WO2022030541A1 - Dispositif terminal, dispositif de station de base et procédé de communication - Google Patents

Dispositif terminal, dispositif de station de base et procédé de communication Download PDF

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Publication number
WO2022030541A1
WO2022030541A1 PCT/JP2021/028950 JP2021028950W WO2022030541A1 WO 2022030541 A1 WO2022030541 A1 WO 2022030541A1 JP 2021028950 W JP2021028950 W JP 2021028950W WO 2022030541 A1 WO2022030541 A1 WO 2022030541A1
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WIPO (PCT)
Prior art keywords
random access
pusch
resource
pattern setting
downlink
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PCT/JP2021/028950
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English (en)
Japanese (ja)
Inventor
友樹 吉村
翔一 鈴木
智造 野上
大一郎 中嶋
渉 大内
会発 林
崇久 福井
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シャープ株式会社
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Priority to JP2022541590A priority Critical patent/JPWO2022030541A1/ja
Publication of WO2022030541A1 publication Critical patent/WO2022030541A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

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. 2020-132955 filed in Japan on August 5, 2020, the contents of which are incorporated herein by reference.
  • a third-generation partnership project ( 3GPP : 3rd) is a cellular mobile communication wireless access method and network (hereinafter also referred to as "Long Term Evolution (LTE)” or “EUTRA: Evolved Universal Terrestrial Radio Access”). It is being considered in the Generation Partnership Project).
  • LTE Long Term Evolution
  • EUTRA Evolved Universal Terrestrial Radio Access
  • the base station device is also called an eNodeB (evolved NodeB)
  • 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 device are arranged in a cell shape.
  • a single base station appliance 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 the terminal device, in which the first TDD pattern setting information, the second TDD pattern setting information, the receiving unit for receiving the random access response grant, the random access response grant, and the random access response grant.
  • a transmitter that transmits a PUSCH scheduled by Whether or not the PUSCH is transmitted is determined based on the first TDD pattern information, and if the time area resource allocation field included in the random access response grant indicates any of the columns in the second table, whether or not the PUSCH is transmitted is determined. It is determined based on the second TDD pattern information.
  • the second aspect of the present invention is a base station apparatus, which comprises a transmission unit for transmitting a first TDD pattern setting information, a second TDD pattern setting information, a random access response grant, and the random access.
  • a receiver that receives a PUSCH scheduled by a response grant, and if the time area resource allocation field included in the random access response grant indicates any of the columns in the first table, the PUSCH is transmitted. Whether or not it is determined based on the first TDD pattern information, and if the time area resource allocation field included in the random access response grant indicates any of the columns of the second table, whether or not the PUSCH is transmitted. Is determined based on the second TDD pattern information.
  • a third aspect of the present invention is a communication method used for a terminal device, which comprises a step of receiving a first TDD pattern setting information, a second TDD pattern setting information, a random access response grant, and the like.
  • a step of transmitting a PUSCH scheduled by the random access response grant; Whether or not it is done is determined based on the first TDD pattern information, and if the time area resource allocation field included in the random access response grant indicates any of the columns in the second table, the PUSCH is transmitted. Whether or not it is determined based on the second TDD pattern information.
  • a fourth aspect of the present invention is a communication method used for a base station apparatus, which comprises a step of transmitting a first TDD pattern setting information, a second TDD pattern setting information, and a random access response grant. , A step of receiving a PUSCH scheduled by the random access response grant, and if the time region resource allocation field contained in the random access response grant indicates any of the columns in the first table, the PUSCH. Whether or not to be transmitted is determined based on the first TDD pattern information, and if the time area resource allocation field included in the random access response grant indicates any of the columns in the second table, the PUSCH is transmitted. Whether or not to do so is determined based on the second TDD pattern information.
  • the terminal device can efficiently communicate.
  • the base station device can efficiently communicate.
  • This 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 embodiment of the present embodiment.
  • It is a figure which shows an example of the composition method of the resource grid which concerns on one aspect of this Embodiment.
  • It is a schematic block diagram which shows the structural example of the base station apparatus 3 which concerns on one aspect of this Embodiment.
  • It is a schematic block diagram which shows the structural example of the terminal apparatus 1 which concerns on one aspect of this Embodiment.
  • 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 within the range not less than the real number D.
  • the 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 a plurality of 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 subframe, ⁇ symb 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 parameter is also referred to as an SCS specific carrier.
  • One resource grid corresponds to one SCS-specific carrier.
  • One component carrier may include one or more SCS-specific carriers.
  • the SCS-specific 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 embodiment of the present embodiment.
  • N slot symb 14
  • N frame 20
  • ⁇ slot 40
  • N slot symb 12
  • N frame 20
  • a time unit (time unit) T c may be used to express 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 with 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 an integer value in the range of 0 to N frame, ⁇ slot -1 in the radio frame.
  • One slot may contain consecutive N slot symb OFDM symbols.
  • N slot symb 14.
  • FIG. 3 is a diagram showing an example of a method of configuring a resource grid according to an embodiment of the present embodiment.
  • the horizontal axis of FIG. 3 indicates a frequency domain.
  • FIG. 3 shows a configuration example of a resource grid having a subcarrier spacing ⁇ 1 in the component carrier 300 and a configuration example of a resource grid having a subcarrier spacing ⁇ 2 in the component carrier. In this way, one or more subcarrier intervals may be set for a component carrier.
  • 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. 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. 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
  • the vertical axis is the subcarrier index k sc .
  • the resource grid 3001 contains N size, ⁇ grid1, x N RB sc subcarriers, and N subframe, ⁇ 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 one OFDM symbol in one resource block.
  • Common resource blocks for a setting ⁇ of a subcarrier interval are indexed in ascending order from 0 in the frequency domain in a common resource block set.
  • a common resource block at index 0 for a given subcarrier interval setting ⁇ contains (or collides with) points 3000.
  • Physical resource blocks for a setting ⁇ of a subcarrier interval are indexed from 0 in the frequency domain in ascending order 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 sizes, ⁇ 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 a 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 inferred 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 on 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). ).
  • Large scale characteristics may include at least the long interval characteristics of the channel.
  • Large-scale characteristics include delay spread, Doppler spread, Doppler shift, average gain, 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. May be the same.
  • the fact that the first antenna port and the second antenna port are QCL with respect to the beam parameters means that the transmission 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 if 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 communication using a plurality of aggregated component carriers. Further, carrier aggregation may be to perform communication using a plurality of aggregated downlink component carriers. Further, 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 embodiment 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 radio 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 receiving unit 30b may receive the PRACH.
  • the wireless receiving unit 30b may receive the PUCCH and demodulate it.
  • the radio receiving unit 30b may receive the PUSCH and demodulate it.
  • the wireless receiving unit 30b may receive the PUCCH DMRS.
  • the wireless receiving unit 30b may receive the PUSCH DMRS.
  • the wireless receiving unit 30b may receive UL PTRS.
  • the wireless receiving unit 30b may receive the SRS.
  • the upper layer processing unit 34 outputs the downlink data (transport block) to the wireless transmission / reception unit 30 (or the 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 the 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 (conversion to a time continuous signal) of the downlink data, and transmits the physical signal to the terminal device 1. ..
  • the wireless transmission / reception unit 30 (or the 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 the 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 the 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 (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 a 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
  • 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 to 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 carries out an initial connection establishment procedure (initial connection establishment procedure) or a connection re-establishment procedure (connection re-establishment procedure) by the terminal device 1.
  • PSCell is a serving cell included in SCG (Secondary Cell Group).
  • 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 serving cell (or uplink component carrier).
  • 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.
  • the PUCCH and PUSCH may be transmitted on the active uplink BWP.
  • the terminal device 1 may transmit the PUCCH and the PUSCH in the active uplink BWP.
  • the active downlink BWP and the active uplink BWP are also referred to as an active BWP.
  • the 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 on 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 is for deactivating one active downlink BWP and activating any of the inactive downlink BWPs 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 a 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 a 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 embodiment 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 baseband signal of PUCCH.
  • the wireless 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 receiving unit 10b may receive the PDCCH and demodulate it.
