WO2021153493A1 - 端末装置、基地局装置、および、通信方法 - Google Patents

端末装置、基地局装置、および、通信方法 Download PDF

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Publication number
WO2021153493A1
WO2021153493A1 PCT/JP2021/002416 JP2021002416W WO2021153493A1 WO 2021153493 A1 WO2021153493 A1 WO 2021153493A1 JP 2021002416 W JP2021002416 W JP 2021002416W WO 2021153493 A1 WO2021153493 A1 WO 2021153493A1
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WIPO (PCT)
Prior art keywords
dmrs
pusch
slot
slots
dci format
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Ceased
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PCT/JP2021/002416
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English (en)
French (fr)
Japanese (ja)
Inventor
友樹 吉村
翔一 鈴木
中嶋　大一郎
会発 林
渉 大内
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Sharp Corp
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Sharp Corp
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Priority to JP2021574016A priority Critical patent/JP7696842B2/ja
Publication of WO2021153493A1 publication Critical patent/WO2021153493A1/ja
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to a terminal device, a base station device, and a communication method.
  • the present application claims priority with respect to Japanese Patent Application No. 2020-012257 filed in Japan on January 29, 2020, the contents of which are incorporated herein by reference.
  • LTE Long Term Evolution
  • EUTRA Evolved Universal Terrestrial Radio Access is a third generation partnership project (3GPP: 3 rd It is being considered in the Generation Partnership Project).
  • 3GPP 3 rd It is being considered in the Generation Partnership Project.
  • the base station device is also called an eNodeB (evolved NodeB), and the terminal device is also called a UE (User Equipment).
  • LTE is a cellular communication system in which a plurality of areas covered by a base station apparatus are arranged in a cell shape. A single base station device may manage multiple serving cells.
  • NR New Radio
  • IMT International Mobile Telecommunication
  • ITU International Telecommunication Union
  • Non-Patent Document 1 NR is required to meet the requirements assuming three scenarios of eMBB (enhanced Mobile BroadBand), mMTC (massive Machine Type Communication), and URLLC (Ultra Reliable and Low Latency Communication) within the framework of a single technology. There is.
  • Non-Patent Document 2 the expansion of services supported by NR is being studied.
  • One aspect of the present invention provides a terminal device that efficiently communicates, a communication method used for the terminal device, a base station device that efficiently communicates, and a communication method used for the base station device.
  • the first aspect of the present invention is a terminal device including a receiving unit that receives a DCI format used for scheduling PUSCH and a transmitting unit that transmits the PUSCH in a plurality of slots.
  • the size of the transport block is given based on the target code rate indicated by the DCI format, the target code rate is 1 or more, the PUSCH effective code rate is 1 or less, and the effective code rate is 1.
  • the rate is the size of the transport block divided by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.
  • the second aspect of the present invention is a terminal device, which includes a receiving unit that receives the DCI format used for scheduling the PUSCH and a transmitting unit that transmits the PUSCH, and has a target coding rate.
  • a transport included in the PUSCH determined at least based on the value of the MCS field contained in the DCI format, and when the PUSCH is placed in a plurality of slots, at least based on the target code rate and the first operator.
  • the size of the block is determined, and when the PUSCH is arranged in one slot, the size of the transport block contained in the PUSCH is determined based on at least the target code rate, and the size of the transport block is determined.
  • the first operator is not used for the determination.
  • a third aspect of the present invention is a terminal device that transmits the one or more PUSCHs in a plurality of slots with a receiving unit that receives the DCI format used for scheduling one or more PUSCHs.
  • a DMRS comprising a transmitter and associated with any or all of the one or more PUSCHs is located in a first set of the plurality of slots, the first set being the plurality.
  • the DMRS is not arranged in slots other than the first set among the plurality of slots, including from the first slot to the X slot of 1) upper layer signal, 2) the DCI format, Alternatively, the value of X is determined at least based on the number of the plurality of slots, and in the slot in which the DMRS is placed, the pattern of the OFDM symbol in which the DMRS is placed is the PUSCH of the time region included in the DCI format. Given based on resource allocation information.
  • a fourth aspect of the present invention is a terminal device that transmits the one or more PUSCHs in a plurality of slots with a receiving unit that receives the DCI format used for scheduling one or more PUSCHs.
  • n is an integer, 1) the signal of the upper layer, 2) the DCI format, or the value of X is determined at least based on the number of the plurality of slots, and the DMRS is arranged.
  • the pattern of the OFDM symbol in which the DMRS is placed is given based on the PUSCH resource allocation information of the time region included in the DCI format.
  • a fifth aspect of the present invention is a base station apparatus including a transmitting unit that transmits a DCI format used for scheduling PUSCH and a receiving unit that receives the PUSCH in a plurality of slots.
  • the size of the transport block is given based on the target code rate indicated by the DCI format, the target code rate is 1 or more, the effective code rate of the PUSCH is 1 or less, and the effective code.
  • the conversion rate is a value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.
  • a sixth aspect of the present invention is a base station apparatus including a transmitting unit that transmits a DCI format used for scheduling PUSCH and a receiving unit that receives the PUSCH, and has a target coding rate. Is determined at least based on the value of the MCS field included in the DCI format, and when the PUSCH is arranged in a plurality of slots, the transformer included in the PUSCH based on at least the target code rate and the first operator. The size of the port block is determined, and when the PUSCH is arranged in one slot, the size of the transport block contained in the PUSCH is determined based on at least the target code rate, and the size of the transport block is determined. The first operator is not used to determine.
  • a seventh aspect of the present invention is a base station apparatus, in which a transmitter for transmitting the DCI format used for scheduling one or a plurality of PUSCHs and a plurality of slots receive the one or a plurality of PUSCHs.
  • the DMRS associated with any or all of the one or more PUSCHs is located in the first set of the plurality of slots, the first set being the said.
  • the DMRS is not arranged in a slot other than the first set among the plurality of slots including from the first slot of the plurality of slots to the X slot, and the terminal device has 1) an upper layer signal, 2).
  • the DCI format includes the pattern of the OFDM symbol in which the value of X is determined based on at least the number of the DCI format or the plurality of slots and the DMRS is arranged in the slot in which the DMRS is arranged. It is given based on the PUSCH resource allocation information of the time area.
  • An eighth aspect of the present invention is a base station apparatus, which receives the one or more PUSCHs in a plurality of slots and a transmission unit that transmits a DCI format used for scheduling one or a plurality of PUSCHs.
  • n is an integer
  • the terminal device determines the value of X based on at least 1) the signal of the upper layer, 2) the DCI format, or the number of the plurality of slots.
  • the pattern of the OFDM symbol in which the DMRS is placed is given based on the PUSCH resource allocation information of the time region included in the DCI format.
  • a ninth aspect of the present invention is a communication method used for a terminal device, wherein a step of receiving a DCI format used for scheduling a PUSCH and a step of transmitting the PUSCH in a plurality of slots are performed.
  • the size of the transport block is given based on the target code rate indicated by the DCI format, the target code rate is 1 or more, the effective code rate of the PUSCH is 1 or less, and the above.
  • the effective coding rate is a value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.
  • a tenth aspect of the present invention is a communication method used for a terminal device, which includes a step of receiving a DCI format used for scheduling a PUSCH and a step of transmitting the PUSCH, and includes a target code.
  • the conversion rate is determined at least based on the value of the MCS field included in the DCI format, and when the PUSCH is arranged in a plurality of slots, it is included in the PUSCH based on at least the target coding rate and the first operator.
  • the size of the transport block is determined, and when the PUSCH is arranged in one slot, the size of the transport block contained in the PUSCH is determined based on at least the target code rate, and the size of the transport block is determined.
  • the first operator is not used to determine the size.
  • An eleventh aspect of the present invention is a communication method used in a terminal device, wherein a step of receiving a DCI format used for scheduling one or a plurality of PUSCHs, and the one or a plurality of the above-mentioned one or a plurality of slots.
  • the DMRS associated with any or all of the one or more PUSCHs comprising the step of transmitting the PUSCHs is located in the first set of the plurality of slots, the first set of which ,
  • the DMRS is not arranged in a slot other than the first set among the plurality of slots including from the first slot to the X slot of the plurality of slots, and the terminal device is 1) an upper layer.
  • the value of X is determined at least based on the DCI format or the number of the plurality of slots, and in the slot where the DMRS is placed, the pattern of the OFDM symbol in which the DMRS is placed is the DCI. It is given based on the PUSCH resource allocation information of the time area included in the format.
  • a twelfth aspect of the present invention is a communication method used in a terminal device, wherein a step of receiving a DCI format used for scheduling one or a plurality of PUSCHs, and the one or a plurality of the above-mentioned one or a plurality of slots.
  • the terminal device determines the value of X based on at least 1) the signal of the upper layer, 2) the DCI format, or the number of the plurality of slots. Then, in the slot in which the DMRS is placed, the pattern of the OFDM symbol in which the DMRS is placed is given based on the PUSCH resource allocation information in the time region included in the DCI format.
  • a thirteenth aspect of the present invention is a communication method used for a base station apparatus, wherein a step of transmitting a DCI format used for scheduling a PUSCH, a step of receiving the PUSCH in a plurality of slots, and a step of receiving the PUSCH in a plurality of slots.
  • the size of the transport block is given based on the target code rate indicated by the DCI format, the target code rate is 1 or more, and the effective code rate of the PUSCH is 1 or less.
  • the effective coding rate is a value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.
  • a fourteenth aspect of the present invention is a communication method used for a base station apparatus, which includes a step of transmitting a DCI format used for scheduling a PUSCH and a step of receiving the PUSCH, and is a target.
  • the coding rate is determined at least based on the value of the MCS field included in the DCI format, and when the PUSCH is arranged in a plurality of slots, the coding rate is determined on the PUSCH at least based on the target coding rate and the first operator.
  • the size of the transport block included is determined, and when the PUSCH is arranged in one slot, the size of the transport block contained in the PUSCH is determined based on at least the target code rate, and the transport block is determined.
  • the first operator is not used to determine the size of the.
  • a fifteenth aspect of the present invention is a communication method used in a base station apparatus, wherein a step of transmitting a DCI format used for scheduling one or a plurality of PUSCHs, and the one or a plurality of the above one or a plurality of slots.
  • DMRS associated with any or all of the one or more PUSCHs comprising the step of receiving the PUSCHs of the first set of the plurality of slots. Does include from the first slot to the X slot of the plurality of slots, the DMRS is not arranged in a slot other than the first set among the plurality of slots, and the terminal device is 1) an upper layer.
  • the value of X is determined at least based on the DCI format or the number of the plurality of slots, and in the slot where the DMRS is placed, the pattern of the OFDM symbol in which the DMRS is placed is the DCI. It is given based on the PUSCH resource allocation information of the time area included in the format.
  • a sixteenth aspect of the present invention is a communication method used in a base station apparatus, the step of transmitting a DCI format used for scheduling one or more PUSCHs, and the one or more in a plurality of slots.
  • n is an integer
  • the terminal device determines the value of X based on at least 1) an upper layer signal, 2) the DCI format, or the number of the plurality of slots. Then, in the slot in which the DMRS is placed, the pattern of the OFDM symbol in which the DMRS is placed is given based on the PUSCH resource allocation information in the time region included in the DCI format.
  • the terminal device can efficiently communicate.
  • the base station apparatus can efficiently communicate.
  • Floor (C) may be a floor function for a real number C.
  • floor (C) may be a function that outputs the maximum integer in the range that does not exceed the real number C.
  • ceil (D) may be a ceiling function for a real number D.
  • ceil (D) may be a function that outputs the smallest integer in the range not less than the real number D.
  • mod (E, F) may be a function that outputs the remainder of dividing E by F.
  • the mod (E, F) may be a function that outputs a value corresponding to the remainder obtained by dividing E by F.
  • exp (G) e ⁇ G.
  • e is the number of Napiers.
  • H ⁇ I indicates H to the I power.
  • max (J, K) is a function that outputs the maximum value of J and K.
  • 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.
  • min (L, M) is a function that outputs L or M when L and M are equal.
  • round (N) is a function that outputs an integer value closest to N.
  • At least OFDM Orthogonal Frequency Division Multiplex
  • the OFDM symbol is a unit of the OFDM time domain.
  • the OFDM symbol comprises at least one or more subcarriers.
  • the OFDM symbol is converted into a time-continuous signal in the baseband signal generation.
  • CP-OFDM Cyclic Prefix-Orthogonal Frequency Division Multiplex
  • DFT-s-OFDM Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplex
  • DFT-s-OFDM may be given by applying Transform precoding to CP-OFDM.
  • the OFDM symbol may be a name including a CP added to the OFDM symbol. That is, a certain OFDM symbol may be configured to include the certain OFDM symbol and the CP added to the certain OFDM symbol.
  • FIG. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment.
  • the wireless communication system includes at least terminal devices 1A to 1C and a base station device 3 (BS # 3: Base station # 3).
  • BS # 3 Base station # 3
  • the terminal devices 1A to 1C are also referred to as a terminal device 1 (UE # 1: UserEquipment # 1).
  • 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 composed of a plurality of transmitting devices, each of the plurality of transmitting devices may be arranged at a different position.
  • the base station apparatus 3 may provide one or more serving cells.
  • Serving cells may be defined as a set of resources used for wireless communication. Serving cells are also referred to as cells.
  • the serving cell may be configured to include at least one downlink component carrier (downlink carrier) and / or one uplink component carrier (uplink carrier).
  • the serving cell may be configured to include at least two or more downlink component carriers and / or two or more uplink component carriers.
  • the downlink component carrier and the uplink component carrier are also referred to as component carriers (carriers).
  • one resource grid may be given for one component carrier.
  • one resource grid may be given for one component carrier and one subcarrier spacing configuration ⁇ .
  • the setting ⁇ of the subcarrier interval is also referred to as numerology.
  • the resource grid contains N size, ⁇ grid, x N RB sc subcarriers.
  • the resource grid starts from the common resource blocks N start, ⁇ grid, x .
  • the common resource blocks N start, ⁇ grid, and x are also referred to as reference points of the resource grid.
  • the resource grid contains N subframes, ⁇ symbs of OFDM symbols.
  • x is a subscript indicating the transmission direction, and indicates either a downlink or an uplink.
  • One resource grid is given for a set of antenna ports p, a subcarrier spacing setting ⁇ , and a transmission direction x.
  • N size, ⁇ grid, x and N start, ⁇ grid, x are given at least based on the upper layer parameter (CarrierBandwidth).
  • the upper layer parameters are also referred to as SCS specific carriers.
  • One resource grid corresponds to one SCS-specific carrier.
  • One component carrier may include one or more SCS-specific carriers.
  • the SCS-specific carrier may be included in the system information. For each SCS-specific carrier, one subcarrier spacing setting ⁇ may be given.
  • the setting ⁇ of the subcarrier interval may indicate any of 0, 1, 2, 3, or 4.
  • FIG. 2 is an example showing the relationship between the setting ⁇ of the subcarrier interval, the number of OFDM symbols per slot N slot symb , and the CP (cyclic Prefix) setting according to one aspect of the present embodiment.
  • N slot symb 14
  • N frame 20
  • ⁇ slot 40
  • N slot symb 12
  • N frame 20
  • ⁇ slot 40
  • a time unit (time unit) T c may be used to represent the length of the time domain.
  • ⁇ f max 480 kHz.
  • N f 4096.
  • ⁇ f ref is 15 kHz.
  • N f and ref are 2048.
  • the transmission of signals on the downlink and / or the transmission of signals on the uplink may be organized into radio frames (system frames, frames) of length T f.
  • the radio frame is composed of 10 subframes.
  • the number and index of slots contained in a subframe may be given for a given subcarrier spacing setting ⁇ .
  • the slot index n ⁇ s may be given in ascending order by an integer value in the range of 0 to N subframe, ⁇ slot -1 in the subframe.
  • the number and index of slots contained in the radio frame may be given for the setting ⁇ of the subcarrier spacing.
  • the slot indexes n ⁇ s and f may be given in ascending order by integer values in the range of 0 to N frame and ⁇ slot -1 in the radio frame.
  • One slot may contain consecutive N slot symbs of OFDM symbols.
  • N slot symb 14.
  • FIG. 3 is a diagram showing an example of a method of configuring a resource grid according to one aspect of the present embodiment.
  • the horizontal axis of FIG. 3 indicates a frequency domain.
  • the component carrier 300 is a band having a predetermined width in the frequency domain.
  • Point 3000 is an identifier for identifying a certain subcarrier. Point 3000 is also referred to as point A.
  • the common resource block (CRB) set 3100 is a set of common resource blocks for the subcarrier interval setting ⁇ 1.
  • the common resource block including the point 3000 (the block indicated by the upward slash in FIG. 3) is also referred to as the reference point of the common resource block set 3100.
