WO2020031699A1 - 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
WO2020031699A1
WO2020031699A1 PCT/JP2019/029041 JP2019029041W WO2020031699A1 WO 2020031699 A1 WO2020031699 A1 WO 2020031699A1 JP 2019029041 W JP2019029041 W JP 2019029041W WO 2020031699 A1 WO2020031699 A1 WO 2020031699A1
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resource
upper layer
index
parameter
pdcch
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English (en)
Japanese (ja)
Inventor
友樹 吉村
翔一 鈴木
智造 野上
渉 大内
李　泰雨
会発 林
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Sharp Corp
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Sharp Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to a terminal device, a base station device, and a communication method.
  • This application claims priority based on Japanese Patent Application No. 2018-148468 for which it applied to Japan on August 7, 2018, and uses the content here.
  • LTE Long Term Evolution
  • EUTRA Evolved Universal Terrestrial Radio Access is a third generation partnership project (3GPP: 3 rd Generation Partnership Project).
  • 3GPP 3 rd Generation Partnership Project
  • a base station device is also called an eNodeB (evolved NodeB), and a 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 device may manage a plurality of serving cells.
  • IMT International Mobile Telecommunication
  • NR New Radio
  • eMBB enhanced Mobile Broadband
  • mMTC massive Machine Type Communication
  • URLLC Ultra Reliable and Low Latency Communication
  • One embodiment of the present invention provides a terminal device that performs efficient communication, a communication method used for the terminal device, a base station device that performs efficient communication, and a communication method used for the base station device.
  • a first aspect of the present invention is a terminal device, comprising: a receiving unit that monitors a PDCCH in a control resource set, wherein a resource block configuring the control resource set includes a parameter of a first upper layer.
  • the index of the resource block corresponding to the lowest frequency domain among the set of resource blocks corresponding to the bit indicated by the parameter of the first upper layer is provided based on the subcarrier interval related to the control resource set. It is provided based on a parameter of the second upper layer indicating the reference point of the resource grid for the setting ⁇ .
  • a second aspect of the present invention is a base station apparatus, comprising: a transmission unit that transmits a PDCCH in a control resource set, wherein a resource block configuring the control resource set includes a first upper layer parameter And the index of the resource block corresponding to the lowest frequency domain among the set of resource blocks corresponding to the bit indicated by the parameter of the first upper layer is a subcarrier interval related to the control resource set. Is set based on a parameter of a second upper layer indicating a reference point of the resource grid with respect to the setting ⁇ .
  • a third aspect of the present invention is a communication method used for a terminal device, comprising a step of monitoring a PDCCH in a control resource set, wherein the resource block configuring the control resource set is a first higher-order resource block.
  • An index of a resource block corresponding to a bit indicated by the parameter of the first upper layer and corresponding to the lowest frequency domain is provided based on a parameter of a layer, and is associated with the control resource set. It is provided based on a parameter of the second upper layer indicating the reference point of the resource grid for the setting ⁇ of the subcarrier interval.
  • a fourth aspect of the present invention is a communication method used for a base station apparatus, comprising a step of transmitting a PDCCH in a control resource set, wherein a resource block constituting the control resource set is a first resource block.
  • the index of the resource block corresponding to the lowest frequency region among the set of resource blocks corresponding to the bit indicated by the parameter of the first upper layer, which is provided based on the parameter of the upper layer, is associated with the control resource set. Is given based on a parameter of the second upper layer indicating the reference point of the resource grid for the setting ⁇ of the subcarrier interval to be performed.
  • the terminal device can communicate efficiently. Further, the base station device can communicate efficiently.
  • FIG. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment.
  • 7 is an example showing a relationship among N slot symb , subcarrier interval setting ⁇ , and CP setting according to an aspect of the present embodiment.
  • FIG. 9 is a schematic diagram illustrating an example of a resource grid in a subframe according to an aspect of the present embodiment.
  • FIG. 11 is a diagram illustrating an example of a relationship between a PUCCH format and a length N PUCCH symb of the PUCCH format according to an aspect of the present embodiment.
  • FIG. 1 is a schematic block diagram illustrating a configuration of a terminal device 1 according to one aspect of the present embodiment.
  • FIG. 2 is a schematic block diagram illustrating a configuration of a base station device 3 according to one aspect of the present embodiment.
  • FIG. 3 is a diagram illustrating an example of communication between the base station device 3 and the terminal device 1 according to one aspect of the present embodiment.
  • FIG. 13 is a diagram illustrating an example of DMRS mapping related to the PDCCH 8001 according to an aspect of the present embodiment.
  • FIG. 5 is a diagram illustrating an example of a resource allocation method for a control resource set according to an aspect of the embodiment.
  • FIG. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment.
  • the wireless communication system includes terminal devices 1A to 1C and a base station device 3.
  • the terminal devices 1A to 1C are also referred to as terminal devices 1.
  • the base station apparatus 3 may include one or both of an MCG (Master Cell Group) and an SCG (Secondary Cell Group).
  • the MCG is a group of serving cells that includes at least PCell (Primary @ Cell).
  • the SCG is a group of serving cells including at least a PSCell (Primary @ Secondary @ Cell).
  • the PCell may be a serving cell provided based on an initial connection.
  • the MCG may include one or more SCells (Secondary @ Cells).
  • the SCG may include one or more SCells.
  • the MCG may be configured with a serving cell on EUTRA.
  • the SCG may be configured with a serving cell based on the next-generation standard (NR: ⁇ New ⁇ Radio).
  • At least OFDM Orthogonal Frequency Division Multiplex
  • An OFDM symbol is a unit of the time domain of OFDM.
  • An OFDM symbol includes at least one or more subcarriers.
  • the OFDM symbol is converted to a time-continuous signal (time-continuous signal) in 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 provided by applying Transform @ precoding to CP-OFDM.
  • the subcarrier spacing configuration ⁇ may be set to 0, 1, 2, 3, 4, and / or 5.
  • the setting ⁇ of the subcarrier interval may be given by an upper layer parameter.
  • a time unit (time unit) Tc is used to represent the length of the time domain.
  • ⁇ f max may be the maximum value of the subcarrier interval supported in the wireless communication system according to an aspect of the present embodiment.
  • ⁇ f ref may be 15 kHz.
  • N f, ref may be 2048.
  • the constant ⁇ may be a value indicating the relationship between the reference subcarrier interval and Tc .
  • the constant ⁇ may be used for subframe length.
  • the number of slots included in the subframe may be given based at least on the constant ⁇ .
  • ⁇ f ref is a reference subcarrier interval
  • N f, ref is a value corresponding to the reference subcarrier interval.
  • Transmission of a signal in the downlink and / or transmission of a signal in the uplink is configured by a 10 ms frame.
  • the frame is configured to include ten subframes.
  • the length of the subframe is 1 ms.
  • the length of the frame may be given regardless of the subcarrier interval ⁇ f. That is, the frame setting may be given regardless of ⁇ .
  • the length of the subframe may be given regardless of the subcarrier interval ⁇ f. That is, the setting of the subframe may be given regardless of ⁇ .
  • the number and index of slots included in a subframe may be given.
  • the slot number n mu s is from 0 to N subframe in a subframe may be given in ascending order in the range of mu slot -1.
  • the number and index of the slots included in the frame may be given.
  • the slot number n mu s, f may be given from 0 in the frame N frame, in ascending order in the range of mu slot -1.
  • Consecutive N slot symb OFDM symbols may be included in one slot.
  • the N slot symb may be provided based at least on part or all of a CP (Cyclic Prefix) setting.
  • the CP setting may be given based at least on upper layer parameters.
  • the CP configuration may be provided based at least on dedicated RRC signaling.
  • the slot number is also called a slot index.
  • FIG. 2 is an example illustrating a relationship between N slot symb , a setting ⁇ of a subcarrier interval, and a CP setting according to an aspect of the present embodiment.
  • N slot symb 14
  • N frame 40
  • N slot symb 12
  • Antenna ports are defined by the fact that the channel on which a symbol is transmitted at one antenna port can be estimated from the channel on which other symbols are transmitted at the same antenna port. If the large-scale property of a channel on which a symbol is transmitted at one antenna port can be estimated from the channel on which the symbol is transmitted at another antenna port, the two antenna ports are QCL (Quasi-Co-Located). ).
  • the large-scale characteristics may include at least the long-range characteristics of the channel. Large-scale characteristics include delay spread (Dlay spread), Doppler spread (Doppler spread), Doppler shift (Doppler shift), average gain (average gain), average delay (average delay), and beam parameters (spatial Rx parameters). At least some or all of them may be included.
