Abstract: A terminal apparatus for communicating with a base station apparatus is provided. The terminal apparatus includes a receiver configured to receive a first message from the base station apparatus, and a processing unit configured to establish a second packet data convergence protocol (PDCP) entity with a configuration identical to a configuration of a first PDCP entity for a first signaling radio bearer, based on a fact that a first configuration is configured. The first configuration is configured based on the first message.

Abstract: A terminal apparatus receives a higher layer parameter and a PDSCH, and generates a HARQ-ACK codebook and transmits the generated HARQ-ACK codebook on a PUCCH. In a case that a first parameter is configured, a first HARQ-ACK codebook and a second HARQ-ACK codebook are generated, the first HARQ-ACK codebook is used to transmit a HARQ-ACK bit corresponding to a PDSCH A, and the second HARQ-ACK codebook is used to transmit a HARQ-ACK bit corresponding to a PDSCH B. In a case that the first parameter is not configured, the first HARQ-ACK codebook is generated, and the first HARQ-ACK codebook is used to transmit the HARQ-ACK bit corresponding to the PDSCH B.

Abstract: Provided is a technology related to a terminal apparatus, a base station apparatus, a method, and an integrated circuit capable of reducing complexity of protocol processing, reducing deterioration of phone call quality, and efficiently performing communication. A terminal apparatus for communicating with a base station apparatus includes: a reception unit configured to receive an RRC message from the base station apparatus; and a processing unit configured to configure a packet loss prohibit timer according to a packet loss rate report prohibit timer field included in the RRC message and configured to, based on reception of a report of a packet loss rate from a higher layer and a fact that a packet loss rate report prohibit timer is not running, create a packet loss rate report content, start the packet loss rate report prohibit timer, and perform transmission to the base station apparatus.

Abstract: A terminal apparatus includes a receiver configured to receive data from a base station apparatus, and a processing unit. The processing unit maintains a first state variable in a receiving PDCP entity of the terminal apparatus, and performs processing of, in the maintaining, setting, based on a fact that the data to be received from the base station apparatus is data of an MBS, an initial value of a sequence number part of the first state variable as a first value and setting based on a fact that the data to be received from the base station apparatus is at least not the data of the MBS, the initial value of the first state variable to 0.

Abstract: A terminal apparatus configured with a first cell group and a second cell group includes a processing unit configured to trigger a PHR, and a transmitter configured to transmit the triggered PHR to a base station apparatus. The PHR is triggered by the processing unit, based on activation of the second cell group.

Abstract: A straddled vehicle, including a vehicle body having a rotatable handlebar; a steerable wheel, operation of which is transmitted mechanically to steer the steerable wheel; an actuator configured to apply a steering assisting force to the steerable wheel in accordance with the operation of the handlebar; and a control device configured to control the actuator by outputting a first physical quantity related to the steering assisting force, in accordance with a second physical quantity related to the operation of the handlebar. The control device performs, in response to an external instruction or fulfillment of a condition, setting or changing a dead band, which is a predetermined range of the second physical quantity in which the first physical quantity is not outputted even with the operation of the handlebar, and/or setting or changing an output increasing range in which as the second physical quantity increases, the outputted first physical quantity increases.

Abstract: A terminal apparatus receives a first configuration and a second configuration that are applied to a second cell group and first information. The terminal apparatus performs reconfiguration using the first configuration in a case of receiving a first value as the first information. The terminal apparatus performs reconfiguration using the second configuration in a case of receiving a second value as the first information. The terminal apparatus does not reset MAC and reestablishes RLC in the second cell group in a case of performing reconfiguration based on the first information.

Abstract: A terminal apparatus that communicates with a base station apparatus includes: a reception unit configured to receive a configuration of an initial uplink (UL) bandwidth part (BWP) and a configuration of an additional UL BWP via a radio resource control (RRC) message and receive a random access response (RAR) message including an RAR UL grant; and a transmission unit configured to transmit a physical uplink shared channel (PUSCH) in an active UL BWP, wherein one of the initial UL BWP and the additional UL BWP is activated as the active UL BWP, the PUSCH is scheduled by using the RAR UL grant, a first field included in the RAR UL grant is used to indicate frequency resource allocation of the PUSCH, and whether the first field is to be truncated or whether a bit is to be inserted into the first field is determined based on a bandwidth of the initial UL BWP.

Abstract: A terminal apparatus and a base station apparatus efficiently communicate. A terminal apparatus including a receiver configured to receive an RRC message including first configuration information and to receive DCI on a PDCCH, a determination unit configured to determine a time parameter for transmitting a PUSCH, based on a bit sequence indicated by a first field of the DCI, and a transmitter configured to transmit the PUSCH, based on the time parameter. A relationship between the bit sequence and the time parameter is defined by a first parameter group in a case that a first condition is satisfied and that the first configuration information includes the first parameter group and the relationship between the bit sequence and defined by a second parameter group in a case that a second condition is satisfied and that the first configuration information includes the second parameter group.

