公开(公告)号：US10200176B2

公开(公告)日：2019-02-05

申请号：US15589077

申请日：2017-05-08

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo ,  Hakseong Kim ,  Inkwon Seo ,  Byounghoon Kim ,  Kijun Kim ,  Daewon Lee

IPC: H04L5/00 ,  H04J11/00 ,  H04W72/04 ,  H04W4/06 ,  H04W72/12 ,  H04W84/04

Abstract: A method of a first cell for supporting a downlink channel demodulation at a user equipment, the method includes transmitting, by the first cell to the user equipment via a higher layer signaling, information on a Cell-specific Reference Signal (CRS) of a second cell including Multicast/Broadcast over Single Frequency Network (MBSFN) subframe configuration information of the second cell; and transmitting, by the first cell to the user equipment, a downlink signal on the downlink channel, wherein the information on the CRS of the second cell is used by the user equipment to demodulate the downlink channel from the first cell.

公开(公告)号：US20190021019A1

公开(公告)日：2019-01-17

申请号：US16069454

申请日：2016-12-26

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04W24/10 ,  H04W24/02 ,  H04W72/08 ,  H04B17/318 ,  H04L12/26 ,  H04W72/12

Abstract: A method for measuring and reporting a D2D resource by a terminal that supports D2D communication according to an embodiment of the present invention comprises the steps of: measuring a resource usage rate of a first link that is being used by the terminal for D2D communication; transmitting a measurement report including the measured resource usage rate to a base station when the measured resource usage rate exceeds a first threshold value or less than a second threshold value; and receiving resource reallocation information for offloading the D2D communication, from the base station, wherein the resource reallocation information includes probability values indicating probabilities that the first link and the second link, which is configured in a resource different from that of the first link, will be used for the D2D communication, respectively. The terminal may offload the D2D communication performed in the first link onto the second link when the second link is selected through a link selection performed on the basis of the probability values.

公开(公告)号：US10122481B2

公开(公告)日：2018-11-06

申请号：US14782561

申请日：2014-04-16

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Seungmin Lee ,  Hanbyul Seo

IPC: H04W72/04 ,  H04W72/00 ,  H04L5/00 ,  H04B17/382 ,  H04B7/06 ,  H04W72/08 ,  H04W72/14 ,  H04W24/10 ,  H04L5/14

Abstract: One embodiment of the present invention provides a method for reporting channel state information (CSI) of a terminal in a wireless communication system, comprising the steps of: receiving a downlink signal comprising an uplink grant; when a CSI request field contained in the downlink signal triggers a CSI report, deriving a CQI value on the basis of a PDSCH transmission block in a CSI reference resource; and carrying out a CSI report including the CQI value in subframe n, wherein the CSI reference resource is the last subframe that is not later than a subframe which is four subframes before subframe n.

公开(公告)号：US10104533B2

公开(公告)日：2018-10-16

申请号：US15525000

申请日：2015-11-13

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo

IPC: G01R31/08 ,  H04W8/00 ,  H04W24/10 ,  H04W48/16 ,  H04L27/26 ,  H04W56/00 ,  H04W8/22 ,  H04W88/02 ,  H04W88/08 ,  H04W88/04

Abstract: A method for transmitting a signal by device to device (D2D) user equipment (UE) supporting D2D communication, according to one embodiment of the present invention, comprises the steps of: receiving, from a base station, a message which requests reporting of the UE category of the D2D UE; and reporting the D2D UE category for a D2D operation of the D2D UE, which is set independently of the UE category for communication with the base station, wherein the D2D UE category is set on the basis of the number of fast Fourier transform (FFT) operations for asynchronous D2D links which the D2D UE can simultaneously process, and the data rate for the asynchronous D2D links which the D2D UE can process per unit time.

公开(公告)号：US10090986B2

公开(公告)日：2018-10-02

申请号：US14913294

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae Kim ,  Suckchel Yang ,  Hanbyul Seo ,  Kijun Kim ,  Jonghyun Park ,  Hyukjin Chae ,  Inkwon Seo

IPC: H04L5/00 ,  H04B7/0413 ,  H04B7/06 ,  H04L12/18 ,  H04W72/04 ,  H04B7/0456 ,  H04B7/10 ,  H04W72/00

Abstract: The present invention discloses a method and an apparatus for transmitting a reference signal in a wireless communication system. More specifically, the method comprises configuring a first antenna group on the basis of a plurality of antenna elements configured by a horizontal domain antenna element and a vertical domain antenna element; transmitting a configuration with regard to a specific sub frame to first terminals through a first antenna group; receiving a sounding reference signal (SRS) through the specific sub frame from the first terminals; selecting at least one second terminal among the first terminals on the basis of the sounding reference signal; and transmitting a channel state information-reference signal (CSI-RS) with respect to the at least one second terminal, wherein the specific sub frame is characterized in that at least a part of a source area is configured by a multicast broadcast single frequency network (MBSFN) sub frame.

