METHOD FOR TRANSCEIVING DATA IN UNLICENSED BAND AND APPARATUS FOR SAME

    公开(公告)号:US20190150170A1

    公开(公告)日:2019-05-16

    申请号:US15759200

    申请日:2016-09-21

    Abstract: The present invention relates to a wireless communication system, and more particularly, to a method for transceiving data in an unlicensed band and an apparatus for same. In particular, disclosed in the present invention are a method and an apparatus for same, the method comprising: a terminal receiving, from a base station, listen before talk (LBT)-type information and information relating to an uplink data transmission interval during which the data is transmitted from within one subframe; and transmitting the data to the base station only during the uplink data transmission interval from within the one subframe, based on an LBT operation indicated by the LBT-type information, thereby efficiently transceiving data between the terminal and the base station in the unlicensed band.

    METHODS AND DEVICES FOR TRANSMITTING/RECEIVING DISCOVERY SIGNAL IN WIRELESS ACCESS SYSTEM SUPPORTING UNLICENSED BAND

    公开(公告)号:US20180302203A1

    公开(公告)日:2018-10-18

    申请号:US15770101

    申请日:2016-10-21

    Abstract: The embodiments of the present invention relate to a wireless access system supporting an unlicensed band and to methods for generating a discovery signal (DRS), methods for generating and transmitting a channel state information reference signal included in the DRS, and devices for supporting same. The method for transmitting a discovery signal (DRS) including a channel state information reference signal (CSI-RS) in a wireless access system supporting an unlicensed band, according to one embodiment of the present invention, may comprise the steps of: initiating, in subframe n (SF #n), a listen-before-talk (LBT) procedure for checking whether the unlicensed band is idle or not; if an LBT procedure succeeds in SF #n+k, generating a sequence for transmitting the CSI-RS on the basis of the subframe index j indicating SF #j; and transmitting the DRS, including the CSI-RS, in SF #n+k. Herein n, k, and j are preferably integers greater than or equal to 0 and less than or equal to 9.

    METHOD FOR TRANSMITTING DOWNLINK IN UNLICENSED BAND

    公开(公告)号:US20180139775A1

    公开(公告)日:2018-05-17

    申请号:US15557325

    申请日:2016-03-11

    CPC classification number: H04W72/14 H04W16/14 H04W74/0808

    Abstract: A method for transmitting a downlink in an unlicensed band is provided. A plurality of base stations in a first group determine a first delay time from a reference time point for initiating a clear channel assessment (CCA) in the unlicensed band. The plurality of base stations execute CCA during a CCA section after the first delay time from the reference time point, and check whether a channel is idle. If the channel is idle, the plurality of base stations simultaneously transmits a downlink.

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