公开(公告)号：US10187883B2

公开(公告)日：2019-01-22

申请号：US15817943

申请日：2017-11-20

Applicant: LG ELECTRONICS INC.

Inventor： Dongyoun Seo ,  Hakseong Kim ,  Joonkui Ahn ,  Hyukjin Chae ,  Hanbyul Seo

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04W52/34 ,  H04B1/707 ,  H04J13/00

Abstract: A method and corresponding apparatus, where the apparatus transmits, to a user equipment (UE), downlink control information (DCI) including a downlink assignment index (DAI) through an enhanced physical downlink control channel (E-PDCCH). The DCI transmitted through the E-PDCCH includes an additional field which is not present in DCI transmitted through a physical downlink control channel (PDCCH). If the DAI value included in the DCI is greater than 1, the additional field is used to determine a single resource for the ACK/NACK among the plurality of PUCCH resources configured by a higher layer signal.

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：US10171212B2

公开(公告)日：2019-01-01

申请号：US15303894

申请日：2015-07-03

Applicant: LG Electronics Inc.

Inventor： Hanjun Park ,  Kijun Kim ,  Hyungtae Kim ,  Jonghyun Park ,  Hyukjin Chae

IPC: H04B7/00 ,  H04L5/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/0456

Abstract: A method for reporting a channel state on a downlink channel transmitted through M antenna ports that are 2-dimensionally arranged according to an embodiment of the present invention may be performed by a terminal and include a step of receiving a channel state information-reference signal (CSI-RS) setting for N virtual antenna ports that are formed by applying beam-forming to a group of vertical antennas of the 2-dimensionally arranged M antenna ports, and a step of calculating channel state information on the downlink channel by using the received CSI-RS setting to report the channel state information to a serving cell, wherein the reported channel state information may include information on a rotational transformation related to a first code word of a codebook related to a combination of Q unit vectors that are orthogonal in an N dimension space.

公开(公告)号：US10153890B2

公开(公告)日：2018-12-11

申请号：US15318645

申请日：2015-06-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Youngtae Kim

IPC: H04L5/00 ,  H04W72/04 ,  H04W92/18 ,  H04W8/00

Abstract: A device to device (D2D) signal transmission method in which a D2D terminal transmits a D2D signal in a wireless communication system according to one embodiment of the present invention comprises the steps of: defining a time-frequency resource range in which the D2D signal is to be transmitted in a subframe; and transmitting the D2D signal through the defined time-frequency resource range, wherein the frequency resource range in which the D2D signal is to be transmitted in the subframe includes a first frequency resource range and a second frequency resource range, positions of the first frequency resource range and the second frequency resource range are defined by an independent parameter, and dimensions of the first frequency resource range and the second frequency resource range are defined by a common parameter.

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：US10057932B2

公开(公告)日：2018-08-21

申请号：US15025510

申请日：2014-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hakseong Kim

IPC: H04W76/14 ,  H04W72/14 ,  H04W72/04 ,  H04L1/18 ,  H04W76/02

CPC classification number: H04W76/14 ,  H04L1/1819 ,  H04L1/1854 ,  H04L1/1887 ,  H04W72/0446 ,  H04W72/14

Abstract: An embodiment of the present invention provides a method for a terminal for transceiving a device-to-device (D2D) signal in a wireless communication system, the method for transceiving a D2D signal comprising: receiving an uplink grant; and performing uplink transmission in one or more subframes containing a fourth subframe from the subframe in which the uplink grant has been received, wherein if the uplink transmission is a transmission of a redundancy version from two or more subframes corresponding to a single bundle, the terminal receives a PHICH from the uplink transmission from any one from among the sixth subframe or the 16th subframe from the final subframe from among the two or more subframes.

公开(公告)号：US10038520B2

公开(公告)日：2018-07-31

申请号：US15622610

申请日：2017-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo

IPC: H04L1/16 ,  H04J1/02 ,  H04W72/04 ,  H04L5/00 ,  H04W76/14

CPC classification number: H04L1/1614 ,  H04J1/02 ,  H04L5/0007 ,  H04L5/0033 ,  H04L5/0053 ,  H04W72/0446 ,  H04W76/14

Abstract: According to an embodiment of the present invention, a method for transmitting Device-to-Device (D2D) data by a User Equipment (UE) in a wireless communication system, the method comprising: determining a bitmap to be applied to a subframe pool for data transmission from a subframe indicator bitmap; determining a set of subframes to transmit D2D data by using the bitmap to the subframe pool for data transmission; and transmitting D2D data in a subframe included in the determined subframe set, wherein a set of values available as k being the number of 1s in the subframe indicator bitmap are changed according to a Uplink/Downlink (UL/DL) configuration set to which a UL/DL configuration configured for the UE belongs.

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.

公开(公告)号：US09967829B2

公开(公告)日：2018-05-08

申请号：US15584880

申请日：2017-05-02

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Suckchel Yang ,  Inkwon Seo ,  Hyukjin Chae

IPC: H04W52/14 ,  H04W72/04 ,  H04L5/00 ,  H04W36/00 ,  H04W52/24 ,  H04W24/08 ,  H04W40/24 ,  H04W48/14 ,  H04W52/16 ,  H04L5/14

CPC classification number: H04W52/146 ,  H04L5/0091 ,  H04L5/14 ,  H04W24/08 ,  H04W36/0083 ,  H04W40/246 ,  H04W48/14 ,  H04W52/16 ,  H04W52/243 ,  H04W52/325 ,  H04W52/36 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/1278

Abstract: The present invention relates to a method of transmitting uplink control information (UCI), which is transmitted by a user equipment in a wireless communication system. In particular, the method includes the steps of receiving first offset information associated with uplink control information (UCI) transmission in uplink subframes according to uplink-downlink configuration of a serving cell and receiving a power control parameter configuring a first uplink power control subframe set and a second uplink power control subframe set for the uplink subframes. In this case, the first uplink power control subframe set and the second uplink power control subframe set are configured to be independently applied by an offset for transmitting the uplink control information.