JP2020025182A - Terminal device, base station device, and communication method - Google Patents

Abstract

To provide a base station device efficiently performing communication, and a communication method used for the base station device.SOLUTION: A terminal device includes a receiver monitoring a PDCCH in a control resource set. In the terminal device, a resource block constituting the control resource set is given based on parameters of a first upper layer, and an index of a resource block corresponding to the lowest frequency range among the set of resource blocks corresponding to a bit indicated by parameters of the first upper layer is given based on parameters of a second upper layer indicating a reference point of a resource grid for a setting μ of a subcarrier spacing related to the control resource set.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a terminal device, a base station device, and a communication method.

Radio access method and radio network of cellular mobile communication (hereinafter, "Long Term Evolution (LTE)" or "EUTRA: Evolved Universal T"
errestrial Radio Access ". ) Is the third Generation Partnership Project (3GPP: has been studied in 3 ^rd Generation Partnership Project). In LTE, a base station device is an eNodeB (evolved NodeB), and a terminal device is a UNodeB.
It is also called E (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.

In 3GPP, the next-generation standard (NR: New Radio) is studied in order to propose to IMT (International Mobile Telecommunication) -2020, which is a standard for a next-generation mobile communication system formulated by the International Telecommunication Union (ITU). (Non-Patent Document 1). The NR is required to satisfy the requirements supposing three scenarios of enhanced mobile broadband (eMBB), massive machine type communication (mmmTC), and ultra reliable and low latency communication (URLLCL) in a single technology framework. I have.

"New SID proposal: Study on New Radio Access Technology", RP-160671, NTT docomo, 3GPP TSG RAN Meeting # 71, Goteborg, Sweden, 7th-10th March, 2016.

  The present invention provides a terminal device that communicates efficiently, a communication method used for the terminal device, a base station device that communicates efficiently, and a communication method used for the base station device.

  (1) 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 μ.

(2) 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 μ.

  (3) 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 μ of the subcarrier interval.

  (4) 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 μ of the subcarrier interval to be performed.

  According to the present invention, the terminal device can perform communication 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 μ, 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.

  Hereinafter, embodiments of the present invention will be described.

  In the drawings attached to this specification, a term expressed as XXX # Y may be interpreted as XXX of index Y.

  FIG. 1 is a conceptual diagram of a wireless communication system according to one aspect of the present embodiment. In FIG. 1, the wireless communication system includes terminal devices 1A to 1C and a base station device 3. Hereinafter, the terminal devices 1A to 1C are also referred to as terminal devices 1.

The base station device 3 may be configured to include one or both of an MCG (Master Cell Group) and an SCG (Secondary Cell Group). The MCG is a group of serving cells including at least a 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 composed of a serving cell on a next-generation standard (NR: New Radio).

  Hereinafter, the frame configuration will be described.

In the wireless communication system according to one aspect of the present embodiment, at least OFDM (Orthogonal Frequency Division Multiplex) is used. An OFDM symbol is a unit of the time domain of OFDM. An OFDM symbol includes at least one or more subcarriers. OFDM symbols are converted to time-continuous signals in baseband signal generation. In the downlink, at least CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplex) is used. In the uplink, CP-OFDM or 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 subcarrier interval (SCS: SubCarrier Spacing) is the subcarrier interval Δf = 2 ^μ · 1
May be provided by 5 kHz. For example, the subcarrier spacing configuration μ may be set to 0, 1, 2, 3, 4, and / or 5. For a certain BWP (BandWidth Part), the setting μ of the subcarrier interval may be given by an upper layer parameter.

In the wireless communication system according to an aspect of the present embodiment, a time unit (time unit) _Tc is used to represent the length of the time domain. The time unit T _c may be given by T _c = 1 / (Δf _max · N _f ). Δf _max may be the maximum value of the subcarrier interval supported in the wireless communication system according to an aspect of the present embodiment. Δf _max may be Δf _max = 480 kHz. N _f may be N _f = 4096. The constant κ is κ = Δf _max · N _f / (Δf _ref N _{f, ref} ) = 64. Δf _ref may be 15 kHz. N _{f, ref} may be 2048.

