transceiver unit 10 (or the radio transmitter unit 10a). The upper layer processing unit 14 performs processing of the MAC layer, the packet data integration protocol layer, the radio link control layer, and the RRC layer.

[0084] The medium access control layer processing unit 15 included in the upper layer processing unit 14 performs processing of the MAC layer.

[0085] The radio resource control layer processing unit 16 included in the upper layer processing unit 14 performs processing of the RRC layer. 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 an RRC message received from the base station device 3.

[0086] The wireless transceiver 10 (or the wireless transmitter 10a) performs processes such as modulation and encoding. The wireless transceiver 10 (or the wireless transmitter 10a) generates a physical signal by modulating, encoding, and generating a baseband signal (converting to a time-continuous signal) the uplink data, and transmits the physical signal to the base station device 3. The wireless transceiver 10 (or the wireless transmitter 10a) may place the physical signal in a certain BWP (active uplink BWP) and transmit it to the base station device 3.

[0087] The wireless transceiver unit 10 (or the wireless receiver unit 10b) performs processes such as demodulation and decoding. The wireless transceiver unit 10 (or the wireless receiver unit 30b) may receive a physical signal in a certain BWP (active downlink BWP) of a certain serving cell. The wireless transceiver unit 10 (or the wireless receiver unit 10b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 14. The wireless transceiver unit 10 (wireless receiver unit 10b) may perform a channel access procedure prior to transmitting the physical signal.

[0088] The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by quadrature demodulation (down-converts) and removes unnecessary frequency components. The RF unit 12 outputs the processed analog signal to the baseband unit 13.

[0089] The baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal. The baseband unit 13 then subtracts a CP (Cyclic Prefix) from the converted digital signal. The corresponding portion is removed, and the signal from which the CP has been removed is subjected to a Fast Fourier Transform (FFT) to extract the signal in the frequency domain.

[0090] The baseband unit 13 performs an inverse fast Fourier transform (IFFT) on the uplink data to generate an OFDM symbol, and The baseband unit 13 adds a CP to generate a baseband digital signal, and converts the baseband digital signal into an analog signal. The baseband unit 13 outputs the converted analog signal to the RF unit 12.

[0091] 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 of controlling transmission power. The RF unit 12 is also referred to as a transmission power control unit.

[0092] The physical signals (signals) will be explained below.

[0093] The physical signals are the downlink physical channel, the downlink physical signal, and the uplink physical channel. The term "physical channel" is a general term for the downlink physical channel and the uplink physical channel. The term "physical signal" is a general term for the downlink physical signal and the uplink physical signal.

[0094] The uplink physical channel may correspond to a set of resource elements that convey information generated in a higher layer. The uplink physical channel may be a physical channel used in an uplink component carrier. The uplink physical channel may be transmitted by a terminal device 1. The uplink physical channel may be received by a base station device 3. In a wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical channels may be used. ·PUCCH (Physical Uplink Control CHannel) ·PUSCH (Physical Uplink Shared CHannel) ·PRACH(Physical Random Access CHannel)

[0095] 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 the PUCCH in which the uplink control information is mapped. The base station device 3 may receive the PUCCH in which the uplink control information is mapped.

[0096] Uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) is channel state information (CSI), schedule The SR includes at least a part or all of the Scheduling Request (SR) and Hybrid Automatic Repeat request ACKnowledgement (HARQ-ACK) information.

[0097] The channel state information is also referred to as a channel state information bit or a channel state information sequence. The scheduling request is also referred to as a scheduling request bit or a scheduling request sequence. The HARQ-ACK information is also referred to as a HARQ-ACK information bit or a HARQ-ACK information sequence.

[0098] The HARQ-ACK information may include at least a HARQ-ACK corresponding to a transport block (TB). The HARQ-ACK may include an ACK (acknowledgement) or a NACK (negative-acknowledgement) corresponding to the transport block. ). The ACK may indicate that the decoding of the transport block has been successfully completed. The NACK may indicate that the decoding of the transport block has not been successfully completed. The HARQ-ACK information may include a HARQ-ACK codebook that includes one or more HARQ-ACK bits.

[0099] A transport block is a sequence of information bits delivered from higher layers. Here, the sequence of information bits is also called a bit sequence. Here, the transport block may be delivered via an UpLink-Shared CHannel (UL-SCH) in the transport layer.

[0100] The HARQ-ACK for the transport block may be referred to as the HARQ-ACK for the PDSCH. In this case, the "HARQ-ACK for the PDSCH" refers to the HARQ-ACK for the transport block included in the PDSCH.

[0101] The HARQ-ACK is a code block group (CBG) included in a transport block. The ACK or NACK may indicate an ACK or NACK corresponding to the group.

[0102] The scheduling request may be used at least to request UL-SCH resources for an initial transmission. The scheduling request bit may be used to indicate either a positive SR or a negative SR. The scheduling request bit indicating a positive SR is also referred to as "a positive SR is transmitted". The positive SR may indicate that UL-SCH resources for an initial transmission are requested by the terminal device 1. The positive SR may indicate that a scheduling request is triggered by a higher layer. The positive SR may be transmitted when a scheduling request is indicated by a higher layer. The scheduling request bit indicating a negative SR is also referred to as "a negative SR is transmitted". The negative SR may indicate that UL-SCH resources for an initial transmission are not requested by the terminal device 1. The negative SR may indicate that a scheduling request is not triggered by a higher layer. The negative SR may be transmitted when a scheduling request is not indicated by a higher layer.

[0103] 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 index related to the quality of a propagation path (e.g., propagation strength) or the quality of a physical channel, and the PMI is an index related to a precoder. The RI is an index related to a transmission rank (or the number of transmission layers).

[0104] The channel state information is an indicator regarding the reception state of at least a physical signal (e.g., CSI-RS) used for channel measurement. The value of the channel state information may be determined by the terminal device 1 based on the reception state assumed by at least a physical signal used for channel measurement. The channel measurement may include an interference measurement.

[0105] The PUCCH may correspond to a PUCCH format. The PUCCH may be a set of resource elements used to convey the PUCCH format. The PUCCH may include a PUCCH format. The PUCCH may be transmitted with a certain PUCCH format. The PUCCH format may be interpreted as a format of information. The PUCCH format may also be interpreted as a set of information set to a certain information format.

[0106] The PUSCH may be used to transmit one or both of a transport block and uplink control information. The transport block may be arranged in the PUSCH. The transport block delivered by the UL-SCH may be arranged in the PUSCH. The uplink control information may be arranged in the PUSCH. The terminal device 1 may transmit a PUSCH in which a transport block and one or both of the uplink control information are arranged. The base station device 3 may receive a PUSCH in which a transport block and one or both of the uplink control information are arranged.

[0107] The PRACH may be transmitted to convey a random access preamble. The terminal device 1 may transmit the PRACH. The base station device 3 may receive the PRACH. The sequence x of the PRACH u,v (n) is x u,v (n)=x u (mod(n+C v ,L RA ) where x u is a ZC (Zadoff Chu) sequence. Also, x u x u =exp(-jπui(i+1) / L RA ), where j is the imaginary unit, and π is the ratio of the circumference of a circle to its circumference. v corresponds to the cyclic shift of the PRACH sequence. RA corresponds to the length of the PRACH sequence Also, L RA is 839 or 139. Also, i ranges from 0 to L RA where u is an integer in the range of -1 to u, and u is the sequence index for the PRACH sequence.

[0108] For each PRACH opportunity, 64 random access preambles are defined. The random access preambles are the cyclic shifts of the PRACH sequence C v , and a sequence index u for the PRACH sequence. An index may be provided for each of the 64 identified random access preambles.

[0109] The uplink physical signal may correspond to a set of resource elements. The uplink physical signal may not be used to transmit information generated in a higher layer. In addition, the uplink physical signal may be used to transmit information generated in a physical layer. The uplink physical signal may be a physical signal used in an uplink component carrier. The terminal device 1 may transmit the uplink physical signal. The base station device 3 may receive the uplink physical signal. In a wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical signals may be used. ·UL DMRS(UpLinkDemodulation Reference Signal) ·SRS(Sounding Reference Signal) ·UL PTRS(UpLink Phase Tracking Reference Signal)

[0110] UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.

[0111] A set of antenna ports of a DMRS for a PUSCH (a DMRS related to a PUSCH, a DMRS included in a PUSCH, a DMRS corresponding to a PUSCH) may be given based on a set of antenna ports for the PUSCH. For example, the set of antenna ports of a DMRS for a PUSCH may be the same as the set of antenna ports for the PUSCH.

[0112] The transmission of the PUSCH and the transmission of the 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 the PUSCH. Transmitting the PUSCH may be transmitting the PUSCH and the DMRS for the PUSCH.

[0113] The propagation path of the PUSCH may be estimated from the DMRS for the PUSCH.

[0114] The set of antenna ports for DMRS for PUCCH (DMRS related to PUCCH, DMRS included in PUCCH, DMRS corresponding to PUCCH) may be the same as the set of antenna ports for PUCCH.

[0115] The transmission of the PUCCH and the transmission of the DMRS for the PUCCH may be indicated (or triggered) by one DCI format. One or both of the mapping of the PUCCH to resource elements and 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 the PUCCH may be transmitting the PUCCH and the DMRS for the PUCCH.

[0116] The propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.

[0117] The downlink physical channel may correspond to a set of resource elements that convey information generated in a higher layer. The downlink physical channel may be a physical channel used in a downlink component carrier. The base station device 3 may transmit the downlink physical channel. The terminal device 1 may receive the downlink physical channel. In a wireless communication system according to one aspect of 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)

[0118] PBCH is a MIB (Master Information Block) and physical layer control information. The MIB may be transmitted to convey one or both of the physical layer control information and the MIB. Here, the physical layer control information is information generated in the physical layer. The MIB is a set of parameters arranged in a BCCH (Broadcast Control CHannel), which is a logical channel of the MAC layer. The BCCH is arranged in a BCH, which is a channel of the transport layer. The BCH may be arranged (mapped) in a PBCH. The terminal device 1 may receive a PBCH in which the MIB and one or both of the physical layer control information are arranged. The base station device 3 may transmit a PBCH in which the MIB and one or both of the physical layer control information are arranged.

[0119] For example, the physical layer control information may be configured with 8 bits. The physical layer control information may include at least some or all of the following 0A to 0D. 0A) Radio frame bit 0B) Half radio frame (half system frame, half frame) bit 0C) SS / PBCH block index bit 0D) Subcarrier offset bit

[0120] The radio frame bits are used to indicate the radio frame in which the PBCH is transmitted (the radio frame including the slot in which the PBCH is transmitted). The radio frame bits include 4 bits. The radio frame bits may be configured by 4 bits of a 10-bit radio frame indicator. For example, the radio frame indicator may be used at least to identify radio frames with index 0 to index 1023.

