JP2021029010A - Base station device, terminal device, and communication method - Google Patents

Abstract

To allow a terminal device and a base station device to efficiently communicate with each other.SOLUTION: A terminal device receives upper layer slot format setting information (first information), receives resource allocation information, transmits a PUSCH by each of a plurality of first resources, determines a plurality of second resources based on the first information and the resource allocation information, determines that a symbol set indicated as UL by at least one of the first information and the second information by each of the plurality of second resources is the first resource when monitoring of slot format setting DCI (second information) is set and the slot format setting DCI is detected, determines that the second resource only including a symbol indicated as UL by the first information is the first resource when the second information is not detected, and determines that the plurality of second resources are the plurality of first resources when monitoring of the second information is not set.SELECTED DRAWING: Figure 17

Description

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

Currently, LTE (Long Term Evolution)-Advanced Pro and NR (New Radio) in the Third Generation Partnership Project (3GPP) as wireless access methods and wireless network technologies for 5th generation cellular systems. Technology) has been studied and standards have been established (Non-Patent Document 1).

In the 5th generation cellular system, eMBB (enhanced Mobile BroadBand) that realizes high-speed and large-capacity transmission, URLLC (Ultra-Reliable and Low Latency Communication) that realizes low-latency and high-reliability communication, IoT (Internet of Things), etc. Three mMTC (massive Machine Type Communication), in which a large number of machine-type devices are connected, are required as assumed scenarios for services.

RP-161214, NTT DOCOMO, “Revision of SI: Study on New Radio Access Technology”, June 2016

An object of the present invention is to provide a terminal device, a base station device, and a communication method that enable efficient communication in the above-mentioned wireless communication system.

(1) In order to achieve the above object, the aspect of the present invention has taken the following measures. That is, the terminal device according to one aspect of the present invention receives an RRC message including a first setting information indicating whether each of the symbols for a certain period of time is a downlink symbol, an uplink symbol, or a flexible symbol. A receiver that receives the time resource allocation information of the physical uplink shared channel for the transport block on the physical downlink control channel, a determination unit that determines a plurality of first time resources, and the plurality of first times. Each of the resources includes a transmission unit that transmits the physical uplink shared channel, and the determination unit determines a plurality of second time resources based on the first setting information and the time resource allocation information. Then, the receiving unit is set to monitor the second setting information indicating the slot formats of the plurality of slots on the physical downlink control channel, and when the second setting information is detected, the plurality of settings are made. In each of the second time resources, a set of contiguous symbols represented as uplink symbols by at least one of the first setting information and the second setting information of the plurality of first time resources. When it is determined as one, the receiving unit is set to monitor the second setting information on the physical downlink control channel, and the second setting information is not detected, the plurality of said In each of the second time resources, the second time resource including only the symbol indicated as the uplink symbol by the first setting information is determined as one of the plurality of first time resources, and the reception When the unit is not set to monitor the second setting information on the physical downlink control channel, each of the plurality of second time resources is determined as each of the plurality of first time resources. ..

(2) Further, the base station device according to one aspect of the present invention is a base station device that communicates with a terminal device, and each of the symbols for a certain period of time is either a downlink symbol, an uplink symbol, or a flexible symbol. A transmitter that transmits an RRC message including the first setting information indicating the above and receives the time resource allocation information of the physical uplink shared channel for a certain transport block on the physical downlink control channel, and a plurality of first devices. The determination unit includes a determination unit for determining the time resource of the above and a reception unit for receiving the physical uplink shared channel in each of the plurality of first time resources, and the determination unit includes the first setting information and the said. A plurality of second time resources are determined based on the time resource allocation information, and the terminal device is set to monitor the second setting information indicating the slot format of the plurality of slots on the physical downlink control channel. If so, in each of the plurality of second time resources, the plurality of consecutive sets of symbols indicated as uplink symbols by at least one of the first setting information and the second setting information. When the terminal device is not set to monitor the second setting information on the physical downlink control channel, it is determined as one of the first time resources of the plurality of second time resources. Each is determined as each of the plurality of first time resources.

(3) Further, the communication method according to one aspect of the present invention is the communication method of the terminal device, and is the first indicating whether each of the symbols for a certain period is a downlink symbol, an uplink symbol, or a flexible symbol. The RRC message containing the setting information of is received, the time resource allocation information of the physical uplink shared channel for a certain transport block is received by the physical downlink control channel, a plurality of first time resources are determined, and the above The physical uplink shared channel is transmitted by each of the plurality of first time resources, the plurality of second time resources are determined based on the first setting information and the time resource allocation information, and the plurality of slots are determined. It is set to monitor the second setting information indicating the slot format of the physical downlink control channel, and when the second setting information is detected, in each of the plurality of second time resources, A set of consecutive symbols indicated as uplink symbols by at least one of the first setting information and the second setting information is determined as one of the plurality of first time resources, and the second setting information is used. When the setting information of the above is set to be monitored by the physical downlink control channel and the second setting information is not detected, in each of the plurality of second time resources, the first The second time resource containing only the symbol indicated as the uplink symbol by the setting information is determined as one of the plurality of first time resources, and the second setting information is monitored by the physical downlink control channel. If this is not set, each of the plurality of second time resources is determined as each of the plurality of first time resources.

(4) Further, the communication method in one aspect of the present invention is a communication method of a base station apparatus, and indicates whether each of the symbols for a certain period of time is a downlink symbol, an uplink symbol, or a flexible symbol. An RRC message containing the setting information of 1 is transmitted, the time resource allocation information of the physical uplink shared channel for a certain transport block is received by the physical downlink control channel, and a plurality of first time resources are determined. Each of the plurality of first time resources receives the physical uplink shared channel, determines a plurality of second time resources based on the first setting information and the time resource allocation information, and determines the terminal. The first setting in each of the plurality of second time resources when the device is configured to monitor the second configuration information indicating the slot format of the plurality of slots on the physical downlink control channel. A set of consecutive symbols represented as uplink symbols by at least one of the information and the second setting information is determined as one of the plurality of first time resources, and the terminal device is the second. When it is not set to monitor the setting information on the physical downlink control channel, each of the plurality of second time resources is determined as each of the plurality of first time resources.

According to the present invention, the base station device and the terminal device can efficiently communicate with each other.

It is a figure which shows the concept of the wireless communication system which concerns on embodiment of this invention. It is a figure which shows the example of the SS / PBCH block and SS burst set which concerns on embodiment of this invention. It is a figure which shows an example of the schematic structure of the uplink and the downlink slot which concerns on embodiment of this invention. It is a figure which showed the relationship in the time domain of the subframe, the slot, and the minislot which concerns on embodiment of this invention. It is a figure which shows an example of the slot or the subframe which concerns on embodiment of this invention. It is a figure which shows an example of the slot format table which concerns on embodiment of this invention. It is a figure which showed an example of the beamforming which concerns on embodiment of this invention. This is an example of a table showing a method for determining a resource allocation table applied to PUSCH according to the embodiment of the present invention. It is another example of the table which shows the method of determining the resource allocation table applied to PUSCH which concerns on embodiment of this invention. It is a figure which shows an example of PUSCH default table A which concerns on this embodiment. It is a figure which shows an example of PUSCH default table B which concerns on this embodiment. It is a figure which shows an example of the parameter structure of the RRC parameter PUSCH-TimeDomainRelocationAllocation according to the embodiment of the present invention. It is a figure which shows an example which calculates SLIV which concerns on embodiment of this invention. It is a figure which shows an example of the parameter structure of the RRC parameter PUSCH-TimeDomainRelocationAllocation2 according to the embodiment of the present invention. It is a figure which shows an example of the parameter structure of the RRC parameter PUSCH-TimeDomainRelocationAllocation3 which concerns on embodiment of this invention. It is a figure which shows an example of the uplink symbol which can be used for transmission of PUSCH which concerns on embodiment of this invention. It is a figure which shows the example of the time resource arrangement of PUSCH in the repeated transmission of PUSCH which concerns on embodiment of this invention. It is a figure which shows an example of the segmentation of PUSCH which concerns on embodiment of this invention. It is a figure which shows another example of the segmentation of PUSCH which concerns on embodiment of this invention. It is the schematic of the 1st frequency hopping which concerns on embodiment of this invention. It is the schematic of the 2nd frequency hopping which concerns on embodiment of this invention. It is a schematic block diagram which shows the structure of the terminal apparatus 1 which concerns on embodiment of this invention. It is a schematic block diagram which shows the structure of the base station apparatus 3 which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described.

FIG. 1 is a conceptual diagram of a wireless communication system according to the present embodiment. In FIG. 1, the wireless communication system includes a terminal device 1A, a terminal device 1B, and a base station device 3. Hereinafter, the terminal device 1A and the terminal device 1B will also be referred to as a terminal device 1.

The terminal device 1 is also referred to as a user terminal, a mobile station device, a communication terminal, a mobile device, a terminal, a UE (User Equipment), or an MS (Mobile Station). The base station apparatus 3 includes a radio base station apparatus, a base station, a radio base station, a fixed station, an NB (Node B), an eNB (evolved Node B), a BTS (Base Transceiver Station), a BS (Base Station), and an NR NB ( Also referred to as NR Node B), NNB, TRP (Transmission and Reception Point), and gNB. The base station device 3 may include a core network device. Further, the base station apparatus 3 may include one or a plurality of transmission / reception points 4 (transmission reception points). At least a part of the functions / processes of the base station apparatus 3 described below may be the functions / processes at each transmission / reception point 4 included in the base station apparatus 3. The base station apparatus 3 may serve the terminal apparatus 1 with the communicable range (communication area) controlled by the base station apparatus 3 as one or a plurality of cells. Further, the base station apparatus 3 may serve the terminal apparatus 1 with the communicable range (communication area) controlled by one or a plurality of transmission / reception points 4 as one or a plurality of cells. Further, the base station device 3 may divide one cell into a plurality of subregions (Beamed area) and serve the terminal device 1 in each subregion. Here, the subregions may be identified based on the beam index or precoding index used in beamforming.

In the present embodiment, the wireless communication link from the base station device 3 to the terminal device 1 is referred to as a downlink. In the present embodiment, the wireless communication link from the terminal device 1 to the base station device 3 is referred to as an uplink.

In FIG. 1, in wireless communication between the terminal device 1 and the base station device 3, orthogonal frequency division multiplexing (OFDM) including cyclic prefix (CP) and single carrier frequency division multiplexing (SC-) are performed. FDM: Single-Carrier Frequency Division Multiplexing (FDM), Discrete Fourier Transform Spread OFDM (DFT-S-OFDM), Multi-Carrier Code Division Multiplexing (MC-CDM) are used. May be good.

Further, in FIG. 1, in the wireless communication between the terminal device 1 and the base station device 3, the universal filter multi-carrier (UFMC: Universal-Filtered Multi-Carrier), the filter OFDM (F-OFDM: Filtered OFDM), and the window function are used. Multiplied OFDM (Windowed OFDM) and Filter-Bank Multi-Carrier (FBMC) may be used.

In the present embodiment, OFDM is described as a transmission method using an OFDM symbol, but the case where the other transmission methods described above is used is also included in the present invention.

Further, in FIG. 1, in the wireless communication between the terminal device 1 and the base station device 3, the above-mentioned transmission method in which CP is not used or zero padding is performed instead of CP may be used. Also, CP and zero padding may be added both forward and backward.

One aspect of this embodiment may be operated in carrier aggregation or dual connectivity with radio access technology (RAT) such as LTE and LTE-A / LTE-A Pro. At this time, some or all cells or cell groups, carriers or carrier groups (for example, primary cell (PCell: Primary Cell), secondary cell (SCell: Secondary Cell), primary secondary cell (PSCell), MCG (Master Cell Group) ), SCG (Secondary Cell Group), etc.). In addition, one aspect of the present embodiment may be used as a stand-alone operation. In dual connectivity operations, SpCell (Special Cell) is either MCG's PCell or SCG's PSCell, depending on whether the MAC (MAC: Medium Access Control) entity is associated with MCG or SCG, respectively. It is called. Unless it is a dual connectivity operation, SpCell (Special Cell) is called PCell. SpCell (Special Cell) supports PUCCH transmission and contention-based random access.

In this embodiment, one or more serving cells may be set for the terminal device 1. The plurality of serving cells set may include one primary cell and one or more secondary cells. The primary cell may be the serving cell in which the initial connection establishment procedure was performed, the serving cell in which the connection re-establishment procedure was initiated, or the cell designated as the primary cell in the handover procedure. Good. One or more secondary cells may be set when or after an RRC (Radio Resource Control) connection is established. However, the plurality of set serving cells may include one primary secondary cell. The primary secondary cell may be a secondary cell capable of transmitting control information on the uplink among one or a plurality of secondary cells in which the terminal device 1 is set. Further, a subset of two types of serving cells, a master cell group and a secondary cell group, may be set for the terminal device 1. The master cell group may consist of one primary cell and zero or more secondary cells. The secondary cell group may consist of one primary secondary cell and zero or more secondary cells.

TDD (Time Division Duplex) and / or FDD (Frequency Division Duplex) may be applied to the wireless communication system of the present embodiment. TD for all of multiple cells
A D (Time Division Duplex) system or an FDD (Frequency Division Duplex) system may be applied. Further, the cells to which the TDD method is applied and the cells to which the FDD method is applied may be aggregated. The TDD scheme may be referred to as Unpaired spectrum operation. The FDD method may be referred to as a Paired spectrum operation.

In the downlink of the present embodiment, the carrier corresponding to the serving cell is referred to as a downlink component carrier (or downlink carrier). In the uplink of the present embodiment, the carrier corresponding to the serving cell is referred to as an uplink component carrier (or uplink carrier). In the side link of the present embodiment, the carrier corresponding to the serving cell is referred to as a side link component carrier (or side link carrier). Downlink component carriers, uplink component carriers, and / or sidelink component carriers are collectively referred to as component carriers (or carriers).

The physical channel and the physical signal of this embodiment will be described.

In FIG. 1, the following physical channels are used in the wireless communication between the terminal device 1 and the base station device 3.

・ PBCH (Physical Broadcast CHannel)
-PDCCH (Physical Downlink Control CHannel)
・ PDSCH (Physical Downlink Shared CHannel)
-PUCCH (Physical Uplink Control CHannel)
-PUSCH (Physical Uplink Shared CHannel)
・ PRACH (Physical Random Access CHannel)

The PBCH is used to notify an important information block (MIB: Master Information Block, EIB: Essential Information Block, BCH: Broadcast Channel) including important system information required by the terminal device 1.

Further, the PBCH may be used to notify the time index within the period of the block of the synchronization signal (also referred to as the SS / PBCH block). Here, the time index is information indicating the synchronization signal in the cell and the index of the PBCH. For example, when transmitting an SS / PBCH block using the assumption of three transmission beams (transmission filter setting, pseudo-same position (QCL: Quasi Co-Location) regarding reception space parameters), the SS / PBCH block is set within a predetermined period or set. The time order within the cycle may be shown. Further, the terminal device may recognize the difference in the time index as the difference in the transmission beam.

The PDCCH is used for transmitting (or carrying) downlink control information (DCI) in downlink wireless communication (wireless communication from the base station device 3 to the terminal device 1). Here, one or more DCIs (which may be referred to as DCI format) are defined for the transmission of downlink control information. That is, the fields for downlink control information are defined as DCI and mapped to information bits. The PDCCH is transmitted in the PDCCH candidate. The terminal device 1 monitors a set of PDCCH candidates (candidates) in the serving cell. However, monitoring may mean attempting to decode the PDCCH according to a certain DCI format.

For example, the following DCI formats may be defined.
・ DCI format 0_0
・ DCI format 0_1
・ DCI format 0_2
・ DCI format 1_0
・ DCI format 1_1
・ DCI format 1-2
・ DCI format 2_0
・ DCI format 2_1
・ DCI format 2_2
・ DCI format 2_3

DCI format 0_0 may be used for scheduling PUSCH in a serving cell. The DCI format 0_0 may include information indicating PUSCH scheduling information (frequency domain resource allocation and time domain resource allocation). DCI format 0_0 refers to Cell-RNTI (C-RNTI), Configured Scheduling (CS) -RNTI), MCS-C-RNTI, and / or Tempor among the identifiers Radio Network Temporary Indicator (RNTI). A CRC (Cyclic Redundancy Check) scrambled by any of (TC-RNTI) may be added. DCI format 0_0 may be monitored in a common search space or a UE-specific search space.

DCI format 0_1 may be used for scheduling PUSCH in a serving cell. DCI format 0_1 refers to information indicating PUSCH scheduling information (frequency domain resource allocation and time domain resource allocation), information indicating a band width part (BWP), channel state information (CSI) request, and sounding reference. Signal (SRS: Sounding Referenc)
e Signal) Requests and / or may include information about the antenna port. DCI format 0-1 is C-RNTI, CS-RNTI, Semi among RNTI.
A CRC scrambled by either Persistent (SP) -CSI-RNTI and / or MCS-C-RNTI may be added. DCI format 0_1 may be monitored in the UE-specific search space.

DCI format 0_2 may be used for scheduling PUSCH in a serving cell. The DCI format 0_2 may include information indicating PUSCH scheduling information (frequency domain resource allocation and time domain resource allocation), information indicating BWP, CSI request, SRS request, and / or information regarding the antenna port. DCI format 0_2 may be supplemented with a CRC scrambled by any of the RNTIs C-RNTI, CSI-RNTI, SP-CSI-RNTI, and / or MCS-C-RNTI. DCI format 0_2 may be monitored in the UE-specific search space. DCI format 0_2 may be referred to as DCI format 0_1A and the like.

DCI format 1_0 may be used for scheduling PDSCH in a serving cell. The DCI format 1_0 may include information indicating PDSCH scheduling information (frequency domain resource allocation and time domain resource allocation). DCI format 1_0 is an identifier among C-RNTI, CS-RNTI, MCS-C-RNTI, Paging RNTI (P-RNTI), System Information (SI) -RNTI, Random Access (RA) -RNTI, and / or , TC-RNTI scrambled CRC may be added. DCI format 1_0 may be monitored in a common search space or a UE-specific search space.

DCI format 1-11 may be used for scheduling PDSCH in a serving cell. The DCI format 1-11 is information indicating PDSCH scheduling information (frequency domain resource allocation and time domain resource allocation), information indicating a band portion (BWP), transmission setting instruction (TCI: Transmission Configuration Indication), and / or an antenna port. May contain information about. The DCI format 1-11 may be supplemented with a CRC scrambled by any of the RNTIs, C-RNTI, CS-RNTI, and / or MCS-C-RNTI. DCI format 1-11 may be monitored in the UE-specific search space.

DCI format 1-2 may be used for scheduling PDSCH in a serving cell. The DCI format 1-2 may include information indicating PDSCH scheduling information (frequency domain resource allocation and time domain resource allocation), information indicating BWP, TCI, and / or information regarding antenna ports. The DCI format 1-2 may be added with a CRC scrambled by any of the RNTIs, C-RNTI, CS-RNTI, and / or MCS-C-RNTI. DCI format 1-2 may be monitored in the UE-specific search space. DCI format 1_2 may be referred to as DCI format 1-11A and the like.

DCI format 2_0 is used to signal the slot format of one or more slots. The slot format is defined as each OFDM symbol in the slot classified as downlink, flexible, or uplink. For example, when the slot format is 28, DDDDDDDDDDDDDFU is applied to the 14-symbol OFDM symbols in the slot in which the slot format 28 is designated. Here, D is a downlink symbol, F is a flexible symbol, and U is an uplink symbol. The slots will be described later.

The DCI format 2_1 is used to notify the terminal device 1 of a physical resource block (PRB or RB) that may be assumed to have no transmission and an OFDM symbol. This information may be referred to as a preemption instruction (intermittent transmission instruction).

DCI format 2_2 is used for the transmission of transmit power control (TPC) commands for PUSCH and PUSCH.

DCI format 2_3 is used to transmit a group of TPC commands for sounding reference signal (SRS) transmission by one or more terminal devices 1. Further, an SRS request may be transmitted together with the TPC command. Further, in DCI format 2_3, an SRS request and a TPC command may be defined for an uplink without PUSCH and PUCCH, or for an uplink in which the transmission power control of SRS is not associated with the transmission power control of PUSCH.