The constant κ may be a value indicating the relationship between the reference subcarrier interval and _Tc . The constant κ may be used for subframe length. The number of slots included in the subframe may be given based at least on the constant κ. Δf _ref is a reference subcarrier interval, and 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 Δf. That is, the frame setting may be given regardless of μ. The length of the subframe may be given regardless of the subcarrier interval Δf. That is, the setting of the subframe may be given regardless of μ.

For setting μ of a certain subcarrier interval, the number and index of slots included in a subframe may be given. For example, 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. For the setting μ of the subcarrier interval, 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. C
The P 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 μ of a subcarrier interval, and a CP setting according to an aspect of the present embodiment. In FIG. 2A, for example, when the setting μ of the subcarrier interval is 2 and the CP setting is a normal CP (normal cyclic prefix), N ^slot _symb = 14, N ^{frame, μ} _slot = 40, N ^{subframe, μ} _slot = 4. In FIG. 2B, for example, when the setting μ of the subcarrier interval is 2, and the CP setting is an extended CP (extended cyclic prefix), N ^slot _symb = 12, N ^{frame, μ} _slot = 40, N ^{subframe, μ} _slot = 4.

  Hereinafter, physical resources will be described.

An antenna port is defined by the fact that the channel on which a symbol is transmitted on one antenna port can be estimated from the channel on which other symbols are transmitted on the same antenna port. If the large scale property of the 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, Doppler spread, Doppler shift, average gain, average delay, and beam parameters (spatial Rx parameters). At least some or all of them may be included. When the first antenna port and the second antenna port are QCL with respect to the beam parameter, 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. 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, μ} _{grid, x} N ^RB _sc subcarriers and N ^{subframe, μ} _symb OFDM symbols is provided for setting a subcarrier interval and setting a carrier. N ^{size, μ} _{grid, x} may indicate the number of resource blocks provided for setting μ of the subcarrier interval for carrier x. N ^{size, μ} _{grid, x} may indicate the bandwidth of the carrier. N ^{size, μ} _{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 μ 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). Hereinafter, a set of parameters including at least part or all of the antenna port p, the setting μ 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.

  In the downlink, a carrier included in a serving cell is referred to as a downlink carrier (or a downlink component carrier). In the uplink, 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. For a first set of radio parameters, 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 ). Index _{k sc} in the frequency domain represents any of the values of ^N μ ^_RB N _{RB sc} -1 0. N ^μ _RB may be the number of resource blocks given for setting μ of the subcarrier interval. N ^μ _RB may be N ^{size, μ} _{grid, x} . N ^RB _sc is the number of subcarriers included in the resource block, and N ^RB _sc = 12. 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. In the resource grid of FIG. 3, the horizontal axis is the index l _sym in the time domain, and the vertical axis is the index k _sc in the frequency domain. In one subframe, the frequency domain resource grid including ^N μ ^_RB N _{RB sc} subcarriers. In one subframe, the time domain of the resource grid may include 14.2 ^μ 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 configured for each of the serving cells. One or more uplink BWPs may be configured for each of the serving cells.

  One downlink BWP among one or a plurality of downlink BWPs set for the serving cell may be set as the 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.

  In the active downlink BWP, a DL-SCH may be received. In the active downlink BWP, the PDCCH may be monitored. In the active downlink BWP, a PDSCH may be received.

  DL-SCH is not received in the inactive downlink BWP. In the inactive downlink BWP, the PDCCH is not monitored. No CSI for inactive downlink BWP is reported.

  Out of one or a plurality of downlink BWPs set for the serving cell, two or more downlink BWPs may not be set as the active downlink BWP.

  One uplink BWP among one or a plurality of uplink BWPs set for the serving cell 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.

  In the active uplink BWP, the UL-SCH may be transmitted. In the active uplink BWP, the PUCCH may be transmitted. In the active uplink BWP, the PRACH may be transmitted. In the active uplink BWP, the SRS may be transmitted.

