SIGNAL TRANSMISSION/RECEPTION METHOD IN WIRELESS LAN SYSTEM, AND DEVICE THEREFOR

    公开(公告)号:US20190341975A1

    公开(公告)日:2019-11-07

    申请号:US16476518

    申请日:2019-04-02

    Abstract: Proposed are a method and apparatus for transmitting a feedback frame in a wireless local area network (WLAN) system. Specifically, a first STA generates the feedback frame based on multi user (MU)-multi input multi output (MIMO) beamforming. The first STA transmits the feedback frame to a second STA. The feedback frame includes information related to a feedback subcarrier for a predetermined frequency band and a beamforming report field for the MU-MIMO beamforming. The feedback subcarrier includes a first subcarrier transmitted first in the feedback subcarrier and a second subcarrier of which a subcarrier index is determined based on a grouping value related to a subcarrier spacing. The beamforming report field includes a first signal to noise ratio (SNR) for the first subcarrier and a first differential SNR for the second subcarrier. The first differential SNR is an SNR difference between adjacent subcarriers included in the feedback subcarrier.

    METHOD AND APPARATUS FOR TRANSMITTING SHORT SSW FRAME IN WIRELESS LAN SYSTEM

    公开(公告)号:US20190260431A1

    公开(公告)日:2019-08-22

    申请号:US16346094

    申请日:2017-10-30

    Abstract: According to one embodiment of the present specification, provided is a method by which a station (STA) transmits, through a plurality of channels, signals in a wireless LAN (WLAN) system. The method for transmitting signals comprises the steps of: allowing an STA to transmit a packet for an ISS; allowing the STA to receive a packet for an RSS; allowing the STA to transmit a packet for a SSW feedback; and allowing the STA to receive a packet for an SSW ACK, wherein the packet for the SSW feedback and the packet for the SSW ACK can include a field for indicating whether the packet for the ISS and the packet for the RSS are transmitted into the short SSW packet.

    DISPLAY DEVICE USING SEMICONDUCTOR LIGHT EMITTING ELEMENT AND METHOD FOR MANUFACTURING SAME

    公开(公告)号:US20190252579A1

    公开(公告)日:2019-08-15

    申请号:US16310022

    申请日:2017-03-07

    Abstract: The present invention relates to a display device and, particularly, to a display device using a semiconductor light emitting element. The display device according to the present invention comprises: a substrate at which a wire electrode is formed; a plurality of semiconductor light emitting elements electrically connected to the wire electrode; a plurality of fluorescent material layers for converting a wavelength of light; a wavelength converting layer which has a plurality of partition wall portions formed between the plurality of fluorescent material layers and is disposed to cover the plurality of semiconductor light emitting elements; and a color filter which has a plurality of filtering portions for filtering blue, green, and red colors, and is disposed to cover the wavelength converting layer, wherein at least one of the plurality of filtering portions is configured to have a width different from those of the other filtering portions.

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