  • the wireless receiving unit 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 receiving unit 10b may receive the CSI-RS.
  • the wireless receiving unit 10b may receive DL PTRS.
  • the upper layer processing unit 14 outputs the uplink data (transport block) to the wireless transmission / reception unit 10 (or the 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 (or the wireless transmission unit 10a) 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 the 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 in 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 a 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 obtains a signal in the frequency domain. Extract.
  • CP Cyclic Prefix
  • FFT fast Fourier transform
  • the baseband unit 13 generates an OFDM symbol by performing an inverse fast Fourier transform (IFFT) on the uplink data, adds a CP to the generated OFDM symbol, and generates a baseband digital signal. , Converts a baseband digital signal to an analog signal. The baseband unit 13 outputs the converted analog signal to the RF unit 12.
  • IFFT inverse fast Fourier transform
  • the RF unit 12 removes an extra frequency component 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.
  • An 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 a part 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 to 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 referred to as 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 decryption has not been successfully completed (has not been decoded).
  • the HARQ-ACK information may include a HARQ-ACK codebook containing one or more HARQ-ACK bits.
  • Correspondence between the HARQ-ACK information and the transport block may mean that the HARQ-ACK information corresponds to the PDSCH used for transmission of the transport block.
  • HARQ-ACK may indicate ACK or NACK corresponding to one CBG (Code Block Group) included in the transport block.
  • CBG Code Block Group
  • the scheduling request may be at least used to request a PUSCH (or UL-SCH) resource for the 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 higher layer.
  • the positive SR may be transmitted when the upper layer instructs to transmit the 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 a PUSCH (or UL-SCH) resource for initial transmission.
  • a negative SR may indicate that the scheduling request is not triggered by the higher layer. Negative SRs may be sent if the higher layer does not instruct them to send the scheduling request.
  • 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 at least for the 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 the PUCCH format.
  • the PUSCH may be used to transmit transport blocks and / or uplink control information.
  • the PUSCH may be used to transmit the transport block corresponding to the UL-SCH and / or the uplink control information.
  • the PUSCH may be used to convey transport blocks and / or uplink control information.
  • the PUSCH may be used to transmit the transport block corresponding to the UL-SCH and / or the 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 the 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 send 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.
  • Cv corresponds to the cyclic shift of the PRACH series.
  • 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 PRACH series.
  • the terminal device 1 may transmit PRACH.
  • the base station apparatus 3 may receive the
  • the random access preamble is specified (determined, given) at least based on the cyclic shift Cv of the PRACH sequence and the sequence index u for the PRACH sequence.
  • Each of the 64 random access preambles identified may be indexed.
  • 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 embodiment of the present embodiment, at least a part 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.
  • Transmitting the PUSCH may be transmitting the PUSCH and the 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 device 3 may transmit a downlink physical channel.
  • the terminal device 1 may receive the downlink physical channel.
  • at least a part or all of the following downlink physical channels may be used.
  • PBCH Physical Broadcast Channel
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • the PBCH may be used to transmit a MIB (MIB: Master Information Block) and / or physical layer control information.
  • the PBCH may be transmitted to transmit MIB and / or physical layer control information (deliver, transmission, convey).
  • 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.
  • the 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 be at least 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 arranged (mapped) in the PDCCH.
  • the terminal device 1 may receive the PDCCH in which the downlink control information is arranged.
  • the base station apparatus 3 may transmit 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 of the DCI format.
  • DCI format 0_1, DCI format 0_1, DCI format 1_1, and DCI format 1_1 are DCI formats containing 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 the DCI format 1_0 and the DCI format 1_1.
  • the DCI format 0_0 is at least used for scheduling the PUSCH of a cell (or placed in a cell).
  • the 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 contained in DCI format 0_0 may indicate 0 (or it may indicate that DCI format 0_0 is an uplink DCI format).
  • the frequency domain resource allocation field contained in the DCI format 0_0 may at least be used to indicate the frequency resource allocation for the 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 the 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 transport block of the PUSCH (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.
  • the 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.
  • the DCI format 0_0 does not have to include the carrier indicator field. That is, the uplink component carrier in which the PUSCH scheduled by the DCI format 0_0 is arranged may be the same as the uplink component carrier in which the PDCCH including the DCI format 0_0 is arranged.
  • the 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.
  • the DCI format 0_1 is at least used for scheduling the PUSCH (located in a cell) of a cell.
  • the DCI format 0_1 comprises 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 contained in DCI format 0_1 may at least be used to indicate the frequency resource allocation 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 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 in which the PUSCH is located is the same as the uplink component carrier in which the PDCCH containing DCI format 0_1 used for scheduling 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 contained 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) of a cell.
  • the 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 contained in the DCI format 1_0 may at least be used to indicate the frequency resource allocation for the PDSCH.
  • the time domain resource allocation field contained in the DCI format 1_0 may at least be used to indicate the time resource allocation for the 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 for 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.
  • the DCI format 1_0 does not have to include the carrier indicator field. That is, the downlink component carrier in which the PDSCH scheduled by the DCI format 1_0 is arranged may be the same as the downlink component carrier in which the PDCCH including the DCI format 1_0 is arranged.
  • the DCI format 1_0 does not have to include the BWP field. That is, the downlink BWP in which the PDSCH scheduled by the DCI format 1_0 is arranged may be the same as the downlink BWP in which the PDCCH including the DCI format 1_0 is arranged.
  • the DCI format 1-11 is at least used for scheduling PDSCH in a cell (or placed in a cell).
  • the 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_1 may indicate 1 (or may indicate that the DCI format 1-11 is a downlink DCI format).
  • the frequency domain resource allocation field contained in the DCI format 1-11 may at least be used to indicate the frequency resource allocation for the PDSCH.
  • the time domain resource allocation field contained in the DCI format 1-11 may at least be used to indicate the allocation of time resources for the PDSCH.
  • the MCS field contained in DCI format 1-11 may be at least used to indicate a modulation scheme for PDSCH and / or part or all of the target code rate.
  • the PDSCH_HARQ 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 in 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 located may be the same as the downlink BWP in which the PDCCH containing the DCI format 1-11, used for scheduling the PDSCH, is located.
  • 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 1-11 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 1-11, which is used for scheduling the PDSCH, is located. May be good.
  • the PDSCH arranged in the 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 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 the transport block.
  • the PDSCH may be used to transmit the transport block corresponding to the DL-SCH.
  • the PDSCH may be used to transmit the transport block.
  • 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 in the PDSCH.
  • the base station apparatus 3 may transmit a 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 device 3.
  • the downlink physical signal may be transmitted by the terminal device 1.
  • at least a part or all of the following downlink physical signals may be used.
  • 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 is the time axis (OFDM symbol index l sym ), and the vertical axis is the frequency domain.
  • the shaded blocks indicate a set of resource elements for PSS.
  • the grid block shows 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.
  • the 1st to 56th subcarriers of the 1st OFDM symbol may be set to zero.
  • the 184th to 240th subcarriers of the first OFDM symbol may be set to zero.
  • the 49th to 56th subcarriers of the 3rd 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 subcarriers which are 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 subcarriers which are 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 subcarriers which are 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 DMRS for PSS, SSS, PBCH, and 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.
  • Sending a PDSCH may be sending a PDSCH and a 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 PDSCH symbol is transmitted and a set of resource elements to which a DMRS symbol for the PDSCH is transmitted are included in the same precoding resource group (PRG). 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. It was
  • the PDCCH may be estimated from the DMRS for the PDCCH. That is, the propagation path of the PDCCH may be estimated from the DMRS for the PDCCH. If the same precoder is applied (assumed to be applied) in a set of resource elements to which a PDCCH symbol is transmitted and in a set of resource elements to which a DMRS symbol for the PDCCH is transmitted. If applicable), the PDCCH to 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 a codeword, 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 may be used to transmit a common RRC message in a plurality of terminal devices 1.
  • CCCH may be used, for example, for a terminal device 1 that is not RRC-connected.
  • the DCCH (Dedicated Control CHannel) 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 the 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 in the logical channel may be mapped to DL-SCH or UL-SCH in 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 the MIB, system information, the message corresponding to CCCH, the message corresponding to DCCH, and the parameters included in MAC CE.