  In the inactive uplink BWP, the UL-SCH is not transmitted. PUCCH is not transmitted in the inactive uplink BWP. In the inactive uplink BWP, the PRACH is not transmitted. In the inactive uplink BWP, no SRS is transmitted.

  Out of one or a plurality of uplink BWPs set for the serving cell, two or more uplink BWPs may not be set as the active uplink BWP.

The parameters of the upper layer are parameters included in the signal of the upper layer. The signal of the upper layer may be RRC (Radio Resource Control) signaling or MAC CE (Medium Access Control Control Element). Here, the signal of the upper layer is RR
It may be a signal of the C layer or a signal of the MAC layer.

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.

The 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

For example, MIB (Master Information Block) and SIB (System Information
Block) may be included in common RRC signaling. Also, 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. Also, 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.

The SIB may indicate at least a time index of an SS (Synchronization Signal) block. An SS block (SS block) is 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.

  The common RRC parameter and the dedicated RRC parameter are also called upper layer parameters.

  Hereinafter, physical channels and physical signals according to various aspects of the present embodiment will be described.

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 for transmitting 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). -Part or all of HARQ-ACK (Hybrid Automatic Repeat request Acknowledgment) information corresponding to -Shared Channel, PDSCH: Physical Downlink Shared Channel.

  Uplink control information may be multiplexed on the 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 a plurality of transport blocks may be that the HARQ-ACK bit corresponds to a PDSCH including the one or a plurality of 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.

A scheduling request (SR: Scheduling Request) may be at least used 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 of one or more SR configurations. 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), and 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 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 some 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.

A 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 Reference Signals Received Power (RSRP).

  The index of the channel state information report may be given by an upper layer parameter.

  PUCCH supports PUCCH formats (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.

The 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 some or all of the 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. 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.

In FIG. 1, 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 transmission of PUSCH and / or PUCCH. UL
DMRS is multiplexed with PUSCH or PUCCH. The base station apparatus 3 may use UL DMRS to perform propagation path correction on PUSCH or PUCCH. Hereinafter, transmitting the PUSCH and the UL DMRS related to the PUSCH together is simply referred to as transmitting the PUSCH. Hereinafter, 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 the transmission of PUSCH or PUCCH. 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.

  The UL PTRS may be a reference signal used at least for phase tracking. A UL PTRS may be associated with a UL DMRS group that includes at least an antenna port used for one or more UL DMRSs. The association between the UL PTRS and the UL DMRS group may be that part or all of the antenna port included in the UL PTRS and the antenna port included in the UL DMRS group is at least QCL. The UL DMRS group may be identified based at least on the antenna port having the smallest index in the UL DMRS included in the UL DMRS group. The UL PTRS may be mapped to the lowest index antenna port in one or more antenna ports to which one codeword is mapped. The 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 the UL PTRS is mapped may be given based at least on the downlink control information.

In FIG. 1, 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)

  The PBCH is used at least for transmitting the MIB and / or the PBCH payload. 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). 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 referred to as a downlink assignment or a 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.
1A) DCI format specific field (Identifier for DCI formats field)
1B) Frequency domain resource assignment field (Frequency domain resource assignment)
field)
1C) Time domain resource assignment field
)
1D) Frequency hopping flag field
1E) MCS field (MCS field: Modulation and Coding Scheme field)
1F) First CSI request field

  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 according to the DCI format including the frequency domain resource allocation field.

