Abstract: A terminal apparatus transmits a PUCCH in a certain slot, and receives multiple DCI formats on a set of PDCCH monitoring occasions corresponding to the certain slot. In a case that multiple PUCCHs exist in the certain slot and that the multiple PUCCHs include a first PUCCH including a first type HARQ-ACK codebook and a second PUCCH including a second type HARQ-ACK codebook, the second PUCCH is not transmitted.

Abstract: Terminal device receives a high-layer parameter and transmits a PRACH. The high-layer parameter indicates a set of PRACH occasions and a PRACH slot for transmission of the PRACH. In a case that a PRACH occasion in the set of PRACH occasions is allocated to a slot different from the PRACH slot, the PRACH occasion is dropped for transmission of the PRACH.

Abstract: A user equipment (UE) is described. The LE may comprise high-layer processing circuit configured to acquire a first RRC parameter, a second RRC parameter, a third RRC parameter, and a fourth RRC parameter, and transmission circuity configured to transmit a PUSCH in multiple slots.

Abstract: A terminal apparatus includes: a reception unit configured to receive indication of a first PDSCH group index in a first DCI format, and receive indication of a second PDSCH group index in a second DCI format; and a transmission unit configured to, in a case that the first DCI format is detected, transmit HARQ-ACK information of the second PDSCH group index, the HARQ-ACK information being determined based at least on a parameter M. A value of a first NFI of the second PDSCH group index is indicated by a first NFI field in the second DCI format. A value of a second NFI of the second PDSCH group index is indicated by a second NFI field in the first DCI format. In a case that the value of the second NFI is not null and the value of the second NFI is different from the value of the first NFI, a value of the parameter M is set to zero.

Abstract: Terminal device comprising; MAC layer control circuitry configured to manage a first timer for a HARQ process and a second timer for the HARQ process which starts with expiry of the first timer, and reception circuitry configured to receive a first PDCCH indicating a first transmission of a HARQ-ACK feedback for a transport block for the HARQ process and a second PDCCH indicating a second transmission of a second HARQ-ACK feedback for the transport block for the HARQ process where the second transmission occurs later than the first transmission, wherein, the MAC layer control circuitry configured to start the first timer for the HARQ process at a timing of the first transmission, the MAC layer control circuitry configured to start or restart the first timer for the HARQ process at a timing of the second transmission.

Abstract: The DCI format at least indicates a set of interlaces if the DCI format indicates a set of RB-sets, resource blocks for the PUSCH are given based on an intersection of the set of the interlaces and the set of the RB-sets, and if the DCI format doesn't indicate the set of the RB-sets, the resource blocks for the PUSCH are given based on an intersection of the set of the interlaces and a pre-determined set of RB-sets where the pre-determined set includes one RB-set which corresponds to one downlink RB set in which the DCI format is received.

Abstract: Provided are a channel generation unit configured to generate a time domain signal of a PUCCH mapped from an X-th OFDM symbol to an (X+L)-th OFDM symbol in a slot, and a transmitter configured to transmit the PUCCH. In a case that the time domain signal of the X-th OFDM symbol is generated based at least on contents of resource elements included in an (X+1)-th OFDM symbol, a set of OFDM symbols to which a DMRS of the PUCCH is mapped is given based at least on an assumption that the number of OFDM symbols of the PUCCH is L.

Abstract: A CCA level is made to be variable efficiently while maintaining the fairness relating to acquisition of a transmission opportunity by wireless terminal apparatuses, and thus efficiency of a radio resource is improved. Provided is a terminal apparatus that performs wireless communication with a base station apparatus, and includes; a MAC frame categorization unit categorizing MAC frames, in each of which media access control header is attached to transmission data, based on a type of MAC frame; and a QoS control unit performing a carrier sense using a first CCA level, in a case where the MAC frame is included in a first category that results from the categorization by the MAC frame categorization unit, and performing the carrier sense using a second CCA level different from the first CCA level, in a case where the MAC frame is included in a second category different from the first category.

Abstract: A UE which communicates with a base station is described. The UE may comprise receiving circuitry configured to monitor a PDCCH with a DCI format; transmitting circuitry configured to transmit a PUSCH subject to a channel access procedure, a starting position of initial symbol for PUSCH being adjusted by x; wherein the DCI format includes a 4-bit information field, the 4-bit information is characterized by at least one or more of following values.

Abstract: A receiver receives one or multiple first DCI formats, one or multiple second DCI formats, and a third DCI format. The third DCI format does not include a PDSCH group indication field. A PDSCH scheduled by the third DCI format is included in a first PDSCH group. A transmitter transmits a first HARQ-ACK codebook for the first PDSCH group, and/or a second HARQ-ACK codebook for the second PDSCH group. The third DCI format schedules a PDSCH. In a case that the third DCI format is detected, the transmitter transmits an HARQ-ACK bit corresponding to the PDSCH scheduled by the third DCI format.

Abstract: For a terminal apparatus, based on a value of a PGI field included in a DCI format for scheduling a PDSCH, a PDSCH group to which the PDSCH belongs is indicated. In a case that an RPGI field included in the DCI format is set to a first RPGI value, inclusion of a PDSCH group to which the PDSCH belongs in a requested PDSCH group is indicated. In a case that the RPGI field included in the DCI format is set to a second RPGI value, inclusion of a PDSCH group to which the PDSCH belongs and another PDSCH group other than the PDSCH group in the requested PDSCH group is indicated. Transmission of HARQ-ACK information is included, the HARQ-ACK information corresponding to a transport block of the PDSCH belonging to a PDSCH group included in the requested PDSCH group.

