Abstract: A communication method for a terminal apparatus includes receiving a higher layer configuration including an aggregation transmission parameter and parameters to be applied to transmit power control, and in a case that the aggregation transmission parameter is configured, repeatedly transmitting a transport block N times in N slots. A value for the number N is included in the aggregation transmission parameter, one or multiple path loss reference reference signal parameters are included in the parameters to be applied to the transmit power control, and a downlink path loss estimation corresponding to nth transmission of the N repeated transmissions is calculated by using a path loss reference reference signal identified by the one or multiple path loss reference reference signal parameters, to perform transmit power control for the nth transmission.

Abstract: A communication method for a terminal apparatus includes receiving a higher layer configuration including a parameter for a sounding reference signal and a parameter to be applied to transmit power control; transmitting the sounding reference signal, one or multiple parameters for one or multiple path loss reference reference signals being included in the parameter to be applied to the transmit power control, at least one of a sounding reference signal resource set ID and a sounding reference signal resource ID being included in the parameter for the sounding reference signal; specifying a first path loss reference reference signal by using a sounding reference signal resource set ID; and calculating a downlink path loss estimation by using the first path loss reference reference signal and performing the transmit power control on the sounding reference signal by using the downlink path loss estimation.

Abstract: The present disclosure provides a wireless communication method, a transmission/reception point, a user equipment and a wireless communication system, the wireless communication method comprising a step of: receiving the UL/DL configuration for the UE in a common search space of a specific time/frequency resource associated with a specific TP/RP, wherein, the UE is attached to the specific TP/RP, and the association between a number index of the specific TP/RP and an index of the specific time/frequency resource is predefined.

Abstract: To efficiently transmit a sounding reference signal. One or more downlink BWPs are configured in a serving cell, one or more uplink BWPs are configured in a serving cell, each BWP of the one or more downlink BWPs is identified by a downlink BWP index, each BWP of the one or more uplink BWPs is identified by the uplink BWP index, and in a case that one of the one or more downlink BWPs configured is activated in a serving cell, one of the one or more uplink BWPs configured is activated in a serving cell, and an SRS transmission in one or more serving cells of a plurality of the serving cells is triggered, the SRS for the BWP indicated by the uplink BWP index activated in the serving cell activated is transmitted.

Abstract: Provided is a communication method for a terminal apparatus, the communication method including receiving a higher layer configuration including an aggregation transmission parameter, a parameter to be applied to transmit power control, and a parameter for spatial relation information to be applied to PUSCH transmission, and in a case that the aggregation transmission parameter is configured, repeatedly transmitting a transport block N times in N slots.

Abstract: A base station selects, from among a plurality of code sequences orthogonal to one another, one code sequence by which an uplink signal including a demodulation reference signal repeated in a plurality of subframes is multiplied and transmits, to a terminal for which transmission of the repeated uplink signal is configured, information indicating the selected code sequence by using a field for indicating a cyclic shift and an orthogonal sequence used for the demodulation reference signal. A terminal receives information indicating one of a plurality of code sequences orthogonal to one another using a field for indicating a cyclic shift and an orthogonal sequence used for a demodulation reference signal and multiplies an uplink signal including the demodulation reference signal repeated in a plurality of subframes by the code sequence indicated by the information.

Abstract: A terminal apparatus and a base station apparatus can perform communication efficiently. The terminal apparatus comprises a reception unit configured to: receive Downlink Control Information (DCI) that schedules a Transport Block (TB) on a first Physical Uplink Shared Channel (PUSCH); a control unit configured to: calculate Resource Elements (REs) based on a first number of symbols; and determine a transport block size of the TB for the first PUSCH based on at least the calculated REs; and a transmission unit configured to: transmit the TB on the first PUSCH with a second number of symbols. The first number of symbols is provided in a first field in the DCI, and the second number of symbols is based on the first number of symbols and a number of unavailable symbols.

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: 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: Provided are a resource scheduling method, a resource determining method, an eNB, and a user equipment. The resource scheduling method for wireless communication is performed by the eNB. The wireless communication involves at least a first carrier and a second carrier. The resource scheduling method includes: transmitting a DCI in the first carrier to a UE to schedule downlink resources for a PDSCH of the second carrier, wherein the eNB is able to start transmitting a burst in the second carrier at a flexible time independent of the subframe boundaries of the second carrier after the second carrier is occupied by the eNB, and the DCI for a flexible PDSCH of the burst different from the normal PDSCH of the second carrier contains information on the time period scheduled for the flexible PDSCH. The flexible PDSCH and its corresponding RS can reuse the DwPTS subframe structure for minimal specification impact.

Abstract: A terminal apparatus is provided. The terminal apparatus includes: a reception unit configured to receive (i) a radio resource control (RRC) message including first configuration information and (ii) downlink control information including a first field via a physical downlink control channel (PDCCH); and a transmission unit configured to perform one or more repetitive transmissions of a physical uplink shared channel (PUSCH) based on the first configuration information and the first field. The first configuration information is for configuring at least one of a starting symbol of a time resource corresponding to an index indicated by the first field, a number of symbols allocated to one PUSCH corresponding to the index, and a nominal number of repetitive transmissions corresponding to the index.

