公开(公告)号：US20200037369A1

公开(公告)日：2020-01-30

申请号：US16593632

申请日：2019-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Suckchel YANG ,  Joonkui AHN ,  Yunjung YI ,  Hyangsun YOU ,  Bonghoe KIM

IPC: H04W74/08 ,  H04W4/70 ,  H04W72/04 ,  H04W72/12

Abstract: A method for performing a random access procedure in a wireless communication system supporting coverage enhancement, the method including performed by a user equipment (UE), determining a coverage enhancement level required for the UE; repeatedly transmitting a physical random access channel (PRACH) signal based on the determined coverage enhancement level; and monitoring a physical downlink control channel (PDCCH) candidates for a random access response (RAR) in response to the PRACH signal, wherein the PDCCH candidates for the RAR are determined based on the coverage enhancement level required for the UE.

公开(公告)号：US20190327752A1

公开(公告)日：2019-10-24

申请号：US16457155

申请日：2019-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Seonwook KIM ,  Joonkui AHN ,  Seungmin LEE ,  Kijun KIM ,  Suckchel YANG ,  Hanbyul SEO ,  Jonghyun PARK ,  Hyangsun YOU

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04W16/14 ,  H04W24/10

Abstract: A method for transmitting channel state information (CSI) by a user equipment in a wireless communication system is discussed. The method includes receiving a transmission burst; measuring the CSI based on the transmission burst; and transmitting the measured CSI, wherein the transmission burst is received in at least a first time resource and a second time resource, wherein the first time resource is configured as a first number of orthogonal frequency divisional multiplexing (OFDM) symbols, wherein the second time resource is configured as a second number of OFDM symbols, wherein the first number is smaller than the second number, and wherein the first time resource is considered to be an invalid time resource for the CSI.

公开(公告)号：US20190297601A1

公开(公告)日：2019-09-26

申请号：US16306507

申请日：2017-06-01

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Eunsun KIM ,  Suckchel YANG ,  Yunjung YI

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26

Abstract: A user equipment attempts to decode decoding candidates and detects a physical downlink control channel (PDCCH) within time symbols from time symbol #0 to time symbol #N−1 for downlink control channel transmission in a transmission time interval (TTI). The user equipment receives downlink data on the basis of downlink control information carried by the PDCCH. Each of time symbol #0 to time symbol #N−1 includes a floor(X/N) number of decoding candidates. N is a maximum number of time symbols available for downlink control channel transmission in the TTI and is equal to or smaller than N, and X is a maximum number of decoding candidates for each TTI.

公开(公告)号：US20190253291A1

公开(公告)日：2019-08-15

申请号：US16397737

申请日：2019-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Kijun KIM ,  Yunjung YI

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2602 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0082

Abstract: A method and apparatus for transmitting/receiving a downlink channel in a wireless communication system are provided. A downlink control channel and a downlink data channel corresponding to the downlink control channel are transmitted/received within a transmission time interval (TTI). A reference signal (RS) of an antenna port used for transmission of both the downlink control channel and the downlink data channel is transmitted/received on an OFDM symbol with the downlink control channel, and an RS of an antenna port used only for transmission of the downlink data channel is transmitted in the remaining OFDM symbol(s) of the TTI.

公开(公告)号：US20180376497A1

公开(公告)日：2018-12-27

申请号：US15747028

申请日：2016-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Yunjung YI ,  Kijun KIM ,  Ilmu BYUN

IPC: H04W72/12 ,  H04W72/04 ,  H04W72/14 ,  H04L5/00 ,  H04W74/08

Abstract: Provided are method and device for transmitting/receiving control information. A downlink grant can comprise information indicating whether or not an uplink grant is transmitted in the same subframe. If the information indicates that an uplink grant exists, a user equipment attempts detection of the uplink grant in the same subframe in which the downlink grant is received. If not, the user equipment does not attempt detection of the uplink grant. For low latency, the subframe can be shorter than an existing subframe.

公开(公告)号：US20180375636A1

公开(公告)日：2018-12-27

申请号：US16063202

申请日：2017-01-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Yunjung YI

IPC: H04L5/00 ,  H04W72/04 ,  H04W74/08 ,  H04L1/18

Abstract: A method and apparatus for transmitting/receiving a downlink channel in a wireless communication system are provided. A physical downlink control channel (PDCCH) can be transmitted using one or more resource element groups (REGs) among a plurality of REGs in a transmission time interval (TTI). Each of the plurality of REGs occupies 12 consecutive resource elements (REs) belonging to a physical resource block (PRB) along a frequency domain within an orthogonal frequency division multiplexing (OFDM) symbol with or without a reference signal (RS) in the TTI.

