Abstract: It is possible to efficiently perform uplink transmission. A terminal apparatus includes: a receiver configured to receive a PDCCH, and receive a PDSCH scheduled based at least on a DCI format included in the PDCCH; and a transmitter configured to report (transmit) HARQ-ACK information corresponding to the PDSCH. A slot for transmitting the HARQ-ACK information is indicated based at least on a combination of a value indicated by a PDSCH-to-HARQ feedback timing indicator field included in the DCI format and a prescribed element. The prescribed element at least includes some or all of an element 1, an element 2, an element 3, an element 4, an element 5, an element 6, an element 7, and an element 8.

Abstract: It is possible to efficiently perform uplink transmission. A terminal apparatus includes a receiver configured to receive a PDCCH and receive a PDSCH scheduled based at least on the PDCCH, in which either a first generation method or a second generation method is selected as a method for generating a HARQ-ACK codebook, in the HARQ-ACK codebook, as the first generation method, a HARQ-ACK information bit is set to an NACK, the HARQ-ACK information bit corresponding to a PDSCH that is not associated with the HARQ-ACK codebook according to a HARQ-ACK timing based on the certain information, and the second generation method is different from the first generation method.

Abstract: A terminal apparatus and a method are provided. The terminal apparatus includes a receiver configured to receive at least a channel state information-reference signal (CSI-RS) in a bandwidth part (BWP), a measurer configured to measure and evaluate one or more values of a channel quality indicator (CQI) by using at least the CSI-RS, the CQI including a wideband CQI or a subband CQI, and to measure and update a value of the wideband CQI in a case that an indicator, corresponding to the BWP, indicates the wideband CQI, and at least one of a first condition and a second condition is not satisfied, and a transmitter configured to transmit a CSI report including the value of the wideband CQI.

Abstract: Transmission in uplink and downlink can be efficiently performed. A terminal apparatus includes a processing unit configured to resolve overlapping of multiple PUCCH resources, and a transmitter configured to transmit a PUCCH as an output of the processing unit, wherein in a case that a first PUCCH resource overlaps a second PUCCH resource, the processing unit multiplexes first UCI included in the first PUCCH resource and second UCI included in the second PUCCH resource into a third PUCCH resource, and a first parameter NPUCCHrepeat for a first PUCCH format of the first PUCCH resource and a second parameter NPUCCHrepeat for a second PUCCH format of the second PUCCH resource are expected to be identical to a third parameter NPUCCHrepeat for a third PUCCH format of the third PUCCH resource.

Abstract: A method for a user equipment (UE) which communicates with a base station is described. The method may comprise acquiring radio resource control (RRC) configuration information. The RRC configuration information may indicate one or more entries, each of the entries specifying a slot format. The method may also comprise receiving a physical signal and a physical downlink control channel (PDCCH) with a downlink control (DCI) format. The DCI format may include a first information field and a second information field. The first information field may indicate an entry out of the entries. The second information field may indicates channel occupancy status of all channel access bandwidths in a bandwidth part.

Abstract: The present invention is capable of performing communication efficiently.

Abstract: A terminal apparatus includes a transmitter configured to transmit, in one uplink BWP of one serving cell, a first PUSCH corresponding to a configured uplink grant, and a receiver configured to receive, in one downlink BWP of the one serving cell, downlink control information to be used to schedule a second PUSCH on a PDCCH, in which, in a case that a duration of the first PUSCH overlaps a duration of the second PUSCH in the one uplink BWP, a first uplink symbol of the first PUSCH is expected to not be earlier than a first (next) uplink symbol at which a CP begins after a predetermined period of time after a last symbol of the PDCCH.

Abstract: A terminal apparatus includes a receiver configured to monitor a PDCCH with a DCI format on an active downlink BWP in a serving cell in a Secondary Cell Group (SCG), the DCI format being used for scheduling a PDSCH, and receive the PDSCH on the downlink BWP, and a transmitter configured to transmit a HARQ-ACK on a PUCCH.