  • the parameters included in the MAC CE are transmitted by the MAC CE (Control Element) command.
  • the procedure performed by the terminal device 1 includes at least a part or all of the following 5A to 5C.
  • 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.
  • a physical cell ID physical cell identity
  • the PSS sequence is given at least based on the physical cell ID.
  • the sequence of SSS 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 (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 2 is also referred to as a random access response.
  • Message 3 is a procedure for transmitting a PUSCH scheduled by a random access response grant included in the 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 by the DCI format 1_0.
  • the PUSCH scheduled based on the random access response grant is either message 3 PUSCH or PUSCH.
  • Message 3 PUSCH includes a collision resolution identifier (contention resolution identifier) MAC CE.
  • Conflict resolution ID MAC CE includes a conflict resolution ID.
  • Message 3 PUSCH retransmission is scheduled by DCI format 0_0 with CRC scrambled based on TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).
  • 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.
  • 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 PDCCH may be detected in the control resource set, the PDCCH candidate may be detected in the control resource set, or the DCI format may be detected in the control resource set. 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 0PDCCH common search area set (Type0PDCCH common search space set), a type 0aPDCCH common search area set (Type0a PDCCH common search space set), and a type 1 PDCCH common search area set (Type1 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 0PDCCH common search area set, a type 0aPDCCH common search area set, a type 1PDCCH common search area set, a type 2PDCCH common search area set, and a type 3PDCCH common search area set.
  • the USS set is also referred to as a UE individual PDCCH search area set.
  • a search area set is related (included, corresponding) 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 for a search region set may correspond to the resources of that control resource set starting with the OFDM symbol at the beginning 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 block indicated by the grid lines indicates the search area set 91
  • the block indicated by the upward-sloping diagonal line indicates the search area set 92
  • the block indicated by the upward-sloping diagonal line indicates the search area set 93, which is indicated by a horizontal line.
  • 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 0PDCCH common search area set may at least be used for a 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 0aPDCCH common search area set may be at least 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 is a CRC sequence scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) and / or a CRC sequence scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier). It may be at least used 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 area set may be used for a DCI format with a CRC sequence 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 a CRC sequence 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 the DCI format with the CRC sequence 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. If 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 configured scheduling.
  • a plurality of SS / PBCH block candidates may be arranged in the half radio frame.
  • the plurality of arranged SS / PBCH block candidates may be indexed in ascending order on the time axis. For example, when NSSB SS / PBCH block candidates are arranged in a half radio frame, the range of candidate index values may be 0 to NSSB -1.
  • the frequency resources of NSSB SS / PBCH block candidates in the half radio frame may be the same.
  • An SS / PBCH block index may be added to each of the NSSB SS / PBCH block candidates in the half radio frame.
  • the SS / PBCH block index may be equal to the candidate index.
  • the SS / PBCH block index may be determined by the remainder of the candidate index divided by the value Q.
  • the value Q may be indicated by the parameters of the upper layer.
  • the base station device 3 may notify the terminal device 1 of the bitmap information.
  • the terminal device 1 may determine the relationship between the SS / PBCH block index and the PRACH opportunity (association between SS / PBCH block index and PRACH occurrences) based on the bitmap information.
  • Bitmap information may be included in the parameters of the upper layer.
  • bitmap information may be used to indicate a set of SS / PBCH blocks transmitted by the base station apparatus 3. Based on the bitmap information, the terminal device 1 may recognize the pool of SS / PBCH block indexes.
  • the pool of SS / PBCH block indexes is also referred to as the index pool.
  • the bitmap information is 8 bits
  • the first bit corresponds to SS / PBCH block index 0
  • the second bit corresponds to SS / PBCH block index 1
  • the Xth bit corresponds to SS / PBCH block index. It may correspond to X-1.
  • the terminal device 1 may include the SS / PBCH block index X-1 in the index pool.
  • the terminal device 1 does not have to include the SS / PBCH block index X-1 in the index pool.
  • the number of SS / PBCH block indexes contained in the index pool is also referred to as NSSB TX .
  • the procedure for determining the relationship between the SS / PBCH block index and the PRACH opportunity may be a procedure for mapping the SS / PBCH block index for each of a plurality of PRACH opportunities in the association period.
  • the association period may be either 10 ms, 20 ms 40 ms 80 ms, or 160 ms.
  • FIG. 9 is a diagram showing an example of a procedure for determining the relationship between the SS / PBCH block index and the PRACH opportunity according to one aspect of the present embodiment.
  • 9000 indicates an association period.
  • each of 9001 to 9004 represents one PRACH opportunity during the association period 9000.
  • 9005 indicates an index pool.
  • SS / PBCH block indexes # 2, # 5, and # 6 are included in the index pool 9005.
  • SS / PBCH block index # 2 is associated with PRACH opportunities 9001 and 9004
  • SS / PBCH block index # 5 is associated with PRACH opportunity 9002
  • SS / PBCH block index # 6 is associated with PRACH opportunity.
  • the SS / PBCH block index contained in the index pool may be cyclically associated with the PRACH opportunity.
  • the ordering of PRACH opportunities may be ordered in ascending order in the frequency domain, and may be ordered by a method such as ordering in the frequency direction and then on the time axis (Frequency-first time-second).
  • N is a parameter indicating the number of SS / PBCH blocks associated with one PRACH opportunity.
  • R is a parameter indicating the number of preambles for CBRA (Contention-Based Random-Access) assigned to one SS / PBCH block index among the random access preambles of one PRACH opportunity.
  • N total is a parameter indicating the sum of the number of preambles for CBRA and the number of preambles for CFRA (Contention-Free Random-Access) in one random access preamble of PRACH opportunity.
  • FIG. 9 is an example when N is 1.
  • FIG. 10 is a diagram showing an example of a procedure for determining the relationship between the SS / PBCH block index and the PRACH opportunity according to one aspect of the present embodiment.
  • FIG. 10 is an example when N is 2.
  • SS / PBCH block indexes # 2 and # 5 are associated with PRACH opportunity 9001
  • SS / PBCH block indexes # 6 and # 2 are associated with PRACH opportunity 9002
  • # 6 is associated with PRACH opportunity 9003
  • SS / PBCH block indexes # 2 and # 5 are associated with PRACH opportunity 9004.
  • the terminal device 1 may cyclically associate the SS / PBCH block index with one or more PRACH opportunities during the association period.
  • the cyclical association method may be given on the basis of some or all of the following steps 1 through 4.
  • Step 1 may include an operation of arranging the SS / PBCH block indexes included in the index pool 9005 in ascending order.
  • an internal index IV may be added to the SS / PBCH block indexes arranged in ascending order.
  • Step 2 may include an operation of selecting the first SS / PBCH block index from the index pool 9005. Further, when N is larger than 1, the operation of selecting from the first SS / PBCH block index to the Nth may be included. Here, the SS / PBCH block index is selected cyclically. Here, the head SS / PBCH block index is the SS / PBCH block index next to the SS / PBCH block index selected as the Nth in the operation of the previous step 2. Further, when the operation of step 2 this time is the first time, the first SS / PBCH block index is the smallest SS / PBCH block index included in the index pool 9005.
  • the selection of the SS / PBCH block index is performed cyclically. For example, if the SS / PBCH block index selected as the Nth in the operation of the previous step 2 is the SS / PBCH block index # 6, the SS / PBCH block index selected as the Nth is next to the SS / PBCH block index.
  • the SS / PBCH block index is the SS / PBCH block index # 2. If the SS / PBCH block index selected as the Nth in the operation of the previous step 2 is the SS / PBCH block index # 5, the SS / PBCH block index selected as the Nth is next to the SS / PBCH block index.
  • the SS / PBCH block index is SS / PBCH block index # 6. Further, in the selection of the SS / PBCH block index this time, the SS / PBCH block index # 6 and N-1 SS / PBCH block indexes from the SS / PBCH block index # 2 are selected.
  • in is an internal index that is incremented after the operation of step 2 is executed. The initial value of in is 0.
  • Step 3 includes the operation of assigning the N SS / PBCH block indexes selected in step 2 to one PRACH opportunity. Then select the next PRACH opportunity for that one PRACH opportunity.