The DCI for the downlink is also referred to as a downlink grant or a downlink assignment. Here, the DCI for the uplink is also referred to as an uplink grant or an uplink assignment. DCI may also be referred to as DCI format.

The CRC parity bit added to the DCI format transmitted by one PDCCH is scrambled by SI-RNTI, P-RNTI, C-RNTI, CS-RNTI, RA-RNTI, or TC-RNTI. SI-RNTI may be an identifier used to broadcast system information. P-RNTI may be an identifier used for paging and notification of system information changes. C-RNTI, MCS-C-RNTI, and CS-RNTI are identifiers for identifying the terminal device in the cell. TC-RNTI is an identifier for identifying the terminal device 1 that transmitted the random access preamble during the contention based random access procedure.

C-RNTI is used to control PDSCH or PUSCH in one or more slots. CS-RNTI is used to periodically allocate PDSCH or PUSCH resources. MCS-C-RNTI is used to indicate the use of a given MCS table for grant-based transmission. TC-RNTI is used to control PDSCH transmission or PUSCH transmission in one or more slots. TC-RNTI is used to schedule the retransmission of the random access message 3 and the transmission of the random access message 4. RA-RNTI is determined according to the frequency and time position information of the physical random access channel that transmitted the random access preamble.

For C-RNTI and / or other RNTI, different values may be used depending on the type of traffic of PDSCH or PUSCH. C-RNTI and other RNTIs may use different values depending on the service type (eMBB, URLLC, and / or mMTC) of the data transmitted on the PDSCH or PUSCH. The base station apparatus 3 may use different values of RNTI depending on the service type of the data to be transmitted. The terminal device 1 may identify the service type of data transmitted on the associated PDSCH or PUSCH by the value of RNTI (used for scrambling) applied to the received DCI.

The PUCCH is used to transmit uplink control information (UCI) in uplink wireless communication (wireless communication from the terminal device 1 to the base station device 3). Here, the uplink control information may include channel state information (CSI: Channel State Information) used to indicate the status of the downlink channel. Further, the uplink control information may include a scheduling request (SR: Scheduling Request) used for requesting a UL-SCH resource. Further, the uplink control information may include HARQ-ACK (Hybrid Automatic Repeat request ACKnowledgement). HARQ-ACK may indicate HARQ-ACK for downlink data (Transport block, Medium Access Control Protocol Data Unit: MAC PDU, Downlink-Shared Channel: DL-SCH).

The PDSCH is used for transmitting downlink data (DL-SCH: Downlink Shared CHannel) from the medium access control (MAC) layer. The PDSCH is also used for transmitting system information (SI: System Information) and random access response (RAR: Random Access Response) in the case of downlink.

PUSCH is uplink data (UL-SCH: Uplink Shared CHannel) from the MAC layer.
Alternatively, it may be used to transmit HARQ-ACK and / or CSI with uplink data. PUSCH may also be used to transmit CSI only, or HARQ-ACK and CSI only. That is, PUSCH may be used to transmit only UCI.

Here, the base station device 3 and the terminal device 1 exchange (transmit) and receive signals in an upper layer (upper layer). For example, the base station device 3 and the terminal device 1 may send and receive RRC messages (also referred to as RRC message, RRC information, and RRC signalling) in the radio resource control (RRC) layer. In addition, the base station device 3
And the terminal device 1 may transmit and receive a MAC control element in the MAC (Medium Access Control) layer. Further, the RRC layer of the terminal device 1 acquires the system information notified from the base station device 3. Here, the RRC message, system information, and / or MAC control element are also referred to as a higher layer signal (higher layer signaling) or a higher layer parameter (higher layer parameter). Each of the parameters included in the upper layer signal received by the terminal device 1 may be referred to as an upper layer parameter. Since the upper layer here means an upper layer seen from the physical layer, it may include one or more such as a MAC layer, an RRC layer, an RLC layer, a PDCP layer, and a NAS (Non Access Stratum) layer. For example, in the processing of the MAC layer, the upper layer may include one or more layers such as an RRC layer, an RLC layer, a PDCP layer, and a NAS layer. Hereinafter, the meanings of "A is given (provided) by the upper layer" and "A is given (provided) by the upper layer" mean the upper layer (mainly RRC layer and MAC) of the terminal device 1. A layer or the like may mean that A is received from the base station device 3 and the received A is given (provided) to the physical layer of the terminal device 1 from the upper layer of the terminal device 1. For example, in the terminal device 1, "providing the upper layer parameter" means that the upper layer signal is received from the base station device 3 and the upper layer parameter included in the received upper layer signal is the terminal from the upper layer of the terminal device 1. It may mean that it is provided to the physical layer of device 1. Setting the upper layer parameter in the terminal device 1 may mean that the upper layer parameter is given (provided) to the terminal device 1. For example, setting the upper layer parameter in the terminal device 1 may mean that the terminal device 1 receives the upper layer signal from the base station device 3 and sets the received upper layer parameter in the upper layer. .. However, setting the upper layer parameter in the terminal device 1 may include setting the default parameter given in advance to the upper layer of the terminal device 1.

The PDSCH or PUSCH may be used to transmit RRC signaling and MAC control elements. The RRC signaling transmitted from the base station device 3 by the PDSCH may be a common signaling to a plurality of terminal devices 1 in the cell. Further, the RRC signaling transmitted from the base station device 3 may be dedicated signaling (also referred to as dedicated signaling) for a certain terminal device 1. That is, the information specific to the terminal device (UE specific) may be transmitted to a certain terminal device 1 using dedicated signaling. In addition, PUSCH may be used for transmission of UE Capability on the uplink.

In FIG. 1, the following downlink physical signals are used in downlink wireless communication. Here, the downlink physical signal is not used to transmit the information output from the upper layer, but is used by the physical layer.
-Synchronization signal (SS)
・ Reference Signal (RS)

The synchronization signal may include a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). The cell ID may be detected using PSS and SSS.

The synchronization signal is used by the terminal device 1 to synchronize the frequency domain and the time domain of the downlink. Here, the synchronization signal may be used by the terminal device 1 for precoding or beam selection in precoding or beamforming by the base station device 3. The beam may be referred to as a transmit or receive filter setting, or a spatial domain transmit filter or a spatial domain receive filter.

The reference signal is used by the terminal device 1 to compensate the propagation path of the physical channel. Here, the reference signal may also be used by the terminal device 1 to calculate the downlink CSI. Further, the reference signal may be used for fine synchronization such as numerology such as radio parameters and subcarrier intervals and window synchronization of FFT.

In this embodiment, any one or more of the following downlink reference signals are used.
・ DMRS (Demodulation Reference Signal)
・ CSI-RS (Channel State Information Reference Signal)
・ PTRS (Phase Tracking Reference Signal)
・ TRS (Tracking Reference Signal)

DMRS is used to demodulate modulated signals. Two types of DMRS, a reference signal for demodulating PBCH and a reference signal for demodulating PDSCH, may be defined, or both may be referred to as DMRS. CSI-RS is used for channel state information (CSI) measurement and beam management, and periodic or semi-persistent or aperiodic CSI reference signal transmission methods are applied. Non-zero power (NZP: Non-Zero Power) CSI-RS and zero power (ZP: Zero Power) CSI-RS with zero transmission power (or reception power) may be defined as CSI-RS. Here, ZP CSI-RS may be defined as a CSI-RS resource with zero or no transmit power; PTRS is used to track phase on the time axis for the purpose of guaranteeing frequency offset due to phase noise. Used. TRS is used to guarantee Doppler shift during high speed movement. TRS may be used as one setting of CSI-RS. For example, 1 port of CSI-RS is used as TRS. Radio resources may be set.

In this embodiment, any one or more of the following uplink reference signals are used.
・ DMRS (Demodulation Reference Signal)
・ PTRS (Phase Tracking Reference Signal)
・ SRS (Sounding Reference Signal)

DMRS is used to demodulate modulated signals. Two types of DMRS, a reference signal for demodulating PUCCH and a reference signal for demodulating PUSCH, may be defined, or both may be referred to as DMRS. SRS is used for uplink channel state information (CSI) measurement, channel sounding, and beam management. PTRS is used to track the phase on the time axis for the purpose of guaranteeing the frequency offset due to phase noise.

In the present embodiment, the downlink physical channel and / or the downlink physical signal is generally referred to as a downlink physical signal. In the present embodiment, the uplink physical channel and / or the uplink physical signal are generally referred to as an uplink signal. In this embodiment, the downlink physical channel and / or the uplink physical channel are generally referred to as physical channels. In this embodiment, the downlink physical signal and / or the uplink physical signal are generally referred to as physical signals.

BCH, UL-SCH and DL-SCH 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 referred to as a transport block (TB) and / or a MAC PDU (Protocol Data Unit). HARQ (Hybrid Automatic Repeat reQuest) is controlled for each transport block in the MAC layer. A transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, the transport block is mapped to a codeword, and the coding process is performed for each codeword.

FIG. 2 is a diagram showing an example of an SS / PBCH block (also referred to as a synchronous signal block, an SS block, and an SSB) and an SS burst set (also referred to as a synchronous signal burst set) according to the present embodiment. FIG. 2 shows an example in which two SS / PBCH blocks are included in a periodically transmitted SS burst set, and the SS / PBCH blocks are composed of consecutive 4OFDM symbols.

The SS / PBCH block is a unit block containing at least a synchronization signal (PSS, SSS) and / or PBCH. Transmitting a signal / channel included in an SS / PBCH block is expressed as transmitting an SS / PBCH block. When the base station apparatus 3 transmits a synchronization signal and / or PBCH using one or more SS / PBCH blocks in the SS burst set, the downlink transmission beam independent for each SS / PBCH block may be used. Good.

In FIG. 2, PSS, SSS, and PBCH are time / frequency-multiplexed in one SS / PBCH block. However, the order in which PSS, SSS and / or PBCH are multiplexed in the time domain may be different from the example shown in FIG.

The SS burst set may be periodically transmitted by the base station apparatus 3. For example, the SS / PBCH block is connected with the cycle for initial access (Connec).
ted or RRC_Connected) The cycle to be set for terminal device 1 may be defined. Further, the cycle set for the connected (Connected or RRC_Connected) terminal device 1 may be set in the RRC layer. Further, the cycle set for the connected (Connected or RRC_Connected) terminal device 1 is the cycle of the radio resource in the time domain that may potentially transmit, and is actually transmitted by the base station device 3. You may decide whether or not to do so. Further, the period for the SS / PBCH block to be used for the initial access may be defined in advance in the specifications and the like.

The SS burst set may be determined based on the system frame number (SFN). Further, the start position (boundary) of the SS burst set may be determined based on the SFN and the period.

The SS / PBCH block is assigned an SSB index (which may be referred to as an SSB / PBCH block index) according to its temporal position in the SS burst set. The terminal device 1 calculates the SSB index based on the PBCH information and / or the reference signal information included in the detected SS / PBCH block.

SS / PBCH blocks with the same relative time in each SS burst set in a plurality of SS burst sets are assigned the same SSB index. SS / PBCH blocks with the same relative time in each SS burst set in multiple SS burst sets may be assumed to be QCLs (or the same downlink transmit beam is applied). Also, antenna ports in SS / PBCH blocks with the same relative time in each SS burst set in multiple SS burst sets may be assumed to be QCL with respect to mean delay, Doppler shift, and spatial correlation.

Within a period of an SS burst set, SS / PBCH blocks assigned the same SSB index may be assumed to be QCL with respect to mean delay, mean gain, Doppler spread, Doppler shift, and spatial correlation. A setting corresponding to one or more SS / PBCH blocks (or a reference signal) which is a QCL may be referred to as a QCL setting.

The number of SS / PBCH blocks (which may be referred to as the number of SS blocks or the number of SSBs) is, for example, as the number of SS / PBCH blocks (number) in the SS burst or SS burst set or in the cycle of SS / PBCH blocks. May be defined. The number of SS / PBCH blocks may also indicate the number of beam groups for cell selection within the SS burst, within the SS burst set, or within the period of the SS / PBCH block. Here, a beam group may be defined as the number of different SS / PBCH blocks or the number of different beams contained within an SS burst, or within an SS burst set, or within a period of SS / PBCH blocks.

Hereinafter, the reference signals described in the present embodiment are downlink reference signals, synchronization signals, SS / PBCH blocks, downlink DM-RS, CSI-RS, uplink reference signals, SRS, and / or uplink DM-. Includes RS. For example, in this embodiment, the downlink reference signal, the synchronization signal and / or the SS / PBCH block may be referred to as a reference signal. Reference signals used in the downlink include downlink reference signals, synchronization signals, SS / PBCH blocks, downlink DM-RS, CSI-RS and the like. Reference signals used in the uplink include uplink reference signals, SRS, and / or uplink DM-RS and the like.

In addition, the reference signal may be used for radio resource measurement (RRM). The reference signal may also be used for beam management.

Beam management includes analog and / or digital beams in a transmitting device (base station device 3 in the case of downlink and terminal device 1 in the case of uplink) and a receiving device (terminal device 1 in the case of downlink). , In the case of uplink, the base station device 3) may be the procedure of the base station device 3 and / or the terminal device 1 for matching the directivity of the analog and / or digital beam and acquiring the beam gain.

The procedure for configuring, setting or establishing the beam pair link may include the following procedure.
・ Beam selection
・ Beam refinement
・ Beam recovery

For example, beam selection may be a procedure for selecting a beam in communication between a base station device 3 and a terminal device 1. Further, the beam improvement may be a procedure of selecting a beam having a higher gain or changing the beam between the base station device 3 and the terminal device 1 which is optimal by moving the terminal device 1. The beam recovery may be a procedure for reselecting a beam when the quality of the communication link deteriorates due to a blockage caused by a shield or the passage of a person in the communication between the base station device 3 and the terminal device 1.

Beam management may include beam selection and beam improvement. Beam recovery may include the following procedures.
-Detection of beam failure-Discovery of new beam-Send beam recovery request-Monitor response to beam recovery request

For example, RSRP (Reference Signal Received Power) of CSI-RS or SSS included in the SS / PBCH block may be used when selecting the transmission beam of the base station device 3 in the terminal device 1, or CSI may be used. Good. Further, the CSI-RS Resource Index (CRI) may be used as a report to the base station apparatus 3, or for demodulation used for demodulation of PBCH and / or PBCH included in the SS / PBCH block. An index indicated by a sequence of reference signals (DMRS) may be used.

Further, the base station apparatus 3 instructs the time index of CRI or SS / PBCH when instructing the beam to the terminal apparatus 1, and the terminal apparatus 1 receives the time index based on the instructed time index of CRI or SS / PBCH. To do. At this time, the terminal device 1 may set a spatial filter based on the indicated time index of CRI or SS / PBCH and receive it. Further, the terminal device 1 may receive using the assumption of pseudo-same position (QCL: Quasi Co-Location). One signal (antenna port, sync signal, reference signal, etc.) is "QCL" with another signal (antenna port, sync signal, reference signal, etc.), or "the QCL assumption is used" means that one signal is It may be interpreted as being associated with another signal.

If the Long Term Property of a channel carrying a symbol at one antenna port can be inferred from the channel carrying a symbol at the other antenna port, then the two antenna ports are said to be QCLs. .. The long interval characteristics of the channel include one or more of delay spreads, Doppler spreads, Doppler shifts, average gains, and average delays. For example, when the antenna port 1 and the antenna port 2 are QCL with respect to the average delay, it means that the reception timing of the antenna port 2 can be inferred from the reception timing of the antenna port 1.

This QCL can also be extended to beam management. Therefore, a QCL extended to the space may be newly defined. For example, as the long term property of the channel in the QCL assumption of the spatial domain, the approach angle (AoA (Angle of Arrival), ZoA (Zenith angle of Arrival), etc.) and / or the angle spread in the radio link or channel. (Angle Spread, for example ASA (Angle Spread of Arrival) and ZSA (Zenith angle Spread of Arrival)), delivery angle (AoD, ZoD, etc.) and its angle spread (Angle Spread, for example ASD (Angle Spread of Departure) and ZSD ( Zenith angle Spread of Departure), Spatial Correlation, reception space parameters.

For example, when the reception space parameter between the antenna port 1 and the antenna port 2 can be regarded as QCL, the reception beam (reception space filter) that receives the signal from the antenna port 1 receives the signal from the antenna port 2. It means that the beam can be inferred.

As the QCL type, a combination of long interval characteristics that may be considered to be a QCL may be defined. For example, the following types may be defined.
-Type A: Doppler shift, Doppler spread, average delay, delay spread-Type B: Doppler shift, Doppler spread-Type C: average delay, Doppler shift-Type D: reception space parameter

The QCL type described above sets and / or sets the QCL assumption of one or two reference signals in the RRC and / or MAC layer and / or DCI and the PDCCH or PDSCH DMRS as a Transmission Configuration Indication (TCI). You may instruct. For example, when the SS / PBCH block index # 2 and QCL type A + QCL type B are set and / or instructed as one state of TCI when the terminal device 1 receives the PDCCH, the terminal device 1 sets the PDCCH DMRS. When receiving, the Doppler shift, Doppler spread, average delay, delay spread, reception space parameter and channel long interval characteristics in the reception of SS / PBCH block index # 2 are regarded as, and the PDCCH DMRS is received for synchronization and propagation path. You may make an estimate. At this time, the reference signal (SS / PBCH block in the above example) indicated by TCI is the source reference signal, and the reference is affected by the long interval characteristic inferred from the long interval characteristic of the channel when receiving the source reference signal. The signal (PDCCH DMRS in the above example) may be referred to as a target reference signal. Further, the TCI may be instructed to the terminal device 1 by the MAC layer or DCI, in which one or a plurality of TCI states and a combination of a source reference signal and a QCL type are set for each state by RRC.

By this method, even if the operation of the base station device 3 and the terminal device 1 equivalent to the beam management is defined by the assumption of the QCL of the spatial domain and the radio resource (time and / or frequency) as the beam management and the beam instruction / report. Good.

The subframe will be described below. In the present embodiment, the following is referred to as a subframe, but the subframe according to the present embodiment may be referred to as a resource unit, a radio frame, a time interval, a time interval, or the like.

FIG. 3 is a diagram showing an example of a schematic configuration of an uplink and a downlink slot according to the first embodiment of the present invention. Each of the radio frames is 10 ms long. Further, each of the wireless frames is composed of 10 subframes and W slots. Also,
One slot is composed of X OFDM symbols. That is, the length of one subframe is 1 ms. The time length of each slot is defined by the subcarrier interval. For example, when the subcarrier interval of the OFDM symbol is 15 kHz and NCP (Normal Cyclic Prefix), X = 7 or X = 14, which are 0.5 ms and 1 ms, respectively. When the subcarrier interval is 60 kHz, X = 7 or X = 14, which is 0.125 ms and 0.25 ms, respectively. Further, for example, in the case of X = 14, W = 10 when the subcarrier interval is 15 kHz, and W = 40 when the subcarrier interval is 60 kHz. FIG. 3 shows the case of X = 7 as an example. Note that the example of FIG. 3 can be similarly extended when X = 14. Further, the uplink slot is also defined in the same manner, and the downlink slot and the uplink slot may be defined separately. Further, the bandwidth of the cell in FIG. 3 may be defined as a part of the bandwidth (BWP: BandWidth Part). Further, the slot may be defined as a transmission time interval (TTI). Slots do not have to be defined as TTI. The TTI may be the transmission period of the transport block.

The signal or physical channel transmitted in each of the slots may be represented by a resource grid. The resource grid is defined by multiple subcarriers and multiple OFDM symbols for each numerology (subcarrier spacing and cyclic prefix length) and for each carrier. The number of subcarriers that make up a slot depends on the bandwidth of the downlink and uplink of the cell, respectively. Each of the elements in the resource grid is called a resource element. Resource elements may be identified using subcarrier numbers and OFDM symbol numbers.