  The time domain resource allocation field may be at least used to indicate a 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 the 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 at least used 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.
2A) DCI format specific field 2B) Frequency domain resource allocation field 2C) Time domain resource allocation field 2D) Frequency hopping flag field 2E) MCS field 2F) Second CSI request field (Second CSI request field)
2G) BWP field

  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 at least used 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.
3A) DCI format specific field (Identifier for DCI formats field)
3B) Frequency domain resource assignment field (Frequency domain resource assignment)
field)
3C) Time domain resource assignment field
)
3D) Frequency hopping flag field
3E) MCS field (MCS field: Modulation and Coding Scheme field)
3F) First CSI request field
3G) Timing indication field from PDSCH to HARQ feedback (PDSCH to
HARQ feedback timing indicator field)
3H) PUCCH resource indicator field

  The timing indication field from the PDSCH to the HARQ feedback may be a field indicating the timing K1. When the index of the slot including the last OFDM symbol of the PDSCH is slot n, the index of the slot including the PUCCH or PUSCH including at least the HARQ-ACK corresponding to the transport block included in the PDSCH is n + K1, and Is also good. When 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 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.
4A) DCI format specific field (Identifier for DCI formats field)
4B) Frequency domain resource assignment field
field)
4C) Time domain resource assignment field
)
4D) Frequency hopping flag field
4E) MCS field (MCS field: Modulation and Coding Scheme field)
4F) First CSI request field
4G) Timing indication field from PDSCH to HARQ feedback (PDSCH to
HARQ feedback timing indicator field)
4H) PUCCH resource indicator field
4J) BWP field

  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.

  In various aspects of the present embodiment, 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. Further, 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 more 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 may 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 resources). The control resource set may be configured by discontinuous resources (distributed resources).

  In the frequency domain, the unit of mapping of the control resource set may be a resource block. For example, in the frequency domain, the unit of mapping of the control resource set may be six resource blocks. In the time domain, the unit of mapping of the control resource set may be an OFDM symbol. For example, in the time domain, 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 provided based on at least an upper layer signal and / or downlink control information.

One control resource set is a 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. For example, 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.

  One control resource set may be a 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.

  The 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 includes one or a plurality of PDCCH candidates at an aggregation level.
Or you may comprise including two or more. 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 space sets in a slot 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 space,
It may be any of 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 area.

Type 0 PDCCH common search area, type 0a PDCCH common search area, type 1PD
The CCH common search area, type 2 PDCCH common search area, and type 3 PDCCH common search area are also called 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. For each of the search area sets, 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 is a CRC (Cyclic Redundancy) scrambled by an SI-RNTI (System Information-Radio Network Temporary Identifier).
Check) may be used at least for the DCI format with sequences. 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 a random access-radio network temporary identifier (RA-RNTI) and / or a CRC sequence scrambled by a temporary common-radio network temporary identifier (TC-RNTI). It may be used at least for the DCI format. 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 a 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 in 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 parameter PagingSearchSpace of the upper layer may be included in the parameter PDCCH-ConfigCommon of the upper layer.

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 Temporary Identifier). The C-RNTI may be provided at least based on a PDSCH (also referred to as 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.

  When the C-RNTI is provided to the terminal device 1, the type-0 PDCCH common search region, the type-0a PDCCH common search region, the type-1 PDCCH common search region, and / or the type-2 PDCCH common search region are a CRC scrambled by the C-RNTI. It may be used at least for the DCI format with sequences.

  When the terminal device 1 is provided with the C-RNTI, the upper layer parameter PDCCH-ConfigSIB1, the upper layer parameter SearchSpaceZero, the upper layer parameter SearchSpaceSIB1, the upper layer parameter SearchSpaceOtherSystemInformation, the upper layer parameter Ra-Sar, the upper layer parameter Ra-Sar, The search area set given at least based on any of the parameters PagingSearchSpace may be at least used for the DCI format with the CRC sequence scrambled with C-RNTI.

  The common control resource set may include at least one or both of CSS and USS. The dedicated control resource set may include at least one or both of CSS and USS.

The physical resources in the search area are control channel constituent units (CCE: Control Channel Element)
It consists of. The CCE is composed of six resource element groups (REG: Resource Element Group). REG is one OFDM of one PRB (Physical Resource Block)
It may be constituted by symbols. That is, the REG may be configured to include 12 resource elements (RE: Resource Element). PRB is simply RB (Resource)
Block: resource block).

  PDSCH is used at least for transmitting transport blocks. 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.