  • the ordering of PRACH opportunities is based on the frequency first time second rule.
  • Step 4 includes an operation of determining the end of the procedure. If the one PRACH opportunity in step 3 is the last PRACH opportunity in the association period, the procedure is terminated. If the next PRACH opportunity of the one PRACH opportunity in step 3 is selected, the process returns to step 2.
  • N total / N random access preambles in one PRACH opportunity may be assigned to one SS / PBCH block index.
  • N total / N random access preambles from index 0 to index N total / N-1 are assigned to SS / PBCH block # 2. You may. Also, of the 64 random access preambles included in the PRACH opportunity 9001, N total / N random access preambles from index N total / N to index 2 * N total / N-1 are SS / PBCH block # 5. May be assigned to.
  • N total / N random access preambles from index 0 to index N total / N-1 are assigned to SS / PBCH block # 6. You may. Also, of the 64 random access preambles included in the PRACH opportunity 9002, N total / N random access preambles from index N total / N to index 2 * N total / N-1 are SS / PBCH block # 2. May be assigned to.
  • N total / N random access preambles from index 0 to index N total / N-1 are assigned to SS / PBCH block # 5. You may. Also, of the 64 random access preambles included in the PRACH opportunity 9003, N total / N random access preambles from index N total / N to index 2 * N total / N-1 are SS / PBCH block # 6. May be assigned to.
  • N total / N random access preambles from index 0 to index N total / N-1 are assigned to SS / PBCH block # 2. You may. Also, of the 64 random access preambles included in the PRACH opportunity 9004, N total / N random access preambles from index N total / N to index 2 * N total / N-1 are SS / PBCH block # 5. May be assigned to.
  • the allocation of random access preambles to the SS / PBCH block index may be determined based on at least one or both of N and N total .
  • R random access preambles may be random access preambles for the CBRA.
  • the terminal device 1 may determine a random access preamble for the CBRA based on at least R.
  • the terminal device 1 has an index (n-1) * N total / N out of the N total / N random access preambles assigned to a certain SS / PBCH block index in one PRACH opportunity.
  • Random access preambles up to * N total / N + R-1 may be determined to be random access preambles for CBRA.
  • n corresponds to the SS / PBCH block index selected as the nth of the N SS / PBCH block indexes selected for one PRACH opportunity. Further, the value of n is given in the range of 1 to N.
  • the terminal device 1 may select one of the random access preambles for CBRA among the random access preambles associated with a certain SS / PBCH block index.
  • the SS / PBCH block index may be indicated by the parameters of the upper layer.
  • the SS / PBCH block index may be indicated by the DCI format.
  • the certain SS / PBCH block index is not notified by the radio signal transmitted from the base station device 3
  • one or more SS / PBCH blocks detected by the terminal device 1 are based on at least the reception strength. You may choose one.
  • an extended function of the PUSCH may be added. For example, by repeating the transmission of the PUSCH by the terminal device 1, the transmission power per modulation symbol transmitted by the PUSCH can be increased, and the performance is expected to be improved.
  • the base station device 3 When the PUSCH is scheduled in the DCI format with the CRC sequence scrambled by C-RNTI for the terminal device 1 connected to the RRC, the base station device 3 has an extension function to the PUSCH for the terminal device 1. May be notified whether or not to add.
  • the base station apparatus 3 may decide whether or not to add an extended function to the PUSCH based on the CSI reported by the terminal apparatus 1, the reception quality information based on the radio section measurement, and the like.
  • the reception quality information may be RSRP (Reference Signal Received Power).
  • the report from the terminal device 1 is not performed, or the base station device 3 cannot identify the terminal device 1, so that the terminal device 1 is used as a random access response grant. It may be difficult for the base station apparatus 3 to determine whether or not to add an extended function to the PUSCH scheduled based on the basis.
  • the terminal device 1 may determine the SS / PBCH block index of the SS / PBCH block having the largest RSRP among the received one or a plurality of SS / PBCH blocks. Further, the terminal device 1 may determine whether or not the largest RSRP satisfies a predetermined condition.
  • the predetermined condition may be a condition based on a comparison between the highest RSRP and a predetermined threshold value. Further, the predetermined condition may be a condition based on whether or not the highest RSRP is larger than a predetermined threshold value. Further, the predetermined condition may be a condition based on whether or not the highest RSRP is smaller than a predetermined threshold value.
  • the terminal device 1 selects either a first set of random access preambles for the CBRA or a second set of random access preambles for the CBRA, depending on whether or not the predetermined conditions are met. You may.
  • the first set of random access preambles for the CBRA may be the set selected if the predetermined conditions are not met. Further, the set of the second random access preamble for CBRA may be a set selected when the predetermined condition is satisfied. If the determination based on the predetermined condition is not made, the first set of random access preambles for CBRA may be selected.
  • the first random access preamble set corresponds to the first random access procedure. That is, when the execution of the first random access procedure is notified from the upper layer of the terminal device 1, one random access preamble may be selected from the set of the first random access preambles. The selected random access preamble may be transmitted at the selected PRACH opportunity.
  • the first random access procedure may be a four-step random access procedure.
  • the second random access preamble set corresponds to the second random access procedure. That is, when the execution of the second random access procedure is notified from the upper layer of the terminal device 1, one random access preamble may be selected from the set of the second random access preambles. The selected random access preamble may be transmitted at the selected PRACH opportunity.
  • the second random access procedure is a four-step random access and may be different from the first random access procedure.
  • the second random access procedure may be a method in which an extended function is added to the first random access procedure.
  • the first set of random access preambles for the CBRA may be determined based on the first RACH configuration information contained in the RRC message.
  • the first RACH setting information is configured to include at least a part or all of the following R1 to R7.
  • the PRACH setting index is an index used at least for determining a part or all of the index of the subframe in which the PRACH opportunity is arranged and the time arrangement of the PRACH in the slot (such as the first OFDM symbol index).
  • PRACH opportunities can be set in the frequency domain as many as the number of PRACH opportunities that are frequency-multiplexed.
  • the random access response window indicates a period (window) in which the terminal device 1 transmits the random access preamble and then monitors the random access response corresponding to the random access preamble.
  • the sum of the random access preambles indicates N total .
  • the number of SS / PBCH blocks associated with one PRACH opportunity indicates N.
  • the number of preambles for CBRA indicates R.
  • the message 3 transmission method indicates whether or not modified recording is used as the transmission method used for the PUSCH of message 3.
  • the set of the second random access preamble for the CBRA may be determined based on the second RACH setting information contained in the RRC message.
  • the second RACH setting information is configured to include at least a part or all of the following R1 to R7.
  • the PRACH opportunity set for the first random access procedure and the PRACH opportunity set for the second random access procedure may share the same resource.
  • Such a setting is also referred to as a first and second shared setting.
  • different resources may be used for the PRACH opportunity set for the first random access procedure and at least a part of the PRACH opportunity set for the second random access procedure.
  • Such settings are also referred to as first and second individual settings.
  • the second RACH setting information may include at least the number R x of preambles for the CBRA.
  • the terminal device 1 has an index (n-1) * N total / N + R to an index (n-1) out of N total / N random access preambles assigned to a certain SS / PBCH block index in one PRACH opportunity. * N random access preambles up to total / N + R + R x -1 may be determined to be a set of second random access preambles for the CBRA.
  • the terminal device 1 has an index (n-1) * N out of N total / N random access preambles assigned to a certain SS / PBCH block index in one PRACH opportunity. Random access preambles from total / N to index (n-1) * N total / N + R-1 may be determined to be the second set of random access preambles for CBRA.
  • the terminal device 1 sets the first random access preamble for the CBRA, the second random access preamble for the CBRA, or the third random access preamble for the CBRA, based on condition 1. You may choose either.
  • Condition 1 may be given based on at least two thresholds associated with RSRP. For example, if the largest RSRP is between threshold A and threshold B, terminal device 1 may select the first set of random access preambles for CBRA. Also, if the largest RSRP is less than the threshold B, the terminal device 1 may select a second set of random access preambles for the CBRA. Also, if the largest RSRP is greater than the threshold A, the terminal device 1 may select a third set of random access preambles for the CBRA.