The resource grid is used to represent the mapping of resource elements of a physical downlink channel (such as PDSCH) or uplink channel (such as PUSCH). For example, when the subcarrier interval is 15 kHz, the number of OFDM symbols included in the subframe is X = 14, and in the case of NCP, one physical resource block has 14 consecutive OFDM symbols in the time domain and the frequency domain. It is defined from 12 * Nmax consecutive subcarriers. Nmax is the maximum number of resource blocks (RB) determined by the subcarrier interval setting μ described later. That is, the resource grid is composed of (14 * 12 * Nmax, μ) resource elements. In the case of ECP (Extended CP), since it is supported only at the subcarrier interval of 60 kHz, one physical resource block is, for example, 12 (the number of OFDM symbols included in one slot) * 4 (included in one subframe) in the time domain. Number of slots) = 48 consecutive OFDM symbols and 12 * Nmax, μ consecutive subcarriers in the frequency domain. That is, the resource grid is composed of (48 * 12 * Nmax, μ) resource elements.

Reference resource blocks, common resource blocks, physical resource blocks, and virtual resource blocks are defined as resource blocks (RBs). One resource block is defined as 12 consecutive subcarriers in the frequency domain. The reference resource block is common to all subcarriers. For example, resource blocks may be configured at subcarrier intervals of 15 kHz and numbered in ascending order. Subcarrier index 0 at reference resource block index 0 may be referred to as reference point A (may simply be referred to as "reference point"). The common resource block is a resource block numbered from 0 in ascending order in each subcarrier interval setting μ from the reference point A. The resource grid described above is defined by this common resource block. The physical resource block is a resource block numbered in ascending order from 0 contained in the band portion (BWP) described later, and the physical resource block is a resource block numbered in ascending order from 0 contained in the band portion (BWP). It is a numbered resource block. A physical uplink channel is first mapped to a virtual resource block. The virtual resource block is then mapped to a physical resource block. Hereinafter, the resource block may be a virtual resource block, a physical resource block, a common resource block, or a reference resource block.

Next, the subcarrier interval setting μ will be described. As mentioned above, NR supports one or more OFDM numerologies. In a certain BWP, the subcarrier interval setting μ (μ = 0,1, ..., 5) and the cyclic prefix length are given in the upper layer with respect to the downlink BWP, and are given in the upper layer in the uplink BWP. Given in. Here, when μ is given, the subcarrier interval Δf is given at Δf = 2 ^ μ · 15 (kHz).

In the subcarrier interval setting μ, slots are counted from 0 to N ^ {subframe, μ} _ {slot} -1 in the subframe in ascending order, and from 0 to N ^ {frame, μ} _ {slot in the frame. } -1 is counted in ascending order. There are consecutive OFDM symbols of N ^ {slot} _ {symb} in the slot based on the slot settings and cyclic prefix. N ^ {slot} _ {symb} is 14. The start of slot n ^ {μ} _ {s} in a subframe is the start and time of the n ^ {μ} _ {s} * N ^ {slot} _ {symb} th OFDM symbol in the same subframe. Aligned with.

Next, the subframe, the slot, and the mini slot will be described. FIG. 4 is a diagram showing an example of the relationship between the subframe, the slot, and the mini slot in the time domain. As shown in the figure, three types of time units are defined. The subframe is 1 ms regardless of the subcarrier interval, and the number of OFDM symbols contained in the slot is 7 or 14 (provided that the cyclic prefix (CP) added to each symbol is Extended CP, 6 Or 12), the slot length depends on the subcarrier spacing. Here, when the subcarrier interval is 15 kHz, one subframe contains 14 OFDM symbols. The downlink slot may be referred to as PDSCH mapping type A. The uplink slot may be referred to as PUSCH mapping type A.

A minislot (which may also be referred to as a subslot) is a time unit composed of fewer OFDM symbols than the number of OFDM symbols contained in one slot. The figure shows the case where the mini slot is composed of 2 OFDM symbols as an example. The OFDM symbols in the minislot may match the OFDM symbol timings that make up the slot. The minimum unit of scheduling may be a slot or a mini slot. Also, allocating mini-slots may be referred to as non-slot-based scheduling. Also, scheduling a minislot may be expressed as a resource whose time position relative to the reference signal and data start position is fixed. The downlink minislot may be referred to as PDSCH mapping type B. The uplink minislot may be referred to as PUSCH mapping type B.

In the terminal device 1, the transmission direction (uplink, downlink or flexible) of the symbols in each slot is set in the upper layer using an RRC message including a predetermined upper layer parameter received from the base station device 3. It is set by the PDCCH of a specific DCI format (for example, DCI format 2_0) received from the base station apparatus 3. In the present embodiment, in each slot, each symbol in the slot sets any of uplink, downlink, and flexibility, which is called a slot format. One slot format may include downlink symbols, uplink symbols and flexible symbols.

FIG. 5 is a diagram showing an example of a slot format. Here, a case where the slot length is 1 ms at a subcarrier interval of 15 kHz is shown as an example. In the figure, D indicates a downlink and U indicates an uplink. As shown in the figure, within a certain time interval (for example, the minimum time interval that must be assigned to one UE in the system)
-One or more of the downlink symbol, the flexible symbol, and the uplink symbol may be included. The ratio of these symbols in a certain slot may be predetermined as a slot format. Also, the proportion of these symbols in a slot may be defined by the number of downlink OFDM symbols contained within the slot or the start and / or end positions within the slot. Also, the proportion of these symbols in a slot may be defined by the number of uplink OFDM symbols or DFT-S-OFDM symbols contained within the slot or the start and / or end position within the slot. Note that scheduling a slot for the terminal device 1 may be expressed as scheduling a resource whose relative time position between the reference signal and the slot boundary is fixed.

When the upper layer parameter TDD-UL-DL-ConfigurationCommon is provided, the terminal device 1 sets the slot format for each slot over one or more slots as indicated by the TDD-UL-DL-ConfigurationCommon. The TDD-UL-DL-ConfigurationCommon provides the following parameters:
-Reference subcarrier spacing (SCS: subcarrier spacing) setting μ _ref
・ Slot format pattern 1

Slot format pattern 1 provides the following parameters.
・ Slot setting period P (milliseconds)
-Number of slots (downlink slots) consisting only of downlink symbols in the slot setting period P d _{slots
-Number of} downlink symbols excluding the symbols in the downlink slot in the slot setting period P d sym
-Number of slots (uplink slots) consisting only of uplink symbols in the slot setting period P _{uslots
-Number of} uplink symbols excluding the symbols in the uplink slot in the slot setting period P u ym

The slot setting period P (milliseconds) includes the slot (S = P * 2 ^ (μ _ref )) in the _{reference SCS setting μ ref.} Within the S slot, the first d _slots contains only the downlink symbol and the last _us slot contains only the uplink symbol. _{The d sym} symbol next to the first d _slots is the downlink symbol, and _{the u sym} symbol immediately before the _{last u slots} is the uplink symbol. The remaining symbols in the S slot are flexible symbols.

In addition to the slot format pattern 1, the slot format pattern 2 may be provided by the TDD-UL-DL-Configuration Common. The slot format pattern 2 includes the same parameters as the slot format pattern 1, and values different from those of the slot format pattern 1 may be set respectively. The slot format pattern 2 includes an S ₂ slot and provides a slot format setting in the _{S 2} slot next to the S slot.

The terminal device 1 is based on the slot format pattern 1 and / or the slot format pattern 2 provided by the TDD-UL-DL-Configuration Common, for each S slot (when only the slot format pattern 1 is provided) or (S + S _2). ) Set the slot format of each slot for each slot (when slot format pattern 1 and slot format pattern 2 are provided). However, a similar parameter indicating the other slot format pattern comprising a parameter (e.g., S ₃ Slot format pattern 3 shows the slot format of a slot, etc.) are provided, may be slot format of each slot is set. _{However, if the reference SCS setting μ ref} indicated by the TDD-UL-DL-ConfigurationCommon and the SCS setting μ of the DL BWP or UL BWP described later are different from each other, the terminal device 1 has a slot set by the TDD-UL-DL-CompositionCommon. The transmission direction of each symbol in the format may be applied to _{consecutive 2 ^ (μ—μref) symbols in DL BWP or UL BWP.}

When the terminal device 1 is provided with the upper layer parameter TDD-UL-DL-ConfigurationDistinged, the terminal device 1 uses the flexible symbol as the uplink symbol among the slot formats of the plurality of slots set by the upper layer parameter TDD-UL-DL-ConfigurationCommon. , The downlink symbol or the flexible symbol may be overwritten.

An RRC message containing TDD-UL-DL-Configuration Symbol and / or TDD-UL-DL-Configuration Symbolized is referred to as an RRC message containing upper layer slot format setting information, and is referred to as a TDD-UL-DL-Composition Symbol and / or TDD-UL-. Setting the slot format (uplink symbol / downlink symbol / flexible symbol) with DL-ConfigurationDicated is to set the slot format (uplink symbol / downlink symbol / flexible symbol) based on the upper layer slot format setting information. It may be called.

The terminal device 1 considers that the symbol indicated as downlink in the upper layer slot format setting information is available for reception, and does not transmit uplink signals (for example, PUSCH, PUCCH, PRACH and / or SRS). The terminal device 1 considers that the symbol indicated as uplink in the upper layer slot format setting information is available for transmission, and does not receive the downlink signal (for example, PDCCH, PDSCH or CSI-RS).

If the terminal device 1 is not set to monitor the PDCCH for the DCI format (for example, DCI format 2_0) that sets the slot format, the symbol (upper layer) indicated as flexible in the upper layer slot format setting information. In a predetermined DCI format (eg DCI format 1_0, 1_1 or 0_1) in a slot format setting information (which may include any symbol when not provided), a downlink signal (eg PDSCH or CSI-RS) is specified. ) May be received, or an uplink signal (eg, PUSCH, PUCCH, PRACH or SRS) specified in a predetermined DCI format (eg DCI format 0_0, 0_1, 1_0, 1_1 or 2_3) may be transmitted. ..

If the terminal device 1 is not set to monitor the PDCCH for the DCI format (for example, DCI format 2_0) that sets the slot format, the symbol (upper layer) indicated as flexible in the upper layer slot format setting information. In the slot format setting information (which may include any symbol when no slot format setting information is provided), it is set to receive a downlink signal (for example, PDCCH, PDSCH or CSI-RS) with a set of symbols which is an upper layer. In the case, a predetermined DCI format (for example, DCI format 0_0, 0_1, 1_0, 1_1 or 2_3) indicating that an uplink signal (for example, PUSCH, PUCCH, PRACH or SRS) is transmitted in any one symbol of the set of symbols. If is not detected, the downlink signal is received, and in other cases, the downlink signal is not received with the set of symbols.

If the terminal device 1 is not set to monitor PDCCH for DCI format (eg DCI format 2_0) including the slot format indicator (SFI), the symbol indicated as flexible in the upper layer slot format setting information. In (which may include any symbol when the upper layer slot format setting information is not provided), transmitting an uplink signal (for example, SRS, PUCCH, PUSCH or PRACH) with a set of symbols which is an upper layer. When set, it detects a predetermined DCI format (eg DCI format 1_0, 1_1 or 0_1) indicating that any one symbol in the set of symbols will receive a downlink signal (eg CSI-RS or PDSCH). If not, the uplink signal is transmitted.

The terminal device 1 monitors a DCI format (eg DCI format 2_0) including a slot format indicator (SFI) field when the upper layer parameter SlotFormatIndicator is set by the upper layer. The DCI format including the SFI field may be referred to as slot format setting DCI or slot format setting information by PDCCH.

The value of the SFI field in the DCI format indicates to the terminal device 1 a combination of slot formats (slot format combination) of each slot in a plurality of slots starting from the slot in which the DCI format is detected. The value of the SFI field indicates the index value corresponding to one of the set of slot format combinations set in the upper layer.

In the terminal device 1, the following parameters are set for each serving cell by the SlotFormatIndicator.
-Serving cell identifier-Position of corresponding SFI field in DCI format-Set of slot format combinations (each slot format combination is a slot format corresponding to each of multiple slots in a pre-given slot format table. Indicates a combination of indexes)
-Reference SCS configuration in FDD μ _SFI
-DL BWP reference SCS setting μ _{SFI, DL} and UL BWP reference SCS setting μ _{SFI, UL in TDD}

FIG. 6 is a diagram showing an example of a slot format table according to the present embodiment. In the table of FIG. 6, 256 slot formats are shown, each of which is assigned an index of 0 to 255 (however, in FIG. 6, slot formats having indexes of 5 to 254 are omitted). In each slot format, "Symbol number in a slot" corresponds to a symbol whose index in the slot is from 0 to 13, where D indicates a downlink symbol, U indicates an uplink symbol, and F indicates a flexible symbol. ing. Further, the slot format table includes a slot format index that determines the slot format based on the upper layer slot format setting information without directly indicating the slot format, as shown in FIG. 6 where the slot format index is 255. May be good.

In FDD, the reference SCS setting μ in each slot format of the slot format combination indicated by the value of the SFI field. _{Each downlink symbol, uplink symbol, and flexible symbol of SFI} is a continuous 2 ^ (μ-μ) of SCS setting μ. _SFI ) Corresponds to downlink symbols, uplink symbols and flexible symbols.

In TDD, if μ _{SFI, DL} > μ _{SFI, UL , then 2 ^ (μ SFI, DL} −μ _{SFI, UL} ) + 1 slot format in the slot format combination indicated by the value of the SFI field is the first. _{2 ^ (μ SFI, DL -μ} SFI, DL) number is applied to a reference DL BWP, 1 piece of the following applies to the reference UL BWP. In TDD, when μ _{SFI, DL} <μ _{SFI, DL , 2 ^ (μ SFI, UL} −μ _{SFI, DL} ) + 1 slot format in the slot format combination indicated by the value of the SFI field is the first. One is applied to the reference DL BWP and the next 2 ^ (μ _{SFI, UL} − μ _{SFI, DL} ) are applied to the reference UL BWP.

In TDD, the reference DL of the slot format combination indicated by the value of the SFI field Reference in each slot format of BWP SCS setting μ Each downlink symbol, uplink symbol and flexible symbol of _{SFI and DL} are active in SCS setting μ DL, respectively. Corresponds to 2 ^ (μ _DL- μ _{SFI, DL} ) consecutive downlink symbols, uplink symbols, and flexible symbols of DL BWP, and the reference SCS setting in each slot format of reference UL BWP μ _SFI, each downlink of UL The link symbol, uplink symbol, and flexible symbol correspond _{to 2 ^ (μ UL} − _{μ SFI, UL} ) consecutive downlink symbols, uplink symbols, and flexible symbols of the active UL BWP with the _{SCS setting μ UL, respectively.}

The terminal device 1 may receive a downlink signal or a downlink channel with a downlink symbol or a flexible symbol. The terminal device 1 may transmit an uplink signal or a downlink channel with an uplink symbol or a flexible symbol.

FIG. 5A may also be referred to as a time interval (for example, the minimum unit of time resources that can be allocated to one UE, a time unit, or the like. Further, a plurality of minimum units of time resources are bundled and referred to as a time unit. (May be), all of which are used for downlink transmission, and FIG. 5 (b) shows the PDCCH processing delay and downlink by scheduling the uplink via, for example, PDCCH with the first time resource. The uplink signal is transmitted via a flexible symbol that includes the uplink switching time from and the generation of the transmit signal. FIG. 5 (c) is the first time resource used to transmit the PDCCH and / or the downlink PDSCH, the PUSCH or PUCCH through the processing delay and the downlink-to-uplink switching time, the gap for generating the transmit signal. Used for transmission of. Here, as an example, the uplink signal may be used to transmit HARQ-ACK and / or CSI, i.e. UCI. FIG. 5 (d) shows the PDCCH and / or PDSCH transmission in the first time resource, the uplink PUSCH and / or the uplink PUSCH and / or through the downlink to uplink switching time and the gap for generating the transmit signal. Alternatively, it is used for transmitting PUCCH. Here, as an example, the uplink signal may be used for transmission of uplink data, that is, UL-SCH. FIG. 5E is an example in which all are used for uplink transmission (PUSCH or PUCCH).

The downlink part and the uplink part described above may be composed of a plurality of OFDM symbols as in LTE.

FIG. 7 is a diagram showing an example of beamforming. A plurality of antenna elements are connected to one transmission unit (TXRU: Transceiver unit) 50, the phase is controlled by a phase shifter 51 for each antenna element, and transmission is performed from the antenna element 52 in an arbitrary direction with respect to the transmission signal. You can direct the beam. Typically, TXRU may be defined as an antenna port, and in terminal device 1, only the antenna port may be defined. Since the directivity can be directed in an arbitrary direction by controlling the phase shifter 51, the base station device 3 can communicate with the terminal device 1 using a beam having a high gain.

Hereinafter, the band portion (BWP, Bandwidth part) will be described. BWP is also referred to as carrier BWP. BWP may be set for each of the downlink and the uplink. A BWP is defined as a set of contiguous physical resources selected from a contiguous subset of common resource blocks. The terminal device 1 may be configured with up to four BWPs in which one downlink carrier BWP (DL BWP) is activated at a given time. The terminal device 1 may be configured with up to four BWPs in which one uplink carrier BWP (UL BWP) is activated at a given time. In the case of carrier aggregation, BWP may be set in each serving cell. At this time, the fact that one BWP is set in a certain serving cell may be expressed as "BWP is not set". Further, the fact that two or more BWPs are set may be expressed as "BWP is set".

<MAC entity operation>
In an activated serving cell, there is always one active (activated) BWP. BWP switching for a serving cell is used to activate an inactive (deactivated) BWP and deactivate an active (activated) BWP. Will be done. BWP switching for a serving cell is controlled by a PDCCH indicating a downlink assignment or uplink grant. BWP switching for a serving cell may also be further controlled by the BWP inactivity timer, RRC signaling, or the MAC entity itself at the start of a random access procedure. In the addition of SpCell (PCell or PSCell) or activation of SCell, one BWP is primarily active without receiving a PDCCH indicating a downlink assignment or uplink grant. The first active DL BWP (first active DL BWP) and UL BWP (first active UL BWP) may be specified in the RRC message sent from the base station device 3 to the terminal device 1. The active BWP for a serving cell is specified by the RRC or PDCCH sent from the base station apparatus 3 to the terminal apparatus 1. Further, the first active DL BWP (first active DL BWP) and UL BWP (first active UL BWP) may be included in the message 4. In an unpaired spectrum (such as a TDD band), DL BWP and UL BWP are paired, and BWP switching is common to UL and DL. In the active BWP for each of the activated serving cells in which the BWP is set, the MAC entity of the terminal device 1 applies normal processing. Normal processing includes transmitting UL-SCH, transmitting RACH, monitoring PDCCH, transmitting PUCCH, transmitting SRS, and receiving DL-SCH. In the inactive BWP for each of the activated serving cells in which the BWP is set, the MAC entity of the terminal device 1 does not transmit UL-SCH, does not transmit RACH, does not monitor PDCCH, does not transmit PUCCH, Do not send SRS and do not receive DL-SCH. If a serving cell is deactivated, the active BWP may be absent (eg, the active BWP is deactivated).

<RRC operation>
The BWP information element (IE) included in the RRC message (notified system information or information sent in a dedicated RRC message) is used to set the BWP. The RRC message transmitted from the base station device 3 is received by the terminal device 1. For each serving cell, the network (such as base station device 3) should have at least one downlink BWP (for example, if the serving cell is configured for uplink) or two (supplementary uplink). At least the initial BWP (initial BWP) including the uplink BWP of (such as when is used) is set for the terminal device 1. In addition, the network may set up additional uplink BWPs and downlink BWPs for certain serving cells. BWP settings are divided into uplink parameters and downlink parameters. In addition, the BWP setting is divided into a common parameter and a dedicated parameter. Common parameters (such as BWP uplink common IE and BWP downlink common IE) are cell-specific. The common parameters of the initial BWP of the primary cell are also provided in the system information. For all other serving cells, the network provides common parameters with a dedicated signal. BWP is identified by BWP ID. The initial BWP has a BWP ID of 0. The BWP ID of the other BWP takes a value from 1 to 4.

