METHOD FOR TRANSMITTING AND RECEIVING DATA IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR

    公开(公告)号:US20210084631A1

    公开(公告)日:2021-03-18

    申请号:US17108580

    申请日:2020-12-01

    Abstract: The present invention relates to a method and device for operating a terminal in a wireless communication system. According to the present invention, downlink control information is transmitted to a terminal and can include symbol information related to the last symbol of a downlink shared channel. A method and device can be provided wherein a terminal transmits a first demodulation reference signal(DMSR) and at least one second DMRS for demodulating downlink data, and transmits data through the downlink shared channel, and a symbol position to which the at least one second DMRS is mapped is determined according to the symbol information.

    METHOD AND DEVICE FOR TRANSMITTING OFDM SIGNAL, AND METHOD AND DEVICE FOR RECEIVING OFDM SIGNAL

    公开(公告)号:US20210007083A1

    公开(公告)日:2021-01-07

    申请号:US16964287

    申请日:2018-12-04

    Abstract: A method of transmitting, by a transmitting device, an orthogonal frequency division multiplexing (OFDM) signal in a wireless communication system, the method including: generating, by a digital module of the transmitting device, a frequency-shifted OFDM baseband signal by performing frequency up-shift of a first signal by a difference between a carrier frequency and a first frequency , wherein the first frequency is, among frequencies corresponding to integer multiples of 128Δ; closest to the carrier frequency , and wherein Δ is an OFDM subcarrier spacing; up-converting, by an analog oscillator of the transmitting device, the frequency-shifted OFDM baseband signal by the first frequency to generate an OFDM symbol signal at the carrier frequency fo; and transmitting the OFDM symbol signal at the carrier frequency .

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNALS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200266870A1

    公开(公告)日:2020-08-20

    申请号:US16652022

    申请日:2018-10-01

    Abstract: Disclosed are a method and an apparatus for transmitting and receiving signals in a wireless communication system, the method comprising the steps of: measuring signal quality on the basis of a first beam set including a plurality of receiving beams; configuring a second beam set, on the basis of the first beam set, including a smaller number of receiving beams than the first beam set; measuring the signal quality on the basis of the second beam set; determining a reference value for the signal quality on the basis of the quality values measured on the basis of the second beam set; and, when the reference value is equal to or greater than the threshold value, transmitting information on the reference value to a base station, wherein the threshold value is determined on the basis of the maximum value from among the quality values measured on the basis of the first beam set, and a previously configured margin value.

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