Abstract: A user equipment (UE) and a base station (gNB) are described. The UE includes a higher layer processor configured to determine Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK) feedback timing of HARQ-ACK feedback used for ultra-reliable low-latency communication (URLLC) physical downlink shared channel (PDSCH) transmissions. The higher layer processor is also configured to determine a physical uplink control channel (PUCCH) resource for the HARQ-ACK feedback. The UE also includes transmitting circuitry configured to transmit at least one HARQ-ACK bit based on the HARQ-ACK feedback timing and the PUCCH resource. The gNB includes a higher layer processor configured to determine HARQ-ACK feedback timing of HARQ-ACK feedback used for PDSCH transmissions, and to determine a PUCCH resource for the HARQ-ACK feedback. The gNB also includes reception circuitry configured to receive at least one HARQ-ACK bit based on the HARQ-ACK feedback timing and the PUCCH resource.

Abstract: A terminal apparatus includes a receiver configured to receive, from a base station apparatus, a signal including first information for indicating a plurality of Quasi Co-Location (QCL) parameters associated with a plurality of reference signals, and receive, from the base station apparatus, a signal including second information for configuring one of the plurality of QCL parameters, and a monitor unit configured to receive a downlink control channel of a QCL parameter of the plurality of QCL parameters based on the first information and the second information.

Abstract: When a terminal device receives a MAC CE indicating activation of a second cell in subframe n and an action of monitoring a PDCCH for a first cell is not applied in subframe n+8, an action related to CSI reporting for the second cell on a PUCCH is applied in a subframe that is no earlier than subframe n+8 and in which an action of monitoring the PDCCH for the first cell is applied. When the terminal device receives the MAC CE indicating activation of the second cell in subframe n, the action related to the CSI reporting for the second cell on the PUCCH is applied in subframe n+8, irrespective of whether the action of monitoring the PDCCH for the first cell is applied in subframe n+8.

Abstract: A terminal apparatus includes a higher layer processing unit configured to receive first information and second information, and a receiver configured to receive a block and a physical downlink shared channel. The first information includes information for indicating a periodicity of one or more of the blocks. Each of the one or more blocks includes a first synchronization signal, a second synchronization signal, and a physical broadcast channel. The second information includes information for indicating time positions of the one or more blocks included in a certain time period. The physical downlink shared channel is not received in a resource element for a synchronization signal block at a time position of the time positions indicated by the second information.

Abstract: A user equipment (UE) is described. The UE includes a higher layer processor configured to configure physical uplink control channel (PUCCH) resources for ultra-reliable low-latency communication (URLLC) traffic. The UE also includes transmitting circuitry configured to transmit HARQ-ACK feedback for URLLC downlink (DL) data based on the configured PUCCH resource and HARQ-ACK status.

Abstract: A terminal apparatus configured to receive a measurement configuration from one or more base station apparatuses transmits a first measurement result and a second measurement result, and the first measurement result includes, as measurement results of a serving cell, the measurement results of the serving cell of a first cell group and the serving cell of a second cell group, and the second measurement result includes, as a measurement result of a serving cell, the measurement result of the serving cell of the second cell group.

Abstract: A terminal apparatus includes: a higher layer processing unit configured to receive first information and second information; and a receiver configured to receive a block including a first signal, a second signal, a third signal, and a physical broadcast channel, wherein the first information includes information for indicating a periodicity of one or more of the blocks, the second information includes information for indicating time positions of the one or more of the blocks included in a certain time period, a cell ID is detected from the first signal and the second signal, and an index of the block is detected from the third signal.

Abstract: A terminal device transmits a signal to a base station apparatus through uplink. The terminal device considers a priority level for multiple MAC control elements in the logical channel prioritization procedure for the uplink, in a case where initial transmission is performed. At least first and second MAC control elements are included in the multiple MAC control elements. The first MAC control element provides the base station apparatus with information on an amount of first data available for transmission within a first buffer for the uplink. The second MAC control element provides the base station apparatus with information on amount of second data available for transmission within a second buffer for a first link that is used for communication between the terminal device and a different terminal device. The first MAC control element has a higher priority level than the second MAC control element except when being included for padding.

Abstract: There is provided a terminal device that communicates with a base station device. The terminal device includes a reception unit that receives downlink control information which is used for scheduling of a physical uplink shared channel and includes first information used to trigger a report of channel state information using the physical uplink shared channel, a higher layer signal including second information used to indicate two subframe sets, and the higher layer signal including third information.

Abstract: A communication method for a terminal device is disclosed. The communication method includes transmitting first channel state information report, second channel state information report, and a scheduling request. The communication method also includes in a certain subframe, transmitting, in a case that there is only the first channel state information report, the first channel state information report on a first Physical Uplink Control Channel (PUCCH) resource, and transmitting, in a case that there are the first channel state information report and the second channel state information report, the first channel state information report and the second channel state information report on a second PUCCH resource different from the first PUCCH resource. The communication method uses the second PUCCH resource for transmission of the scheduling request, the first channel state information report, and the second channel state information report.

