METHOD FOR TRANSMITTING OR RECEIVING D2D SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND DEVICE THEREFOR

    公开(公告)号:US20190089451A1

    公开(公告)日:2019-03-21

    申请号:US15741663

    申请日:2016-07-11

    Abstract: According to one embodiment of the present invention, a method by which a terminal for supporting device to device (D2D) communication relays a D2D signal comprises the steps of: transmitting, by the terminal, a D2D signal to be relayed to a neighboring terminal; and relaying a signal transmitted by the neighboring terminal, on the basis of the information on the D2D signal, wherein the information on the D2D signal includes information on D2D power, and the information on the D2D power can be determined by considering a reception power difference between D2D signals transmitted on mutually adjacent frequencies.

    Method for sensing unlicensed band and device therefor

    公开(公告)号:US10237890B2

    公开(公告)日:2019-03-19

    申请号:US15506222

    申请日:2015-09-21

    Abstract: A method by which a terminal performs an uplink (UL) transmission in a unlicensed band-secondary carrier, according to one embodiment of the present invention, comprises the steps of: receiving, in a primary carrier, a first channel including a unlicensed band UL prescheduling approval and a second channel including a unlicensed band UL transmission triggering approval; determining whether the unlicensed band UL transmission has been permitted, on the basis of the received first and second channels; and if it is determined that the unlicensed band UL transmission has been permitted, performing the UL transmission through a channel of the unlicensed band-secondary carrier only if the channel of the unlicensed band-secondary carrier is an idle state, wherein the first channel and the second channel can be received sequentially in predetermined time intervals.

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