  • the reference point of the common resource block set 3100 may be the common resource block of index 0 in the common resource block set 3100.
  • 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 the subcarrier spacing setting ⁇ 1.
  • the resource grid 3001 includes N size, ⁇ grid 1, x common resource blocks starting from the reference point of the resource grid 3001.
  • the offset 3013 is an offset from the reference point of the resource grid 3001 to the reference point (N start, ⁇ BWP, i1 ) of the BWP (BandWidth Part) 3003 of the index i1.
  • the common resource block set 3200 is a set of common resource blocks for the setting ⁇ 2 of the subcarrier interval.
  • the common resource block including the point 3000 (the block indicated by the upward slash 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 of index 0 in the common resource block set 3200.
  • 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 for the subcarrier spacing ⁇ 2.
  • the resource grid 3002 includes N size, ⁇ grid 2, x common resource blocks starting from the reference point of the resource grid 3002.
  • the offset 3014 is an offset from the reference point of the resource grid 3002 to the reference point (N start, ⁇ BWP, i2 ) of the BWP 3004 of the index i2.
  • FIG. 4 is a diagram showing a configuration example of the resource grid 3001 according to one aspect of the present embodiment.
  • the horizontal axis is the OFDM symbol index l sym and the vertical axis is the subcarrier index k sc .
  • Resource grid 3001 includes N size, ⁇ grid1, x N RB sc subcarriers, including N subframe, mu symb OFDM symbols.
  • the resources identified by the subcarrier index k sc and the OFDM symbol index l sym are also referred to as resource elements (REs).
  • REs resource elements
  • a resource block (RB) contains NRB sc consecutive subcarriers.
  • a resource block is a general term for a common resource block, a physical resource block (PRB), and a virtual resource block (VRB).
  • PRB physical resource block
  • VRB virtual resource block
  • NRB sc 12.
  • a resource block unit is a set of resources corresponding to one OFDM symbol in one resource block. That is, one resource block unit contains 12 resource elements corresponding to 1 OFDM symbol in one resource block.
  • Common resource blocks for a subcarrier interval setting ⁇ are indexed in the frequency domain in ascending order from 0 in a common resource block set.
  • a common resource block at index 0 for a subcarrier interval setting ⁇ includes (or collides, matches) point 3000.
  • Physical resource blocks for a setting ⁇ of a subcarrier spacing are indexed in the frequency domain in ascending order from 0 in a BWP.
  • N start, ⁇ BWP, and i indicate the reference point of the BWP of the index i.
  • the BWP is defined as a subset of common resource blocks contained in the resource grid.
  • the BWP includes N size, ⁇ BWP, i common resource blocks starting from the reference point N start, ⁇ BWP, i of the BWP.
  • the BWP set for the downlink carrier is also referred to as the downlink BWP.
  • the BWP set for the uplink component carrier is also referred to as the uplink BWP.
  • An antenna port may be defined by the fact that the channel on which a symbol is transmitted at one antenna port can be estimated from the channel on which other symbols are transmitted at that antenna port (An antenna port is defined such that the channel over which). a symbol on the antenna port is conveyed can be inverted from the channel over which another symbol on the same antenna port is conveyed).
  • the channel may correspond to a physical channel.
  • the symbol may correspond to an OFDM symbol.
  • the symbol may also correspond to a resource block unit.
  • the symbol may also correspond to a resource element.
  • the large scale property of the channel through which the symbol is transmitted in one antenna port can be estimated from the channel in which the symbol is transmitted in the other antenna port, that the two antenna ports are QCL (Quasi Co-Located). ) Is called.
  • Large scale characteristics may include at least the long interval characteristics of the channel.
  • Large-scale characteristics include delay spread (delay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), and beam parameters (spatial Rx parameters). It may include at least some or all.
  • the fact that the first antenna port and the second antenna port are QCL with respect to the beam parameters means that the receiving beam assumed by the receiving side with respect to the first antenna port and the receiving beam assumed by the receiving side with respect to the second antenna port.
  • the fact that the first antenna port and the second antenna port are QCL with respect to the beam parameters means that the transmitting beam assumed by the receiving side with respect to the first antenna port and the transmitting beam assumed by the receiving side with respect to the second antenna port. May be the same.
  • the terminal device 1 assumes that the two antenna ports are QCLs when the large-scale characteristics of the channel through which the symbol is transmitted in one antenna port can be estimated from the channel in which the symbol is transmitted in the other antenna port. May be done.
  • the fact that the two antenna ports are QCLs may mean that the two antenna ports are QCLs.
  • Carrier aggregation may be communication using a plurality of aggregated serving cells. Further, carrier aggregation may be to perform communication using a plurality of aggregated component carriers. In addition, carrier aggregation may be to perform communication using a plurality of aggregated downlink component carriers. In addition, carrier aggregation may be to perform communication using a plurality of aggregated uplink component carriers.
  • FIG. 5 is a schematic block diagram showing a configuration example of the base station device 3 according to one aspect of the present embodiment.
  • the base station apparatus 3 includes at least a part or all of the radio transmission / reception unit (physical layer processing unit) 30 and / or the upper layer processing unit 34.
  • the radio transmission / reception unit 30 includes at least a part or all of an antenna unit 31, an RF (Radio Frequency) unit 32, and a baseband unit 33.
  • the upper layer processing unit 34 includes at least a part or all of the medium access control layer processing unit 35 and the radio resource control (RRC: Radio Resource Control) layer processing unit 36.
  • RRC Radio Resource Control
  • the wireless transmission / reception unit 30 includes at least a part or all of the wireless transmission unit 30a and the wireless reception unit 30b.
  • the device configurations of the baseband unit included in the wireless transmission unit 30a and the baseband unit included in the wireless reception unit 30b may be the same or different.
  • the device configurations of the RF unit included in the wireless transmission unit 30a and the RF unit included in the wireless reception unit 30b may be the same or different.
  • the device configurations of the antenna unit included in the wireless transmission unit 30a and the antenna unit included in the wireless reception unit 30b may be the same or different.
  • the wireless transmission unit 30a may generate and transmit a PDSCH baseband signal.
  • the wireless transmission unit 30a may generate and transmit a baseband signal of PDCCH.
  • the wireless transmission unit 30a may generate and transmit a baseband signal of PBCH.
  • the wireless transmission unit 30a may generate and transmit a baseband signal of the synchronization signal.
  • the wireless transmission unit 30a may generate and transmit a baseband signal of PDSCH DMRS.
  • the wireless transmission unit 30a may generate and transmit a baseband signal of PDCCH DMRS.
  • the wireless transmission unit 30a may generate and transmit a baseband signal of CSI-RS.
  • the wireless transmission unit 30a may generate and transmit a DL PTRS baseband signal.
  • the wireless transmission unit 30b may receive the PRACH.
  • the wireless transmission unit 30b may receive the PUCCH and demodulate it.
  • the wireless transmission unit 30b may receive the PUSCH and demodulate it.
  • the wireless transmission unit 30b may receive the PUCCH DMRS.
  • the wireless transmission unit 30b may receive the PUSCH DMRS.
  • the wireless transmission unit 30b may receive UL PTRS.
  • the wireless transmission unit 30b may receive the SRS.
  • the upper layer processing unit 34 outputs downlink data (transport block) to the wireless transmission / reception unit 30 (or wireless transmission unit 30a).
  • the upper layer processing unit 34 processes the MAC (Medium Access Control) layer, the packet data integration protocol (PDCP: Packet Data Convergence Protocol) layer, the wireless link control (RLC: Radio Link Control) layer, and the RRC layer.
  • MAC Medium Access Control
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • the medium access control layer processing unit 35 included in the upper layer processing unit 34 processes the MAC layer.
  • the radio resource control layer processing unit 36 included in the upper layer processing unit 34 processes the RRC layer.
  • the wireless 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 RRC parameters based on the RRC message received from the terminal device 1.
  • the wireless transmission / reception unit 30 (or wireless transmission unit 30a) performs processing such as modulation and coding.
  • the wireless transmission / reception unit 30 (or wireless transmission unit 30a) generates a physical signal by modulating, encoding, and generating a baseband signal (converting to a time continuous signal) of downlink data, and transmits the physical signal to the terminal device 1. ..
  • the wireless transmission / reception unit 30 (or wireless transmission unit 30a) may arrange a physical signal on a component carrier and transmit it to the terminal device 1.
  • the wireless transmission / reception unit 30 (or wireless reception unit 30b) performs processing such as demodulation and decoding.
  • the wireless transmission / reception unit 30 (or wireless reception unit 30b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 34.
  • the radio transmission / reception unit 30 (or radio reception unit 30b) may carry out a channel access procedure prior to transmission of a physical signal.
  • the RF unit 32 converts the signal received via the antenna unit 31 into a baseband signal by orthogonal demodulation (down conversion), and removes unnecessary frequency components.
  • the RF unit 32 outputs the processed analog signal to the baseband unit.
  • the baseband unit 33 converts the analog signal (analog signal) input from the RF unit 32 into a digital signal (digital signal).
  • the baseband unit 33 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal from which the CP has been removed, and outputs a signal in the frequency domain. Extract.
  • CP Cyclic Prefix
  • FFT fast Fourier transform
  • the baseband unit 33 performs inverse fast Fourier transform (IFFT) on the data to generate an OFDM symbol, adds CP to the generated OFDM symbol, generates a baseband digital signal, and basebands the data. Converts a band digital signal into an analog signal.
  • the baseband unit 33 outputs the converted analog signal to the RF unit 32.
  • IFFT inverse fast Fourier transform
  • the RF unit 32 removes an extra frequency component from the analog signal input from the baseband unit 33 using a low-pass filter, upconverts the analog signal to the carrier frequency, and transmits the analog signal via the antenna unit 31. do. Further, the RF unit 32 may have a function of controlling the transmission power.
  • the RF unit 32 is also referred to as a transmission power control unit.
  • One or more serving cells may be set for the terminal device 1.
  • Each of the serving cells set for the terminal device 1 is one of PCell (Primary cell, primary cell), PSCell (Primary SCG cell, primary SCG cell), and SCell (Secondary Cell, secondary cell). May be good.
  • PCell is a serving cell included in MCG (Master Cell Group).
  • the PCell is a cell (implemented cell) that executes an initial connection establishment procedure (initial connection establishment procedure) or a connection re-establishment procedure (connection re-establishment procedure) by the terminal device 1.
  • the PSCell is a serving cell included in SCG (Secondary Cell Group).
  • the PSCell is a serving cell in which random access is performed by the terminal device 1 in a resetting procedure (Reconfiration with synchronization) accompanied by synchronization.
  • SCell may be included in either MCG or SCG.
  • Serving cell group is a name that includes at least MCG and SCG.
  • the serving cell group may include one or more serving cells (or component carriers).
  • One or more serving cells (or component carriers) included in the serving cell group may be operated by carrier aggregation.
  • One or more downlink BWPs may be set for each of the serving cells (or downlink component carriers).
  • One or more uplink BWPs may be set for each of the serving cells (or uplink component carriers).
  • one downlink BWP may be configured as the active downlink BWP (or one downlink BWP). May be activated).
  • one uplink BWP may be configured as the active uplink BWP (or one uplink BWP). May be activated).
  • PDSCH, PDCCH, and CSI-RS may be received on the active downlink BWP.
  • the terminal device 1 may receive PDSCH, PDCCH, and CSI-RS on the active downlink BWP.
  • PUCCH and PUSCH may be transmitted in the active uplink BWP.
  • the terminal device 1 may transmit PUCCH and PUSCH in the active uplink BWP.
  • the active downlink BWP and the active uplink BWP are also referred to as an active BWP.
  • PDSCH, PDCCH, and CSI-RS do not have to be received in the downlink BWP (inactive downlink BWP) other than the active downlink BWP.
  • the terminal device 1 does not have to receive PDSCH, PDCCH, and CSI-RS in the downlink BWP other than the active downlink BWP.
  • the PUCCH and PUSCH may not be transmitted in an uplink BWP (inactive uplink BWP) other than the active uplink BWP.
  • the terminal device 1 does not have to transmit the PUCCH and the PUSCH in the uplink BWP other than the active uplink BWP.
  • the inactive downlink BWP and the inactive uplink BWP are also referred to as an inactive BWP.
  • the downlink BWP switch (BWP switch) is for deactivating one active downlink BWP and activating any of the inactive downlink BWP other than the one active downlink BWP. Used.
  • the downlink BWP switching may be controlled by the BWP field included in the downlink control information.
  • the downlink BWP switching may be controlled based on the parameters of the upper layer.
  • Uplink BWP switching is used to deactivate one active uplink BWP and activate any of the inactive uplink BWPs other than the one active uplink BWP.
  • the uplink BWP switching may be controlled by the BWP field included in the downlink control information.
  • the uplink BWP switching may be controlled based on the parameters of the upper layer.
  • two or more downlink BWPs need not be set as the active downlink BWP.
  • One downlink BWP may be active for the serving cell at a given time.
  • two or more uplink BWPs need not be set as the active uplink BWP.
  • One uplink BWP may be active for the serving cell at a given time.
  • FIG. 6 is a schematic block diagram showing a configuration example of the terminal device 1 according to one aspect of the present embodiment.
  • the terminal device 1 includes at least one or all of the wireless transmission / reception unit (physical layer processing unit) 10 and the upper layer processing unit 14.
  • the radio transmission / reception unit 10 includes at least a part or all of the antenna unit 11, the RF unit 12, and the baseband unit 13.
  • the upper layer processing unit 14 includes at least a part or all of the medium access control layer processing unit 15 and the radio resource control layer processing unit 16.
  • the wireless transmission / reception unit 10 includes at least a part or all of the wireless transmission unit 10a and the wireless reception unit 10b.
  • the device configurations of the baseband unit 13 included in the wireless transmission unit 10a and the baseband unit 13 included in the wireless reception unit 10b may be the same or different.
  • the device configurations of the RF unit 12 included in the wireless transmission unit 10a and the RF unit 12 included in the wireless reception unit 10b may be the same or different.
  • the device configurations of the antenna unit 11 included in the wireless transmission unit 10a and the antenna unit 11 included in the wireless reception unit 10b may be the same or different.
  • the wireless transmission unit 10a may generate and transmit a PRACH baseband signal.
  • the wireless transmission unit 10a may generate and transmit a PUCCH baseband signal.
  • the radio transmission unit 10a may generate and transmit a PUSCH baseband signal.
  • the wireless transmission unit 10a may generate and transmit a baseband signal of PUCCH DMRS.
  • the wireless transmission unit 10a may generate and transmit a baseband signal of PUSCH DMRS.
  • the wireless transmission unit 10a may generate and transmit a UL PTRS baseband signal.
  • the wireless transmission unit 10a may generate and transmit an SRS baseband signal.
  • the wireless receiving unit 10b may receive the PDSCH and demodulate it.
  • the wireless receiver 10b may receive the PDCCH and demodulate it.
  • the wireless receiver 10b may receive the PBCH and demodulate it.
  • the wireless receiving unit 10b may receive the synchronization signal.
  • the wireless receiving unit 10b may receive the PDSCH DMRS.
  • the wireless receiving unit 10b may receive the PDCCH DMRS.
  • the wireless receiver 10b may receive the CSI-RS.
  • the wireless receiving unit 10b may receive DL PTRS.
  • the upper layer processing unit 14 outputs uplink data (transport block) to the wireless transmission / reception unit 10 (or wireless transmission unit 10a).
  • the upper layer processing unit 14 processes the MAC layer, the packet data integration protocol layer, the wireless link control layer, and the RRC layer.
  • the medium access control layer processing unit 15 included in the upper layer processing unit 14 processes the MAC layer.
  • the radio resource control layer processing unit 16 included in the upper layer processing unit 14 processes the RRC layer.
  • the wireless resource control layer processing unit 16 manages various setting information / parameters (RRC parameters) of the terminal device 1.
  • the radio resource control layer processing unit 16 sets RRC parameters based on the RRC message received from the base station apparatus 3.
  • the wireless transmission / reception unit 10 performs processing such as modulation and coding.
  • the wireless transmission / reception unit 10 (or wireless transmission unit 10a) generates a physical signal by modulating, encoding, and generating a baseband signal (converting to a time continuous signal) of uplink data, and transmits the physical signal to the base station apparatus 3. do.
  • the radio transmission / reception unit 10 (or radio transmission unit 10a) may arrange a physical signal in a certain BWP (active uplink BWP) and transmit it to the base station apparatus 3.
  • the wireless transmission / reception unit 10 (or wireless reception unit 10b) performs processing such as demodulation and decoding.
  • the radio transmission / reception unit 10 (or radio reception unit 30b) may receive a physical signal at a BWP (active downlink BWP) having a certain serving cell.