If the upper layer parameter initialDownloadBWP is not set (provided) for terminal device 1, the initial DL BWP (initial active DL BWP) is the control resource set (CORESET) for the type 0 PDCCH common search space. For PDCCH reception at, it may be defined by the position and number of consecutive PRBs, subcarrier spacing, and cyclic prefix. The position of the continuous PRB begins with the lowest index PRB and ends with the highest index PRB between the PRBs of the control resource set for the type 0PDCCH common search space. When the upper layer parameter initialDownlinkBWP is set (provided) for the terminal device 1, the initial DL BWP may be indicated by the upper layer parameter initialDownlinkBWP. The upper layer parameter initialDownlinkBWP may be included in SIB1 (systemInformationBlockType1, ServingCellConfigCommonSIB) or ServingCellConfigCommon. The information element ServingCellConfigCommonSIB is used within SIB1 to set cell-specific parameters of the serving cell for the terminal device 1.

That is, when the upper layer parameter initialDownloadBWP is not set (provided) for the terminal device 1, the size of the initial DL BWP is the number of resource blocks of the control resource set (CORESET # 0) for the type 0PDCCH common search space. There may be. When the upper layer parameter initialDownloadBWP is set (provided) for the terminal device 1, the size of the initial DL BWP may be given by the locationAndBandwise included in the upper layer parameter initialDownloadBWP. The upper layer parameter locationAndBandwise may indicate the position and bandwidth of the frequency domain of the initial DL BWP.

As described above, a plurality of DL BWPs may be set for the terminal device 1. Then, among the DL BWPs set for the terminal device 1, the default DL BWP can be set by the parameter defaultDownlinkBWP-Id of the upper layer. Upper layer parameter defaultDownlinkBWP for terminal device 1
If -Id is not provided, the default DL BWP is the initial DL BWP.

An initial UL BWP may be provided to the terminal device 1 by SIB1 (systemInformationBlockType1) or initialUplinkBWP. The information element initialUplinkBWP is used to set the initial UL BWP. The initial UL BWP (initial active UL BWP) may be set (provided) in the terminal device 1 by the parameter initialUplinkBWP of the upper layer for the operation in the SpCell or the secondary cell. When a supplementary UL carrier is set for the terminal device 1, the terminal device 1 is set with the initial UL in the supplementary uplink carrier by the initialUplinkBWP included in the parameter supplementaryUplink of the upper layer. BWP may be set.

Hereinafter, the control resource set (CORESET) in the present embodiment will be described.

A control resource set (CORESET, Control resource set) is a time and frequency resource for searching downlink control information. The CORESET setting information includes a CORESET identifier (ControlResourceSetId, CORESET-ID) and information for identifying the CORESET frequency resource. The information element ControlResourceSetId (identifier of CORESET) is used to identify the control resource set in a serving cell. The CORESET identifier is used between BWPs in a serving cell. The CORESET identifier is unique among BWPs in the serving cell. The number of CORESETs in each BWP is limited to 3, including the initial CORESETs. In a serving cell, the value of the CORESET identifier takes a value from 0 to 11.

The control resource set specified by the CORESET identifier 0 (ControlResourceSetId 0) is referred to as CORESET # 0. CORESET # 0 may be set by pdcch-ConfigSIB1 included in the MIB or PDCCH-ConfigCommon included in the ServingCellConfigCommon. That is, the setting information of CORESET # 0 may be pdcch-ConfigSIB1 included in the MIB or PDCCH-ConfigCommon included in the ServingCellConfigCommon. The setting information of CORESET # 0 may be set by the controlResourceSetZero included in PDCCH-ConfigSIB1 or PDCCH-ConfigCommon. That is, the information element controlResourceSetZero is used to indicate the initial DL BWP CORESET # 0 (common CORESET). The CORESET represented by pdch-ConfigSIB1 is CORESET # 0. The information element pdch-ConfigSIB1 in the MIB or dedicated configuration is used to set the initial DL BWP. CORESET setting information for CORESET # 0 pdch-ConfigSIB1 explicitly specifies the CORESET identifier, the CORESET frequency resource (for example, the number of continuous resource blocks), and the time resource (the number of continuous symbols). No information is included, but the frequency resources (eg, the number of continuous resource blocks) and the time resources (for example, the number of continuous symbols) of the COSETT for COREST # 0 are implied by the information contained in pdcch-ConfigSIB1. Can be identified. The information element PDCCH-ConfigCommon is used to set cell-specific PDCCH parameters provided by the SIB. The PDCCH-ConfigCommon may also be provided at the time of handover and the addition of PSCell and / or SCell. The setting information of CORESET # 0 is included in the setting of the initial BWP. That is, the setting information of CORESET # 0 does not have to be included in the setting of BWP other than the initial BWP. The controlResourceSetZero corresponds to 4 bits (for example, 4 bits of MSB and 4 bits of the most significant bit) of pdcch-ConfigSIB1. CORESET # 0 is a control resource set for a type 0 PDCCH common search space.

The setting information of the additional common CORESET (additional common control resource set) may be set by the controlControlResourceSet included in the PDCCH-ConfigCommon. Also, additional common CORESET configuration information may be used to specify additional common CORESET for system information and / or paging procedures. Additional common CORESET configuration information may be used to specify additional common CORESETs used for random access procedures. Additional common CORESET configuration information may be included within each BWP configuration. The CORESET identifier shown in the controlControlRelocationSet takes a non-zero value.

The common CORESET may be a CORESET (eg, an additional common CORESET) used in a random access procedure. Further, in the present embodiment, the common CORESET may include CORESET set by CORESET # 0 and / or additional common CORESET setting information. That is, the common CORESET may include CORESET # 0 and / or additional common CORESET. CORESET # 0 may be referred to as common CORESET # 0. The setting information of the common CORESET may be referred to (acquired) even in the BWP other than the terminal device 1 and the BWP in which the common CORESET is set.

The setting information of one or more CORESETs may be set by PDCCH-Config. The information element PDCCH-Config is used to set UE-specific PDCCH parameters (eg, CORESET, search space, etc.) for a BWP. PDCCH-Config may be included in the settings of each BWP.

That is, in the present embodiment, the common CORESET setting information indicated by MIB is pdcch-ConfigSIB1, the common CORESET setting information indicated by PDCCH-ConfigCommon is controlResourceSetZero, and the common CORESET indicated by PDCCH-ConfigCommon (additional). The setting information of (common CORESET) is commonControlResourceSet. Further, the setting information of one or a plurality of CORESETs (UE specifically configured Control Resource Sets, UE-specific CORESETs) indicated by PDCCH-Config is controlResourceSetToAdModList.

A search space is defined to search for PDCCH candidates. The searchSpaceType included in the search space setting information indicates whether the search space is a common search space (CSS) or a UE-specific search space (USS). The UE-specific search space is derived from at least the value of C-RNTI set by the terminal device 1. That is, the UE-specific search space is individually derived for each terminal device 1. The common search space is a common search space among a plurality of terminal devices 1, and is composed of a CCE (Control Channel Element) having a predetermined index. CCE is composed of a plurality of resource elements. The search space setting information includes information in the DCI format monitored in the search space.

The search space setting information includes the CORESET identifier specified in the CORESET setting information. The CORESET specified by the CORESET identifier included in the search space setting information is associated with the search space. In other words, the CORESET associated with the search space is a CORESET specified by the identifier of the CORESET included in the search space. The DCI format indicated by the search space configuration information is monitored by the associated CORESET. Each search space is associated with one CORESET. For example, the search space setting information for the random access procedure may be set by the ra-SearchSpace. That is, the CRC-added DCI format scrambled by RA-RNTI or TC-RNTI is monitored at the CORESET associated with the ra-SearchSpace.

Terminal 1 monitors a set of PDCCH candidates in one or more CORESETs located in each active serving cell that is configured to monitor PDCCH. The set of PDCCH candidates corresponds to one or more search space sets. “Monitoring” may mean decoding each PDCCH candidate according to one or more DCI formats being monitored. The set of PDCCH candidates monitored by the terminal device 1 is defined by the PDCCH search space sets. One search space set is a common search space set or a UE-specific search space set. In the above, the search space set is referred to as a search space, the common search space set is referred to as a common search space, and the UE-specific search space set is referred to as a UE-specific search space. The terminal device 1 monitors PDCCH candidates with one or more of the following search space sets.
--Type0-PDCCH common search (a Type0-PDCCH common search)
space set, type 0 common search space): This search space set is a search space SIB1 (searchSpaceSIB1) indicated by pdcch-ConfigSIB1 or PDCCH-ConfigCommon indicated by MIB, which is a parameter of the upper layer.
) Or PDCCH-ConfigComcon is set by searchSpaceZero. This search space is the SI in the primary cell
-For monitoring the DCI format of CRC scrambled with RNRI.
--Type0A-PDCCH common search space set (a Type0A-PDCCH common search space set): This search space set is set by the search space (searchSpaceOtherSystemInformation) indicated by PDCCH-ConfigCommon, which is a parameter of the upper layer. Will be done. This search space is for monitoring the DCI format of the SI-RNRI scrambled CRC in the primary cell.
--Type1 PDCCH common search space set (a Type1-PDCCH common search)
space set, type 1 common search space): This search space set is set by the upper layer parameter, the search space (ra-SearchSpace) for the random access procedure represented by PDCCH-ConfigCommon. This search space is for monitoring the DCI format of the CRC scrambled with RA-RNRI or TC-RNTI in the primary cell. The Type 1 PDCCH common search space set is a search space set for random access procedures.
--Type2-PDCCH common search (a Type2-PDCCH common search)
space set, type 2 common search space): This search space set is set by the upper layer parameter, the pagingSearchSpace for the paging procedure represented by PDCCH-ConfigCommon. This search space is for monitoring the DCI format of the P-RNTI scrambled CRC in the primary cell.
--Type3 PDCCH common search space set (a Type3-PDCCH common search)
space set, type 3 common search space): In this search space set, the search space type indicated by PDCCH-Config, which is a parameter of the upper layer, is set by the common search space (SearchSpace). This search space is IN
It is for monitoring the DCI format of CRC scrambled with T-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, or TPC-SRS-RNTI. For the primary license, it is for monitoring the DCI format of the CRC scrambled with C-RNTI, CS-RNTI (s), or MCS-C-RNTI.
--UE-specific search space set: In this search space set, the search space type indicated by PDCCH-Config, which is a parameter of the upper layer, is set by the UE-specific search space (SearchSpace). .. This search space is for monitoring the DCI format of the CRC scrambled with C-RNTI, CS-RNTI (s), or MCS-C-RNTI.

If the terminal device 1 is provided with one or more search space sets by the corresponding upper layer parameters (searchSpaceZero, searchSpaceSIB1, searchSpaceOtherSystemInformation, pagingSearchSpace, ra-SearchSpace, etc.), the terminal device 1 is C-RNTI or If CS-RNTI is provided, terminal device 1 monitors DCI format 0_0 with C-RNTI or CS-RNTI and PDCCH candidates for DCI format 1_0 in one or more of its search space sets. You may.

The BWP setting information is divided into DL BWP setting information and UL BWP setting information. The BWP setting information includes an information element bwp-Id (BWP identifier). The BWP identifier included in the DL BWP setting information is used to identify (reference) the DL BWP in a serving cell. The BWP identifier included in the UL BWP setting information is used to identify (reference) the UL BWP in a serving cell. The BWP identifier is given to each of DL BWP and UL BWP. For example, the identifier of the BWP corresponding to the DL BWP may be referred to as the DL BWP index. The identifier of the BWP corresponding to the UL BWP may be referred to as the UL BWP index. The initial DL BWP is referenced by identifier 0 of the DL BWP. The initial UL BWP is referenced by the UL BWP identifier 0. Each of the other DL BWPs or other UL BWPs may be referenced from identifier 1 of the BWP to maxNrovBWPs. That is, the BWP identifier (bwp-Id = 0) set to 0 is associated with the initial BWP and cannot be used for other BWPs. maxNrovBWPs is the maximum number of BWPs per serving cell, which is 4. That is, the value of the identifier of the other BWP takes a value from 1 to 4. The setting information of the other upper layer is associated with a specific BWP by using the BWP identifier. The fact that DL BWP and UL BWP have the same BWP identifier may mean that DL BWP and UL BWP are paired.

In the terminal device 1, one primary cell and up to 15 secondary cells may be set.

The procedure for transmitting the PUSCH will be described below.

The repeated transmission of PUSCH to which the first repeated transmission method according to the present embodiment is applied will be described. The first repetitive transmission method is a method in which one PUSCH (for example, one transport block) is continuously and repeatedly transmitted in the time domain in an uplink resource that can be used for PUSCH transmission. For example, a plurality of time resources are allocated to one transport block, and the transport block is encoded and transmitted according to each of the plurality of time resources, so that the same transport block is transmitted. It is repeatedly transmitted as many times as the number of time resources used for.

The terminal device 1 may transmit the corresponding PUSCH by detecting a PDCCH including DCI format 0_0, DCI format 0_1, or DCI format 0_2. That is, the corresponding PUSCH may (or may be indicated) scheduled according to its DCI format (DCI). For example, the terminal device 1 transmits a PUSCH scheduled in DCI format 0_2 in a CRC scrambled PDCCH with a predetermined RNTI (eg, C-RNTI, MCS-C-RNTI or CS-RNTI with NDI = 1). In this case, the PUSCH may be transmitted by applying the first repetitive transmission method. For example, the terminal device 1 transmits a PUSCH scheduled in DCI format 0_2 in a CRC scrambled PDCCH with a predetermined RNTI (eg, C-RNTI, MCS-C-RNTI or CS-RNTI with NDI = 1). In this case, if a predetermined parameter (for example, push-Aggregation-v16) is set in the upper layer, the PUSCH may be transmitted by applying the first repetitive transmission method. For example, the terminal device 1 schedules the terminal device 1 in DCI format 0-1 in a CRC scrambled with a predetermined RNTI (eg, C-RNTI, MCS-C-RNTI or CS-RNTI with NDI = 1). When transmitting the PUSCH, if a predetermined parameter (for example, push-Aggregation-v16) is set in the upper layer, the first repetitive transmission method may be applied to transmit the PUSCH. The PUSCH may also be scheduled by the RAR UL grant included in the RAR message. The scheduled start position (start symbol) of the PUSCH may be defined by S. The starting symbol S of the PUSCH may be the symbol index of the first symbol to which the PUSCH in a slot is transmitted (mapped). For example, if the slot contains 14 symbols, the values available for S may be 0 to 13. The start symbol S indicates the number of the symbol from the beginning of the slot. For example, when the value of S is 2, the terminal device 1 may transmit the PUSCH from the third symbol of a certain slot. The number of consecutive symbols of the scheduled PUSCH is referred to as L. The number L of consecutive symbols is counted from the start symbol S. The determination of S and L assigned to PUSCH will be described later. However, when the PUSCH is transmitted by applying the first repetitive transmission method, S may be the index of the start symbol of the first PUSCH to be repeatedly transmitted. However, when the PUSCH is transmitted by applying the first repetitive transmission method, L may be the nominal number of symbols of the PUSCH to be repeatedly transmitted. For example, when the PUSCH is transmitted by applying the first repetitive transmission method, the number of symbols used for one repetitively transmitted PUSCH and the number of symbols indicated by L may be different values. For example, when the PUSCH is transmitted by applying the first repetitive transmission method, the maximum value of the number of symbols that can be used for one repeatedly transmitted PUSCH may be L. The terminal device 1 may transmit a plurality of corresponding PUSCHs by detecting DCI format 0_2.

The type of PUSCH mapping may have PUSCH mapping type A and PUSCH mapping type B. In PUSCH mapping type A, the value of S is 0. L takes a value from 4 to 14. However, the sum of S and L takes a value from 4 to 14. In PUSCH mapping type B, S takes a value from 0 to 13. L takes a value from 1 to 14. The sum of S and L may be limited to a value between 1 and 14. However, the sum of S and L may not be limited under predetermined conditions. For example, when a certain upper layer parameter is set, the sum of S and L is not limited, and when it is not set, the sum of S and L may be limited. However, when a certain upper layer parameter is set, a different mapping type (for example, PUSCH mapping type C) may be set instead of PUSCH mapping type B. The PUSCH mapping type C may be a mapping type corresponding to the allocation in mini-slot units as in the PUSCH mapping type B. For example, in PUSCH mapping type B, the sum of S and L is limited to a value from 1 to 14, and in PUSCH mapping type C, the sum of S and L may not be limited. The following description regarding PUSCH mapping type B may be applied to PUSCH mapping type C.

The position of the DMRS symbol for PUSCH may depend on the type of PUSCH mapping. The position of the first DM-RS symbol for the PUSCH may depend on the type of PUSCH mapping. In PUSCH mapping type A, the position of the first DMRS symbol may be indicated in the upper layer parameter dmrs-TypeA-Position. For example, dmrs-TypeA-Position is set to either'pos2'or'pos3'. For example, if dmrs-TypeA-Position is set to'pos2', the position of the first DMRS symbol for PUSCH may be the third symbol in the slot. For example, if dmrs-TypeA-Position is set to'pos3', the position of the first DMRS symbol for PUSCH may be the fourth symbol in the slot. In PUSCH mapping type B and PUSCH mapping type C, the position of the first DMRS symbol may be the first symbol of the assigned PUSCH.

Hereinafter, a method for specifying the PUSCH time domain resource allocation will be described.

The base station apparatus 3 may be scheduled to cause the terminal apparatus 1 to transmit the PUSCH by DCI. The terminal device 1 may transmit the PUSCH by detecting the DCI addressed to its own device. When specifying the PUSCH time domain resource allocation, the terminal device 1 determines the resource allocation table to be applied to the PUSCH. The resource allocation table contains one or more PUSCH time domain resource allocation settings. The terminal device 1 may select one PUSCH time domain resource allocation setting in the determined resource allocation table based on the value shown in the'Time domain resource assignment'field included in the DCI that schedules the PUSCH. That is, the base station apparatus 3 determines the resource allocation of the PUSCH for the terminal apparatus 1, generates the value of the'Time domain resource assignment'field, and outputs the DCI including the'Time domain resource assignment'field to the terminal apparatus 1. Send to. The terminal device 1 specifies the resource allocation of the PUSCH time domain based on the value set in the'Time domain resource association'field.

8 and 9 are tables that define the selection rule of the resource allocation table applied to the PUSCH time domain resource allocation. The terminal device 1 may determine / select whether to use the table shown in FIG. 8 or the table shown in FIG. 9 for PUSCH time domain resource allocation based on the upper layer parameters, DCI, and / or RNTI. Good. For example, when the upper layer parameter push-tdra-r16 is set, the terminal device 1 determines / selects and sets the resource allocation table to be applied to the PUSCH time domain resource allocation using the table shown in FIG. If not, the terminal device 1 may determine / select the resource allocation table to be applied to the PUSCH time domain resource allocation using the table shown in FIG. However, the tables of FIGS. 8 and 9 may be combined into one table. The terminal device 1 allocates the PUSCH time domain resource based on the presence / absence of the RNTI, PDCCH search space, the predetermined upper layer parameter push-TimeDomainAllocationList or push-TimeDomainAllocationList2, and / or the setting or presence / absence of the upper layer parameter push-tdra-r16. You may decide / select the resource allocation table to be applied to. The resource allocation table contains settings for one or more PUSCH time domain resource allocations. In the present embodiment, the resource allocation table is classified into (I) a predefined resource allocation table and (II) a resource allocation table set from the RRC signal of the upper layer. The predefined resource allocation table is defined as the default PUSCH time domain resource allocation A and / or the default PUDSCH time domain resource allocation B. Hereinafter, the default PUSCH time domain resource allocation A is referred to as a PUSCH default table A, and the default PUSCH time domain resource allocation B is referred to as a PUSCH default table B.

