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公开(公告)号：US10716149B2
公开(公告)日：2020-07-14
申请号：US16073449
申请日：2017-01-26
Applicant: LG ELECTRONICS INC.
Inventor： Joonkui Ahn , Kijun Kim , Byounghoon Kim , Suckchel Yang , Hanjun Park , Yunjung Yi , Seonwook Kim
Abstract: Provided are a method of performing a random access procedure in an unlicensed band and a device using the method. The device performs a clear channel assessment (CCA) during a random access preamble (RAP) window in the unlicensed band. If the CCA succeeds, the wireless device transmits a plurality of RAPs. The plurality of RAPs are repeatedly transmitted in a frequency domain or a time domain.
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公开(公告)号：US10716139B2
公开(公告)日：2020-07-14
申请号：US15573450
申请日：2016-05-12
Applicant: LG ELECTRONICS INC.
Inventor： Seonwook Kim , Joonkui Ahn , Suckchel Yang , Kijun Kim , Byounghoon Kim , Hanbyul Seo , Hanjun Park , Daesung Hwang
Abstract: The present invention relates to a wireless access system that supports an unlicensed band, and provides various methods for adjusting a contention window size and devices for supporting the same. As an embodiment of the present invention, a method for adjusting a contention window size (CWS) in a wireless access system supporting an unlicensed band may comprise the steps of: performing a channel access procedure; when, as a result of performing the channel access procedure, it is determined that a serving cell (Scell) in the unlicensed band is in an idle state, transmitting a transmission burst including a downlink signal; receiving HARQ-ACK information corresponding to the transmission burst; and adjusting the CWS on the basis of the HARQ-ACK information corresponding to the first subframe of the transmission burst.
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263.发明授权公开(公告)号：US10715372B2
公开(公告)日：2020-07-14
申请号：US16308417
申请日：2017-06-07
Applicant: LG ELECTRONICS INC.
Inventor： Seokmin Shin , Hanjun Park , Hyunsoo Ko , Kijun Kim , Byounghoon Kim , Eunsun Kim
IPC: H04L27/26
Abstract: The present invention discloses a method for obtaining information for a cyclic prefix (CP) in a wireless communication system by a terminal and a device for the same. Specifically, a method for obtaining information for a cyclic prefix (CP) in a wireless communication system by a terminal includes: detecting a specific synchronization signal received from a base station via a first symbol of a first subframe; detecting the specific synchronization signal received from the base station via a second symbol of a second subframe; and obtaining information for the CP applied to transmission of the specific synchronization signal based on an offset value between an index of the first symbol and an index of the second symbol.
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264.发明授权公开(公告)号：US10708910B2
公开(公告)日：2020-07-07
申请号：US16073473
申请日：2017-02-06
Applicant: LG ELECTRONICS INC.
Inventor： Hanjun Park , Yunjung Yi , Eunsun Kim , Suckchel Yang , Hyunho Lee , Daesung Hwang
Abstract: Disclosed are a method for transmitting a sounding reference signal to a base station by a terminal and an apparatus for supporting the same. Particularly, disclosed is a sounding reference signal transmission method comprising: determining a transmission time point of a first SRS within a first TTI, which has a length shorter than the length of one subframe, on the basis of the first TTI; and transmitting the first SRS at the determined transmission time point, wherein a frequency resource at which the first SRS is transmitted is configured independently from a frequency resource at which a second SRS based on a second TTI having a length corresponding to the length of one subframe is transmitted.
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公开(公告)号：US10681744B2
公开(公告)日：2020-06-09
申请号：US16242804
申请日：2019-01-08
Applicant: LG ELECTRONICS INC.
Inventor： Seonwook Kim , Joonkui Ahn , Suckchel Yang , Kijun Kim , Byounghoon Kim , Hanbyul Seo , Hanjun Park , Daesung Hwang
Abstract: The present invention relates to a wireless access system that supports an unlicensed band, and provides various methods for adjusting a contention window size, methods for determining the time when the adjusted contention window size is applied, methods for distinguishing between a collision and a channel error, and devices for supporting the same. As an embodiment of the present invention, a method for adjusting a contention window size in a wireless access system supporting an unlicensed band may comprise the steps of: performing a channel access procedure; when it is determined through the performed channel access procedure that a serving cell (Scell) in the unlicensed band is in an idle state, transmitting a transmission burst including a downlink signal through the unlicensed band; receiving hybrid automatic repeat and request acknowledgment (HARQ-ACK) information corresponding to the transmission burst; and adjusting the CWS using the number of DTX states in the HARQ-ACK information when the transmission burst is scheduled in a self-carrier scheduling scheme.
