公开(公告)号：US20200015252A1

公开(公告)日：2020-01-09

申请号：US16571357

申请日：2019-09-16

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Suckchel Yang ,  Kijun Kim ,  Byounghoon Kim ,  Hanbyul Seo ,  Hanjun Park ,  Daesung Hwang

IPC: H04W72/12 ,  H04W74/08 ,  H04W74/00

Abstract: The present invention relates to a wireless access system supporting an unlicensed band, various methods for adjusting a contention window size, methods for performing a carrier sensing process in a single engine and a multi-engine, and an apparatus supporting the same. As one embodiment of the invention, a method for adjusting a contention window size (CWS) in a wireless access system supporting an unlicensed band may comprise: a step of setting a contention window size (CWS) necessary for performing a channel access process for each of priority classes; a step of performing a channel access process for a particular priority class in a channel in an unlicensed band on the basis of the set CWS; a step of performing a downlink transmission related to the particular priority class if it is determined that the channel in the unlicensed band is in an idle state as a result of the channel access process; and a step of making adjustments for all CWS' of priority classes if a triggering event, which relates to a downlink transmission and increases or reduces the CWS for the particular priority class, occurs.

公开(公告)号：US10531486B2

公开(公告)日：2020-01-07

申请号：US15533953

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Hanjun Park ,  Joonkui Ahn ,  Suckchel Yang ,  Hanbyul Seo ,  Seonwook Kim ,  Seungmin Lee

IPC: H04W74/04 ,  H04W74/00 ,  H04W72/12 ,  H04L5/00 ,  H04W74/08

Abstract: A method for transmitting an uplink signal in an unlicensed band in a wireless communication system according to an embodiment of the present invention, which is performed by a terminal, may comprises the steps of: performing channel sensing for transmitting data and a sounding reference signal in a first time interval; transmitting the sounding reference signal in a second time interval immediately following the first time interval when a channel is in a non-occupied state according to a result of the channel sensing and transmission of the sounding reference signal is scheduled; and transmitting a preliminary signal or transmitting uplink data in the second time interval immediately following the first time interval when a channel is in a non-occupied state according to a result of the channel sensing and only transmission of the uplink data is scheduled.

公开(公告)号：US10531398B2

公开(公告)日：2020-01-07

申请号：US16196968

申请日：2018-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Dongyoun Seo ,  Yunjung Yi

IPC: H04W52/32 ,  H04W52/34 ,  H04W52/14 ,  H04L5/14 ,  H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04L1/18 ,  H04W52/28 ,  H04W52/36 ,  H04W52/58 ,  H04W88/02 ,  H04L1/16

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for a terminal controlling uplink power in the wireless communication system, comprising the steps of: configuring an uplink subframe (UL SF) of a first set and a UL SF of a second set; receiving a downlink control information (DCI) format including a bitmap for indicating transmit power control (TPC) for a plurality of terminals; and controlling transmit power of an uplink channel by using TPC information on the terminals from the bitmap, wherein the TPC information is used for controlling transmit power of an uplink channel transmitted from the UL SF of the first set when the DCI format comprises a first identifier, and the TPC information is used for controlling transmit power of an uplink channel transmitted from the UL SF of the second set when the DCI format comprises a second identifier.

公开(公告)号：US10523386B2

公开(公告)日：2019-12-31

申请号：US15628265

申请日：2017-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe Kim ,  Soocheol Kyeong ,  Kijun Kim ,  Byounghoon Kim ,  Jinwoo Kim ,  Kwangseok Noh ,  Ilmu Byun ,  Joonkui Ahn ,  Seunggye Hwang

IPC: H03M13/29 ,  H04L5/00 ,  H04L1/00 ,  H03M13/11

Abstract: A method for processing a data block by a user equipment in a wireless communication system comprises generating tail bits of 18 bits by performing trellis termination in a turbo encoder of code rate 1/5 containing a plurality of constituent encoders; and deploying the tail bits of 18 bits to 5 encoded bit sequences of the turbo encoder according to a prescribed rule, wherein 4 tail bits are deployed to a systematic bit sequence among the 5 encoded bit sequences according to the prescribed rule, and 4 tail bits are deployed to each of specific 2 parity bit sequences among 4 parity bit sequences according to the prescribed rule.

公开(公告)号：US10484852B2

公开(公告)日：2019-11-19

申请号：US16383103

申请日：2019-04-12

Applicant: LG Electronics Inc.

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

IPC: H04W4/80 ,  H04W72/04 ,  H04L5/00 ,  H04L5/14

Abstract: One disclosure of the present specification provides a method for receiving a downlink physical channel by a narrowband Internet of things (NB-IoT) device. The method may comprise the steps of: determining whether to receive a signal of a downlink physical channel from an NB-IoT cell, on a downlink pilot time slot (DwPTS) of a time division duplex (TDD) special subframe; and receiving the signal of the downlink physical channel on the TDD special subframe including the DwPTS, on the basis of the determination.