FIG. 10 is a diagram showing an example of the PUSCH default table A with respect to NCP (Normal Cyclic Prefix). In FIG. 10, the number of rows in the PUSCH default table A is 16, and each row shows the PUSCH time domain resource allocation configuration. 10, indexed row (indexed row) is, PUSCH mapping type, slot offset _{K 2,} start symbol S of the PUSCH in the slot between the PDCCH and its PUSCH including DCI, and are continuous allocation Define the number of symbols L. FIG. 11 is a diagram showing an example of PUSCH default table B for NCP. In FIG. 11, the number of rows in the PUDSCH default table B is 16, and each row shows the setting of the PUSCH time domain resource allocation. 11, the row with index, PDCCH and slot offset _{K 2} between the PUSCH, the start symbol S of the PUSCH in the slot, the symbol number L is continuous allocation, and / or PUSCH Repetitive, including DCI Define the number of return transmissions Rep. However, the number of rows in the PUSCH default table A and / or the PUSCH default table B does not have to be 16. For example, the number of rows in the PUSCH default table A and the PUSCH default table B may be different values. That is, the terminal device 1 may use PUSCH default tables with different numbers of rows depending on the settings of the upper layer parameters, the information contained in the DCI field, and / or RNTI. For example, the terminal device 1 may use a PUSCH default table with a different number of rows depending on the number of bits constituting the time domain resource allocation field indicated by DCI. However, the columns constituting the PUSCH default table A and the columns constituting the PUSCH default table B may be different. For example, any of the indexed row, PUSCH mapping type, offset K2, start symbol S, and number of symbols L shown in the PUSCH default table A may not be shown in the PUSCH default table B, and vice versa. Columns may be shown only in the PUSCH default table B.

Hereinafter, the slot offset K ₂ will be described.

As described above, in the subcarrier interval setting μ, the slots are counted in ascending order from 0 to N ^ {subframe, μ} _ {slot} -1 in the subframe, and from 0 to N ^ {frame, in the frame. It is counted in ascending order up to μ} _ {slot} -1. K ₂ is the number of slots based on the PUSCH subcarrier spacing. K ₂ can take a value from 0 to 32. In a subframe or frame, slot numbers are counted from 0 in ascending order. The slot number n of the subcarrier interval setting of 15 kHz corresponds to the slot numbers 2n and 2n + 1 of the subcarrier interval setting of 30 kHz.

When the terminal device 1 detects a DCI that schedules a PUSCH, the slot assigned to that PUSCH is given by ^{floor (n * 2 μPUSCH} / 2 ^μPDCCH ) + K _2. The function floor (A) outputs the largest integer that does not exceed A. n is the slot in which the PDCCH that schedules the PUSCH is detected. μ _PUSCH is a subcarrier interval setting for PUSCH. μ _PDCCH is a subcarrier interval setting for PDCCH.

The resource allocation table set from the RRC signal of the upper layer may be given by the signal push-TimeDomainAllocationList of the upper layer. The information element PUSCH-TimeDomainResourceAllocation indicates the setting of PUSCH time domain resource allocation. The PUSCH-TimeDomainRelocationAllocation may be used to set the time domain relationship between the PDCCH containing DCI and the PUSCH. The push-TimeDomainAllocationList contains one or more information elements PUSCH-TimeDomainRelocationAllocation. That is, the push-TimeDomainAllocationList is a list containing one or more elements (information elements). One information element PUSCH-TimeDomainRelocationAllocation may also be referred to as one entry (or one row). FIG. 12 is a diagram showing an example of the parameter configuration of PUSCH-TimeDomainRelocationAllocation, that is, each entry. Each entry may be defined by k2, mappingType, and startSymbolAndLength. k2 indicates the slot offset between the PDCCH containing DCI and its scheduled PUSCH. If the PUSCH-TimeDomainRelocationAllocation does not indicate k2, the terminal device 1 may assume that the value of k2 is a predetermined value depending on the subcarrier interval used for transmitting the PUSCH. For example, the terminal device 1 assumes that the value of k2 is 1 when the subcarrier interval of PUSCH is 15 kHz or 30 kHz, and the value of k2 is 2 when the subcarrier interval of PUSCH is 60 kHz. It may be assumed that the value of k2 is 3 when the subcarrier interval of PUSCH is 120 kHz. The mappingType indicates either PUSCH mapping type A or PUSCH mapping type B. startSymbolAndLength is an index that gives a valid combination of the starting symbol S of PUSCH and the number of consecutively allocated symbols L. The startSymbolAndLength may be referred to as a start and length indicator (SLIV). That is, unlike the default table, which directly defines the start symbol S and the continuous symbol L, the start symbol S and the continuous symbol L are given based on SLIV. The base station apparatus 3 can set the value of SLIV so that the time domain resource allocation of PUSCH does not exceed the slot boundary.

FIG. 13 is a diagram showing an example of calculating SLIV.

In FIG. 13, 14 is the number of symbols contained in one slot. FIG. 13 shows an example of calculating SLIV in the case of NCP (Normal Cyclic Prefix). The value of SLIV is calculated based on the number of symbols contained in the slot, the starting symbol S, and the number of consecutive symbols L. Here, the value of L is 1 or more and does not exceed (14-S). When calculating SLIV by ECP, 6 and 12 are used instead of the values 7 and 14 in FIG.

The resource allocation table set from the RRC signal of the upper layer is the signal pus of the upper layer.
It may be given by ch-TimeDomainAllocationList2. push-TimeDomainAllocationList2 may be a different parameter from push-TimeDomainAllocationList2. The information element PUSCH-TimeDomainRelocationAllocation2 indicates the setting of PUSCH time domain resource allocation. PUSCH-TimeDomainRelocationAllocation2 may be used to set the time domain relationship between PDCCH including DCI and PUSCH. push-TimeDomainAllocationList2 includes one or more information elements PUSCH-TimeDomainRelocationAllocation2. That is, push-TimeDomainAllocationList2 is a list including one or more elements (information elements). One information element PUSCH-TimeDomainRelocationAllocation2 may also be referred to as one entry (or one row).

FIG. 14 is a diagram showing an example of the parameter configuration of PUSCH-TimeDomainRelocationAllocation 2, that is, each entry. Each entry may be defined by k2, mappingType, startSymbol, lens and / or repetition. However, PUSCH-TimeDomainRelocationAllocation2 may include a parameter mappingType indicating the mapping type. k2 indicates the slot offset between the PDCCH containing DCI and its scheduled PUSCH. If k2 is not provided (not present / absolute) to PUSCH-TimeDomainValueAllocation2, the terminal device 1 assumes that the value of k2 is a predetermined value according to the subcarrier interval used for transmitting PUSCH. May be good. For example, it is assumed that the value of k2 is 1 when the subcarrier interval of PUSCH is 15 kHz or 30 kHz, and the value of k2 is assumed to be 2 when the subcarrier interval of PUSCH is 60 kHz. However, when the subcarrier interval of PUSCH is 120 kHz, it may be assumed that the value of k2 is 3. mappingType indicates a PUSCH mapping type. For example, mappingType indicates either PUSCH mapping type A or PUSCH mapping type B. startSymbol indicates the start symbol S of PUSCH. For example, startSymbol indicates an integer of 0 to 13. The length indicates the length of one PUSCH, that is, the number of symbols L assigned continuously. For example, L represents any one of a plurality of integer values. However, L indicated by length may be a nominal length (number of symbols) to which PUSCH is virtually continuously allocated regardless of whether a symbol is available or not, and is actually The symbol used for PUSCH transmission and the value of L may be different. However, L represented by lens may be the number of symbols to which PUSCH is continuously assigned to the available upling symbols. Repetition indicates the number of repeated transmissions Rep of PUSCH. For example, repetition may indicate any one of integers from 2 to 8. However, the Rep indicated by repetition may be the nominal number of repetitions of PUSCH, and the number of repetitions of PUSCH and the value of Rep may actually be different. However, when the repetition is not provided (not present / present) to the PUSCH-TimeDomainRelocationAllocation 2, the terminal device 1 may assume that the repetition value is 1 (the number of times the PUSCH is repeatedly transmitted is 1). However, when the repetition is not provided to the PUSCH-TimeDomainValueAllocation2, the terminal device 1 may select / determine the number of repeated transmissions based on the value of the upper layer parameter repetitionComon. However, the upper layer parameter repetitionComon indicates the number of times the PUSCH is repeatedly transmitted, which is commonly used for all entries. However, when the repetition is not provided in the PUSCH-TimeDomainRelocationAllocation2 and the upper layer parameter reproductionComon is not provided / set, the terminal device 1 has a repetition value of 1 (the number of times the PUSCH is repeatedly transmitted is 1). ) May be assumed. However, the values of startSymbol, lens and / or repetition may be given by one parameter using joint coding. For example, a parameter may be used as a candidate value excluding the combination of unused startSymbol, lens and / or repetition.

The resource allocation table set from the RRC signal of the upper layer may be given by the signal push-TimeDomainAllocationList3 of the upper layer. push-TimeDomainAllocationList3 may have different parameters from push-TimeDomainAllocationList and push-TimeDomainAllocationList2. The information element PUSCH-TimeDomainRelocationAllocation3 indicates the setting of PUSCH time domain resource allocation. PUSCH-TimeDomainRelocationAllocation 3 may be used to set the time domain relationship between PDCCH including DCI and PUSCH. push-TimeDomainAllocationList3 includes one or more information elements PUSCH-TimeDomainRelocationAllocation3. That is, push-TimeDomainAllocationList3 is a list containing one or more elements (information elements). One information element PUSCH-TimeDomainRelocationAllocation3 may also be referred to as one entry (or one row).

FIG. 15 is a diagram showing an example of the parameter configuration of PUSCH-TimeDomainRelocationAllocation 3, that is, each entry. Each entry consists of a PUSCH-TDRAperRep having any number of elements from 1 to maxNrovReps, and each PUSCH-TDRAperRep may be defined by k2 and / or startSymbolAndLength. k2 indicates the slot offset between the PDCCH containing DCI and its scheduled PUSCH. If k2 is not provided (not present / absent) to PUSCH-TDRAperRep, the terminal device 1 assumes that the value of k2 is a predetermined value according to the subcarrier interval used for transmitting PUSCH. May be good. For example, it is assumed that the value of k2 is 1 when the subcarrier interval of PUSCH is 15 kHz or 30 kHz, and the value of k2 is assumed to be 2 when the subcarrier interval of PUSCH is 60 kHz. However, when the subcarrier interval of PUSCH is 120 kHz, it may be assumed that the value of k2 is 3. startSymbolAndLength is an index that gives a valid combination of the starting symbol S of PUSCH and the number of consecutively allocated symbols L. The startSymbolAndLength may be referred to as a start and length indicator (SLIV). That is, unlike the default table, which directly defines the start symbol S and the continuous symbol L, the start symbol S and the continuous symbol L are given based on SLIV. The base station apparatus 3 can set the value of SLIV so that the time domain resource allocation of PUSCH does not exceed the slot boundary. The value of SLIV is calculated based on the number of symbols contained in the slot, the starting symbol S, and the number of consecutive symbols L, as in the equation in FIG.

Upper layer signals push-TimeDomainAllocationList, push-TimeDomainAllocationList2, and / or push-TimeDomainAllocationList3 may include cell-specific RRC parameters push-ContextCommon and / or terminal device 1 (UE) -specific RRC parameters. .. The push-ConfigCommon is used to set cell-specific parameters for PUSCH for a BWP. The push-Config is used to set terminal device 1 (UE) specific parameters for PUSCH for a BWP. However, the terminal device 1 determines whether the resource allocation table used for the PUSCH time domain resource allocation is given by push-TimeDomainAllocationList, push-TimeDomainAllocationList2, or push-TimeDomainAllocationList3 by the upper layer parameter, DC. And / or may be determined based on RNTI. However, in the terminal device 1, each entry in the push-TimeDomainAllocationList, the push-TimeDomainAllocationList2, or the push-TimeDomainAllocationList3 is given by PUSCH-TimeDomainALocationList3, or is given by PUSCH-TimeDomainRelocationAlocation, given by PUSCH-TimeDomainRelocationAllocation May be determined based on the upper layer parameters, DCI and / or RNTI.

The terminal device 1 detects the DCI that schedules the PUSCH. The slot to which the PUSCH is transmitted is given by ^{floor (n * 2 μPUSCH} / 2 ^μPDCCH ) + K _2. n is a slot in which the PDCCH that schedules the PUSCH is detected. μ _PUSCH is a subcarrier interval setting for PUSCH. μ _PDCCH is a subcarrier interval setting for PDCCH.

In FIGS. 10 and 11, _{the value of K 2} is either j, j + 1, j + 2, or j + 3. The value of j is a value specified for the PUSCH subcarrier interval. For example, if the subcarrier spacing to which PUSCH is applied is 15 kHz or 30 kHz, the value of j may be one slot. For example, if the subcarrier spacing to which PUSCH is applied is 60 kHz, the value of j may be 2 slots. For example, if the subcarrier spacing to which PUSCH is applied is 120 kHz, the value of j may be 3 slots.

As described above, the terminal device 1 may determine which resource allocation table is applied to the PUSCH time domain resource allocation based on the table as shown in FIG.

As Example A, terminal device 1 may determine a resource allocation table to apply to the PUSCH scheduled by the RAR UL grant. When the push-ConfigCommon includes the push-TimeDomainAllocationList2 for the terminal device 1, the terminal device 1 may determine the resource allocation table set from the RRC signal of the upper layer. The resource allocation table is given by push-TimeDomainAllocationList2 included in push-ConfigCommon. Further, when the push-ConfigCommon does not include the push-TimeDomainAllocationList2 with respect to the terminal device 1, the terminal device 1 may determine the PUSCH default table B. That is, the terminal device 1 may apply to the determination of the PUSCH time domain resource allocation by using the default table B showing the setting of the PUSCH time domain resource allocation.

As Example B, terminal device 1 may detect DCI in any common search space associated with CORESET # 0. The detected DCI is C-RNTI, MCS-
A CRC scrambled by any of C-RNTI, TC-RNTI, or CS-RNTI is added. Then, the terminal device 1 may determine the resource allocation table to be applied to the PUSCH scheduled by the DCI. When the push-Context Allocation List 2 is included in the terminal device 1, the terminal device 1 assigns a resource allocation table to be applied to the PUSCH time domain resource allocation from the push-Time Domain Allocation List 2 provided by the push-Config Command. You may decide on the table. Further, when the push-ConfigComcon does not include the push-TimeDomainAllocationList2, the terminal device 1 may determine the resource allocation table applied to the PUSCH time domain resource allocation as the PUSCH default table B.

As Example C, terminal device 1 may detect DCI in any common search space associated with (I) CORESET # 0 or (II) UE-specific search space. The detected DCI is added with a CRC scrambled by any of C-RNTI, MCS-C-RNTI, TC-RNTI, and CS-RNTI. Then, the terminal device 1 may determine the resource allocation table to be applied to the PUSCH scheduled by the DCI. When the push-Context includes the push-Time Domain Allocation List 2 for the terminal device 1, the terminal device 1 assigns the resource allocation table applied to the PUSCH time domain resource allocation to the resource allocation given from the push-Time Domain Allocation List 2 provided by the push-Config. You may decide on the table. That is, when push-Config includes push-TimeDomainAllocationList2, the terminal device 1 uses push-Location provided by push-Config with push-Control, regardless of whether the push-ConfigCommon includes push-TimeDomainAllocationList2 or not. It may be applied to the determination of space resource allocation. Further, when the push-Config does not include the push-TimeDomainAllocationList2 and the push-ConfigComcon includes the push-TimeDomainAllocationList2, the terminal device 1 sets the resource allocation table to be applied to the PUSCH time domain resource allocation by the pushCoon. It may be determined to the resource allocation table given by the provided push-TimeDomainAllocationList2. That is, the terminal device 1 applies to the determination of the PUSCH time domain resource allocation by using the push-Time Domain Allocation List 2 provided by the push-ConfigCommon. Further, when the push-Config does not include the push-TimeDomainAllocationList2 and the push-ConfigComon does not include the push-TimeDomainAllocationList2, the terminal device 1 sets the resource allocation table to be applied to the PUSCH time domain resource allocation as the PUSCH default table May be decided.

The terminal device 1 may select one PUSCH time domain resource allocation setting in the determined resource allocation table based on the value shown in the'Time domain resource assignment'field included in the DCI that schedules the PUSCH. For example, if the resource allocation table applied to the PUSCH time domain resource allocation is the PUSCH default table A (or PUSCH default table B), the value m shown in the'Time domain resource assignment'field is the PUSCH default table A (or PUSCH default table B). The row index (low index) m + 1 of the default table B) may be shown. At this time, the PUSCH time domain resource allocation is the setting of the time domain resource allocation indicated by the row index m + 1. The terminal device 1 transmits the PUSCH assuming the setting of the time domain resource allocation indicated by the row index m + 1. For example, if the value m shown in the'Time domain reservation assignment'field is 0, the terminal device 1 uses the PUSCH time domain resource allocation setting for row index 1 of the PUSCH default table A (or PUSCH default table B). To identify the time-domain resource allocation of the PUSCH scheduled by the DCI.

Further, when the resource allocation table applied to the PUSCH time domain resource allocation is the resource allocation table given by push-TimeDomainAllocationList, the value m shown in the'Time domain resource allocation'field is the (m + 1) th in the list push-TimeDomainAllocationList. Corresponds to the element (entry, row) of. For example, if the value m shown in the'Time domain response assert'field is 0, the terminal device 1 may refer to the first element (entry) in the list push-Time Domain Allocation List. For example, if the value m shown in the'Time domain resource association'field is 1, the terminal device 1 may refer to the second element (entry) in the list push-Time Domain Allocation List.

Further, when the resource allocation table applied to the PDSCH time domain resource allocation is the resource allocation table given by push-TimeDomainAllocationList2, the value m shown in the'Time domain resource allocation' field is (m) in the list push-TimeDomainAllocationList2. Corresponds to the element (entry, row) of. For example, if the value m shown in the'Time domain resource association'field is 0, the terminal device 1 may refer to the first element (entry) in the list push-Time Domain Allocation List 2. For example, if the value m shown in the'Time domain resource association'field is 1, the terminal device 1 may refer to the second element (entry) in the list push-Time Domain Allocation List 2.

Hereinafter, the number of bits (size) of the'Time domain resource'field included in the DCI will be described.

The terminal device 1 may transmit the corresponding PUSCH by detecting a PDCCH including DCI format 0_0, DCI format 0_1 or DCI format 0_2. The number of bits in the'Time domain resource access' field included in the DCI format 0_0 may be a fixed number of bits. For example, this fixed number of bits may be 6. That is, the size of the'Time domain resource association'field included in the DCI format 0_0 is 6 bits. Further, the size of the'Time domain resource assert'field included in DCI format 0_1 or DCI format 0_2 may be a variable number of bits. For example, the number of bits in the'Time domain resource association'field included in DCI format 0_1 or DCI format 0_2 may be any of 0, 1, 2, 3, 4, 5, and 6.

Hereinafter, determination of the number of bits of the'Time domain resource assignment'field included in DCI format 0_1 or DCI format 0_2 will be described.

The number of bits in the'Time domain resource association'field _{may be given as ceil (log 2} (I)). When push-TimeDomainAllocationList (or push-TimeDomainAllocationList2, push-TimeDomainAllocationList3) is set (provided) for the terminal device 1, the value of I is included in push-TimeDomainAllocationList (or push-TimeDomainAllocationAllocationList (or push-TimeDomainAllocationList3)). It may be a number. If the push-TimeDomainAllocationList (or push-TimeDomainAllocationList2, push-TimeDomainAllocationList3) is not set (provided) for the terminal device 1, the value of I is the number of rows in the PUSCH default table A (or PUSCH default table B). Good. That is, when push-TimeDomainAllocationList (or push-TimeDomainAllocationList2, push-TimeDomainAllocationList3) is set for the terminal device 1, the number of bits in the'Time domain recessAnceDomenceDopathyDocation'field is set to It may be given based on the number of entries contained in TimeDomainAllocationList3). If push-TimeDomainAllocationList (or push-TimeDomainAllocationList2, push-TimeDomainAllocationList3) is not set for the terminal device 1, the number of bits in the'Time domain response assignment List'field is the default table in the default table. It may be given based on the number of rows. Specifically, when push-Configuration includes push-TimeDomainAllocationList (or push-TimeDomainAllocationList2, push-TimeDomainAllocationList3), the value of I is provided by push-ContextDomationDomeDomationDomeDomationDomeDomationDome ) May be the number of entries. Further, PUSCH-Config does not contain pusch-TimeDomainAllocationList (or pusch-TimeDomainAllocationList2, pusch-TimeDomainAllocationList3), and, if pusch-ConfigCommon comprises pusch-TimeDomainAllocationList (or pusch-TimeDomainAllocationList2, pusch-TimeDomainAllocationList3), the I The value may be the number of entries contained in the push-TimeDomainAllocationList (or push-TimeDomainAllocationList2, push-TimeDomainAllocationList3) provided by the push-ConfigComcon. Also, if the PUSCH-Config does not contain pusch-TimeDomainAllocationList (or pusch-TimeDomainAllocationList2, pusch-TimeDomainAllocationList3), and, where pusch-ConfigCommon does not contain pusch-TimeDomainAllocationList (or pusch-TimeDomainAllocationList2, pusch-TimeDomainAllocationList3), I The value of may be the number of rows contained in the PUSCH default table A (or PUSCH default table B).