[0121] 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, the half radio frame may be configured to include five subframes. Alternatively, the half radio frame may be configured to include the first five subframes of the ten subframes included in the radio frame. Alternatively, the half radio frame may be configured to include the last five subframes of the ten subframes included in the radio frame.

[0122] The SS / PBCH block index bits are used to indicate an SS / PBCH block index. The SS / PBCH block index bits include 3 bits. The SS / PBCH block index bits may be composed of 3 bits of a 6-bit SS / PBCH block index indicator. The SS / PBCH block index indicator may be used at least to identify SS / PBCH blocks from index 0 to index 63.

[0123] The subcarrier offset bits are 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.

[0124] The PDCCH transmits downlink control information (DCI). The downlink control information may be transmitted to the base station apparatus 1 in order to receive the downlink control information. The downlink control information may be arranged in a PDCCH. The terminal apparatus 1 may receive the PDCCH in which the downlink control information is arranged. The base station apparatus 3 may transmit the PDCCH in which the downlink control information is arranged.

[0125] The downlink control information may be transmitted with a DCI format. The DCI format may be interpreted as a format of the downlink control information. The DCI format may be interpreted as a set of downlink control information set to a certain format of the downlink control information.

[0126] DCI format 0_0, DCI format 0_1, DCI format 1_0, and DCI format 1_1 are DCI formats. The uplink DCI format is a general term for DCI format 0_0 and DCI format 0_1. The downlink DCI format is a general term for DCI format 1_0 and DCI format 1_1.

[0127] DCI format 0_0 is used at least for scheduling a PUSCH arranged in a certain cell. DCI format 0_0 includes at least a part or all of fields 1A to 1E. 1A) Identifier field for DCI formats 1B) Frequency domain resource assignment field field) 1C) Time domain resource assignment field ) 1D) Frequency hopping flag field 1E) MCS field (Modulation and Coding Scheme field)

[0128] The DCI format specification field may indicate whether the DCI format including the DCI format specification field is an uplink DCI format or a downlink DCI format. That is, the DCI format specification field may be included in each of the uplink DCI format and the downlink DCI format. Here, the DCI format specification field included in the DCI format 0_0 may indicate 0.

[0129] The frequency domain resource allocation field included in DCI format 0_0 may be used to indicate the allocation of frequency resources for the PUSCH.

[0130] The time domain resource allocation field included in DCI format 0_0 may be used to indicate the allocation of time resources for the PUSCH.

[0131] The frequency hopping flag field may be used to indicate whether frequency hopping is applied to the PUSCH.

[0132] The MCS field included in the DCI format 0_0 may be used to indicate at least one or both of a modulation scheme and a target coding rate for the PUSCH. The size of the transport block (TBS) allocated to the PUSCH may be determined based on the target coding rate and the The modulation scheme for the received signal may be determined based on one or both of the modulation schemes.

[0133] DCI format 0_0 may not include fields used for CSI requests.

[0134] DCI format 0_0 may not include a carrier indicator field. That is, a serving cell to which an uplink component carrier in which a PUSCH scheduled by DCI format 0_0 is arranged may be the same as a serving cell of an uplink component carrier in which a PDCCH including the DCI format 0_0 is arranged. Based on detecting DCI format 0_0 in a downlink component carrier of a serving cell, the terminal device 1 may recognize that a PUSCH scheduled by the DCI format 0_0 is arranged in an uplink component carrier of the serving cell.

[0135] The DCI format 0_0 may not include a BWP field. Here, the DCI format 0_0 may be a DCI format for scheduling a PUSCH without changing an active uplink BWP. The terminal device 1 may recognize that the PUSCH is to be transmitted without switching the active uplink BWP based on detecting the DCI format 0_0 used for scheduling the PUSCH.

[0136] DCI format 0_1 ​​is used at least for scheduling a PUSCH allocated to a certain cell. DCI format 0_1 ​​includes at least a part or all of fields 2A to 2H. 2A) DCI format specific fields 2B) Frequency domain resource allocation field 2C) Uplink time domain resource allocation field 2D) Frequency hopping flag field 2E) MCS Field 2F) CSI request field 2G) BWP field 2H) Carrier indicator field

[0137] The DCI format specific field included in DCI format 0_1 ​​may indicate 0.

[0138] The frequency domain resource allocation field included in DCI format 0_1 ​​may be used to indicate the allocation of frequency resources for the PUSCH.

[0139] The time domain resource allocation field included in DCI format 0_1 ​​may be used to indicate the allocation of time resources for the PUSCH.

[0140] 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 the target coding rate for the PUSCH.

[0141] The BWP field of the DCI format 0_1 ​​is used to indicate an uplink BWP in which a PUSCH scheduled by the DCI format 0_1 ​​is arranged. That is, the DCI format 0_1 ​​may involve a change of the active uplink BWP. The terminal device 1 may recognize the uplink BWP in which the PUSCH is arranged based on detecting the DCI format 0_1 ​​used for scheduling the PUSCH.

[0142] The DCI format 0_1 ​​that does not include a BWP field may be a DCI format that schedules a PUSCH without changing an active uplink BWP. The terminal device 1 may recognize that the PUSCH is to be transmitted without switching the active uplink BWP based on detecting the DCI format D0_1 that is the DCI format 0_1 ​​used for scheduling a PUSCH and does not include a BWP field.

[0143] If the DCI format 0_1 ​​includes a BWP field, but the terminal device 1 does not support the function of switching the BWP by the DCI format 0_1, the BWP field may be ignored by the terminal device 1. That is, the terminal device 1 that does not support the function of switching the BWP may recognize that the PUSCH is transmitted without switching the active uplink BWP based on detecting the DCI format 0_1 ​​that is used for scheduling the PUSCH and includes the BWP field. Here, if the terminal device 1 supports the function of switching the BWP, it may report that "the terminal device 1 supports the function of switching the BWP" in the function information reporting procedure of the RRC layer.

[0144] The CSI request field is used to indicate the reporting of CSI.

[0145] When the DCI format 0_1 ​​includes a carrier indicator field, the carrier indicator field may be used to indicate an uplink component carrier on which the PUSCH is arranged. When the DCI format 0_1 ​​does not include a carrier indicator field, the uplink component carrier on which the PUSCH is arranged may be the same as the uplink component carrier on which the PDCCH including the DCI format 0_1 ​​used for scheduling the PUSCH is arranged. When the number of uplink component carriers configured in the terminal device 1 in a certain serving cell group is two or more (when uplink carrier aggregation is operated in a certain serving cell group), the number of bits of the carrier indicator field included in the DCI format 0_1 ​​used for scheduling the PUSCH arranged in the certain serving cell group may be one bit or more (for example, three bits). When the number of uplink component carriers configured in a terminal device 1 in a serving cell group is 1 (when uplink carrier aggregation is not operated in a serving cell group), the number of bits in the carrier indicator field included in DCI format 0_1 ​​used for scheduling a PUSCH placed in the serving cell group may be 0 bits (or, the carrier indicator field may not be included in DCI format 0_1 ​​used for scheduling a PUSCH placed in the serving cell group).

[0146] DCI format 1_0 is used at least for scheduling a PDSCH arranged in a certain cell. DCI format 1_0 includes at least a part or all of 3A to 3F. 3A) DCI format specific fields 3B) Frequency domain resource allocation field 3C) Time Domain Resource Allocation Field 3D) MCS field 3E) PDSCH_HARQ feedback timing indicator field 3F) PUCCH resource indicator field

[0147] The DCI format specific field included in DCI format 1_0 may indicate 1.

[0148] The frequency domain resource allocation field included in DCI format 1_0 may be used at least to indicate the allocation of frequency resources for the PDSCH.

[0149] The time domain resource allocation field included in DCI format 1_0 may be used at least to indicate the allocation of time resources for the PDSCH.

[0150] The MCS field included in DCI format 1_0 may be used to indicate at least one or both of a modulation scheme and a target coding rate for the PDSCH. The target coding rate may be a target coding rate for a transport block arranged in the PDSCH. The size of the transport block (TBS) arranged in the PDSCH may be determined based on the target coding rate and the target coding rate of the PDSCH. The modulation scheme for the received signal may be determined based on one or both of the modulation schemes.

[0151] The PDSCH_HARQ feedback timing indication field may be used to indicate an offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH.

[0152] The PUCCH resource indication field may be a field indicating an index of one or more PUCCH resources included in a PUCCH resource set. A PUCCH resource set may include one or more PUCCH resources.

[0153] DCI format 1_0 may not include a carrier indicator field. That is, a downlink component carrier on which a PDSCH scheduled by DCI format 1_0 is arranged may be the same as a downlink component carrier on which a PDCCH including the DCI format 1_0 is arranged. The terminal device 1 may recognize that a PDSCH scheduled by the DCI format 1_0 is arranged on a downlink component carrier based on detecting DCI format 1_0 in the downlink component carrier.

[0154] The DCI format 1_0 may not include a BWP field. Here, the DCI format 1_0 may be a DCI format for scheduling a PDSCH without changing an active downlink BWP. The terminal device 1 may recognize that the PDSCH is to be received without switching the active downlink BWP based on detecting the DCI format 1_0 used for scheduling the PDSCH.

[0155] DCI format 1_1 is used at least for scheduling a PDSCH arranged in a certain cell. DCI format 1_1 includes at least some or all of 4A to 4I. 4A) DCI format specific fields 4B) Frequency domain resource allocation field 4C) Time Domain Resource Allocation Field 4E) MCS Field 4F) PDSCH_HARQ feedback timing indication field 4G) PUCCH resource indication field 4H) BWP Field 4I) Career Indicator Field

[0156] The DCI format specific field included in DCI format 1_1 may indicate 1.

[0157] The frequency domain resource allocation field included in DCI format 1_1 may be used at least to indicate the allocation of frequency resources for the PDSCH.

[0158] The time domain resource allocation field included in DCI format 1_1 may be used at least to indicate the allocation of time resources for the PDSCH.

[0159] The MCS field included in DCI format 1_1 may be used at least to indicate one or both of the modulation scheme and the target coding rate for the PDSCH.

[0160] If DCI format 1_1 includes a PDSCH_HARQ feedback timing indication field, the PDSCH_HARQ feedback timing indication field may be used at least to indicate an offset from a slot including the last OFDM symbol of the PDSCH to a slot including 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 a slot including the last OFDM symbol of the PDSCH to a slot including the first OFDM symbol of the PUCCH may be specified by a higher layer parameter.

[0161] The PUCCH resource indication field may be a field indicating an index of one or more PUCCH resources included in a PUCCH resource set.

[0162] The BWP field of the DCI format 1_1 may be used to indicate a downlink BWP in which a PDSCH scheduled by the DCI format 1_1 is arranged. That is, the DCI format 1_1 may involve a change in the active downlink BWP. The terminal device 1 may recognize the downlink BWP in which the PUSCH is arranged based on detecting the DCI format 1_1 used for scheduling the PDSCH.