公开(公告)号：US10477565B2

公开(公告)日：2019-11-12

申请号：US15531306

申请日：2015-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook Kim ,  Joonkui Ahn ,  Seungmin Lee ,  Kijun Kim ,  Suckchel Yang ,  Hanbyul Seo ,  Jonghyun Park ,  Hyangsun You

IPC: H04W72/12 ,  H04B7/06 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10 ,  H04W16/14 ,  H04L27/26 ,  H04W74/08

Abstract: The present invention relates to a method for a terminal receiving an enhanced physical downlink control channel (EPDCCH) in a wireless access system supporting an unlicensed band, and the method may comprise the steps of: receiving, through an unlicensed-band cell (Ucell) configured in an unlicensed band, an EPDCCH comprising control information for scheduling the Ucell; and, on the basis of the control information, receiving downlink data from the Ucell. Here, if the EPDCCH is transmitted through a partial subframe (pSF), enhanced resource element groups (EREGs) constituting the EPDCCH are indexed from the start symbol of the pSF, and the pSF has a smaller size than one subframe, and the starting position of the pSF may not correspond to the subframe boundary of a primary cell (Pcell) configured in a licensed band.

公开(公告)号：US10462804B2

公开(公告)日：2019-10-29

申请号：US15329816

申请日：2015-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Yunjung Yi ,  Joonkui Ahn ,  Daesung Hwang

IPC: H04W72/12 ,  H04L5/00 ,  H04W48/16 ,  H04W72/04 ,  H04W74/08 ,  H04L12/24 ,  H04W16/14 ,  H04W88/10 ,  H04W88/08

Abstract: A method and apparatus for communicating with a long-term evolution in unlicensed spectrum (LTE-U) base station (BS) in a wireless communication system is provided. A user equipment (UE) receives a configuration of a potential transmission time unit (P-TTU), communicates with a first LTE-U BS of a first operator based on the configured P-TTU, and communicates with a second LTE-U BS of a second operator based on the configured P-TTU. The communication with the first LTE-U BS and the communication with the second LTE-U BS is multiplexed by time division multiplexing (TDM).

公开(公告)号：US10455525B2

公开(公告)日：2019-10-22

申请号：US15543190

申请日：2016-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel Yang ,  Joonkui Ahn ,  Daesung Hwang

IPC: H04W52/34 ,  H04W52/32 ,  H04L1/18 ,  H04W52/48 ,  H04W52/14

Abstract: The present invention relates to a wireless communication system. Specifically, the present invention relates to a method comprising: configuring a first cell group consisting of a PCell and zero or more SCells, and a second cell group consisting of SCell(s); determining transmit power of a first PUCCH to be transmitted through the PCell; and determining transmit power of a second PUCCH to be transmitted through a predetermined SCell in the second cell group, wherein the transmit powers of the first PUCCH and the second PUCCH are adjusted so that the total sum of transmit power of a terminal is not greater than the maximum transmit power of the terminal, considering a minimum guaranteed power which is assigned to each cell group according to protection priorities between cell groups, and the minimum guaranteed power assigned to each cell group is selectively applied to a specific UCI among a plurality of UCIs.

公开(公告)号：US10454605B2

公开(公告)日：2019-10-22

申请号：US15772772

申请日：2016-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui Ahn ,  Kijun Kim ,  Suckchel Yang ,  Hanjun Park ,  Seonwook Kim

IPC: H04J11/00 ,  H04L27/26 ,  H04L5/00 ,  H04W16/14 ,  H04W24/08 ,  H04W72/04 ,  H04W88/06 ,  H04L1/00

Abstract: Provided are a method for monitoring a control channel in an unlicensed band and an apparatus using the same. In an unlicensed cell, a user equipment (UE) monitors a physical downlink control channel (PDCCH) having burst control information in a search space defined in a control region of a subframe. The control region comprises a plurality of control channel elements (CCEs) starting from an index 0, and the search space is defined only in, from among the plurality of CCEs, first four CCEs and first eight CCEs.

公开(公告)号：US10448412B2

公开(公告)日：2019-10-15

申请号：US15543197

申请日：2016-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Suckchel Yang ,  Joonkui Ahn ,  Seonwook Kim

IPC: H04W72/08 ,  H04L1/00 ,  H04L5/00 ,  H04W48/10 ,  H04W24/08 ,  H04W36/30 ,  H04W48/16 ,  H04W72/04 ,  H04W76/27 ,  H04W72/12 ,  H04W24/10 ,  H04J11/00 ,  H04W48/12 ,  H04W36/00 ,  H04W28/06

Abstract: Provided are a method whereby user equipment (UE) receives downlink control information in a wireless communication system and UE using the method. The method comprises: receiving configuration information (MUCC-DCI configuration information) on multi-carrier downlink control information (MUCC-DCI) that may include pieces of scheduling information related to multiple serving cells; and performing blind decoding (BD) on the MUCC-DCI in a shared search space (shared SS) determined on the basis of the MUCC-DCI configuration information.