Abstract: A user equipment (UE) is described. The UE includes a processor and memory in electronic communication with the processor. The UE configures shortened transmission time interval (sTTI) for downlink in a serving cell. The UE also determines a downlink (DL) association set for an uplink subframe. The UE further determines a shortened physical uplink control channel (SPUCCH) format or a PUCCH format used in the uplink subframe, on the basis of at least the number of downlink sTTI(s) within the DL association set.

Abstract: Provided is a terminal communicating with a base station, in which in a case where a physical downlink control channel is monitored in a first physical downlink control channel-physical resource block set, the physical downlink control channel is decoded in such a manner that the physical downlink control channel is rate-matched based on a prescribed reference signal, and in which, in a case where the physical downlink control channel is monitored in a second physical downlink control channel-physical resource block set, the physical downlink control channel is decoded in such a manner that the physical downlink control channel is rate-matched based on a reference signal that is set individually for each terminal.

Abstract: A UE is described. The UE may include a higher layer processor configured to acquire a common dedicated radio resource control (RRC) configuration message and one or more dedicated RRC configuration messages. The common RRC message may include first information for indicating a slot format. The one or more dedicated RRC configuration messages including second information for configuring a semi-static downlink transmission and third information for configuring a semi-static uplink transmission. The UE may also include receiving circuitry configured to receive the semi-static downlink transmission. The UE may further include transmitting circuitry configured to transmit the semi-static uplink transmission. If the semi-static downlink reception and the semi-static uplink transmission are configured for a same set of symbol(s), the slot format indicates the set of symbol(s) as either downlink or uplink but not as flexible.

Abstract: A user equipment (UE) is described. The UE includes transmitting circuitry configured to transmit hybrid automatic repeat request acknowledgment/negative acknowledgement (HARQ-ACK) and scheduling request (SR) on a physical uplink control channel (PUCCH) scheduled for the HARQ-ACK transmission. The HARQ-ACK and the SR are transmitted on the PUCCH by applying a cyclic shift on sequences of symbols carrying uplink control information (UCI) bits.

Abstract: A user equipment (UE) is described. The UE includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to receive a higher layer signalling to configure the UE with a code block group (CBG). The instructions are also executable to receive one or more downlink (DL) transmissions. Hybrid automatic repeat request acknowledgement (HARQ-ACK) of the one or more DL transmissions are multiplexed and reported in a single uplink (UL) reporting. The instructions are also executable to generate a HARQ-ACK codebook comprises a first HARQ-ACK sub-codebook and a second HARQ-ACK sub-codebook.

Abstract: The present invention enables efficient transmission/reception of a signal including control information between a base station apparatus and a mobile station apparatus. To realize this, there are provided a receiver configured to receive an enhanced physical downlink control channel from the base station apparatus; a setting unit configured to be able to set, using at least a format of downlink control information included in the received enhanced physical downlink control channel, one of a plurality of possible sets of M, M being the number of first elements that constitute the enhanced physical downlink control channel; and a monitoring unit configured to monitor a search region in which the enhanced physical downlink control channel obtained on the basis of the set possible set of M is possibly mapped.

Abstract: A user equipment (UE) is described. The UE includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to acquire a first higher layer configuration indicating multiple sets of physical uplink control channel (PUCCH) resources, the multiple sets of PUCCH resources including at least a short PUCCH resource. The instructions are also executable to select a PUCCH resource from the sets of PUCCH resources. The instructions are further executable to transmit uplink control information (UCI) on the selected PUCCH resource.

Abstract: There is provided a terminal device that communicates with a base station apparatus. The device includes: a higher layer processing unit that configures a discovery signal which includes cell-specific reference signals present in DwPTSs of all downlink subframes and all special subframes, a first synchronization signal present in a prescribed subframe, a second synchronization signal present in a first subframe, and one or more non-zero power CSI reference signals during a period of continuous subframes in a predetermined cell; and a reception unit that receives the discovery signal. A subframe offset between the second synchronization signal and the non-zero power CSI reference signal is independently configured for each of the non-zero power CSI reference signals.

Abstract: There are provided a base station, a terminal, and a communication system in a wireless communication system in which a base station and a terminal communicate with each other, in which the base station and the terminal can efficiently perform communication. The communication system includes a higher layer processing unit 605 configured to configure, at the base station, for each terminal, a first reference signal configuration for configuring a measurement target for channel state reporting, configured to configure, at the base station, for each terminal, a second reference signal configuration specifying a resource element to be excluded from the target of data demodulation in a case where the terminal demodulates data, and configured to configure, at the base station, for each terminal, a third reference signal configuration for configuring a measurement target for which a reference signal received power is to be measured by the terminal.

Abstract: A user equipment (UE) is described. The UE comprises a higher layer processor configured to acquire a dedicated radio resource control (RRC) configuration for a downlink slot aggregation, physical downlink control channel (PDCCH) receiving circuitry configured to monitor a PDCCH carrying a downlink control information (DCI) format for scheduling a physical downlink shared channel (PDSCH), and PDSCH receiving circuitry configured to receive the PDSCH. When the PDCCH is with a first radio network temporary identifier (RNTI), the downlink slot aggregation applies to the PDSCH. When the PDCCH is with a second RNTI, the downlink slot aggregation does not apply to the PDSCH.