Abstract: Provided is a terminal apparatus configured to release, based on receiving, via a DCCH from the base station apparatus, an RRC message including a part of session information of an MBS session, an MBS radio bearer used to receive the MBS session.

Abstract: A terminal apparatus determines whether information (first information) indicating whether a state of a secondary cell group is to be changed based on scg-State is included in the RRC signaling, in a case that the first information is not included in the RRC signaling, the state of the secondary cell group is changed based on whether the scg-State is included in the RRC signaling, and in a case that the first information is included in the RRC signaling, the state of the secondary cell group is not changed based on whether the scg-State is included in the RRC signaling.

Abstract: A terminal apparatus configured with a first cell group and a second cell group includes a detector configured to detect a radio link failure of the first cell group, and a controller configured to initiate a first procedure for reporting the radio link failure of the first cell group. The first procedure is initiated based on transmission in the first cell group and the second cell group not being suspended, the second cell group not being in a first state, and the radio link failure of the first cell group being detected. The first state is a state in which a first BWP is activated in an SpCell of a corresponding cell group, a PDCCH is not monitored in the first BWP, and measurement of channel state information (CSI) for the first BWP is performed.

Abstract: A terminal apparatus includes: a reception unit configured to receive an MIB that configures a first CORESET, receive an SIB1 that configures a second CORESET, receive first information that configures an initial UL BWP and second information that configures an additional UL BWP, and receive a first DCI format that schedules a PUSCH in a common search space; and a transmission unit configured to specify a set of allocated resource blocks based on a first field included in a first DCI format and transmit a PUSCH in an active UL BWP, the active UL BWP being either the initial UL BWP or the additional UL BWP, the first value indicated by a first field is provided based on the size of the initial UL BWP, a first start position that is a start position of a set of allocated resource blocks, and the number of first resource blocks continuously allocated, and the common search space is used for a random access procedure.

Abstract: A terminal apparatus determines whether a candidate special cell (SpCell) associated with a conditional reconfiguration information element of an entry included in an entry list is identical to a special cell (SpCell) currently configured for the terminal apparatus, and does not cause an execution condition to be evaluated, the execution condition being included in the entry including the conditional reconfiguration information element of which the associated candidate SpCell is identical to the SpCell currently configured for the terminal apparatus.

Abstract: Provided is a terminal apparatus configured to establish, based on receiving, via a DCCH from the base station apparatus, an RRC message including a part of session information of an MBS session, an MBS radio bearer used to receive the MBS session.

Abstract: A terminal apparatus determines whether to delete all entries included in an entry list held by the terminal apparatus in a case that an RRC connection reconfiguration is performed, deletes all entries included in the entry list in a case that it is determined to delete all entries included in the entry list, and does not delete one or more entries included in the entry list in a case that it is determined not to delete all entries included in the entry list.

Abstract: A terminal apparatus includes a transmitter configured to transmit, in a case that the aperiodic channel state information reporting and the periodic channel state information reporting occur in a same time period for a certain cell group, only an aperiodic channel state information report in the same time period, transmit, in a case that the semi-persistent channel state information reporting and the aperiodic channel state information reporting occur in a same time period for a certain cell group, only the aperiodic channel state information report in the same time period, and transmit, in a case that the periodic channel state information reporting and the semi-persistent channel state information reporting occur in a same time period for a certain cell group, only a semi-persistent channel state information report in the same time duration.

Abstract: A terminal apparatus that communicates with a base station apparatus includes: a reception unit configured to receive a configuration of an initial uplink (UL) bandwidth part (BWP) and a configuration of an additional UL BWP via a radio resource control (RRC) message and receive a random access response (RAR) message including an RAR UL grant; and a transmission unit configured to transmit a physical uplink shared channel (PUSCH) in an active UL BWP, wherein one of the initial UL BWP and the additional UL BWP is activated as the active UL BWP, the PUSCH is scheduled by using the RAR UL grant, a first field included in the RAR UL grant is used to indicate frequency resource allocation of the PUSCH, and whether the first field is to be truncated or whether a bit is to be inserted into the first field is determined based on a bandwidth of the initial UL BWP.

Abstract: Provided is a terminal apparatus for communicating with a base station apparatus. The terminal apparatus includes a receiver configured to receive an RRC message including configuration information of a multicast broadcast service (MBS) from the base station apparatus, and a processing unit. The configuration information of the MBS includes MBS session information. The MBS session information includes PDU session information. The processing unit releases a radio bearer for the MBS used for reception of the MBS session, based on stop of the reception of the MBS session by the terminal apparatus, and performs processing of notifying a higher layer of a part or all of the MBS session information.

Abstract: Provided is a terminal apparatus including a receiver configured to receive an RRC message including configuration information of an MBS from a base station apparatus, and a processing unit. The configuration information of the MBS includes MBS session information. The MBS session information includes PDU session information. The processing unit, based on initiation of reception of the MBS session by the terminal apparatus, establishes a radio bearer for the MBS, and performs processing of notifying a higher layer of a part or all of the MBS session information.