Abstract: There are provided a terminal device, a base station device, and an integrated circuit that enable a base station device and a terminal device to determine parameters related to uplink signals or uplink reference signals and to perform efficient communication.

Abstract: A wireless communication system to which carrier aggregation is applied performs effective traffic adaptation. In a terminal device which communicates with a base station device using two serving cells including one primary cell and one secondary cell, in a case that a UL-DL configuration for the primary cell is different from a first downlink reference UL-DL configuration for the secondary cell and the serving cell is the secondary cell, a second downlink reference UL-DL configuration for the serving cell is set on the basis of a pair which is formed by the UL-DL configuration for the primary cell and the first downlink reference UL-DL configuration for the serving cell.

Abstract: A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a radio resource control (RRC) message comprising a first parameter(s) used for configuring a first allocation table and a second allocation table. Each of the first allocation table and the second allocation table are used for defining a time domain allocation for a physical uplink shared channel (PUSCH) transmission. The receiving circuitry is also configured to detect in a UE specific search space, a downlink control information (DCI) format comprising first information used for indicating a row index to the first allocation table or the second allocation table. The DCI format is used for scheduling of the PUSCH. The UE also includes transmitting circuitry configured to perform, based on a detection of the DCI format, the PUSCH transmission based on either of the first allocation table or the second allocation table.

Abstract: In order to perform efficient communications. A terminal apparatus includes a higher layer processing unit configured to configure a subcarrier spacing of a physical channel, based on a first parameter, and a transmission unit configured to perform an uplink transmission by using the physical channel. In a case that transmissions on a first physical channel configured with a first subcarrier spacing and a second physical channel configured with a second subcarrier spacing occur in one serving cell, and that the second subcarrier spacing is wider than the first subcarrier spacing, the transmission unit allocates a transmit power on a priority basis to the second physical channel.

Abstract: The present invention includes: a receiver configured to receive a physical downlink control channel for conveying downlink control information including a first information field; and a transmitter configured to report channel state information (CSI), wherein the first information field indicates first information, the first information indicates one of multiple states, each of the multiple states is configured for a serving cell, and is associated with: one or more CSI report configurations; one or more reference signal configurations for CSI measurement; and a bandwidth part (BWP) index for the serving cell, and in a case that CSI reports of BWPs in a plurality of the serving cells are triggered, a CSI report of the CSI reports for only a BWP indicated by the BWP index that is activated is transmitted.

Abstract: The present invention includes a receiver configured to receive a physical downlink control channel, and a transmitter configured to transmit a physical uplink control channel, wherein the receiver receives downlink control information carried on the physical downlink control channel, a downlink control information format of the downlink control information is used for scheduling of a physical downlink shared channel, the downlink control information format includes information indicating a resource of a sounding reference signal, and the physical uplink control channel is transmitted, based on the information indicating the resource of the sounding reference signal.

Abstract: There are provided a terminal device, a base station device, and an integrated circuit that enable a base station device and a terminal device to determine parameters related to uplink signals or uplink reference signals and to perform efficient communication.

Abstract: In order to perform efficient communications. A terminal apparatus includes a higher layer processing unit configured to configure a subcarrier spacing of a physical channel, based on a first parameter, and a transmission unit configured to perform an uplink transmission by using the physical channel. In a case that transmissions on a first physical channel configured with a first subcarrier spacing and a second physical channel configured with a second subcarrier spacing occur in one serving cell, and that the second subcarrier spacing is wider than the first subcarrier spacing, the transmission unit allocates a transmit power on a priority basis to the second physical channel.

Abstract: The present invention includes a receiver configured to receive first information, the first information including information for configuring whether transform precoding for a physical uplink shared channel is enabled, and a transmitter configured to transmit information indicating a first power headroom level for the physical uplink shared channel with the transform precoding enabled and information indicating a second power headroom level for the physical uplink shared channel with the transform precoding not enabled.

Abstract: A first UL-DL configuration configured by using a common RRC message is set; an antenna port for one enhanced physical downlink control channel in a subframe is set based on whether or not the subframe is a predetermined special subframe in the first UL-DL configuration; and in a case where a second UL-DL configuration indicated by downlink control information which is transmitted on a physical downlink control channel is set, an antenna port for one enhanced physical downlink control channel in the subframe is set based on whether or not the subframe is the predetermined special subframe in the second UL-DL configuration.

