Abstract:
A method of SRS transmission in a terminal in a mobile communications system using multiple antennas and a Sounding Reference Signal (SRS) hopping is disclosed. The method comprises generating an SRS to be transmitted to a base station. A transmission band is set for transmitting the SRS. An antenna index is determined for transmitting the SRS so that antennas which transmit the SRS are not overlapped in the same transmission band of a first transmission section and a second transmission section. Each transmission section comprises at least one transmission time point. The SRS is transmitted to the base station according to the antenna index and the transmission band. The number of the transmission time point within the transmission section corresponds to the number of the transmission bands.
Abstract:
The present invention is designed to reduce the decrease of spectral efficiency even when repetitious transmission is applied to communication by user terminals, in which the band to use is limited to a partial narrow band in a system band. According to one aspect of the present invention, a user terminal, in which the band to use is limited to partial narrow bands in a system band, has a receiving section that receives information related to spreading codes, a generation section that generates uplink signals, and a transmission section that repeats transmitting uplink signals in a plurality of subframes, and the generation section applies a predetermined spreading code to an uplink signal that is transmitted in part or all of the plurality of subframes, based on the information related to spreading codes.
Abstract:
A method of SRS transmission in a terminal in a mobile communications system using multiple antennas and a Sounding Reference Signal (SRS) hopping is disclosed. The method comprises generating an SRS to be transmitted to a base station. A transmission band is set for transmitting the SRS. An antenna index is determined for transmitting the SRS so that antennas which transmit the SRS are not overlapped in the same transmission band of a first transmission section and a second transmission section. Each transmission section comprises at least one transmission time point. The SRS is transmitted to the base station according to the antenna index and the transmission band. The number of the transmission time point within the transmission section corresponds to the number of the transmission bands.