[0163] The DCI format 1_1 that does not include a BWP field may be a DCI format that schedules a PDSCH without changing an active downlink BWP. The terminal device 1 may recognize that the PDSCH is received without switching the active downlink BWP based on detecting the DCI format 1_1 that is used for scheduling a PDSCH and does not include a BWP field.

[0164] If the DCI format 1_1 includes a BWP field, but the terminal device 1 does not support the function of switching the BWP by the DCI format 1_1, the BWP field may be ignored by the terminal device 1. That is, the terminal device 1 that does not support the function of switching the BWP may recognize that the PDSCH is received without switching the active downlink BWP based on detecting the DCI format 1_1 that is used for scheduling the PDSCH and includes the BWP field. Here, if the terminal device 1 supports the function of switching the BWP, it may report that "the terminal device 1 supports the function of switching the BWP" in the function information reporting procedure of the RRC layer.

[0165] When DCI format 1_1 includes a carrier indicator field, the carrier indicator field may be used to indicate a downlink component carrier on which a PDSCH is arranged. When DCI format 1_1 does not include a carrier indicator field, the downlink component carrier on which a PDSCH is arranged may be the same as a downlink component carrier on which a PDCCH including a DCI format 1_1 used for scheduling the PDSCH is arranged. When the number of downlink component carriers configured in a terminal device 1 in a certain serving cell group is two or more (when downlink carrier aggregation is operated in a certain serving cell group), the number of bits of the carrier indicator field included in DCI format 1_1 used for scheduling a PDSCH arranged in the certain serving cell group may be one bit or more (for example, three bits). When the number of downlink component carriers configured in a terminal device 1 in a serving cell group is 1 (when downlink carrier aggregation is not operated in a serving cell group), the number of bits in the carrier indicator field included in DCI format 1_1 used for scheduling the PDSCH placed in the 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 serving cell group).

[0166] The PDSCH may be transmitted to transmit a transport block. The PDSCH may be used to transmit a transport block delivered by the DL-SCH. The PDSCH may be used to transmit a transport block. The transport block may be arranged in the PDSCH. A transport block corresponding to the DL-SCH may be arranged in the PDSCH. The base station device 3 may transmit the PDSCH. The terminal device 1 may receive the PDSCH.

[0167] 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:Synchronization signal) ·DL DMRS(DownLink DeModulation Reference Signal) ·CSI-RS(Channel State Information-Reference Signal) ·DL PTRS(DownLink Phase Tracking Reference Signal)

[0168] The synchronization signal may be used by the terminal device 1 to synchronize one or both of the frequency domain and the time domain of the downlink. The synchronization signal is a general term for a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).

[0169] FIG. 7 is a diagram showing an example of the configuration of an SS / PBCH block according to one embodiment of the present invention. In FIG. 7, the horizontal axis is the time axis (OFDM symbol index l sym), with the vertical axis indicating the frequency domain. Block 700 indicates a set of resource elements for the PSS. Block 720 indicates a set of resource elements for the SSS. Four blocks (blocks 710, 711, 712, and 713) indicate sets of resource elements for the PBCH and DMRS for the PBCH (DMRS related to the PBCH, DMRS included in the PBCH, and DMRS corresponding to the PBCH).

[0170] As shown in FIG. 7, the SS / PBCH block includes a PSS, an SSS, and a PBCH. The SS / PBCH block includes four consecutive OFDM symbols. The SS / PBCH block includes 240 subcarriers. The PSS is arranged in the 57th to 183rd subcarriers of the first OFDM symbol. The SSS is arranged in the 57th to 183rd subcarriers of the third OFDM symbol. The 1st to 56th subcarriers of the first OFDM symbol may be set to zero. The 184th to 240th subcarriers of the first OFDM symbol may be set to zero. The 49th to 56th subcarriers of the third OFDM symbol may be set to zero. The 184th to 192nd subcarriers of the third OFDM symbol may be set to zero. The PBCH is arranged in the 1st to 240th subcarriers of the second OFDM symbol, which are subcarriers in which the DMRS for the PBCH is not arranged. The PBCH is allocated to the 1st to 48th subcarriers of the third OFDM symbol, and to subcarriers where 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 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 DMRS for the PBCH is not allocated.

[0171] The antenna ports for the PSS, SSS, PBCH, and DMRS for the PBCH may be the same.

[0172] The PBCH on which a 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.

[0173] DL DMRS is a general term for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.

[0174] A set of antenna ports of DMRS for PDSCH (DMRS related to PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) may be given based on the set of antenna ports for the PDSCH, i.e., the set of antenna ports of DMRS for PDSCH may be the same as the set of antenna ports for the PDSCH.

[0175] 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 be transmitting the PDSCH and the DMRS for the PDSCH.

[0176] A propagation path of a PDSCH may be estimated from a 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 symbols of the PDSCH at an antenna port are transmitted may be estimated by the DMRS for the PDSCH.

[0177] The antenna port of the DMRS for the PDCCH (DMRS related to the PDCCH, DMRS included in the PDCCH, DMRS corresponding to the PDCCH) may be the same as the antenna port for the PDCCH.

[0178] A PDCCH may be estimated from a DMRS for the PDCCH. That is, a propagation path of a PDCCH may be estimated from a DMRS for the PDCCH. If the same precoder is applied (assumed to be applied, assumed to be applied) to a set of resource elements on which a symbol of a certain PDCCH is transmitted and a set of resource elements on which a symbol of a DMRS for the certain PDCCH is transmitted, a PDCCH on which a symbol of the PDCCH in a certain antenna port is transmitted may be estimated by the DMRS for the PDCCH.

[0179] The BCH (Broadcast CHannel), UL-SCH (Uplink-Shared CHannel), and DL-SCH (Downlink-Shared CHannel) are transport channels. A port channel defines the relationship between a physical layer channel and a MAC layer channel (also called a logical channel).

[0180] The BCH of the transport layer is mapped to the PBCH of the physical layer, i.e., the transport block carried by the BCH of the transport layer is delivered to the PBCH of the physical layer. The UL-SCH of the transport layer is mapped to the PUSCH of the physical layer, i.e., the transport block carried by the UL-SCH of the transport layer is delivered to the PUSCH of the physical layer. The DL-SCH of the transport layer is mapped to the PDSCH of the physical layer, i.e., the transport block carried by the DL-SCH of the transport layer is delivered to the PDSCH of the physical layer.

[0181] For each serving cell, one UL-SCH and one DL-SCH may be provided. The BCH may be provided for the PCell. The BCH does not have to be provided for the PSCell or SCell.

[0182] In the MAC layer, hybrid automatic repeat reQuest (HARQ) control is performed for each transport block.

[0183] BCCH (Broadcast Control CHannel), CCCH (Common Control CHannel), And DCCH (Dedicated Control CHannel) is a logical channel. For example, The BCCH is a channel of the RRC layer used for transmitting MIB or system information. A CCCH (Common Control CHannel) may be used for transmitting an RRC message common to a plurality of terminal devices 1. Here, the CCCH may be used, for example, for terminal devices 1 that are not RRC-connected. A DCCH (Dedicated Control CHannel) may be used at least for transmitting an RRC message dedicated to the terminal device 1. Here, the DCCH may be used, for example, for terminal devices 1 that are RRC-connected.

[0184] The upper layer parameters common to a plurality of terminal devices 1 are also called common upper layer parameters. Here, the common upper layer parameters may be defined as parameters specific to the serving cell. Here, the parameters specific to the serving cell may be parameters common to terminal devices (e.g., terminal devices 1-A, B, and C) in which the serving cell is configured.

[0185] For example, the common upper layer parameters may be included in an RRC message delivered on the BCCH. For example, the common upper layer parameters may be included in an RRC message delivered on the DCCH.

[0186] Among certain upper layer parameters, upper layer parameters different from the common upper layer parameters are also called dedicated upper layer parameters. Here, the dedicated upper layer parameters can provide dedicated RRC parameters to the terminal device 1-A in which the serving cell is set. In other words, the dedicated RRC parameters are upper layer parameters that can provide unique settings for each of the terminal devices 1-A, B, and C.

[0187] The BCCH of the logical channel is mapped to the BCH or DL-SCH of the transport layer. For example, a transport block including MIB information is delivered to the BCH of the transport layer. A transport block including system information other than MIB is delivered to the DL-SCH of the transport layer. A CCCH is mapped to the DL-SCH or UL-SCH. That is, a transport block mapped to a CCCH is delivered to the DL-SCH or UL-SCH. A DCCH is mapped to the DL-SCH or UL-SCH. That is, a transport block mapped to a DCCH is delivered to the DL-SCH or UL-SCH.

[0188] The RRC message includes one or more parameters managed in the RRC layer. Here, the parameters managed in the RRC layer are also referred to as RRC parameters. For example, the RRC message may include an MIB. The RRC message may also include system information. The RRC message may also include a message corresponding to a CCCH. The RRC message may also include a message corresponding to a DCCH. The RRC message including a message corresponding to a DCCH is also referred to as an individual RRC message.

[0189] The upper layer parameters are RRC parameters or parameters included in a Medium Access Control Element (MAC CE). The upper layer parameters are a general term for the parameters included in the MIB, system information, messages corresponding to CCCH, messages corresponding to DCCH, and MAC CE. The parameters included in MAC CE are sent by the MAC CE (Control Element) command. It is believed.

[0190] 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

[0191] The cell search is a procedure used by the terminal device 1 to synchronize with a certain cell in terms of the time domain and the frequency domain and detect a physical cell identity. That is, the terminal device 1 may perform the cell search to synchronize with a certain cell in terms of the time domain and the frequency domain and detect a physical cell ID.

[0192] The PSS sequence is based at least on the physical cell ID. The cell ID is based at least on the cell ID.

[0193] The SS / PBCH block candidates indicate resources on which transmission of the SS / PBCH block is permitted (possible, reserved, configured, defined, possible).

[0194] A set of SS / PBCH block candidates in a half radio frame is also called an SS burst set. The SS burst set is also called a transmission window, an SS transmission window, or a Discovery Reference Signal transmission window (DRS transmission window). The SS burst set is a general term including at least the first SS burst set and the second SS burst set.

[0195] The base station device 3 transmits SS / PBCH blocks of one or more indexes at a predetermined period. The terminal device 1 may detect at least one of the SS / PBCH blocks of the one or more indexes and attempt to decode the PBCH included in the SS / PBCH block.

[0196] Random access is a procedure that includes at least some or all of message 1, message 2, message 3, and message 4.

[0197] Message 1 is a procedure for transmitting a PRACH by a terminal device 1. The terminal device 1 transmits a PRACH in one PRACH opportunity selected from one or more PRACH opportunities based on at least an index of an SS / PBCH block candidate detected based on a cell search. Each of the PRACH opportunities is defined based on at least resources in the time domain and the frequency domain.

[0198] The terminal device 1 transmits one random access preamble selected from among the PRACH opportunities corresponding to the index of the SS / PBCH block candidate from which the SS / PBCH block is detected.