公开(公告)号：US20180206266A1

公开(公告)日：2018-07-19

申请号：US15741707

申请日：2015-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Ilmu BYUN ,  Joonkui AHN ,  Kijun KIM ,  Heejeong CHO ,  Genebeck HAHN ,  Eunjong LEE ,  Hyangsun YOU ,  Yunjung YI

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W72/14

CPC classification number: H04W72/1289 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04W72/0406 ,  H04W72/0446 ,  H04W72/1278 ,  H04W72/14

Abstract: Provided are a method and an apparatus for performing communication in a wireless communication system. Specifically, a control channel element is configured by using a resource element group in the same symbol of a resource block. The resource element group includes a plurality of resource elements in the same symbol. The resource block is transmitted in units of sTTIs which is set to be shorter than TTI. A control channel corresponding to the control channel element, and a data channel scheduled by the control channel are configured. The control channel and the data channel are transmitted in different frequency bands. Data is transmitted through the data channel.

公开(公告)号：US20180167923A1

公开(公告)日：2018-06-14

申请号：US15891743

申请日：2018-02-08

Applicant: LG Electronics Inc.

Inventor： Suckchel YANG ,  Yunjung YI ,  Hyangsun YOU ,  Joonkui AHN

IPC: H04W72/04 ,  H04L27/26 ,  H04W4/70 ,  H04W48/16 ,  H04W56/00 ,  H04W72/00

CPC classification number: H04W72/042 ,  H04L27/2627 ,  H04W4/70 ,  H04W48/16 ,  H04W56/0015 ,  H04W72/005

Abstract: The present invention relates to a wireless communication system. In particular, the present invention relates to a method and an apparatus for receiving data, by a terminal, in a wireless communication system, the method comprising the steps of: receiving a PDCCH; receiving a PDSCH corresponding to the PDCCH in a subframe including CSI-RS resource available in a cell; and demodulating the PDSCH. If a predetermined condition is satisfied, demodulation of the PDSCH is performed on the assumption that the PDSCH is not transmitted in the CSI-RS resource available in the cell, and if the predetermined condition is not satisfied, the demodulation of the PDSCH is performed on the assumption that the PDSCH can be transmitted in the CSI-RS resources available in the cell.

公开(公告)号：US20180098239A1

公开(公告)日：2018-04-05

申请号：US15565895

申请日：2016-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Yunjung YI ,  Suckchel YANG ,  Hanbyul SEO

IPC: H04W28/02 ,  H04W48/12 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04L1/1854 ,  H04L5/001 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0069 ,  H04L5/0082 ,  H04L5/0091 ,  H04L27/26 ,  H04W28/0215 ,  H04W48/12 ,  H04W48/16 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1205 ,  H04W72/1273

Abstract: The disclosure of the present specification provides a method for receiving a physical downlink shared channel (PDSCH) on a low-capability (LC) or low-cost (LC) device. The method may comprise the steps of: receiving repetition of a downlink control channel in the case that the LC device is set to coverage enhancement (CE); determining a last subframe where the reception is terminated; and determining a start subframe for receiving the repetition of the PDSCH on the basis of the last subframe. The reception of the PDSCH starts at the k-th effective subframe after subframe n, and the subframe n may be the last subframe where the reception of the downlink control channel is terminated. K is greater than or equal to 2, and the effective subframe may be predetermined.

公开(公告)号：US20180084572A1

公开(公告)日：2018-03-22

申请号：US15563109

申请日：2016-03-03

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Hanbyul SEO ,  Yunjung YI

IPC: H04W72/12 ,  H04L5/14 ,  H04W72/04

CPC classification number: H04W72/1289 ,  H04L5/0053 ,  H04L5/14 ,  H04W72/042 ,  H04W72/0446

Abstract: The present disclosure provides a method for receiving a physical downlink shared channel (PDSCH), the method being performed by a wireless device. The method may comprise the steps of determining the number of physical resource blocks (PRBs); and determining a transport block size (TBS) within the PDSCH on the basis of the determined number of the PRBs, wherein when the wireless device is an LC device or when the wireless device is set to CE so that the PDSCH is repeatedly received on a plurality of subframes, the number of PRBs used for determining the TBS can be calculated to be the same as the total number of PRBs that have been actually allocated for the PDSCH, regardless of whether the PDSCH is received in a TDD special subframe.