  • the wireless transmission / reception unit 10 (or wireless reception unit 10b) separates, demodulates, and decodes the received physical signal, and outputs the decoded information to the upper layer processing unit 14.
  • the wireless transmission / reception unit 10 (radio reception unit 10b) may carry out a channel access procedure prior to transmission of a physical signal.
  • the RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by orthogonal demodulation (down conversion: down converter), and removes unnecessary frequency components.
  • the RF unit 12 outputs the processed analog signal to the baseband unit 13.
  • the baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal.
  • the baseband unit 13 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs a fast Fourier transform (FFT) on the signal from which the CP has been removed, and outputs a signal in the frequency domain. Extract.
  • CP Cyclic Prefix
  • FFT fast Fourier transform
  • the baseband unit 13 performs inverse fast Fourier transform (IFFT) on the uplink data to generate an OFDM symbol, adds CP to the generated OFDM symbol, and generates a baseband digital signal. , Converts baseband digital signals to analog signals. The baseband unit 13 outputs the converted analog signal to the RF unit 12.
  • IFFT inverse fast Fourier transform
  • the RF unit 12 removes excess frequency components from the analog signal input from the baseband unit 13 using a low-pass filter, upconverts the analog signal to the carrier frequency, and transmits the analog signal via the antenna unit 11. do. Further, the RF unit 12 may have a function of controlling the transmission power.
  • the RF unit 12 is also referred to as a transmission power control unit.
  • the physical signal (signal) will be described below.
  • Physical signal is a general term for downlink physical channel, downlink physical signal, uplink physical channel, and uplink physical channel.
  • the physical channel is a general term for a downlink physical channel and an uplink physical channel.
  • the physical signal is a general term for a downlink physical signal and an uplink physical signal.
  • the uplink physical channel may correspond to a set of resource elements that carry information that occurs in the upper layers.
  • the uplink physical channel may be the physical channel used in the uplink component carrier.
  • the uplink physical channel may be transmitted by the terminal device 1.
  • the uplink physical channel may be received by the base station apparatus 3.
  • at least some or all of the following uplink physical channels may be used.
  • ⁇ PUCCH Physical Uplink Control CHannel
  • PUSCH Physical Uplink Shared CHannel
  • PRACH Physical Random Access CHannel
  • PUCCH may be used to transmit uplink control information (UCI: Uplink Control Information).
  • the PUCCH may be transmitted to transmit uplink control information (deliver, transmission, convey).
  • the uplink control information may be mapped on the PUCCH.
  • the terminal device 1 may transmit the PUCCH in which the uplink control information is arranged.
  • the base station apparatus 3 may receive the PUCCH in which the uplink control information is arranged.
  • the uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) includes channel state information (CSI: Channel State Information), scheduling request (SR: Scheduling Request), and HARQ-ACK (Hybrid). AutomaticRepeatrequestACKnowledgement) Includes at least some or all of the information.
  • CSI Channel State Information
  • SR Scheduling Request
  • HARQ-ACK Hybrid
  • the channel state information is also referred to as a channel state information bit or a channel state information series.
  • the scheduling request is also called a scheduling request bit or a scheduling request series.
  • the HARQ-ACK information is also referred to as a HARQ-ACK information bit or a HARQ-ACK information series.
  • HARQ-ACK information is a transport block (or TB: Transport block, MAC PDU: Medium Access Control Protocol Data Unit, DL-SCH: Downlink-Shared Channel, UL-SCH: Uplink-Shared Channel, PDSCH: Physical Downlink Shared It may contain at least HARQ-ACK corresponding to Channel, PUSCH: Physical Uplink Shared CHannel).
  • HARQ-ACK may indicate ACK (acknowledgement) or NACK (negative-acknowledgement) corresponding to the transport block.
  • ACK may indicate that the transport block has been successfully decrypted (has been decoded).
  • NACK may indicate that the transport block has not been successfully decrypted (has not been decoded).
  • the HARQ-ACK information may include a HARQ-ACK codebook containing one or more HARQ-ACK bits.
  • Correspondence between the HARQ-ACK information and the transport block may mean that the HARQ-ACK information and the PDSCH used for transmission of the transport block correspond to each other.
  • HARQ-ACK may indicate ACK or NACK corresponding to one CBG (Code Block Group) included in the transport block.
  • CBG Code Block Group
  • Scheduling requests may at least be used to request PUSCH (or UL-SCH) resources for initial transmission.
  • the scheduling request bit may be used to indicate either a positive SR (positive SR) or a negative SR (negative SR).
  • the fact that the scheduling request bit indicates a positive SR is also referred to as "a positive SR is transmitted”.
  • a positive SR may indicate that the terminal device 1 requires a PUSCH (or UL-SCH) resource for initial transmission.
  • a positive SR may indicate that the scheduling request is triggered by the upper layer.
  • a positive SR may be transmitted when the upper layer instructs it to transmit a scheduling request.
  • the fact that the scheduling request bit indicates a negative SR is also referred to as "a negative SR is transmitted”.
  • a negative SR may indicate that the terminal device 1 does not require PUSCH (or UL-SCH) resources for initial transmission.
  • a negative SR may indicate that the scheduling request is not triggered by the upper layer. Negative SRs may be sent if the higher layer does not instruct them to send scheduling requests.
  • the channel state information may include at least a part or all of a channel quality index (CQI: Channel Quality Indicator), a precoder matrix index (PMI: Precoder Matrix Indicator), and a rank index (RI: Rank Indicator).
  • CQI is an index related to the quality of the propagation path (for example, propagation intensity) or the quality of the physical channel
  • PMI is an index related to the precoder
  • RI is an index related to the transmission rank (or the number of transmission layers).
  • Channel state information may be given at least on the basis of receiving at least a physical signal (eg, CSI-RS) used for channel measurement.
  • the channel state information may be selected by the terminal device 1 at least based on receiving the physical signal used for channel measurement.
  • the channel measurement may include an interference measurement.
  • the PUCCH may correspond to the PUCCH format.
  • the PUCCH may be a set of resource elements used to convey the PUCCH format.
  • the PUCCH may include a PUCCH format.
  • PUSCH may be used to transmit transport block and / or uplink control information.
  • the PUSCH may be used to transmit UL-SCH-corresponding transport blocks and / or uplink control information.
  • PUSCH may be used to convey transport block and / or uplink control information.
  • the PUSCH may be used to transmit UL-SCH-corresponding transport blocks and / or uplink control information.
  • the transport block may be located on the PUSCH.
  • the transport block corresponding to UL-SCH may be arranged in PUSCH.
  • the uplink control information may be arranged in PUSCH.
  • the terminal device 1 may transmit a transport block and / or a PUSCH in which uplink control information is arranged.
  • the base station apparatus 3 may receive the transport block and / or the PUSCH in which the uplink control information is arranged.
  • the PRACH may be used to transmit a random access preamble.
  • PRACH may be used to convey a random access preamble.
  • x u may be a ZC (Zadoff Chu) series.
  • j is an imaginary unit.
  • ⁇ is the pi.
  • C v corresponds to the cyclic shift of the PRACH sequence (cyclic shift).
  • L RA corresponds to the length of the PRACH series.
  • L RA is 839, or 139.
  • i is an integer in the range 0 to L RA -1.
  • u is a series index for the PRACH series.
  • the terminal device 1 may transmit PRACH.
  • Random access preambles For a PRACH opportunity, 64 random access preambles are defined. Random access preamble cyclic shift C v of PRACH sequence, and, at least on the basis of the identified sequence index u for PRACH sequence (determined, given).
  • the uplink physical signal may correspond to a set of resource elements.
  • the uplink physical signal does not have to carry the information generated in the upper layer.
  • the uplink physical signal may be the physical signal used in the uplink component carrier.
  • the terminal device 1 may transmit an uplink physical signal.
  • the base station device 3 may receive an uplink physical signal. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical signals may be used.
  • ⁇ UL DMRS UpLink Demodulation Reference Signal
  • SRS Sounding Reference Signal
  • UL PTRS UpLink Phase Tracking Reference Signal
  • UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.
  • the set of antenna ports of DMRS for PUSCH may be given based on the set of antenna ports for PUSCH. That is, the set of DMRS antenna ports for the PUSCH may be the same as the set of the PUSCH antenna ports.
  • the transmission of the PUSCH and the transmission of the DMRS for the PUSCH may be indicated (or scheduled) in one DCI format.
  • the PUSCH and the DMRS for the PUSCH may be collectively referred to as the PUSCH.
  • Transmission of PUSCH may be transmission of PUSCH and DMRS for the PUSCH.
  • the PUSCH may be estimated from the DMRS for the PUSCH. That is, the propagation path of the PUSCH may be estimated from the DMRS for the PUSCH.
  • the set of antenna ports of DMRS for PUCCH may be the same as the set of antenna ports of PUCCH.
  • the transmission of the PUCCH and the transmission of the DMRS for the PUCCH may be indicated (or triggered) in one DCI format.
  • the mapping of PUCCH to resource elements (resource element mapping) and / or the mapping of DMRS to resource elements for the PUCCH may be given in one PUCCH format.
  • PUCCH and DMRS for the PUCCH may be collectively referred to as PUCCH.
  • Transmission of PUCCH may be transmission of PUCCH and DMRS for the PUCCH.
  • PUCCH may be estimated from DMRS for the PUCCH. That is, the propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.
  • the downlink physical channel may correspond to a set of resource elements carrying information generated in the upper layer.
  • the downlink physical channel may be the physical channel used in the downlink component carrier.
  • the base station apparatus 3 may transmit a downlink physical channel.
  • the terminal device 1 may receive the downlink physical channel.
  • 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
  • PBCH may be used to transmit MIB (MIB: Master Information Block) and / or physical layer control information.
  • the PBCH may be transmitted to transmit (deliver, transmission, convey) the MIB and / or physical layer control information.
  • BCH may be mapped to PBCH.
  • the terminal device 1 may receive the MIB and / or the PBCH in which the physical layer control information is arranged.
  • the base station apparatus 3 may transmit a MIB and / or a PBCH in which physical layer control information is arranged.
  • the physical layer control information is also referred to as a PBCH payload or a PBCH payload related to timing.
  • the MIB may include one or more upper layer parameters.
  • Physical layer control information includes 8 bits.
  • the physical layer control information may include at least a part or all of the following 0A to 0D.
  • the radio frame bit is used to indicate a radio frame through which the PBCH is transmitted (a radio frame including a slot through which the PBCH is transmitted).
  • the radio frame bit includes 4 bits.
  • the radio frame bit may be composed of 4 bits of the 10-bit radio frame indicator.
  • the radio frame indicator may at least be used to identify radio frames from index 0 to index 1023.
  • the half radio frame bit is used to indicate whether the PBCH is transmitted in the first five subframes or the latter five subframes among the radio frames in which the PBCH is transmitted.
  • the half radio frame may be configured to include five subframes.
  • the half radio frame may be composed of five subframes in the first half of the ten subframes included in the radio frame.
  • the half radio frame may be composed of the latter five subframes out of the ten subframes included in the radio frame.
  • the SS / PBCH block index bit is used to indicate the SS / PBCH block index.
  • the SS / PBCH block index bit includes 3 bits.
  • the SS / PBCH block index bit may be composed of 3 bits of the 6-bit SS / PBCH block index specifier.
  • the SS / PBCH block index indicator may at least be used to identify SS / PBCH blocks from index 0 to index 63.
  • the subcarrier offset bit is used to indicate the subcarrier offset.
  • the subcarrier offset may be used to indicate the difference between the first subcarrier to which the PBCH is mapped and the first subcarrier to which the control resource set at index 0 is mapped.
  • PDCCH may be used to transmit downlink control information (DCI: Downlink Control Information).
  • DCI Downlink Control Information
  • the PDCCH may be transmitted to transmit downlink control information (deliver, transmission, convey).
  • the downlink control information may be mapped on the PDCCH.
  • the terminal device 1 may receive the PDCCH in which the downlink control information is arranged.
  • the base station apparatus 3 may transmit the PDCCH in which the downlink control information is arranged.
  • the downlink control information may correspond to the DCI format.
  • the downlink control information may be included in the DCI format.
  • the downlink control information may be placed in each field in DCI format.
  • DCI format 0_1, DCI format 0_1, DCI format 1_1, and DCI format 1_1 are DCI formats including different sets of fields.
  • the uplink DCI format is a general term for DCI format 0_0 and DCI format 0_1.
  • the downlink DCI format is a general term for DCI format 1_0 and DCI format 1-1.1.
  • DCI format 0_0 is at least used for scheduling PUSCH in a cell (or placed in a cell).
  • DCI format 0_0 comprises at least some or all of the fields 1A to 1E.
  • the DCI format specific field may indicate whether the DCI format including the DCI format specific field is the uplink DCI format or the downlink DCI format.
  • the DCI format specific field included in DCI format 0_0 may indicate 0 (or may indicate that DCI format 0_0 is uplink DCI format).
  • the frequency domain resource allocation field contained in DCI format 0_0 may at least be used to indicate the allocation of frequency resources for PUSCH.
  • the time domain resource allocation field contained in DCI format 0_0 may at least be used to indicate the allocation of time resources for PUSCH.
  • the frequency hopping flag field may at least be used to indicate whether frequency hopping is applied to PUSCH.
  • the MCS field contained in DCI format 0_0 may be at least used to indicate the modulation scheme for PUSCH and / or part or all of the target code rate.
  • the target code rate may be the target code rate for the PUSCH transport block.
  • the size of the PUSCH transport block (TBS: Transport Block Size) may be given at least based on the target code rate and some or all of the modulation schemes for the PUSCH.
  • DCI format 0_0 does not have to include the field used for the CSI request (CSI request). That is, the DCI format 0_0 does not have to require CSI.
  • DCI format 0_0 does not have to include the carrier indicator field. That is, the uplink component carrier on which the PUSCH scheduled by DCI format 0_0 is arranged may be the same as the uplink component carrier on which the PDCCH including the DCI format 0_0 is arranged.
  • DCI format 0_0 does not have to include the BWP field. That is, the uplink BWP on which the PUSCH scheduled by DCI format 0_0 is arranged may be the same as the uplink BWP on which the PDCCH including the DCI format 0_0 is arranged.
  • DCI format 0_1 is at least used for scheduling PUSCH (located in a cell) in a cell.
  • DCI format 0-1 is configured to include at least some or all of the fields 2A to 2H.
  • the DCI format specific field included in the DCI format 0_1 may indicate 0 (or may indicate that the DCI format 0_1 is an uplink DCI format).
  • the frequency domain resource allocation field included in DCI format 0-1 may at least be used to indicate the allocation of frequency resources for PUSCH.
  • the time domain resource allocation field contained in DCI format 0-1 may at least be used to indicate the allocation of time resources for PUSCH.
  • the MCS field contained in DCI format 0-1 may be at least used to indicate the modulation scheme for PUSCH and / or part or all of the target code rate.
  • the BWP field may be used to indicate the uplink BWP on which the PUSCH is located. If the DCI format 0_1 does not include a BWP field, the uplink BWP in which the PUSCH is located may be the same as the uplink BWP in which the PDCCH containing the DCI format 0_1 used for scheduling the PUSCH is located.
  • the BWP field included in the DCI format 0-1 used for scheduling the PUSCH arranged in the uplink component carrier is 2 or more. The number of bits may be 1 bit or more.
  • the bits of the BWP field included in the DCI format 0-1 used for scheduling the PUSCH arranged in the uplink component carrier may be 0 bits (or the DCI format 0-1 used to schedule the PUSCH placed on the uplink component carrier may not include the BWP field).
  • the CSI request field is at least used to direct CSI reporting.
  • the carrier indicator field may be used to indicate the uplink component carrier on which the PUSCH is located. If DCI format 0_1 does not include a carrier indicator field, the uplink component carrier on which the PUSCH is located is the same as the uplink component carrier on which the PDCCH containing DCI format 0_1 used to schedule the PUSCH is located. May be good.
  • the PUSCH arranged in the serving cell group The number of bits of the carrier indicator field included in the DCI format 0-1 used for scheduling may be 1 bit or more (for example, 3 bits).
  • the PUSCH arranged in the serving cell group is scheduled.
  • the number of bits of the carrier indicator field included in the DCI format 0-1 used may be 0 bits (or the carrier indicator field is included in the DCI format 0-1 used for scheduling PUSCHs arranged in the serving cell group. It does not have to be).
  • DCI format 1_0 is at least used for scheduling PDSCH (located in a cell) in a cell.
  • DCI format 1_0 is configured to include at least part or all of 3A to 3F.
  • the DCI format specific field included in the DCI format 1_0 may indicate 1 (or may indicate that the DCI format 1_0 is the downlink DCI format).