Abstract: The present disclosure provides a band usage information generating and reporting method, a charging method, an eNB, a CN, a MME and a UE. The eNB and the UE can generate band usage information for charging, and report the band usage information to the CN, wherein the band usage information involves band usage of at least a first band and a second band, and traffic is assigned to respective bands by the eNB. The Counting entity at the eNB or UE can count the data volume of each band or ratio of data volume via different bands as the band usage information based on the scheduling information of the data. The Charging system located in the CN can process the charging and generate a bill according to the reported band usage information.

Abstract: A terminal apparatus and a base station apparatus can efficiently perform communication. In a radio communication system, an object is to efficiently provide, by a base station apparatus and a terminal apparatus, a terminal apparatus, a base station apparatus, a communication method, and an integrated circuit. Included in the terminal apparatus are a transmitter configured to transmit a sounding reference signal and a receiver configured to receive a higher layer configuration applied to transmit power control. A configuration is made from a higher layer to estimate downlink path loss used for the transmit power control applied to the transmission of the sounding reference signal by using a downlink reference signal of an activated BWP. In a case that a specific reference signal is not configured for the downlink reference signal, a reference signal of a synchronization signal block identified through a random access procedure is applied.

Abstract: A reception processor receives the cell detection reference signals, each of the cell detection reference signals being transmitted from corresponding one of a plurality of cells. An RRM report generator generates measurement information indicating a measurement result of reception quality measured using the cell detection reference signal. A transmission processor transmits the measurement information. The cell detection reference signals are mapped to any one of a plurality of candidate resources, which is a part of a plurality of resources set for other reference signals in a subframe to which the cell detection reference signals are mapped.

Abstract: Abase station is disclosed that enables an efficient use of resources even when a TTI length is shortened. In this base station, a PDCCH section (103) generates one piece of downlink control information (DCI) containing control information for a plurality of first transmission time intervals (TTIs) each having a TTI length shorter than a second TTI, and a transmission section (107) transmits the DCI. Control information on retransmission processing for a data signal is configured for each of the plurality of first TTIs while control information other than the control information on the retransmission processing is configured in common among the plurality of first TTIs in the DCI.

Abstract: The present invention relates to reporting the channel state information in a communication system. The channel state information is reported from the user terminal to a base station. Accordingly, the user terminal determines a first channel state information value from a first set of values (levels) and a second channel state information value from another set of values, preferably a larger set of values. Then a difference or other relative measure is calculated between the first and the second channel state information value and transmitted to the base station.

Abstract: A base station selects, from among a plurality of code sequences orthogonal to one another, one code sequence by which an uplink signal including a demodulation reference signal repeated in a plurality of subframes is multiplied and transmits, to a terminal for which transmission of the repeated uplink signal is configured, information indicating the selected code sequence by using a field for indicating a cyclic shift and an orthogonal sequence used for the demodulation reference signal. A terminal receives information indicating one of a plurality of code sequences orthogonal to one another using a field for indicating a cyclic shift and an orthogonal sequence used for a demodulation reference signal and multiplies an uplink signal including the demodulation reference signal repeated in a plurality of subframes by the code sequence indicated by the information.

Abstract: Provided are D2D communication methods and D2D-enabled wireless devices. The D2D communication method performed by a D2D-enabled wireless device includes transmitting signals in D2D subframes with a randomization pattern. The randomization pattern is designed based on relative subframe positions in a virtual pure D2D subframe sequence composed of multiple D2D subframes in one or more radio frames. In another embodiment, the eNB scheduling based resource allocation and the D2D-enabled wireless device selection on its own based resource allocation share a same randomization pattern design.

Abstract: A terminal apparatus includes a receiver and a transmitter. The receiver is configured to receive a radio resource control (RRC) parameter and a physical downlink control channel (PDCCH) including a downlink control information (DCI) format and scheduling a physical uplink shared channel (PUSCH). The transmitter is configured to transmit the PUSCH with frequency hopping within one slot. The RRC parameter indicates one or a plurality of frequency offset values. The PUSCH includes a first frequency hop and a second frequency hop within the one slot. In a case that a cyclic redundancy check (CRC) scrambled with or other than a temporary cell-radio network temporary identifier (TC-RNTI) is added to the DCI format, a frequency offset between the first frequency hop and the second frequency hop is based on a size of an initial uplink (UL) bandwidth part (BWP) or the RRC parameter, respectively.

Abstract: A terminal apparatus includes: a reception unit which receives, from a base station apparatus, a physical downlink control channel including downlink control information in a search space specific to the terminal apparatus; and a control unit which determines the number of bits of a time domain resource allocation field in the downlink control information. The time domain resource allocation field is a time domain resource allocation field for a physical downlink shared channel A default table indicates a time domain resource allocation configuration for the physical downlink shared channel. When a parameter is not received, the number of bits of the time domain resource allocation field is determined based on the number of the in the default table.