Abstract: A terminal apparatus and a communication method are provided. The terminal apparatus communicates with a base station apparatus. The terminal apparatus includes a receiver and a measurement unit. The receiver is configured to receive downlink signals and configuration information in a first component carrier and a second component carrier. The measurement unit is configured to calculate Channel State Information (CSI) of the first component carrier and the second component carrier. In a case that spatial Quasi-coloration (QCL) for reception parameters is configured between the first component carrier and the second component carrier in the configuration information, the CSI of the first component carrier and the CSI of the second component carrier are calculated with a same reception parameter.

Abstract: A base station apparatus according to the present invention includes a transmitter configured to transmit a downlink signal by using a first component carrier and a second component carrier, and a receiver configured to receive an uplink signal transmitted by the terminal apparatus by using at least the second component carrier. The transmitter transmits spatial relation information in the uplink signal, the spatial relation information is information indicating a spatial domain transmission filter for transmitting the uplink signal, and the spatial relation information in the second component carrier includes information indicating the first component carrier.

Abstract: A terminal apparatus according to an aspect of the present embodiment acquires multiple pieces of sounding reference signal (SRS) resource set configuration information indicating a configuration of multiple SRS resources, transmits an SRS and an uplink shared channel (PUSCH) based on the multiple SRS resources, acquires information (SRI) indicating one of the multiple SRS resources included in a piece of SRS resource set configuration information of the multiple pieces of SRS resource set configuration information, from control information (DCI) transmitted via a downlink control information channel (PDCCH), and acquires, from the DCI, information indicating whether only one of the multiple pieces of SRS resource set configuration information is associated with the PUSCH.

Abstract: In a case in which a plurality of mobile station apparatuses to which a plurality of sub-devices are connected through Ethernet (registered trade name) are connected to a base station apparatus, efficient communication needs to be performed through an appropriate routing process. A base station apparatus of a communication system including at least the base station apparatus and a mobile station apparatus, the base station apparatus including a controller configured to control a core net interface unit, a PDCP layer configured to handle a PDCP-PDU, and an RRC layer configured to perform radio resource control, in which the PDCP-PDU is able to use at least an IP packet or an Ethernet (registered trade name) frame, and in a case that the controller is configured such that the PDCP-PDU uses the Ethernet (registered trade name) frame, the base station apparatus receives, from the mobile station apparatus, an RRC message including a MAC address list of Ethernet (registered trade name).

Abstract: Communication efficiency can be enhanced during multiplex communication. A radio control station apparatus includes a multi-beam antenna unit capable of controlling each of a plurality of beam performances and an RF system for transmission. The RF system further includes a multiplexing unit configured to perform multiplexing by using a plurality of frequency channels or a plurality of sub-carriers, allocates at least one of the plurality of different frequency channels or at least one of the plurality of different sub-carriers to each of transmit signals to be transmitted to the plurality of radio terminal apparatuses, multiplexes the above allocated frequency channels or sub-carriers in the multiplexing unit, and transmits the multiplexed signal through the multi-beam antenna unit using a plurality of beams.

Abstract: A terminal apparatus for communicating with a base station apparatus, the terminal apparatus including: a receiver configured to receive downlink control information and a downlink shared channel; and a signal detection unit configured to demodulate the downlink shared channel (PDSCH) by using the downlink control information, wherein the downlink control information includes information for indicating an antenna port number and the number of code division multiplexing (CDM) groups for a demodulation reference signal (DMRS), each of the CDM groups indicates a DMRS port to be multiplexed by CDM, the PDSCH is demodulated in consideration of a power ratio of the DMRS and the PDSCH, and whether or not to consider powers of the DMRS and the PDSCH, based on the number of the CDM groups, is determined based on the downlink control information.

Abstract: To provide a terminal apparatus and a communication method capable of improving reliability and frequency efficiency in a case of transmission by beamforming. Provided are a higher layer processing unit configured with demodulation reference signal (DMRS) antenna port groups for indicating two groups of antenna ports of a DMRS, a receiver configured to receive the DMRS, downlink control information (DCI), and a downlink shared channel (PDSCH), and a decoding unit configured to decode the PDSCH, wherein the PDSCH includes a transport block, and in a case that the number of the transport blocks configured in the DCI is one, the PDSCH demodulated using a DMRS of a first group and/or the PDSCH demodulated using a DMRS of a second group is used to decode one transport block.

Abstract: Provided are a terminal apparatus and a communication method capable of improving reliability and frequency efficiency in a case that transmission is performed by beamforming. A receiver configured to receive a DMRS, DCI, and a PDSCH, and a decoding unit configured to decode the PDSCH are included, wherein the DCI includes a transmission configuration indicator (TCI) and the number of DMRS antenna ports, the TCI is information indicating a spatial reception filter for receiving the DMRS, the PDSCH includes a transport block, and in a case that two of the TCIs are indicated and the number of DMRS antenna ports is less than or equal to a prescribed number, and that the DCI includes a configuration of one transport block, the PDSCH transmitted from a part of the DMRS antenna ports is received based on a first TCI, and the PDSCH transmitted from a rest of the DMRS antenna ports is received based on a second TCI to decode the one transport block.