  • the receiving beam assumed by the receiving side for the first antenna port and the receiving beam assumed by the receiving side for the second antenna port May be the same. That the first antenna port and the second antenna port are QCL with respect to the beam parameter means that the transmission beam assumed by the receiving side for the first antenna port and the transmission beam assumed by the receiving side for the second antenna port May be the same.
  • the terminal device 1 assumes that the two antenna ports are QCL if the large-scale characteristics of the channel on which the symbol is transmitted on one antenna port can be estimated from the channel on which the symbol is transmitted on another antenna port May be done.
  • the fact that the two antenna ports are QCLs may mean that the two antenna ports are QCLs.
  • a resource grid defined by N size, ⁇ grid, x N RB sc subcarriers and N subframe, ⁇ symb OFDM symbols is provided for setting a subcarrier interval and setting a carrier.
  • N size, ⁇ grid, x may indicate the number of resource blocks provided for setting ⁇ of the subcarrier interval for carrier x.
  • N size, ⁇ grid, x may indicate the bandwidth of the carrier.
  • N size, ⁇ grid, and x may correspond to the value of the upper layer parameter CarrierBandwidth.
  • Carrier x may indicate either a downlink carrier or an uplink carrier. That is, x may be either “DL” or “UL”.
  • N RB sc may indicate the number of subcarriers included in one resource block.
  • N RB sc may be 12.
  • At least one resource grid may be provided for each antenna port p and / or for each setting ⁇ of the subcarrier spacing and / or for each setting of the transmission direction.
  • the transmission direction includes at least a downlink (DL: DownLink) and an uplink (UL: UpLink).
  • DL: DownLink downlink
  • UL: UpLink uplink
  • a set of parameters including at least part or all of the antenna port p, the setting ⁇ of the subcarrier interval, and the setting of the transmission direction is also referred to as a first wireless parameter set. That is, one resource grid may be provided for each first wireless parameter set.
  • a carrier included in a serving cell is referred to as a downlink carrier (or a downlink component carrier).
  • a carrier included in a serving cell is referred to as an uplink carrier (uplink component carrier).
  • the downlink component carrier and the uplink component carrier are collectively referred to as a component carrier (or a carrier).
  • the type of the serving cell may be any of PCell, PSCell, and SCell.
  • the PCell may be a serving cell identified based on at least the cell ID obtained from the SS / PBCH in the initial connection.
  • the SCell may be a serving cell used in carrier aggregation.
  • the SCell may be a serving cell provided at least based on dedicated RRC signaling.
  • Each element in the resource grid provided for each first radio parameter set is called a resource element.
  • the resource element is specified by an index k sc in the frequency domain and an index l sym in the time domain.
  • the resource element is identified by a frequency domain index k sc and a time domain index l sym .
  • the resource element specified by the frequency domain index k sc and the time domain index l sym is also referred to as a resource element (k sc , l sym ).
  • the frequency domain index k sc indicates any value from 0 to N ⁇ RB N RB sc ⁇ 1.
  • N ⁇ RB may be the number of resource blocks given for setting ⁇ of the subcarrier interval.
  • N ⁇ RB may be N size, ⁇ grid, x .
  • the frequency domain index k sc may correspond to the subcarrier index k sc .
  • the time domain index l sym may correspond to the OFDM symbol index l sym .
  • FIG. 3 is a schematic diagram illustrating an example of a resource grid in a subframe according to an aspect of the present embodiment.
  • the horizontal axis is the index l sym in the time domain
  • the vertical axis is the index k sc in the frequency domain.
  • the frequency domain resource grid including N ⁇ RB N RB sc subcarriers.
  • the time domain of the resource grid may include 14.2 ⁇ OFDM symbols.
  • One resource block is configured to include N RB sc subcarriers.
  • the time domain of a resource block may correspond to one OFDM symbol.
  • the time domain of the resource block may correspond to 14 OFDM symbols.
  • the time domain of a resource block may correspond to one or more slots.
  • the time domain of the resource block may correspond to one subframe.
  • the terminal device 1 may be instructed to perform transmission and reception using only a subset of the resource grid.
  • a subset of the resource grid is also referred to as BWP, which may be provided based at least on higher layer parameters and / or some or all of the DCI.
  • BWP is also called a carrier band part (Carrier @ Bandwidth @ Part).
  • the terminal device 1 may not be instructed to perform transmission and reception using all sets of the resource grid.
  • the terminal device 1 may be instructed to perform transmission and reception using some frequency resources in the resource grid.
  • One BWP may be configured from a plurality of resource blocks in the frequency domain.
  • One BWP may be configured from a plurality of resource blocks that are continuous in the frequency domain.
  • BWP set for a downlink carrier is also referred to as downlink BWP.
  • BWP set for an uplink carrier is also referred to as uplink BWP.
  • the BWP may be a subset of the carrier's band.
  • One or more downlink BWPs may be set for each of the serving cells.
  • One or more uplink BWPs may be configured for each of the serving cells.
  • One or a plurality of downlink BWPs set for the serving cell may be configured as one active downlink BWP.
  • the downlink BWP switch is used to deactivate one active downlink BWP and to activate inactive downlink BWPs other than the one active downlink BWP.
  • the downlink BWP switch may be controlled by a BWP field included in the downlink control information.
  • the downlink BWP switch may be controlled based on upper layer parameters.
  • the DL-SCH may be received in the active downlink BWP.
  • the PDCCH may be monitored.
  • a PDSCH may be received.
  • DL DL-SCH is not received in inactive downlink BWP.
  • the PDCCH is not monitored. No CSI for inactive downlink BWP is reported.
  • two or more downlink BWPs may not be set as the active downlink BWP.
  • one uplink BWP may be set as the active uplink BWP.
  • the uplink BWP switch is used to deactivate one active uplink BWP and activate (deactivate) inactive uplink BWPs other than the one active uplink BWP.
  • An uplink BWP switch may be controlled by a BWP field included in downlink control information. Uplink BWP switches may be controlled based on upper layer parameters.
  • ⁇ ⁇ ⁇ ⁇ UL-SCH may be transmitted in active uplink BWP.
  • the PUCCH may be transmitted.
  • the PRACH may be transmitted.
  • the SRS may be transmitted.
  • U UL-SCH is not transmitted in inactive uplink BWP.
  • PUCCH is not transmitted in the inactive uplink BWP.
  • the PRACH is not transmitted.
  • no SRS is transmitted.
  • two or more uplink BWPs may not be set as the active uplink BWP.
  • the upper layer parameters are parameters included in the upper layer signal.
  • the upper layer signal may be RRC (Radio Resource Control) signaling or MAC CE (Medium Access Control Control Element).
  • the upper layer signal may be an RRC layer signal or a MAC layer signal.
  • the upper layer signal may be common RRC signaling.
  • the common RRC signaling may include at least some or all of the following features C1 to C3. Feature C1) Feature mapped to BCCH logical channel or CCCH logical channel C2) Feature C3) including at least ReconfigurationWithSync information element Mapped to PBCH
  • the ReconfigurationWithSync information element may include information indicating a setting commonly used in the serving cell.
  • the setting commonly used in the serving cell may include at least the setting of the PRACH.
  • the setting of the PRACH may indicate at least one or a plurality of random access preamble indexes.
  • the configuration of the PRACH may indicate at least a time / frequency resource of the PRACH.
  • Common RRC signaling may include at least a common RRC parameter.
  • the common RRC parameter may be a cell-specific parameter commonly used in the serving cell.
  • the upper layer signal may be dedicated RRC signaling.
  • the dedicated RRC signaling may include at least some or all of the following features D1 to D2. Feature D1) Feature Mapped to DCCH Logical Channel D2) Does Not Include ReconfigurationWithSync Information Element
  • MIB Master Information Block
  • SIB System Information Block
  • higher layer messages that are mapped to the DCCH logical channel and that include at least the ReconfigurationWithSync information element may be included in the common RRC signaling.
  • an upper layer message that is mapped to the DCCH logical channel and does not include the ReconfigurationWithSync information element may be included in dedicated RRC signaling.
  • SIB may indicate at least a time index of an SS (Synchronization Signal) block.
  • An SS block (SS @ block) is also called an SS / PBCH block (SS / PBCH @ block).
  • the SIB may include at least information related to the PRACH resource.
  • the SIB may include at least information related to the setting of the initial connection.