[0199] Message 2 is a CRC (Cyclic Redundancy Check) scrambled by terminal device 1 using RA-RNTI (Random Access - Radio Network Temporary Identifier). This is a procedure for attempting to detect DCI format 1_0 associated with the message 2. The terminal device 1 attempts to detect a PDCCH including the DCI format in a control resource set provided based on an MIB included in a PBCH included in an SS / PBCH block detected based on a cell search and in resources indicated based on a setting of a search space set. Message 2 is also called a random access response.

[0200] Message 3 is a procedure for transmitting a PUSCH scheduled by a random access response grant included in DCI format 1_0 detected by the procedure for message 2. Here, the random access response grant is indicated by a MAC CE included in a PDSCH scheduled by the DCI format 1_0.

[0201] 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.

[0202] Message 3 PUSCH retransmission is performed using TC-RNTI (Temporary Cell - Radio Network Interconnect). DCI format with scrambled CRC based on rk Temporary Identifier It is scheduled by port 0_0.

[0203] Message 4 is the C-RNTI (Cell - Radio Network Temporary Identifier), or 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.

[0204] Data communication is a general term for downlink communication and uplink communication.

[0205] In data communication, the terminal device 1 attempts to detect the PDCCH in resources specified based on the control resource set and the search space set (monitors the PDCCH).

[0206] A control resource set is a set of resources consisting of a certain number of resource blocks and a certain number of OFDM symbols. In the frequency domain, a control resource set may consist of continuous resources (non-interleaved mapping) or distributed resources. It may be composed of interleaver mapping.

[0207] A set of resource blocks constituting the control resource set may be indicated by a higher layer parameter. The number of OFDM symbols constituting the control resource set may be indicated by a higher layer parameter.

[0208] 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 be attempting to detect a PDCCH candidate in a search space set, may be attempting to detect a DCI format in a search space set, may be attempting to detect a PDCCH in a control resource set, may be attempting to detect a PDCCH candidate in a control resource set, or may be attempting to detect a DCI format in a control resource set.

[0209] The search space set is defined as a set of PDCCH candidates. The search space set may be a Common Search Space (CSS) set or a UE-specific Search Space (USS) set. The terminal device 1 selects a type 0 PDCCH common search space set (Type0 PDCCH common search space set), Type 0a PDCCH common search space set The UE attempts to detect PDCCH candidates in some or all of the Type0a PDCCH common search space set, the Type1 PDCCH common search space set, the Type2 PDCCH common search space set, the Type3 PDCCH common search space set, and / or the UE-specific search space set.

[0210] 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.

[0211] The CSS set is a collective term for the type 0 PDCCH common search space set, the type 0a PDCCH common search space set, the type 1 PDCCH common search space set, the type 2 PDCCH common search space set, and the type 3 PDCCH common search space set. The set is also referred to as a UE dedicated PDCCH search space set.

[0212] A search space set is associated with (contains, corresponds to) a control resource set. The index of the control resource set associated with the search space set may be indicated by a higher layer parameter.

[0213] 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

[0214] A monitoring occasion for a certain search area set is defined as a monitoring occasion for the certain search area set. The monitoring opportunity for a search space set may correspond to an OFDM symbol in which a first OFDM symbol of an associated control resource set is located. The monitoring opportunity for a search space set may correspond to a resource of a control resource set starting from a first OFDM symbol of the control resource set associated with the search space set. The monitoring opportunity for the search space set is given based on at least some or all of a PDCCH monitoring interval, a PDCCH monitoring pattern in a slot, and a PDCCH monitoring offset.

[0215] 8 is a diagram showing an example of a monitoring opportunity of the search area set according to one aspect of the present embodiment. In FIG. 8, a search area set 91 and a search area set 92 are set in a primary cell 301, a search area set 93 is set in a secondary cell 302, and a search area set 94 is set in a secondary cell 303.

[0216] In Figure 8, the solid white blocks in primary cell 301 indicate search area set 91, the solid black blocks in primary cell 301 indicate search area set 92, the blocks in secondary cell 302 indicate search area set 93, and the blocks in secondary cell 303 indicate search area set 94.

[0217] The monitoring interval of the search area set 91 is set to 1 slot, and the monitoring The offset is set to 0 slot, and the monitoring pattern of the search area set 91 is [1,0 ,0,0,0,0,0,1,0,0,0,0,0,0,0]. The monitoring opportunities for search region set 91 correspond to the first OFDM symbol (OFDM symbol #0) and the eighth OFDM symbol (OFDM symbol #7) in each of the slots.

[0218] The monitoring interval of the search area set 92 is set to 2 slots, the monitoring offset of the search area set 92 is set to 0 slots, and the monitoring pattern of the search area set 92 is [1,0 ,0,0,0,0,0,0,0,0,0,0,0,0,0,0]. The monitoring opportunity for search region set 92 corresponds to the first OFDM symbol (OFDM symbol #0) in each of the even slots.

[0219] The monitoring interval of the search area set 93 is set to 2 slots, the monitoring offset of the search area set 93 is set to 0 slots, and the monitoring pattern of the search area set 93 is [0,0 ,0,0,0,0,0,1,0,0,0,0,0,0,0]. The monitoring opportunity for search region set 93 corresponds to the eighth OFDM symbol (OFDM symbol #7) in each of the even slots.

[0220] The monitoring interval of the search area set 94 is set to 2 slots, the monitoring offset of the search area set 94 is set to 1 slot, and the monitoring pattern of the search area set 94 is [1,0 ,0,0,0,0,0,0,0,0,0,0,0,0,0,0]. The monitoring opportunity for search region set 94 corresponds to the first OFDM symbol (OFDM symbol #0) in each odd slot.

[0221] The Type 0 PDCCH common search space set may be used at least for DCI formats with a Cyclic Redundancy Check (CRC) sequence scrambled by a System Information-Radio Network Temporary Identifier (SI-RNTI).

[0222] The Type 0a PDCCH common search space set may be used at least for DCI formats with a Cyclic Redundancy Check (CRC) sequence scrambled by a System Information-Radio Network Temporary Identifier (SI-RNTI).

[0223] The Type 1 PDCCH common search space set may be used at least for DCI formats with a CRC sequence scrambled by a Random Access-Radio Network Temporary Identifier (RA-RNTI) and / or a CRC sequence scrambled by a Temporary Cell-Radio Network Temporary Identifier (TC-RNTI).

[0224] A Type 2 PDCCH common search space set may be used for DCI formats with a CRC sequence scrambled by a Paging-Radio Network Temporary Identifier (P-RNTI).

[0225] A Type 3 PDCCH common search space set may be used for a DCI format with a CRC sequence scrambled by a Cell-Radio Network Temporary Identifier (C-RNTI).

[0226] The UE dedicated PDCCH search space set may be used at least for DCI formats with CRC sequences scrambled by the C-RNTI.

[0227] In downlink communication, the terminal device 1 detects a downlink DCI format. The detected downlink DCI format is used at least for resource allocation of the PDSCH. The detected downlink DCI format is also called a downlink assignment. The terminal device 1 attempts to receive the PDSCH. Based on the PUCCH resource indicated based on the detected downlink DCI format, the terminal device 1 reports a HARQ-ACK corresponding to the PDSCH (a HARQ-ACK corresponding to a transport block included in the PDSCH) to the base station device 3.

[0228] In uplink communication, the terminal device 1 detects an uplink DCI format. The detected DCI format is used at least for resource allocation of a PUSCH. The detected uplink DCI format is also called an uplink grant. The terminal device 1 transmits the PUSCH.

[0229] In configured scheduling, an uplink grant for scheduling a PUSCH is configured for each transmission period of the PUSCH. When a PUSCH is scheduled by an uplink DCI format, part or all of the information indicated by the uplink DCI format may be indicated by an uplink grant configured in the case of configured scheduling.

[0230] PUSCH-Config may be a dedicated upper layer parameter. PUSCH-ConfigCommon may be a common upper layer parameter. PUSCH-Config may be set for each BWP for PUSCH transmission. PUSCH-Config may include a plurality of upper layer parameters related to PUSCH transmission. PUSCH-Config may be a UE-specific setting. For example, PUSCH-Config for the terminal device 1A, the terminal device 1B, and the terminal device 1C in one cell, or a plurality of upper layer parameters included in the PUSCH-Config may be different. PUSCH-ConfigCommon may be set for each BWP for PUSCH transmission. PUSCH-ConfigCommon may include a plurality of upper layer parameters related to PUSCH transmission. PUSCH-ConfigCommon may be a cell-specific setting. For example, PUSCH-ConfigCommon for the terminal device 1A, the terminal device 1B, and the terminal device 1C in one cell may be common. For example, PUSCH-ConfigCommon may be given by system information.

[0231] Repeated transmission may be applied to a PUSCH scheduled by a DCI. Also, repeated transmission may be applied to a PUSCH scheduled by a configured uplink grant. The PUSCH repetition type may be either PUSCH repetition type A or PUSCH repetition type B. The PUSCH repetition type may be configured by a higher layer parameter. The PUSCH repetition type may be based on the DCI format. For example, a first PUSCH repetition type for a PUSCH scheduled by DCI format 0_1 ​​may be different from a second PUSCH repetition type for a PUSCH scheduled by DCI format 0_2.

[0232] The number of repetitions for PUSCH repeat transmission may be set by a higher layer parameter. For example, the higher layer parameter numberOfRepetitions may be a parameter including the number of repetitions for PUSCH repeat transmission. In PUSCH repeat transmission corresponding to PUSCH repetition type A, the number of repetitions for the PUSCH repeat transmission may be determined by the value of the higher layer parameter numberOfRepetitions. In PUSCH repetition type A, the number of repetitions for a PUSCH whose transmission is indicated by a DCI format with a CRC scrambled by C-RNTI, MCS-C-RNTI, or CS-RNTI may be equal to numberOfRepetitions if there is numberOfRepetitions in the resource allocation table. When one PUSCH-Time Domain Resource Allocation includes one or more PUSCH-Allocations, the higher layer parameter numberOfRepetitions may be set for each PUSCH-Allocation. In addition, the PUSCH-Time Domain Resource Allocation may be referred to as a resource allocation table.

[0233] The upper layer parameter pusch-AggregationFactor may be a parameter indicating the number of repetitions for PUSCH repetition transmission. In PUSCH repetition transmission corresponding to PUSCH repetition type A, the number of repetitions for the PUSCH repetition transmission may be determined by the value of the upper layer parameter pusch-AggregationFactor. In PUSCH repetition type A, the number of repetitions of the PUSCH, the transmission of which is instructed by the DCI format with the CRC scrambled by the C-RNTI and any of the MCS-C-RNTI and CS-RNTI, may be equal to the pusch-AggregationFactor when the pusch-AggregationFactor is set. The pusch-AggregationFactor may be set for the PUSCH-Config.