In FIG. 1, 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.
・ Synchronization signal (SS)
・ DL DMRS (DownLink DeModulation Reference Signal)
・ CSI-RS (Channel State Information-Reference Signal)
・ DL PTRS (DownLink Phase Tracking Reference Signal)
・ TRS (Tracking Reference Signal)

  The synchronization signal is used by the terminal device 1 to synchronize in the downlink frequency domain and / or the time domain. The synchronization signal includes a PSS (Primary Synchronization Signal) and an 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 μ 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 relates 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 in order to perform channel correction on the PBCH, the PDCCH, or the PDSCH. Hereinafter, transmitting the PBCH and the DL DMRS associated with the PBCH together is referred to as transmitting the PBCH. Also, the fact that the PDCCH and the DL DMRS related to the PDCCH are transmitted together is simply referred to as the transmission of the PDCCH. Also, 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 called DL DMRS for PBCH. DL DMRS associated with PDSCH is also referred to as DL DMRS for PDSCH. A DL DMRS associated with a PDCCH is also referred to as a DL DMRS associated with a PDCCH.

  The DL DMRS may be a reference signal individually set in the terminal device 1. The DL DMRS sequence may be given based at least 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 transmitted separately for PDCCH and / or PDSCH.

  The 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.

  The 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.

  A DL PTRS may be associated with a DL DMRS group that includes at least an antenna port used for one or more DL DMRSs. The association between the DL PTRS and the DL DMRS group may be that some or all of the antenna ports of the DL PTRS and the antenna ports included in the DL DMRS group are at least QCLs. The DL DMRS group may be identified based at least on the antenna port with the lowest index in the DL DMRS included in the DL DMRS group.

  The 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 called 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) and DL-SCH (Downlink-Shared CHannel) are transport channels. 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. In the MAC layer, HARQ (Hybrid Automatic Repeat reQuest) control is performed for each transport block. The transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, transport blocks are mapped to codewords, and modulation processing is performed for each codeword.

The base station device 3 and the terminal device 1 exchange (transmit and receive) signals of an upper layer in an upper layer. For example, 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. . Further, the base station device 3 and the terminal device 1 may transmit and receive a MAC CE (Control Element) in the MAC layer. Here, RRC signaling and / or MA
CCE is also referred to as higher layer signaling.

The PUSCH and PDSCH may be at least used for transmitting RRC signaling and / or MAC CE. Here, 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 signaling or UE specific signaling) dedicated to a certain terminal device 1. 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.

BCCH (Broadcast Control CHannel), CCCH (Common Control CHannel), and DCCH (Dedicated Control CHannel) are logical channels. For example,
BCCH is an upper layer channel used for transmitting MIB. The CCCH (Common Control CHannel) is an upper layer channel used to transmit information common to a plurality of terminal devices 1. Here, the CCCH may be used, for example, for the terminal device 1 that is not connected to the RRC. The DCCH (Dedicated Control CHannel) is a higher-layer channel used at least to transmit dedicated control information to the terminal device 1. Here, the DCCH may be used, for example, for the terminal device 1 connected to the RRC.

  A BCCH in a logical channel may be mapped to a BCH, DL-SCH, or UL-SCH in a transport channel. A 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 the UL-SCH in the transport channel.

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

  Hereinafter, a configuration example of the terminal device 1 according to an aspect of the present embodiment will be described.

FIG. 5 is a schematic block diagram illustrating a configuration of the terminal device 1 according to an aspect of the present embodiment. As illustrated, 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 (Radio Frequency) 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 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 convergence protocol (PDCP) layer, a radio link control (RLC) layer, and an RRC layer.

  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 the signal received via the antenna unit 11 into a baseband signal by quadrature demodulation (down conversion), 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 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 converts a frequency domain signal. Extract.

The baseband unit 13 generates an OFDM symbol by performing an inverse fast Fourier transform (IFFT) on the data, adds a CP to the generated OFDM symbol, generates a baseband digital signal, 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 excess 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.

  Hereinafter, a configuration example of the base station device 3 according to an aspect of the present embodiment will be described.