  • the third random access preamble set corresponds to the third random access procedure. That is, when the execution of the third random access procedure is notified from the upper layer of the terminal device 1, one random access preamble may be selected from the set of the third random access preamble. The selected random access preamble may be transmitted at the selected PRACH opportunity.
  • the third random access procedure may be a two-step random access procedure.
  • the terminal device 1 transmits the message A to the base station device 3.
  • Message A is composed of PRACH and PUSCH.
  • the base station apparatus 3 that has received the message A transmits the message B to the terminal apparatus 1.
  • Message B is configured to include PDSCH.
  • the set of the third random access preamble for the CBRA may be determined based on the third RACH setting information contained in the RRC message.
  • the third RACH setting information is configured to include at least a part or all of the following R1 to R7.
  • the PRACH opportunity set for the first random access procedure and the PRACH opportunity set for the third random access procedure may share the same resource.
  • Such a setting is also referred to as a first and third shared setting.
  • different resources may be used for the PRACH opportunity set for the first random access procedure and at least a part of the PRACH opportunity set for the third random access procedure.
  • Such settings are also referred to as first and third individual settings.
  • the third RACH setting information may include at least the number Rz of preambles for the CBRA.
  • the terminal device 1 has an index (n-1) * N total / N + R to an index (n-1) out of N total / N random access preambles assigned to a certain SS / PBCH block index in one PRACH opportunity. * N random access preambles up to total / N + R + R z -1 may be determined to be a set of third random access preambles for the CBRA.
  • the PRACH opportunity set for the first random access procedure For example, the PRACH opportunity set for the first random access procedure, the PRACH opportunity set for the second random access procedure, and the PRACH opportunity set for the third random access procedure.
  • the same resource may be shared. Since the terminal device 1 is not always able to recognize the third random access procedure, the method of determining the set of the second random access preamble may be changed.
  • the second RACH setting information may include at least the number R x of preambles for the CBRA.
  • the terminal device 1 has an index (n-1) * N total / N + S x to an index (n-1) out of N total / N random access preambles assigned to a certain SS / PBCH block index in one PRACH opportunity. ) * N random access preambles up to total / N + S x + R x -1 may be determined to be the second set of random access preambles for CBRA.
  • S x may be indicated by a parameter included in the second RACH setting information.
  • the second RACH setting information may include at least the number R x of preambles for the CBRA.
  • the terminal device 1 has a random access preamble from index n * S y to index n * S y + R x -1 among N total / N random access preambles assigned to a certain SS / PBCH block index in one PRACH opportunity.
  • the access preamble may be determined to be a second set of random access preambles for the CBRA.
  • Sy may be indicated by a parameter included in the second RACH setting information.
  • the second RACH setting information may include at least the number RY of preambles for the CBRA.
  • the terminal device 1 has an index (n-1) * RY + N total to an index n * RY + N among the N total / N random access preambles assigned to a certain SS / PBCH block index in one PRACH opportunity. Random access preambles up to total -1 may be determined to be a second set of random access preambles for CBRA.
  • the terminal device 1 has an index (n-1) * N out of N total / N random access preambles assigned to a certain SS / PBCH block index in one PRACH opportunity. Random access preambles from total / N to index (n-1) * N total / N + R-1 may be determined to be a set of third random access preambles for CBRA.
  • the terminal device 1 has a set of first random access preambles for CBRA, a set of second random access preambles for CBRA, a set of third random access preambles for CBRA, or a set of third random access preambles, based on condition 2. , You may choose any of the fourth set of random access preambles for CBRA.
  • the fourth random access preamble set corresponds to the fourth random access procedure. That is, when the execution of the fourth random access procedure is notified from the upper layer of the terminal device 1, one random access preamble may be selected from the set of the fourth random access preambles. The selected random access preamble may be transmitted at the selected PRACH opportunity.
  • the fourth random access procedure may be a method in which an extended function is added to the third random access procedure.
  • Condition 2 may be given at least based on two thresholds associated with RSRP.
  • the threshold value C may be used to switch between 4-step random access and 2-step random access.
  • the threshold value D may be used to switch whether or not the extended function is used in the random access procedure. For example, if the largest RSRP is greater than the threshold C, two-step random access may be selected. Further, when the largest RSRP is equal to the threshold value C, 2-step random access may be selected or 4-step random access may be selected. Further, if the largest RSRP is smaller than the threshold value C, 4-step random access may be selected.
  • a third random access procedure may be selected. Further, if the largest RSRP is equal to the threshold value D, a third random access procedure or a fourth random access procedure may be selected. Also, if the largest RSRP is less than the threshold D, a fourth random access procedure may be selected.
  • the first random access procedure may be selected. Further, if the largest RSRP is equal to the threshold value D, the first random access procedure or the second random access procedure may be selected. Also, if the largest RSRP is less than the threshold D, a second random access procedure may be selected.
  • the condition 2 may be given at least based on the three thresholds associated with RSRP.
  • the threshold value C may be used to switch between 4-step random access and 2-step random access.
  • the threshold value D1 may be used to switch whether or not the extended function is used in the 4-step random access procedure.
  • the threshold value D2 may be used to switch whether or not the extended function is used in the two-step random access procedure. For example, if the largest RSRP is greater than the threshold C, two-step random access may be selected. Further, when the largest RSRP is equal to the threshold value C, 2-step random access may be selected or 4-step random access may be selected. Further, if the largest RSRP is smaller than the threshold value C, 4-step random access may be selected.
  • the third random access procedure may be selected. Further, if the largest RSRP is equal to the threshold value D2, a third random access procedure or a fourth random access procedure may be selected. Also, if the largest RSRP is less than the threshold D2, a fourth random access procedure may be selected.
  • the first random access procedure may be selected. Further, if the largest RSRP is equal to the threshold value D1, the first random access procedure or the second random access procedure may be selected. Also, if the largest RSRP is less than the threshold D1, a second random access procedure may be selected.
  • the DCI format used for scheduling the PDSCH including the random access response may be monitored for a predetermined period.
  • the predetermined period may be determined by the value indicated by the random access response window included in the first RACH setting information.
  • the CRC sequence added to the DCI format is scrambled with RA-RNTI.
  • the PDSCH scheduled by the DCI format may be tried to be decoded.
  • the PDSCH may include one or more random access responses. If the terminal device 1 finds a random access response containing information that matches the index of the random access preamble transmitted in the first random access procedure, the terminal device 1 is included in the found random access response. PUSCH scheduled by 1 random access response grant may be transmitted.
  • the first random access response grant may include at least a time domain resource allocation field.
  • the time domain resource allocation field points to any of the columns included in the first TDRA (Time Domain Resource Assignment) table.
  • the first TDRA table may contain one or more columns.
  • the information corresponding to one column may include at least some or all of K2, SLIV (Start and Length Indicator Value), and DMRS mapping type.
  • K2 may be used to indicate the slot in which the PUSCH is transmitted.
  • the random access response is transmitted in n-K2.
  • the SLIV may be used to indicate the OFDM symbol at the beginning of the PUSCH in the slot and the length of the PUSCH.
  • the DMRS mapping type may be used to indicate the type of DMRS arrangement for the PUSCH.
  • the first TDRA table does not have to use PUSCH repetition.
  • the DCI format used for scheduling the PDSCH including the random access response may be monitored for a predetermined period.
  • the predetermined period may be determined by the value indicated by the random access response window included in the second RACH setting information. If the second RACH setting information does not include the information indicating the random access response window, it may be determined by the value indicated by the random access response window included in the first RACH setting information.
  • the CRC sequence added to the DCI format is scrambled with RA-RNTI.
  • the PDSCH scheduled by the DCI format may be tried to be decoded.
  • the PDSCH may include one or more random access responses. If the terminal device 1 finds a random access response containing information that matches the index of the random access preamble transmitted in the first random access procedure, the terminal device 1 is included in the found random access response.
  • the PUSCH scheduled by the random access response grant of 2 may be transmitted.
  • the second random access response grant may include at least a time domain resource allocation field.