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Patent Agency Ranking
公开(公告)号：US10667253B2
公开(公告)日：2020-05-26
申请号：US16307456
申请日：2017-06-08
Applicant: LG ELECTRONICS INC.
Inventor： Daesung Hwang , Hyunho Lee , Hanjun Park , Yunjung Yi , Seungmin Lee
Abstract: Disclosed is a method for transmitting an uplink signal to a base station by a terminal in a wireless communication system. Specifically, the method comprises the steps of: detecting a downlink control signal from the base station through a terminal-specific search space or a common search space at a first time point; and transmitting an uplink signal corresponding to the downlink control signal to the base station on the basis of the downlink control signal, wherein, when the downlink control signal is detected in the terminal-specific search space, the uplink signal is transmitted at a second time point, and when the downlink control signal is detected in the common search space, the uplink signal is transmitted at a third time point.
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267.发明授权公开(公告)号：US10588113B2
公开(公告)日：2020-03-10
申请号：US16440449
申请日：2019-06-13
Applicant: LG Electronics Inc.
Inventor： Suckchel Yang , Hanjun Park , Seonwook Kim
Abstract: The present invention relates to a wireless communication system, and more particularly, to a method including receiving indication information related to a PUCCH resource set of a specific PUCCH format through system information, the PUCCH resource set comprising a first RB offset, receiving a PDCCH including a resource indicator RI through CCE, and transmitting the control information on the PUCCH, wherein an RB index of the PUCCH is determined based on the first RB offset and a second RB offset related to a first bit value of the RI, and wherein a CS index of the PUCCH is determined based on a combination of [a second bit value of the RI, a 1-bit value based on a starting CCE index of the PDCCH (hereinafter, a CCE-based 1-bit value)] in a CS index set, and an apparatus therefor.
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公开(公告)号：US10582408B2
公开(公告)日：2020-03-03
申请号：US16324796
申请日：2017-08-11
Applicant: LG Electronics Inc.
Inventor： Hanjun Park , Yunjung Yi
IPC: H04W24/10 , H04B17/318
Abstract: Disclosed are: a method for reporting reference signal measurement information for a secondary base station by a terminal, connected to both a master base station and the secondary base station according to a dual connectivity scheme, in a wireless communication system comprising the master base station and the secondary base station that is operated under the control of the master base station and employs multiple analog beams; and an apparatus supporting the same.
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269.发明授权公开(公告)号：US10581571B2
公开(公告)日：2020-03-03
申请号：US15770101
申请日：2016-10-21
Applicant: LG ELECTRONICS INC.
Inventor： Seonwook Kim , Joonkui Ahn , Kijun Kim , Jonghyun Park , Hanjun Park , Yunjung Yi
Abstract: The embodiments of the present invention relate to a wireless access system supporting an unlicensed band and to methods for generating a discovery signal (DRS), methods for generating and transmitting a channel state information reference signal included in the DRS, and devices for supporting same. The method for transmitting a discovery signal (DRS) including a channel state information reference signal (CSI-RS) in a wireless access system supporting an unlicensed band, according to one embodiment of the present invention, may comprise the steps of: initiating, in subframe n (SF #n), a listen-before-talk (LBT) procedure for checking whether the unlicensed band is idle or not; if an LBT procedure succeeds in SF #n+k, generating a sequence for transmitting the CSI-RS on the basis of the subframe index j indicating SF #j; and transmitting the DRS, including the CSI-RS, in SF #n+k. Herein n, k, and j are preferably integers greater than or equal to 0 and less than or equal to 9.
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公开(公告)号：US10568135B2
公开(公告)日：2020-02-18
申请号：US15573060
申请日：2016-05-12
Applicant: LG ELECTRONICS INC.
Inventor： Hanjun Park , Joonkui Ahn , Seonwook Kim
Abstract: One embodiment of the present invention relates to a method for channel sensing within an unlicensed band in a wireless communication system. The method is performed by a transmission node which performs the channel sensing, and may comprises the steps of: receiving, from a control node, a control signal including data transfer indication; receiving, from the control node, an indicator indicating an interval at which a channel-sensing related operation associated with the data transfer indication is performed; and performing the channel-sensing related operation for a length of time corresponding to the indicator before a data transfer start time according to the data transfer indication, or, on the basis of the time at which the control signal is received, from after a length of time corresponding to the indicator, until before the data transfer start time according to the data transfer indication.
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