Abstract: A node of a radio access network comprises processor circuitry (30) and transmitter circuitry (34). The processor circuitry (30) generates a synchronization signal block comprising a Physical Broadcast Channel (PBCH) and a demodulation reference signal for the Physical Broadcast Channel (PBCH) from which demodulation reference signal a parameter of the radio access network can be determined. The transmitter circuitry transmits the synchronization signal block and the demodulation reference signal over a radio interface (24).

Abstract: A user equipment (UE) is described. The UE includes receiving circuitry. The receiving circuitry is configured to receive a Radio Resource Control (RRC) message including first information configuring code block group (CBG) based (re)transmission and a maximum number of CBGs. The receiving circuitry may also be configured to receive a Radio Resource Control (RRC) message including second information configuring HARQ-ACK bundling for the CBGs within a TB and a number of bundled HARQ-ACK information bits per TB.

Abstract: A user terminal includes a measurement unit that performs measurement for calculating channel state information, a configuration unit that configures two subframe sets including a first subframe set and a second subframe set based on first information and second information, a transmission unit that transmits channel state information reports corresponding to the first subframe set and channel state information reports corresponding to the second subframe set. In a case where the second information is configured, the first information is not configured, and in a case where a plurality of channel state information reports of the same serving cell collides for a user terminal for which the two subframe sets are configured based on the second information, and in a case where the plurality of channel state information reports has physical uplink control channel reporting types having the same priority, the channel state information reports corresponding to the second subframe set are dropped.

Abstract: There are provided a base station, a terminal, and a communication system in a wireless communication system in which a base station and a terminal communicate with each other, in which the base station and the terminal can efficiently perform communication. The communication system includes a higher layer processing unit 605 configured to configure, at the base station, for each terminal, a first reference signal configuration for configuring a measurement target for channel state reporting, configured to configure, at the base station, for each terminal, a second reference signal configuration specifying a resource element to be excluded from the target of data demodulation in a case where the terminal demodulates data, and configured to configure, at the base station, for each terminal, a third reference signal configuration for configuring a measurement target for which a reference signal received power is to be measured by the terminal.

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: A search space of a control channel which is monitored by a terminal is determined based on a first uplink-downlink configuration specific to a base station, a second uplink-downlink configuration specific to a terminal, and one or more EPDCCH subframe configuration, for each subframe. A scrambling sequence parameter which corresponds to the search space of the control channel and is used in scrambling of the control channel is switched. The terminal switches the scrambling sequence parameter, corresponding to the search space and a subframe configuration, and the terminal receives a DMRS and descrambles an EPDCCH by using the switched scrambling sequence parameter.

Abstract: A user equipment (UE) is described. The UE includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to determine a physical uplink control channel (PUCCH) resource and a PUCCH format. The instructions are also executable to transmit uplink control information (UCI) on the PUCCH resource using the PUCCH format. If the PUCCH format is a 2-symbol short PUCCH, 1-symbol PUCCH structure is used in each symbol, and if the UCI is up to 2 bits, the UCI is repeated in two symbols using repetition of a 1-symbol PUCCH. If the PUCCH format is a 2-symbol short PUCCH, and if the UCI is more than 2 bits, the UCI is jointly encoded, and the encoded UCI bits are distributed across two symbols.

Abstract: There is provided a terminal device that communicates with a base station apparatus. The device includes: a higher layer processing unit that configures a discovery signal which includes cell-specific reference signals present in DwPTSs of all downlink subframes and all special subframes, a first synchronization signal present in a prescribed subframe, a second synchronization signal present in a first subframe, and one or more non-zero power CSI reference signals during a period of continuous subframes in a predetermined cell; and a reception unit that receives the discovery signal. A subframe offset between the second synchronization signal and the non-zero power CSI reference signal is independently configured for each of the non-zero power CSI reference signals.

Abstract: A method for reporting uplink control information (UCI) by a user equipment (UE) is disclosed. The method includes storing information on whether a simultaneous physical uplink control channel (PUCCH) and physical uplink shared channel (PUSCH) transmission is supported. The method also includes, when the simultaneous PUCCH and PUSCH transmission is not supported and in case of a channel collision between a PUCCH and a PUSCH, transmitting, by the UE, the UCI using the PUCCH in an overlapping portion between the PUCCH and the PUSCH, and dropping the overlapping portion of the PUSCH.

Abstract: A user equipment (UE) is described. The UE is configured to determine a duplex method of a serving cell. The UE is also configured to determine that shortened transmission time interval (sTTI) is configured on at least one of one or more downlink subframes or one or more uplink subframes. The UE is further configured to determine a sTTI downlink size and a sTTi uplink size. The UE is additionally configured to determine an association timing reference sTTI size based on the sTTI downlink size and the sTTI uplink size. The UE is also configured to determine a sTTI PDSCH HARQ-ACK transmission timing for the serving cell. The UE is further configured to determine a sTTI PUSCH scheduling timing for the serving cell. The UE is additionally configured to determine a sTTI PUSCH HARQ-ACK transmission timing for the serving cell.