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    Method and device for transmitting/receiving radio signal in wireless communication system
    622.
    发明授权
    Method and device for transmitting/receiving radio signal in wireless communication system 有权

    公开(公告)号：US11184908B2

    公开(公告)日：2021-11-23

    申请号：US16638032

    申请日：2018-08-10

    Applicant: LG Electronics Inc.

    Inventor： Changhwan Park ,  Seonwook Kim ,  Seokmin Shin ,  Joonkui Ahn ,  Suckchel Yang ,  Seunggye Hwang

    IPC: H04W72/12 ,  H04W4/80 ,  H04W72/04 ,  H04W4/02 ,  H04W4/70 ,  H04L27/26 ,  H04L5/00

    Abstract: The present invention relates to a wireless communication system, and specifically, to a method and a device therefor, the method comprising the steps of: repeatedly receiving a PDCCH including scheduling information, wherein the scheduling information includes time delay information; and repeatedly transmitting a PUSCH indicated by the scheduling information, after a time point indicated by the time delay information from the time point when the repeated receiving of the PDCCH ends, wherein a time resource in a time region includes a fixed DL time unit having a transmission direction fixed to a DL, and a time resource includes a fixed uplink (UL) time unit having a transmission direction fixed to a UL, and a floating time unit having a variable transmission direction, and the time point indicated by the time delay information is calculated on the basis of the fixed UL time unit.

    Method and apparatus for autonomous transmission
    625.
    发明授权
    Method and apparatus for autonomous transmission 有权

    公开(公告)号：US11115859B2

    公开(公告)日：2021-09-07

    申请号：US16636614

    申请日：2018-08-03

    Applicant: LG Electronics Inc.

    Inventor： Joonkui Ahn ,  Suckchel Yang ,  Seonwook Kim

    IPC: H04W72/00 ,  H04W28/04 ,  H04L1/18 ,  H04W16/14 ,  H04W72/04

    Abstract: A method and an apparatus for autonomous transmission in an unlicensed band are provided. The method and apparatus comprising: a wireless device receiving a semi-persistent scheduling (SPS) configuration for first uplink transmission, wherein the SPS configuration includes information regarding an SPS window indicating a time section in which the first uplink transmission is allowed; the wireless device receiving on a DL channel downlink control information (DCI) having an uplink grant that instructs second uplink transmission, wherein the uplink grant includes a second hybrid automatic repeat request process identifier (HARQid) for the second uplink transmission; and the wireless device performing the first uplink transmission in the SPS window when it is confirmed that a wireless medium is in an idle state by performing a listen before talk (LBT) in the SPS window, wherein a first HARQid for the first uplink transmission is not the same as the second HARQid.

    Method and device for performing LBT process on multiple carriers in wireless access system supporting unlicensed band
    627.
    发明授权
    Method and device for performing LBT process on multiple carriers in wireless access system supporting unlicensed band 有权

    公开(公告)号：US11109410B2

    公开(公告)日：2021-08-31

    申请号：US16598547

    申请日：2019-10-10

    Applicant: LG ELECTRONICS INC.

    Inventor： Seonwook Kim ,  Joonkui Ahn ,  Hanjun Park

    IPC: H04W16/14 ,  H04W74/08 ,  H04W72/14 ,  H04L5/00 ,  H04W72/12

    Abstract: The present invention relates to a wireless access system supporting an unlicensed band. According to this disclosure, a method by which a terminal performs LBT in a wireless access system supporting an unlicensed band and multiple carriers can comprise the steps of: receiving, from a base station, each of uplink grants for scheduling uplink channels on two or more component carriers (CCs); randomly selecting a first CC on which a first LBT is to be performed from among the two or more CCs; performing the first LBT on the selected first CC: and performing a second LBT on the remaining CCs among the two or more CCs, wherein the first LBT can be a random back-off-based LBT for performing a random back-off by a random back-off counter value, and the second LBT can be a channel sensing-based LBT for sensing a channel during a predetermined time interval before uplink transmission.

    Method for transmitting and receiving random access preamble in wireless communication system and apparatus therefor
    629.
    发明授权
    Method for transmitting and receiving random access preamble in wireless communication system and apparatus therefor 有权

    公开(公告)号：US11096222B2

    公开(公告)日：2021-08-17

    申请号：US16578106

    申请日：2019-09-20

    Applicant: LG Electronics Inc.

    Inventor： Seokmin Shin ,  Changhwan Park ,  Seonwook Kim ,  Joonkui Ahn ,  Daesung Hwang

    IPC: H04W74/08 ,  H04W74/00

    Abstract: Disclosed are a method for transmitting a random access preamble in a wireless communication system supporting a narrowband-Internet of things (NB-IoT) and an apparatus therefor. Specifically, the method performed by the terminal may include: receiving, from a base station, first configuration information for a first random access preamble and second configuration information for a second random access preamble; transmitting, to the base station, the first random access preamble by using the first configuration information; and transmitting, to the base station, the second random access preamble based on the second configuration information, when transmission of the first random access preamble satisfies a predetermined criterion, in which any one of the first random access preamble and the second random access preamble may be generated based on a sequence in which all elements are not configured to 1.

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