Abstract: The present disclosure provides a terminal and a base station in a communication system. The terminal includes: a receiving unit configured to receive, from a base station, first information indicating a first parameter, where the first parameter indicates a number of candidate transform domain vectors regarding a subcarrier-level precoding matrix, and a value of the first parameter is smaller than a number of subcarriers of the communication system; the receiving unit being further configured to receive, from the base station, second information indicating a second parameter, where the second parameter indicates a number of transform domain vectors used to determine the subcarrier-level precoding matrix; and a control unit configured to determine, from the number of candidate transform domain vectors indicated by the first information, the number of transform domain vectors indicated by the second information.

Abstract: A user equipment (UE), as disclosed, includes: a processor that identifies that a plurality of groups of transmission precoding matrix indicator (TPMI) include a group including a TPMI for Rank 3 and multiple TPMIs for Rank 2, and that a combination of some columns of a plurality of columns constituting a precoding matrix corresponding to the TPMI for Rank 3 and another combination of columns that is different from the combination of the some columns correspond respectively to combinations of columns constituting precoding matrices corresponding to the multiple TPMIs for Rank 2; and a transmitter that transmits, based on the identification, UE capability information corresponding to a TPMI group that provides uplink (UL) full power for partial-coherent UE by using four antenna ports, to a base station. In other aspects, a radio communication method, a base station, and a system are also disclosed.

Abstract: A terminal for performing Channel State Information (CSI) reporting for type II port selection codebook includes a receiver that receives beamformed CSI reference signal (RS) ports comprising spatial domain (SD) beams and frequency domain (FD) base. In addition, the terminal includes a processor that, using higher layer signaling, configures a number of SD beam selection and a number of FD base selection, and selects a first value from a first set of values for the number of SD beam selection and a second value from a second set of values for the number of FD base section. The terminal further includes a transmitter that transmits the first value and the second values.

Abstract: A user equipment (UE) in communication with a base station (BS) is disclosed that includes a receiver that receives Channel State Information (CSI)-Reference Signals (RSs) from the BS, a processor that generates CSI based on the CSI-RS and performs CSI omission, and a transmitter that transmits, to the BS, CSI reports including the CSI where one or more linear combination (LC) coefficients are omitted based on the CSI omission. Further, in the CSI omission, the processor prioritizes LC coefficients based on a predetermined priority rule and the processor also determines the omitted one or more LC coefficients based on the prioritized LC coefficients. In other aspects, a method for a UE and a wireless communication system are disclosed.

Abstract: A wireless communication method includes receiving, via downlink control information (DCI) or higher layer signaling, configuration information including a frequency sounding with Sounding Reference Signal (SRS) configuration; and configuring partial or full frequency sounding with SRS transmission based on the configuration information.

Abstract: A wireless communication method for a. User Equipment (UE) is disclosed that includes receiving, via downlink control information (DCI) or higher layer signaling, configuration information and configuring a format for a Channel State Information (CSI) report based on the configuration information and based on whether a bitmap is being reported from the UE. The CSI report includes part 1 and part 2. The Part 1 has a fixed payload size and is used to identify the number of information bits in the part 2.

Abstract: A wireless communication method for a terminal includes: receiving, via downlink control information (DCI) or higher layer signaling, configuration information including a parameter, configuring Aperiodic Sounding Reference Signal (A-SRS) transmission based on the parameter; and reporting, based on a usage setting, capability information including a minimum timing requirement between A-SRS triggering Physical Downlink Control Channel (PDCCH) and SRS resources in a resource set.

Abstract: A wireless communication method for a terminal is disclosed that includes receiving, via Downlink Control Information (DCI) or higher layer signaling, configuration information; and configuring whether to report additional Discrete Fourier Transform (DFT) bases based on the configuration information. In other aspects, a terminal and a system are also disclosed.

Abstract: A wireless communication method is disclosed that includes receiving, via downlink control information (DCI) or higher layer signaling, configuration information including a parameter and configuring aperiodic Sounding Reference Signal (SRS) (A-SRS) transmission based on the parameter. In other aspects, a terminal and a wireless communication system are also disclosed.

Abstract: A wireless communication method is disclosed that includes receiving, via downlink control information (DCI) or higher layer signaling, configuration information for a. Sounding Reference Signal (SRS) configuration and configuring one or more SRS resources for partial or full frequency sounding based on the configuration information. In other aspects, a terminal and a wireless communication system are also disclosed.