  • the frequency domain resource allocation field included in DCI format 1_0 may at least be used to indicate the frequency resource allocation for PDSCH.
  • the time domain resource allocation field included in DCI format 1_0 may at least be used to indicate the allocation of time resources for PDSCH.
  • the MCS field contained in DCI format 1_0 may be at least used to indicate the modulation scheme for PDSCH and / or part or all of the target code rate.
  • the target code rate may be the target code rate for the PDSCH transport block.
  • the size of the transport block of the PDSCH (TBS: Transport Block Size) may be given at least based on the target code rate and some or all of the modulation schemes for the PDSCH.
  • the PDSCH_HARQ feedback timing indicator field may at least be used to indicate the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH.
  • the PUCCH resource instruction field may be a field indicating an index of either one or a plurality of PUCCH resources included in the PUCCH resource set.
  • the PUCCH resource set may include one or more PUCCH resources.
  • DCI format 1_0 does not have to include the carrier indicator field. That is, the downlink component carrier on which the PDSCH scheduled by DCI format 1_0 is arranged may be the same as the downlink component carrier on which the PDCCH including the DCI format 1_0 is arranged.
  • DCI format 1_0 does not have to include the BWP field. That is, the downlink BWP on which the PDSCH scheduled by DCI format 1_0 is arranged may be the same as the downlink BWP on which the PDCCH including the DCI format 1_0 is arranged.
  • DCI format 1-11 is at least used for scheduling PDSCH in a cell (or placed in a cell).
  • DCI format 1_1 is configured to include at least some or all of 4A to 4I.
  • the DCI format specific field included in the DCI format 1-11 may indicate 1 (or may indicate that the DCI format 1-11 is the downlink DCI format).
  • the frequency domain resource allocation fields included in DCI format 1-11 may at least be used to indicate the allocation of frequency resources for PDSCH.
  • the time domain resource allocation field included in DCI format 1-11 may at least be used to indicate the allocation of time resources for PDSCH.
  • the MCS field contained in DCI format 1-11 may at least be used to indicate the modulation scheme for PDSCH and / or part or all of the target code rate.
  • the PDSCH_HARC feedback timing indicator field indicates the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH. At least may be used for. If the DCI format 1-11 does not include the PDSCH_HARQ feedback timing indicator field, the offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH may be specified by the parameters of the upper layer. good.
  • the PUCCH resource instruction field may be a field indicating an index of either one or a plurality of PUCCH resources included in the PUCCH resource set.
  • the BWP field may be used to indicate the downlink BWP on which the PDSCH is located. If the DCI format 1-11 does not include a BWP field, the downlink BWP in which the PDSCH is placed may be the same as the downlink BWP in which the PDCCH containing the DCI format 1-11, which is used for scheduling the PDSCH, is placed.
  • the number of downlink BWPs set in the terminal device 1 in a downlink component carrier is 2 or more
  • the bits of the BWP field included in the DCI format 1-1-1 used for scheduling the PDSCH arranged in the downlink component carrier may be 0 bits (or the DCI format 1-11 used to schedule the PDSCH placed on the downlink component carrier may not include the BWP field).
  • the carrier indicator field may be used to indicate the downlink component carrier in which the PDSCH is located. If the DCI format 1-11 does not include a carrier indicator field, the downlink component carrier in which the PDSCH is located is the same as the downlink component carrier in which the PDCCH containing the DCI format 1-1-1, used for scheduling the PDSCH, is located. May be good.
  • the PDSCH arranged in the certain serving cell group The number of bits of the carrier indicator field included in the DCI format 1-11 used for scheduling may be 1 bit or more (for example, 3 bits).
  • the PDSCH arranged in the certain serving cell group is scheduled.
  • the number of bits of the carrier indicator field included in the DCI format 1-11 used may be 0 bits (or the carrier indicator field is included in the DCI format 1-11 used for scheduling PDSCHs arranged in the serving cell group. It does not have to be).
  • the PDSCH may be used to transmit a transport block.
  • the PDSCH may be used to transmit a transport block corresponding to the DL-SCH.
  • PDSCH may be used to transmit transport blocks.
  • the PDSCH may be used to transmit the transport block corresponding to the DL-SCH.
  • the transport block may be located on the PDSCH.
  • the transport block corresponding to the DL-SCH may be arranged on the PDSCH.
  • the base station device 3 may transmit the PDSCH.
  • the terminal device 1 may receive the PDSCH.
  • the downlink physical signal may correspond to a set of resource elements.
  • the downlink physical signal does not have to carry the information generated in the upper layer.
  • the downlink physical signal may be a physical signal used in the downlink component carrier.
  • the downlink physical signal may be transmitted by the base station apparatus 3.
  • the downlink physical signal may be transmitted by the terminal device 1.
  • at least some or all of the following downlink physical signals may be used.
  • SS Synchronization signal
  • DL DMRS DownLink DeModulation Reference Signal
  • CSI-RS Channel State Information-Reference Signal
  • DL PTRS DownLink Phase Tracking Reference Signal
  • the synchronization signal may be at least used by the terminal device 1 to synchronize the downlink frequency domain and / or the time domain.
  • the synchronization signal is a general term for PSS (PrimarySynchronizationSignal) and SSS (SecondarySynchronizationSignal).
  • FIG. 7 is a diagram showing a configuration example of the SS / PBCH block according to one aspect of the present embodiment.
  • the horizontal axis represents the time axis (OFDM symbol index l sym ), and the vertical axis represents the frequency domain.
  • the shaded blocks indicate a set of resource elements for PSS.
  • the grid block indicates a set of resource elements for the SSS.
  • the horizontal line block indicates a set of resource elements for PBCH and DMRS for the PBCH (DMRS related to PBCH, DMRS contained in PBCH, DMRS corresponding to PBCH).
  • the SS / PBCH block includes PSS, SSS, and PBCH. Also, the SS / PBCH block contains four consecutive OFDM symbols.
  • the SS / PBCH block contains 240 subcarriers.
  • the PSS is located in the 57th to 183rd subcarriers of the 1st OFDM symbol.
  • the SSS is located in the 57th to 183rd subcarriers of the 3rd OFDM symbol. Zero may be set for the 1st to 56th subcarriers of the 1st OFDM symbol.
  • 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 placed in the 1st to 240th subcarriers of the second OFDM symbol and in which the DMRS for the PBCH is not placed.
  • the PBCH is placed in the 1st to 48th subcarriers of the 3rd OFDM symbol and in which the DMRS for the PBCH is not placed.
  • the PBCH is placed in the 193rd to 240th subcarriers of the third OFDM symbol and in which the DMRS for the PBCH is not placed.
  • the PBCH is placed in the 1st to 240th subcarriers of the 4th OFDM symbol and in which the DMRS for the PBCH is not placed.
  • the antenna ports of PSS, SSS, PBCH, and DMRS for PBCH may be the same.
  • the PBCH to which the PBCH symbol is transmitted at an antenna port is the DMRS for the PBCH placed in the slot to which the PBCH is mapped and for the PBCH contained in the SS / PBCH block containing the PBCH. It may be estimated by DMRS of.
  • DL DMRS is a general term for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.
  • a set of antenna ports for DMRS (DMRS related to PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) for PDSCH may be given based on the set of antenna ports for PDSCH. That is, the set of DMRS antenna ports for the PDSCH may be the same as the set of antenna ports for the PDSCH.
  • the transmission of the PDSCH and the transmission of the DMRS for the PDSCH may be indicated (or scheduled) in one DCI format.
  • the PDSCH and the DMRS for the PDSCH may be collectively referred to as a PDSCH.
  • Transmission of PDSCH may be transmission of PDSCH and DMRS for the PDSCH.
  • the PDSCH may be estimated from the DMRS for the PDSCH. That is, the propagation path of the PDSCH may be estimated from the DMRS for the PDSCH. If a set of resource elements to which a certain PDSCH symbol is transmitted and a set of resource elements to which a DMRS symbol for a certain PDSCH is transmitted are included in the same recording resource group (PRG: Precoding Resource Group). In some cases, the PDSCH to which the PDSCH symbol is transmitted at an antenna port may be estimated by the DMRS for the PDSCH.
  • PRG Precoding Resource Group
  • the antenna port of DMRS for PDCCH (DMRS related to PDCCH, DMRS included in PDCCH, DMRS corresponding to PDCCH) may be the same as the antenna port for PDCCH.
  • PDCCH may be estimated from DMRS for the PDCCH. That is, the propagation path of the PDCCH may be estimated from the DMRS for the PDCCH. If a set of resource elements to which a PDCCH symbol is transmitted and a set of resource elements to which a DMRS symbol for the PDCCH is transmitted, the same precoder is applied (assumed to be applied). If applicable), the PDCCH at which the PDCCH symbol is transmitted at an antenna port may be estimated by the DMRS for the PDCCH.
  • BCH Broadcast CHannel
  • UL-SCH Uplink-Shared CHannel
  • DL-SCH Downlink-Shared CHannel
  • the channels used in the MAC layer are called transport channels.
  • the unit of the transport channel used in the MAC layer is also called a transport block (TB) or a MAC PDU (Protocol Data Unit).
  • HARQ Hybrid Automatic Repeat reQuest
  • a transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, the transport block is mapped to codewords, and modulation processing is performed for each codeword.
  • One UL-SCH and one DL-SCH may be given for each serving cell.
  • BCH may be given to PCell.
  • BCH does not have to be given to PSCell and SCell.
  • BCCH Broadcast Control Channel
  • CCCH Common Control Channel
  • DCCH Dedicated Control Channel
  • BCCH is a MIB or RRC layer channel used to transmit system information.
  • CCCH Common Control CHannel
  • CCCH Common Control CHannel
  • DCCH Dedicated Control CHannel
  • the DCCH may be at least used for transmitting a dedicated RRC message to the terminal device 1.
  • the DCCH may be used, for example, for the terminal device 1 connected by RRC.
  • the RRC message contains one or more RRC parameters (information elements).
  • the RRC message may include a MIB.
  • the RRC message may also include system information.
  • the RRC message may include a message corresponding to CCCH.
  • the RRC message may include a message corresponding to DCCH.
  • An RRC message containing a message corresponding to a DCCH is also referred to as an individual RRC message.
  • BCCH in the logical channel may be mapped to BCH or DL-SCH in the transport channel.
  • CCCH on the logical channel may be mapped to DL-SCH or UL-SCH on the transport channel.
  • DCCH on the logical channel may be mapped to DL-SCH or UL-SCH on the transport channel.
  • UL-SCH in the transport channel may be mapped to PUSCH in the physical channel.
  • the DL-SCH in the transport channel may be mapped to the PDSCH in the physical channel.
  • BCH in the transport channel may be mapped to PBCH in the physical channel.
  • the upper layer parameter is a parameter included in the RRC message or MAC CE (Medium Access Control Control Element). That is, the upper layer parameter is a general term for MIB, system information, a message corresponding to CCCH, a message corresponding to DCCH, and information included in MAC CE.
  • the procedure performed by the terminal device 1 includes at least a part or all of the following 5A to 5C.
  • the cell search is a procedure used for detecting a physical cell ID (physical cell identity) by synchronizing a cell with respect to a time domain and a frequency domain by the terminal device 1. That is, the terminal device 1 may detect the physical cell ID by synchronizing the time domain and the frequency domain with a certain cell by cell search.
  • the PSS sequence is given at least based on the physical cell ID.
  • the SSS sequence is given at least based on the physical cell ID.
  • the SS / PBCH block candidate indicates a resource for which transmission of the SS / PBCH block is permitted (possible, reserved, set, specified, and possible).
  • the set of SS / PBCH block candidates in a certain half radio frame is also called an SS burst set.
  • the SS burst set is also referred to as a transmission window (transmission window), an SS transmission window (SS transmission window), or a DRS transmission window (Discovery Reference Signal transmission window).
  • the SS burst set is a general term including at least a first SS burst set and a second SS burst set.
  • the base station device 3 transmits one or a plurality of index SS / PBCH blocks at a predetermined cycle.
  • the terminal device 1 may detect at least one SS / PBCH block of the SS / PBCH block of the one or more indexes and try to decode the PBCH contained in the SS / PBCH block.
  • Random access is a procedure that includes at least a part or all of message 1, message 2, message 3, and message 4.
  • Message 1 is a procedure in which PRACH is transmitted by the terminal device 1.
  • the terminal device 1 transmits PRACH at one PRACH opportunity selected from one or more PRACH opportunities based on at least the index of SS / PBCH block candidates detected based on the cell search.
  • Each PRACH opportunity is defined based on at least time domain and frequency domain resources.
  • the terminal device 1 transmits one random access preamble selected from the PRACH opportunities corresponding to the index of the SS / PBCH block candidate in which the SS / PBCH block is detected.
  • Message 2 is a procedure for attempting to detect DCI format 1_0 accompanied by CRC (Cyclic Redundancy Check) scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) by the terminal device 1.
  • the terminal device 1 includes the DCI format in the control resource set given based on the MIB included in the PBCH included in the SS / PBCH block detected based on the cell search, and the resource indicated based on the setting of the search area set. Attempts to detect PDCCH.
  • Message 3 is a procedure for transmitting a PUSCH scheduled by a random access response grant included in DCI format 1_0 detected by the message 2 procedure.
  • the random access response grant is indicated by the MAC CE included in the PDSCH scheduled according to the DCI format 1_0.
  • the PUSCH scheduled based on the random access response grant is either Message 3 PUSCH or PUSCH.
  • Message 3 PUSCH includes a conflict resolution identifier (contention resolution identifier) MAC CE.
  • Conflict resolution ID MAC CE includes a conflict resolution ID.
  • Message 3 PUSCH retransmissions are scheduled in DCI format 0_0 with a CRC scrambled based on TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).
  • TC-RNTI Temporary Cell-Radio Network Temporary Identifier
  • Message 4 is a procedure for attempting to detect DCI format 1_0 with CRC scrambled based on either C-RNTI (Cell-Radio Network Temporary Identifier) or TC-RNTI.
  • the terminal device 1 receives the PDSCH scheduled based on the DCI format 1_0.
  • the PDSCH may include a conflict resolution ID.
  • Data communication is a general term for downlink communication and uplink communication.
  • the terminal device 1 attempts to detect PDCCH in the control resource set and the resource specified based on the search area set (monitors PDCCH, monitors PDCCH).
  • the control resource set is a set of resources composed of a predetermined number of resource blocks and a predetermined number of OFDM symbols.
  • the control resource set may be composed of continuous resources (non-interleaved mapping) or distributed resources (interleaver mapping).
  • the set of resource blocks that make up the control resource set may be indicated by the upper layer parameters.
  • the number of OFDM symbols that make up the control resource set may be indicated by the upper layer parameters.
  • the terminal device 1 attempts to detect PDCCH in the search area set.
  • the attempt to detect the PDCCH in the search area set may be an attempt to detect a PDCCH candidate in the search area set, or an attempt to detect the DCI format in the search area set.
  • the control resource set may attempt to detect the PDCCH, the control resource set may attempt to detect the PDCCH candidate, or the control resource set may attempt to detect the DCI format. There may be.
  • the search area set is defined as a set of PDCCH candidates.
  • the search area set may be a CSS (Common Search Space) set or a USS (UE-specific Search Space) set.
  • the terminal device 1 includes a type 0 PDCCH common search area set (Type 0 PDCCH common search space set), a type 0a PDCCH common search area set (Type 0a PDCCH common search space set), and a type 1 PDCCH common search area set (Type 1 PDCCH common search space set).
  • One of the type 2 PDCCH common search area set (Type2 PDCCH common search space set), the type 3 PDCCH common search area set (Type3 PDCCH common search space set), and / or the UE individual PDCCH search area set (UE-specific search space set). Attempts to detect PDCCH candidates in part or all.
  • the type 0PDCCH common search area set may be used as the common search area set of index 0.
  • the type 0PDCCH common search area set may be a common search area set with index 0.
  • the CSS set is a general term for a type 0 PDCCH common search area set, a type 0a PDCCH common search area set, a type 1 PDCCH common search area set, a type 2 PDCCH common search area set, and a type 3 PDCCH common search area set.
  • the USS set is also referred to as the UE individual PDCCH search area set.
  • a search area set is associated with (included, corresponds to) a control resource set.
  • the index of the control resource set associated with the search area set may be indicated by the upper layer parameters.
  • 6A to 6C may be indicated by at least upper layer parameters.
  • the monitoring opportunity of a certain search area set may correspond to an OFDM symbol in which the first OFDM symbol of the control resource set related to the certain search area set is arranged.
  • the monitoring opportunity of a search region set may correspond to the resources of the control resource set starting with the first OFDM symbol of the control resource set associated with the search region set.
  • the monitoring opportunity for the search region set is given at least based on the PDCCH monitoring interval, the PDCCH monitoring pattern in the slot, and some or all of the PDCCH monitoring offsets.