[0234] The number of repetitions corresponding to PUSCH repetition type A may be the number of slots for PUSCH repeated transmission. Also, one TB may be repeated in one or more slots. PUSCH repetitions transmitted in different slots may be subject to the same OFDM symbol allocation.

[0235] PUSCH repetition transmission corresponding to PUSCH repetition type B may be based on nominal repetition and actual repetition.

[0236] The frequency hopping scheme may be set by a higher layer parameter. The higher layer parameters frequencyHopping, frequencyHoppingDCI-0-1, and frequencyHoppingDCI-0-2 may be parameters that provide a frequency hopping scheme for PUSCH. For example, a frequency hopping scheme corresponding to the frequency hopping for PUSCH may be set by frequencyHoppingDCI-0-2 in PUSCH-Config. Also, a frequency hopping scheme corresponding to the frequency hopping for PUSCH may be set by frequencyHopping in PUSCH-Config. Also, a frequency hopping scheme corresponding to the frequency hopping for PUSCH transmission set by frequencyHopping in configuredGrantConfig may be set. The frequency hopping scheme may be any of intra-slot frequency hopping, inter-slot frequency hopping, inter-repetition frequency hopping, and inter-bundle frequency hopping. Also, the frequency hopping interval corresponding to intra-slot frequency hopping may be within one slot. The frequency hopping interval corresponding to inter-slot frequency hopping may be one slot. The frequency hopping interval corresponding to inter-repetition frequency hopping may be based on nominal repetition. A frequency hopping interval corresponding to inter-bundle frequency hopping may be one or more slots. For example, the one or more slots may be contiguous. A bundle may be a time unit consisting of multiple slots. For example, the multiple slots may be contiguous. A bundle may be a number of slots corresponding to a frequency hopping interval. A bundle may be referred to as a hopping interval. If a frequency hopping interval for frequency hopping is one slot or more, the frequency hopping may be referred to as inter-bundle frequency hopping. If a frequency hopping interval for frequency hopping is greater than one slot, the frequency hopping may be referred to as inter-bundle frequency hopping.

[0237] For example, if a first higher layer parameter providing a frequency hopping scheme for the PUSCH provides inter-slot frequency hopping and a hopping interval (or bundle) is provided by a second higher layer parameter, inter-bundle frequency hopping may be applied to the PUSCH. For example, if the higher layer parameter providing a frequency hopping scheme for the PUSCH provides inter-bundle frequency hopping, inter-bundle frequency hopping may be applied to the PUSCH.

[0238] For example, the hopping interval may be provided by a higher layer parameter. For example, the higher layer parameter may be a dedicated higher layer parameter. For example, if the higher layer parameter provides a hopping interval N, a bundling of N slots may be applied for a PUSCH to which inter-bundle frequency hopping is applied. N may be an integer greater than 1. For example, if the higher layer parameter provides a hopping interval N, a bundling of N slots may not be applied for a PUSCH to which inter-bundle frequency hopping is not applied. For example, if the higher layer parameter includes one value, the bundling of N slots may not be applied for a PUSCH to which inter-bundle frequency hopping is not applied. The single value may be provided for one or both of the PUSCH and the PUCCH to which filtering is applied, the single value may be an integer greater than 1, and the single value may be a window length of a time domain window that is configured.

[0239] Whether or not to perform frequency hopping may be determined based at least on the DCI. Whether or not to apply frequency hopping for the PUSCH whose transmission is instructed by the DCI format may be determined based at least on a value of a frequency hopping flag field included in the DCI format. Whether or not to apply frequency hopping for the PUSCH whose transmission is instructed by the random access response grant may be determined based at least on a value of a frequency hopping flag field included in the random access response grant. For example, frequency hopping for the PUSCH may be performed based at least on the value of the frequency hopping flag field being 1.

[0240] When a value of a frequency hopping flag field included in a DCI format is 1, frequency hopping may not be performed for a PUSCH whose transmission is instructed by the DCI format. For example, when one or more higher layer parameters are provided and a value of a frequency hopping flag field included in a DCI format is 1, frequency hopping may not be performed for a PUSCH whose transmission is instructed by the DCI format. One of the one or more higher layer parameters may be a first higher layer parameter for determining whether DMRS bundling is applied. One of the one or more higher layer parameters may be a second higher layer parameter for determining a window length for a time domain window to be set. One of the one or more higher layer parameters may be a third higher layer parameter for determining a hopping interval for frequency hopping. One of the one or more higher layer parameters may be a fourth higher layer parameter for determining a frequency hopping scheme for frequency hopping.

[0241] Intra-slot frequency hopping may be applied to PUSCH transmission in one or more slots. For example, intra-slot frequency hopping may be applied to PUSCH repeated transmission. For PUSCH to which intra-slot frequency hopping is applied, the allocation of resource blocks may be switched between the first hop and the second hop for each of one or more OFDM symbols. For example, for PUSCH to which intra-slot frequency hopping is applied, the allocation of resource blocks may be switched between the first hop and the second hop for each of one or more OFDM symbols. In addition, when intra-slot frequency hopping is performed for PUSCH, the first hop and the second hop may be switched for each of one or more OFDM symbols. The difference between the position of the first resource block in the first hop and the position of the first resource block in the second hop is RB offset RB offset may be set by a higher layer parameter. The one or more OFDM symbols may be within one slot. The one or more OFDM symbols may be half the number of OFDM symbols for the PUSCH in one slot. Intra-slot frequency hopping may be applied to the PUSCH corresponding to PUSCH repetition type A.

[0242] Inter-slot frequency hopping may be applied to PUSCH transmission in multiple slots. For PUSCH to which inter-slot frequency hopping is applied, the allocation of resource blocks may be switched for each slot. For example, inter-slot frequency hopping may be applied to PUSCH repeated transmission. Also, when inter-slot frequency hopping is performed for PUSCH, the allocation of resource blocks may be switched between the first hop and the second hop for each slot. For example, For example, in a certain slot, slot index n μ s,f If n is an even number, the PUSCH transmission in a certain slot may correspond to the first hop. For example, in a certain slot, slot index n μs,f If , the PUSCH transmission in a slot may correspond to a second hop. Inter-slot frequency hopping may be applied to a PUSCH corresponding to either PUSCH repetition type A or PUSCH repetition type B.

[0243] Inter-repetition frequency hopping may be applied to a PUSCH corresponding to PUSCH repetition type B. For a PUSCH to which inter-repetition frequency hopping is applied, the first hop and the second hop may be switched based on the nominal repetition.

[0244] Inter-bundle frequency hopping may be applied to PUSCH transmission in multiple slots. For example, inter-bundle frequency hopping may be applied to PUSCH repetition transmission. For PUSCH to which inter-bundle frequency hopping is applied, the arrangement of resource blocks may be switched for each bundle. Also, when inter-bundle frequency hopping is performed for PUSCH, the arrangement of resource blocks may be switched between the first hop and the second hop for each bundle. A bundle may be one or more slots. For example, a bundle may be determined by a higher layer parameter. For example, a bundle may be determined based on the number of repetitions. For example, a bundle may be composed of consecutive UL slots. For example, a bundle may be composed of a special slot and a UL slot. Inter-bundle frequency hopping may be applied to PUSCH corresponding to either PUSCH repetition type A or PUSCH repetition type B.

[0245] For PUSCH where inter-bundle frequency hopping is applied, the bundle and slot index n μ s,f The allocation of resource blocks may be switched based on the slot index n μ s,fThe resource block arrangement may be switched between the first hop and the second hop based on the bundle. For example, if the bundle is N, the PUSCH repetition transmitted in the slot corresponding to the nth slot index to the n+N-1th slot index may correspond to one of the first hop and the second hop. The n may be an integer equal to or greater than 0. The N may be an integer equal to or greater than 1.

[0246] The UL slot may be a slot consisting of UL symbols. The special slot may be a slot consisting of UL symbols, flexible symbols, and DL symbols. The DL slot may be a slot consisting of DL symbols.

[0247] The UL symbol may be an OFDM symbol configured or indicated for the uplink in time division duplex. The UL symbol may be an OFDM symbol configured or indicated for the PUSCH, PUCCH, PRACH, or SRS. The UL symbol may be provided by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The UL symbol may be provided by the higher layer parameter tdd-UL-DL-ConfigurationDedicated. The UL slot may be provided by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The UL slot may be provided by the higher layer parameter tdd-UL-DL-ConfigurationDedicated.

[0248] The DL symbol may be an OFDM symbol configured or indicated for downlink in time division duplex. The DL symbol may be a PDSCH or PDCCH symbol. The DL symbols may be OFDM symbols configured or indicated for the UL-DL-Configuration. The DL symbols may be provided by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The DL symbols may be provided by the higher layer parameter tdd-UL-DL-ConfigurationDedicated. The DL slots may be provided by the higher layer parameter tdd-UL-DL-ConfigurationCommon. The DL slots may be provided by the higher layer parameter tdd-UL-DL-ConfigurationDedicated.

[0249] The flexible symbols may be OFDM symbols that are not configured or indicated as UL symbols or DL ​​symbols among OFDM symbols in a certain period, which may be a period given by a higher layer parameter dl-UL-TransmissionPeriodicity. The flexible symbols may be OFDM symbols that are configured or indicated for PDSCH, PDCCH, PUSCH, PUCCH, or PRACH.

[0250] The upper layer parameter tdd-UL-DL-ConfigurationCommon may be a parameter for setting a UL slot, a DL slot, or a special slot for each of one or more slots. The upper layer parameter tdd-UL-DL-ConfigurationDedicated may be a parameter for setting a UL symbol, a DL symbol, or a flexible symbol for each of the one or more slots. The tdd-UL-DL-ConfigurationCommon may be a common upper layer parameter. The tdd-UL-DL-ConfigurationDedicated may be a dedicated upper layer parameter.

[0251] The time domain window may indicate a time domain period. For example, the time domain window may be used for DMRS bundling. The terminal device 1 to which the DMRS bundling is applied may be enabled to perform channel estimation using DMRS included in two or more PUSCHs in a period based on the time domain window. The terminal device 1 to which the DMRS bundling is applied may be expected to maintain one or both of phase continuity and power consistency between two PUSCHs in a period based on the time domain window. The DMRS bundling may be referred to as joint channel estimation. The frequency hopping when the DMRS bundling is applied may be referred to as inter-bundle frequency hopping.

[0252] The time domain window may be a collective term for a configured time domain window and an actual time domain window. The configured time domain window may be called a nominal time domain window.

[0253] Whether DMRS bundling is applied may be configured by a higher layer parameter. The application of DMRS bundling may mean that one or both of the configured time domain window and the actual time domain window are enabled. For example, the application of DMRS bundling may mean that the higher layer parameter PUSCH-DMRS-Bundling is provided. For example, the non-application of DMRS bundling may mean that the higher layer parameter PUSCH-DMRS-Bundling is not provided.

