Method and device for data transmission and resource selection by means of terminal measurement in wireless communication system

    公开(公告)号:US10973033B2

    公开(公告)日:2021-04-06

    申请号:US16327106

    申请日:2017-08-22

    Inventor: Hyukjin Chae

    Abstract: A method for transmitting a physical sidelink shared channel (PSSCH), by a device-to-device (D2D) terminal, in a wireless communication system involves receiving a physical sidelink control channel (PSCCH) and a PSSCH transmitted in a resource region indicated by the PSCCH. If an energy measurement value with respect to the PSSCH is greater than a preset threshold, the method further involves selecting a transmission resource excluding the resource region in which the PSSCH has been transmitted; and transmitting a D2D signal by means of the selected transmission resource, wherein the threshold has a value that varies in accordance with whether or not the PSSCH is retransmission or the redundancy version (RV) of the PSSCH.

    Method and apparatus for transmitting and receiving data in wireless communication system

    公开(公告)号:US10925035B2

    公开(公告)日:2021-02-16

    申请号:US15580819

    申请日:2016-06-08

    Abstract: The present invention relates to a method and an apparatus for a first device transmitting and receiving data to/from one or more devices in a wireless communication system supporting vehicle to everything (V2X) service, and is characterised by the first device measuring an energy level of a first resource region for supporting the V2X service and transmitting a particular message via one or more resource regions of the first resource region and a second resource region based on the measurement result, wherein the second resource region represents a resource region for the first device transmitting the particular message to a second device via a network and the first resource region represents a resource region for the first device transmitting the particular message directly to the second device.

    METHOD AND DEVICE FOR SELECTING RESOURCE AND TRANSMITTING PSSCH IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210014845A1

    公开(公告)日:2021-01-14

    申请号:US16938043

    申请日:2020-07-24

    Abstract: An embodiment of the present invention provides a method for a first UE to transmit a physical sidelink shared channel (PSSCH) in a wireless communication system, the PSSCH transmission method comprising: a step of excluding subframes, used by a second UE, from candidate subframes for PSSCH transmission; and a step of selecting a subframe for transmitting a PSSCH and transmitting the PSSCH, after excluding the subframes, used by the second UE, from the candidate subframes, wherein the subframes used by the second UE include subframes assumed to be repeatedly used by the second UE according to a reservation period of the second UE, wherein, if the reservation period of the second UE is smaller in value than a predetermined value, the shorter the reservation period of the second UE becomes, the greater the number of the subframes assumed to be repeatedly used becomes.

    METHOD FOR TRANSMITTING OR RECEIVING SIDELINK SIGNAL BY TERMINAL IN WIRELESS COMMUNICATION SYSTEM SUPPORTING SIDELINK AND APPARATUS THEREFOR

    公开(公告)号:US20210007103A1

    公开(公告)日:2021-01-07

    申请号:US16979326

    申请日:2019-03-29

    Inventor: Hyukjin Chae

    Abstract: Disclosed according to various embodiments are a method for transmitting a sidelink signal by a terminal in a wireless communication system supporting a sidelink and an apparatus therefor. The method for transmitting a sidelink signal comprises the steps of: applying scramble codes to data symbols and a DMRS; performing frequency-division multiplexing (FDM) of the data symbols and the DMRS; and transmitting a sidelink signal including the frequency division multiplexed (FDM) data symbols and DMRS, wherein the transmitted sidelink signal is a single sidelink signal selected from a plurality of sidelink signals which are generated by applying the plurality of scramble codes to the data symbols and the DMRS, respectively.

    Method for transmitting and receiving data in wireless communication system, and apparatus therefor

    公开(公告)号:US10791584B2

    公开(公告)日:2020-09-29

    申请号:US16314482

    申请日:2017-07-03

    Abstract: Disclosed are a method for transmitting and receiving data in a wireless communication system supporting vehicle-to-everything (V2X) communication, and an apparatus therefor. Specifically, a method for transmitting and receiving data by a first terminal in a wireless communication system supporting V2X comprises the steps of: receiving, from a base station, downlink control information (DCI) including resource allocation information related to the transmission of control information for a sidelink; transmitting, to a second terminal, the control information for the sidelink on the basis of the resource allocation information; and transmitting at least one type of data to the second terminal, wherein the control information for the sidelink can be transmitted in a second subframe positioned after a predetermined offset from a first subframe in which the downlink control information is received.

    METHOD FOR TRANSMITTING SIDELINK MESSAGE BY TERMINAL IN WIRELESS COMMUNICATION SYSTEM, AND TERMINAL USING SAME METHOD

    公开(公告)号:US20200288431A1

    公开(公告)日:2020-09-10

    申请号:US16651125

    申请日:2018-10-15

    Abstract: Provided is a method for transmitting a sidelink message by a terminal in a wireless communication system. The method comprises: selecting at least one sidelink message among a plurality of sidelink messages, on the basis of the importance of each of the sidelink messages; selecting at least one carrier among a plurality of predetermined carriers, on the basis of the priority of each of the carriers and the importance of the selected at least one sidelink message; and transmitting the selected at least one sidelink message through the selected at least one carrier, wherein a sidelink message having relatively high importance among the selected at least one sidelink message is preferentially transmitted through a carrier having relatively high priority among the selected at least one carrier.

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