Abstract: A base station which communicates with a user equipment (UE) is described. The RRC configuration information may indicate that a maximum number of codewords scheduled by DCI is two. The base station may comprise transmitting circuitry configured to, after a channel access procedure, transmit, to the UE, a PDSCH which contains only a first transport block. The base station may further comprise receiving circuitry configured to receive, from the UE, a HARQ-ACK feedback including at least a first HARQ-ACK information bit and a second HARQ-ACK information bit. The first HARQ-ACK information bit may correspond to the first transport block of the PDSCH. The second HARQ-ACK information bit may be set to NACK. A contention window for the channel access procedure may be adjusted using the HARQ-ACK feedback, wherein the second HARQ-ACK information bit may be ignored.

Abstract: A method for a base station which communicates with a user equipment (UE) in a bandwidth including a plurality of channel access sub-bands in a serving cell is described. The method may comprise sensing each of the plurality of the channel access sub-bands. The method may also comprise transmitting downlink signal after sensing. A counter and a contention window size may be managed per sub-band for channel access.

Abstract: A terminal apparatus includes a receiver configured to receive a physical downlink shared channel and a transmitter configured to multiplex first channel state information having a higher priority than second channel state information with the second channel state information and an HARQ-ACK and to transmit the first channel state information, the second channel state information and the HARQ-ACK multiplexed, by using a physical uplink control channel resource.

Abstract: A method for a base station which communicates with a user equipment (UE) is described. The method may comprise sending first radio resource control (RRC) configuration information. The first RRC configuration information may indicate code block group (CBG) transmission for a Physical Downlink Shared Channel (PDSCH). The method may also comprise sending second RRC configuration information. The second RRC configuration information may indicate Nmax which is a maximum CBGs per transport block. The method may further comprise, after a channel access procedure, transmitting, to the UE, a PDSCH containing a transport block with N CBG(s). N is an integer. The method may further comprise receiving, from the UE, a HARQ-ACK feedback including Nmax HARQ-ACK information bits for the transport block of the PDSCH. If N is smaller than Nmax, the HARQ-ACK information bit(s) for last Nmax-N CBG(s) may be set to NACK.

Abstract: Communication can be efficiently performed. In a case that a terminal apparatus is configured to monitor a first PDCCH candidate in a CSS and a second PDCCH candidate in a USS according to a DCI format accompanied with a C-RNTI in one non-interleaved CORESET having a period of one OFDM symbol, an aggregation level of the first PDCCH candidate is 8, an aggregation level of the second PDCCH candidate is 16, a lowest index of a CCE constituting the first PDCCH candidate is the same as a lowest index of a CCE constituting the second PDCCH candidate, a higher layer parameter PDCCH-DMRS-Scrambling-ID is not configured for the CORESET, and a size of the DCI format corresponding to the first PDCCH candidate is the same as a size of the DCI format corresponding to the second PDCCH candidate, it is considered that the DCI format is transmitted only in the first PDCCH candidate.

Abstract: A terminal apparatus includes a receiver configured to monitor a PDCCH with a DCI format in a control resource set, and receive a PDSCH scheduled by the DCI format, wherein the DCI format includes a frequency domain resource assignment field, in a case that the number of bits of the frequency domain resource assignment field is given at least based on the number NtargetRB of resource blocks of a first bandwidth, and the frequency domain resource assignment field is applied to the first bandwidth, a value NRIV indicated by the frequency domain resource assignment field is given based on a first method, and in a case that the number of bits of the frequency domain resource assignment field is given at least based on the number NsizeRB of resource blocks of a second bandwidth, and the frequency domain resource assignment field is applied to the first bandwidth, the value NRIV is given based on a second method.

Abstract: To enable efficient uplink transmission. A terminal apparatus includes: a coder configured to code a UCI payload and perform rate matching of coded bits of the UCI payload; and a transmitter configured to transmit the UCI payload by using a PUSCH, the UCI payload includes at least HARQ-ACK information and/or CSI, a length of an output sequence EUCI of the rate matching is provided based on a first number of CRC bits LUCI, the first number of CRC bits LUCI is provided based on a size of the payload, and a size of second CRC bits added to the payload is provided based on the size of the payload and the length of the output sequence EUCI of the rate matching.