Abstract: A method by a user equipment (UE) is described.

Abstract: A terminal apparatus includes a reception circuitry configured to receive a DCI format, and a transmission circuitry configured to repeatedly transmit, on a PUSCH, a transport block scheduled by the DCI format, wherein a first number of repetition transmissions, a second number for a symbol number of a start symbol, and a third number of consecutive symbols are given based on the DCI format, and the number of slots used for repetition transmission of the transport block is determined based on the first number, the second number, the third number, and the number of symbols per slot.

Abstract: A method by a user equipment (UE) is described. The method includes transmitting, to a base station, a capability to indicate multiple combinations (X, Y) for PDCCH monitoring, each combination (X, Y) is associated with a respective maximum number of monitored PDCCH candidates, determining spans in which PDCCH is monitored, and each span is a number of consecutive OFDM symbols up to Y, determining, from the multiple combinations (X, Y), one or more combinations (X, Y) in which the value of X is equal to or less than the minimum value of the gap separation of every two consecutive spans, determining, from the one or more combinations (X, Y), a combination (X, Y) with a larger maximum number of monitored PDCCH candidates for PDCCH monitoring.

Abstract: A terminal apparatus for communicating with a base station apparatus includes a receiver configured to receive, from the base station apparatus, a message indicating mobility from a first Radio Access Technology (RAT) to a second RAT, and a processing unit configured to attempt to select a cell. A requirement for the processing unit to attempt to select a cell in the second RAT in a case that processing of the mobility in accordance with the message fails is that establishment of a connection to the second RAT is not successful and first information is included in the message.

Abstract: According to the present invention, a method performed by user equipment (UE) is proposed, comprising: identifying, for a received uplink grant, a hybrid automatic repeat request (HARQ) process corresponding to the uplink grant; determining whether the uplink grant is used for a new transmission or a retransmission; and in the case of determining that the uplink grant is used for the new transmission, for an uplink grant with physical uplink shared channel (PUSCH) duration not overlapping with PUSCH duration of another uplink grant, or an uplink grant with PUSCH duration only overlapping with PUSCH duration of another uplink grant with a lower priority, or a dynamic uplink grant with PUSCH duration not overlapping with PUSCH duration of another uplink grant having a higher priority, if a corresponding MAC PDU (Media Access Control protocol data unit) is obtained, then instructing the identified HARQ process to trigger the new transmission of the MAC PDU.

Abstract: A communication method by a user equipment (UE) is described. The method includes receiving, from a base station, system information including a first RRC parameter, wherein the first RRC parameter provides a cell-specific physical uplink control channel (PUCCH) resource set and the cell-specific PUCCH resource set includes one or more PUCCH resources; and receiving a PDCCH with a DCI format scheduling a PDSCH; and performing, on a PUCCH resource of the cell-specific PUCCH resource set in an initial UL BWP, a PUCCH transmission with HARQ-ACK information in response to the PDSCH received, wherein whether a PRB index of the PUCCH transmission is determined based on a size of the initial UL BWP or not based on a size of the initial UL BWP is determined based on a second RRC parameter.

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: A user equipment (UE) is described.

Abstract: A terminal apparatus receives a PDCCH in a CORESET 0 and receives a SIB1 scheduled by the PDCCH, and specifies a frequency location and a bandwidth of an initial downlink BWP, wherein the SIB1 includes first information indicating a first frequency location and a first bandwidth, and second information, and the second information is used to determine a timing at which the first frequency location and the first bandwidth are used as the frequency location and the bandwidth of the initial downlink BWP.

Abstract: A method by a user equipment (UE) is described. The method includes receiving, from a base station, a first radio resource control (RRC) parameter with a first information element structure to define how and where to search for PDCCH candidates of a search space set, receiving a second RRC parameter with a second information element structure to define how and where to search for PDCCH candidates of a search space set, and a search space set corresponds to two types of search space set, wherein the first information element structure is capable of indicating of which one of the two types the search space set is, the second information element structure is only capable of indicating one fixed type.