  • the ReconfigurationWithSync information element may include at least information related to the PRACH resource.
  • the ReconfigurationWithSync information element may include at least information related to the setting of the initial connection.
  • the dedicated RRC signaling may include at least a dedicated RRC parameter.
  • the dedicated RRC parameter may be a (UE-specific) parameter used exclusively for the terminal device 1.
  • Dedicated RRC signaling may include at least common RRC parameters.
  • RRC parameters and dedicated RRC parameters are also referred to as upper layer parameters.
  • An uplink physical channel may correspond to a set of resource elements that carry information that occurs in higher layers.
  • An uplink physical channel is a physical channel used in an uplink carrier. In the wireless communication system according to one aspect of the present embodiment, at least some or all of the following uplink physical channels are 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 uplink control information includes channel state information (CSI: Channel State Information), scheduling request (SR: Scheduling Request), transport block (TB: Transport block, MAC PDU: Medium Access Control Protocol Data Unit, DL-SCH: Downlink).
  • CSI Channel State Information
  • SR Scheduling Request
  • transport block Transport block
  • MAC PDU Medium Access Control Protocol Data Unit
  • DL-SCH Downlink.
  • HARQ-ACK Hybrid Automatic Repeat Request ACKnowledgement
  • Uplink control information may be multiplexed on PUCCH.
  • the multiplexed PUCCH may be transmitted.
  • the HARQ-ACK information may include at least a HARQ-ACK bit corresponding to the transport block.
  • the HARQ-ACK bit may indicate ACK (acknowledgement) or NACK (negative-acknowledgement) corresponding to the transport block.
  • the ACK may be a value indicating that decoding of the transport block has been successfully completed.
  • NACK may be a value indicating that the transport block has not been successfully decoded.
  • the HARQ-ACK information may include at least one HARQ-ACK codebook including one or more HARQ-ACK bits. That the HARQ-ACK bit corresponds to one or more transport blocks may be that the HARQ-ACK bit corresponds to a PDSCH including the one or more transport blocks.
  • the HARQ-ACK bit may indicate ACK or NACK corresponding to one CBG (Code Block Group) included in the transport block.
  • HARQ-ACK is also referred to as HARQ feedback, HARQ information, and HARQ control information.
  • the scheduling request may be used at least to request PUSCH resources for initial transmission.
  • the scheduling request bit may be used to indicate either a positive SR (positive SR) or a negative SR (negative SR).
  • the fact that the scheduling request bit indicates a positive SR is also referred to as “a positive SR is transmitted”.
  • a positive SR may indicate that the terminal device 1 requests a PUSCH resource for initial transmission.
  • a positive SR may indicate that the scheduling request is triggered by higher layers.
  • the positive SR may be transmitted when the upper layer indicates to transmit a scheduling request.
  • the fact that the scheduling request bit indicates a negative SR is also referred to as “a negative SR is transmitted”.
  • a negative SR may indicate that PUSCH resources for initial transmission are not required by the terminal device 1.
  • a negative SR may indicate that the scheduling request is not triggered by higher layers.
  • a negative SR may be sent if the upper layer does not indicate to send a scheduling request.
  • the scheduling request bit may be used to indicate either a positive SR or a negative SR for any one or more SR configurations (SR configuration).
  • Each of the one or more SR settings may correspond to one or more logical channels.
  • the positive SR for a certain SR setting may be a positive SR for any or all of one or more logical channels corresponding to the certain SR setting.
  • a negative SR may not correspond to a particular SR setting. Indicating a negative SR may indicate a negative SR for all SR settings.
  • the SR setting may be a scheduling request ID (Scheduling Request ID).
  • the scheduling request ID may be given by an upper layer parameter.
  • the channel state information may include at least a part or all of a channel quality indicator (CQI: Channel Quality Indicator), a precoder matrix indicator (PMI: Precoder Matrix Indicator), and a rank indicator (RI: Rank Indicator).
  • CQI is an index related to channel quality (for example, propagation strength)
  • PMI is an index indicating a precoder
  • RI is an index indicating the transmission rank (or the number of transmission layers).
  • Channel state information may be provided based at least on receiving a physical signal (eg, CSI-RS) used at least for channel measurements.
  • the channel state information may include a value selected by the terminal device 1.
  • the channel state information may be selected by the terminal device 1 based at least on receiving a physical signal used at least for channel measurement.
  • Channel measurements include interference measurements.
  • the channel state information report is a report of the channel state information.
  • the channel state information report may include CSI part 1 and / or CSI part 2.
  • CSI part 1 may be configured to include at least part or all of wideband channel quality information (wideband CQI), wideband precoder matrix indicator (wideband ⁇ PMI), and rank indicator.
  • the number of bits of the CSI part 1 multiplexed on the PUCCH may be a predetermined value regardless of the value of the rank indicator of the channel state information report.
  • the number of bits of the CSI part 2 multiplexed on the PUCCH may be given based on the value of the rank indicator of the channel state information report.
  • the rank indicator of the channel state information report may be a value of the rank indicator used for calculating the channel state information report.
  • the rank indicator of the channel state information may be a value indicated by a rank indicator field included in the channel state information report.
  • the set of rank indicators allowed in the channel state information report may be a part or all of 1 to 8.
  • the set of rank indicators allowed in the channel state information report may be given at least based on the parameter RankRestriction of the upper layer. If the set of rank indicators allowed in the channel state information report includes only one value, the rank indicator of the channel state information report may be the one value.
  • the priority may be set for the channel state information report.
  • the priority of the channel state information report may be set based on the time domain behavior of the channel state information report, the content type of the channel state information report, the index of the channel state information report, and / or the channel state information report.
  • the measurement may be given based at least on part or all of the index of the serving cell for which the measurement is set.
  • the setting relating to the time domain behavior of the channel state information report is performed such that the channel state information report is performed aperiodicly, the channel state information report is performed semi-persistently, or , Or a setting indicating any of quasi-static.
  • the content type of the channel state information report may indicate whether or not the channel state information report includes Layer 1 RSRP (Reference Signals Received Power).
  • the index of the channel state information report may be given by an upper layer parameter.
  • PUCCH supports PUCCH format (PUCCH format 0 to PUCCH format 4).
  • the PUCCH format may be transmitted on the PUCCH.
  • the transmission of the PUCCH format may be the transmission of the PUCCH.
  • FIG. 4 is a diagram illustrating an example of the relationship between the PUCCH format and the length N PUCCH symb of the PUCCH format according to an aspect of the present embodiment.
  • the length N PUCCH symb of PUCCH format 0 is 1 or 2OFDM symbol.
  • the length N PUCCH symb of PUCCH format 1 is any one of 4 14OFDM symbols.
  • the length N PUCCH symb of PUCCH format 2 is 1 or 2OFDM symbol.
  • the length N PUCCH symb of PUCCH format 3 is any one of 4 14OFDM symbols.
  • the length N PUCCH symb of PUCCH format 4 is any one of 4 14OFDM symbols.
  • the PUSCH is used at least for transmitting a transport block (TB, MAC PDU, UL-SCH).
  • the PUSCH may be used to transmit at least some or all of the transport blocks, HARQ-ACK information, channel state information, and scheduling requests.
  • the PUSCH is used at least for transmitting the random access message 3.
  • PRACH is used at least for transmitting a random access preamble (random access message 1).
  • the PRACH includes an initial connection establishment procedure, a handover procedure, a connection re-establishment procedure, synchronization for PUSCH transmission (timing adjustment), and a part or all of a resource request for the PUSCH. May be used at least to indicate
  • the random access preamble may be used to notify the base station device 3 of an index (random access preamble index) given from an upper layer of the terminal device 1.
  • the random access preamble may be given by cyclically shifting the Zadoff-Chu sequence corresponding to the physical root sequence index u.
  • the Zadoff-Chu sequence may be generated based on the physical root sequence index u.
  • a plurality of random access preambles may be defined in one serving cell (serving @ cell).
  • the random access preamble may be specified based at least on the index of the random access preamble. Different random access preambles corresponding to different indexes of the random access preamble may correspond to different combinations of the physical root sequence index u and the cyclic shift.
  • the physical root sequence index u and the cyclic shift may be given based at least on information included in the system information.
  • the physical root sequence index u may be an index for identifying a sequence included in the random access preamble.
  • the random access preamble may be specified based at least on the physical root sequence index u.
  • the following uplink physical signals are used in uplink wireless communication.
  • the uplink physical signal may not be used for transmitting information output from the upper layer, but is used by the physical layer.