Abstract: Efficient downlink transmission is implemented. A terminal apparatus includes: a receiver configured to receive a sequence of bits in a physical downlink control channel, wherein the sequence of bits is scrambled with a scrambling sequence initialized by cinit, the cinit is given based at least on NID and NRNTI, the NID is given based at least on a higher layer parameter Control-scrambling-Identity in a case that the higher layer parameter Control-scrambling-Identity is configured and the NRNTI is given based at least on a Cell-Radio Network Temporary Identifier (C-RNTI), and the NID is given based at least on a physical layer cell identity in a case that the higher layer parameter Control-scrambling-Identity is configured and the NRNTI is not given based on the C-RNTI.

Abstract: A terminal apparatus includes a processing circuitry configured to determine one or multiple first indexes of one or multiple physical resource blocks (PRBs) to which a physical uplink control channel (PUCCH) is mapped, and a transmitting circuitry configured to transmit the PUCCH in a bandwidth part (BWP). In a case that the PUCCH is transmitted using an interlace, the one or multiple first indexes are determined based on a resource block (RB) used for the interlace, the number of interlaces, and the number of the one or multiple PRBs from zero to a starting PRB of the BWP in a common resource block (CRB) index.

Abstract: A terminal apparatus includes: a receiver configured to receive a DCI format and a PDSCH scheduled by the DCI format; and a transmitter configured to transmit HARQ-ACK information. A first PDSCH group of the scheduled PDSCH is indicated by a PDSCH group index field in the DCI format. The HARQ-ACK information is generated based at least on a T-DAI for a second PDSCH group different from the first PDSCH group. A bitwidth of information bits in the DCI format indicating the T-DAI is 2 regardless of the number of serving cells configured.

Abstract: The PUSCH is scheduled by a random-access response grant included in the random-access response, ML interlaces are configured for the active UL BWP, ILth interlace in the ML interlaces includes a set of resource blocks with index IVRB each of which satisfies relationship lL=mod(IVRB+Nstart,uBWP,i, ML), the Nstart,uBWP,i is a starting common resource block of the active UL BWP with index i, resource block assignment information in the random-access response grant indicates one or more interlaces from the ML interlaces, a first resource blocks assigned for the PUSCH in a case that the active UL BWP is different from an initial UL BWP are resource blocks in the one or more interlaces in the initial UL BWP, and a second resource blocks assigned for the PUSCH in a case that the active UL BWP is the initial UL BWP are same as the first resource blocks.

Abstract: A method for a user equipment (UE) which communicates with a base station in a serving cell is described. The method may comprise acquiring first radio resource control (RRC) information and second RRC information. The first RRC information may indicate one or more slot format combinations. The second RRC information may indicate periodic channel state information (CSI) reporting. The method may also comprise performing a first physical downlink control channel (PDCCH) monitoring if the first RRC information is provided. The first PDCCH monitoring may be monitoring of a first PDCCH with a first downlink control information (DCI) format. The method may further comprise performing the periodic CSI reporting on a physical uplink control channel according to the third RRC information.

Abstract: A terminal apparatus includes: a monitor unit configured to monitor a first PDCCH candidate with aggregation level 8 and a second PDCCH candidate with aggregation level 16 in a CORESET mapped to one OFDM symbol; and a receiver configured to receive a PDSCH, by assuming that a symbol of the PDSCH is mapped to a resource element that is not overlapping the second PDCCH candidate, based on a PDCCH detected in the first PDCCH candidate, the PDCCH scheduling the PDSCH, wherein a CCE that constitutes the first PDCCH candidate and has a lowest index is identical to a CCE that constitutes the second PDCCH candidate and has a lowest index, and a plurality of the CCEs constituting the CORESET each include six contiguous REGs in a frequency domain.

Abstract: Provided are a terminal apparatus and a communication method that are able to improve communication quality and an acquisition rate of transmission opportunity in a communication system requiring carrier sense. The terminal apparatus of the invention includes a reception unit that receives a frame and changes a CCA method on the basis of information included in the frame. The CCA method includes a method of setting a CCA level as a value other than a predetermined value of the CCA level. The reception unit has a function of performing carrier sense and a method of changing the CCA level includes a method of setting a period in which the carrier sense is performed as a value other than a value of a predetermined carrier sense period.

Abstract: A user equipment (UE) is described. The UE may comprise high-layer processing circuitry configured to acquire a first RRC parameter and transmission circuitry configured to transmit a PUSCH in multiple slots. If the first RRC parameter is set to a first value, conditions in a slot format procedure may not be used for determination of the multiple slots. If the first RRC parameter is set to a second value, the conditions in the slot format procedure may be used for the determination of the multiple slots.

Abstract: A terminal apparatus including a coding unit configured to code a payload of uplink control information (UCI) and to perform rate matching of coded bits of the payload and a transmitter configured to transmit the UCI, wherein the payload includes part or all of hybrid automatic repeat request-acknowledgement (HARQ-ACK) information, a scheduling request, and channel state information (CSI), a length EUCI of an output sequence of the rate matching is given based on a first number OCRC of cyclic redundancy check (CRC) bits, the first number OCRC of CRC bits is given based on a size of the payload, and a size of second CRC bits added to the payload is given based on the size of the payload and the length EUCI of the output sequence of the rate matching.