  • the time domain resource allocation field points to any of the columns contained in the second TDRA table.
  • the second TDRA table may contain one or more columns.
  • the information corresponding to one column may include at least some or all of K2, SLIV (Start and Length Indicator Value), and DMRS mapping type.
  • K2 may be used to indicate the slot in which the PUSCH is transmitted.
  • the random access response is transmitted in n-K2.
  • the SLIV may be used to indicate the OFDM symbol at the beginning of the PUSCH in the slot and the length of the PUSCH.
  • the DMRS mapping type may be used to indicate the type of DMRS arrangement for the PUSCH.
  • the second TDRA table may be different from the first TDRA table.
  • the second TDRA table may contain information used to determine the number of PUSCH iterations.
  • the second TDRA table may contain information indicating the number of times the PUSCH is repeated.
  • K2 indicates the first slot among the plurality of slots to which the PUSCH is transmitted. May be used for.
  • FIG. 11 is a diagram showing an example of the first PUSCH repeat type according to one embodiment of the present embodiment.
  • the horizontal axis indicates the time domain.
  • grid lines on the time domain indicate slot boundaries.
  • the time domain corresponding to the shaded block indicates that the time domain is a downlink.
  • the fact that the time domain is a downlink indicates that the OFDM symbol included in the time domain is a downlink symbol.
  • the time domain corresponding to the white-painted block indicates that the time domain is a flexible region.
  • the fact that the time domain is a flexible region indicates that the OFDM symbol included in the time domain is a flexible symbol.
  • the time domain corresponding to the block of the grid line indicates that the time domain is an uplink.
  • the fact that the time domain is an uplink indicates that the OFDM symbol included in the time domain is an uplink symbol.
  • the PDSCH11000 including the random access response is transmitted in the downlink area. Further, the PUSCH scheduled by the random access response grant included in the random access response is assigned to PUSCH11001 to PUSCH11004.
  • the random access response grant shows that K2 is 2 and the number of repetitions of PUSCH is 4.
  • the PUSCH may be repeatedly transmitted in a plurality of slots. Also, each of the repeatedly transmitted PUSCH resources may start from the same OFDM symbol in the slot. Also, each of the repeated PUSCH resources may be configured with the same number of OFDM symbols.
  • whether or not PUSCH is transmitted may be determined based on a TDD (Time Division Duplex) pattern. For example, in a slot, transmission may not be performed on the PUSCH resource based on the fact that part or all of the set of OFDM symbols constituting the PUSCH resource is set to the downlink symbol by the TDD pattern. .. Further, in a certain slot, transmission may be performed in the resource of the PUSCH based on the fact that none of the OFDM symbols of the set of OFDM symbols constituting the resource of the PUSCH by the TDD pattern is set as the downlink symbol.
  • TDD Time Division Duplex
  • TDD pattern is a general term for the first TDD pattern setting, the second TDD pattern setting, and the third TDD pattern setting.
  • the first TDD pattern setting may be provided by the first TDD pattern setting information included in the RRC message.
  • the first TDD pattern setting information may include a part or all of T1 to T6.
  • the reference subcarrier spacing uref indicates the subcarrier spacing used to determine the configuration of the slots T2 to T6.
  • the cycle of the pattern determined by a part or all of T3 to T6 is determined.
  • the pattern may be repeated based on the period of the pattern.
  • the number of downlink slots d slot indicates that the OFDM symbol included in the first d slot of the S slots is a downlink symbol.
  • the number of uplink slots u slot indicates that the OFDM symbol included in the rear us slot of the S slots is an uplink symbol.
  • the number of downlink symbols d sym indicates that the d sym OFDM symbols after d slot from the beginning of the S slot are downlink symbols.
  • the number of uplink symbols u sim indicates that the us ym OFDM symbols from the rear of the S slot to the front of the d slot are uplink symbols.
  • d slot * N slot symb + d sym OFDM symbols from the beginning may be downlink symbols.
  • u slot * N slot symb + us ym OFDM symbols from the rear may be uplink symbols.
  • the OFDM symbols that are not downlink symbols and are not uplink symbols- (d slot * N slot symb + d sym + u slot * N slot symb + u sym ) may be flexible symbols. ..
  • the first TDD pattern setting may include only the flexible area.
  • the first TDD pattern setting information may include information for setting the pattern 2.
  • the information for setting the pattern 2 includes at least a part or all of T3 to T6.
  • the pattern may be configured to periodically repeat the pattern in which the pattern and the pattern 2 are combined.
  • the second pattern setting may be provided by the second pattern setting information included in the RRC message.
  • the second pattern setting information includes one or more setting information for each slot.
  • Each of the slot-specific setting information may include information indicating the slot index and slot setting information.
  • the information indicating the slot index included in the setting information for each slot may specify the slot to which the setting based on the slot setting information included in the setting information for each slot is applied.
  • the information indicating the slot index may indicate the slot index in the S slot.
  • the slot setting information may indicate any of the first setting, the second setting, and the third setting.
  • the first setting may be a setting indicating that the OFDM symbol included in the slot specified by the information indicating the slot index is a downlink symbol.
  • the second setting may be a setting indicating that the OFDM symbol included in the slot specified by the information indicating the slot index is an uplink symbol.
  • the third setting may indicate the number of downlink symbols in the slot d sym2 and the number of uplink symbols in the slot u sym2 . In the third setting, the first two dsym OFDM symbols of the slot specified by the information indicating the slot index may be downlink symbols.
  • the two usym OFDM symbols behind the slot identified by the information indicating the slot index may be uplink symbols.
  • the OFDM symbol that is neither the downlink symbol nor the uplink symbol may be a flexible symbol.
  • the OFDM symbol set as the downlink symbol in the first TDD pattern setting does not have to be set as the uplink symbol in the second TDD pattern setting. Further, the OFDM symbol set as the uplink symbol in the first TDD pattern setting may not be set as the downlink symbol in the second TDD pattern setting.
  • a second TDD pattern setting is provided for the PUSCH scheduled by the first random access response grant. It may be determined whether or not transmission is performed in the resource of PUSCH in each slot by referring to.
  • transmission is performed in the resource. It does not have to be.
  • transmission may be performed in the resource.
  • the first TDD pattern setting is made for the PUSCH scheduled by the second random access response grant. It may be determined whether or not transmission is performed in the resource of PUSCH in each slot by referring to.
  • transmission is performed in the resource. It does not have to be.
  • transmission may be performed in the resource.
  • the first PUSCH repeat type is applied to the PUSCH where the first TDD pattern setting and the second TDD pattern setting are provided for the terminal device 1 and are scheduled by the second random access response grant. If so, it may be determined whether or not transmission is performed in the PUSCH resource in each slot with reference to the first TDD pattern setting. For example, if part or all of the set of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to at least the downlink by the first TDD pattern setting, even if transmission is not performed in the resource. good. Further, if none of the sets of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to the downlink by the first TDD pattern setting, transmission may be performed in the resource.
  • the first PUSCH repeat type is applied to the PUSCH where the first TDD pattern setting and the second TDD pattern setting are provided for the terminal device 1 and are scheduled by the second random access response grant. If not, it may be determined whether or not transmission is performed in the PUSCH resource in each slot with reference to the second TDD pattern setting. For example, if part or all of the set of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to at least the downlink by the second TDD pattern setting, even if transmission is not performed in the resource. good. Further, if none of the sets of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to the downlink by the second TDD pattern setting, transmission may be performed in the resource.
  • the first PUSCH repeat type is applied to the PUSCH where the first TDD pattern setting and the second TDD pattern setting are provided for the terminal device 1 and are scheduled by the second random access response grant.
  • it may be determined whether or not transmission is performed in the resource of the PUSCH in each slot by referring to the first TDD pattern setting. .. For example, if part or all of the set of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to at least the downlink by the first TDD pattern setting, even if transmission is not performed in the resource. good. Further, if none of the sets of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to the downlink by the first TDD pattern setting, transmission may be performed in the resource.
  • the first PUSCH repeat type is applied to the PUSCH where the first TDD pattern setting and the second TDD pattern setting are provided for the terminal device 1 and are scheduled by the second random access response grant.