  • ⁇ UL DMRS UpLink Demodulation Reference Signal
  • SRS Sounding Reference Signal
  • UL PTRS UpLink Phase Tracking Reference Signal
  • ⁇ UL ⁇ DMRS is related to the transmission of PUSCH and / or PUCCH.
  • UL @ DMRS is multiplexed with PUSCH or PUCCH.
  • the base station apparatus 3 may use UL @ DMRS in order to perform the PUSCH or PUCCH propagation path correction.
  • transmitting the PUSCH and the UL @ DMRS related to the PUSCH together is simply referred to as transmitting the PUSCH.
  • transmitting the PUCCH and the UL @ DMRS related to the PUCCH together is simply referred to as transmitting the PUCCH.
  • UL @ DMRS related to PUSCH is also referred to as UL @ DMRS for PUSCH.
  • UL @ DMRS related to PUCCH is also referred to as UL @ DMRS for PUCCH.
  • the SRS may not be related to PUSCH or PUCCH transmission.
  • the base station device 3 may use the SRS for measuring the channel state.
  • the SRS may be transmitted at the end of a subframe in an uplink slot or a predetermined number of OFDM symbols from the end.
  • ⁇ UL ⁇ PTRS may be a reference signal used at least for phase tracking.
  • the UL @ PTRS may be associated with a UL @ DMRS group that includes at least an antenna port used for one or more UL @ DMRS.
  • the association between the UL @ PTRS and the UL @ DMRS group may be that at least a part or all of the antenna ports of the UL @ PTRS and the antenna ports included in the UL @ DMRS group are QCLs.
  • the UL @ DMRS group may be identified based at least on the antenna port with the smallest index in the UL @ DMRS included in the UL @ DMRS group.
  • UL @ PTRS may be mapped to the antenna port with the smallest index in one or more antenna ports to which one codeword is mapped.
  • UL @ PTRS may be mapped to a first layer if one codeword is at least mapped to the first layer and the second layer.
  • UL @ PTRS may not be mapped to the second layer.
  • the index of the antenna port to which UL @ PTRS is mapped may be given based at least on the downlink control information.
  • the following downlink physical channel is used in downlink wireless communication from the base station device 3 to the terminal device 1.
  • the downlink physical channel is used by the physical layer to transmit information output from an upper layer.
  • ⁇ PBCH Physical Broadcast Channel
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • $ PBCH is at least used to transmit MIB and / or PBCH payloads.
  • the PBCH payload may include at least information indicating an index related to the transmission timing of the SS block.
  • the PBCH payload may include information related to the SS block identifier (index).
  • the PBCH may be transmitted based on a predetermined transmission interval.
  • the PBCH may be transmitted at 80 ms intervals.
  • the PBCH may be transmitted at an interval of 160 ms.
  • the content of the information included in the PBCH may be updated every 80 ms. Part or all of the information included in the PBCH may be updated every 160 ms.
  • the PBCH may be configured with 288 subcarriers.
  • the PBCH may be configured to include 2, 3, or 4 OFDM symbols.
  • the MIB may include information related to the identifier (index) of the SS block.
  • the MIB may include information indicating a slot number in which the PBCH is transmitted, a subframe number, and / or at least a part of a radio frame number.
  • the PDCCH is used at least for transmission of downlink control information (DCI: Downlink Control Information).
  • the PDCCH may be transmitted including at least downlink control information.
  • the PDCCH may be transmitted including downlink control information.
  • Downlink control information is also called DCI format.
  • the downlink control information may indicate at least either a downlink grant (downlink @ grant) or an uplink grant (uplink @ grant).
  • the DCI format used for PDSCH scheduling is also called a downlink DCI format.
  • the DCI format used for PUSCH scheduling is also called an uplink DCI format.
  • a downlink grant is also called a downlink assignment (downlink @ assignment) or a downlink assignment (downlink @ allocation).
  • the uplink DCI format includes at least one or both of DCI format 0_0 and DCI format 0_1.
  • the DCI format 0_0 includes at least a part or all of 1A to 1F.
  • the DCI format specifying field may be used at least to indicate whether the DCI format including the DCI format specifying field corresponds to one or a plurality of DCI formats.
  • the one or more DCI formats may be provided based at least on part or all of DCI format 1_0, DCI format 1_1, DCI format 0_0, and / or DCI format 0_1.
  • the frequency domain resource allocation field may be at least used to indicate frequency resource allocation for a PUSCH scheduled by a DCI format including the frequency domain resource allocation field.
  • the time domain resource allocation field may be used at least to indicate time resource allocation for a PUSCH scheduled according to the DCI format including the time domain resource allocation field.
  • the frequency hopping flag field may be used at least to indicate whether frequency hopping is applied to a PUSCH scheduled according to the DCI format including the frequency hopping flag field.
  • the MCS field may be used at least to indicate a modulation scheme for a PUSCH scheduled by a DCI format including the MCS field and / or a part or all of a target coding rate.
  • the target coding rate may be a target coding rate for a transport block of the PUSCH.
  • the size of the transport block (TBS: Transport Block Size) may be given based at least on the target coding rate.
  • the first CSI request field is used at least to indicate CSI reporting.
  • the size of the first CSI request field may be a predetermined value.
  • the size of the first CSI request field may be zero, one, two, or three.
  • the DCI format 0_1 is configured to include at least a part or all of 2A to 2G.
  • the BWP field may be used to indicate the uplink BWP to which the PUSCH scheduled according to DCI format 0_1 is mapped.
  • the second CSI request field is used at least to indicate CSI reporting.
  • the size of the second CSI request field may be given at least based on an upper layer parameter ReportTriggerSize.
  • the downlink DCI format includes at least one or both of DCI format 1_0 and DCI format 1_1.
  • the DCI format 1_0 includes at least a part or all of 3A to 3H.
  • the timing indication field from the PDSCH to the HARQ feedback may be a field indicating the timing K1.
  • the index of the slot including the last OFDM symbol of the PDSCH is slot n
  • the index of the PUCCH including at least HARQ-ACK corresponding to the transport block included in the PDSCH or the index of the slot including the PUSCH is n + K1. Is also good.
  • the index of the slot including the last OFDM symbol of the PDSCH is slot n
  • the first OFDM symbol of the PUCCH or the first OFDM symbol of the PUSCH including at least the HARQ-ACK corresponding to the transport block included in the PDSCH is The index of the included slot may be n + K1.
  • the PUCCH resource indication field may be a field indicating an index of one or more PUCCH resources included in the PUCCH resource set.
  • the DCI format 1_1 is configured to include at least a part or all of 4A to 4J.
  • the BWP field may be used to indicate a downlink BWP to which a PDSCH scheduled according to DCI format 1_1 is mapped.
  • DCI format 2 may include a parameter used for transmission power control of PUSCH or PUCCH.
  • the number of resource blocks indicates the number of resource blocks in the frequency domain unless otherwise specified.
  • the resource block index is assigned in ascending order from a resource block mapped to a low frequency region to a resource block mapped to a high frequency region.
  • the resource block is a general term for a common resource block and a physical resource block.
  • One physical channel may be mapped to one serving cell.
  • One physical channel may be mapped to one carrier band part set to one carrier included in one serving cell.
  • the terminal device 1 is provided with one or a plurality of control resource sets (CORESET: COntrol REsource SET).
  • the terminal device 1 monitors the PDCCH in one or a plurality of control resource sets.
  • the control resource set may indicate a time-frequency domain to which one or more PDCCHs can be mapped.
  • the control resource set may be an area where the terminal device 1 monitors the PDCCH.
  • the control resource set may be configured by continuous resources (Localized @ resource).
  • the control resource set may be configured by discontinuous resources (distributed @ resource).
  • the unit of mapping of the control resource set may be a resource block.
  • the unit of mapping of the control resource set may be six resource blocks.
  • the unit of mapping of the control resource set may be an OFDM symbol.
  • the unit of mapping of the control resource set may be one OFDM symbol.
  • the frequency domain of the control resource set may be provided based on at least an upper layer signal and / or downlink control information.
  • the time domain of the control resource set may be given based on at least an upper layer signal and / or downlink control information.
  • a certain control resource set may be a common control resource set (Common control resource set).
  • the common control resource set may be a control resource set commonly set for a plurality of terminal devices 1.
  • the common control resource set may be given based at least on MIB, SIB, common RRC signaling, and part or all of the cell ID.
  • the time resources and / or frequency resources of the control resource set configured to monitor the PDCCH used for SIB scheduling may be provided based at least on the MIB.