Abstract: The present disclosure provides a terminal and a base station in a communication system. The terminal includes: a receiving unit configured to receive, from a base station, first information indicating a first parameter, where the first parameter indicates a number of candidate transform domain vectors regarding a subcarrier-level precoding matrix, and a value of the first parameter is smaller than a number of subcarriers of the communication system; the receiving unit being further configured to receive, from the base station, second information indicating a second parameter, where the second parameter indicates a number of transform domain vectors used to determine the subcarrier-level precoding matrix; and a control unit configured to determine, from the number of candidate transform domain vectors indicated by the first information, the number of transform domain vectors indicated by the second information.

Abstract: The present disclosure provides a method for precoding matrix indicator (PMI) transmission and a method for determining precoding granularity performed by a terminal, and a corresponding terminal and base station. The terminal includes: a receiving unit configured to receive first information about the precoding matrix indicator (PMI) from a base station of the communication system; and a control unit configured to determine whether to transmit second information about the precoding matrix indicator according to the first information, wherein the precoding matrix indicator is for a subcarrier-level precoding matrix.

Abstract: A wireless communication method for a terminal, a terminal, and a wireless communication system receive one or more Channel State Information Reference Signals (CSI-RSs). Further, quantization of combination coefficients of the one or more CSI-RSs corresponding to one or more spatial beams Discrete Fourier Transform (DFT) basis vector amplitudes is performed.

Abstract: The present disclosure provides a terminal and a base station. The terminal includes: a control unit, configured to determine at least one group of transform domain vectors, the at least one group of transform domain vectors being used for determining a precoding matrix for a subcarrier level, and a sending unit, configured to send precoding matrix indication information to a base station, the precoding matrix indication information including first information, the first information being used for indicating at least one group of transform domain vectors. The base station includes a receiving unit, configured to receive precoding matrix indication information from a terminal, the precoding matrix indication information at least including first information, the first information being used for indicating at least one group of transform domain vectors, and a control unit, configured to determine a precoding matrix according to the precoding matrix indication information.

Abstract: A terminal for performing Channel State Information (CSI) reporting for type II port selection codebook includes a receiver that receives beamformed CSI reference signal (RS) ports comprising spatial domain (SD) beams and frequency domain (FD) base. In addition, the terminal includes a processor that, using higher layer signaling, configures a number of SD beam selection and a number of FD base selection, and selects a first value from a first set of values for the number of SD beam selection and a second value from a second set of values for the number of FD base section. The terminal further includes a transmitter that transmits the first value and the second values.

Abstract: A user equipment (UE) is disclosed that includes a receiver that receives a parameter and a processer that, based on the parameter, configures Sounding Reference Signal (SRS) resources with a first SRS resource set and a second SRS resource set. The UE further includes a transmitter that transmits one or more SRSs using the SRS resources. In other aspects, a method and a wireless communication system are also disclosed.

Abstract: A terminal is disclosed that includes a receiver that receives beamforming information relating to one or more beamformed Channel State Information—Reference Signals (CSI-RSs), the CSI-RSs corresponding to one or more Spatial Domains (SDs) or Frequency Domains (FDs). The terminal also includes a processor that determines a type of the one or more CSI-RSs, and when the type of the one or more CSI-RS is a Type II, performs a Type II port selection codebook with a beamformed CSI-RS of the one or more CSI-RSs in the SD and FD domains.

Abstract: In order to appropriately perform communication using information related to a channel state information reference signal reported from a terminal, a terminal according to one aspect of the present disclosure includes a control section that controls reporting of a plurality of pieces of first information related to a combination of a channel state information resource for a band combination and the number of ports for the band combination and second information related to the number of ports per channel state information resource for the band combination, and a transmitting section that transmits the first information and the second information.

Abstract: A terminal according to one aspect of the present disclosure includes a control section that judges, on the basis of whether to support antenna port switching between arbitrary antenna port pairs, correspondence between a bit of transmitted precoding matrix indicator (TPMI) group capability information and a TPMI group, and a transmitting section that transmits, on the basis of the correspondence, the TPMI group capability information corresponding to a TPMI group to support full power transmission. According to one aspect of the present disclosure, it is possible to appropriately control full power transmission.

Abstract: A wireless communication method is disclosed for a user equipment (UE) in communication with a base station (BS) in a network (NW) that includes receiving from the BS, via higher-layer signaling or downlink control information (DCI), configuration information and configuring reception of one or more Channel State Information—Reference Signals (CSI-RSs) based on the configuration information, where the configuration information includes one or more new values to configurable CSI-RS ports in Type II port-selection codebook.