Abstract: Provided is a terminal apparatus configured to communicate with a base station apparatus. The terminal apparatus includes: a higher layer processing unit configured to receive first information including a setting for semi-persistent channel state information-reference signal (CSI-RS) for measuring channel state information; a medium access control (MAC) layer configured to receive second information including information for activating the semi-persistent CSI-RS; and a receiver configured to receive a physical downlink shared channel (PDSCH). In the terminal apparatus, in a case where the semi-persistent CSI-RS is activated, a resource element to be used for the activated reference signal is not to be used as a resource element for the physical downlink shared channel.

Abstract: An Integrated Access and Backhaul (IAB) node that communicates over a radio interface, the IAB node comprising: transmitting circuitry configured to perform a synchronization signal and physical broadcast channel block (SS/PBCH block) transmission(s), wherein a first symbol index(es) of a time position(s) for a candidate(s) of a SS/PBCH block(s) is determined based on a subcarrier spacing of the SS/PBCH and whether the SS/PBCH block transmission(s) is from an IAB donor or an IAB node.

Abstract: A terminal apparatus includes a monitor unit configured to monitor qualities of a plurality of links, each being associated with at least one reference signal, a controller configured to send an indication to a higher layer in a case that qualities of a prescribed number of links among the qualities of the plurality of links are worse than a threshold, and a higher layer processing unit configured to perform a recovery request to a base station apparatus in a case of receiving a prescribed number of the indications, and end the recovery request in a case of receiving a prescribed physical downlink control channel.

Abstract: A terminal device and a base station device are capable of communicating with each other efficiently using an uplink channel. The terminal device transmits a transport block on a first shared channel upon detection of a control channel including first control information. For the first control information along with a CRC parity bit scrambled by a first identifier, a size of the transport block is given using a first information field included in the first control information along with the CRC parity bit scrambled by the first identifier, based on whether a second shared channel for an initial transmission of a transport block identical to the transport block corresponding to the first control information is scheduled by a random access response grant.

Abstract: A terminal apparatus which performs periodic channel state information reporting to a base station apparatus, the terminal apparatus including a reception unit that receives first information, second information, and index information indicating a value for reporting periodicity of the channel state information, from the base station apparatus, and a transmission control unit that determines the value for reporting periodicity of the channel state information on the basis of the index information, in which the applicable value is based on a certain UL-DL configuration, in which, in a case where the second information is not configured, the certain UL-DL configuration is a UL-DL configuration indicated by the first information, and in which, in a case where the second information is configured, the certain UL-DL configuration is a UL-DL configuration indicated by the second information.

Abstract: There is provided a terminal apparatus configured to communicate with a base station apparatus. The terminal apparatus is configured to: receive information indicating a subframe of a first subframe set and a subframe of a second subframe set by using a higher layer signaling.

Abstract: A terminal apparatus receives first information for identifying one or multiple random access channel occasions, and receives second information for identifying an index of a random access preamble. In a case that a first condition is satisfied, the terminal apparatus selects, from one or multiple reference signals, one reference signal based on a measurement of each of the one or multiple reference signals. In a case that a second condition is satisfied, the terminal apparatus selects one reference signal of the one or multiple reference signals associated with a PDCCH used to receive the second information. The terminal apparatus selects, from the one or multiple random access channel occasions, one random access channel occasion associated with the one reference signal selected.

Abstract: An Integrated Access and Backhaul (IAB) node that communicates over a radio interface, the IAB node comprising: receiving circuity configured to receive first bitmap information used for indicating which synchronization signal and physical broadcast channel block (SS/PBCH block) is transmitted in a SS/PBCH block transmission(s), the receiving circuity configured to receive second information used for indicating whether the SS/PBCH transmission is muted or not, and transmitting circuitry configured to perform, based on the first bitmap information and the second information, the SS/PBCH transmission(s).

Abstract: To efficiently transmit a power headroom. An apparatus includes a receiver configured to receive first information and receive a physical downlink control channel, the first information including a resource configuration of one or more sounding reference signals, and a transmitter configured to transmit information indicating a first power headroom level for a physical uplink shared channel associated with a sounding reference signal resource index included in downlink control information carried on the downlink control channel, and transmit information indicating a second power headroom level for a physical uplink shared channel associated with a sounding reference signal resource index not included in the downlink control information carried on the downlink control channel.

Abstract: A terminal apparatus (1, 1A, 1B) includes: a receiver (10) configured to receive preamble index information on a physical downlink control channel; and a transmitter (10) configured to, in a case where the preamble index information indicates a prescribed value, select a block from one or more blocks to transmit a random access preamble based on the block selected, and in a case where the preamble index information indicates a value other than the prescribed value, transmit the random access preamble corresponding to a preamble index indicated by the preamble index information, wherein the block includes four OFDM symbols to which at least a synchronization signal and a physical broadcast channel are mapped.