  • the PUSCH does not report the C-RNTI to the base station apparatus 3
  • it may be determined whether or not transmission is performed in the resources of the PUSCH in each slot by referring to the second TDD pattern setting. ..
  • the set of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to at least the downlink by the second TDD pattern setting, even if transmission is not performed in the resource. good.
  • transmission may be performed in the resource.
  • FIG. 12 is a diagram showing an example of the second PUSCH repeat type according to one embodiment of the present embodiment.
  • the horizontal axis indicates the time domain.
  • grid lines on the time domain indicate slot boundaries.
  • the time domain corresponding to the shaded block indicates that the time domain is a downlink.
  • the time domain corresponding to the white-painted block indicates that the time domain is a flexible region.
  • the time domain corresponding to the block of the grid line indicates that the time domain is an uplink.
  • the PDSCH12000 including the random access response is transmitted in the downlink area. Further, the PUSCH scheduled by the random access response grant included in the random access response is assigned to PUSCH12001 to PUSCH12008.
  • the random access response grant shows that K2 is 2 and the number of repetitions of PUSCH is 8.
  • the resources of the PUSCH may be continuously arranged. Each of the PUSCH resources shown in FIG. 12 is also referred to as a Nominal repetition.
  • the PUSCH of nominal repetition as shown in FIG. 12 may set the resource of actual repetition based on the TDD pattern setting.
  • the terminal device 1 may transmit the PUSCH using the resource of the actual repetition set based on the TDD pattern setting.
  • FIG. 13 is a diagram showing an example of setting an actual repeating resource according to one embodiment of the present embodiment. Since the set of OFDM symbols constituting PUSCH12001 in FIG. 12 does not include the downlink symbol, the resource of the nominal repetition of PUSCH12001 is set as the resource of the actual repetition. PUSCH12002, PUSCH12006, PUSCH12007, and PUSCH12008 are the same as PUSCH12001. That is, the resource may be set as an actual repeat resource based on the fact that the set of OFDM symbols that make up the nominal repeat resource does not include the downlink symbol.
  • PUSCH12003 since the set of OFDM symbols constituting PUSCH12003 includes only the downlink symbol, the resource of the nominal repetition of PUSCH1203 does not have to be configured as the resource of the actual repetition.
  • PUSCH12004 is the same as PUSCH12003. That is, based on the fact that the set of OFDM symbols that make up a nominal repeat resource contains only downlink symbols, that resource does not have to be set as an actual repeat resource.
  • the resource in the flexible region among the resources of PUSCH12005 is set as the resource for actual repetition. That is, based on the fact that the set of OFDM symbols constituting the resource of the nominal repetition includes the downlink symbol and the symbol other than the downlink symbol, the resource excluding the OFDM symbol of the downlink symbol may be set as the actual repetition.
  • Symbols other than the downlink symbol are a general term for flexible symbols and uplink symbols.
  • a second TDD pattern setting is provided for the PUSCH scheduled by the first random access response grant.
  • the resource may not be set as a resource for the actual iteration. ..
  • the set of OFDM symbols constituting the certain nominal repetition includes a downlink symbol and a symbol other than the downlink symbol by the second TDD pattern setting, a resource composed of the symbols other than the downlink symbol. May be set as a resource for actual repetition.
  • the first TDD pattern setting is for the PUSCH scheduled by the second random access response grant.
  • the resource may not be set as a resource for the actual iteration. ..
  • the set of OFDM symbols constituting the certain nominal repetition includes a downlink symbol and a symbol other than the downlink symbol by the first TDD pattern setting, a resource composed of the symbols other than the downlink symbol. May be set as a resource for actual repetition.
  • a second PUSCH repeat type is applied to a PUSCH where a first TDD pattern setting and a second TDD pattern setting are provided for terminal device 1 and are scheduled by a second random access response grant. If so, the resources for actual iterations may be determined with reference to the first TDD pattern setting for the PUSCH scheduled by the second random access response grant.
  • the resource may not be set as a resource for the actual iteration. ..
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • a second PUSCH repeat type is applied to a PUSCH where a first TDD pattern setting and a second TDD pattern setting are provided for terminal device 1 and are scheduled by a second random access response grant. If not, you may refer to the second TDD pattern setting for the PUSCH scheduled by the second random access response grant to determine the resources for the actual iteration.
  • the second TDD pattern setting sets all of the sets of OFDM symbols that make up a nominal iteration to at least the downlink, the resource may not be set as a resource for the actual iteration. ..
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • a second PUSCH repeat type is applied to a PUSCH where a first TDD pattern setting and a second TDD pattern setting are provided for terminal device 1 and are scheduled by a second random access response grant.
  • a first TDD pattern setting and a second TDD pattern setting are provided for terminal device 1 and are scheduled by a second random access response grant.
  • the resource of the actual repetition May be determined.
  • the resource may not be set as a resource for the actual iteration. ..
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • a second PUSCH repeat type is applied to a PUSCH where a first TDD pattern setting and a second TDD pattern setting are provided for terminal device 1 and are scheduled by a second random access response grant. And if the PUSCH does not report the C-RNTI to the base station device 3, then for the PUSCH scheduled by the second random access response grant, refer to the second TDD pattern setting and the actual iterative resource. May be determined.
  • the second TDD pattern setting sets all of the sets of OFDM symbols that make up a nominal iteration to at least the downlink, the resource may not be set as a resource for the actual iteration. ..
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • the second is the PUSCH transmitted together with the PRACH in the message A of the third random access procedure.
  • the TDD pattern setting of it may be determined whether or not transmission is performed in the resource of PUSCH in each slot.
  • transmission is performed in the resource. It does not have to be.
  • transmission may be performed in the resource.
  • the first is the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • the TDD pattern setting of it may be determined whether or not transmission is performed in the resource of PUSCH in each slot.
  • transmission is performed in the resource. It does not have to be.
  • transmission may be performed in the resource.
  • the terminal device 1 is provided with the first TDD pattern setting and the second TDD pattern setting, and the first PUSCH with respect to the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • the repeat type it may be determined whether or not transmission is performed in the resources of the PUSCH in each slot with reference to the first TDD pattern setting. For example, if part or all of the set of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to at least the downlink by the first TDD pattern setting, even if transmission is not performed in the resource. good. Further, if none of the sets of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to the downlink by the first TDD pattern setting, transmission may be performed in the resource.
  • the terminal device 1 is provided with the first TDD pattern setting and the second TDD pattern setting, and the first PUSCH with respect to the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • a second TDD pattern setting may be referred to to determine if transmissions are made in the PUSCH resources in each slot. For example, if part or all of the set of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to at least the downlink by the second TDD pattern setting, even if transmission is not performed in the resource. good. Further, if none of the sets of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to the downlink by the second TDD pattern setting, transmission may be performed in the resource.
  • the terminal device 1 is provided with the first TDD pattern setting and the second TDD pattern setting, and the first PUSCH with respect to the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • the first TDD pattern setting is referred to to determine whether transmission is performed in the PUSCH resource in each slot. May be done. For example, if part or all of the set of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to at least the downlink by the first TDD pattern setting, even if transmission is not performed in the resource. good. Further, if none of the sets of OFDM symbols constituting the resource of the PUSCH in a certain slot is set to the downlink by the first TDD pattern setting, transmission may be performed in the resource.
  • the terminal device 1 is provided with the first TDD pattern setting and the second TDD pattern setting, and the first PUSCH with respect to the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • the repeat type is applied and the PUSCH does not report the C-RNTI to the base station device 3
  • the second is the PUSCH transmitted together with the PRACH in the message A of the third random access procedure.
  • You may decide the resource of the actual repetition by referring to the TDD pattern setting of.
  • the TDD pattern setting sets all of the sets of OFDM symbols that make up a nominal iteration to at least the downlink
  • the resource may not be set as a resource for the actual iteration. ..
  • the set of OFDM symbols constituting the certain nominal repetition includes a downlink symbol and a symbol other than the downlink symbol by the second TDD pattern setting
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • the first is the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • You may decide the resource of the actual repetition by referring to the TDD pattern setting of.
  • the resource may not be set as a resource for the actual iteration. ..