  FIG. 6 is a schematic block diagram illustrating the configuration of the base station device 3 according to one aspect of the present embodiment. As illustrated, 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. . Further, 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 a description thereof will be 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. A common resource block (Common resource block) 7100 is a subcarrier interval setting μ ₁
Is a common resource block for. 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. Of 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 at least on one or both of the parameters included in the MIB and / or the scrambling of the DMRS associated with the PBCH that includes 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. The subcarrier may correspond to a subcarrier having a subcarrier interval setting μ = 0.

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. For example, 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. For example, 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. FIG. 7 shows an example of μ ₁ = 0. 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 _7
011 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.

  The offset 7013 shown in FIG. 7 is used at least to indicate the BWP 7003. Resource blocks indicated by horizontal lines in FIG. 7 indicate reference points of BWP7003. For example, 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. For example, 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. FIG. 7 shows an example of μ ₂ = 1. 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 μ ₂ of the subcarrier interval of the carrier 7002.

  The offset 7014 shown in FIG. 7 is used at least to indicate BWP 7004. A resource block indicated by a dot pattern in FIG. 7 indicates a reference point of BWP7004. For example, 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 the 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. Here, the plain block is a resource element that does not correspond to the scramble sequence r (x) of the DMRS related to the PDCCH. Here, x is an integer of 0 or more. Further, 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.

In FIG. 8, 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. In mapping of the DMRS scramble sequence r (x) related to the PDCCH 8001, 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. In the mapping of the scrambling sequence r (x) of the DMRS related to the PDCCH 8001 to the setting μ of the subcarrier interval, the reference point of the resource element corresponding to the scrambling sequence r (x) of the DMRS related to the PDCCH is the subcarrier Subcarrier # 0 of the common resource block with index 0 for the interval setting μ 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. Further, scramble sequence r (x) of DMRS related to PDCCH 8001 for subcarrier interval setting μ may be mapped based on the index of the common resource block for subcarrier interval setting μ. That is, the point corresponding to k _sc = 0 in FIG. 8 may coincide with the point 7000.

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 by k _sc = n ^RB _index N ^RB _sc + 4k _{sc_tmp} +1. Here, 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} . ^{_{k sc = n RB index N RB}} sc + 4k sc_tmp +1 to subcarrier index _{k sc} given based corresponds to the positive slope of subcarriers shown in FIG.

The scramble sequence r (0) corresponds to a resource element of k _sc = 1, the scramble sequence r (0) corresponds to a resource element of k _sc = 5, and the scramble sequence r (0) has a k _sc = 9. Resource element. Resource elements of k _sc = 1, 5, and 9 are not included in the REG configuring PDCCH 8001.

The scramble sequence r (n ₁ +0) corresponds to a resource element of k _sc = k ₁ + 1 = (n ₁ -1) * N ^RB _sc +1, and the scramble sequence r (n ₁ +1) has k _sc = k ₁ + 5 = (n ₁ -1) * N ^RB _sc +5 resource elements, and the scramble sequence r (n ₁ +2) is k _sc = k ₁ + 9 = (n ₁ -1) * N ^RB _sc +9 resources Corresponds to the element. Based on the fact that resource elements of k _sc = k ₁ + 1 = (n ₁ -1) * N ^RB _sc +1 are included in the REG configuring PDCCH 8001, scramble sequence r (n ₁ +0) is k _sc = k ₁ + 1 = (n ₁ -1) * N ^RB _sc +1 may be mapped to the resource element. Based on the fact that resource elements of k _sc = k ₁ + 5 = (n ₁ -1) * N ^RB _sc +5 are included in the REG configuring the PDCCH 8001, the scramble sequence r (n ₁ +1) is k _sc = k ₁ + 5 = (n ₁ -1) * N ^RB _sc +5 may be mapped to the resource element. k _sc = k ₁ + 9 = (n ₁ -1) * N ^RB _sc +9 The scramble sequence r (n ₁ +2) is k _sc = k ₁ based on the fact that the resource element of N ^RB _sc +9 is included in the REG configuring PDCCH 8001. + 9 = (n ₁ -1) * N ^RB _{sc It} may be mapped to +9 resource elements.

