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 uplink control channel (PUCCH) formats and configuration based on a signaling from a base station (gNB). The instructions are also executable to determine a control channel format and resource for uplink control information (UCI) feedback. The instructions are further executable to transmit UCI on a selected channel.

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 configuring a number of more than one code block groups (CBGs) in a transport block (TB). The receiving circuitry is also configured to receive the more than one CBGs, the more than one CBGs comprising first CBGs and second CBGs. The UE also includes processing circuitry configured to determine a number of code blocks (CBs) from the TB. A first number, a second number, a third number, and a fourth number are given based on the number of more than one CBGs and the number of CBs. The first number is a number of the first CBG(s). The second number is a number of CB(s) comprised of each of the first CBG(s). The third number is a number of the second CBG(s). The fourth number is a number of CB(s) comprised of each of the second CBG(s).

Abstract: It is possible to efficiently transmit and receive signals including control information between a base station apparatus and a mobile station apparatus. A control channel is constituted of one or more first elements. The mobile station apparatus sets a search space for performing decoding detection of the control channel within a control channel region in which each of the first elements is constituted of resources in one physical resource block, and a search space for performing decoding detection of the control channel within a control channel region in which each of the first elements is constituted of second elements in a plurality of different physical resource blocks. Each of the second elements is resources obtained by dividing one physical resource block. The mobile station apparatus performs decoding detection of the control channel using the first elements in the set search spaces.

Abstract: A communication system where a terminal apparatus (UE) communicates with a base station apparatus (BS) that configures a first cell. The UE acquires, from the BS, first information and second information, whereby the first information specifying a first number indicating a first subframe, the first subframe including a first resource element in which a first reference signal of the first cell is placed, the second information specifying a second number indicating a second subframe, the second subframe including a second resource element in which a second reference signal of a second cell other than the first cell is to be placed, and the second resource element being not used to transmit a signal of the first cell. The UE also demaps data, whereby, in the second subframe, the data is mapped on resource elements which do not include the second resource element.

Abstract: There is provided a terminal device which includes a transmission unit that transmits HARQ response information to a first serving cell and a second serving cell on a physical uplink shared channel in a subframe n. The physical uplink shared channel is transmitted based on a physical downlink control channel or an enhanced physical downlink control channel which is detected in a state of including a downlink control information format 0/4. Two or more serving cells are configured in the terminal device, in a case where frame constitution types of any two configured serving cells are different from each other, and in a case where a primary cell has Frame constitution type 2, BcDL is applied to the first serving cell of Frame constitution type 2 by using the following expression (1), and is applied to the second serving cell of Frame constitution type 1 by using the following expression (2). [Math. 1] BcDL=min(WDAIUL,Mc)??Expression (1) [Math.

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, second elements are formed using resources that are obtained by dividing one physical resource block pair, each of first elements is constituted by one or more of the second elements, a control channel is constituted by an aggregation of one or more of the first elements, and there is provided a controller that associates any one of the first elements with one or a plurality of the second elements.

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 includes receiving circuitry configured to receive a radio resource control message including first information used for configuring a number of repetitions and a periodicity, the number of the repetitions being for transmissions of a transport block (TB). The receiving circuitry receives a radio resource control message including second information used for configuring a monitoring occasion for a symbol. The receiving circuitry monitors a first physical downlink control channel (PDCCH) with cyclic redundancy check (CRC) scrambled by a cell radio network temporary identifier (C-RNTI). The receiving circuitry monitors a second PDCCH with CRC scrambled by a second RNTI different from the C-RNTI. The UE also includes transmitting circuitry configured to perform on a physical uplink shared channel (PUSCH), based on the first information, transmissions of the TB.

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: A user equipment comprises receiving circuitry configured to receive bit map information indicating time domain positions, within a measurement window, of synchronization signal block(s) (SSB(s)) used for an intra and/or an inter-frequency measurement, the SSB(s) comprising at least a primary synchronization signal (PPS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH), wherein the bitmap information comprises a bit string, and different lengths of the bit string are defined for different frequency bands.

Abstract: A terminal device that uses a first serving cell group including a primary cell has a higher layer control information acquisition unit that configures a second serving cell group not including the primary cell, a channel state information generation unit that calculates respective pieces of periodic channel state information of serving cells, an uplink control information generation unit that generates uplink control information by dropping reports of the periodic channel state information other than one thereof in a case where the reports of plural serving cells in the first serving cell group collide with each other in one subframe and by dropping the reports of the periodic channel state information other than one thereof in a case where the reports of plural serving cells in the second serving cell group collide with each other in one subframe, and an uplink control information transmission unit that transmits an uplink subframe including the uplink control information.