[0254] The time domain window to be set may be composed of one or more consecutive slots. The time domain window to be set may be set by one or more higher layer parameters. For example, the one or more higher layer parameters may include one or more parameters that can enable the time domain window to be set. For example, the one or more higher layer parameters may include one or more parameters that indicate the length of the time domain window to be set. The length of the time domain window to be set may be referred to as a window length. The time domain window to be set may be composed of slots corresponding to the window length. The start position of the time domain window to be set may be determined based on the first PUSCH of the PUSCH repetition transmission. For example, the start position of the time domain window to be set may be the first slot of the PUSCH repetition transmission. For example, the start position of the time domain window to be set may be the first slot in which the PUSCH to which the PUSCH repetition type A is applied is transmitted. For example, the start position of the time domain window to be set may be a slot corresponding to the first transmission opportunity for the PUSCH to which the PUSCH repetition type A is applied. The length of the time domain window to be set may be determined by the window length. The length of the set time domain window may be determined based at least on the number of repetitions of the PUSCH to which the set time domain window is applied.

[0255] The window length may be provided by a higher layer parameter. The window length may be one or more slots. The window length may be one or more consecutive slots. When the window length is provided, the set time domain window may be determined based on the window length. The window length may be used as a bundle for inter-bundle frequency hopping. For example, either the first hop or the second hop may correspond to the multiple PUSCH transmissions in the set time domain window. The set time domain window and a part or both of the window length may be used for precoding. For example, the precoding applied to the multiple PUSCH transmissions in the set time domain window may be the same. The set time domain window and a part or both of the window length may be used for terminal adjustment of the terminal device 1. For example, a frequency synchronization error may not be corrected in the set time domain window. For example, a time timing synchronization error may not be corrected in the set time domain window. For example, an adjustment related to the virtualization of an antenna may not be made in the set time domain window. For example, an analog circuit controlled by a digital signal may not be adjusted in the set time domain window. For example, the high-frequency circuit may not be adjusted in the set time domain window. The adjustment of the high-frequency circuit may be some or all of the following: changing the operating point of the power amplifier, changing the gain of the power amplifier, phase synchronization of the oscillator, phase adjustment of two carrier waves, phase adjustment of the phase shifter, and stopping the power supply to the high-frequency circuit.

[0256] The length of the time domain window to be set may be a maximum period. The window length may be a maximum period. For example, the maximum period may be reported by the terminal device 1 to the base station device 3.

[0257] One or more window lengths may be configured in PUSCH-Config. Also, one or more window lengths may be configured in PUSCH-ConfigCommon. For example, one of the one or more window lengths may be determined based on a DCI format. For example, one of the one or more window lengths may be determined based on a time domain resource allocation field included in the DCI.

[0258] In Frequency Division Duplex, two or more configured time domain windows may be contiguous, for example, the last slot in a first configured time domain window may be contiguous with the first slot in a second configured time domain window.

[0259] In time division duplex, two or more configured time domain windows may be consecutive. Also, in time division duplex, two or more configured time domain windows may not be consecutive. For example, the start position of the configured time domain window may be determined based on at least one or both of tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated. For example, the start position of the configured time domain window may not include a DL slot.

[0260] A first configured time domain window of the one or more configured time domain windows may end just before a DL slot, and the configured time domain windows other than the first configured time domain window of the one or more configured time domain windows may be aligned with a period given by dl-UL-TransmissionPeriodicity.

[0261] The configured time domain window may end based on a certain slot index. For example, n μ s,f If is the first value, thenμ s,f The configured time domain window may end at the end of a slot corresponding to n. The configured time domain window may be applied to a PUSCH transmitted in the slot. The first value may be 0. The first value may be configured by a higher layer parameter. The first value may be determined based on a certain period. For example, the certain period may be used for processing performed every certain period. The certain period may be an integer multiple of a window length of the configured time domain window. The first value may be determined by the certain period and an offset. Also, n μ s,f If is the second value, then μ s,f The time domain window may end at the end of the slot corresponding to the first value. The difference between the first value and the second value may be the certain period.

[0262] The last configured time domain window of the one or more configured time domain windows may end in a slot corresponding to the last PUSCH in the PUSCH repeated transmission.

[0263] One or more actual time domain windows may be determined in the configured time domain window. The multiple actual time domain windows may not be contiguous with each other. The terminal device 1 may be expected to maintain phase continuity and power consistency in the actual time domain window. The actual time domain window may consist of one or more slots. Also, the actual time domain window may consist of one or more OFDM symbols.

[0264] The actual time domain window may be determined based on events occurring within the configured time domain window. The actual time domain window may be determined based on slots or OFDM symbols corresponding to events in the configured time domain window. The actual time domain window may not include slots or OFDM symbols corresponding to events in the configured time domain window. For example, the events may include reception of a downlink physical channel and some or all of transmission of a high priority channel, slot format indication, frequency hopping, and cancellation indication.

[0265] For example, the slot or OFDM symbol corresponding to the event may be a slot or OFDM symbol where PUSCH repeated transmission is cancelled. For example, the slot corresponding to the event may be a DL slot. For example, the slot or OFDM symbol corresponding to the event may be a slot or OFDM symbol including a DL reception opportunity. For example, the slot or OFDM symbol corresponding to the event may be a slot or OFDM symbol where a high priority channel is transmitted. For example, the slot corresponding to the event may be a slot indicated as a DL slot or a special slot by the slot format indication. For example, the OFDM symbol corresponding to the event may be an OFDM symbol indicated as a DL symbol or a flexible symbol by the slot format indication. For example, the slot corresponding to the event may be the n-th slot associated with the second hop when the n-1-th slot is associated with the first hop. For example, the slot corresponding to the event may be the n-th slot associated with the first hop when the n-1-th slot is associated with the second hop. For example, the OFDM symbol corresponding to an event may be the nth OFDM symbol associated with the second hop when the n-1th OFDM symbol is associated with the first hop. For example, the OFDM symbol corresponding to an event may be the nth OFDM symbol associated with the first hop when the n-1th slot is associated with the second hop.

[0266] The actual time domain window may include OFDM symbols in which the PUSCH is not transmitted. For example, the actual time domain window may include 13 consecutive OFDM symbols, and the terminal device 1 may not transmit an uplink physical channel and an uplink physical signal in the 13 consecutive OFDM symbols.

[0267] The terminal device 1 may maintain phase continuity and transmit power consistency in the actual time domain window based on the requirements for phase continuity and transmit power consistency. For example, the terminal device 1 may be expected to maintain phase continuity and transmit power consistency in the actual time domain window. For example, the uplink physical channel and the two OFDM symbols on which the uplink physical signal is transmitted in the actual time domain window may correspond to the same antenna port. For example, the terminal device 1 may determine whether to transmit so that a first channel on which a symbol in an antenna port is transmitted can be estimated from a second channel on which other symbols in the antenna port are transmitted based on whether the first channel and the second channel are included in an actual time domain window. For example, if the first channel and the second channel are included in the actual time domain window, the terminal device 1 may transmit so that the first channel on which a symbol in the antenna port is transmitted can be estimated from the second channel on which other symbols in the antenna port are transmitted. Also, when the first channel and the second channel are not included in the certain actual time domain window, the terminal device 1 may not transmit the first channel on which the symbol at the certain antenna port is transmitted so that the first channel can be estimated from the second channel on which the other symbol at the certain antenna port is transmitted. Here, the first channel may be different from the second channel. Or, the first channel may be the same as the second channel. Also, the first channel may be a repetition of a third channel, and the second channel may be another repetition of the third channel. For example, the terminal device 1 may not change a parameter related to precoding for PUCCH and / or PUSCH in the actual time domain window. For example, the parameter related to precoding may be a precoding matrix for spatial multiplexing. Also, the parameter related to precoding may be an upper layer parameter txConfig.The parameter related to the preceding is TPMI (Transmitted Precoder). The TPMI may be a TPMI (SRS Resource Indicator). The TPMI may be given by a DCI format. The parameter related to the precoding may be an SRI (SRS Resource Indicator). The terminal device 1 may apply one precoding to a repetition of PUSCH in the actual time domain window. For example, power control may be performed for the first PUSCH in the actual time domain window. Also, power control may not be performed for one or more PUSCHs other than the first PUSCH in the actual time domain window. For example, a value of the TPC command field may be applied for the first PUSCH in the actual time domain window. Also, a value of the TPC command field may not be applied for one or more PUSCHs other than the first PUSCH in the actual time domain window. The TPC command field for PUSCH may be included in DCI format 0_0, DCI format 0_1, DCI format 0_2, DCI format 2_2, DCI format 2_3, and part or all of the random access response grant. Furthermore, the terminal device 1 may not perform frequency hopping on the repetition of the PUSCH in the actual time domain window. Not performing the frequency hopping may mean that the repetition of the PUCCH in the actual time domain window is arranged at least in either the first hop or the second hop. Furthermore, the terminal device 1 may not perform beam switching on the PUSCH in the actual time domain window. Furthermore, the terminal device 1 may not change the setting of the modulation scheme for PUSCH transmission and the modulation order in the actual time domain window. Furthermore, the terminal device 1 may not change the index of the first resource block for PUSCH transmission and the number of resource blocks in the actual time domain window. Furthermore, one or more PUSCHs in the actual time domain window may correspond to the same time domain resource allocation. Furthermore, the same precoding may be applied to one or more PUSCHs in the actual time domain window.In addition, the same transmission power control may be applied to one or more PUSCHs in the actual time domain window. In addition, one or more PUSCHs in the actual time domain window may be at least arranged in the same resource block. In addition, between two non-consecutive PUSCHs in the actual time domain window, the terminal device 1 may transmit a baseband signal with an amplitude of 0.

[0268] Whether DMRS bundling is applied may be provided by a first higher layer parameter. A window length for a configured time domain window may be provided by a second higher layer parameter. A hopping interval for frequency hopping may be provided by a third higher layer parameter. A frequency hopping scheme for frequency hopping may be provided by a fourth higher layer parameter. The first higher layer parameter, the first higher layer parameter, the second higher layer parameter, the third higher layer parameter, and the fourth higher layer parameter may be different higher layer parameters.

[0269] 9 is a diagram showing an example of inter-bundle frequency hopping independent of a time domain window to be set according to an embodiment of the present invention. In an uplink BWP in an uplink carrier, the terminal device 1 transmits a PUSCH 920 in a slot 910, a PUSCH 921 in a slot 911, a PUSCH 922 in a slot 912, a PUSCH 923 in a slot 913, a PUSCH 924 in a slot 914, a PUSCH 925 in a slot 915, a PUSCH 926 in a slot 916, and a PUSCH 927 in a slot 917.