  • a certain control resource set may be a dedicated control resource set (Dedicated control resource set).
  • the dedicated control resource set may be a control resource set set to be used exclusively for the terminal device 1.
  • a dedicated control resource set may be provided based at least on dedicated RRC signaling.
  • a set of PDCCH candidates monitored by the terminal device 1 may be defined in terms of a search area. That is, the set of PDCCH candidates monitored by the terminal device 1 may be given by the search area.
  • the search area may be configured to include one or more PDCCH candidates of one or more aggregation levels (Aggregationgreglevel).
  • the aggregation level of the PDCCH candidates may indicate the number of CCEs constituting the PDCCH.
  • the terminal device 1 may monitor at least one or a plurality of search areas in a slot where DRX (Discontinuous reception) is not set. DRX may be given based at least on upper layer parameters. The terminal device 1 may monitor at least one or a plurality of search area sets (Search ⁇ space ⁇ set) in slots in which DRX is not set.
  • DRX discontinuous reception
  • the terminal device 1 may monitor at least one or a plurality of search area sets (Search ⁇ space ⁇ set) in slots in which DRX is not set.
  • the search area set may include at least one or a plurality of search areas.
  • the type of the search area set is a type 0 PDCCH common search area (common @ search ⁇ space), a type 0a PDCCH common search area, a type 1 PDCCH common search area, a type 2 PDCCH common search area, a type 3 PDCCH common search area, and / or a UE-specific PDCCH search. It may be any of the regions.
  • the type 0 PDCCH common search area, the type 0a PDCCH common search area, the type 1 PDCCH common search area, the type 2 PDCCH common search area, and the type 3 PDCCH common search area are also referred to as CSS (Common Search Space).
  • the UE-specific PDCCH search area is also called USS (UE ⁇ specific ⁇ Search ⁇ Space).
  • Each of the search area sets may be associated with one control resource set.
  • Each of the search area sets may be at least included in one control resource set.
  • an index of a control resource set associated with the search area set may be given.
  • the type 0 PDCCH common search area may be at least used for a DCI format with a CRC (Cyclic Redundancy Check) sequence scrambled by an SI-RNTI (System Information-Radio Network Temporary Identifier).
  • the setting of the type 0 PDCCH common search area may be given based on at least four bits of LSB (Least Significant Bits) of the upper layer parameter PDCCH-ConfigSIB1.
  • the upper layer parameter PDCCH-ConfigSIB1 may be included in the MIB.
  • the setting of the type-0 PDCCH common search area may be given based at least on the upper layer parameter SearchSpaceZero.
  • the interpretation of the bits of the upper layer parameter SearchSpaceZero may be the same as the interpretation of the four bits of the LSB of the upper layer parameter PDCCH-ConfigSIB1.
  • the setting of the type-0 PDCCH common search area may be given based at least on the upper layer parameter SearchSpaceSIB1.
  • the upper layer parameter SearchSpaceSIB1 may be included in the upper layer parameter PDCCH-ConfigCommon.
  • the PDCCH detected in the type-0 PDCCH common search area may be used at least for scheduling of the PDSCH transmitted including the SIB1.
  • SIB1 is a type of SIB.
  • SIB1 may include scheduling information of SIBs other than SIB1.
  • the terminal device 1 may receive the upper layer parameter PDCCH-ConfigCommon in EUTRA.
  • the terminal device 1 may receive the upper layer parameter PDCCH-ConfigCommon in the MCG.
  • the type 0a PDCCH common search area may be used at least for a DCI format with a CRC (Cyclic Redundancy Check) sequence scrambled by an SI-RNTI (System Information-Radio Network Temporary Identifier).
  • the setting of the type 0a PDCCH common search area may be given at least based on the upper layer parameter SearchSpaceOtherSystemInformation.
  • the upper layer parameter SearchSpaceOtherSystemInformation may be included in SIB1.
  • the upper layer parameter SearchSpaceOtherSystemInformation may be included in the upper layer parameter PDCCH-ConfigCommon.
  • the PDCCH detected in the type-0 PDCCH common search area may be at least used for scheduling the PDSCH transmitted including SIBs other than SIB1.
  • the type 1 PDCCH common search area is accompanied by a CRC sequence scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) and / or a CRC sequence scrambled by TC-RNTI (Temporary Common-Radio Network Temporary Identifier). It may be used at least for the DCI format.
  • the RA-RNTI may be given based at least on the time / frequency resource of the random access preamble transmitted by the terminal device 1.
  • the TC-RNTI may be provided by a PDSCH (also called Message 2 or Random Access Response) scheduled in a DCI format with a CRC sequence scrambled by the RA-RNTI.
  • the type-1 PDCCH common search area may be provided based at least on the parameter ra-SearchSpace of the upper layer.
  • the parameter ra-SearchSpace of the upper layer may be included in SIB1.
  • the upper layer parameter ra-SearchSpace may be included in the upper layer parameter PDCCH-ConfigCommon.
  • the type 2 PDCCH common search area 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 P-RNTI may be used at least for transmission of a DCI format including information for notifying a change of the SIB.
  • the type-2 PDCCH common search area may be given based at least on the upper layer parameter PagingSearchSpace.
  • the parameter PagingSearchSpace of the upper layer may be included in SIB1.
  • the upper layer parameter PagingSearchSpace may be included in the upper layer parameter PDCCH-ConfigCommon.
  • the Type 3 PDCCH common search region may be used for a DCI format with a CRC sequence scrambled by a C-RNTI (Cell-Radio Network Network Temporary Identifier).
  • the C-RNTI may be provided at least based on a PDSCH (also called message 4 or contention resolution) scheduled in a DCI format with a CRC sequence scrambled by the TC-RNTI.
  • the type 3 PDCCH common search region may be a search region set given when the parameter SearchSpaceType of the upper layer is set to common.
  • the UE-specific PDCCH search region may be at least used for a DCI format with a CRC sequence scrambled by C-RNTI.
  • the type-0 PDCCH common search area, the type-0a PDCCH common search area, the type-1 PDCCH common search area, and / or the type-2 PDCCH common search area includes a CRC scrambled by the C-RNTI. It may be used at least for the DCI format with sequences.
  • the search area set given at least based on any of the parameters PagingSearchSpace may be used at least for the DCI format with a CRC sequence scrambled with C-RNTI.
  • the common control resource set may include at least one of CSS and USS.
  • the dedicated control resource set may include at least one or both of CSS and USS.
  • the physical resource of the search area is configured by a control channel constituent unit (CCE: Control @ Channel @ Element).
  • CCE Control @ Channel @ Element
  • the CCE is composed of six resource element groups (REG: Resource ⁇ Element ⁇ Group).
  • the REG may be configured by one OFDM symbol of one PRB (Physical Resource Block). That is, the REG may include 12 resource elements (RE: Resource @ Element).
  • PRB is also simply called RB (Resource @ Block: resource block).
  • the PDSCH is used at least for transmitting a transport block.
  • the PDSCH may be used at least for transmitting the random access message 2 (random access response).
  • the PDSCH may be used at least to transmit system information including parameters used for initial access.
  • the following downlink physical signals are used in downlink wireless communication.
  • the downlink physical signal may not be used for transmitting information output from the upper layer, but is used by the physical layer.
  • SS Synchronization signal
  • DL DMRS DownLink DeModulation Reference Signal
  • CSI-RS Channel State Information-Reference Signal
  • DL PTRS DownLink Phase Tracking Reference Signal
  • TRS Track Reference Signal
  • the synchronization signal is used for the terminal device 1 to synchronize in the downlink frequency domain and / or the time domain.
  • the synchronization signal includes PSS (Primary @ Synchronization @ Signal) and SSS (Secondary @ Synchronization @ Signal).
  • the SS block (SS / PBCH block) is configured to include at least a part or all of PSS, SSS, and PBCH. Some or all of the antenna ports of the PSS, the SSS, and the PBCH included in the SS block may be the same. Some or all of the PSS, SSS, and PBCH included in the SS block may be mapped to consecutive OFDM symbols. Each of the PSS, SSS, and some or all of the PBCH included in the SS block may have the same CP setting. The setting ⁇ of the subcarrier interval of each of the PSS, SSS, and part or all of the PBCH included in the SS block may be the same.
  • ⁇ DL ⁇ DMRS is related to the transmission of PBCH, PDCCH and / or PDSCH.
  • DL @ DMRS is multiplexed on PBCH, PDCCH, and / or PDSCH.