  • FIG. 8 is a diagram showing an example of a monitoring opportunity of the search area set according to one aspect of the present embodiment.
  • the search area set 91 and the search area set 92 are set in the primary cell 301
  • the search area set 93 is set in the secondary cell 302
  • the search area set 94 is set in the secondary cell 303.
  • the blocks indicated by the grid lines indicate the search area set 91
  • the blocks indicated by the upward-sloping diagonal line indicate the search area set 92
  • the blocks indicated by the upward-sloping diagonal line indicate the search area set 93, which are indicated by horizontal lines.
  • the blocks shown show the search area set 94.
  • the monitoring interval of the search area set 91 is set to 1 slot
  • the monitoring offset of the search area set 91 is set to 0 slot
  • the monitoring pattern of the search area set 91 is [1,0,0,0,0,0, It is set to 0,1,0,0,0,0,0,0]. That is, the monitoring opportunity of the search region set 91 corresponds to the first OFDM symbol (OFDM symbol # 0) and the eighth OFDM symbol (OFDM symbol # 7) in each of the slots.
  • 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 slot, and the monitoring pattern of the search area set 92 is [1,0,0,0,0,0, It is set to 0,0,0,0,0,0,0,0]. That is, the monitoring opportunity of the search area set 92 corresponds to the first OFDM symbol (OFDM symbol # 0) in each of the even slots.
  • the monitoring interval of the search area set 93 is set to 2 slots
  • the monitoring offset of the search area set 93 is set to 0 slot
  • the monitoring pattern of the search area set 93 is [0,0,0,0,0,0, It is set to 0,1,0,0,0,0,0,0]. That is, the monitoring opportunity of the search region set 93 corresponds to the eighth OFDM symbol (OFDM symbol # 7) in each of the even slots.
  • the monitoring interval of the search area set 94 is set to 2 slots, the monitoring offset of the search area set 94 is set to 1 slot, and the monitoring pattern of the search area set 94 is [1,0,0,0,0,0, It is set to 0,0,0,0,0,0,0,0]. That is, the monitoring opportunity of the search area set 94 corresponds to the first OFDM symbol (OFDM symbol # 0) in each of the odd slots.
  • the Type 0 PDCCH common search area set may at least be used for the DCI format with a CRC (Cyclic Redundancy Check) sequence scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).
  • CRC Cyclic Redundancy Check
  • the Type 0a PDCCH common search area set may at least be used for the DCI format with a CRC (Cyclic Redundancy Check) sequence scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).
  • CRC Cyclic Redundancy Check
  • the type 1 PDCCH common search area set includes a CRC series scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) and / or a CRC series scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier). It may be used at least for the accompanying DCI format.
  • RA-RNTI Random Access-Radio Network Temporary Identifier
  • TC-RNTI Temporary Cell-Radio Network Temporary Identifier
  • the Type 2 PDCCH common search region set may be used for the DCI format with CRC sequences scrambled by P-RNTI (Paging-Radio Network Temporary Identifier).
  • P-RNTI Paging-Radio Network Temporary Identifier
  • the Type 3 PDCCH common search region set may be used for the DCI format with CRC sequences scrambled by C-RNTI (Cell-Radio Network Temporary Identifier).
  • C-RNTI Cell-Radio Network Temporary Identifier
  • the UE individual PDCCH search region set may be at least used for DCI formats with CRC sequences scrambled by C-RNTI.
  • the terminal device 1 detects the downlink DCI format.
  • the detected downlink DCI format is at least used for PDSCH resource allocation.
  • the detected downlink DCI format is also referred to as 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 HARQ-ACK corresponding to the PDSCH (HARQ-ACK corresponding to the transport block included in the PDSCH) is reported to the base station apparatus 3.
  • the terminal device 1 In uplink communication, the terminal device 1 detects the uplink DCI format.
  • the detected DCI format is at least used for PUSCH resource allocation.
  • the detected uplink DCI format is also referred to as an uplink grant.
  • the terminal device 1 transmits the PUSCH.
  • the uplink grant that schedules the PUSCH is set for each transmission cycle of the PUSCH.
  • the PUSCH is scheduled by the uplink DCI format, some or all of the information presented by the uplink DCI format may be presented by the uplink grant set in the case of the scheduling set.
  • the time resource of one or more PUSCHs may be determined by the allocation of the time resource of the PUSCH indicated by the uplink grant. That is, one uplink grant may schedule one or more PUSCHs.
  • one uplink grant may schedule one or more PUSCHs.
  • PUSCH PUSCH
  • PUSCHs PUSCHs
  • the PUSCH format may be given at least in part or all of the transport block placement period, the modulation symbol sequence placement period, the DMRS placement period for the PUSCH, and the PUSCH coherence period. good.
  • the terminal device 1 transmits the PUSCH, the terminal device 1 has one of a transport block arrangement cycle, a modulation symbol series arrangement cycle, a DMRS arrangement cycle for the PUSCH, and a coherence cycle of the PUSCH.
  • the format of the PUSCH may be determined based on at least a part or all.
  • the base station apparatus 3 When the base station apparatus 3 receives the PUSCH transmitted from the terminal apparatus 1, the base station apparatus 3 has a transport block arrangement cycle, a modulation symbol sequence arrangement cycle, a DMRS arrangement cycle for the PUSCH, and a DMRS arrangement cycle for the PUSCH.
  • the format of the PUSCH may be determined based on at least a part or all of the coherence period of the PUSCH.
  • the PUSCH time resource is 8 slots
  • the transport block placement cycle is 4 slots
  • the modulation symbol sequence placement cycle is 2 slots
  • the arrangement cycle may be 2 slots and the coherence cycle of the PUSCH may be 4 slots.
  • the PUSCH time resource is 8 slots
  • the transport block placement cycle is 8 slots
  • the modulation symbol sequence placement cycle is 1 slot
  • the DMRS for the PUSCH may be 1 slot
  • the coherence cycle of the PUSCH may be 4 slots.
  • the PUSCH time resource is 8 slots
  • the transport block placement period is 8 slots
  • the modulation symbol sequence placement period is 4 slots
  • the arrangement cycle may be one slot
  • the coherence cycle of the PUSCH may be one slot.
  • the PUSCH time resource indicated by the uplink grant may include multiple slots.
  • the number of PUSCHs may be one or may be plural.
  • PUSCH may be the same as the number of slots.
  • FIG. 9 is a diagram showing an example of the PUSCH format according to one aspect of the present embodiment.
  • the horizontal axis represents the time axis.
  • a plurality of slots (8 slots in FIG. 9) are shown on the time axis.
  • the plurality of slots in FIG. 9 are indexed in chronological order from slot # 0 (slot # 0) to slot # 7 (slot # 7).
  • the plurality of slots are arranged continuously in the time domain, but the aspect of the present invention is not limited to the plurality of slots being arranged continuously in the time domain.
  • the plurality of slots may be composed of slots capable of uplink transmission. That is, in the aspect of the present invention, the configuration may be such that a plurality of slots do not include slots capable of downlink transmission.
  • one uplink grant may indicate a PUSCH transmitted in eight slots including slot # 0 to slot # 7.
  • the PUSCH may include one transport block.
  • the arrangement cycle (TB mapping period) of the transport block of the PUSCH may be 8 slots.
  • the modulation symbol mapping period of the series of modulation symbols of the PUSCH may be 4 slots.
  • the DMRS mapping period for the PUSCH may be 2.
  • the DMRS coherence period (Channel coherence) for the PUSCH may be 2.
  • the arrangement cycle of the transport block may correspond to the number of slots including a certain transport block.
  • the transport block may be arranged over a length X0 of one period of the arrangement cycle of the transport block.
  • X0 may be determined at least based on RRC parameters.
  • X0 may be indicated by an RRC parameter.
  • X0 may be determined at least based on the signal of the upper layer.
  • X0 may be indicated by an upper layer signal.
  • X0 may be indicated by the uplink grant used to schedule the PUSCH transmitted including the transport block.
  • X0 may be determined at least based on the uplink grant used to schedule the PUSCH transmitted including the transport block.
  • X0 may be represented by one DCI format.
  • X0 may be determined based on at least one DCI format.
  • X0 may indicate the number of slots.
  • X0 may indicate the number of OFDM symbols.
  • X0 may be given at least based on the configuration of the PUSCH time domain (eg, the PUSCH time resource) scheduled by one uplink grant.
  • X0 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine X0 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine X0 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the desired data rate may be achieved regardless of the configuration of the PUSCH time domain.
  • dynamic TDD and the like it is not always possible to always use a predetermined configuration as the configuration of the time domain of PUSCH, and control of X0 is preferable.
  • X0 when the configuration of the time domain of PUSCH is the first configuration, X0 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X0 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X0 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X0 may be a second value different from the first value.
  • the configuration of the PUSCH time domain may be the number of slots in which the PUSCH is arranged.
  • the configuration of the PUSCH time domain may be the number of OFDM symbols in which the PUSCH is placed.
  • the PUSCH time domain configuration may be the DMRS time domain configuration for the PUSCH.
  • FIG. 10 is a diagram showing an example of arrangement of modulation symbols according to one aspect of the present embodiment.
  • the horizontal axis represents the time axis and the vertical axis represents the frequency axis.
  • each of the blocks spread in the time frequency domain shows one resource element.
  • a configuration in which x1 slots are arranged is shown.
  • the sequence of modulation symbols resulting from one transport block may be placed in a resource element contained in x1 slots based on the Frequency-first Time-second manner.
  • the frequency first time second method may be a method in which modulation symbols are arranged on a plurality of resource elements arranged in the time frequency domain based on the following procedure. Step 1) Identify the first set of resource elements in the time domain and proceed to step 2 Step 2) Place modulation symbols in order from the first resource element in the frequency domain in the specified set of resource elements 3) Compare with the identified set of resource elements, identify the next set of resource elements in the time domain, and proceed to step 2).
  • procedure 1 in FIG. 10 may specify a set of resource elements including at least resource element A1, resource element A2, and resource element A3. Further, the procedure 2 in FIG. 10 may be to arrange the modulation symbols in order from the resource element A1 through the resource element A2 to the resource element A3. Further, the procedure 3 in FIG. 10 may specify a set of resource elements including at least the resource element A4, the resource element A5, and the resource element A6. Further, the procedure 2 after the procedure 3 in FIG. 10 may be to arrange the modulation symbols in order from the resource element A4 through the resource element A5 to the resource element A6.
  • the sequence of modulation symbols generated from one transport block may be arranged based on the frequency first time second method with respect to the resource element included in the length X1 of one cycle of the modulation symbol arrangement cycle.
  • X1 may be indicated by an RRC parameter.
  • X1 may be determined at least based on RRC parameters.
  • X1 may be determined at least based on the signal of the upper layer.
  • X1 may be indicated by an uplink grant used to schedule the PUSCH transmitted including the transport block.
  • X1 may be determined at least based on the uplink grant used to schedule the PUSCH transmitted including the transport block.
  • X1 may be represented by one DCI format.
  • X1 may be determined based on at least one DCI format.
  • X1 may indicate the number of slots.
  • X1 may indicate the number of OFDM symbols.
  • the terminal device 1 determines X1 based on at least the first control information
  • the sequence of modulation symbols generated from one transport block is included in the length X1 of one cycle of the arrangement cycle of the sequence of modulation symbols. It may be arranged based on the frequency first time second method with respect to the resource element.
  • the first control information includes RRC parameters, upper layer signals, uplink grants used to schedule PUSCHs transmitted including the transport block, and some or all of one DCI format. It may be determined at least on the basis.
  • the sequence of modulation symbols generated from the transport block included in the message 3 PUSCH is frequency-first with respect to the resource element included in one slot. It may be arranged based on the time second method. That is, even when the terminal device 1 holds the first control information, X1 may be one slot for the transport block included in the message 3 PUSCH.
  • holding a certain control information in the terminal device 1 may mean that the terminal device 1 is set based on the certain control information.
  • holding a certain control information in the terminal device 1 may mean that the terminal device 1 performs a process based on the certain control information.
  • the fact that the terminal device 1 holds the first control information may mean that the terminal device 1 holds X1.
  • the first control information may be information indicating X1.
  • the first control information is information other than the information indicating X1, but may be information used to determine the X1.
  • the sequence of modulation symbols generated from the transport block included in the PUSCH scheduled by the random access response grant is a resource element included in one slot.
  • it may be arranged based on the frequency first time second method. That is, even when the terminal device 1 holds the first control information, X1 may be one slot for the transport block included in the PUSCH scheduled by the random access response grant.
  • the sequence of modulation symbols generated from the transport block included in the PUSCH is in the frequency first time second system for the resource element contained in one slot. It may be arranged based on. That is, when the terminal device 1 does not hold the first control information, X1 may be one slot with respect to the transport block included in the PUSCH.
  • X1 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X1 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine X1 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine X1 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X1 when the configuration of the time domain of PUSCH is the first configuration, X1 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X1 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X1 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X1 may be a second value different from the first value.
  • X1 may be given at least based on X0.
  • X1 may be determined at least based on X0.
  • the terminal device 1 may determine X1 based on at least X0.
  • the base station apparatus 3 may determine X1 based on at least X0.
  • X1 when X0 is the first value, X1 may be the second value. Further, when X0 is a third value different from the first value, X1 may be a fourth value different from the second value.
  • a sequence of modulation symbols may be generated by modulation of a sequence of coded bits resulting from one transport block.
  • the modulation method may be QPSK (Quadarature Phase Shift Keying), 16QAM (Quadarature Amplitude Modulation), 64QAM, 256QAM, (1/2) ⁇ BPSK (Binary Phase Shift Keying).
  • a predetermined scramble may be performed on the sequence of encoded bits prior to the generation of the sequence of modulation symbols.
  • the position of the coding bit included in the first modulation symbol in the sequence of modulation symbols may be given by RV (RedandancyVersion).
  • RV is information indicating the position of the first coding bit in the series of coding bits used in the generation of the series of modulation symbols.
  • the information indicating the RV is contained in at least one of the RRC parameters, the upper layer signal, the uplink grant used for the scheduling information of the PUSCH transmitted including the transport block, or one DCI format. May be good.
  • the RV may be given at least based on either an RRC parameter, an upper layer signal, an uplink grant used for PUSCH scheduling information transmitted including a transport block, or one DCI format. ..
  • one RV may be given for each cycle of the arrangement cycle of the sequence of modulation symbols.
  • a coding bit included in the first modulation symbol of the series of modulation symbols may be given for each cycle of the arrangement cycle of the series of modulation symbols.
  • the information indicating each of the RVs for each placement cycle of the sequence of modulation symbols is the uplink used for the PUSCH scheduling information transmitted including the RRC parameter, the upper layer signal, and the transport block. It may be included in either a grant or at least one DCI format.
  • one RV per cycle of the sequence of modulation symbols is an uplink grant or 1 used for PUSCH scheduling information transmitted including RRC parameters, upper layer signals, and transport blocks. It may be determined based on at least one of the two DCI formats.
  • one RV may be shown for one cycle including slot # 0 to slot # 3, and one RV may be shown for one cycle including slot # 4 to slot # 7. May be shown.
  • one RV is shown for the first cycle of the placement cycles of the sequence of one or more modulation symbols included in the PUSCH time domain.
  • the information indicating the one RV is either the uplink grant used for the scheduling information of the PUSCH transmitted including the RRC parameter, the signal of the upper layer, and the transport block, or at least one of the DCI formats. May be included in.
  • the RV for each of the arrangement cycles of the sequence of one or a plurality of modulation symbols included in the time domain of the PUSCH other than the first one cycle may be given at least based on the one RV. ..
  • the DMRS placement cycle is the cycle in which the DMRS placement pattern in the time domain is applied. For example, when the length of one DMRS arrangement cycle is X2, the DMRS arrangement pattern in the time domain may be applied for each length X2.
  • the DMRS placement pattern may be information indicating a set of indexes of OFDM symbols to which DMRS is mapped at length X2.
  • the index of the OFDM symbol may be the index of the OFDM symbol with reference to the reference point (OFDM symbol whose index is considered to be 0).
  • the reference point for a certain cycle of the DMRS arrangement cycle included in the time domain of PUSCH may be the first OFDM symbol included in the one cycle.
  • the reference point for a certain cycle of the DMRS arrangement cycle included in the time domain of PUSCH may be determined by a certain OFDM symbol included in the one cycle.
  • X2 may be determined at least based on RRC parameters.
  • X2 may be indicated by an RRC parameter.
  • X2 may be determined at least based on the signal of the upper layer.
  • X2 may be indicated by the parameters of the upper layer.
  • X2 may be indicated by an uplink grant used to schedule the PUSCH transmitted including the transport block.
