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.

Abstract: A method of channel state information (CSI) reporting is disclosed that includes determining, with a user equipment (UE), whether CSI to be reported includes a matrix based on network (NW) triggering and performing, with the UE, CSI reporting based on the determination. The CSI reporting may be periodic, semi-persistent, or aperiodic CSI reporting. The matrix may be W1,l, Wf,l, or both. The NW triggering may be explicitly performed using one or more downlink control information (DCI) bits. The NW triggering may be implicitly performed based on a location of DCI detected by the UE. In other aspects, a user equipment is also disclosed.

Abstract: A terminal incudes a processor, a transmitter, and Rx antenna ports. The number of the Rx antenna ports is less than or equal to 8. The transmitter transmits a sounding reference signal (SRS) using the Rx antenna ports. The processor that switches the antenna ports for the SRS transmission. The number of Rx antenna ports is 8. A method of communicating with a terminal including 8 Rx antenna ports includes transmitting, to a base station, an SRS; and switching among the 8 Rx antenna ports for the SRS transmission.

Abstract: A terminal is disclosed including a processor that measures for beam management: a Doppler spread or a coherence time associated with a beam and one or more reporting quantities. The terminal also includes a transceiver that reports the Doppler spread or the coherence time. In other aspects, a method for a terminal and a base station are also disclosed.

Abstract: A method of transmission precoding matrix indicator (TPMI) grouping includes identifying, all TPMI groups to achieve uplink (UL) full power for Capability 3 partial coherent user equipment (UE) with 4-Tx ports with a Mode 2 operation.

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 method for reducing feedback overhead associated with bitmap reporting may be implemented between a user equipment and a base station. The method includes activating a coding scheme for reporting a bitmap in association with a prefix coding scheme, encoding a plurality of bit groups using the prefix coding scheme, generating a plurality of codeword sets for the plurality of bit groups, and reporting the codeword sets generated.

Abstract: A user equipment (UE) in communication with a base station (BS) is disclosed that includes a processor that determines a Physical Uplink Control Channel (PUCCH) resource used for transmitting uplink control information (UCI) and a transmitter that transmits, to the BS, the UCI on the determined PUCCH resource. In other aspects a method performed by a UE and a wireless communication system are also disclosed.

Abstract: A method of applying rank two transmission from a plurality of sets of coherent antennas of a user equipment (UE) in a wireless communication system includes: transmitting two information streams using a first set from the plurality of sets of coherent antennas of the UE; and transmitting the two information streams using a second set from the plurality of sets of the coherent antennas of the UE. The first set and the second set are incoherent with respect to each other. The two information streams are common to the first set and the second set.