  • the terminal device 1 may use the PBCH, the PDCCH, or the DL @ DMRS corresponding to the PDSCH to perform propagation path correction on the PBCH, the PDCCH, or the PDSCH.
  • transmitting the PBCH and the DL @ DMRS associated with the PBCH together is referred to as transmitting the PBCH.
  • the fact that the PDCCH and the DL @ DMRS associated with the PDCCH are transmitted together is simply referred to as the transmission of the PDCCH.
  • the transmission of the PDSCH and the DL @ DMRS associated with the PDSCH together is simply referred to as the transmission of the PDSCH.
  • DL @ DMRS related to PBCH is also referred to as DL @ DMRS for PBCH.
  • the DL @ DMRS associated with PDSCH is also referred to as DL @ DMRS for PDSCH.
  • the DL @ DMRS associated with the PDCCH is also referred to as the DL @ DMRS associated with the PDCCH.
  • ⁇ DL ⁇ DMRS may be a reference signal individually set in the terminal device 1.
  • the DL DMRS sequence may be given at least based on parameters individually set in the terminal device 1.
  • the DL DMRS sequence may be provided based on at least a UE-specific value (eg, C-RNTI, etc.).
  • DL @ DMRS may be sent separately for PDCCH and / or PDSCH.
  • CSI-RS may be a signal used at least for calculating channel state information.
  • the CSI-RS pattern assumed by the terminal device may be given at least by a parameter of an upper layer.
  • PTRS may be a signal used at least for phase noise compensation.
  • the pattern of the PTRS assumed by the terminal device may be given based on at least a parameter of an upper layer and / or DCI.
  • the DL PTRS may be associated with a DL DMRS group that includes at least an antenna port used for one or more DL DMRS.
  • the association between the DL @ PTRS and the DL @ DMRS group may be that part or all of the antenna port of the DL @ PTRS and the antenna port included in the DL @ DMRS group are at least QCL.
  • the DL @ DMRS group may be identified based at least on the antenna port with the smallest index in the DL @ DMRS included in the DL @ DMRS group.
  • TRS may be a signal used at least for time and / or frequency synchronization.
  • the TRS pattern assumed by the terminal device may be given based at least on upper layer parameters and / or DCI.
  • the downlink physical channel and the downlink physical signal are also referred to as a downlink signal.
  • the uplink physical channel and the uplink physical signal are also called an uplink signal.
  • the downlink signal and the uplink signal are also collectively called a physical signal.
  • the downlink signal and the uplink signal are also collectively called a signal.
  • the downlink physical channel and the uplink physical channel are collectively referred to as a physical channel.
  • the downlink physical signal and the uplink physical signal are collectively referred to as a physical signal.
  • BCH Broadcast CHannel
  • UL-SCH Uplink-Shared CHannel
  • DL-SCH Downlink-Shared CHannel
  • a channel used in a medium access control (MAC) layer is called a transport channel.
  • the unit of the transport channel used in the MAC layer is also called a transport block (TB) or MAC @ PDU.
  • HARQ Hybrid Automatic Repeat reQuest
  • the transport block is a unit of data that the MAC layer delivers to the physical layer.
  • transport blocks are mapped to codewords, and modulation processing is performed for each codeword.
  • the base station device 3 and the terminal device 1 exchange (transmit and receive) upper layer signals in the upper layer (higher layer).
  • the base station device 3 and the terminal device 1 may transmit and receive RRC signaling (RRC message: Radio Resource Control message, RRC information: Radio Resource Control information) in a radio resource control (RRC: Radio Resource Control) layer.
  • RRC Radio Resource Control
  • the base station device 3 and the terminal device 1 may transmit and receive MAC @ CE (Control @ Element) in the MAC layer.
  • RRC signaling and / or MAC @ CE are also referred to as higher layer signaling.
  • the PUSCH and PDSCH may be at least used for transmitting RRC signaling and / or MAC CE.
  • the RRC signaling transmitted by the PDSCH from the base station device 3 may be a common signaling to a plurality of terminal devices 1 in the serving cell. Signaling common to a plurality of terminal devices 1 in a serving cell is also referred to as common RRC signaling.
  • the RRC signaling transmitted by the PDSCH from the base station device 3 may be signaling dedicated to a certain terminal device 1 (also referred to as dedicated @ signaling or UE @ specific @ signaling). Signaling dedicated to the terminal device 1 is also referred to as dedicated RRC signaling.
  • Upper layer parameters unique to the serving cell may be transmitted using common signaling for a plurality of terminal devices 1 in the serving cell or dedicated signaling for a certain terminal device 1. UE-specific upper layer parameters may be transmitted to a certain terminal device 1 using dedicated signaling.
  • the BCCH Broadcast Control CHannel
  • the CCCH Common Control CHannel
  • the DCCH Dedicated Control CHannel
  • the BCCH is an upper layer channel used for transmitting MIB.
  • the CCCH Common ⁇ Control ⁇ CHannel
  • the DCCH is an upper layer channel used at least for transmitting dedicated control information (dedicated control information) to the terminal device 1.
  • the DCCH may be used, for example, for the terminal device 1 connected to the RRC.
  • the BCCH in the logical channel may be mapped to the BCH, DL-SCH, or UL-SCH in the transport channel.
  • the CCCH in a logical channel may be mapped to a DL-SCH or a UL-SCH in a transport channel.
  • the DCCH in the logical channel may be mapped to the DL-SCH or UL-SCH in the transport channel.
  • UUL-SCH in transport channel may be mapped to PUSCH in physical channel.
  • the DL-SCH in the transport channel may be mapped to the PDSCH in the physical channel.
  • the BCH in the transport channel may be mapped to the PBCH in the physical channel.
  • FIG. 5 is a schematic block diagram illustrating a configuration of the terminal device 1 according to an aspect of the present embodiment.
  • the terminal device 1 is configured to include a wireless transmission / reception unit 10 and an upper layer processing unit 14.
  • the wireless transmission / reception unit 10 includes at least a part or all of an antenna unit 11, an RF (RadioRFrequency) unit 12, and a baseband unit 13.
  • the upper layer processing unit 14 is configured to include 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 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.
  • the upper layer processing unit 14 outputs the uplink data (transport block) generated by a user operation or the like to the wireless transmission / reception unit 10.
  • the upper layer processing unit 14 performs processing of a MAC layer, a packet data integration protocol (PDCP: Packet Data Convergence Protocol) layer, a radio link control (RLC: Radio Link Control) layer, and an RRC layer.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • the medium access control layer processing unit 15 included in the upper layer processing unit 14 performs processing of the MAC layer.
  • the radio resource control layer processing unit 16 included in the upper layer processing unit 14 performs processing of the RRC layer.
  • the radio resource control layer processing unit 16 manages various setting information / parameters of the own device.
  • the radio resource control layer processing unit 16 sets various setting information / parameters based on the upper layer signal received from the base station device 3. That is, the radio resource control layer processing unit 16 sets various setting information / parameters based on information indicating various setting information / parameters received from the base station device 3.
  • the parameter may be an upper layer parameter.
  • the wireless transmission / reception unit 10 performs physical layer processing such as modulation, demodulation, encoding, and decoding.
  • the wireless transmission / reception unit 10 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 generates a physical signal by modulating, encoding, and generating a baseband signal (conversion to a time continuous signal), and transmits the physical signal to the base station device 3.
  • the RF unit 12 converts a signal received via the antenna unit 11 into a baseband signal by quadrature demodulation (down-conversion: down convert), and removes unnecessary frequency components.
  • the RF unit 12 outputs the processed analog signal to the baseband unit.
  • the baseband unit 13 converts an analog signal input from the RF unit 12 into a digital signal.
  • the baseband unit 13 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs fast Fourier transform (FFT: Fast Fourier Transform) on the signal from which the CP has been removed, and converts the signal in the frequency domain. Extract.
  • FFT Fast Fourier Transform
  • the baseband unit 13 performs an inverse fast Fourier transform (IFFT) on the data, generates an OFDM symbol, adds a CP to the generated OFDM symbol, generates a baseband digital signal, and generates a baseband digital signal.
  • IFFT inverse fast Fourier transform
  • the band digital signal is converted into an analog signal.
  • the baseband unit 13 outputs the converted analog signal to the RF unit 12.