  • X2 may be determined at least based on the uplink grant used to schedule the PUSCH transmitted including the transport block.
  • X2 may be represented by one DCI format.
  • X2 may be determined based on at least one DCI format.
  • X2 may indicate the number of slots.
  • X2 may indicate the number of OFDM symbols.
  • the DMRS arrangement pattern for PUSCH may be applied to each X2 slot.
  • the second control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used to schedule the PUSCH, and some or all of one DCI format.
  • the DMRS arrangement pattern for the message 3 PUSCH may be applied for each slot. That is, even when the terminal device 1 holds the second control information, X2 may be one slot for the message 3 PUSCH.
  • the fact that the terminal device 1 holds the second control information may mean that the terminal device 1 holds X2.
  • the second control information may be information indicating X2.
  • the second control information is information other than the information indicating X2, but may be information used to determine the X2.
  • the DMRS arrangement pattern for PUSCH scheduled by the random access response grant may be applied for each slot. That is, even when the terminal device 1 holds the second control information, X2 may be one slot for the PUSCH scheduled by the random access response grant.
  • the DMRS arrangement pattern for PUSCH may be applied for each slot. That is, when the terminal device 1 does not hold the second control information, X2 may be one slot with respect to PUSCH.
  • X2 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X2 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine X2 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine X2 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X2 By controlling X2 based on at least the configuration of the PUSCH time domain, it may be possible to preferably implement the arrangement of DMRS based on the configuration of the PUSCH time domain. Since the density of DMRS in the time domain is controlled by X2, the density of DMRS in a suitable time domain may be different if the composition of the time domain of PUSCH is different.
  • X2 when the configuration of the time domain of PUSCH is the first configuration, X2 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X2 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X2 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X2 may have a second value different from the first value.
  • X2 may be given at least based on X0.
  • X2 may be determined at least based on X0.
  • the terminal device 1 may determine X1 based on at least X0.
  • the base station apparatus 3 may determine X1 based on at least X0.
  • X2 when X0 is the first value, X2 may be the second value. Further, when X0 is a third value different from the first value, X2 may be a fourth value different from the second value.
  • X2 may be given at least based on X1.
  • X2 may be determined at least based on X1.
  • the terminal device 1 may determine X2 based on at least X1.
  • the base station apparatus 3 may determine X2 based on at least X1.
  • X2 X1 may be set.
  • X1 when X1 is the first value, X2 may be the second value. Further, when X1 is a third value different from the first value, X2 may be a fourth value different from the second value.
  • the coherence cycle may be a cycle in which the radio section information can be regarded as the same.
  • the radio section information may be information on the phase and / or amplitude that fluctuates as the modulation symbol placed in a resource element is transmitted to the radio section.
  • the radio section information may be information including the influence of the precoder applied prior to the transmission of the modulated symbol.
  • the terminal device 1 does not have to generate the PUSCH so that the radio section information is considered to be the same beyond the coherence period.
  • the terminal device 1 may generate the PUSCH so that the radio section information is considered to be the same within the coherence cycle.
  • the base station device 3 does not have to consider that the radio section information is the same beyond the coherence cycle.
  • the base station device 3 may consider that the radio section information is the same within the coherence cycle.
  • one modulation symbol in the coherence cycle may be able to estimate the radio section information of another modulation symbol in the coherence cycle.
  • the coherence cycle may be set so that a modulation symbol in the coherence cycle can estimate the radio section information of another modulation symbol in the coherence cycle.
  • the length X3 of one cycle of the PUSCH coherence cycle may be determined at least based on the RRC parameter.
  • X3 may be indicated by an RRC parameter.
  • X3 may be determined at least based on the signal of the upper layer.
  • X3 may be indicated by an upper layer signal.
  • X3 may be indicated by an uplink grant used to schedule the PUSCH transmitted including the transport block.
  • X3 may be determined at least based on the uplink grant used to schedule the PUSCH transmitted including the transport block.
  • X3 may be represented by one DCI format.
  • X3 may be determined based on at least one DCI format.
  • the terminal device 1 determines X3 based on at least the third control information, it may be considered that the radio section information is the same in the X3 slot.
  • the third control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used to schedule the PUSCH, and some or all of one DCI format.
  • the radio section information for the message 3 PUSCH may be regarded as the same radio section information in one slot. That is, even when the terminal device 1 holds the third control information, X3 may be one slot for the message 3 PUSCH.
  • the fact that the terminal device 1 holds the third control information may mean that the terminal device 1 holds X3.
  • the third control information may be information indicating X3.
  • the third control information is information other than the information indicating X3, but may be information used to determine the X3.
  • the radio section information for PUSCH scheduled by the random access response grant is considered to have the same radio section information in one slot. May be good. That is, even when the terminal device 1 holds the third control information, X3 may be one slot for the PUSCH scheduled by the random access response grant.
  • the radio section information for PUSCH may be regarded as the same radio section information in one slot. That is, when the terminal device 1 does not hold the third control information, X3 may be one slot with respect to PUSCH.
  • X3 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X3 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine X3 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine X3 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X3 when the configuration of the time domain of PUSCH is the first configuration, X3 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X3 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X3 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X3 may have a second value different from the first value.
  • X3 may be given at least based on X0.
  • X3 may be determined at least based on X0.
  • the terminal device 1 may determine X3 based on at least X0.
  • the base station apparatus 3 may determine X3 based on at least X0.
  • X3 when X0 is the first value, X3 may be the second value. Further, when X0 is a third value different from the first value, X3 may be a fourth value different from the second value.
  • X3 may be given at least based on X1.
  • X3 may be determined at least based on X1.
  • the terminal device 1 may determine X3 based on at least X1.
  • the base station apparatus 3 may determine X3 based on at least X1.
  • X3 when X1 is the first value, X3 may be the second value. Further, when X1 is a third value different from the first value, X3 may be a fourth value different from the second value.
  • X3 may be given at least based on X2.
  • X3 may be determined at least based on X2.
  • the terminal device 1 may determine X3 based on at least X2.
  • the base station apparatus 3 may determine X3 based on at least X2.
  • X3 By controlling X3 based on at least X2, it may be possible to suitably control the operation of channel estimation of the base station apparatus 3 based on the arrangement cycle of DMRS. Since the density in the time domain can be controlled by the arrangement cycle of the DMRS, it is preferable to control the operation of the channel estimation of the base station apparatus 3.
  • X3 when X2 is the first value, X3 may be the second value. Further, when X2 is a third value different from the first value, X3 may be a fourth value different from the second value.
  • X2 may be given at least based on X3.
  • X2 may be determined at least based on X3.
  • the terminal device 1 may determine X2 based on at least X3.
  • the base station apparatus 3 may determine X2 based on at least X3.
  • the transport block placement cycle, the modulation symbol sequence placement cycle, the DMRS placement cycle for the PUSCH, and the PUSCH coherence period may have different values. It may be set individually.
  • the terminal device 1 supports a plurality of services (for example, broadband service, low latency service, automobile service, etc.), it is possible to configure a PUSCH format suitable for each service.
  • a plurality of services for example, broadband service, low latency service, automobile service, etc.
  • Supporting a flexible PUSCH format is also suitable for ensuring a predetermined transmission power.
  • the arrangement cycle of the transport block can be set to a plurality of slots. It is possible to secure a larger maximum transmission power as compared with the case where one slot is used.
  • the expected data rate also called transmission speed, throughput, etc.
  • the arrangement cycle of the transport block may deteriorate by setting the arrangement cycle of the transport block to a plurality of slots.
  • Step 1 may further include at least part or all of steps 1a and 1b.
  • Step 1a) to determine the N a RE N RB sc ⁇ N sh symb -N PRB DMRS -N PRB oh
  • N sh symb may be the number of OFDM symbols assigned for PUSCH within the time length X4.
  • N PRB DMRS is an overhead value considering the resource element in which the DMRS for the PUSCH is arranged.
  • the N PRB DMRS may be the number per PRB of resource elements in which the DMRS is placed in the OFDM symbols assigned for the PUSCH.
  • N PRB oh is a value that takes into account the overhead caused by factors other than DMRS for PUSCH.
  • the element may include at least the overhead resulting from the control resource set or the placement of the CSI-RS.
  • N PRB oh is indicated by the RRC parameter.
  • the N PRB oh is 0 in the transmission of the message 3 PUSCH. Further, when the terminal device 1 does not hold the N PRB oh , it may be assumed that the N PRB oh is 0 in the transmission of the PUSCH.
  • X4 may be given by the fourth control information.
  • the fourth control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used to schedule the PUSCH, and some or all of one DCI format.
  • X4 may be one slot for the message 3 PUSCH.
  • the fact that the terminal device 1 holds the fourth control information may mean that the terminal device 1 holds X4.
  • the fourth control information may be information indicating X4.
  • the fourth control information is information other than the information indicating X4, but may be information used to determine the X4.
  • X4 may be one slot for the PUSCH scheduled by the random access response grant.
  • X4 may be one slot with respect to PUSCH.
  • the fourth control information may be the arrangement cycle of the transport block.
  • the time length X4 may be given at least based on the transport block placement period X0.
  • the time length X4 may be determined at least based on the transport block placement period X0.
  • the terminal device 1 may determine the time length X4 based on at least the arrangement cycle of the transport block being X0.
  • the base station apparatus 3 may determine the time length X4 based on at least the arrangement cycle of the transport block being X0.
  • the fourth control information may be the arrangement period of a series of modulation symbols.
  • the time length X4 may be given at least based on the arrangement period of the sequence of modulation symbols being X1.
  • the time length X4 may be determined at least based on the arrangement period of the sequence of modulation symbols being X1.
  • the terminal device 1 may determine the time length X4 at least based on the arrangement period of the sequence of modulation symbols being X1.
  • the base station apparatus 3 may determine the time length X4 at least based on the arrangement period of the sequence of modulation symbols being X1.
  • X4 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X4 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine X4 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine X4 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X4 By controlling X4 based on at least the configuration of the PUSCH time domain, it may be possible to achieve a desired data rate regardless of the configuration of the PUSCH time domain. For example, by setting X4 to 10 slots when the time resource of PUSCH is 10 slots, a data rate similar to that when setting X4 to 1 slot when the time resource of PUSCH is 1 slot is expected. Will be done.
  • X4 when the configuration of the time domain of PUSCH is the first configuration, X4 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X4 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X4 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X4 may have a second value different from the first value.
  • X4 may be given at least based on X0.
  • X4 may be determined at least based on X0.
  • the terminal device 1 may determine X4 based on at least X0.
  • the base station apparatus 3 may determine X4 based on at least X0.
  • X4 By controlling X4 based on at least X0, it may be possible to realize a predetermined data rate regardless of the arrangement cycle of the transport block. For example, by setting X4 to 10 slots when X0 is 10 slots, a data rate similar to that when X4 is set to 1 slot when X0 is 1 slot is expected.
  • X4 when X0 is the first value, X4 may be the second value. Further, when X0 is a third value different from the first value, X4 may be a fourth value different from the second value.
  • X4 may be given at least based on X1.
  • X4 may be determined at least based on X1.
  • the terminal device 1 may determine X4 based on at least X1.
  • the base station apparatus 3 may determine X4 based on at least X1.
  • X4 By controlling X4 based on at least X1, it may be possible to realize a predetermined data rate regardless of the arrangement period of the modulation symbols. For example, by setting X4 to 10 slots when X1 is 10 slots, a data rate similar to that when X4 is set to 1 slot when X1 is 1 slot is expected.
  • X4 when X1 is the first value, X4 may be the second value. Further, when X1 is a third value different from the first value, X4 may be a fourth value different from the second value.
  • X4 may be given at least based on X2.
  • X4 may be determined at least based on X2.
  • the terminal device 1 may determine X4 based on at least X2.
  • the base station apparatus 3 may determine X4 based on at least X2.
  • X4 By controlling X4 based on at least X2, it may be possible to realize a predetermined data rate regardless of the DMRS arrangement cycle. For example, by setting X4 to 10 slots when X2 is 10 slots, a data rate similar to that when X4 is set to 1 slot when X2 is 1 slot is expected.
  • X4 when X2 is the first value, X4 may be the second value. Further, when X2 is a third value different from the first value, X4 may be a fourth value different from the second value.
  • X4 may be given at least based on X3.
  • X4 may be determined at least based on X3.
  • the terminal device 1 may determine X4 based on at least X3.
  • the base station apparatus 3 may determine X4 based on at least X3.
  • X4 By controlling X4 based on at least X3, it may be possible to achieve a predetermined data rate regardless of the coherence period. For example, by setting X4 to 10 slots when X3 is 10 slots, a data rate similar to that when X4 is set to 1 slot when X3 is 1 slot is expected.
  • X4 when X3 is the first value, X4 may be the second value. Further, when X3 is a third value different from the first value, X4 may be a fourth value different from the second value.
  • n PRB may be the number of PRBs allocated for the PUSCH.
  • X5 may be determined at least based on the fifth control information.
  • the fifth control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used to schedule the PUSCH, or at least one of the DCI formats.
  • X5 may be 156RE for the message 3 PUSCH.
  • the fact that the terminal device 1 holds the fifth control information may mean that the terminal device 1 holds X5.
  • the fifth control information may be information indicating X5.
  • the fourth control information is information other than the information indicating X5, but may be information used to determine the X5.
  • X5 may be 156RE for the PUSCH scheduled by the random access response grant.
  • X5 may be 156RE with respect to PUSCH.
  • X5 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X5 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine X5 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine X5 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X5 may be given at least based on X0.
  • X5 may be determined at least based on X0.
  • the terminal device 1 may determine X5 based on at least X0.
  • the base station apparatus 3 may determine X5 based on at least X0.
  • X5 may be given at least based on X1.
  • X5 may be determined at least based on X1.
  • the terminal device 1 may determine X5 based on at least X1.
  • the base station apparatus 3 may determine X5 based on at least X1.
  • X5 may be given at least based on X2.
  • X5 may be determined at least based on X2.
  • the terminal device 1 may determine X5 based on at least X2.
  • the base station apparatus 3 may determine X5 based on at least X2.
  • X5 may be given at least based on X3.
  • X5 may be determined at least based on X3.
  • the terminal device 1 may determine X5 based on at least X3.
  • the base station apparatus 3 may determine X5 based on at least X3.
  • X5 may be given at least based on X4.
  • X5 may be determined at least based on X4.
  • the terminal device 1 may determine X5 based on at least X4.
  • the base station apparatus 3 may determine X5 based on at least X4.
  • X5 is a value estimated as the total number of resource elements allocated to data per X4 slot, it is preferable that X5 is controlled based on X4.
  • X5 when X4 is the first value, X5 may be the second value. Further, when X4 is a third value different from the first value, X5 may be a fourth value different from the second value.
  • R is the target coding rate determined by the value of the MCS field included in the uplink grant.
  • Q m is the order of the PUSCH modulation method or the modulation order of the PUSCH.
  • v is the number of PUSCH layers. The number of layers is also called a spatial multiple number or the like. That is, the layer may be the number of spatial streams.
  • step 3 switching between steps 3a and 3c is performed based on the value of Ninfo. For example, when the value of N info is below a predetermined value, step 3a may be performed. When the value of N info exceeds the predetermined value, step 3c may be performed.
  • the predetermined value may be 3824.
  • n max (3, floor ( Ninfo ) -6).
  • step 3b may be carried out after step 3a is carried out.
  • step 3b one value is selected from the candidate values for the size of the transport block included in the predetermined table.
  • the predetermined table has 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160 as candidate values for TBS.
  • the predetermined table may include a set of integer values in a range not exceeding the predetermined value.
  • step 3b and the candidate value of the most N a info to a value close TBS does not fall below the N a info, it may be determined from the predetermined table.
  • step 3d may be carried out after step 3c is carried out.
  • the target coding rate R may be controlled.
  • the target coding rate R may be a value exceeding 1.
  • the effective coding rate of the transport block is expected to exceed 1, so that communication is generally performed. It is impossible.
  • the effective coding rate of the transport block is less than 1. Suitable communication can be realized.
  • the target coding rate R may be a value exceeding a predetermined value.
  • the predetermined value may be a value included in the range of 0.93 to 1.
  • the predetermined value is a value close to the effective coding rate supported by New Radio.
  • the target code rate Rmax supported by New Radio is approximately 948/1024. That is, the predetermined value may be a value close to the target coding rate Rmax supported by the New Radio.
  • the effective code rate is calculated by dividing the size of the transport block by the product of the number of PUSCH resource elements included in the period in which the transport block is placed and the order of the modulation scheme of the PUSCH. May be good.
  • the MCS field included in the uplink grant used for PUSCH scheduling may indicate one index.
  • the target coding rate may be given based on the first MCS table and the one index.
  • the target code rate may be given based on the second MCS table and the one index.