The scramble sequence r (n ₂ +0) corresponds to a resource element of k _sc = k ₂ + 1 = (n ₂ -1) * N ^RB _sc +1, and the scramble sequence r (n ₂ +1) has k _sc = k ₂ + 5 = (n ₂ -1) * N ^RB _sc +5 resource elements, and the scramble sequence r (n ₂ +2) is k _sc = k ₂ + 9 = (n ₂ -1) * N ^RB _sc +9 resources Corresponds to the element. Based on the fact that the resource element of k _sc = k ₂ + 1 = (n ₂ −1) * N ^RB _sc +1 is included in the REG configuring PDCCH 8001, the scramble sequence r (n ₂ +0) is k _sc = k ₂ + 1 = (n ₂ −1) * N ^RB _sc +1 may be mapped to the resource element. Based on the fact that resource elements of k _sc = k ₂ + 5 = (n ₂ −1) * N ^RB _sc +5 are included in the REG configuring PDCCH 8001, the scramble sequence r (n ₂ +1) is k _sc = k ₂ + 5 = (n ₂ −1) * N ^RB _sc +5 may be mapped to the resource element. Based on the fact that resource elements of k _sc = k ₂ + 9 = (n ₂ -1) * N ^RB _sc +9 are included in the REG configuring PDCCH 8001, scramble sequence r (n ₂ +2) is k _sc = k ₂ + 9 = (n ₂ −1) * N ^RB _sc +9 may be mapped to the resource element.

That is, the scramble sequence r (3 * n ^RB _index + k _{sc_tmp} ) corresponds to k _sc = n ^RB _index * N ^RB _sc + 4 * k _{sc_tmp} +1.

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. In FIG. 9, 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.

Here, the maximum bandwidth N _max of the carrier may be 275 resource blocks. That is, when N _RBG = 45, the value obtained by multiplying N _RBG by the number of resource blocks per RBG (45 * 6 = 270) is the maximum number of RBGs that can be mapped in the maximum bandwidth N _max of the carrier. May correspond to a value. Here, all the mappable RBGs may be configured by six resource blocks. That is, when N _RBG = 45, a value (45 * 6 = 270) obtained by multiplying N _RBG by the number of resource blocks per _RBG may correspond to floor (N _max / 6). Here, floor (A) is a floor function. floor (A) may be a function that outputs the largest integer that does not exceed A.

When N _RBG = 46, the value obtained by multiplying N _RBG by the number of resource blocks per RBG (46 * 6 = 276) is the maximum number of RBGs that can be mapped in the maximum bandwidth N _max of the carrier. May correspond to a value. Here, at least one of the mappable RBGs may be configured by less than 6 resource blocks. That is, when N _RBG = 46, the value obtained by multiplying N _RBG by the number of resource blocks per RBG (46 * 6 = 276) may correspond to ceil (N _max / 6). Here, 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 at 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. In Case 1, 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 .

In case 1, the resource block of the index X _RB configuring the _RBG of the index X _RBG may satisfy the relationship of X _RBG = floor ((X _RB −N _ref ) / 6).

FIG. 9B shows case 2 of the resource allocation method for the control resource set. In Case 2, blocks indicated by oblique lines rising to the right indicate resource blocks with index 0. In Case 2, 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. Here, N _un is an integer. In Case 2, an example in which N _un is 1 is shown. A block indicated by a vertical line in FIG. 9B indicates a resource block of the index X _start . That is, in case 2, 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 .

In Case 2, the index X _{start of the} resource block mapped to the lowest frequency region of RBG # 0 may be given by X _start = 6 * ceil (N _ref / 6).

In Case 2, the index X _RB of the resource block constituting the _RBG #X _RBG of the index X _RBG may satisfy the relationship of X _RBG = floor ((X _RB −X _start ) / 6).