Hereinafter, the repeated transmission of PUSCH (also referred to as repetition, repetition transmission, or aggregation transmission) in the present embodiment will be described. The repeated transmission of PUSCHs in the present embodiment is a repetitive transmission in which a plurality of PUSCHs are continuously transmitted to one or a plurality of slots by one uplink grant, and is a mini-slot level repetition. ), Or multi-segment transmission. That is, the terminal device 1 may repeatedly transmit one PUSCH in the same slot a plurality of times. However, one PUSCH may be a PUSCH generated from one transport block. For example, repeatedly transmitting one PUSCH means that in a plurality of time resources, one transport block is encoded according to the size of each time resource, and each of the generated plurality of PUSCHs is subjected to the plurality of times. It may be transmitted by each of the resources.

The terminal device 1 has a PUSCH given by an upper layer parameter notified by an RRC message (for example, the above-mentioned push-Time Domain Allocation List 2) and a field of downlink control information received by the PDCCH (for example, the above-mentioned Time domain reservation symbol field). Repeat PUSCH with the start symbol S of the time domain resource for, the nominal duration of the PUSCH (which may be the number of symbols) L, and / or the time resource determined based on the number of repeated transmissions Rep. Send. That is, the terminal device 1 is a PUSCH that repeatedly transmits from S, L, and / or Rep given by the upper layer parameter notified by the RRC message and the field of downlink control information received by PDCCH. Each start symbol, duration and / or number of repeat transmissions may be determined. However, S, L, and / or Rep may be the nominal start symbol, the nominal period, and / or the nominal number of repeat transmissions, respectively. For example, S, L, and / or Rep may be different from the start symbol, transmission period, and / or number of repetitions used for the actual transmission of PUSCH, respectively. The terminal device 1 has the start symbols S and L (nominal period) of the time domain resource for PUSCH given by the upper layer parameter notified by the RRC message and the field of downlink control information received by the PDCCH. , And / or Rep (nominal number of iterations) and / or the placement of uplink and flexible symbols available for slot boundary position and / or PUSCH transmission, each actual of the PUSCH performing repeat transmission. The start symbol, the actual time period and / or the actual number of repeat transmissions may be determined. For example, the arrangement of uplink symbols available for PUSCH transmission may be set from the upper layer slot format setting information transmitted in the RRC message and / or the slot format setting DCI transmitted in the PDCCH. The terminal device 1 is one based on the resource allocation information indicated by the RRC message and / or DCI, the upper layer slot format setting information transmitted by the RRC message, and / or the slot format setting DCI transmitted by PDCCH. The actual start symbol, actual period, and / or actual number of iterations of each of the multiple PUSCHs generated from the transport block may be determined.

FIG. 16 shows an example of symbols that can be used for PUSCH transmission set based on the upper layer slot format setting information transmitted by the RRC message according to the present embodiment and the slot format setting DCI transmitted by PDCCH. It is a figure.

In FIG. 16, for a slot composed of 14 symbols, the first 6 symbols are indicated as downlink symbols (DL by RRC) in the upper layer slot format setting information, and the next 4 symbols are flexible symbols (Flexible by RRC). ), And the last four symbols are indicated as uplink symbols (UL by RRC). In this case, in the terminal device 1, the symbol indicated as the downlink symbol in the upper layer slot format setting information may be a symbol that cannot be used for arranging the time resource (PUSCH resource) for PUSCH, and the upper layer slot format setting Symbols indicated as flexible symbols or uplink symbols in the information may be symbols available for PUSCH resource placement. For example, the symbol indicated as the downlink symbol in the upper layer slot format setting information may be excluded from the resources available for PUSCH transmission using the first iterative transmission method, and is flexible in the upper layer slot format setting information. A plurality of PUSCH resources may be allocated consecutively in time for a symbol indicated as a symbol or an uplink symbol. However, regardless of the content of the upper layer slot format setting information, the terminal device 1 allocates the PUSCH resource to all one or a plurality of symbols continuously in time, and then the upper layer slot format setting information. The PUSCH resource assigned to the symbol indicated as the downlink symbol in may be postpone assigned to the uplink symbol or flexible symbol that is available next to the assigned symbol. A plurality of PUSCH resources allocated based on the upper layer slot format setting information may be referred to as a plurality of temporary PUSCH resources. The plurality of temporary PUSCH resources may be determined based on the resource allocation information (for example, S, L and / or Rep) included in the DCI and the upper layer slot format setting information. The terminal device 1 may determine a plurality of temporary PUSCH resources based on the resource allocation information (for example, S, L and / or Rep) included in the DCI and the upper layer slot format setting information.

A time resource (PUSCH resource) for PUSCH using the first repetitive transmission method is allocated to the symbol indicated as a flexible symbol in the upper layer slot format setting information in FIG. 16, but the PUSCH resource is used. Of the placed symbols, the PUSCH resource allocated when the slot format setting DCI transmitted by the PDCCH indicates that it is not available for the transmission of the PUSCH is dropped at the symbol. However, "dropping" may mean that the terminal device 1 does not use the symbol for PUSCH transmission. For example, a symbol indicated by the slot format setting DCI as unavailable for PUSCH transmission may be a symbol set by the slot format setting DCI as a flexible symbol or a downlink symbol. For example, if a PUSCH resource includes a symbol indicated as an uplink symbol and a downlink symbol (or flexible symbol) in the slot format setting DCI, the terminal device 1 includes a downlink symbol among the PUSCH resources. Drop the time resource of the symbol indicated as (or flexible symbol), and place and send the PUSCH only for the time resource of the uplink symbol and the symbol indicated.

However, since a specific slot format index (for example, index 255) of the slot format setting DCI is shown, when the slot format set in the upper layer slot format setting information is followed, the terminal device 1 sets the flexible symbol to PUSCH. It may be a symbol that can be used for transmission.

However, if the terminal device 1 is set to monitor the slot format setting DCI by the RRC parameter and does not detect the slot format setting DCI, the terminal device 1 is flexible with the upper layer slot format setting information. You may drop all PUSCH resources that contain the symbols shown as symbols. In other words
The slot format setting DCI set to be monitored by the terminal device 1 cannot be detected, and a PUSCH resource displays both the symbol indicated as the flexible symbol and the symbol indicated as the uplink symbol in the upper layer slot format setting information. When included, the terminal device 1 does not have to drop all the PUSCH resources and transmit the PUSCH with the PUSCH resources. That is, when the terminal device 1 is set to monitor the slot format setting DCI, the terminal device 1 has a plurality of temporary PUSCH resources (for example, the first symbol and the number of symbols) and a plurality of slot format setting DCIs. The actual PUSCH resource (for example, the first symbol and the number of symbols) is determined by using the information shown in the upper layer slot format setting information when the terminal device 1 does not detect the slot format setting DCI. Determining multiple actual PUSCH resources may be included.

By performing such an operation, the base station apparatus 3 can perform reception processing of a plurality of PUSCHs with a predetermined PUSCH resource without recognizing whether or not the terminal apparatus 1 has detected the slot format setting DCI.

However, if a certain PUSCH resource assigned by the upper layer slot format setting information includes a symbol indicated as an uplink symbol and a symbol indicated as a downlink symbol (or flexible symbol) in the slot format setting DCI, the terminal device 1 may drop all of the PUSCH resources.

However, if the terminal device 1 is set to monitor the slot format setting DCI and does not detect the slot format setting DCI, a certain PUSCH resource (temporary PUSCH resource) allocated by the upper layer slot format setting information is used. ), The terminal device 1 may drop only the resource of the symbol indicated as the downlink symbol and / or the flexible symbol among the temporary PUSCH resources.

Multiple PUSCH resources allocated based on the upper layer slot format setting information are for multiple temporary PUSCH resources, and multiple PUSCH resources that were not dropped by the slot format setting DCI are multiple actual PUSCH resources. ) May be called. The plurality of actual PUSCH resources (for example, the first symbol and the number of symbols of each of the plurality of actual PUSCH resources) are set to the plurality of temporary PUSCH resources (for example, the first symbol and the number of symbols of each of the plurality of temporary PUSCH resources) and the slot format setting DCI. It may be determined based on. The terminal device 1 may determine a plurality of actual PUSCH resources based on the plurality of temporary PUSCH resources and the slot format setting DCI. However, if the terminal device 1 is not set to monitor the slot format setting DCI with PDCCH, and / or if the flexible symbol is not set in the upper layer slot format setting information, the plurality of actual PUSCH resources will be It may be the same as a plurality of temporary PUSCH resources.

In the repeated transmission of PUSCH using the first repeated transmission method according to the present embodiment, the total number of symbols of the plurality of temporary PUSCH resources is L *, which is the power of L and Rep indicated by the resource allocation information included in DCI. It may be equal to Rep. In the repeated transmission of PUSCH using the first repeated transmission method according to the present embodiment, the total number of symbols of the plurality of actual PUSCH resources is L, which is the power of L and Rep indicated by the resource allocation information included in DCI. * It will be below Rep.

FIG. 17 is a diagram showing an example of the time resource allocation of PUSCH in the repeated transmission of PUSCH according to the present embodiment. FIG. 17 shows by DCI containing resource allocation (RA) information.
An example of PUSCH arrangement when S = 6, L = 4, and Rep = 4 is shown, and FIGS. 17A, 17B, and 17C show different slot formats to be notified. Here are two examples.

FIG. 17A is a diagram showing an example in which all the symbols of the two slots are set as uplink symbols (UL by RRC) according to the upper layer slot format setting information. In this case, since all the symbols in the two slots are available for the PUSCH, the terminal device 1 sets the first PUSCH resource as a time resource in which the start symbol is the first slot and the seventh symbol period is four symbols. The first PUSCH resource is the 11th symbol in the first slot and the period is 4 symbols. The third PUSCH resource is the first symbol in the second slot and the period is 4 symbols. The PUSCH is continuously transmitted four times with the fourth PUSCH resource as the resource and the start symbol as the fifth symbol in the second slot and the period as the time resource of four symbols.

In FIG. 17B, up to the sixth symbol is set as the downlink symbol (DL by RRC) in both the first slot and the second slot according to the upper layer slot format setting information, and the remaining symbols are the uplink symbols (UL by RRC). It is a figure which shows the example when it is set with). In this case, since the last 8 symbols of each slot are available for PUSCH, the terminal device 1 sets the first PUSCH resource as a time resource of 4 symbols for the 7th symbol period of the first slot as the start symbol. The second PUSCH resource is the 11th symbol in the first slot and the period is 4 symbols, and the third PUSCH resource is the 7th symbol in the second slot and the period is 4 symbols. The PUSCH is transmitted four times with the fourth PUSCH resource as the time resource and the start symbol as the eleventh symbol in the second slot and the period as the time resource of four symbols.

In FIG. 17C, all the symbols of the two slots are set as flexible symbols (Flexible by RRC) according to the upper layer slot format setting information, and the first slot and the second slot are both up to the sixth symbol in the slot format setting DCI. Is set as the downlink symbol (DL by DCI) and the remaining symbols are set as the uplink symbol (UL by DCI). In this case, since all the symbols in the two slots can be used for the arrangement of the PUSCH, the terminal device 1 allocates the PUSCH resource (temporary PUSCH resource) as in the case of FIG. 17A. However, since the PUSCH resource of the symbol indicated as the downlink symbol in the slot format setting DCI is dropped, the terminal device 1 drops all of the third PUSCH resource and the first two symbols of the fourth PUSCH resource. To do. Therefore, in the terminal device 1, the first PUSCH resource (actual PUSCH resource) is set as a time resource having a start symbol of the first slot and the seventh symbol period of four symbols, and the second PUSCH resource (actual PUSCH resource). The start symbol is the 11th symbol of the 1st slot and the period is 4 symbols, and the 3rd PUSCH resource (actual PUSCH resource) is the 7th symbol of the 2nd slot and the period is 2 symbols. PUSCH is transmitted three times with three actual PUSCH resources as the time resource of.

The terminal device 1 determines / sets a PUSCH resource having a slot based on the upper layer slot format setting information and the S, L, and Rep given in the RA information, and is a slot boundary or downlink symbol. If the number of consecutive uplink symbols and / or flexible symbols available in the slot is less than the L symbol, the PUSCH resource may be segmented and a plurality of PUSCHs may be transmitted as the plurality of PUSCH resources.

FIG. 18 shows a case where all two slots are symbols (uplink symbol or flexible symbol) to which PUSCH can be assigned as an example of the segmentation of PUSCH according to the present embodiment, and S = 8, L = 4 and Rep = 4. ing. In this case, the parameter setting is to repeat the PUSCH with a period of 4 symbols four times from the 9th symbol in the slot, but since the second PUSCH resource of the repeated transmission straddles the slot boundary, it is segmented into two 2-symbol PUSCHs. Be transformed. As a result, each PUSCH does not straddle the slot boundary, and the terminal device 1 transmits the PUSCH having a period of 4 symbols or 2 symbols five times.

In FIG. 19, in another example, the 1st to 3rd symbols and the 6th to 8th symbols are set as symbols that cannot be used for PUSCH transmission (for example, downlink symbols) according to the upper layer slot format setting information, and the rest. Is set as a symbol that can be used for PUSCH transmission (for example, an uplink symbol or a flexible symbol), and RA information notifies S = 3, L = 4, Rep = 2. In this case, the PUSCH resource is allocated from the 4th symbol, but since the number of symbols that can be used for the PUSCH consecutively from the 4th symbol is 2 (<L = 4), the first PUSCH resource is segmented. The symbol. As a result, the first PUSCH resource has a start symbol of the fourth symbol and the period is 2, the second PUSCH resource has the start symbol of the ninth symbol and the period is 2, and the third PUSCH resource has started. The symbol is the 11th symbol, the period is 4, and the terminal device 1 transmits the PUSCH three times.

That is, the number of repeated transmissions of Rep notified by the upper layer parameter and PUSCH actually transmitted may be different. That is, the number of symbols of L notified by the upper layer parameter and the number of symbols of PUSCH actually transmitted may be different. For example, the terminal device 1 may determine the actual number of repeated transmissions of the PUSCH from the Rep and the number of segments of each PUSCH and / or the number of drops of the PUSCH resource. For example, when the Rep (nominal number of repetitions) indicated by the RRC message and / or DCI is 1, the time domain resource of the PUSCH determined by S and L spans the slot boundary, or a part of the PUSCH. If the symbol is not available for transmission, the terminal device 1 may repeatedly transmit the PUSCH with a plurality of segmented time domain resources. More specifically, when one slot has 14 symbols and S = 8, L = 14, Rep = 1 is notified, the terminal device 1 has 6 symbols from symbol numbers 8 to 13 in the first slot. One PUSCH may be transmitted with, and one PUSCH may be transmitted with eight symbols from the symbol numbers 0 to 7 of the second slot. In this case, the terminal device 1 repeatedly transmits the PUSCH twice by using the time domain resource of the symbol numbers 8 to 6 in the first slot and the time domain resource of the symbol numbers 0 to 8 in the second slot. Do it.

However, the terminal device 1 segments the time domain resource represented by S, L, and Rep when the time domain resource of the L × Rep symbol straddles the slot boundary or is partially a DL symbol. One PUSCH may be transmitted for each consecutive available uplink symbol group in the slot. That is, the terminal device 1 can be continuously used in the slot when the time domain resource of the L × Rep symbol represented by S, L, and Rep straddles the slot boundary or is partially a DL symbol. It is not necessary to transmit a plurality of PUSCHs in the uplink symbol group.

As described above, the terminal device 1 according to the present embodiment determines the start symbol and the period of a plurality of PUSCH resources (may be referred to as temporary PUSCH resources) based on the DCI including the RA information and the upper layer slot format setting information. To do. Further, when the terminal device 1 is set to monitor the slot format setting DCI with the PDCCH, the terminal device 1 has a plurality of PUSCHs based on the head symbol and period of the plurality of temporary PUSCH resources and the slot format setting DCI. If the start symbol and period of each resource (which may be referred to as an actual PUSCH resource) are determined and the slot format setting DCI is not set to be monitored by PDCCH, each of the plurality of temporary PUSCH resources Determine the start symbol and period for each start symbol and period of a plurality of actual PUSCH resources. Further, the terminal device 1 transmits the PUSCH with each of the determined actual PUSCH resources.

Further, the terminal device 1 according to the present embodiment determines a plurality of temporary PUSCH resources based on the DCI including the RA information and the upper layer slot format setting information. Further, the terminal device 1 is set to monitor the slot format setting DCI with the PDCCH, and when the slot format setting DCI is detected, the upper layer slot format setting information is provided in each of the plurality of PUSCH resources. And slot format settings Determine a set of multiple contiguous symbols, indicated as uplink symbols by at least one of the DCIs, as multiple actual PUSCH resources. Further, when the terminal device 1 is set to monitor the slot format setting DCI with the PDCCH and the slot format setting DCI is not detected, the upper layer slot in each of the plurality of temporary PUSCH resources. Only the temporary PUSCH resource including only the symbol indicated as the uplink symbol by the format setting information is determined as the actual PUSCH resource. Further, the terminal device 1 determines each of the plurality of temporary PUSCH resources as each of the plurality of actual PUSCH resources when the slot format setting DCI is not set to be monitored by the PDCCH. Further, the terminal device 1 transmits the PUSCH with each of the determined actual PUSCH resources.

In this embodiment, the terminal device 1 repeatedly transmits to the PUSCH transmission scheduled for the uplink grant, at least based on (I) the parameters of the upper layer and / or (II) the fields contained in the uplink grant. May be applied, or which of the multiple repetitive transmission types may be applied. The type of repetitive transmission is the same between slots in addition to the repetitive transmission (hereinafter referred to as the first repetitive transmission) transmitted by the consecutive available uplink symbols of one or a plurality of consecutive available slots described above. It may include a slot aggregation (hereinafter referred to as a second repetitive transmission) that transmits a PUSCH once for each slot with the specified symbol of.

In the aspect A of the present embodiment, the base station apparatus 3 may notify the terminal apparatus 1 of which of the first repetitive transmission and the second repetitive transmission is set / applied by the parameter of the upper layer. For example, the push-Aggression Factor may be used to indicate the number of repeated transmissions of the second repeated transmission. For example, push-AggressionFactor-r16 may be used to indicate the number of repetitions of the first repetitive transmission common between the indexes notified in the Time domain resource association field of DCI. For example, repetition may be used to indicate the number of repetitions of the first repeated transmission of each index notified in the Time domain response access field of DCI. If push-AggressionFactor, push-AggressionFactor-r16, and / or repetition are not set in the terminal device 1, the terminal device 1 considers that the repeated transmission is not applied and transmits the PUSCH scheduled for the uplink grant once. You may.

In aspect B of the present embodiment, the terminal device 1 is a first repetitive transmission and a second repetitive transmission based on the'Time domain resource association'field included in the uplink grant transmitted from the base station device 3. You may decide which of these applies. As mentioned above, the'Time domain resource association'field is used to indicate the PUSCH time domain resource allocation.

In the aspect C of the present embodiment, the base station apparatus 3 may notify the terminal apparatus 1 of which of the first repetitive transmission and the second repetitive transmission is to be set by the parameter of the upper layer. For example, the base station apparatus 3 may individually set a parameter of the upper layer indicating the number of repeated transmissions for each of the first repeated transmission and the second repeated transmission. For example, push-AggressionFactor-r16 and / or repetition may be used to indicate the number of repeated transmissions of the first repeated transmission.