Abstract: A UE includes receiving circuitry that receives a radio resource control (RRC) message including information indicating a subcarrier spacing of a block comprising, at least, a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) and a physical broadcast channel (PBCH). The receiving circuitry also receives, based on the information, the block comprising, at least, the PSS and the SSS and the PBCH. The information is used only for a case where the UE is in a RRC connected. In a case that the information is not configured, the receiving circuitry receives, based on a default value of the subcarrier spacing, the block comprising, at least, the PSS and the SSS and the PBCH. The default value of the subcarrier spacing is given based on a frequency band.

Abstract: There is provided a terminal for performing OFDM (Orthogonal Frequency-Division Multiplexing) communication with a base station forming a cell. The terminal includes a control channel processing unit configured to monitor, in a sub-frame, a first control channel in a cell-specific search space that is a search space common within the cell, and a first control channel in a UE-specific search space that is a search space specific to the terminal. In a case where monitoring of a second control channel different from the first control channel that is in the cell-specific search space or the UE-specific search space is configured, the control channel processing unit monitors, in a sub-frame, at least both the first control channel in the cell-specific search space and the second control channel in the UE-specific search space.

Abstract: A user equipment (UE) is described. The UE includes a higher layer processor configured to acquire a dedicated radio resource control (RRC) message, the dedicated RRC message including information for indicating a configuration of a control resource set (CORESET). The UE also includes physical downlink control channel (PDCCH) receiving circuitry configured to monitor a PDCCH in the CORESET. The PDCCH includes one or more control channel elements (CCEs). Each of the one or more CCEs is mapped to 6 resource element groups (REGs). The CORESET includes N resource blocks, where N is a multiple of 6. A time duration of the CORESET is set to one of a divisor of 6. An REG bundling size is determined using the time duration of the CORESET.

Abstract: A terminal device includes a reception unit which performs first measurement when a predetermined cell is in a first state and second measurement when the predetermined cell is in a second state, and a higher layer processing unit which reports the first measurement or the second measurement to a base station device. Based on information indicating the first state/the second state of the predetermined cell, the first measurement and the second measurement are switched.

Abstract: A user equipment (UE) for transmitting signals in a Licensed-Assisted Access (LAA) serving cell is described. The UE includes a processor and memory in electronic communication with the processor. The UE receives an uplink (UL) grant for one or more UL LAA subframes from one or more downlink control information (DCI). The UE also determines a UL LAA physical uplink shared channel (PUSCH) format or structure for a UL LAA subframe. The UE further determines whether listen before talk (LBT) is needed for a scheduled LAA PUSCH. If needed, the UE determines a UL contention access region based on the UL grant for a UL LAA subframe. The UE also determines a UL contention access method in the contention access region. The UE further performs UL contention access in the UL contention access region. The UE additionally transmits the LAA PUSCH if channel access succeeds.

Abstract: Different precoding processes are used among different regions. A transmit processor uses resources in a region to transmit the control channel and the reference signal. A mobile station device includes a controller that sets a region on the basis of announced information from the base station device, a propagation channel estimator that averages propagation channel variation estimation values from a plurality of reference signals within the region, and a control channel detector that uses the averaged propagation channel estimation values to detect the control channel that includes control information addressed to the mobile station device.

Abstract: A base station apparatus transmits first information indicating a subframe in which a cell-specific reference signal (CRS) is present, and second information which indicates a subframe other than a subframe indicated as the subframe in which the CRS is present by the first information, as a multicast broadcast single frequency network (MBSFN) subframe, to a terminal apparatus. Accordingly, the base station apparatus can efficiently communicate with a terminal apparatus using a downlink physical channel.

Abstract: A user equipment (UE) for reporting uplink control information (UCI) when one or more Licensed-Assisted Access (LAA) serving cells are configured is described. The UE includes a processor and memory in electronic communication with the processor. Instructions stored in the memory are executable to determine if physical uplink shared channel (PUSCH) transmissions are scheduled on LAA serving cells and licensed cells. The instructions are also executable to determine a type of UCI to be reported. The instructions are further executable to determine a channel and cells to carry different UCI. The instructions are additionally executable to transmit the channel on the cells determined to carry UCI. The instructions are also executable to determine whether a LAA PUSCH is transmitted and UCI is multiplexed. The instructions are further executable to drop LAA PUSCH or transmit LAA PUSCH subject to listen-before-talk (LBT).

Abstract: There is provided a terminal device which communicates with a base station apparatus. The terminal device includes a reception unit that decodes a downlink control channel (PDCCH) or an enhanced downlink control channel (EPDCCH) including a downlink control information (DCI) format. A field of a downlink assignment index (DAI) is provided in the DCI format for a TDD operation, in a case of a time division duplex (TDD) primary cell. The field of the DAI is not provided in the DCI format for the TDD operation, in a case of a frequency division duplex (FDD) primary cell.