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 μ 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 μ of the subcarrier interval related to the control resource set may be the setting μ of the subcarrier interval related to the PDCCH transmitted in the control resource set. The setting μ of the subcarrier interval related to the control resource set may be the setting μ of the subcarrier interval set in BWP including an upper layer parameter used for setting the control resource set. The subcarrier interval setting μ associated with the control resource set may be the subcarrier interval setting μ associated with the BWP to which the control resource set is mapped.

  Hereinafter, aspects of various devices according to one aspect of the present embodiment will be described.

  (1) In order to achieve the above object, the embodiment of the present invention has taken the following measures. That is, 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 region 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 μ.

  (2) Also, 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 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 parameter 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 μ of the carrier interval.

The program that operates on the base station device 3 and the terminal device 1 according to the present invention is a program (for causing a computer to function) that controls a CPU (Central Processing Unit) and the like so as to realize the functions of the above-described embodiment according to the present invention. Program). Information handled by these devices is temporarily stored in a random access memory (RAM) at the time of processing, and thereafter, various types of ROMs such as a flash ROM (read only memory) or an HD
The data is stored in a D (Hard Disk Drive), and is read, corrected, and written by the CPU as needed.

  The terminal device 1 and a part of the base station device 3 in the above-described embodiment may be realized by a computer. In that case, 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.

  Here, the “computer system” 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, and a CD-ROM, and a storage device such as a hard disk built in a computer system.

Further, the "computer-readable recording medium" is a medium that holds the program dynamically 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, In this case, 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. Further, 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.

  Further, the base station device 3 in the above-described embodiment can 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. It is only necessary that the device group has each function or each function block of the base station device 3. Further, the terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.

Further, 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 the gNB.

  Further, a 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 chip set. 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.

  Further, in the above-described embodiment, the terminal device is described as an example of the communication device. However, the present invention is not limited to this, and a stationary or non-movable electronic device installed indoors and outdoors, For example, 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.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the embodiments, and includes a design change or the like without departing from the gist of the present invention. Further, the present invention can be variously modified within the scope shown in the claims, and the technical scope of the present invention includes embodiments obtained by appropriately combining technical means disclosed in different embodiments. It is. The elements described in each of the above embodiments also include a configuration in which elements having the same effects are replaced with each other.

1 (1A, 1B, 1C) Terminal device 3 Base station device 10, 30 Radio transmitting / receiving unit 11, 31 Antenna unit 12, 32 RF unit 13, 33 Baseband unit 14, 34 Upper layer processing unit 15, 35 Medium access control layer Processing units 16, 36 Radio resource control layer processing units 6998, 6999, 7000 Points 7001, 7002 Carriers 7003, 7004 BWP
7011, 7012, 7013, 7014 offset 7100, 7200 common resource blocks 7101, 7102 resource grid 8001 PDCCH

Claims (4)

A receiving unit that monitors the PDCCH in the control resource set,
Resource blocks constituting the control resource set are given based on parameters 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 a resource for the subcarrier interval setting μ related to the control resource set. A terminal device provided based on a parameter of a second upper layer indicating a reference point of the grid. A transmitting unit that transmits the PDCCH in the control resource set,
Resource blocks constituting the control resource set are provided based on a first upper layer parameter,
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 the resource for the setting μ of the subcarrier interval related to the control resource set. A base station apparatus provided based on a parameter of a second upper layer indicating a reference point of a grid. A communication method used for a terminal device,
Monitoring the PDCCH in the control resource set,
Resource blocks constituting the control resource set are provided based on a first upper layer parameter,
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 the resource for the setting μ of the subcarrier interval related to the control resource set. A communication method provided based on a parameter of a second upper layer indicating a reference point of the grid. A communication method used for a base station device,
Transmitting a PDCCH in a control resource set,
Resource blocks constituting the control resource set are given based on parameters 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 the resource for the subcarrier interval setting μ related to the control resource set. A communication method provided based on a parameter of a second upper layer indicating a reference point of the grid.

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