Abstract: An apparatus includes: a receiver configured to receive a PDCCH including downlink control information; and a transmitter configured to transmit a sPUSCH, based at least on detection of the PDCCH. The sum of the number of symbols to which the sPUSCH is mapped and the number of SC-FDMA symbols to which a DMRS associated with the sPUSCH is mapped is 2 and/or 3. In a case that a CRC added to the downlink control information is scrambled with a C-RNTI, the index of the SC-FDMA symbol to which the DMRS associated with the sPUSCH is mapped is given based at least on the downlink control information. In a case that the CRC added to the downlink control information is scrambled with an SPS C-RNTI, the index of the symbol to which the DMRS associated with the sPUSCH is mapped is given based at least on higher layer signaling.

Abstract: A terminal apparatus includes a receiver configured to receive a PDCCH including downlink control information used for scheduling of a PUSCH, a coding unit configured to encode uplink control information, and a transmitter configured to transmit the uplink control information by using the PUSCH. A coding rate R and a modulation order Qm are given based on one field included in the downlink control information. The number Q of coded bits of the uplink control information is given at least based on the number Q? of coded modulation symbols for the uplink control information and the modulation order Qm. The number Q? of coded modulation symbols is given at least based on the coding rate R and the modulation order Qm.

Abstract: A terminal apparatus receives a transport block in a primary cell, selects a first transmission method in a case that a scheduling request is a negative scheduling request, HARQ-ACK is transmitted in a subframe n, and a subframe q in a secondary cell does not correspond to any of first prescribed subframes, selects a second transmission method in a case that the subframe q corresponds to one of the first prescribed subframes, and transmits the HARQ-ACK in a PUCCH resource for the HARQ-ACK, wherein the subframe q is given by n?4 in a case that a first higher layer parameter for the secondary cell is not configured, and the subframe q is given by n?3 in a case that the first higher layer parameter for the secondary cell is configured for the terminal apparatus 1.

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: 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: To efficiently transmit channel state information. A terminal apparatus includes a receiver configured to receive information for configuring a first mode and information for configuring a second mode and receive an UL grant to be used for scheduling of a PUSCH and an UL grant to be used for scheduling of a sPUSCH; and transmits CSI on the PUSCH by using the first mode, based on the UL grant to be used for scheduling of the PUSCH, and transmits CSI on the sPUSCH by using the second mode, based on the UL grant to be used for scheduling of the sPUSCH.

Abstract: The terminal apparatus receives a PHICH and a PDCCH, and in a case that transmission of a transport block corresponding to a first HARQ process and transmission of a transport block corresponding to a second HARQ process, each having a different processing time from reception of the PDCCH to transmission of a PUSCH, occur in an identical uplink subframe, an ACK is set as a state variable HARQ_FEEDBACK of the first HARQ process.

Abstract: A terminal apparatus includes a transmitter configured to transmit capability information of the terminal apparatus, and a receiver configured to perform blind detection of a PDCCH from a search space in a control resource set, wherein in a case that a capability of blind detection is supported, the blind detection detecting the PDCCH from search spaces in control resource sets the number of which is greater than a prescribed number in a prescribed duration, the transmitter transmits, as the capability information of the terminal apparatus, at least two of pieces of information including (a) a maximum number of blind detections that can be performed in the prescribed duration, (b) a maximum number of blind detections in a unit time, (c) a maximum number of blind detections based on configuration for the control resource set, and (d) a maximum number of the control resource sets for which blind detections can be simultaneously performed.

Abstract: In a case that transmission of a PUSCH is transmission of the PUSCH in a 2 step contention based random access procedure, the complex-valued symbol is not mapped to the resource element of last one or more prescribed SC-FDMA symbols in the prescribed subframe, and in a case that the transmission of the PUSCH is not the transmission of the PUSCH in the 2 step contention based random access procedure and a first field (PUSCH ending symbol) included in downlink control information for indicating the transmission of the PUSCH indicates 1, the complex-valued symbol is not mapped to the resource element of a last SC-FDMA symbol in the prescribed subframe.

Abstract: A communication method used by a terminal apparatus includes the step of separately generating first coded bits fk of a transport block, second coded bits q0 of control information, and third coded bits q1 of a rank indicator, and multiplexing the first coded bits fk and the second coded bits q0 to generate multiplexed bits gk, and the step of multiplexing the multiplexed bits gk and the third coded bits q1 to generate a first sequence hk, wherein the position where the third coded bits q1 are mapped is given at least based on a part of a first condition, a second condition, and a third condition, the first condition is whether a search space detecting the PDCCH is a CSS or a USS, the second condition is which RNTI is used to scramble CRC parity bits attached to the DCI format, and the third condition is whether the first method or the second method is used for the first coded bits.

