Signal transmission and reception method on basis of LTE and NR in wireless communication system and device therefor

    公开(公告)号:US11140692B2

    公开(公告)日:2021-10-05

    申请号:US16634980

    申请日:2018-07-30

    Abstract: The present invention relates to signal transmission and reception method and device by an equipment which is dual-connected to a first radio access technology (RAT) and a second RAT in a wireless communication system. The method comprises the steps of: a first signal in accordance with a first RAT and a second signal in accordance with a second RAT being scheduled separately timewise; and transmitting and receiving the first signal and the second signal. The operation for the second signal is determined on the basis of whether or not the second signal reception is scheduled in a first time domain for transmitting the first signal. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.

    Method and device for transmitting relay signal for V2X communication in wireless communication system

    公开(公告)号:US10952045B2

    公开(公告)日:2021-03-16

    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.

    Mobile terminal and coil antenna module

    公开(公告)号:US10886602B2

    公开(公告)日:2021-01-05

    申请号:US16657811

    申请日:2019-10-18

    Abstract: There is disclosed a mobile terminal including a first case comprising a battery loading portion, a battery loaded in the battery loading portion, a second case coupled to the first case and configured to cover the battery, a coil antenna module arranged between the second case and the battery, and a controller electrically connected to the coil antenna module and configured to transmit and receive a signal or receive an electric power, wherein the coil antenna module includes an insulating sheet, a first coil arranged in a surface of the insulating sheet, a second coil arranged in the first coil, a third coil arranged in the second coil, and a magnetic sheet disposed on the surface of the insulating sheet, and ends of the first, second and third coils are arranged in the surface of the insulating sheet or dividedly arranged in both surfaces of the insulating sheet. The mobile terminal may realize the coil antenna module including a plurality of coils configured to perform diverse manners of wireless communication in a limited area.

    Uplink multi-antenna transmission method in wireless communication system and apparatus therefor

    公开(公告)号:US10771138B2

    公开(公告)日:2020-09-08

    申请号:US16065704

    申请日:2017-01-03

    Abstract: Disclosed in the present application is a method for transmitting, by a terminal, an uplink signal to a base station through a plurality of antenna ports in a wireless communication system. Specifically, the method comprises the steps of: transmitting, to the base station, uplink reference signals corresponding to the plurality of antenna ports and antenna port grouping information: receiving, from the base station, information on an uplink precoder, which is determined on the basis of the uplink reference signals and the antenna port group information; precoding the uplink signal using the information on the uplink precoder; and transmitting the precoded uplink signal to the base station, wherein the antenna port grouping information comprises information on antenna port groups comprising the plurality of antenna ports and information of the signal distortion level between the antenna port groups.

    Method for transmitting D2D signal of terminal in D2D communication, and device for same

    公开(公告)号:US10728879B2

    公开(公告)日:2020-07-28

    申请号:US15324240

    申请日:2015-08-07

    Abstract: A method of transmitting a device-to-device (D2D) signal by a user equipment (UE) in D2D communication is disclosed. The method for transmitting a D2D signal includes the steps of performing frequency hopping for physical resource blocks (PRBs) in a resource block pool based on a predefined hopping patter, and transmitting a D2D signal using the PRBs. The resource block pool is configured by means of higher layer signaling and the transmission of the D2D signal occurs only when PRBs for transmitting the D2D signal are consecutive in a subframe.

    Channel quality measurement method in multiple antenna wireless communication system and device for same

    公开(公告)号:US10666338B2

    公开(公告)日:2020-05-26

    申请号:US15309019

    申请日:2015-05-29

    Abstract: The present invention relates to a method and device for measuring channel quality by a base station having a two-dimensional active antenna system including multiple antennas. Particularly, the method comprises: receiving channel state information (CSI) generated on the basis of a first reference signal relating to a part of multiple antennas, from a terminal; selecting a precoding and a rank based on a precoding matrix indicator (PMI) and a rank indicator (RI) of the received CSI; generating a port by applying the selected precoding and the selected rank; through the generated port, transmitting, to the terminal, a physical downlink shared channel (PDSCH) and a demodulation-reference signal (DM-RS) configured for the terminal; and receiving, from the terminal, a channel quality indication (CQI) feedback for reducing a mismatch for the CQI of the CSI, wherein the CQI feedback may be generated based on the DM-RS.

    Method for reporting channel state information in wireless communication system and device therefor

    公开(公告)号:US10574325B2

    公开(公告)日:2020-02-25

    申请号:US16418543

    申请日:2019-05-21

    Abstract: A method for receiving, by a user equipment (UE), a channel state information reference signal (CSI-RS) in a wireless communication system, includes receiving, from a base station, CSI-RS resource configuration information related to a numbering for a plurality of CSI-RS resources through a radio resource control (RRC) signaling, wherein the CSI-RS resource configuration information includes first CSI-RS configuration information and at least one second CSI-RS configuration information; and determining numbers for the plurality of CSI-RS resources based on the received CSI-RS resource configuration, wherein a specific CSI-RS resource among the plurality of CSI-RS resources corresponds to a value configured in the first CSI-RS configuration information, and at least one CSI-RS resource except the specific CSI-RS resource among the plurality of CSI-RS resources corresponds to a value configured in the second CSI-RS configuration information, and wherein the specific CSI-RS resource is a CSI-RS resource related to a lowest number among the plurality of CSI-RS resources.

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