  • all the target coding rates included in the first MCS table may be equal to or less than the predetermined value.
  • at least a part of the target coding rate included in the first MCS table may exceed the predetermined value.
  • all corresponding to QPSK modulation may be equal to or less than the predetermined value.
  • at least a part of the target coding rates included in the first MCS table corresponding to QPSK may exceed the predetermined value.
  • the terminal device 1 determines whether to refer to the first MCS table or the second MCS table based on the index indicated by the MCS field included in the uplink grant used for scheduling the PUSCH. May be good.
  • the base station apparatus 3 determines whether to refer to the first MCS table or the second MCS table based on the index indicated by the MCS field included in the uplink grant used for scheduling the PUSCH. You may.
  • the CRC series added to the DCI format of the uplink grant is scrambled by C-RNTI
  • the signal waveform of the PUSCH is DFT-s-OFDM
  • the transport is DFT-s-OFDM
  • the block arrangement cycle X0 may be one slot.
  • the CRC series added to the DCI format of the uplink grant is scrambled by C-RNTI
  • the signal waveform of the PUSCH is DFT-s-OFDM
  • the modulation symbol is DFT-s-OFDM
  • the arrangement period X1 of the series may be one slot.
  • the CRC series added to the DCI format of the uplink grant is scrambled by the C-RNTI
  • the signal waveform of the PUSCH is the DFT-s-OFDM
  • the arrangement cycle X0 of the transport block may be an integer exceeding one slot.
  • the CRC series added to the DCI format of the uplink grant is scrambled by the C-RNTI
  • the signal waveform of the PUSCH is the DFT-s-OFDM
  • the target coding rate may be given based on the third MCS table and the one index.
  • the CRC sequence added to the DCI format of the uplink grant is scrambled by the C-RNTI
  • the signal waveform of the PUSCH is the DFT-s-OFDM
  • the transport block is the C-RNTI
  • the arrangement cycle X0 may be one slot, and the terminal device 1 may hold an RRC parameter indicating that the third MCS table is set.
  • the CRC sequence added to the DCI format of the uplink grant is scrambled by the C-RNTI
  • the signal waveform of the PUSCH is the DFT-s-OFDM
  • the sequence of the modulation symbols may be held by the terminal device 1.
  • the first table may include modulation schemes of 64QAM or less.
  • the first table may not include modulation schemes (eg, 256QAM, etc.) that exceed the order of 64QAM.
  • the second table may include modulation schemes of 64QAM or less.
  • the second table may not include modulation schemes (eg, 256QAM, etc.) that exceed the order of 64QAM.
  • the third table may include a modulation scheme (eg, 256QAM, etc.) that exceeds the order of 64QAM.
  • a modulation scheme eg, 256QAM, etc.
  • the first table may be used for the message 3 PUSCH. Also in the second case, the first table may be used for the PUSCH scheduled by the random access response grant.
  • the target coding rate R may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the target code rate R may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine the target code rate R at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine the target code rate R at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the target coding rate R By controlling the target coding rate R based on at least the configuration of the PUSCH time domain, it may be possible to realize a desired data rate regardless of the configuration of the PUSCH time domain. For example, by setting the target coding rate R to about 4 when the time resource of PUSCH is 10 slots, the target coding rate R is set to 0.4 when the time resource of PUSCH is 1 slot. The same data rate as in the case is expected.
  • the target coding rate R when the configuration of the time domain of PUSCH is the first configuration, the target coding rate R may be the first value. Further, when the configuration of the time domain of the PUSCH is a second configuration different from the first configuration, the target coding rate R may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, the target coding rate R may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, the target coding rate R may be a second value different from the first value.
  • the target coding rate R may be given at least based on X0.
  • the target code rate R may be determined at least based on X0.
  • the terminal device 1 may determine the target code rate R based on at least X0.
  • the base station apparatus 3 may determine the target code rate R based on at least X0.
  • the target coding rate R By controlling the target coding rate R based on at least X0, it may be possible to realize a predetermined data rate regardless of the arrangement cycle of the transport block. For example, by setting the target coding rate R to about 4 when X0 is 10 slots, it is about the same as setting the target coding rate R to about 0.4 when X0 is 1 slot. Data rate is expected.
  • the target coding rate R when X0 is the first value, the target coding rate R may be the second value. Further, when X0 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.
  • the target coding rate R may be given at least based on X1.
  • the target code rate R may be determined at least based on X1.
  • the terminal device 1 may determine the target code rate R based on at least X1.
  • the base station apparatus 3 may determine the target code rate R based on at least X1.
  • the target coding rate R By controlling the target coding rate R based on at least X1, it may be possible to realize a predetermined data rate regardless of the arrangement period of the modulation symbols. For example, by setting the target coding rate R to about 4 when X1 is 10 slots, the target coding rate R is set to about 0.4 when X1 is 1 slot. Data rate is expected.
  • the target coding rate R when X1 is the first value, the target coding rate R may be the second value. Further, when X1 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.
  • the target coding rate R may be given at least based on X2.
  • the target code rate R may be determined at least based on X2.
  • the terminal device 1 may determine the target code rate R based on at least X2.
  • the base station apparatus 3 may determine the target code rate R based on at least X2.
  • the target coding rate R By controlling the target coding rate R based on at least X2, it may be possible to realize a predetermined data rate regardless of the DMRS arrangement period. For example, by setting the target coding rate R to about 4 when X2 has 10 slots, the data is about the same as when the target coding rate R is set to 0.4 when X2 has 1 slot. The rate is expected.
  • the target coding rate R when X2 is the first value, the target coding rate R may be the second value. Further, when X2 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.
  • the target coding rate R may be given at least based on X3.
  • the target code rate R may be determined at least based on X3.
  • the terminal device 1 may determine the target code rate R based on at least X3.
  • the base station apparatus 3 may determine the target code rate R based on at least X3.
  • the target coding rate R By controlling the target coding rate R based on at least X3, it may be possible to realize a predetermined data rate regardless of the coherence period. For example, by setting the target coding rate R to about 4 when X3 has 10 slots, the target coding rate R is set to about 0.4 when X3 has 1 slot. Data rate is expected.
  • the target coding rate R when X3 is the first value, the target coding rate R may be the second value. Further, when X3 is a third value different from the first value, the target coding rate R may be a fourth value different from the second value.
  • the size of the transport block may be controlled.
  • the first operator may be used to control the size of the transport block. That is, the first operator may act on at least one of the variables in the procedure and be used to control the size of the transport block.
  • the first size of the transport block may be given at least based on the first operator. For example, if the arrangement period X0 of the transport block exceeds one slot, the size of the transport block may be determined at least based on the first operator. For example, when the arrangement cycle X0 of the transport block exceeds one slot, the terminal device 1 may determine the size of the transport block based on at least the first operator. For example, when the arrangement cycle X0 of the transport block exceeds one slot, the base station apparatus 3 may determine the size of the transport block based on at least the first operator.
  • the second size of the transport block may be given without being based on the first operator.
  • the size of the transport block may be determined not based on the first operator.
  • the terminal device 1 may determine the size of the transport block without being based on the first operator.
  • the base station apparatus 3 may determine the size of the transport block without being based on the first operator.
  • the first operator may be an operator that acts so that the first size is larger than the second size.
  • the values of the various parameters used in determining the first size may be the same as the values of the various parameters used in determining the second size.
  • the first size of the transport block may be given at least based on the first operator. For example, if the arrangement period X1 of the sequence of modulation symbols exceeds one slot, the size of the transport block may be determined at least based on the first operator. For example, if the arrangement period X1 of the sequence of modulation symbols exceeds one slot, the terminal device 1 may determine the size of the transport block based on at least the first operator. For example, if the arrangement period X1 of the sequence of modulation symbols exceeds one slot, the base station apparatus 3 may determine the size of the transport block based on at least the first operator.
  • the second size of the transport block may be given without being based on the first operator.
  • the size of the transport block may be determined not based on the first operator.
  • the terminal device 1 may determine the size of the transport block without being based on the first operator.
  • the base station apparatus 3 may determine the size of the transport block without being based on the first operator.
  • the first operator may be an operator that acts so that the first size is larger than the second size.
  • the values of the various parameters used in determining the first size may be the same as the values of the various parameters used in determining the second size.
  • the first operator may be used in step 1a for determining the size of the transport block.
  • N a RE may be controlled.
  • the values given as the first operator to N RB sc ⁇ N sh symb may be multiplied.
  • the value given as the first operator may be a value exceeding 1.
  • the value given as the first operator may be N PRB oh.
  • N a RE N RB sc ⁇ N sh symb -N PRB DMRS -N PRB oh + X, wherein X may be a value given as the first operator ..
  • the first operator may be used in step 1b for determining the size of the transport block.
  • N RE may be controlled at least based on the first operator.
  • min (X5, N a RE) ⁇ n PRB value given as the first operator may be multiplied.
  • X5 may be multiplied by a value given as the first operator.
  • the values given as the first operator to N a RE may be multiplied.
  • the first operator may be at least used in step 2 for determining the size of the transport block.
  • N info N RE ⁇ R ⁇ Q m ⁇ v may be multiplied by a value given as the first operator.
  • the first operator may at least be used in step 3 for determining the size of the transport block.
  • N TBS 8 ⁇ C ⁇ ceil ((N a info +24) / (8 ⁇ C)) ⁇ X-24 N TBS is given, even the X is a value given as the first operator good.
  • N TBS 8 ⁇ C ⁇ ceil ((N a info +24) ⁇ X / (8 ⁇ C)) - 24 N TBS is given, even the X is a value given as the first operator good.
  • N TBS 8 ⁇ C ⁇ ceil ((N a info ⁇ X + 24) / (8 ⁇ C)) - 24 N TBS is given by, the X can be a value given as the first operator .
  • N TBS 8 ⁇ C ⁇ ceil ((N a info +24) / (8 ⁇ C)) - 24 + N TBS is given by X, the X can be a value given as the first operator.
  • the first operator may be using at least the N TBS.
  • the size of the transport block may be given by the value given as the first operator in N TBS is multiplied.
  • the first operator may be determined at least based on the sixth control information.
  • the sixth control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used for PUSCH scheduling, or at least one DCI format.
  • the fact that the terminal device 1 holds the sixth control information may mean that the terminal device 1 holds X6.
  • the sixth control information may be information indicating X6.
  • the sixth control information is information other than the information indicating X6, but may be information used to determine the X6.
  • the first operator may not be used in determining the size of the transport block included in the message 3 PUSCH.
  • the first operator may not be used in determining the size of the transport block included in the PUSCH.
  • X6 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X6 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine X6 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine X6 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X6 when the configuration of the time domain of PUSCH is the first configuration, X6 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X6 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X6 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X6 may have a second value different from the first value.
  • X6 may be given at least based on X0.
  • X6 may be determined at least based on X0.
  • the terminal device 1 may determine X6 based on at least X0.
  • the base station apparatus 3 may determine X6 based on at least X0.
  • X6 when X0 is the first value, X6 may be the second value. Further, when X0 is a third value different from the first value, X6 may be a fourth value different from the second value.
  • X6 may be given at least based on X1.
  • X6 may be determined at least based on X1.
  • the terminal device 1 may determine X6 based on at least X1.
  • the base station apparatus 3 may determine X6 based on at least X1.
  • X6 when X1 is the first value, X6 may be the second value. Further, when X1 is a third value different from the first value, X6 may be a fourth value different from the second value.
  • X6 may be given at least based on X2.
  • X6 may be determined at least based on X2.
  • the terminal device 1 may determine X6 based on at least X2.
  • the base station apparatus 3 may determine X6 based on at least X2.
  • X6 when X2 is the first value, X6 may be the second value. Further, when X2 is a third value different from the first value, X6 may be a fourth value different from the second value.
  • X6 may be given at least based on X3.
  • X6 may be determined at least based on X3.
  • the terminal device 1 may determine X6 based on at least X3.
  • the base station apparatus 3 may determine X6 based on at least X3.
  • X6 when X3 is the first value, X6 may be the second value. Further, when X3 is a third value different from the first value, X6 may be a fourth value different from the second value.
  • X6 may be given at least based on X4.
  • X6 may be determined at least based on X4.
  • the terminal device 1 may determine X6 based on at least X4.
  • the base station apparatus 3 may determine X6 based on at least X4.
  • X6 when X4 is the first value, X6 may be the second value. Further, when X4 is a third value different from the first value, X6 may be a fourth value different from the second value.
  • FIG. 11 is a diagram showing an arrangement example of DMRS for PUSCH according to one aspect of this embodiment.
  • the DMRS arrangement period for the PUSCH is one slot.
  • the horizontal axis represents the time axis and the vertical axis represents the frequency axis.
  • resource elements corresponding to OFDM symbols for two slots are shown.
  • resource elements corresponding to 1 PRB are shown.
  • the arrangement of DMRS may be given at least based on the reference point l start and the arrangement pattern.
  • the placement of the DMRS may be determined at least based on the reference point l start and the placement pattern.
  • the terminal device 1 may determine the arrangement of the DMRS based on at least the reference point l start and the arrangement pattern.
  • the base station apparatus 3 may determine the arrangement of the DMRS based on at least the reference point l start and the arrangement pattern.
  • the placement pattern may include at least a set of OFDM symbol indexes in which the DMRS is placed.
  • DMRS is arranged in the resource elements indicated by the diagonal lines and the grid lines. As shown in FIG. 11, DMRS may be arranged at regular intervals in the frequency direction.
  • the DMRS of the shaded resource element is also referred to as a front-loaded DMRS (flont-loaded DMRS).
  • the DMRS of the resource element of the grid line is also referred to as an additional DMRS (additional DMRS).
  • DMRS is arranged in the resource elements indicated by the diagonal lines and the grid lines.
  • the DMRS of the horizontal line resource element is also referred to as a front load DMRS.
  • the DMRS of the vertical line resource element is also referred to as an additional DMRS.
  • the DMRS arrangement pattern may be different for each slot or may be set for each slot.
  • the DMRS placement pattern may be determined based on the number of OFDM symbols used for PUSCH in the slot.
  • a sparse arrangement of DMRSs in the time domain, as shown in FIG. 11, is suitable in an environment where the terminal device 1 is moving at high speed, but the terminal device 1 is moving at low speed or the terminal. If the device 1 is not moving, it may not be possible to say that the resource is used efficiently. Therefore, when the PUSCH is arranged over a plurality of slots, a setting that further limits the arrangement of the DMRS is preferable.
  • the slot in which the DMRS is arranged may be given at least based on the arrangement period X2 of the DMRS.
  • the slot in which the DMRS is placed may be determined at least based on the DMRS placement period X2.
  • the terminal device 1 may determine in which slot in one of the DMRS placement cycles the DMRS is placed, at least based on the DMRS placement cycle X2.
  • the base station apparatus 3 may determine in which slot in one of the DMRS placement cycles the DMRS is placed, at least based on the DMRS placement cycle X2.
  • FIG. 12 is a diagram showing an example of a slot in which a DMRS for PUSCH according to one aspect of the present embodiment is arranged.
  • the horizontal axis shows the time axis.
  • a plurality of slots (8 slots in FIG. 12) are shown on the time axis.
  • the plurality of slots in FIG. 12 are indexed for each DMRS placement cycle, such as slot # 0 (slot # 0) to slot # 3 (slot # 3), in the order of earliest time. ..
  • the plurality of slots are arranged continuously in the time domain, but the aspect of the present invention is not limited to the plurality of slots being arranged continuously in the time domain.
  • the plurality of slots may be composed of slots capable of uplink transmission. That is, in the aspect of the present invention, the configuration may be such that a plurality of slots do not include slots capable of downlink transmission.
  • DMRS for PUSCH may be arranged in slot # 0, slot # 1, slot # 4, and slot # 5.
  • the DMRS for PUSCH does not have to be arranged in slot # 2, slot # 3, slot # 6, and slot # 7.
  • the slot in which the DMRS for PUSCH is arranged may be arranged in the first X7 slot in one of the DMRS arrangement cycles.
  • the DMRS may not be placed in a slot where it is not determined that the DMRS for the PUSCH will be placed.
  • the slot in which the DMRS for PUSCH is arranged may have the periodicity of the X7 slot in one of the DMRS arrangement cycles.
  • Z may be included in at least one of the RRC parameters, the signal of the upper layer, the uplink grant used for scheduling PUSCH, or one DCI format.
  • X7 may be determined at least based on the seventh control information.
  • the seventh control information may be determined at least based on RRC parameters, higher layer signals, uplink grants used for PUSCH scheduling, or at least one DCI format.
  • the DMRS for the message 3 PUSCH may be arranged in all the slots.
  • the fact that the terminal device 1 holds the seventh control information may mean that the terminal device 1 holds X7.
