Abstract: Provided is a terminal apparatus configured to: receive, in a first PDCCH, a first uplink grant to which first CRC parity bits scrambled with a C-RNTI for a dynamically scheduled transmission is attached; receive, in a second PDCCH, a second uplink grant to which second CRC parity bits scrambled with SPS C-RNTI for a semi-persistently scheduled transmission is attached; perform multiple transmissions corresponding to a bundle, based on the first uplink grant or the second uplink grant; and determine a redundancy version corresponding to each of the multiple transmissions, excluding a first transmission of the multiple transmissions, based at least on whether the bundle is associated with the second uplink grant.

Abstract: A terminal apparatus includes a coding unit configured to divide a transport block into one or more code blocks and generate coded bit(s) by coding the one or more code blocks; and a transmitter configured to transmit the coded bit(s) by using a channel, wherein multiplex bit(s) are given based on at least coupling of the coded bit(s) generated by coding of the one or more code blocks, the coding unit maps the multiplex bit(s) to a matrix in a first-axis prioritized manner and reads the multiplex bit(s) from the matrix in the first-axis prioritized manner or in a second-axis prioritized manner, and whether the first axis or the second axis is prioritized in a case that the multiplex bit(s) are read from the matrix is given based on at least whether a signal waveform applied to a prescribed channel is an OFDM.

Abstract: A terminal apparatus receives a message including configuration information of a set of downlink bandwidth parts (BWPs) for a primary cell; and deactivates a downlink MVP of the downlink BWPs, the downlink BWP being activated in the primary cell and activates any one of the downlink BWPs in the set of the downlink BWPs for the primary cell, wherein the deactivation and the activation are based on information, included in the message, for indicating the downlink BWP to be activated.

Abstract: A terminal apparatus capable of efficiently performing the uplink and/or downlink communication is provided. The terminal apparatus receives higher layer signaling used for configuration of multiple scheduling request configurations, and transmits HARQ-ACK bits and scheduling request bits by using a HARQ-ACK PUCCH resource. Each of the multiple scheduling request configurations corresponds to one or more logical channels. Each of the multiple scheduling request configurations includes an SR PUCCH resource. The scheduling request bits are added to a sequence of the HARQ-ACK bits. In a case that the HARQ-ACK PUCCH resource and SR PUCCH resource overlap with each other in a time domain, a size of the scheduling request bits is given based on a number of scheduling request configurations with the overlapping SR PUCCH resource.

Abstract: A terminal apparatus includes: a receiver configured to receive a PDCCH including a DCI format used for scheduling of a PDSCH, and the PDSCH; and a transmitter configured to transmit a HARQ-ACK on a PUCCH, wherein an index of a downlink reference signal quasi co-located (QCLed) with an antenna port of a downlink reference signal associated with the PDSCH is given based on a control resource set in which the PDCCH is detected.

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: Uplink control information can be efficiently transmitted. A terminal apparatus (1) receives an uplink grant used for scheduling of a PUSCH in a serving cell and an uplink grant used for scheduling of a sPUSCH in the serving cell, transmits a periodic channel state information report by using the PUCCH in the serving cell, and in a case that transmission of the sPUSCH occurs in a subframe in which transmission of the periodic channel state information report by using the PUCCH has already started, stops the transmission of the PUCCH already started. According to the present invention, the terminal apparatus (1) can efficiently transmit the uplink control information. The base station apparatus (3) can efficiently receive the uplink control information.

Abstract: A terminal apparatus receives higher layer signaling and a PDCCH. The higher layer signaling includes an RRC parameter for indicating a slot in which the PDCCH is to be monitored. The PDCCH includes slot structure information. The slot structure information indicates a slot structure for a slot n next to a slot in which the PDCCH is received. The terminal apparatus controls whether or not to monitor a PDCCH in the slot n, based on at least the RRC parameter and the slot structure information.

Abstract: The present invention efficiently performs communication. Included are a transmitter configured to transmit a measurement report including a measurement result for a serving cell c and/or a PUSCH for the serving cell c, wherein in a case that the number of SS blocks and/or CSI-RSs used for the RSRP measurement is greater than one for the serving cell c, the measurement result of RSRP included in the measurement report and the RSRP used for evaluation of a path loss for transmit power of the PUSCH are calculated separately.

Abstract: The present invention is provided with: a radio resource control layer processing unit (16) configured to configure the number of PDCCH candidates configured in a dedicated control resource set, based on RRC signaling; a receiver (10) configured to monitor the multiple PDCCH candidates in the dedicated control resource set; and a decoding unit configured to decode the PDCCH candidates. a first number of the PDCCH candidates are monitored in the dedicated control resource set in a time period in which a common control resource set is not configured, a second number of the PDCCH candidates are monitored in the dedicated control resource set in a time period in which the common control resource set is configured, and a third number of the PDCCH candidates are monitored in the common control resource set. The sum of the second number and the third number is equal to the first number.