[0270] In FIG. 9, a configured time domain window 930 includes PUSCH 920, PUSCH 921, PUSCH 922, and PUSCH 923. A configured time domain window 931 includes PUSCH 924, PUSCH 925, PUSCH 926, and PUSCH 927. An actual time domain window 940 includes PUSCH 920 and PUSCH 921. An actual time domain window 941 includes PUSCH 922 and PUSCH 923. An actual time domain window 942 includes PUSCH 924 and PUSCH 925. An actual time domain window 943 includes PUSCH 926 and PUSCH 927. For example, the length of each configured time domain window in FIG. 9 may be 4. The length may also be provided by a higher layer parameter.

[0271] PUSCH 920, PUSCH 921, PUSCH 922, PUSCH 923, PUSCH 924, PUSCH 925, PUSCH 926, and PUSCH 927 may be PUSCH repetition transmissions. For example, the number of repetitions corresponding to the PUSCH repetition transmissions in FIG. 9 may be 8. For example, the PUSCH repetition transmissions in FIG. 9 may correspond to PUSCH repetition type A.

[0272] PUSCH 920, PUSCH 921, PUSCH 924, and PUSCH 925 are located in a resource block that includes PRB 900. PUSCH 922, PUSCH 923, PUSCH 926, and PUSCH 927 are located in a resource block that includes PRB 901. For example, the hopping interval for frequency hopping in FIG. 9 may be 2. For example, slot 910 may correspond to slot index 0. For example, the hopping interval for frequency hopping may be provided by a higher layer parameter.

[0273] Frequency hopping may not be performed in slot 911, frequency hopping may be performed in slot 912, frequency hopping may not be performed in slot 911, frequency hopping may be performed in slot 912, frequency hopping may not be performed in slot 911, frequency hopping may be performed in slot 912, frequency hopping may be performed in slot 911, frequency hopping may be performed in slot 912, and frequency hopping may not be performed in slot 911.

[0274] 10 is a diagram showing an example of inter-bundle frequency hopping depending on a time domain window set according to one aspect of the present embodiment. In an uplink BWP in an uplink carrier, the terminal device 1 transmits a PUSCH 1020 in a slot 1010, transmits a PUSCH 1021 in a slot 1011, transmits a PUSCH 1022 in a slot 1012, transmits a PUSCH 1023 in a slot 1013, transmits a PUSCH 1024 in a slot 1014, transmits a PUSCH 1025 in a slot 1015, and transmits a PUSCH 1027 in a slot 1017. The terminal device 1 does not need to transmit a PUSCH 1026 in a slot 1016.

[0275] 10, the configured time domain window 1030 includes PUSCH 1020, PUSCH 1021, PUSCH 1022, and PUSCH 1023. The configured time domain window 1031 includes PUSCH 1024, PUSCH 1025, PUSCH 1026, and PUSCH 1027. The actual time domain window 1040 includes PUSCH 1020, PUSCH 1021, PUSCH 1022, and PUSCH 1023. The actual time domain window 1041 includes PUSCH 1024 and PUSCH 1025. The actual time domain window 942 includes PUSCH 1027.

[0276] PUSCH 1020, PUSCH 1021, PUSCH 1022, PUSCH 1023, PUSCH 1024, PUSCH 1025, PUSCH 1026, and PUSCH 1027 may be PUSCH repetition transmissions. For example, the number of repetitions corresponding to the PUSCH repetition transmissions in FIG. 10 may be 8. For example, the PUSCH repetition transmissions in FIG. 10 may correspond to PUSCH repetition type A.

[0277] PUSCH 1020, PUSCH 1021, PUSCH 1022, and PUSCH 1023 are arranged in a resource block including PRB 1000. PUSCH 1024, PUSCH 1025, PUSCH 1026, and PUSCH 1027 are arranged in a resource block including PRB 1001. For example, the hopping interval for frequency hopping in FIG. 10 may be 4. For example, the hopping interval for frequency hopping may be the same as the length of the time domain window to be set. For example, the hopping interval for frequency hopping may be the same as the time domain window to be set. For example, the PUSCH in the time domain window to be set may correspond to one of the first hop and the second hop.

[0278] The PUSCH 1026 may not be transmitted in the slot 1016. For example, the PUSCH 1026 may overlap with a high priority uplink channel. For example, the transmission of the PUSCH 1026 may be indicated to be canceled. For example, the slot 1016 may be a slot corresponding to an event.

[0279] For example, when a first upper layer parameter for enabling DMRS bundling is provided, a second upper layer parameter for determining a time domain window to be set is provided, and a third upper layer parameter is provided, a hopping interval corresponding to frequency hopping for PUSCH may be determined based at least on the third upper layer parameter. However, in order to perform communication efficiently, a hopping interval of frequency hopping may be determined based at least on a combination of the first upper layer parameter, the second upper layer parameter, and the third upper layer parameter. The means 1 may be used to determine the hopping of frequency hopping based at least on the combination. For example, performing communication efficiently may be that a DMRS bundling gain is increased. For example, performing communication efficiently may be that many terminal devices are multiplexed.

[0280] In the means 1, the first upper layer parameter may be an upper layer parameter for determining whether DMRS bundling is enabled. The first upper layer parameter may be an upper layer parameter for determining whether DMRS bundling is applied for the PUSCH.

[0281] In the means 1, the second higher layer parameter may be a higher layer parameter used to determine a time domain window to be set. For example, the second higher layer parameter may be a higher layer parameter that provides a window length.

[0282] In the means 1, the third higher layer parameter may be a higher layer parameter used to determine a hopping interval for frequency hopping. For example, the third higher layer parameter may provide a bundle for inter-bundle frequency hopping. For example, the third higher layer parameter may provide a hopping interval for frequency hopping.

[0283] In the means 1, a hopping interval for frequency hopping may be determined based at least on a combination of a part or all of whether a first higher layer parameter is provided, whether a second higher layer parameter is provided, and whether a third higher layer parameter is provided. For example, a hopping interval for frequency hopping is determined based at least on a combination of whether a first higher layer parameter is provided, whether a second higher layer parameter is provided, and whether a third higher layer parameter is provided. This is also fine.

[0284] In the means 1, frequency hopping may be applied for the PUSCH. For example, in the means 1, frequency hopping may be applied for the PUSCH based at least on the DCI. For example, in the means 1, a value of a frequency hopping flag field included in the DCI indicating transmission of the PUSCH may be 1. In the means 1, a frequency hopping scheme for frequency hopping may be provided by a fourth higher layer parameter. For example, in the means 1, one of inter-slot frequency hopping and inter-bundle frequency hopping may be enabled by the fourth higher layer parameter. For example, in the means 1, a frequency hopping scheme corresponding to frequency hopping for the PUSCH may be determined based at least on a DCI format indicating transmission of the PUSCH.

[0285] For example, in the means 1, when a first higher layer parameter and a third higher layer parameter are provided, a hopping interval corresponding to frequency hopping for a PUSCH may be determined based on the third higher layer parameter, i.e., when DMRS bundling is applied to a PUSCH and a hopping interval corresponding to frequency hopping for the PUSCH is provided by higher layer parameters, the hopping interval may be applied.

[0286] For example, in the means 1, when the first higher layer parameter and the second higher layer parameter are provided and the third higher layer parameter is not provided, the hopping interval may be determined based on at least the second higher layer parameter. For example, the hopping interval in Fig. 10 may be determined based on the second higher layer parameter. That is, when DMRS bundling is applied to the PUSCH, a window length is provided for a time domain window configured for the DMRS bundling, and a hopping interval for frequency hopping for the PUSCH is not provided by the higher layer parameters, the hopping interval for frequency hopping may be the same as the window length.

[0287] For example, in the means 1, when the second higher layer parameter is provided and the first higher layer parameter and the third higher layer parameter are not provided, the hopping interval for the frequency hopping may be 1 slot. The hopping scheme corresponding to the frequency hopping may be inter-slot frequency hopping. That is, when DMRS bundling is not applied to the PUSCH, a window length is provided, and the hopping interval for the frequency hopping is not provided by the higher layer parameters, the frequency hopping may be inter-slot frequency hopping.

[0288] For example, in the means 1, when the first higher layer parameter is not provided, a hopping interval corresponding to frequency hopping for the PUSCH may be 1 slot, and a frequency hopping scheme corresponding to the frequency hopping may be inter-slot frequency hopping.

[0289] For example, in the means 1, when the first upper layer parameter is provided and the second upper layer parameter and the third upper layer parameter are not provided, the hopping interval corresponding to the frequency hopping may be 1 slot, and the frequency hopping manner corresponding to the frequency hopping may be inter-slot frequency hopping.

[0290] For example, in the means 1, when the first upper layer parameter is provided and the second upper layer parameter and the third upper layer parameter are not provided, the hopping for frequency hopping is The ping interval may be a single value. The single value may be the same as the length of the set time domain window. The single value may be half the length of the set time domain window. The single value may be the same as the number of repetitions of the PUSCH to which frequency hopping is applied. The single value may be half the number of repetitions of the PUSCH to which frequency hopping is applied. The single value may be the same as the maximum length of the set time domain window. The single value may be half the maximum length of the set time domain window. The single value may be a number of slots equal to or greater than two. For example, the single value may be two slots. For example, the single value may be five slots.

[0291] For example, in the means 1, when the first upper layer parameter, the second upper layer parameter, and the third upper layer parameter are not provided, the hopping interval for frequency hopping may be one slot.

[0292] For example, in the means 1, when any of the first upper layer parameter, the second upper layer parameter, and the third upper layer parameter is provided, the hopping interval for frequency hopping may be greater than one slot.

[0293] For example, in the means 1, one or more combinations of the combinations of whether or not the first upper layer parameter is provided, whether or not the second upper layer parameter is provided, and whether or not the third upper layer parameter is provided may not be expected. For example, the terminal device 1 may not expect the one or more combinations. For example, the base station device 3 may not perform setting by the upper layer parameters to be the one or more combinations. One of the one or more combinations may be that the first upper layer parameter is provided, and the second upper layer parameter and the third upper layer parameter are not provided. One of the one or more combinations may be that the first upper layer parameter is not provided, and the second upper layer parameter and the third upper layer parameter are provided. One of the one or more combinations may be that the first upper layer parameter and the third upper layer parameter are not provided, and the second upper layer parameter is provided. One of the one or more combinations may be that the first upper layer parameter and the second upper layer parameter are not provided, and the third upper layer parameter is provided. One of the one or more combinations may be that the first upper layer parameter and the second upper layer parameter are not provided, and the third upper layer parameter is provided. The provision of higher layer parameters corresponding to the one or more combinations may not be expected, or, if the provision of higher layer parameters corresponding to the one or more combinations is performed, the terminal device 1 may not expect frequency hopping to be applied.

[0294] For example, in the means 1, frequency hopping for the PUSCH may not be applied based on a combination of whether a first higher layer parameter is provided, whether a second higher layer parameter is provided, and whether a third higher layer parameter is provided. For example, if the first higher layer parameter is provided and the second higher layer parameter and the third higher layer parameter are not provided, frequency hopping may not be applied.

[0295] Various aspects of the device according to one aspect of this embodiment will now be described.