Further, in Aspect A, Aspect B, or Aspect C of the present embodiment, the terminal device 1 is the first based on the PUSCH mapping type obtained based on the'Time domain resource assert'field included in the uplink grant. It may be decided whether the repetitive transmission of the above or the second repetitive transmission is applied.

Further, in the aspect A, the aspect B, or the aspect C of the present embodiment, the terminal device 1 is based on the S, L and / or Rep indicated in the'Time domain resource assert'field included in the uplink grant. It may be determined whether the first repetitive transmission or the second repetitive transmission is applied.

Hereinafter, frequency hopping applied in the uplink in the present embodiment will be described.

The terminal device 1 is set with the first frequency hopping of the PUSCH transmission scheduled or the set PUSCH transmission by the upper layer parameter spreadiHopping. In spreadsheet, one of the following two frequency hopping modes is set.
-Intra-slot frequency hopping
-Inter-slot frequency hopping

FIG. 20 is a diagram showing an example of the first frequency hopping in the present embodiment. FIG. 20A is an example of PUSCH transmission without frequency hopping. FIG. 20B is an example of PUSCH transmission accompanied by intra-slot frequency hopping. FIG. 20C is an example of PUSCH transmission with inter-slot frequency hopping.

The terminal device 1 is set with a second frequency hopping of the PUSCH transmission scheduled or the PUSCH transmission set by the upper layer parameter spreadsheet-r16. In spreadsheet-r16, one of the following three frequency hopping modes may be set.
・ Inter-PUSCH frequency hopping
・ Intra-PUSCH frequency hopping
-Inter-slot frequency hopping

However, the second frequency hopping that can be set by the spreadsheet-r16 may be a part of the above three. For example, the second frequency hopping that can be set by spreadsheet-r16 may be inter-PUSCH frequency hopping and inter-slot frequency hopping.

FIG. 21 is a diagram showing an example of the second frequency hopping in the present embodiment. FIG. 21A is an example of PUSCH transmission without frequency hopping. FIG. 21B is an example of PUSCH transmission accompanied by frequency hopping between PUSCHs. FIG. 21C is an example of PUSCH transmission accompanied by frequency hopping within PUSCH. FIG. 21D is an example of PUSCH transmission with inter-slot frequency hopping.

In FIGS. 20 (b), 21 (b), and 21 (c), the PUSCH transmission with frequency hopping in the slot is the first hop (first frequency hop, first frequency unit) in the slot. And a second hop (second frequency hop, second frequency unit). However, the frequency hopping in the slot in this embodiment can be similarly applied even when there are three or more hops. That is, in the slot, there may be a third hop, a fourth hop, ... In addition to the first hop and the second hop. The maximum number of hops in a slot may be set by an RRC message or the like.

However, the frequency hopping modes (frequency hopping mode included in the first frequency hopping and frequency hopping mode included in the second frequency hopping) indicated by the Frequency Hopping and the Frequency Hopping-r16 may be indicated by the same RRC parameter. .. For example, FrequencyHopping-r16 (or FrequencyHopping) may be a parameter that sets a frequency hopping mode for one of intra-slot frequency hopping, inter-slot frequency hopping, intra-PUSCH frequency hopping, and / or inter-PUSCH frequency hopping. .. For example, the frequency hopping mode indicated by FrequencyHopping-r16 may be implicitly switched based on the DCI format type, field information contained in the DCI format, RNTI, and / or other information. .. For example, the frequency hopping mode indicated by spread-hopping-r16 in the PUSCH scheduled in DCI format 0_0, 0_1 is one of the first frequency hopping, and the frequency indicated by spreadsheet-r16 in the PUSCH scheduled in DCI format 0_2. The hopping mode may be any of the second frequency hopping.

The terminal device 1 performs the frequency hopping of the PUSCH if the frequency hopping field included in the detected DCI format or the random access response UL grant is set to 1, or if the upper layer parameter "frequencyHoppingOffset" is provided in the PUSCH transmission of the spread spectrum. In other cases, PUSCH frequency hopping is not performed. However, the frequencyHoppingOffset is a parameter indicating the frequency offset between hoppings when performing frequency hopping in the PUSCH transmission of spread spectrum.

In PUSCH scheduled in DCI formats 0_0, 0_1 and / or 0_2, the frequency offset is set by the upper layer parameter frequencyHoppingOffsetLists.

If intra-slot frequency hopping is set, the start RB for each hop is given by equation (1).

However, i = 0 and i = 1 are the first hop and the second hop, respectively, RB _start is the starting RB in UL BWP, and RB _offset is the frequency offset in RB units between the two frequency hops. Is. The terminal device 1 in which the in-slot frequency hopping is set may determine / specify the frequency resources of the first hop and the second hop based on the equation (1).

When intra-slot frequency hopping is set, the number of symbols in the first hop is _{given by ceil (N PUSCH, ssymb} ), and the number of symbols in the second hop is N ^{PUSCH, s} _symb- ^{ceil (N PUSCH, s simb). s} _symbol ). However, N ^{PUSCH and} _ssymb are the number of OFDM symbols for PUSCH transmission per slot. The terminal device 1 in which the in-slot frequency hopping is set ^{determines the number of symbols of the first hop as ceil (N PUSCH, s} _{symb), and sets the} number of symbols of the second hop as N ^{PUSCH, s} _symb- ceil (N PUSCH, s symb It may be determined / specified as ^{N PUSCH, s} _symbol).

If the slot between the frequency hopping is set, starting at slot n ^mu _s RB is given by Equation (2).

However, n ^mu _s is the currently slot number within a radio _{frame, RB start} is the start RB in UL _{BWP, RB offset} is the frequency offset of the RB unit between two frequency hopped. The terminal device 1 in which the inter-slot frequency hopping is set may determine / specify the frequency resource in each slot based on the mathematical formula (2).

When frequency hopping between PUSCHs is set, the start RB of each hop may be given by equation (1). The terminal device 1 in which the frequency hopping between PUSCHs is set may determine / specify the frequency resources of the first hop and the second hop based on the equation (1).

When inter-PUSCH frequency hopping is configured, the number of PUSCHs contained in each hop (first hop / second hop) and / or the number of OFDM symbols in each hop is DCI format or random access response UL. It may be determined based on the time resource allocation information contained in the grant. When the inter-PUSCH frequency hopping is set, the terminal device 1 of the PUSCH included in each hop is based on the time resource allocated to one or more PUSCHs allocated to one or more slots. The number and / or the number of OFDM symbols for each hop may be determined / specified. The terminal device 1 determines, based on the downlink control information, whether to include each of one or more scheduled PUSCHs and / or set PUSCHs in the first hop or the second hop. May be good.

As an example, if the PUSCH between frequency hopping is set, in the slot n ^mu _s, the number of PUSCH transmission of the first hop is given by _{^{ceil (N PUSCH (n μ s}} ) / 2), second hop The number of PUSCH transmissions in is given by N _PUSCH (n ^μ _s ) -ceil (N _PUSCH (n ^μ _s ) / 2) (or floor (N _PUSCH (n ^μ _s ) / 2)). _{However, N PUSCH} ⁽ⁿ μ _s) is the number of PUSCH transmission is PUSCH transmission and / or settings that are scheduled in slot n ^mu _s. The terminal device 1 in which the frequency hopping between PUSCHs is set _{determines / specifies the number of PUSCH transmissions of the first hop by ceil (N PUSCH} (n ^μ _s ) / 2), and determines / specifies the number of PUSCH transmissions of the second hop. The number may be determined / specified by _{N PUSCH} (n ^μ _s ) -ceil (N _PUSCH (n ^μ _s ) / 2) (or floor (N _PUSCH (n ^μ _{s) / 2)).} However, the formula for determining / specifying the number of PUSCH transmissions of the first hop and the second hop may be reversed. For example, the number of PUSCH transmissions of the first hop is N _PUSCH (n ^μ _s ) −. Given by ceil (N _PUSCH ^{(n μ} _s ) / 2) (or floor (N _PUSCH (n ^μ _s ) / 2)), the number of PUSCH transmissions in the second hop is ceil (N _PUSCH (n ^μ _{s) / 2).} ) / 2).

As another example, if the PUSCH between frequency hopping is set, in the slot n ^mu _s, the number of PUSCH transmission number and the second hop PUSCH transmission of the first hop is scheduled in slot n ^mu _s It may be based on the total number of symbols of the PUSCH transmission and / or the set PUSCH transmission. Terminal 1 PUSCH between frequency hopping is set in the slot n ^mu _s, the number of PUSCH transmission number and the second hop PUSCH transmission of the first hop, scheduled in slot n ^mu _s PUSCH It may be determined / specified based on the total number of symbols for transmission and / or set PUSCH transmission.

As another example, if the PUSCH between frequency hopping is set, in the slot n ^mu _s, PUSCH start symbol is the first half of the slot is included in the first hop, PUSCH start symbol is late slot It may be included in the second hop. Terminal 1 PUSCH between frequency hopping is set in the slot n ^mu _s, the start symbol including PUSCH is the first half of the slot in the first hop, the start symbol PUSCH the second is the latter half of the slot It may be included in the hop.

As another example, if the PUSCH between frequency hopping is set, in the slot n ^mu _s, PUSCH termination symbol is the first half of the slot is included in the first hop, PUSCH termination symbol is late slot It may be included in the second hop. Terminal 1 PUSCH between frequency hopping is set in the slot n ^mu _s, termination symbol including PUSCH is the first half of the slot in the first hop, PUSCH the second is a late termination symbol slots It may be included in the hop.

As another example, if PUSCH between frequency hopping when set, the terminal apparatus 1, in the slot n ^mu _s, 1 s PUSCH is included in the second hop or included in the first hop May be determined and specified for each uplink period in the slot. However, the uplink period is a time interval in which one or more PUSCHs can be continuously allocated in the slot. For example, one or more PUSCHs within an uplink period may be included in the same hop and the same or different hops may be used between different uplink periods. PUSCH between terminal 1 frequency hopping is set, the slot n in ^mu _s, uplink period of one or more of the PUSCH or in the slot in the second hop or included in the first hop It may be decided and specified for each.

When frequency hopping between PUSCHs is set, the terminal device 1 downlinks the number of PUSCHs included in each hop (first hop / second hop) and / or the number of OFDM symbols of each hop. It may be determined based on the number of repeated transmissions of PUSCH specified by the control information (or the number of PUSCHs allocated by one grant). For example, a transmission number is numbered to each of the one or more PUSCHs assigned by one UL grant, and the terminal device 1 is included in the first hop or in the second hop based on the transmission number. You may decide and specify whether it is included. For example, a transmission number is numbered to each of one or more PUSCHs in the same slot assigned by one UL grant, and the terminal device 1 is included in the first hop or the first hop based on the transmission number. You may decide and specify whether it is included in 2 hops. However, if a PUSCH assigned by one UL grant is segmented into multiple PUSCHs by slot boundaries, DL symbol and UL symbol switches, and / or other signals, the segmented plurals. The same transmission number may be numbered for the PUSCH of, or different transmission numbers may be numbered. For example, if a PUSCH assigned by one UL grant is segmented into multiple PUSCHs by slot boundaries, DL symbol and UL symbol switches, and / or other signals, the segmented plurals. PUSCH may always be included in the same hop, or may be included in the same or different hops like other PUSCHs assigned by the same grant.

As an example, if the number of PUSCH transmission is PUSCH transmission and / or settings that are scheduled in slot n ^mu _s is set frequency hopping between PUSCH is _{N PUSCH} ⁽ⁿ μ _s), the threshold value _X PUSCH = ceil (N _PUSCH (n ^μ _{s ) / 2), n PUSCH} = 1 to N _PUSCH (n ^μ _s ) is numbered with respect to the PUSCH assigned to the ^{slot n μ} _s in the same UL grant, and the terminal device 1 is , N _PUSCH <= X _PUSCH may be included in the first hop, and n _PUSCH > X _PUSCH may be included in the second hop.

When frequency hopping between PUSCHs is set, in a plurality of PUSCHs assigned in the same DL format or the same UL grant, the terminal device 1 is set to the first hop for each predetermined number of PUSCHs in the time domain. You may switch between being included and being included in the second hop. The number of PUSCHs that can be consecutively included in the same hop may be determined by the start symbol (S), period (D), and / or number of repetitions (Rep) of the PUSCHs indicated by the downlink control information. However, the terminal device 1 sets a plurality of PUSCHs segmented by slot boundaries, DL symbol and UL symbol switching points, and / or other channels / signals in the number of PUSCHs that are consecutively included in the same hop. It may be regarded as one PUSCH, or each of a plurality of segmented PUSCHs may be regarded as one PUSCH. However, when switching between the first hop and the second hop for each predetermined number of PUSCHs in the time domain, the maximum value of the number of switchings in the slot may be limited.

However, applying the intra-PUSCH frequency hopping in the second frequency hopping may be applying the intra-slot frequency hopping of the first frequency hopping.

However, applying the inter-slot frequency hopping in the second frequency hopping may be applying the inter-slot frequency hopping of the first frequency hopping.

However, the frequency hopping mode indicated by spreadsheet-r16 may be the following two.
-Frequency hopping between PUSCHs-Frequency hopping mode indicated by the upper layer parameter spreadiHopping

Inter-PUSCH frequency hopping and intra-PUSCH frequency hopping (or intra-slot frequency hopping) may be implicitly switched. For example, when spread spectrum-r16 sets the frequency hopping between PUSCHs and the number of repeated transmissions indicated by a predetermined field in the DCI format is 1, the terminal device 1 has a scheduled PUSCH transmission or a set PUSCH. Intra-PUSCH frequency hopping (or in-slot frequency hopping) may be applied to transmission. For example, when spread spectrum-r16 is set for frequency hopping between PUSCHs and the number of PUSCHs transmitted in a certain slot is 1, the terminal device 1 transmits a PUSCH scheduled in the slot or a set PUSCH transmission. However, in-PUSCH frequency hopping (or in-slot frequency hopping) may be applied. For example, when frequency hopping between PUSCHs is set in spreadsheet-r16, the number of PUSCHs transmitted in a certain slot is 1, and the number of PUSCH symbols transmitted in the slot is equal to or more than a predetermined value. , The terminal device 1 may apply intra-PUSCH frequency hopping (or intra-slot frequency hopping) to the PUSCH transmission scheduled or set in the slot.

As a result, the terminal device 1 can transmit uplink data to the base station device 3.

Hereinafter, the configuration of the apparatus according to the present embodiment will be described.

FIG. 22 is a schematic block diagram showing the configuration of the terminal device 1 of the present embodiment. As shown in the figure, the terminal device 1 includes a wireless transmission / reception unit 10 and an upper layer processing unit 14. The radio transmission / reception unit 10 includes an antenna unit 11, an RF (Radio Frequency) unit 12, and a baseband unit 13. The upper layer processing unit 14 includes a medium access control layer processing unit 15 and a radio resource control layer processing unit 16. The wireless transmission / reception unit 10 is also referred to as a transmission unit, a reception unit, a monitor unit, or a physical layer processing unit. The upper layer processing unit 14 is also referred to as a measurement unit 14, a selection unit 14, a determination unit 14, or a control unit 14.

The upper layer processing unit 14 outputs uplink data (which may be referred to as a transport block) generated by a user operation or the like to the wireless transmission / reception unit 10. The upper layer processing unit 14 includes a medium access control (MAC) layer, a packet data integration protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (Radio). Resource Control: RRC) Performs some or all of the layer processing. The upper layer processing unit 14 may have a function of determining a resource for transmitting one or more PUSCHs based on a signal and / or DCI of the upper layer received from the base station apparatus 3. The upper layer processing unit 14 may have a function of determining the head symbol and the number of symbols of each of the plurality of time resources of the PUSCH for a certain TB. The upper layer processing unit 14 may have a function of determining the first symbol and the number of symbols of a plurality of temporary time resources based on the upper layer slot format setting information and the time resource allocation information. When the wireless transmission / reception unit 10 is set to monitor the slot format setting DCI by PDCCH, the upper layer processing unit 14 sets the first symbol, the number of symbols, and the slot format setting DCI of each of the plurality of temporary time resources. Based on this, it may have a function of determining the first symbol and the number of symbols of a plurality of time resources of the PUSCH. When the wireless transmission / reception unit 10 is not set to monitor the slot format setting DCI with the PDCCH, the upper layer processing unit 14 sets the first symbol and the number of symbols of the plurality of time resources of the PUSCH to the plurality of temporary symbols. It may have a function of determining the first symbol and the number of symbols of each time resource. The upper layer processing unit 14 is set to monitor the slot format setting DCI with the PDCCH, and when the slot format setting DCI is detected, the upper layer slot format setting information is provided in each of the plurality of temporary time resources. And the slot format setting DCI may include a function of determining a set of contiguous symbols represented as uplink symbols as one of the plurality of time resources of the PUSCH by at least one of the DCIs. The upper layer processing unit 14 is set to monitor the slot format setting DCI with the PDCCH, and when the slot format setting DCI is not detected, the upper layer slot in each of the plurality of temporary time resources. It may have a function of determining a temporary time resource including only a symbol indicated as an uplink symbol by the format setting information as one of a plurality of time resources of the PUSCH. The upper layer processing unit 14 has a function of determining each of the plurality of temporary time resources as each of the plurality of time resources of the PUSCH when the slot format setting DCI is not set to be monitored by the PDCCH. May be good.

The medium access control layer processing unit 15 included in the upper layer processing unit 14 processes the MAC layer (medium access control layer). The medium access control layer processing unit 15 controls the transmission of the scheduling request based on various setting information / parameters managed by the radio resource control layer processing unit 16.

The radio resource control layer processing unit 16 included in the upper layer processing unit 14 processes the RRC layer (radio resource control layer). The wireless resource control layer processing unit 16 manages various setting information / parameters of its own device. The radio resource control layer processing unit 16 sets various setting information / parameters based on the signal of the upper layer received from the base station apparatus 3. That is, the radio resource control layer processing unit 16 sets various setting information / parameters based on the information indicating various setting information / parameters received from the base station apparatus 3. The radio resource control layer processing unit 16 controls (specifies) resource allocation based on the downlink control information received from the base station device 3.

The wireless transmission / reception unit 10 performs physical layer processing such as modulation, demodulation, coding, and decoding. The wireless transmission / reception unit 10 separates, demodulates, and decodes the signal received from the base station device 3, and outputs the decoded information to the upper layer processing unit 14. The wireless transmission / reception unit 10 generates a transmission signal by modulating and encoding the data, and transmits the transmission signal to the base station device 3 or the like. The wireless transmission / reception unit 10 outputs a signal (RRC message), DCI, etc. of the upper layer received from the base station apparatus 3 to the upper layer processing unit 14. Further, the wireless transmission / reception unit 10 generates and transmits an uplink signal (including PUCCH and / or PUSCH) based on an instruction from the upper layer processing unit 14. The wireless transmission / reception unit 10 may have a function of receiving PDCCH and / or PDSCH. The wireless transmission / reception unit 10 may have a function of transmitting one or more PUCCHs and / or PUSCHs. The wireless transmission / reception unit 10 may have a function of receiving DCI on the PDCCH. The wireless transmission / reception unit 10 may have a function of outputting the DCI received by the PDCCH to the upper layer processing unit 14. The wireless transmission / reception unit 10 may have a function of receiving an RRC message including upper layer slot format setting information. The wireless transmission / reception unit 10 may have a function of receiving the time resource allocation information of PUSCH for a certain TB by PDCCH. The wireless transmission / reception unit 10 may have a function of monitoring the slot format setting DCI with PDCCH.

The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal by orthogonal demodulation (down covert), and removes unnecessary frequency components. RF
The unit 12 outputs the processed analog signal to the baseband unit.

The baseband unit 13 converts the analog signal input from the RF unit 12 into a digital signal. The baseband unit 13 uses CP (Cyclic) from the converted digital signal.
The part corresponding to Prefix) is removed, and the signal in the frequency domain is extracted by performing Fast Fourier Transform (FFT) on the signal from which CP has been removed.

