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    Uplink transmission power determination method and wireless device
    131.
    发明授权
    Uplink transmission power determination method and wireless device 有权

    公开(公告)号：US10455524B2

    公开(公告)日：2019-10-22

    申请号：US15556605

    申请日：2016-03-31

    Applicant: LG ELECTRONICS INC.

    Inventor： Suhwan Lim ,  Yoonoh Yang ,  Sangwook Lee ,  Manyoung Jung ,  Jinyup Hwang

    IPC: H04W52/02 ,  H04W52/14 ,  H04W52/30 ,  H04W72/04 ,  H04L27/34 ,  H04L27/26 ,  H04W52/36 ,  H04W52/34

    Abstract: A disclosure of the present specification provides a method for determining uplink transmission power by a wireless device. The transmission power determination method may comprise the steps of: determining whether transmission of uplink data uses 64 quadrature amplitude modulation (QAM) or not; determining whether transmission of the uplink data corresponds to multi-clustered transmission or not; determining whether transmission of the uplink data is to be performed through a single carrier or is to be performed through a plurality of carriers according to carrier aggregation; and determining a maximum power reduction (MPR) value, which is to be applied to transmission of the uplink data, according to the determination results. Here, when transmission of the uplink data uses the 64 QAM, corresponds to the multi-clustered transmission, and is performed through the single carrier, a first MPR value may be determined; and, when transmission of the uplink data uses the 64 QAM, corresponds to the multi-clustered transmission, and is performed through the plurality of carriers, a second MPR value may be determined.

    Buffer management method for D2D communication, and wireless device
    134.
    发明授权
    Buffer management method for D2D communication, and wireless device 有权

    公开(公告)号：US10298363B2

    公开(公告)日：2019-05-21

    申请号：US15557385

    申请日：2016-03-31

    Applicant: LG ELECTRONICS INC.

    Inventor： Manyoung Jung ,  Yoonoh Yang ,  Sangwook Lee ,  Suhwan Lim ,  Jinyup Hwang

    IPC: H04W74/00 ,  H04L1/18 ,  H04L5/00 ,  H04L1/00

    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.

    Method and user equipment for selecting cell for which to perform interference cancellation
    135.
    发明授权
    Method and user equipment for selecting cell for which to perform interference cancellation 有权

    公开(公告)号：US10291343B2

    公开(公告)日：2019-05-14

    申请号：US15527929

    申请日：2015-12-01

    Applicant: LG Electronics Inc.

    Inventor： Jinyup Hwang ,  Yoonoh Yang ,  Sangwook Lee ,  Suhwan Lim ,  Manyoung Jung

    IPC: H04J11/00 ,  H04W52/24 ,  H04B17/318 ,  H04W52/40

    Abstract: A disclosure of the present specification provides a method for selecting a cell for which to perform interference cancellation. The method may comprise the steps of: measuring reception power on the basis of reference signals received from neighboring cells; measuring the reception power of a data channel received from a serving cell; selecting a candidate cell among the neighboring cells by comparing the reception power of the data channel from the serving cell with the reception power from the neighboring cells; performing blind detection only for the candidate cell; measuring the reception power of a data channel from the neighboring cell on the basis of the blind detection; and when the reception power of the data channel from the neighboring cell is larger by at least a threshold than the reception power of the data channel from the serving cell, selecting the candidate channel as a cell for which to perform interference cancellation.

    Method for receiving interference cancellation
    137.
    发明授权
    Method for receiving interference cancellation 有权

    公开(公告)号：US10164683B2

    公开(公告)日：2018-12-25

    申请号：US15326030

    申请日：2015-07-29

    Applicant: LG ELECTRONICS INC.

    Inventor： Yoonoh Yang ,  Sangwook Lee ,  Suhwan Lim ,  Manyoung Jung ,  Jinyup Hwang

    IPC: H04B1/7107 ,  H04J11/00 ,  H04L5/00 ,  H04W72/08

    Abstract: One disclosure of the present specification provides a method for receiving interference cancellation. The method for receiving interference cancellation can comprise: a step for cancelling, in signals received from a serving cell, cell-specific reference signals (CRS) from the serving cell, the CRS from a first primary interference cell, and the CRS from a second primary interference cell; a step for comparing the signal size of the serving cell, the signal size of the first primary interference cell, and the signal size of the second primary interference cell; a step for determining whether the CRS of the serving cell conflicts with the CRS of the first primary interference cell or the CRS of the second primary interference cell; and a step for canceling, when it is determined that the CRS' conflict with one other, data signals from the first primary interference cell and data signals from the second primary interference cell in the signals where the CRS are cancelled in the order determined according to the size comparison of signals.

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