[0296] (1) In order to achieve the above object, the aspects of the present invention take the following measures. That is, a first aspect of the present invention is a terminal device, comprising: a receiving unit that receives a PDCCH including DCI instructing transmission of a PUSCH; a transmitting unit that transmits the PUSCH; and an upper layer processing unit that manages a first upper layer parameter, a second upper layer parameter, and a third upper layer parameter, wherein frequency hopping is applied for the PUSCH based on at least the DCI, the first upper layer parameter is an upper layer parameter for determining whether DMRS bundling is enabled for the PUSCH, and the second upper layer parameter is an upper layer parameter used to determine a time domain window to be set. and when the first upper layer parameter and the third upper layer parameter are provided, a hopping interval for the frequency hopping is determined based on the third upper layer parameter, and the hopping interval is determined based on at least a combination of whether the first upper layer parameter is provided, whether the second upper layer parameter is provided, and whether the third upper layer parameter is provided. When the first upper layer parameter and the second upper layer parameter are provided and the third upper layer parameter is not provided, the hopping interval may be determined based on the second upper layer parameter, and when the second upper layer parameter is provided and the first upper layer parameter and the third upper layer parameter are not provided, the hopping interval may be one slot. When the first upper layer parameter is not provided, the hopping interval may be one slot, and when the first upper layer parameter is provided and the second upper layer parameter and the third upper layer parameter are not provided, the hopping interval may be one slot. When the first higher layer parameter is provided and the second higher layer parameter and the third higher layer parameter are not provided, the hopping interval may be one of two slots and five slots. When the first higher layer parameter is provided and the second higher layer parameter and the third higher layer parameter are not provided, the hopping interval may be determined based at least on a number of repetitions for the PUSCH. When any of the first higher layer parameter, the second higher layer parameter, and the third higher layer parameter is provided, the hopping interval may be greater than one slot. One or more combinations of whether the first higher layer parameter is provided, whether the second higher layer parameter is provided, and whether the third higher layer parameter is provided may not be expected.

[0297] (2) A second aspect of the present invention is a base station device comprising: a transmitting unit that transmits a PDCCH including a DCI that instructs transmission of a PUSCH; a receiving unit that receives the PUSCH; and an upper layer processing unit that manages a first upper layer parameter, a second upper layer parameter, and a third upper layer parameter, wherein frequency hopping is applied for the PUSCH based at least on the DCI, the first upper layer parameter is an upper layer parameter for determining whether DMRS bundling is enabled for the PUSCH, and the second upper layer parameter is an upper layer parameter used to determine a time domain window to be set, and when the first upper layer parameter and the third upper layer parameter are provided, a hopping interval for the frequency hopping is determined based on the third upper layer parameter, and the hopping interval is determined based at least on a combination of whether the first upper layer parameter is provided, whether the second upper layer parameter is provided, and whether the third upper layer parameter is provided. When the first and second upper layer parameters are provided and the third upper layer parameters are not provided, the hopping interval may be determined based on the second upper layer parameters, and when the second and third upper layer parameters are provided and the first and third upper layer parameters are not provided, the hopping interval may be 1 slot. When the first upper layer parameters are not provided, the hopping interval may be 1 slot, and when the first upper layer parameters are provided and the second and third upper layer parameters are not provided, the hopping interval may be 1 slot. When the first upper layer parameters are provided and the second and third upper layer parameters are not provided, the hopping interval may be one of 2 slots and 5 slots. When the first upper layer parameters are provided and the second and third upper layer parameters are not provided, the hopping interval may be determined based at least on a number of repetitions for the PUSCH.When any of the first higher layer parameter, the second higher layer parameter, and the third higher layer parameter is provided, the hopping interval may be greater than one slot. One or more of the combinations of whether the first higher layer parameter is provided or not, whether the second higher layer parameter is provided or not, and whether the third higher layer parameter is provided or not may not be expected.

[0298] The base station device 3 and the program operating in the terminal device 1 according to the present invention control a CPU (Central Processing Unit) and the like so as to realize the functions of the above-mentioned embodiment according to the present invention. The information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing, and then read and written to various ROMs such as Flash ROM (Read Only Memory) or HDD. D (Hard Disk Drive) and is read, modified, and written by the CPU as necessary. The inclusion takes place.

[0299] In addition, a part of the terminal device 1 and the base station device 3 in the above-mentioned embodiment may be realized by a computer. In that case, a program for realizing this control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed to realize the control function.

[0300] The "computer system" here refers to a computer system built into the terminal device 1 or base station device 3, and includes hardware such as an OS and peripheral devices. Also, the "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into the computer system.

[0301] Furthermore, the term "computer-readable recording medium" may include a medium that dynamically stores a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, and a medium that stores a program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or client in such a case. The above program may be one that realizes part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

[0302] Furthermore, the base station device 3 in the above-described embodiment can also be realized as an aggregate (device group) consisting of a plurality of devices. Each of the devices constituting the device group may have some or all of the functions or functional blocks of the base station device 3 according to the above-described embodiment. It is sufficient for the device group to have all of the functions or functional blocks of the base station device 3. Furthermore, the terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.

[0303] In addition, the base station device 3 in the above-mentioned embodiment may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or an NG-RAN (NextGen RAN, NR RAN). In addition, the base station device 3 in the above-mentioned embodiment may have a part or all of the functions of an upper node for an eNodeB and / or a gNB.

[0304] In addition, some or all of the terminal device 1 and base station device 3 in the above-mentioned embodiment may be realized as an LSI, which is typically an integrated circuit, or may be realized as a chip set. Each functional block of the terminal device 1 and base station device 3 may be individually formed into a chip, or some or all of them may be integrated into a chip. The integrated circuit method is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. Furthermore, if an integrated circuit technology that replaces LSI appears due to advances in semiconductor technology, it is also possible to use an integrated circuit based on that technology.

[0305] In addition, in the above-described embodiment, a terminal device is described as an example of a communication device, but the present invention is not limited to this and can also be applied to terminal devices or communication devices such as stationary or non-movable electronic devices installed indoors or outdoors, for example, AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other household appliances.

[0306] Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like within the scope of the gist of the present invention are also included. Furthermore, the present invention can be modified in various ways within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. Furthermore, configurations in which elements described in the above embodiments are replaced with elements that have the same effect are also included. [Explanation of symbols]

[0307] 1(1A, 1B, 1C) Terminal equipment 3 Base station equipment 10, 30 Radio transmitter / receiver 10a, 30a Wireless transmitter 10b, 30b Wireless receiver 11, 31 Antenna section 12, 32 RF section 13, 33 Baseband section 14, 34 Upper layer processing unit 15, 35 Media access control layer processing unit 16, 36 Radio resource control layer processing unit 91, 92, 93, 94 Search area set 300 Component Carriers 301 Primary Cell 302, 303 Secondary Cell A set of resource elements for 700 PSS 710, 711, 712, 713 Set of resource elements for PBCH and DMRS for PBCH 720 Set of Resource Elements for SSS 3000 points 3001, 3002 Resource Grid 3003, 3004 BWP 3011, 3012, 3013, 3014 offset 3100, 3200 common resource block set 900, 901, 1000, 1001 PRB 910, 911, 912, 913, 914, 915, 916, 917, 1010, 1011, 1012, 1013, 1014, 1015, 1016, 1017 slots 920, 921, 922, 923, 924, 925, 926, 927, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1027 PUSCH 930, 931, 1030, 1031 Time domain window to be set 940, 941, 942, 943, 1040, 1041, 1042 Actual time domain window

Claims

1. A receiving unit that receives a PDCCH including a DCI that instructs transmission of a PUSCH; A transmission unit that transmits the PUSCH; An upper layer processing unit that manages a first upper layer parameter, a second upper layer parameter, and a third upper layer parameter, frequency hopping is applied for the PUSCH based at least on the DCI; The first higher layer parameter is a higher layer parameter for determining whether DMRS bundling is enabled for the PUSCH, the second higher layer parameter is a higher layer parameter used to determine a time domain window to be set; if the first higher layer parameter and the third higher layer parameter are provided, a hopping interval for the frequency hopping is determined based on the third higher layer parameter; The hopping interval is determined based at least on a combination of whether the first higher layer parameter is provided, whether the second higher layer parameter is provided, and whether the third higher layer parameter is provided. Terminal device.

2. if the first higher layer parameter and the second higher layer parameter are provided and the third higher layer parameter is not provided, the hopping interval is determined based on the second higher layer parameter; If the second higher layer parameter is provided and the first higher layer parameter and the third higher layer parameter are not provided, the hopping interval is one slot. The terminal device according to claim 1 .

3. If the first higher layer parameter is not provided, the hopping interval is one slot; If the first higher layer parameter is provided and the second higher layer parameter and the third higher layer parameter are not provided, the hopping interval is one slot. The terminal device according to claim 1 or 2.

4. When the first higher layer parameter is provided and the second higher layer parameter and the third higher layer parameter are not provided, the hopping interval is either 2 slots or 5 slots. The terminal device according to claim 1 or 2.

5. When the first higher layer parameter is provided and the second higher layer parameter and the third higher layer parameter are not provided, the hopping interval is determined based at least on a number of repetitions for the PUSCH. The terminal device according to claim 1 or 2.

6. When any of the first upper layer parameter, the second upper layer parameter, and the third upper layer parameter is provided, the hopping interval is greater than one slot. The terminal device according to claim 1 .

7. the combination of whether the first upper layer parameter is provided, whether the second upper layer parameter is provided, and whether the third upper layer parameter is provided; One or more of the combinations are not expected. A terminal device according to claim 1, claim 2, claim 3, claim 4, claim 5, or claim 6.

8. A transmitter that transmits a PDCCH including a DCI that instructs transmission of a PUSCH; A receiving unit that receives the PUSCH; An upper layer processing unit that manages a first upper layer parameter, a second upper layer parameter, and a third upper layer parameter, frequency hopping is applied for the PUSCH based at least on the DCI; The first higher layer parameter is a higher layer parameter for determining whether DMRS bundling is enabled for the PUSCH, the second higher layer parameter is a higher layer parameter used to determine a time domain window to be set; if the first higher layer parameter and the third higher layer parameter are provided, a hopping interval for the frequency hopping is determined based on the third higher layer parameter; The hopping interval is determined based at least on a combination of whether the first higher layer parameter is provided, whether the second higher layer parameter is provided, and whether the third higher layer parameter is provided. Base station equipment.

9. if the first higher layer parameter and the second higher layer parameter are provided and the third higher layer parameter is not provided, the hopping interval is determined based on the second higher layer parameter; If the second higher layer parameter is provided and the first higher layer parameter and the third higher layer parameter are not provided, the hopping interval is one slot. The base station apparatus according to claim 8.

10. If the first higher layer parameter is not provided, the hopping interval is one slot; If the first higher layer parameter is provided and the second higher layer parameter and the third higher layer parameter are not provided, the hopping interval is one slot. The base station device according to claim 8 or 9.

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