Abstract: A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a first offset value and a second offset value. The receiving circuitry is configured to receive a first physical downlink shared channel (PDSCH) and a second PDSCH. The receiving circuitry is configured to receive a downlink control information (DCI) format used for scheduling of a physical uplink shared channel (PUSCH). The UE also includes transmitting circuitry configured to transmit a first hybrid automatic repeat request (HARQ-ACK) for the first PDSCH and a second HARQ-ACK for the second PDSCH, the first HARQ-ACK and the second HARQ-ACK being multiplexed in the PUSCH. The number of resources for the first HARQ-ACK is determined based on the first offset value, and the number of resources for the second HARQ-ACK is determined based on the second offset value.

Abstract: A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a radio resource control (RRC) signal including information used for configuring the UE to monitor physical downlink control channel (PDCCH) candidates either for a downlink control information (DCI) format 0_1 and a DCI format 1_1 or a first DCI format and a second DCI format. The UE also includes transmitting circuitry configured to perform a transmission on a physical uplink shared channel (PUSCH). In a case that the PUSCH is scheduled by using the second DCI format, a first hybrid automatic repeat request-acknowledgment (HARQ-ACK) and a second HARQ-ACK are multiplexed on the PUSCH. The number of resources for the first HARQ-ACK and the number of resources for the second HARQ-ACK are respectively determined.

Abstract: A terminal device configured to perform D2D transmission by a higher layer includes: a reception unit receiving from a base station device one or a plurality of first parameters relating to transmit power and receiving a second parameter for configuring a first transmission resource from the base station device; and a transmission unit performing, upon receipt of the second parameter in an RRC idle state, the D2D transmission using the first transmission resource with the transmit power in accordance with a first parameter corresponding to an authorized range among the one or plurality of first parameters.

Abstract: A terminal apparatus including a reception unit that receives first information indicating a first uplink-downlink configuration and receives second information indicating a second uplink-downlink configuration and a transmission unit that performs transmission on a physical uplink shared channel based on an uplink grant only in a subframe indicated as an uplink subframe by the second information, in which in a case where an uplink grant related to semi-persistent scheduling is considered to occur in a subframe specified based on at least a value of an offset and when two-intervals-Semi-Persistent Scheduling for an uplink is validated, the value of the offset is set based on the first uplink-downlink configuration, and when the two-intervals-semi-persistent scheduling for the uplink is not validated, the value of the offset is set to 0. Accordingly, the terminal apparatus can perform transmission of uplink data efficiently.

Abstract: To optimize transmission periods corresponding to kinds of feedback information, and minimize a reduction in system throughput caused by disagreement of the transmission period with the optimal period, by setting transmission frequencies individually with flexibility corresponding to the kinds of feedback information for a mobile station apparatus to transmit to a base station apparatus, in a wireless communication system in which a mobile station apparatus B measures reception quality of a signal received from a base station apparatus A, and transmits feedback information generated based on the reception quality to the base station apparatus A, the base station apparatus A allocates resources of transmission timing corresponding to the kinds of feedback information, and the mobile station apparatus B transmits a plurality of kinds of feedback information to the base station apparatus using the allocated resources.

Abstract: Provided is a terminal apparatus configured to: receive, in a first PDCCH, a first uplink grant to which first CRC parity bits scrambled with a C-RNTI for a dynamically scheduled transmission is attached; receive, in a second PDCCH, a second uplink grant to which second CRC parity bits scrambled with SPS C-RNTI for a semi-persistently scheduled transmission is attached; perform multiple transmissions corresponding to a bundle, based on the first uplink grant or the second uplink grant; and determine a redundancy version corresponding to each of the multiple transmissions, excluding a first transmission of the multiple transmissions, based at least on whether the bundle is associated with the second uplink grant.

Abstract: A first UL-DL configuration configured by using a common RRC message is set; it is determined whether or not the number of enhanced control channel elements in one enhanced physical downlink control channel set in a subframe is set to 0 in a case where an index of an uplink control channel resource is determined, based on whether or not the subframe is a predetermined special subframe in the first UL-DL configuration; a second UL-DL configuration indicated by downlink control information which is transmitted on a physical downlink control channel is set; and in a case where the second UL-DL configuration is set, determination is performed based on whether or not the subframe is the predetermined special subframe in the second UL-DL configuration.

Abstract: A mobile station (MS) communicates with a base station (BS) by a carrier aggregation using a plurality of downlink component carriers (DCCs). The MS receives on one or more activated DCCs. The MS receives using a PDCCH on one of activated DCCs, from the BS, first information including an information field for requesting a transmission of channel state information (CSI), the first information being used for scheduling of a PUSCH. The MS transmits using the PUSCH in a first subframe on an uplink component carrier, to the BS, first CSI for more than one activated DCCs. The MS transmits using the PUSCH in a second subframe on the uplink component carrier, to the BS, second CSI for only one activated downlink component carrier. The transmission of the second CSI is scheduled by the first information received using the PDCCH on the only one activated downlink component carrier.

Abstract: A terminal device is configured to activate and deactivate, on the basis of a MAC control element, a serving cell other than a primary cell, when a resource for a physical uplink control channel for a scheduling request used for requesting a UL-SCH resource for an initial transmission is not configured in the serving cell other than the primary cell. When the resource for the physical uplink control channel for the scheduling request is configured in the serving cell other than the primary cell, the serving cell other than the primary cell is always activated.