Abstract: A terminal apparatus capable of efficiently performing a random access procedure is a terminal apparatus that communicates with a base station apparatus by using multiple serving cells including a primary cell and one or multiple secondary cells, and includes a medium access control layer processing unit (15) for starting a random access procedure in any one of the multiple serving cells based on a PDCCH order, a transmitter (10) for transmitting a random access preamble in any one of the multiple serving cells, and a receiver (10) for receiving a random access response, in which the medium access control layer processing unit (15), in a case that reception of the random access response is considered not successful, determines whether to automatically resume transmission of the random access preamble or not, at least based on which of the primary cell and the secondary cell is used to transmit the random access preamble.

Abstract: An apparatus includes a receiver configured to receive first RRC signaling, a controller configured to determine transmit power of a PUCCH, and a transmitter configured to transmit uplink control information on the PUCCH. The first RRC signaling includes information indicating whether or not frequency hopping is applied to the PUCCH. The transmit power of the PUCCH is given based on at least a parameter ?x. The parameter ?x is given based on at least whether or not the frequency hopping is applied to the PUCCH.

Abstract: A decrease in access rate to a wireless medium caused by an exposed terminal apparatus is improved. A wireless communication apparatus of the present invention includes a reception unit that receives a frame indicating start of a medium protection operation, and acquires, from the frame indicating the start of the medium protection operation, BSS identification information for identifying a BSS to which a transmission-source wireless communication apparatus of the frame indicating the start of the medium protection operation belongs, and a transmission unit that determines whether or not to start a transmission operation of a frame addressed to another wireless communication apparatus belonging to a BSS to which the wireless communication apparatus belongs based on the BSS identification information.

Abstract: A terminal apparatus (1) capable of efficiently performing a random access procedure includes a medium access control layer processing unit (15) for starting a random access procedure based on a PDCCH order, a transmitter (10) for transmitting a random access preamble by using a Physical Random Access CHannel (PRACH), and a transmit power controller (17) for setting transmit power for transmitting the random access preamble based on a transmission counter, in which the transmission counter is configured at least based on a first piece of information and a second piece of information included in the PDCCH order, the first piece of information is used for indicating the random access preamble, and the second piece of information is used for selecting a resource of the PRACH.

Abstract: Included are: a receiver configured to receive a PDCCH with DCI format; and a transmitter configured to perform corresponding PUSCH transmission in subframe n+k upon detection of the PDCCH in subframe n. The value of k is given based on whether a search space in which the PDCCH is detected is CSS or USS.

Abstract: Uplink control information can be efficiently transmitted. A terminal apparatus (1): (i) receives an uplink grant used for scheduling of a PUSCH and an uplink grant used for scheduling of a sPUSCH; (ii) transmits uplink control information; and (iii) in a first case of performing sPUSCH transmission in a first subframe in the primary cell and performing PUSCH transmission in the first subframe in the secondary cell, transmits the uplink control information by using the PUSCH in the first subframe in the secondary cell.

Abstract: A base station apparatus (3) includes a receiver (30) configured to receive an initial transmission of a transport block and a transmitter (30) configured to transmit a PDCCH for retransmission of the transport block. An uplink grant for the initial transmission of the transport block is included in a random access response corresponding to a non-contention based random access procedure. A type of a search space in which the PDCCH for retransmission of the transport block is transmitted is determined, based at least on whether an RRC layer parameter shortProcessingTime is configured for the terminal apparatus.

Abstract: Communication opportunities of existing terminal devices are ensured, in a communication system in which terminal devices capable of using a new CCA level and the existing terminal devices using an existing CCA level coexist, on the premise of CSMA/CA. A communication method of a radio transmission device of the present invention includes a step of signaling information indicating a first CCA section and a second CCA section to the radio reception device. A communication method of a radio reception device of the present invention includes a step of performing the carrier sense based on a first CCA level and a second CCA level, and a step of performing the carrier sense based on the first CCA level, in the first CCA section, based on information indicating the first CCA section.

Abstract: A terminal apparatus capable of efficiently performing uplink and/or downlink communication is provided. Multiple CBs included in the transport block is decoded. HARQ-ACKs corresponding to multiple CBG are transmitted. The multiple CBs include one or more first CBs and one or more second CBs. A first size of a first CB of the one or more first CBs is greater than a second size of a second CB of the one or more second CBs. Each of the multiple CBs is included in any one of the multiple CBGs. The multiple CBGs include one or more first CBGs and one or more second CBGs. A first total number of the one or more first CBs and the one or more second CBs included in each of the one or more first CBGs is greater than a second total number of the one or more first CBs and the one or more second CBs included in each of the one or more second CBGs.

Abstract: The terminal apparatus derives CSI, transmits the CSI, and determines content of the CSI based on a type of a downlink physical channel that is allocated to a CSI reference resource or allocated before and closest to the CSI reference resource.