METHOD AND TERMINAL FOR APPLYING ON/OFF POWER TIME MASK FOR V2X COMMUNICATION

    公开(公告)号:US20190141650A1

    公开(公告)日:2019-05-09

    申请号:US16308295

    申请日:2017-06-02

    Abstract: One embodiment of the present invention provides a method for a vehicle-to-everything (V2X) communication terminal applying an on/off power time mask. The method may comprise the step of applying an on/off power time mask in a case where a primary sidelink synchronization signal (PSSS), a secondary sidelink synchronization signal (SSSS) and a physical broadcast channel (PSBCH) are transmitted from one subframe. Here, the on/off time mask may designate an observation period between an SSSS symbol and an adjacent PSSS symbol in the subframe. Power for the PSSS may be turned off at 20 microseconds (μs) before the start of a first SSSS symbol in the subframe. Further, power for the SSSS may be turned on at 20 μs after before the start of the first SSSS symbol in the subframe.

    BUFFER MANAGEMENT METHOD FOR D2D COMMUNICATION, AND WIRELESS DEVICE

    公开(公告)号:US20180115395A1

    公开(公告)日:2018-04-26

    申请号:US15557385

    申请日:2016-03-31

    Abstract: One embodiment of the present specification provides a method by which a wireless device manages a buffer for performing soft combining. The method can comprise the steps of: decoding data received through device-to-device (D2D) communication; determining whether an error exists in the decoded data; determining whether a radio resource control (RRC) connection with a base station is established or/and a carrier aggregation is configured and activated if the error exists; taking at least one from among an instantaneous buffer to be used when the carrier aggregation is activated and a hybrid automatic repeat request (HARQ) buffer to be used when the RRC connection is established, on the basis of whether the RRC connection with the base station is established and whether the carrier aggregation is activated; and storing, in the taken one or more buffers, a soft bit for performing soft combining.

    CONNECTIVITY SUPPORTING METHOD FOR D2D COMMUNICATION AND WIRELESS DEVICE

    公开(公告)号:US20170366919A1

    公开(公告)日:2017-12-21

    申请号:US15536116

    申请日:2015-12-24

    CPC classification number: H04W4/70 H04W72/0406 H04W72/0446 H04W72/12 H04W76/10

    Abstract: A disclosure of the present specification provides a method for supporting connectivity of device-to-device (D2D) communication between a first wireless device and a second wireless device. The method may comprise the steps of: receiving, by a third wireless device, information on a resource pool which can be used for D2D communication, from a base station; transmitting, by the third wireless device, information on a resource which can be used for D2D communication between the first wireless device and the second wireless device to the first wireless device and the second wireless device, on the basis of the received information; and performing, by the third wireless device, a procedure for providing necessary data to the second wireless device when the disconnection of the D2D communication link between the first wireless device and the second wireless device is detected.

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