Abstract: A terminal apparatus in an initial access calculates, from the RSRP of the SS block, a downlink path loss used for transmission power of the PRACH, and determines a reference used for the downlink path loss used for transmission power of a first PUSCH scheduled by a random access response grant, based on system information included in the random access response grant, wherein the system information further includes a first parameter for indicating a subcarrier spacing for the first PUSCH and a second parameter for indicating a signal waveform for the first PUSCH.

Abstract: A terminal apparatus capable of efficiently performing uplink and/or downlink communication is provided. With respect to communication related to transport blocks and code block groups, in a case that a PDSCH and/or a PUSCH is scheduled by a PDCCH detected in a common search space CSS, an operation applied to a transmission process includes a prescribed operation regardless of a prescribed condition and first configuration information. In a case that the PDSCH and/or the PUSCH is scheduled by the PDCCH detected in a UE-specific search space USS, the operation applied to the transmission process is provided, based at least on the prescribed condition and/or the first configuration information.

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 PDCCH including a DCI format, and performs PUSCH transmission based on detection of the PDCCH. In an HARQ process corresponding to the PUSCH transmission, a value of an UL HARQ Round Trip Timer (RTT) timer for the HARQ process is provided based at least on a first condition and/or a second condition. The first condition is that a search space for the PDCCH detected is either a common search space or a UE-specific search space. The second condition is that a type of the HARQ process is either a synchronous HARQ or an asynchronous HARQ.

Abstract: A terminal apparatus receives an uplink grant used to schedule a PUSCH; transmits, in a case that an HARQ-ACK request included in the uplink grant is set so as to trigger transmission of an HARQ-ACK, the HARQ-ACK on the PUSCH corresponding to the uplink grant; and transmits, in a case that a CSI request included in the uplink grant is set so as to trigger a CSI report, an RI on the PUSCH corresponding to the uplink grant, in which an index of an SC-FDMA symbol in which the RI is transmitted is provided based on a value of the HARQ-ACK request.

Abstract: To perform communication efficiently. The present invention includes: a higher layer processing unit configured to configure an EUTRA NR Dual Connectivity (EN-DC) configuration and a configuration related to an EUTRA cell; a transmitter configured to transmit the EUTRA NR Dual Connectivity (EN-DC) configuration, the configuration related to the EUTRA cell, and a Downlink Control Information (DCI) format; and a receiver configured to receive HARQ-ACK, wherein in a case that a parameter related to single transmission for the EUTRA cell is included in the EN-DC configuration, and that an EUTRA Cell Group (CG) includes at least one Time Division Duplex (TDD) cell, a value of harq-Offset-r15 is set to 0.

Abstract: A terminal apparatus includes a receiver configured to monitor a PDCCH in a control resource set and a transmitter configured to transmit a PUSCH scheduled based on an uplink grant included in a DCI format transmitted in the PDCCH. The PDCCH includes one or more Control Channel Elements (CCEs). One of the one or more CCEs includes six Resource Element Groups (REGs). One of the REGs includes a PRB in an OFDM symbol. The one CCE includes one or more REG bundles non-continuously mapped in a frequency domain. One of the one or more REG bundles includes one or a plurality of the REGs. The number of the REGs constituting the one REG bundle in the frequency domain is given per the number of OFDM symbols in the one CCE.

Abstract: Provided is a terminal apparatus including: a measurement unit that can measure a time difference between reception and transmission by the terminal apparatus; a transmitter that can report a measurement result of the time difference based on an event associated with the measurement of the time difference, wherein in a case that the prescribed Transmission Time Interval (TTI) length is configured, and in addition, in a case that the measurement result is greater than a prescribed threshold, the transmitter reports the measurement result to the terminal apparatus. The transmission efficiency is thus improved.

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: A terminal apparatus includes a receiver configured to receive a DCI format including an uplink grant, and a transmitter configured to transmit a PUSCH or an sPUSCH based on the uplink grant. A TTI of the PUSCH is one sub-frame. A TTI of the sPUSCH is shorter in value than one slot. In a case that a transmission of a channel quality indicator is triggered in response to a transmission of the PUSCH, the uplink control information is transmitted in the PUSCH. In a case that a transmission of a channel quality indicator is triggered in response to a transmission of the sPUSCH, a transmission of the uplink control information is dropped.