  • the RF unit 12 removes extra frequency components from the analog signal input from the baseband unit 13 using a low-pass filter, up-converts the analog signal to a carrier frequency, and transmits the analog signal via the antenna unit 11. I do. Further, the RF unit 12 amplifies the power. Further, the RF unit 12 may have a function of controlling transmission power. The RF unit 12 is also called a transmission power control unit.
  • FIG. 6 is a schematic block diagram illustrating a configuration of the base station device 3 according to one aspect of the present embodiment.
  • the base station device 3 is configured to include a radio transmission / reception unit 30 and an upper layer processing unit 34.
  • the wireless transmission / reception unit 30 includes an antenna unit 31, an RF unit 32, and a baseband unit 33.
  • the upper layer processing unit 34 includes a medium access control layer processing unit 35 and a radio resource control layer processing unit 36.
  • the wireless transmission / reception unit 30 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit.
  • the upper layer processing unit 34 performs processing of the MAC layer, PDCP layer, RLC layer, and RRC layer.
  • the medium access control layer processing unit 35 included in the upper layer processing unit 34 performs processing of the MAC layer.
  • the radio resource control layer processing unit 36 included in the upper layer processing unit 34 performs processing of the RRC layer.
  • the radio resource control layer processing unit 36 generates downlink data (transport block), system information, an RRC message, a MAC @ CE, and the like arranged on the PDSCH, or obtains the information from an upper node, and outputs the acquired data to the radio transmitting / receiving unit 30. .
  • the radio resource control layer processing unit 36 manages various setting information / parameters of each terminal device 1.
  • the radio resource control layer processing unit 36 may set various setting information / parameters for each of the terminal devices 1 via a signal of an upper layer. That is, the radio resource control layer processing unit 36 transmits / reports information indicating various setting information / parameters.
  • the function of the wireless transmission / reception unit 30 is the same as that of the wireless transmission / reception unit 10, and the description is omitted.
  • Each of the units denoted by reference numerals 10 to 16 included in the terminal device 1 may be configured as a circuit.
  • Each of the units denoted by reference numerals 30 to 36 included in the base station device 3 may be configured as a circuit.
  • Some or all of the units denoted by reference numerals 10 to 16 included in the terminal device 1 may be configured as a memory and a processor connected to the memory.
  • Part or all of the units denoted by reference numerals 30 to 36 included in the base station device 3 may be configured as a memory and a processor connected to the memory.
  • Various aspects (operations and processing) according to the present embodiment may be realized (performed) in a memory included in the terminal device 1 and / or the base station device 3 and a processor connected to the memory.
  • FIG. 7 is a diagram illustrating an example of communication between the base station device 3 and the terminal device 1 according to an aspect of the present embodiment.
  • the horizontal axis in FIG. 7 indicates the frequency axis.
  • Point (Point) 7000 is an identifier for specifying a certain subcarrier.
  • Point 7000 is also referred to as point A.
  • Common resource block (Common resource block) 7100 is a common resource block for setting mu 1 subcarrier spacing. Setting mu 1 subcarrier spacing may be zero.
  • Points 7000 are awarded based at least on upper layer parameters. For example, point A may be given based on at least subcarrier # 0, offset parameter A, and offset parameter B in common resource block 7100 with the smallest index among the subcarriers to which the PBCH is mapped.
  • subcarrier # 0 of the common resource block 7100 having the smallest index is also referred to as a point 6998.
  • Subcarrier # 0 may be a subcarrier with index 0.
  • the subcarrier # 0 of a certain resource block may be a subcarrier mapped to the lowest frequency position in the certain resource block.
  • the offset parameter A may be provided based on at least one or both of parameters included in the MIB and / or scrambling of a DMRS related to a PBCH including the MIB.
  • the offset parameter A may be an offset value indicating the difference between the points 6998 and 6999.
  • the offset value may be given by the number of subcarriers.
  • Point 6999 may be subcarrier # 0 of common resource block 7100 with index NCRB SSB .
  • the index NCRB SSB may be provided at least based on upper layer parameters.
  • the reference point of the common resource block 7100 is a common resource block including the point 7000.
  • the reference point of the common resource block 7100 may be the common resource block 7100 with index 0.
  • Common resource blocks configured to include a point 7000 is referred both common resource block # 0 for setting mu 1 subcarrier spacing.
  • the center frequency of subcarrier # 0 in common resource block 7100 with index 0 may be point 7000.
  • Block indicated by upward-sloping diagonal 7 shows a common resource block 7100 the index 0 to the configuration mu 1 subcarrier spacing.
  • Common resource block 7100 a common resource block configured to include a setting mu 1 subcarrier subcarrier spacing.
  • Offset 7011 shown in FIG. 7, at least used to indicate the resource grid 7101 provided for the setting mu 1 and the carrier 7001 of the sub-carrier interval.
  • a block indicated by a lattice pattern in FIG. 7 indicates a reference point of the resource grid 7101.
  • the reference point of resource grid 7101 corresponds to the common resource block of index N 7011 in common resource block 7100.
  • N 7011 is an offset value indicating the difference between resource blocks from the point 7000 to the reference point of the resource grid 7101.
  • N 7011 is given by offset 7011.
  • N 7011 is represented by the set mu 1 subcarrier spacing of the carrier 7001.
  • Offset 7013 shown in FIG. 7 is used at least to indicate BWP 7003.
  • Resource blocks indicated by horizontal lines in FIG. 7 indicate reference points of BWP7003.
  • the reference point of BWP7003 may be a physical resource block with index 0.
  • the reference point of the common resource block 7200 is a common resource block including the point 7000.
  • the reference point of the common resource block 7200 may be the common resource block of the index 7200.
  • Block indicated by downward-sloping diagonal 7 shows a common resource block index 0 for setting mu 2 subcarrier spacing.
  • Common resource block 7200 a common resource block configured to include a setting mu 2 subcarriers subcarrier spacing.
  • Offset 7012 shown in FIG. 7, at least used to indicate the resource grid 7102 provided for the setting mu 2 and the carrier 7002 of the sub-carrier interval.
  • a block indicated by a vertical line in FIG. 7 indicates a reference point of the resource grid 7102.
  • the reference point of resource grid 7102 corresponds to the common resource block at index N 7012 in common resource block 7200.
  • N 7012 is an offset value indicating a difference between the resource blocks from the common resource block index 0 to the reference point of the resource grid 7102 for setting mu 2 subcarrier spacing.
  • N 7012 is given by offset 7012.
  • N 7012 is represented by the setting ⁇ 2 of the subcarrier interval of the carrier 7002.
  • the offset 7014 shown in FIG. 7 is used at least to indicate the BWP 7004.
  • a resource block indicated by a dot pattern in FIG. 7 indicates a reference point of BWP7004.
  • the reference point of BWP7004 may be a physical resource block with index 0.
  • FIG. 8 is a diagram illustrating an example of DMRS mapping related to PDCCH 8001 according to an aspect of the present embodiment.
  • the DMRS scramble sequence r (x) related to the PDCCH 8001 is mapped to a part of the resource elements included in the REG configuring the PDCCH 8001.
  • the solid blocks and the hatched blocks in FIG. 8 indicate resource elements.
  • the plain block is a resource element that does not correspond to the scramble sequence r (x) of the DMRS related to the PDCCH.
  • x is an integer of 0 or more.
  • a block with a diagonal line rising to the right is a resource element corresponding to a scramble sequence r (x) of the DMRS related to the PDCCH.
  • the resource element corresponding to the DMRS scramble sequence r (x) related to the PDCCH may be a resource element to which the scramble sequence r (x) is mapped to the resource element when a predetermined condition A is satisfied.
  • the predetermined condition A may be that the resource element is included in a REG configuring a PDCCH.
  • PDCCH8001 may be mapped to a set of resource blocks including the resource blocks #n 1 and the resource block #n 2.
  • the number of resource blocks to which PDCCH 8001 is mapped may be any one of 1, 2, 4, 8, and 16.
  • the reference point of the resource element corresponding to the DMRS scramble sequence r (x) related to the PDCCH is a subcarrier # of the common resource block with index 0. It may be 0.
  • the reference point of the resource element corresponding to the scrambling sequence r (x) of the DMRS related to the PDCCH is the Subcarrier # 0 of the common resource block with index 0 for the interval setting ⁇ may be used. . That is, the scramble sequence r (x) of the DMRS related to the PDCCH 8001 may be mapped based on the index of the common resource block.
  • n RB index indicates an arbitrary integer of 0 or more.
  • k sc_tmp indicates 0, 1, or 2. That is, the subcarrier index k sc of the resource element corresponding to the scramble sequence r (x) of the DMRS related to the PDCCH may be given based on n RB index and any set of values of k sc_tmp .