  • the set of OFDM symbols constituting the certain nominal repetition includes a downlink symbol and a symbol other than the downlink symbol by the first TDD pattern setting, a resource composed of the symbols other than the downlink symbol. May be set as a resource for actual repetition.
  • the terminal device 1 is provided with the first TDD pattern setting and the second TDD pattern setting, and the second PUSCH with respect to the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • the resource of the actual repeat may be determined with reference to the first TDD pattern setting for the PUSCH.
  • the resource may not be set as a resource for the actual iteration. ..
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • the terminal device 1 is provided with the first TDD pattern setting and the second TDD pattern setting, and the second PUSCH with respect to the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • the resource may not be set as a resource for the actual iteration. ..
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • the terminal device 1 is provided with the first TDD pattern setting and the second TDD pattern setting, and the second PUSCH with respect to the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • the repeat type is applied and the PUSCH reports C-RNTI to the base station device 3
  • the actual repeat resource may be determined for the PUSCH with reference to the first TDD pattern setting. ..
  • the resource may not be set as a resource for the actual iteration. ..
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • the terminal device 1 is provided with the first TDD pattern setting and the second TDD pattern setting, and the second PUSCH with respect to the PUSCH transmitted together with the PRACH in the message A of the fourth random access procedure.
  • the actual repeat resource may be determined for the PUSCH with reference to the second TDD pattern setting. ..
  • the second TDD pattern setting sets all of the sets of OFDM symbols that make up a nominal iteration to at least the downlink, the resource may not be set as a resource for the actual iteration. ..
  • a resource composed of the symbols other than the downlink symbol May be set as a resource for actual repetition.
  • the first aspect of the present invention is the terminal device, in which the first TDD pattern setting information, the second TDD pattern setting information, the receiving unit for receiving the random access response grant, the random access response grant, and the random access response grant.
  • a transmitter that transmits a PUSCH scheduled by Whether or not the PUSCH is transmitted is determined based on the first TDD pattern information, and if the time area resource allocation field included in the random access response grant indicates any of the columns in the second table, whether or not the PUSCH is transmitted is determined. It is determined based on the second TDD pattern information.
  • the second aspect of the present invention is a base station apparatus, which comprises a transmission unit for transmitting a first TDD pattern setting information, a second TDD pattern setting information, a random access response grant, and the above.
  • a receiver that receives a PUSCH scheduled by a random access response grant; Whether or not it is done is determined based on the first TDD pattern information, and if the time area resource allocation field included in the random access response grant indicates any of the columns in the second table, the PUSCH is transmitted. Whether or not it is determined based on the second TDD pattern information.
  • the third aspect of the present invention is the terminal device, in which the first RACH setting information used in the first random access procedure and the second RACH setting used in the second random access procedure.
  • the first RACH setting information includes a receiving unit that receives information and a transmitting unit that selects one random access preamble and transmits it by PRACH, and the first RACH setting information is the first random access preamble assigned in one PRACH opportunity.
  • the contention-based random access preamble index used in the first random access procedure for the nth SS / PBCH block for a PRACH opportunity contains at least information indicating the first number R of the access preamble.
  • (N-1) * N total / N to index (n-1) * N total / N + R-1 is selected, and the second RACH setting information is per SS / PBCH block in the one PRACH opportunity.
  • the first SS / PBCH block for the nth SS / PBCH block for a PRACH opportunity including at least information indicating a second number R x of the contention-based random access preamble to be assigned and a first value S x .
  • the index of the contention-based random access preamble used in step 2 is selected from (n-1) * N total / N + S x to index (n-1) * N total / N + S x + R x -1. Will be done.
  • the fourth aspect of the present invention is the base station apparatus, the first RACH setting information used in the first random access procedure, and the second RACH used in the second random access procedure.
  • the first RACH setting information includes a transmitter for transmitting setting information and a reception for receiving one random access preamble by PRACH, and the first RACH setting information is a first number N of random access preambles assigned in one PRACH opportunity.
  • Information indicating total information indicating the first number N of SS / PBCH blocks allocated in the one PRACH opportunity, and contention-based random access preambles allocated per SS / PBCH block in the one PRACH opportunity.
  • the contention-based random access preamble index used in the first random access procedure is (n-) for the nth SS / PBCH block for a PRACH opportunity that contains at least information indicating a first number R. 1) Selected from * N total / N to index (n-1) * N total / N + R-1, the second RACH setting information is assigned per SS / PBCH block in the one PRACH opportunity.
  • the second random for the nth SS / PBCH block for the PRACH opportunity including at least information indicating a second number R x of a tension-based random access preamble and a first value S x .
  • the index of the contention-based random access preamble used in the access procedure is selected from (n-1) * N total / N + S x to index (n-1) * N total / N + S x + R x -1.
  • the program operating on the base station device 3 and the terminal device 1 controls a CPU (Central Processing Unit) or the like so as to realize the functions of the above embodiment according 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 (RandomAccessMemory) at the time of processing, and then stored in various ROMs such as Flash ROM (ReadOnlyMemory) and HDD (HardDiskDrive). Read, modify, and write are performed by the CPU as needed.
  • RAM RandomAccessMemory
  • ROMs ReadOnlyMemory
  • HDD HardDiskDrive
  • the terminal device 1 and a part of the base station device 3 in the above-described embodiment may be realized by a computer.
  • a program for realizing this control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by a computer system and executed.
  • the "computer system” 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, and 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 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 for realizing a part of the above-mentioned functions, and may be further realized 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 the 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 in, for example, 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 device 3 Base station device 10, 30 Wireless transmission / reception section 10a, 30a Wireless transmission section 10aa Channel coding / scrambling / modulation section 10ab Layer mapping section 10ac Recording section 10ad Time signal generation section 10ae Spatial filter unit 10af Antenna unit 10b, 30b Wireless reception unit 10ba Channel decoding / descramble / Demolization unit 10bb Layer degradation unit 10bb Channel demographic unit 10bd Frequency signal generation unit 10be Spatial filter unit 10bf Antenna unit 11, 31 Antenna unit 12, 32 RF unit 13, 33 Baseband unit 14, 34 Upper layer processing unit 15, 35 Media access control layer processing unit 16, 36 Wireless resource control layer processing unit 91, 92, 93, 94 Search area set 300 Component carrier 301 Primary cell 302, 303 Secondary Cell 1600 Spatial Filter Set 1700 Codebook Set 3000 Points 3001, 3002 Resource Grid 3003, 3004 BWP 3011, 3012, 3013, 3014 Offset 3100, 3

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un dispositif terminal qui comprend : une unité de réception qui reçoit des premières informations de réglage de motif TDD, des secondes informations de réglage de motif TDD, une première autorisation de réponse d'accès aléatoire et une seconde autorisation de réponse d'accès aléatoire ; et une unité de transmission qui transmet un premier PUSCH programmé par la première autorisation de réponse d'accès aléatoire et un second PUSCH programmé par la seconde autorisation de réponse d'accès aléatoire ; savoir si le premier PUSCH doit ou non être transmis est déterminé sur la base des premières informations de réglage de motif TDD et savoir si le second PUSCH doit ou non être transmis est déterminé sur la base des secondes informations de réglage de motif TDD.
PCT/JP2021/028950 2020-08-05 2021-08-04 Dispositif terminal, dispositif de station de base et procédé de communication WO2022030541A1 (fr)

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Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ERICSSON: "Remaining details on RACH procedure", 3GPP DRAFT; R1-1720941_REMAINING DETAILS ON RACH PROCEDURE, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, Nevada, US; 20171227 - 20171201, 18 November 2017 (2017-11-18), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , pages 1 - 24, XP051370315 *
SAMSUNG: "Uplink signal and channel design for NR-U", 3GPP DRAFT; R1-1912448, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, USA; 20191118 - 20191122, 8 November 2019 (2019-11-08), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051820038 *
ZTE: "Grant-based PUSCH Enhancements for URLLC", 3GPP DRAFT; R1-1901769 GRANT-BASED PUSCH ENHANCEMENTS FOR URLLC, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Athens, Greece; 20190225 - 20190301, 16 February 2019 (2019-02-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051599463 *

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