Abstract: Provided is a base station that is a base station apparatus connected to a terminal apparatus, the terminal apparatus being connected to a plurality of the base station apparatuses through physical link channels. In a case that a bandwidth assistant information request is received from the terminal apparatus, bandwidth assistant information for each of the physical link channels to which the terminal apparatus is connected is transmitted to the terminal apparatus.

Abstract: In a case that a viewer performs video communication using an ultra high resolution display apparatus with a large screen, a video that can be captured is restricted due to restriction on arrangement of video cameras, and this reduces sense of presence and consequently impairs user experience. Multiple video camera apparatuses arranged outside a display area of a display apparatus are used to generate a video of an arbitrary view point from videos captured by the multiple video camera apparatuses, by using a video processing apparatus on a network and to display the generated video on a display apparatus of a communication partner.

Abstract: A base station apparatus, a terminal apparatus, and a communication method are provided that can distinguish eMBB traffic from URLLC traffic in an uplink.

Abstract: A communication means which allocates a terminal identifier to a destination communication apparatus and carries out communication with the destination communication apparatus by use of a plurality of functions including an identifier generation section 152 for generating different terminal identifiers corresponding to a function used and an identifier allocation section 114 having an identifier selecting section 104 for allocation to the destination communication apparatus. Using a plurality of different terminal identifiers (terminal function identifiers), a function to be used between the destination can be specified. Moreover, it is possible to optimize the size of a memory for storing information required for adaptive modulation control.

Abstract: Provided is a terminal apparatus for communicating with a base station apparatus by using a plurality of subcarriers by a grant free access scheme, the terminal apparatus includes: a configuration unit configured to configure the number of the plurality of subcarriers to be used for transmission to the specific number of the plurality of subcarriers less than or equal to the prescribed number of the plurality of subcarriers; and a transmitter configured to transmit, in a prescribed communication band, a transmit signal by using the plurality of subcarriers of the specific number among the plurality of subcarriers of the prescribed number, in which the transmit signal does not include information for indicating the specific number of the plurality of subcarriers, the transmitter performs determination of a frequency in the prescribed communication band to which the plurality of subcarriers of the specific number are allocated, and the determination of the frequency in the prescribed communication band is not c

Abstract: An apparatus includes: a receiver configured to receive a channel state information reference signal (CSI-RS), downlink control information (DCI), and a downlink shared channel (PDSCH); a measurement unit configured to determine CSI from the CSI-RS, based on CSI configuration information; and a transmitter configured to transmit the CSI, wherein the DCI includes the CSI configuration information, and the CSI configuration information includes information for indicating whether the PDSCH is associated with configuration information for one CSI-RS resource or is associated with configuration information for a plurality of the CSI-RS resources.

Abstract: Included are a higher layer processing unit configured to configure a resource configuration for a channel state information reference signal (CSI-RS), a transmitter configured to transmit the CSI-RS to the terminal apparatus, and a receiver configured to receive CSI and CSI configuration information from the terminal apparatus, wherein the resource configuration includes configuration information of multiple CSI-RS resources, the CSI includes at least one CRI for indicating one of the multiple CSI-RS resources, and the CSI configuration information indicates whether the CSI includes one CRI of the at least one CRI or multiple CRIs of the at least one CRI in a case that multiple pieces of configuration information of the multiple CSI-RS resources are configured.

Abstract: The present invention includes: a receiver configured to receive interference information and a downlink shared channel; and a signal detection unit configured to demodulate the downlink shared channel, wherein the interference information includes demodulation reference signal (DMRS) information and phase tracking reference signal (PTRS) information, and an interference signal is cancelled or suppressed by using the interference information. The DMRS information includes a DMRS port number, and the PTRS information includes the number of PTRS ports and a DMRS port number associated with a PTRS.

Abstract: In a case that a base station apparatus or a terminal apparatus performs transmission by beamforming and further performs carrier aggregation, Quasi-colocation (QCL) is configured between component carriers. The configured QCL is used for calculating Channel State Information (CSI). Further, the CSI of a component carrier is calculated based on the configuration of QCL between the component carrier and an antenna port. Further, the CSI of the component carrier is calculated based on the number of antenna ports to be used.

Abstract: By transmitting region reconstruction information from a network side device to a terminal side device, quality is enhanced in video reconstruction by super resolution techniques or the like. A video is divided into multiple regions, and the region reconstruction information includes video reconstruction information for each of the multiple regions divided. The region reconstruction information is generated based on the classification information associated with the video.

Abstract: Immediately after signaling to transition to a standby state between the access point apparatus and the station apparatus of the present invention, the access point apparatus transmits a wake-up radio signal and transitions to a standby state after acknowledgement of the delivery of the wake-up radio signal.

Abstract: Communication efficiency can be enhanced during multiplex communication. A radio control station apparatus includes a multi-beam antenna unit capable of controlling each of a plurality of beam performances and an RF system for transmission. The RF system further includes a multiplexing unit configured to perform multiplexing by using a plurality of frequency channels or a plurality of sub-carriers, allocates at least one of the plurality of different frequency channels or at least one of the plurality of different sub-carriers to each of transmit signals to be transmitted to the plurality of radio terminal apparatuses, multiplexes the above allocated frequency channels or sub-carriers in the multiplexing unit, and transmits the multiplexed signal through the multi-beam antenna unit using a plurality of beams.