Abstract: Provided is a terminal apparatus, wherein based on detection of a request, for a PDCP SDU received from an upper layer, the terminal apparatus performs header compression of the PDCP SDU by using second header compression processing, performing ciphering by using a second ciphering algorithm, a second ciphering key, and a COUNT value, performs integrity protection of the PDCP SDU by using a second integrity protection algorithm, a second integrity protection key, and the COUNT value, and submits a PDCP PDU created, to the second RLC entity.

Abstract: An aerial display device of an embodiment includes a planar light-emitting body, a retroreflective sheet, and a half mirror. The planar light-emitting body includes a light-emitting portion. The retroreflective sheet is disposed at an emission surface side of the planar light-emitting body, and includes, at a position corresponding to the light-emitting portion, a plurality of through-holes representing a figure to be displayed in the air. The half mirror is disposed at an emission surface side of the retroreflective sheet.

Abstract: Provided in the present invention are a method performed by user equipment and user equipment. The method comprises the following steps: remote UE initiating an RRC connection resume process, and determining whether there is a PC5 RLC entity for SRB1; and if there is no PC5 RLC entity for SRB1, the remote UE establishing a PC5 RLC entity for SRB1; or, if there is a PC5 RLC entity for SRB1, the remote UE re-establishing the PC5 RLC entity, and further determining whether the re-established PC5 RLC entity corresponds to a current serving relay UE, or corresponds to a destination address targeting the current serving relay, wherein, if no correspondence is found, the remote UE associates the re-established PC5 RLC entity with the current serving relay UE, or associates same with the destination address targeting the current serving relay.

Abstract: The present disclosure provides a method used in a base station, comprising: sending indication information to user equipment (UE), the indication information indicating a correspondence between multiple logical channels or bearers and multiple scheduling request (SR) configurations, wherein each logical channel or bearer is associated with a subcarrier spacing (SCS) and/or transmission time interval (TTI).

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 applies a configuration of an RRC reconfiguration message to a second configuration which is identical to a part or entirety of a first configuration in a case that the RRC reconfiguration message includes first information, and applies the configuration of the RRC reconfiguration message to the first configuration in a case that the RRC reconfiguration message includes no first information.

Abstract: A terminal apparatus includes a receiver configured to receive a first radio resource control (RRC) parameter for configuring one of a first repetition transmission type and a second repetition transmission type, and a transmitter configured to transmit, on a PUSCH, a transport block scheduled by a DCI format. The transmitter performs, by applying the repetition transmission type configured for the first RRC parameter, a repetition transmission of the transport block.

Abstract: A terminal apparatus for communicating with a base station apparatus includes a receiver configured to receive, from the base station apparatus, a Radio Resource Control (RRC) message indicating handover from NR to a second Radio Access Technology (RAT), and a processing unit configured to perform the handover in accordance with the RRC message. The processing unit releases a Packet Data Convergence Protocol (PDCP) entity and a Service Data Adaptation Protocol (SDAP) entity related to a radio bearer for a Multicast Broadcast Service (MBS) configured for the terminal apparatus, based at least on that the handover has completed, and in a case that the handover fails, the processing unit does not release the PDCP entity and the SDAP entity related to the radio bearer for the MBS configured for the terminal apparatus.

Abstract: A terminal apparatus for communicating with a base station apparatus includes a receiver configured to receive a Radio Resource Control (RRC) release message from the base station apparatus, and a processing unit. The processing unit establishes a radio bearer for a Multicast Broadcast service (MBS) for delivery mode 1. The processing unit determines whether or not a suspend configuration parameter is included in the RRC release message, and in a case that the processing unit determines that the suspend configuration parameter is included, the processing unit suspends the radio bearer for the MBS for the delivery mode 1, and in a case that the processing unit determines that the suspend configuration parameter is not included, the processing unit does not suspend the radio bearer for the MBS for the delivery mode 1. The suspend configuration parameter is a parameter indicating a configuration for an RRC_INACTIVE state.

Abstract: A first terminal apparatus for performing sidelink communication receives a first message from a second terminal apparatus, determines information based on a Reference Signal Received Power (RSRP) of the first message received from the second terminal apparatus, and transmits a second message including the information to a third terminal apparatus, wherein the first message and the second message are messages used to select a terminal apparatus being responsible to forward a sidelink transmission of the second terminal apparatus to the third terminal apparatus.