Abstract: The present invention allows for an efficient communication between a terminal apparatus and a base station apparatus. The terminal apparatus generates and transmits a reference signal associated with a transmission of a Narrow Band Physical Uplink Shared Channel (NPUSCH) in a subframe. A plurality of first subcarriers include a plurality of second subcarriers and a plurality of third subcarriers, and a plurality of fourth subcarriers include a plurality of fifth subcarriers and a plurality of sixth subcarriers. In a case that the NPUSCH is mapped to the plurality of second subcarriers or the plurality of third subcarriers, the reference signal is mapped to the plurality of first subcarriers, and in a case that the NPUSCH is mapped to the plurality of fifth subcarriers or the plurality of sixth subcarriers, the reference signal is mapped to the plurality of fourth subcarriers.

Abstract: A terminal device is provided such that in a case that closed-loop UE transmit antenna selection is configured, a bit sequence is given by scrambling CRC parity bits with an RNTI and an antenna selection mask, in a case that the number of the CRC parity bits is a first value, a first transmit antenna port is given by a first antenna selection mask, and in a case that the number of the CRC parity bits is a second value, the first transmit antenna port is given by a second antenna selection mask that is different from the first antenna selection mask.

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: Provided is a terminal device that receives RRC layer information indicating an asynchronous HARQ for a secondary cell, and a first random access response, which is a random access response including fields for indicating an uplink grant and a Temporary C-RNTI and is related to a non-contention based random access procedure on the secondary cell, that manages multiple HARQ processes, and that delivers the uplink grant to an HARQ process that instructs the transmission unit to transmit the MAC layer data in accordance with the uplink grant. In a case that the RRC layer information indicating the asynchronous HARQ is configured, a HARQ process in which the uplink grant included in the first random access response is delivered is determined based on the value of a field for indicating the Temporary C-RNTI included in the first random access response.

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 device and a base station device can efficiently communicate with each other by using a downlink channel. The terminal device monitors, in an EPDCCH-PRB-set p in a subframe k, a first set ESk(L) of first EPDCCH candidates and a second set ESk(L) of second EPDCCH candidates. A first number Mp,c(L) of the first EPDCCH candidates is determined according to a first ?p,c and Mp(L), and a second number Mp,c(L) of the second EPDCCH candidates is determined according to a second ?p,c and Mp(L). First ECCE(s) corresponding to an mth first EPDCCH candidate included in the first set ESk(L) and second ECCE(s) corresponding to an mth second EPDCCH candidate included in the second set are determined according to a first value. The first value is given by a following expression, where NECCE,p,k is a total number of ECCEs included in the EPDCCH-PRB-set p in the subframe k.

Abstract: Aspects of the disclosure relate to a terminal device including a reception unit configured to receive a first set of information used for permitting simultaneous transmission of a CSI and a HARQ-ACK using PUCCH format (3), and receive a second set of information used for permitting simultaneous transmission of a CSI and a HARQ-ACK using PUCCH format (4). The terminal device may also include a transmission unit for transmitting a HARQ-ACK and/or a CSI. Based at least on whether the first set of information, the second set of information, and the HARQ-ACK correspond to a PDSCH transmission on a secondary cell with a cell index less than or equal to a first predetermined value or whether the HARQ-ACK corresponds to a PDSCH transmission on a secondary cell with a cell index greater than the first predetermined value, processing operations related to HARQ-ACK and/or CSI transmission may be executed.

Abstract: Aspects of the disclosure relate to a terminal device including a transmission unit configured to transmit a HARQ-ACK using a first PUCCH resource and a PUCCH format (3) with respect to PDSCH transmission on a secondary cell having a cell index less than or equal to a first predetermined value, and transmit a HARQ-ACK by using a second PUCCH resource and a PUCCH format (4) with respect to PDSCH transmission on a secondary cell having a cell index greater than the first predetermined value. The first predetermined value may be the value of a fourth cell index when arranging the values of the cell indices set by a base station device in ascending order.

Abstract: A method by a user equipment (UE) is described. The method includes receiving a first physical signal, determining a first physical structure based on information in the first physical signal, and determining resource elements based on the first physical structure. A first set of subcarriers with first subcarrier spacing which is integer multiple or integer sub-multiple of second subcarrier spacing are mapped such that in addition to a slot boundary one or more of starting positions or ending positions of first subcarriers with the first subcarrier spacing in a first set of OFDM symbols are aligned with one or more of starting positions or ending positions of second subcarriers with the second subcarrier spacing in a second set of OFDM symbols.

Abstract: A terminal apparatus includes a receiver receiving first system information broadcasted using a first subcarrier spacing, acquiring information of a second subcarrier spacing included in the first system information, receiving second system information broadcasted using the second subcarrier spacing, acquiring a parameter included in the second system information and needed for random access processing, and acquiring information of an uplink subcarrier spacing included in the second system information, and a transmitter transmitting a random access preamble based on the parameter needed for the random access processing.