公开(公告)号：US10080206B2

公开(公告)日：2018-09-18

申请号：US14964158

申请日：2015-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04W56/00 ,  H04W76/02 ,  H04W76/23 ,  H04W76/14

CPC classification number: H04W56/0015 ,  H04W76/14 ,  H04W76/23

Abstract: According to one embodiment of the present invention, a method of selecting a synchronization source, which is selected by a D2D (device-to-device) UE in a wireless communication system includes the steps of receiving a plurality of synchronization signals, selecting a plurality of candidate synchronization signals from a plurality of the synchronization signals and determining a synchronization signal in a manner of applying a priority to a plurality of the candidate synchronization signals and selecting a UE, which has transmitted the determined synchronization signal, as a synchronization source. In this case, the application of the priority can be performed in a manner of sequentially applying a plurality of priorities related to a D2D signal according to a priority for the application of the priority.

公开(公告)号：US10039030B2

公开(公告)日：2018-07-31

申请号：US15558046

申请日：2016-04-21

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Kijun Kim ,  Hyungtae Kim

IPC: H04J11/00 ,  H04W72/04 ,  H04W28/04 ,  H04L1/18 ,  H04W52/24 ,  H04L1/00 ,  H04W72/08 ,  H04W74/08

CPC classification number: H04W28/04 ,  H04J11/004 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1896 ,  H04L1/20 ,  H04W52/243 ,  H04W52/48 ,  H04W72/082 ,  H04W74/0833

Abstract: A method for receiving signals by a first terminal in a wireless communication system supporting non-orthogonal multiple access (NOMA), according to one embodiment of the present invention, comprises the steps of: obtaining downlink control information with respect to a second terminal which is NOMA-paired with the first terminal; receiving NOMA signals in which a first physical downlink shared channel (PDSCH) with respect to the first terminal and a second PDSCH with respect to the second terminal are multiplexed by different transmission power values; and removing interference by the second PDSCH from the NOMA signals on the basis of the downlink control information with respect to the second terminal. In the step of removing the interference by the second PDSCH, if the second PDSCH is re-transmitted to the second terminal by an HARQ process, the interference by the second PDSCH can be removed by reusing predetermined information obtained by the first terminal at the time of initial transmission with respect to the HARQ process.

公开(公告)号：US20180160409A1

公开(公告)日：2018-06-07

申请号：US15872819

申请日：2018-01-16

Applicant: LG Electronics Inc.

Inventor： Jonghyun Park ,  Inkwon Seo ,  Hanbyul Seo ,  Kijun Kim ,  Suckchel Yang

IPC: H04W72/04 ,  H04W76/11 ,  H04W4/06 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/00 ,  H04L5/0007 ,  H04L5/0035 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0091 ,  H04L12/1881 ,  H04W4/06 ,  H04W72/0446 ,  H04W72/12 ,  H04W76/10 ,  H04W76/11

Abstract: The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for transmitting or receiving a downlink signal by considering an antenna port relationship. A method for user equipment receiving a physical downlink shared channel (PDSCH) signal in the wireless communication system, according to one embodiment of the present invention, comprises the steps of: determining a start symbol index of the PDSCH from a downlink subframe; and receiving the PDSCH signal based on the start symbol index, wherein the PDSCH can be scheduled by means of downlink control information (DCI) which is received through a physical downlink control channel (PDCCH) or an enhanced PDCCH (EPDCCH). When the DCI is comprised according to DCI format 1A, which is transmitted through the EPDDCH, and the downlink subframe is a non-multicast broadcast single frequency network (MBSFN) subframe, the start symbol index can be determined depending on an EPDCCH start symbol value which is established by an upper layer.

公开(公告)号：US09986454B2

公开(公告)日：2018-05-29

申请号：US15027947

申请日：2014-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Inkwon Seo

IPC: H04W72/04 ,  H04L5/00 ,  H04W24/08 ,  H04B17/345 ,  H04W72/08

CPC classification number: H04W24/08 ,  H04B17/345 ,  H04L5/0048 ,  H04W72/042 ,  H04W72/082

Abstract: The present invention relates to a method and an apparatus for a terminal to perform interference measurement in a wireless communication system. More specifically, the method comprises the steps of: receiving a first interference measurement resource setting and a second interference measurement resource setting for one channel state estimation process (Channel State Information Process); and performing interference measurement on an interference measurement resource based on the first interference measurement resource setting and the second interference measurement resource setting, wherein the first interference measurement resource setting is set for an aggregation of first downlink subframes, in which the use of a wireless resource is set not to be changed by a repurposing message, and the second interference measurement resource setting is set for an aggregation of second downlink subframes, in which the use of the wireless resource is set not to be changed by the repurposing message.

公开(公告)号：US09985761B2

公开(公告)日：2018-05-29

申请号：US15116142

申请日：2015-02-26

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo ,  Kijun Kim ,  Hyukjin Chae ,  Seungmin Lee

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/08 ,  H04L25/02 ,  H04W72/04 ,  H04W88/02

CPC classification number: H04L5/0048 ,  H04L5/00 ,  H04L5/0094 ,  H04L25/02 ,  H04L25/0202 ,  H04L27/26 ,  H04W72/0446 ,  H04W72/085 ,  H04W88/02

Abstract: One embodiment of the present invention discloses a method by which a terminal receives a device-to-device (D2D) signal in a wireless communication system, the D2D signal receiving method comprising the steps of: receiving a subframe; receiving a first reference signal in a preset symbol of the subframe; and receiving reference signal pattern information in a symbol neighboring the preset symbol on the basis of the received reference signal, wherein if the reference signal pattern information indicates the transmission of a second reference signal, the terminal performs a linear interpolation during a channel estimation for a D2D signal demodulation in the subframe.