METHOD FOR CELL CYCLIC DOWNLINK TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR

    公开(公告)号:US20200305130A1

    公开(公告)日:2020-09-24

    申请号:US16088525

    申请日:2016-10-18

    Abstract: The present application provides a method for receiving a downlink signal by a terminal in a wireless communication system. Specifically, the method comprises the steps of: receiving a downlink control signal, a first downlink data signal, a first downlink demodulation reference signal for the first downlink data signal in a first time unit; and receiving a second downlink data signal and a second downlink demodulation reference signal for the second downlink data signal in a second time unit, wherein the downlink control signal includes information on a first antenna port for a reference signal, the first antenna port being quasi-co-located (QCL) with an antenna port for the first downlink demodulation reference signal, and information on a second antenna port for a reference signal, the second antenna port being quasi-co-located (QCL) with an antenna port for the second downlink demodulation reference signal.

    METHOD FOR MEASURING CHANNEL BETWEEN TERMINALS IN WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR

    公开(公告)号:US20200235961A1

    公开(公告)日:2020-07-23

    申请号:US16486147

    申请日:2017-02-15

    Abstract: The present invention provides a method for measuring a channel between terminals in a wireless communication system, and a device for the method. Particularly, a method for a first terminal to measure a channel in a wireless communication system may comprise: a step of transmitting, to a base station, a first message requesting sounding reference signal (SRS) configuration information associated with a second terminal; a step of receiving, from the base station, a second message including at least one of the SRS configuration information associated with the second terminal and identification information of the second terminal; a step of receiving at least one SRS from the second terminal, by using an SRS configuration associated with the second terminal identified based on the received second message; and a step of measuring a channel with the second terminal by using the received at least one SRS.

    METHOD AND DEVICE FOR PERFORMING DEVICE-TO-DEVICE COMMUNICATION BY SHARING UPLINK RESOURCE AND SIDELINK RESOURCE IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200100119A1

    公开(公告)日:2020-03-26

    申请号:US16613108

    申请日:2018-01-31

    Abstract: Provided are a method and a device for performing device-to-device communication by sharing an uplink resource and a sidelink resource in a wireless communication system. Particularly, a first terminal receives, from a base station, beam scanning signals and a first threshold value. The first terminal generates first reception beam information including beam information of a signal received at a signal intensity greater than or equal to the first threshold value, among the beam scanning signals. The first terminal receives second reception beam information from the base station. The second reception beam information includes beam information of a first uplink signal received by the base station from a second terminal. The first terminal transmits a sidelink signal through the sidelink resource by using a beam obtained by excluding a third reception beam from a first reception beam. The third reception beam is a beam of the first terminal for receiving a signal transmitted using a transmission beam of the base station in the same direction as a second reception beam. The sidelink resource is overlapped with the uplink resource in time and frequency domains.

    METHOD AND APPARATUS FOR PERFORMING SCHEDULING REQUEST FOR UPLINK DATA TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200059949A1

    公开(公告)日:2020-02-20

    申请号:US16346090

    申请日:2017-10-17

    Abstract: A method and apparatus for performing a scheduling request for transmitting uplink data in a wireless communication system are provided. Specifically, a terminal receives allocation information for a first SR resource that is semi-statically allocated from a base station. The terminal receives allocation information for a second SR resource dynamically allocated from the base station. The second SR resource is additionally allocated in addition to the first SR resource for a buffer status report (BSR). At this time, the allocation information for the first SR resource comprises: mapping information between the first and second SR resources and buffer size information. The terminal transmits an SR to the base station through the first SR resource or the second SR resource.

    METHOD FOR TRANSCEIVING DATA IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS FOR SAME

    公开(公告)号:US20200037353A1

    公开(公告)日:2020-01-30

    申请号:US16590132

    申请日:2019-10-01

    Abstract: The present specification relates to a method for transceiving uplink data (UL data) in a wireless communication system, the method performed by a user equipment (UE) comprising: receiving a first uplink grant (UL grant) from a base station; transmitting a first item of uplink data (UL data) to the base station on the basis of the first uplink grant; receiving, from the base station, a HARQ response to the first item of uplink data; and transmitting a second item of uplink data (UL data) to the base station, wherein the method further comprises a step of transceiving, with the base station, indication information indicating whether the second item of uplink data is HARQ data or non-HARQ data.

    METHOD FOR CONTROLLING WIRELESS LINK AND WIRELESS CONNECTION OF TERMINAL IN WIRELESS COMMUNICATION SYSTEM, AND APPARATUS SUPPORTING SAME

    公开(公告)号:US20190357065A1

    公开(公告)日:2019-11-21

    申请号:US16473221

    申请日:2016-12-23

    Abstract: Disclosed herein is a method and apparatus for a device to perform a measurement in a wireless communication system. According to the present invention, it may be provided the method and apparatus including receiving, from a base station, a request message requesting capability information of the device; transmitting, to the base station, a response message including the capability information; receiving first configuration information for a measurement configuration for two or more radio units included in the device based on the capability information, and the radio unit represents a unit available to perform transmission and reception of a signal and a measurement of signal strength individually; measuring a serving cell and neighboring cells through the plurality of radio units; and transmitting, to the base station, a reporting message including measurement information measuring the serving cell and the neighboring cells.

    METHOD AND DEVICE FOR TRANSMITTING RELAY SIGNAL FOR V2X COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20190306678A1

    公开(公告)日:2019-10-03

    申请号:US16341507

    申请日:2017-07-18

    Abstract: Provided are a method for transmitting a relay signal for V2X communication in a wireless communication system and a device using the same. Specifically, a terminal receives allocation information of a first relay resource and a second relay resource for a communication group from a base station. A first terminal receives a data signal through a reception beam for the first relay resource from a second terminal. The first terminal transfers the data signal to a third terminal through a transmission beam for the first relay resource. Further, the first terminal transmits an ACK/NACK for the data signal to the second terminal through a transmission beam for the second relay resource. The reception beam for the first relay resource is symmetrical to the transmission beam for the second relay resource. The transmission beam for the first relay resource is symmetrical to a reception beam for the second relay resource.

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