  • the seventh control information may be information indicating X7.
  • the seventh control information is information other than the information indicating X7, but may be information used to determine the X7.
  • the DMRS for PUSCH scheduled by the random access response grant may be arranged in all the slots.
  • DMRS for PUSCH may be arranged in all slots.
  • X7 may be given at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X7 may be determined at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the terminal device 1 may determine X7 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • the base station apparatus 3 may determine X7 at least based on the configuration of the PUSCH time domain scheduled by one uplink grant.
  • X7 when the configuration of the time domain of PUSCH is the first configuration, X7 may be the first value. Further, when the configuration of the time domain of PUSCH is a second configuration different from the first configuration, X7 may be a second value different from the first value. For example, when the time resource of PUSCH is the number of first slots, X7 may be the first value. Further, when the time resource of PUSCH is a second slot different from the first slot, X7 may have a second value different from the first value.
  • X7 may be given at least based on X0.
  • X7 may be determined at least based on X0.
  • the terminal device 1 may determine X7 based on at least X0.
  • the base station apparatus 3 may determine X7 based on at least X0.
  • X7 By controlling X7 based on at least X0, it may be possible to control the density of the DMRS time domain of the PUSCH based on the arrangement cycle of the transport block. For example, it is preferable that a predetermined DMRS arrangement is realized for each transport block.
  • X7 when X0 is the first value, X7 may be the second value. Further, when X0 is a third value different from the first value, X7 may be a fourth value different from the second value.
  • X7 may be given at least based on X1.
  • X7 may be determined at least based on X1.
  • the terminal device 1 may determine X7 based on at least X1.
  • the base station apparatus 3 may determine X7 based on at least X1.
  • X7 By controlling X7 based on at least X1, it may be possible to control the density of the DMRS time domain of the PUSCH based on the arrangement period of the sequence of modulation symbols. For example, it may be easier to implement modulation symbol placement and DMRS placement.
  • X7 when X1 is the first value, X7 may be the second value. Further, when X1 is a third value different from the first value, X7 may be a fourth value different from the second value.
  • X7 may be given at least based on X2.
  • X7 may be determined at least based on X2.
  • the terminal device 1 may determine X7 based on at least X2.
  • the base station apparatus 3 may determine X7 based on at least X2.
  • X7 when X2 is the first value, X7 may be the second value. Further, when X2 is a third value different from the first value, X7 may be a fourth value different from the second value.
  • X7 may be given at least based on X3.
  • X7 may be determined at least based on X3.
  • the terminal device 1 may determine X7 based on at least X3.
  • the base station apparatus 3 may determine X7 based on at least X3.
  • X7 when X3 is the first value, X7 may be the second value. Further, when X3 is a third value different from the first value, X7 may be a fourth value different from the second value.
  • X7 may be given at least based on X4.
  • X7 may be determined at least based on X4.
  • the terminal device 1 may determine X7 based on at least X4.
  • the base station apparatus 3 may determine X7 based on at least X4.
  • X7 when X4 is the first value, X7 may be the second value. Further, when X4 is a third value different from the first value, X7 may be a fourth value different from the second value.
  • FIG. 13 is a diagram showing an example of arrangement of DMRS for PUSCH according to one aspect of this embodiment.
  • the DMRS arrangement period for the PUSCH is 2 slots.
  • the horizontal axis represents the time axis and the vertical axis represents the frequency axis.
  • resource elements corresponding to OFDM symbols for two slots are shown.
  • resource elements corresponding to 1 PRB are shown.
  • the DMRS placement pattern includes OFDM symbol indexes 0, 8 and 16. That is, DMRS is placed at the 0th, 8th, and 16th OFDM symbols with reference to the DMRS reference point l start.
  • the DMRS arrangement pattern may be applied every one DMRS arrangement cycle.
  • the arrangement pattern of DMRS may be composed of a set of integer values in the range of 0 to X2 * 14 OFDM symbol-1.
  • at least one of the indexes of the OFDM symbols included in the DMRS arrangement pattern may have a value of more than 13.
  • the aspect of the present invention has taken the following measures. That is, the first aspect of the present invention is the terminal device, which includes a receiving unit that receives the DCI format used for scheduling the PUSCH and a transmitting unit that transmits the PUSCH in a plurality of slots, and the transformer.
  • the size of the port block is given based on the target code rate indicated by the DCI format, the target code rate is 1 or more, the effective code rate of the PUSCH is 1 or less, and the effective code rate. Is the value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.
  • the DCI format indicates an index
  • a target coding rate is given based on the first MCS table and the index
  • the target code rate is given based on the second MCS table and the index
  • all the target code rates included in the first MCS table are 1 or less and are included in the second MCS table.
  • At least one of the target coding rates to be obtained is 1 or more.
  • the DCI format indicates an index
  • the terminal device is one from a set of MCS tables including at least a first MCS table and a second MCS table.
  • the MCS table is selected, the target code rate is determined based on the one MCS table and the index, and all the target code rates contained in the first MCS table are 1 or less, and the second MCS At least one of the target code rates contained in the table is one or more.
  • the first MCS table is an MCS table containing at least 64QAM, and at least one of the target coding rates included in the second MCS table is 1.
  • the target coding rate is given based on the third MCS table and the index
  • the third MCS table is an MCS table containing at least 256QAM, and the first case is described above.
  • the CRC added to the DCI format is scrambled with C-RNTI, the signal waveform of the PUSCH is DFT-S-OFDM, the RRC parameter indicating the third MCS table is not set, and one.
  • the CRC added to the DCI format is scrambled by the C-RNTI, and the signal waveform of the PUSCH is the DFT-S-OFDM.
  • the CRC added to the DCI format is scrambled by the C-RNTI, and the signal waveform of the PUSCH is This is the case where the DFT-S-OFDM, the RRC parameter indicating the third MCS table is set, and the PUSCH is arranged in the one slot.
  • the second aspect of the present invention is a terminal device, which includes a receiving unit that receives the DCI format used for scheduling the PUSCH and a transmitting unit that transmits the PUSCH, and is targeted-encoded.
  • the rate is determined at least based on the value of the MCS field included in the DCI format and is included in the PUSCH based on at least the target coding rate and the first operator when the PUSCH is placed in a plurality of slots.
  • the size of the transport block is determined, and when the PUSCH is arranged in one slot, the size of the transport block contained in the PUSCH is determined based on at least the target code rate, and the transport block is described.
  • the first operator is not used to determine the size.
  • the first operator has the size of the transport block when the PUSCH is arranged in a plurality of slots, and the PUSCH is arranged in one slot. It is set to be larger than the size of the transport block when it is used.
  • the said PUSCH of the transport block regardless of whether or not the PUSCH is arranged in the plurality of slots.
  • the first operator is not used to determine the size.
  • the first operator is, N RE, N a RE, N RB sc, N sh symb, N PRB DMRS, N PRB oh, N info, N a info and, a value is multiplied by the value of some or all of the N TBS, and the first operator is greater than 1.
  • the first operator is indicated by the DCI format, and the number of the plurality of slots is determined based on at least the first operator.
  • the first operator is determined at least based on the number of the plurality of slots.
  • a third aspect of the present invention is a terminal device in which a receiving unit that receives the DCI format used for scheduling one or a plurality of PUSCHs and the one or a plurality of PUSCHs in a plurality of slots.
  • a DMRS comprising a transmitter to transmit and associated with any or all of the one or more PUSCHs is located in a first set of the plurality of slots, the first set of which.
  • the DMRS is not arranged in a slot other than the first set among the plurality of slots including from the first slot to the X slot of the plurality of slots, and the terminal device is 1) a signal of an upper layer.
  • the value of X is determined based on at least the DCI format or the number of the plurality of slots, and in the slot in which the DMRS is arranged, the pattern of the OFDM symbol in which the DMRS is arranged is the DCI format. It is given based on the PUSCH resource allocation information of the time area included in.
  • a fourth aspect of the present invention is a terminal device in which a receiving unit that receives the DCI format used for scheduling one or a plurality of PUSCHs and the one or a plurality of PUSCHs in a plurality of slots.
  • the terminal device determines the value of X based on at least 1) the signal of the upper layer, 2) the DCI format, or the number of the plurality of slots.
  • the pattern of the OFDM symbol in which the DMRS is placed is given based on the PUSCH resource allocation information of the time region included in the DCI format.
  • a fifth aspect of the present invention is a base station apparatus, in which a transmitting unit that transmits a DCI format used for scheduling PUSCH and a receiving unit that receives the PUSCH in a plurality of slots are provided.
  • the size of the transport block is given based on the target code rate indicated by the DCI format, the target code rate is 1 or more, the effective code rate of the PUSCH is 1 or less, and the above.
  • the effective coding rate is a value obtained by dividing the size of the transport block by the product of the modulation order of the PUSCH and the number of resource elements of the PUSCH.
  • the DCI format indicates an index
  • a target coding rate is given based on the first MCS table and the index
  • the target code rate is given based on the second MCS table and the index
  • all the target code rates included in the first MCS table are 1 or less and are included in the second MCS table.
  • At least one of the target coding rates to be obtained is 1 or more.
  • the DCI format indicates an index
  • the terminal device is one from a set of MCS tables including at least a first MCS table and a second MCS table.
  • the MCS table is selected, the target code rate is determined based on the one MCS table and the index, and all the target code rates contained in the first MCS table are 1 or less, and the second MCS At least one of the target code rates contained in the table is one or more.
  • the first MCS table is an MCS table containing at least 64QAM, and at least one of the target coding rates included in the second MCS table is 1.
  • the target coding rate is given based on the third MCS table and the index
  • the third MCS table is an MCS table containing at least 256QAM, and the first case is described above.
  • the CRC added to the DCI format is scrambled with C-RNTI, the signal waveform of the PUSCH is DFT-S-OFDM, the RRC parameter indicating the third MCS table is not set, and one.
  • the CRC added to the DCI format is scrambled by the C-RNTI, and the signal waveform of the PUSCH is the DFT-S-OFDM.
  • the CRC added to the DCI format is scrambled by the C-RNTI, and the signal waveform of the PUSCH is This is the case where the DFT-S-OFDM, the RRC parameter indicating the third MCS table is set, and the PUSCH is arranged in the one slot.
  • the sixth aspect of the present invention is a base station apparatus, which includes a transmitting unit that transmits a DCI format used for scheduling PUSCH and a receiving unit that receives the PUSCH, and includes a target code.
  • the conversion rate is determined at least based on the value of the MCS field included in the DCI format, and when the PUSCH is arranged in a plurality of slots, it is included in the PUSCH based on at least the target coding rate and the first operator.
  • the size of the transport block is determined, and when the PUSCH is arranged in one slot, the size of the transport block contained in the PUSCH is determined based on at least the target code rate, and the size of the transport block is determined.
  • the first operator is not used to determine the size.
  • the first operator has the size of the transport block when the PUSCH is arranged in a plurality of slots, and the PUSCH is arranged in one slot. It is set to be larger than the size of the transport block when it is used.
  • the said PUSCH of the transport block regardless of whether or not the PUSCH is arranged in the plurality of slots.
  • the first operator is not used to determine the size.
  • the first operator is, N RE, N a RE, N RB sc, N sh symb, N PRB DMRS, N PRB oh, N info, N a info and, a value is multiplied by the value of some or all of the N TBS, and the first operator is greater than 1.
  • the first operator is indicated by the DCI format, and the number of the plurality of slots is determined based on at least the first operator.
  • the first operator is determined at least based on the number of the plurality of slots.
  • a seventh aspect of the present invention is a base station apparatus, which is a transmission unit that transmits a DCI format used for scheduling one or a plurality of PUSCHs, and the one or a plurality of PUSCHs in a plurality of slots.
  • the DMRS associated with any or all of the one or more PUSCHs comprising and receiving the receiver is located in the first set of the plurality of slots, the first set of which ,
  • the DMRS is not arranged in a slot other than the first set among the plurality of slots including from the first slot to the X slot of the plurality of slots, and the terminal device is 1) an upper layer.
  • the value of X is determined at least based on the DCI format or the number of the plurality of slots, and in the slot where the DMRS is placed, the pattern of the OFDM symbol in which the DMRS is placed is the DCI. It is given based on the PUSCH resource allocation information of the time area included in the format.
  • an eighth aspect of the present invention is a base station apparatus, which is a transmission unit that transmits a DCI format used for scheduling one or a plurality of PUSCHs, and the one or a plurality of PUSCHs in a plurality of slots.
  • the terminal device determines the value of X based on at least 1) the signal of the upper layer, 2) the DCI format, or the number of the plurality of slots. Then, in the slot in which the DMRS is placed, the pattern of the OFDM symbol in which the DMRS is placed is given based on the PUSCH resource allocation information in the time region included in the DCI format.
  • the program operating in the base station device 3 and the terminal device 1 controls a CPU (Central Processing Unit) and the like so as to realize the functions of the above embodiment related to one aspect of the present invention. It may be a program (a program that makes a computer function). Then, the information handled by these devices is temporarily stored in RAM (Random Access Memory) at the time of processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and HDD (Hard Disk Drive). The CPU reads, corrects, and writes as necessary.
  • RAM Random Access Memory
  • ROMs Read Only Memory
  • HDD Hard Disk Drive
  • the terminal device 1 and a part of the base station device 3 in the above-described embodiment may be realized by a computer.
  • the 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 by the computer system and executed.
  • the "computer system” referred to here is a computer system built in the terminal device 1 or the base station device 3, and includes hardware such as an OS and peripheral devices.
  • the "computer-readable recording medium” refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system.
  • a "computer-readable recording medium” is a medium that dynamically holds a program for a short period of time, such as a communication line when a program is transmitted via a network such as the Internet or a communication line such as a telephone line.
  • a program may be held for a certain period of time, such as a volatile memory inside a computer system serving as a server or a client.
  • the above-mentioned program may be a program for realizing a part of the above-mentioned functions, and may be a program for realizing the above-mentioned functions in combination with a program already recorded in the computer system.
  • the base station device 3 in the above-described embodiment can also be realized as an aggregate (device group) composed of a plurality of devices.
  • Each of the devices constituting the device group may include a part or all of each function or each function block of the base station device 3 according to the above-described embodiment.
  • the terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.
  • the base station apparatus 3 in the above-described embodiment may be EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or NG-RAN (NextGen RAN, NR RAN). Further, the base station apparatus 3 in the above-described embodiment may have a part or all of the functions of the upper node with respect to the eNodeB and / or the gNB.
  • EUTRAN Evolved Universal Terrestrial Radio Access Network
  • NG-RAN NextGen RAN, NR RAN
  • the base station apparatus 3 in the above-described embodiment may have a part or all of the functions of the upper node with respect to the eNodeB and / or the gNB.
  • a part or all of the terminal device 1 and the base station device 3 in the above-described embodiment may be realized as an LSI which is typically an integrated circuit, or may be realized as a chipset.
  • Each functional block of the terminal device 1 and the base station device 3 may be individually chipped, or a part or all of them may be integrated into a chip.
  • the method of making an integrated circuit is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. Further, when an integrated circuit technology that replaces an LSI appears due to advances in semiconductor technology, it is also possible to use an integrated circuit based on this technology.
  • the terminal device is described as an example of the communication device, but the present invention is not limited to this, and the present invention is not limited to this, and is a stationary or non-movable electronic device installed indoors or outdoors.
  • terminal devices or communication devices such as AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other living equipment.
  • One aspect of the present invention is used, for example, in a communication system, a communication device (for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (for example, a communication chip), a program, or the like. be able to.
  • a communication device for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device
  • an integrated circuit for example, a communication chip
  • a program or the like.
  • Terminal equipment 3
  • Base station equipment 10 30
  • Wireless transmission / reception unit 11 31
  • Antenna unit 12 32
  • RF unit 13 33
  • Baseband unit 14 34
  • Upper layer Processing unit 15 35
  • Medium access control layer Processing unit 16 36
  • Radio resource control layer Processing unit 91, 92, 93, 94 Search area set 300
  • Component carrier 301 Primary cell 302, 303 Secondary cell 3000 Point 3001, 3002 Resource grid 3003, 3004 BWP 3011, 3012, 3013, 3014 Offset 3100, 3200 Common resource block set

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2021/002416 2020-01-29 2021-01-25 端末装置、基地局装置、および、通信方法 Ceased WO2021153493A1 (ja)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016518035A (ja) * 2013-03-28 2016-06-20 シャープ株式会社 復調参照信号選択のためのシステムおよび方法
WO2018229958A1 (ja) * 2017-06-15 2018-12-20 株式会社Ｎｔｔドコモ ユーザ端末及び無線通信方法

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WO2018229958A1 (ja) * 2017-06-15 2018-12-20 株式会社Ｎｔｔドコモ ユーザ端末及び無線通信方法

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