  • FIG. 9 is a diagram illustrating an example of a resource allocation method for a control resource set according to an aspect of the present embodiment.
  • the horizontal axis is the frequency axis, and each block indicates a resource block.
  • the resource blocks in FIG. 9 may be common resource blocks.
  • the six resource blocks constitute a resource block group (RBG: Resource Block Group).
  • N RBG indicates the number of RBGs.
  • NRBG may be a predetermined value.
  • NRBG may be 45 or 46.
  • the NRBG may be given independently of the carrier bandwidth or the BWP bandwidth.
  • the value multiplied by NRBG and the number of resource blocks per RBG may correspond to the maximum bandwidth Nmax of the carrier.
  • floor (A) is a floor function.
  • floor (A) may be a function that outputs the largest integer that does not exceed A.
  • ceil (B) is a ceiling function. ceil (B) may be a function that outputs the smallest integer within a range not less than B.
  • NRBG may correspond to the number of bits of an upper layer parameter FrequencyDomainResources indicating frequency resource allocation of the control resource set. That is, the parameter FrequencyDomainResources upper layer is based on a bit corresponding to each of the N RBG number of RBG, it may be a bit map to provide a resource blocks constituting the control resource set.
  • a resource block indicated by a horizontal line is a reference resource block of the parameter FrequencyDomainResources of the upper layer (a resource block of the index Nref ).
  • Parameters FrequencyDomainResources upper layer comprises a bitmap composed of bits corresponding to each of the N RBG number of RBG.
  • the MSB (Most Significant Bit) of the bitmap may correspond to an RBG including a reference resource block.
  • the least significant bit (LSB: Least Significant Bit) of the bitmap may correspond to an RBG including a reference resource block.
  • the Nth bit of the bitmap may correspond to the RBG of index N. If the Nth bit of the bitmap is set to 1, the control resource set is mapped to the resource block of the RBG with index N.
  • FIG. 9A shows Case 1 of the resource allocation method for the control resource set.
  • the resource block X start corresponding to the lowest frequency region among the RBGs with index 0 is a resource block with index N ref . That is, in case 1, the resource block corresponding to the lowest frequency among the resource blocks corresponding to the parameter FrequencyDomainResources of the upper layer is the reference resource block of the index Nref .
  • FIG. 9B shows case 2 of the resource allocation method for the control resource set.
  • blocks indicated by oblique lines rising to the right indicate resource blocks with index 0.
  • the condition that the resource block of the index X start corresponding to the lowest frequency region among the RBGs of the index 0 is the resource block of the index 6 * N un and the index of the resource block is equal to or more than N ref , The resource block given by the smallest integer value.
  • N un is an integer.
  • a block indicated by a vertical line in FIG. 9B indicates a resource block of the index X start .
  • the resource block of index X start corresponding to the lowest frequency region among the RBGs of index 0 is the resource block of the resource block given by shifting from the resource block of index 0 by a multiple of six resource blocks.
  • the resource block may be given by a minimum integer under a condition that the index of the resource block is equal to or more than Nref .
  • the resource allocation for the control resource set may be given based at least on the resource block at index N ref .
  • the resource block with index N ref may be given based on a reference point of the resource grid.
  • the resource block of the index N ref may be equal to a reference point of the resource grid.
  • the reference point of the resource grid may be given at least based on a subcarrier spacing setting ⁇ associated with the control resource set. For example, if the setting mu subcarrier interval associated with the control resource set is mu 1, the reference point of the resource grid may be a reference point of the resource grid 7101. Further, when the setting mu subcarrier interval associated with the control resource set is mu 2, the reference point of the resource grid may be a reference point of the resource grid 7102.
  • the setting ⁇ of the subcarrier interval related to the control resource set may be the setting ⁇ of the subcarrier interval related to the PDCCH transmitted in the control resource set.
  • the setting ⁇ of the subcarrier interval related to the control resource set may be the setting ⁇ of the subcarrier interval set in BWP including an upper layer parameter used for setting the control resource set.
  • the subcarrier interval setting ⁇ associated with the control resource set may be the subcarrier interval setting ⁇ associated with the BWP to which the control resource set is mapped.
  • a first aspect of the present invention is a terminal device, comprising: a receiving unit that monitors a PDCCH in a control resource set, wherein a resource block configuring the control resource set is based on a parameter of a first upper layer.
  • the index of the resource block corresponding to the lowest frequency domain among the set of resource blocks corresponding to the bit indicated by the parameter of the first upper layer is set to a subcarrier interval related to the control resource set. is given based on a second upper layer parameter indicating the reference point of the resource grid for ⁇ .
  • a second aspect of the present invention is a base station apparatus, comprising: a transmission unit that transmits a PDCCH in a control resource set, wherein a resource block configuring the control resource set is a first upper layer
  • the index of the resource block corresponding to the lowest frequency region among the set of resource blocks corresponding to the bit indicated by the parameter of the first upper layer is provided based on the parameters of the control resource set. It is provided based on a parameter of the second upper layer indicating a reference point of the resource grid for the setting ⁇ of the carrier interval.
  • the program operating on the base station device 3 and the terminal device 1 according to the present invention controls the CPU (Central Processing Unit) and the like (the computer causes the computer to function) so as to realize the functions of the above-described embodiment according to the present invention.
  • Program The information handled by these devices is temporarily stored in a RAM (Random Access Memory) at the time of processing, and thereafter stored in various ROMs such as a Flash ROM (Read Only Memory) or an HDD (Hard Disk Drive). Reading, correction, and writing are performed by the CPU as necessary.
  • 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 the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read and executed by a computer system.
  • the “computer system” here is a computer system built in the terminal device 1 or the base station device 3 and includes an OS and hardware such as peripheral devices.
  • the “computer-readable recording medium” refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, and a CD-ROM, and a storage device such as a hard disk built in a computer system.
  • the "computer-readable recording medium” is a medium that dynamically holds the program for a short time, such as a communication line for transmitting the program through a network such as the Internet or a communication line such as a telephone line,
  • a program holding a program for a certain period of time such as a volatile memory in a computer system serving as a server or a client, may be included.
  • the above-mentioned program may be for realizing a part of the above-mentioned functions, or may be for realizing the above-mentioned functions in combination with a program already recorded in a computer system.
  • the base station device 3 in the above-described embodiment can also be realized as an aggregate (device group) including a plurality of devices.
  • Each of the devices included in 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. What is necessary is that the device group has only one kind of each function or each function block of the base station device 3.
  • the terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.
  • the base station device 3 in the above-described embodiment may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or an NG-RAN (NextGen RAN, NR RAN). Further, the base station device 3 in the above-described embodiment may have some or all of the functions of the upper node for the eNodeB and / or gNB.
  • EUTRAN Evolved Universal Terrestrial Radio Access Network
  • NG-RAN NextGen RAN, NR RAN
  • part or all of the terminal device 1 and the base station device 3 in the above-described embodiment may be typically realized as an LSI which is 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 formed into a chip, or a part or all may be integrated and formed into a chip.
  • the method of circuit integration is not limited to an LSI, and may be realized by a dedicated circuit or a general-purpose processor. Further, in the case where a technology for forming an integrated circuit that replaces the LSI appears due to the progress of the semiconductor technology, an integrated circuit based on the technology can be used.
  • the terminal device is described as an example of the communication device.
  • the present invention is not limited thereto, and a stationary or non-movable electronic device installed indoors and outdoors,
  • the present invention can be applied to a terminal device or a communication device such as an AV device, a kitchen device, a cleaning / washing device, an air conditioner, an office device, a vending machine, and other living devices.

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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 pourvu d'une unité de réception qui surveille un PDCCH dans un ensemble de ressources de commande comprenant : des blocs de ressources formant l'ensemble de ressources de commande attribués sur la base d'un premier paramètre de couche de niveau supérieur; et un indice du bloc de ressources correspondant au domaine de fréquence le plus bas, parmi un ensemble de blocs de ressources correspondant à des bits indiqués par le premier paramètre de couche de niveau supérieur, attribué sur la base d'un second paramètre de couche de niveau supérieur indiquant un point de référence d'une grille de ressource pour un réglage μ d'un espacement de sous-porteuse associé à l'ensemble de ressources de commande.
PCT/JP2019/029041 2018-08-07 2019-07-24 Dispositif terminal, dispositif de station de base et procédé de communication Ceased WO2020031699A1 (fr)

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