The baseband unit 13 performs an inverse fast Fourier transform (IFFT) on the data to generate an OFDM symbol, adds a CP to the generated OFDM symbol, generates a baseband digital signal, and basebands the data. Converts a band's digital signal to an analog signal. The baseband unit 13 outputs the converted analog signal to the RF unit 12.

The RF unit 12 uses a low-pass filter to remove excess frequency components from the analog signal input from the baseband unit 13, up-converts the analog signal to the carrier frequency, and transmits the analog signal via the antenna unit 11. To do. Further, the RF unit 12 amplifies the electric power. Further, the RF unit 12 may have a function of determining the transmission power of the uplink signal and / or the uplink channel to be transmitted in the service area cell. The RF unit 12 is also referred to as a transmission power control unit.

FIG. 23 is a schematic block diagram showing the configuration of the base station device 3 of the present embodiment. As shown in the figure, the base station apparatus 3 includes a wireless transmission / reception unit 30 and an upper layer processing unit 34. The radio 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, a monitor unit, or a physical layer processing unit. Further, a control unit that controls the operation of each unit based on various conditions may be separately provided. The upper layer processing unit 34 is also referred to as a determination unit 34 or a control unit 34.

The upper layer processing unit 34 includes a medium access control (MAC) layer, a packet data integration protocol (PDCP) layer, a radio link control (RLC) layer, and a radio resource control (Radio). Resource Control: RRC) Performs some or all of the layer processing. The upper layer processing unit 34 may have a function of generating DCI based on the signal of the upper layer transmitted to the terminal device 1 and the time resource for transmitting the PUSCH. The upper layer processing unit 34 may have a function of outputting the generated DCI or the like to the wireless transmission / reception unit 30. The upper layer processing unit 34 may have a function of determining a resource to be used for transmitting one or more PUSCHs based on the RRC message and the generated DCI. The upper layer processing unit 34 may have a function of determining a plurality of temporary time resources based on the upper layer slot format setting information and the time resource allocation information. The upper layer processing unit 34 may have a function of determining the first symbol and the number of symbols of each of the plurality of time resources for a certain PUSCH. The upper layer processing unit 34 may have a function of determining the first symbol and the number of symbols of a plurality of temporary time resources based on the upper layer slot format setting information and the time resource allocation information. When the terminal device 1 is set to monitor the slot format setting DCI with the PDCCH, the upper layer processing unit 34 receives the upper layer slot format setting information and the slot format setting DCI in each of the plurality of temporary time resources. It may have a function of determining a set of consecutive symbols represented as uplink symbols by at least one of the above as one of a plurality of time resources for the PUSCH. When the terminal device 1 is set to monitor the slot format setting DCI by PDCCH, the upper layer processing unit 34 sets the first symbol and the number of symbols of each of the plurality of temporary time resources and the slot format setting DCI. Based on this, it may have a function of determining the first symbol and the number of symbols of a plurality of time resources for the PUSCH. When the terminal device 1 is not set to monitor the slot format setting DCI with the PDCCH, the upper layer processing unit 34 uses each of the plurality of temporary time resources as each of the plurality of time resources for the PUSCH. It may have a function to determine. When the terminal device 1 is not set to monitor the slot format setting DCI with the PDCCH, the upper layer processing unit 34 sets the first symbol and the number of symbols of the plurality of time resources for the PUSCH to the plurality of symbols. It may have a function of determining the first symbol and the number of symbols of each temporary time resource of. The upper layer processing unit 34 may have a function of determining whether each of the one or more PUSCHs is included in the first hop or the second hop based on the DCI.

The medium access control layer processing unit 35 included in the upper layer processing unit 34 processes the MAC layer. The medium access control layer processing unit 35 performs processing related to the scheduling request based on various setting information / parameters managed by the radio resource control layer processing unit 36.

The radio resource control layer processing unit 36 included in the upper layer processing unit 34 processes the RRC layer. The radio resource control layer processing unit 36 generates a DCI (uplink grant, downlink grant) including resource allocation information in the terminal device 1. The radio resource control layer processing unit 36 generates downlink data (transport block (TB), random access response (RAR)), system information, RRC message, MAC CE (Control Element), etc., which are arranged in DCI and PDSCH. Or, it is acquired from the upper node and output to the wireless transmission / reception 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 terminal device 1 via a signal of the upper layer. That is, the radio resource control layer processing unit 36 transmits / notifies information indicating various setting information / parameters. The radio resource control layer processing unit 36 may transmit / notify information for identifying the setting of one or more reference signals in a cell.

When an RRC message, MAC CE, and / or PDCCH is transmitted from the base station device 3 to the terminal device 1 and the terminal device 1 performs processing based on the reception, the terminal device 3 performs the processing. Processing (control of the terminal device 1 and the system) is performed assuming that the processing is being performed. That is, the base station apparatus 3 sends an RRC message, a MAC CE, and / or a PDCCH that causes the terminal apparatus to perform processing based on its reception to the terminal apparatus 1.

The wireless transmission / reception unit 30 transmits a higher layer signal (RRC message), DCI, etc. to the terminal device 1. Further, the wireless transmission / reception unit 30 receives the uplink signal transmitted from the terminal device 1 based on the instruction from the upper layer processing unit 34. The wireless transmission / reception unit 30 may have a function of transmitting PDCCH and / or PDSCH. The wireless transmission / reception unit 30 may have a function of receiving one or more PUCCHs and / or PUSCHs. The wireless transmission / reception unit 30 may have a function of transmitting DCI by PDCCH. The wireless transmission / reception unit 30 may have a function of transmitting the DCI output by the upper layer processing unit 34 by PDCCH. The wireless transmission / reception unit 30 may have a function of transmitting PUSCH time resource allocation information for a certain TB by PDCCH. The wireless transmission / reception unit 30 may have a function of transmitting an RRC message including upper layer slot format setting information. In each slot, the radio transmission / reception unit 30 receives one or more PUSCHs with the start resource block of the first hop as the first resource block and the start resource block of the second hop as the second resource block. It may have a function. Since some functions of the wireless transmission / reception unit 30 are the same as those of the wireless transmission / reception unit 10, the description thereof will be omitted. When the base station device 3 is connected to one or a plurality of transmission / reception points 4, some or all of the functions of the wireless transmission / reception unit 30 may be included in each transmission / reception point 4.

Further, the upper layer processing unit 34 transmits (transfers) a control message or user data between the base station devices 3 or between the upper network device (MME, S-GW (Serving-GW)) and the base station device 3. ) Or receive. In FIG. 23, other components of the base station device 3 and data (control information) transmission paths between the components are omitted, but other functions necessary for operating as the base station device 3 are provided. It is clear that it has a plurality of blocks as components. For example, the upper layer processing unit 34 includes a radio resource management (Radio Resource Management) layer processing unit and an application layer processing unit.

The "part" in the drawing is an element that realizes the functions and procedures of the terminal device 1 and the base station device 3, which are also expressed by terms such as sections, circuits, constituent devices, devices, and units.

Each portion of the terminal device 1 with reference numerals 10 to 16 may be configured as a circuit. Each portion of the base station apparatus 3 with reference numerals 30 to 36 may be configured as a circuit.

(1) The terminal device 1 according to the first aspect of the present invention has first setting information (upper layer slot format) indicating whether each of the symbols for a certain period of time is a downlink symbol, an uplink symbol, or a flexible symbol. With the receiver 10 that receives the RRC message including the setting information) and receives the time resource allocation information of the physical uplink shared channel (PUSCH) for a certain transport block (TB) on the physical downlink control channel (PDCCH). The determination unit 14 for determining the start symbol and the number of symbols of each of the plurality of first time resources, and the transmission unit 10 for transmitting the PUSCH in each of the plurality of first time resources. The unit 14 determines the start symbol and the number of symbols of each of the plurality of second time resources based on the first setting information and the time resource allocation information, and the receiving unit 10 determines the slot format of the plurality of slots. When the second setting information (slot format setting DCI) to be shown is set to be monitored by the physical downlink control channel (PDCCH), the first symbol and the number of symbols of each of the plurality of second time resources and the number of symbols The start symbol and the number of symbols of each of the plurality of first time resources are determined based on the second setting information, and the receiving unit 10 is set to monitor the second setting information with PDCCH. If not, the leading symbols and the number of symbols of the plurality of first time resources are determined to be the leading symbols and the number of symbols of the plurality of second time resources, respectively.

(2) In the first aspect of the present invention, the determination unit 14 uses information indicating the symbol index (S), the nominal number of symbols (L), and the number of repetitions (Rep) included in the time resource allocation information. It may be a determination unit 14 that determines the head symbol and the number of symbols of each of the plurality of second time resources based on the above.

(3) The base station device 3 in the second aspect of the present invention is the base station device 3 that communicates with the terminal device 1, and each of the symbols for a certain period of time is a downlink symbol, an uplink symbol, and a flexible symbol. The time resource allocation information of the physical uplink shared channel (PUSCH) for a certain transport block (TB) by transmitting an RRC message including the first setting information (upper layer slot format setting information) indicating which one is used. The transmission unit 30 that transmits the above on the physical downlink control channel (PDCCH), the determination unit 34 that determines the start symbol and the number of symbols of each of the plurality of first time resources, and each of the plurality of first time resources. The determination unit 34 includes a receiving unit 30 for receiving the PUSCH, and the determination unit 34 has a start symbol and a number of symbols of each of the plurality of second time resources based on the first setting information and the time resource allocation information. When the terminal device 1 is set to monitor the second setting information (slot format setting DCI) indicating the slot formats of the plurality of slots on the physical downlink control channel (PDCCH), the above-mentioned The starting symbol and the number of symbols of each of the plurality of second time resources and the number of starting symbols and symbols of each of the plurality of first time resources are determined based on the second setting information, and the terminal device 1 determines the starting symbol and the number of symbols of each of the plurality of first time resources. When the second setting information is not set to be monitored by PDCCH, the first symbol and the number of symbols of the plurality of first time resources are set to the respective first symbols of the plurality of second time resources. Determine the number of symbols.

(4) In the second aspect of the present invention, the determination unit 34 uses information indicating the symbol index (S), the nominal number of symbols (L), and the number of repetitions (Rep) included in the time resource allocation information. Based on this, the determination unit 34 may determine the start symbol and the number of symbols of each of the plurality of second time resources.

(5) In the terminal device 1 according to the third aspect of the present invention, the first setting information (upper layer slot format) indicating whether each of the symbols for a certain period of time is a downlink symbol, an uplink symbol, or a flexible symbol. With the receiver 10 that receives the RRC message including the setting information) and receives the time resource allocation information of the physical uplink shared channel (PUSCH) for a certain transport block (TB) on the physical downlink control channel (PDCCH). The determination unit 14 includes a determination unit 14 for determining a plurality of first time resources, and a transmission unit 10 for transmitting the PUSCH in each of the plurality of first time resources. The determination unit 14 is the first. A plurality of second time resources are determined based on the setting information and the time resource allocation information, and the receiving unit 10 physically downlinks the second setting information (slot format setting DCI) indicating the slot formats of the plurality of slots. It is set to monitor on the control channel (PDCCH), and when the second setting information is detected, the first setting information and the second setting information are used in each of the plurality of second time resources. A set of consecutive symbols represented as uplink symbols by at least one of the setting information is determined as one of the plurality of first time resources, and the receiving unit 10 transmits the second setting information on the PDCCH. A symbol indicated as an uplink symbol by the first setting information in each of the plurality of second time resources when it is set to be monitored and the second setting information is not detected. When the second time resource including only is determined as one of the plurality of first time resources, and the receiving unit 10 is not set to monitor the second setting information with the PDCCH. Each of the plurality of second time resources is determined as each of the plurality of first time resources.

(6) The base station device 3 according to the fourth aspect of the present invention is the base station device 3 that communicates with the terminal device 1, and each of the symbols for a certain period of time is a downlink symbol, an uplink symbol, and a flexible symbol. The time resource allocation information of the physical uplink shared channel (PUSCH) for a certain transport block (TB) by transmitting an RRC message including the first setting information (upper layer slot format setting information) indicating which one is used. A transmission unit 30 that receives the PUSCH on the physical downlink control channel (PDCCH), a determination unit 34 that determines a plurality of first time resources, and a reception unit that receives the PUSCH on each of the plurality of first time resources. The determination unit 34 determines a plurality of second time resources based on the first setting information and the time resource allocation information, and the terminal device 1 determines the slot format of the plurality of slots. When the second setting information (slot format setting DCI) to be shown is set to be monitored by the physical downlink control channel (PDCCH), the first setting is made in each of the plurality of second time resources. A set of consecutive symbols represented as uplink symbols by at least one of the information and the second setting information is determined as one of the plurality of first time resources, and the terminal device 1 determines the second. When it is not set to monitor the setting information of the PDCCH, each of the plurality of second time resources is determined as each of the plurality of first time resources.

As a result, the terminal device 1 can efficiently communicate with the base station device 3. For example, in a DCI that schedules data for different services (eMBB, URLLC and / or mMTC, etc.), use the appropriate notification method for each service to indicate the time resource to receive the PDSCH and / or the time resource to send the PUSCH. be able to. In addition, the base station device 3 can efficiently communicate with the terminal device 1. For example, in a DCI that schedules data for different services, an appropriate notification method can be used for each service to indicate the time resource to send the PDSCH and / or the time resource to receive the PUSCH.

The program that operates in the apparatus according to the present invention may be a program that controls the Central Processing Unit (CPU) or the like to operate the computer so as to realize the functions of the embodiments according to the present invention. The program or the information handled by the program is temporarily stored in a volatile memory such as Random Access Memory (RAM), a non-volatile memory such as a flash memory, a Hard Disk Drive (HDD), or another storage device system.

The program for realizing the function of the embodiment according to the present invention may be recorded on a computer-readable recording medium. It may be realized by loading the program recorded on this recording medium into a computer system and executing it. The "computer system" as used herein is a computer system built into a device, and includes hardware such as an operating system and peripheral devices. The "computer-readable recording medium" is a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a medium that dynamically holds a program for a short time, or another recording medium that can be read by a computer. Is also good.

Further, each functional block or feature of the device used in the above-described embodiment can be implemented or executed in an electric circuit, for example, an integrated circuit or a plurality of integrated circuits. Electrical circuits designed to perform the functions described herein are general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or others. Programmable logic devices, discrete gate or transistor logic, discrete hardware components, or a combination thereof may be included. The general purpose processor may be a microprocessor, a conventional processor, a controller, a microcontroller, or a state machine. The electric circuit described above may be composed of a digital circuit or an analog circuit. In addition, when an integrated circuit technology that replaces the current integrated circuit appears due to advances in semiconductor technology, one or more aspects of the present invention can also use a new integrated circuit according to the technology.

In the embodiment related to the present invention, an example applied to a communication system composed of a base station device and a terminal device has been described, but in a system such as D2D (Device to Device) in which terminals communicate with each other. Is also applicable.

The present invention is not limited to the above-described embodiment. Although an example of the device has been described in the embodiment, the present invention is not limited to this, and the present invention is not limited to this, and the stationary or non-movable electronic device installed indoors or outdoors, for example, an AV device, a kitchen device, and the like. It can be applied to terminal devices or communication devices such as cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other living equipment.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like within a range not deviating from the gist of the present invention are also included. Further, the present invention can be variously modified within the scope of the claims, and the technical scope of the present invention also includes embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is done. In addition, the elements described in each of the above-described embodiments include a configuration in which elements having the same effect are replaced with each other.

1 (1A, 1B) Terminal device 3 Base station device 4 Transmission / reception point (TRP)
10 Wireless transmission / reception unit 11 Antenna unit 12 RF unit 13 Baseband unit 14 Upper layer processing unit 15 Media access control layer processing unit 16 Wireless resource control layer processing unit 30 Wireless transmission / reception unit 31 Antenna unit 32 RF unit 33 Baseband unit 34 Upper layer Processing unit 35 Media access control layer Processing unit 36 Wireless resource control layer Processing unit 50 Transmission unit (TXRU)
51 Phase shifter 52 Antenna element

Claims (4)

It ’s a terminal device,
A physical uplink shared channel for a transport block that receives an RRC message containing first configuration information indicating whether each of the symbols over a period of time is a downlink symbol, an uplink symbol, or a flexible symbol. A receiver that receives time resource allocation information on the physical downlink control channel, a determination unit that determines a plurality of first time resources, and each of the plurality of first time resources transmit the physical uplink shared channel. With a transmitter to
The decision unit
A plurality of second time resources are determined based on the first setting information and the time resource allocation information.
The receiving unit is set to monitor the second setting information indicating the slot format of the plurality of slots on the physical downlink control channel, and when the second setting information is detected, the plurality of second setting information In each of the time resources of the above, one of the plurality of first time resources is a set of consecutive symbols indicated as uplink symbols by at least one of the first setting information and the second setting information. Determined as
When the receiving unit is set to monitor the second setting information on the physical downlink control channel and does not detect the second setting information, the plurality of second time resources In each, the second time resource including only the symbol indicated as the uplink symbol by the first setting information is determined as one of the plurality of first time resources.
When the receiving unit is not set to monitor the second setting information on the physical downlink control channel, each of the plurality of second time resources is designated as each of the plurality of first time resources. The terminal device to decide. A base station device that communicates with a terminal device
A physical uplink shared channel for a transport block that sends an RRC message containing first configuration information indicating whether each of the symbols over a period of time is a downlink symbol, an uplink symbol, or a flexible symbol. A transmission unit that receives time resource allocation information on a physical downlink control channel, a determination unit that determines a plurality of first time resources, and each of the plurality of first time resources receive the physical uplink shared channel. With a receiver,
The decision unit
A plurality of second time resources are determined based on the first setting information and the time resource allocation information.
When the terminal device is set to monitor the second setting information indicating the slot format of the plurality of slots on the physical downlink control channel, in each of the plurality of second time resources, the first A set of consecutive symbols indicated as uplink symbols by at least one of the setting information of the above and the second setting information is determined as one of the plurality of first time resources.
When the terminal device is not set to monitor the second setting information on the physical downlink control channel, each of the plurality of second time resources is designated as each of the plurality of first time resources. Base station equipment to determine. It is a communication method of the terminal device,
A physical uplink shared channel for a transport block that receives an RRC message containing first configuration information indicating whether each of the symbols over a period of time is a downlink symbol, an uplink symbol, or a flexible symbol. The time resource allocation information is received by the physical downlink control channel, a plurality of first time resources are determined, and the physical uplink shared channel is transmitted by each of the plurality of first time resources.
A plurality of second time resources are determined based on the first setting information and the time resource allocation information.
It is set to monitor the second setting information indicating the slot format of the plurality of slots on the physical downlink control channel, and when the second setting information is detected, the second time resource of the plurality of slots is used. In each, a set of consecutive symbols represented as uplink symbols by at least one of the first setting information and the second setting information is determined as one of the plurality of first time resources.
When the second setting information is set to be monitored by the physical downlink control channel and the second setting information is not detected, in each of the plurality of second time resources, the said The second time resource containing only the symbol indicated as the uplink symbol by the first setting information is determined as one of the plurality of first time resources.
A communication method in which each of the plurality of second time resources is determined as each of the plurality of first time resources when the second setting information is not set to be monitored by the physical downlink control channel. .. It is a communication method of a base station device that communicates with a terminal device.
A physical uplink shared channel for a transport block that sends an RRC message containing first configuration information indicating whether each of the symbols over a period of time is a downlink symbol, an uplink symbol, or a flexible symbol. The time resource allocation information is received by the physical downlink control channel, a plurality of first time resources are determined, and the physical uplink shared channel is received by each of the plurality of first time resources.
A plurality of second time resources are determined based on the first setting information and the time resource allocation information.
When the terminal device is set to monitor the second setting information indicating the slot format of the plurality of slots on the physical downlink control channel, in each of the plurality of second time resources, the first A set of consecutive symbols indicated as uplink symbols by at least one of the setting information of the above and the second setting information is determined as one of the plurality of first time resources.
When the terminal device is not set to monitor the second setting information on the physical downlink control channel, each of the plurality of second time resources is designated as each of the plurality of first time resources. Communication method to decide.

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