Abstract: A mobile station device transmits a transport block in an uplink subframe. The mobile station device delivers acknowledgement (ACK) for the transport block to higher layers in a case that the transport block was transmitted by the mobile station device to a base station device and the transport block is disabled based on a physical downlink control channel received in a downlink subframe.

Abstract: A terminal device and a base station device efficiently communicate with each other. For the terminal device, in a case that third information is configured, a third maximum number of the layers assumed for determining a bit width for a first RI and a fourth maximum number of the layers assumed for determining a bit width for a second RI are provided, based on the third information. In case that the third information is not configured, the third maximum number and the fourth maximum number are provided, based on a smallest one of a first number and a second number. The first number is a second maximum number of the layers indicated by second information, and the second number is a largest one of the number of antenna ports of a first CSI-RS resource and the number of antenna ports of a second CSI-RS resource.

Abstract: A user equipment (UE) is described. The UE includes receiving circuitry configured to receive a radio resource control message including first information used for indicating a periodicity. The receiving circuitry is also configured to receive on a physical downlink control channel (PDCCH), downlink control information (DCI) with CRC scrambled by a first Radio Network Temporary Identifier (RNTI), the DCI including information indicating a time domain resource. The UE also includes transmitting circuitry configured to perform, based on the DCI with CRC scrambled by the first RNTI, a transmission on a physical uplink shared channel (PUSCH) in a symbol. The time domain resource includes an index of the symbol in which the transmission on the PUSCH is performed and a slot offset value. The index of the symbol in which the transmission on the PUSCH is performed is within a slot given by the first information and the slot offset value.

Abstract: Uplink data is transmitted efficiently. A terminal device configured to: in a case that a difference between an uplink transmission timing for a Timing Advance Group including a primary cell of a master cell group and an uplink transmission timing for a Secondary Timing Advance Group of a secondary cell group exceeds a maximum transmission timing difference, consider that a timer for the Secondary Timing Advance Group of the secondary cell group has expired and stop transmission on a physical uplink shared channel in the Secondary Timing Advance Group of the secondary cell group.

Abstract: To make a mobile station apparatus efficiently generate a base sequence. In a mobile station apparatus that generates a sequence for a demodulation reference signal on the basis of at least a sequence group number and transmits to a base station apparatus the demodulation reference signal together with a physical uplink shared channel used for transmission of a transport block, the mobile station apparatus receives information indicating a value of a parameter relating to the sequence from the base station apparatus, and determines the sequence group number without using the value of the parameter in a case where the mobile station apparatus performs transmission of the transport block on the physical uplink shared channel as part of a contention based random access procedure.

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: Provided is a coding unit to determine the number of code block groups, divide an input bit sequence to code block segmentation into code block groups of the number of the code block groups, determine the number of code blocks for each of the code block groups, divide each of the code block groups into code blocks of the number of the code blocks, and apply channel coding to each of the code blocks.

Abstract: Channel encoding is provided that includes applying turbo coding with a coding rate of 1/5 to an input bit sequence, applying a subblock interleaver to each of first to fifth code bit sequences to which the turbo coding is applied, applying bit collection to the first to fifth code bit sequences output from the subblock interleaver, the bit collection outputting the first code bit sequence in order, outputting the second code bit sequence and the fourth code bit sequence alternately on a bit-by-bit basis after the first code bit sequence, and outputting the second code bit sequence and the fifth code bit sequence alternately on a bit-by-bit basis.

Abstract: Uplink data is transmitted efficiently. A terminal device is configured to, in a case that a difference between an uplink transmission timing in a Primary Timing Advance Group of a master cell group and an uplink transmission timing in a Primary Secondary Timing Advance Group of a secondary cell group exceeds a maximum transmission timing difference, consider that a timer for the Primary Secondary Timing Advance Group of the secondary cell group has expired and clear a configured uplink grant.

Abstract: Processing relating to transmit power is efficiently performed. A terminal device includes a reception unit configured to receive a first parameter and a second parameter, and a first MAC processing unit configured to acquire a type 2 power headroom. The first MAC processing unit acquires a value of the type 2 power headroom for a primary cell, in a case that the first parameter is configured and that simultaneous transmissions on a Physical Uplink Control CHannel (PUCCH) and on a Physical Uplink Shared CHannel (PUSCH) are configured, and acquires a value of the type 2 power headroom for the primary cell, regardless of whether simultaneous transmissions on the Physical Uplink Control CHannel (PUCCH) and on the Physical Uplink Shared CHannel (PUSCH) are configured in a case that the second parameter is configured.

Abstract: A mobile station (MS) receive a higher layer signal including first information used for indicating a first downlink component carrier (DCC). MS transmits in a first subframe, HARQ control information using a first PUCCH and a first PUCCH format in a case that a first PDSCH transmission on a second DCC different from the first DCC is indicated by a detection of a first PDCCH in a second subframe. MS transmits in a third subframe, HARQ control information using a second PUCCH and a second PUCCH format in a case that a second PDSCH transmission only on the first DCC is indicated by a detection of a second PDCCH in a fourth subframe. First PUCCH format supports a number of information bits per subframe larger than a number of information bits per subframe supported by the second PUCCH format. First PUCCH format is used for transmitting HARQ control information with a scheduling request.