公开(公告)号：US10237837B2

公开(公告)日：2019-03-19

申请号：US15327586

申请日：2015-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo

IPC: H04W56/00 ,  H04W48/16 ,  H04W72/04 ,  H04W88/02 ,  H04L5/00 ,  H04W8/00 ,  H04W76/14 ,  H04B7/26 ,  H04L27/26

Abstract: The present invention relates to a wireless communication system, more particularly, to a method for transmitting and receiving a synchronization signal by a transmission terminal in a wireless communication system supporting device-to-device (D2D) communication. A method for transmitting a synchronization signal according to an embodiment of the present invention comprises the steps of: mapping a first synchronization signal for a discovery signal to a first sub-frame and transmitting the first synchronization signal in the first sub-frame; mapping a second synchronization signal for a communication signal to a second sub-frame and transmitting the second synchronization signal in the second sub-frame, Herein, the first synchronization signal and the second synchronization signal can be distinguished on the basis of the mapped symbol position or sequence in the sub-frame.

公开(公告)号：US10237814B2

公开(公告)日：2019-03-19

申请号：US15524433

申请日：2015-11-06

Applicant: LG Electronics Inc.

Inventor： Sunghoon Jung ,  Hanbyul Seo

IPC: H04L12/28 ,  H04W48/16 ,  H04W72/02 ,  H04W72/04 ,  H04W76/27 ,  H04W52/34 ,  H04J1/16

Abstract: Provided are a method for transmitting a device-to device (D2D) discovery message performed by a terminal in a wireless communication system, and a terminal using said method. The method determines individual range classes for a plurality of D2D discovery resource pools; selects a D2D discovery resource pool having a higher ranger class when it is not possible to find a D2D resource pool having the same range class as the range class of the D2D discovery message from the plurality of D2D discovery resource pools; and transmits the D2D discovery message using the selected D2D discovery resource pool.

公开(公告)号：US10212676B2

公开(公告)日：2019-02-19

申请号：US15021244

申请日：2014-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Jihyun Lee

IPC: H04W56/00 ,  H04L5/00 ,  H04W72/04

Abstract: The present invention relates to a method for receiving a synchronization reference signal for device-to-device (D2D) communication by a first terminal in a wireless communication system and an apparatus therefor. More specifically, the present invention comprises a step of receiving a plurality of synchronization reference signals including a first synchronization reference signal and a second synchronization reference signal over a D2D synchronization reference signal transmission cycle, wherein the first synchronization reference signal is transmitted by a cluster head for D2D communication and the second synchronization reference signal is transmitted by a second terminal that belongs to a cluster for the D2D communication.

公开(公告)号：US10200214B2

公开(公告)日：2019-02-05

申请号：US15654101

申请日：2017-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo ,  Kijun Kim ,  Daewon Lee

IPC: H04L25/02 ,  H04L5/00 ,  H04B7/024 ,  H04B17/318 ,  H04J11/00 ,  H04L1/18 ,  H04L29/12 ,  H04W64/00 ,  H04W72/12 ,  H04W76/27 ,  H04B7/0417 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16

Abstract: A method is provided for computing a channel quality indicator (CQI) value by a user equipment in a wireless communication system. Channel status information-reference signal (CSI-RS) resources and zero power CSI-RS resources are configured through a higher layer. The CQI value is computed based on a channel measurement and an interference measurement. The channel measurement is performed by using the CSI-RS resources and the interference measurement is performed by using the zero power CSI-RS resources. If two CSI subframe sets are configured, the interference measurement for one CSI subframe set of the two CSI subframe sets is performed by using the zero power CSI-RS resources within a subframe subset belonging to the one CSI subframe set.

公开(公告)号：US10187903B2

公开(公告)日：2019-01-22

申请号：US15329040

申请日：2015-07-29

Applicant: LG Electronics Inc.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Byounghoon Kim ,  Hyukjin Chae

IPC: H04L1/18 ,  H04J11/00 ,  H04W72/04 ,  H04W72/12

Abstract: The present invention discloses a method for receiving a D2D signal of a D2D reception terminal in a wireless communication system. Specifically, the method comprises steps of: receiving a resource pool configuration for D2D communication; and, in accordance to whether or not under the fall-back mode of enhanced interference management for traffic adaptation (eIMTA), receiving a D2D signal from a D2D transmission terminal by means of at least one from among a first wireless resource or a second wireless resource within the resource pool configuration, wherein the first wireless resource is a wireless resource for which the use thereof is configured according to the system information block (SIB) uplink-downlink configuration and is not reconfigured by means of hierarchical signaling, and the second wireless resource is a wireless resource for which the use thereof according to the SIB uplink-downlink configuration is reconfigured by means of hierarchical signaling in the eIMTA mode.

公开(公告)号：US10178667B2

公开(公告)日：2019-01-08

申请号：US15328837

申请日：2015-07-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W72/04 ,  H04W16/14 ,  H04W74/08

Abstract: The present disclosure relates to a wireless access system supporting an unlicensed band, and provides a method for configuring a transmission opportunity period (TxOP) and devices for supporting the same. The method for configuring a TxOP in a wireless access system supporting an unlicensed band, according to one embodiment of the present disclosure, can comprise the steps of: performing a carrier sensing step for checking whether a secondary cell (SCell) constituted in an unlicensed band is in an idle state; transmitting a reservation signal for a predetermined amount of time if the SCell is in the idle state; and configuring a TxOP in the SCell. At this time, a start point of a first subframe (SF) included in the TxOP can be matched to a subframe, a slot or symbol boundary of a primary cell (PCell) constituted in a licensed band.

公开(公告)号：US10172128B2

公开(公告)日：2019-01-01

申请号：US15592651

申请日：2017-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong Kim ,  Hanbyul Seo ,  Kijun Kim

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

Abstract: A method for determining a starting symbol of a downlink control channel in a subframe including a plurality of symbols at a user equipment in a wireless communication system, the method includes receiving a parameter via a Radio Resource Control (RRC) layer signaling; and determining the starting symbol of the downlink control channel according to a type of the downlink control channel, wherein, if the downlink control channel is a first type, the starting symbol of the downlink control channel is determined to a first symbol of the subframe, and wherein, if the downlink control channel is a second type, the starting symbol of the downlink control channel is determined based on the parameter.

公开(公告)号：US10172108B2

公开(公告)日：2019-01-01

申请号：US15512709

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin Lee ,  Hanbyul Seo ,  Hyukjin Chae

IPC: H04W72/04 ,  H04W56/00 ,  H04J11/00 ,  H04L12/24 ,  H04W48/16 ,  H04W76/14 ,  H04L5/00 ,  H04W28/02 ,  H04W92/18 ,  H04W88/02

Abstract: A method is provided for transmitting a synchronization signal by a Device-to-Device (D2D) user equipment (UE). The UE receives discovery transmission pool configuration information and synchronization signal resource information, and transmits the synchronization signal based on the discovery transmission pool configuration information and the synchronization signal resource information. When a first subframe of a discovery transmission pool indicated by the discovery transmission pool configuration information corresponds to a subframe indicated by the synchronization signal resource information, the synchronization signal is transmitted in the first subframe of the discovery transmission pool. Otherwise, when the first subframe does not correspond to the indicated subframe, the synchronization signal is transmitted in a subframe positioned before the first subframe of the discovery transmission pool and nearest to the first subframe of the discovery transmission pool among subframes indicated by the synchronization signal resource information. The discovery transmission pool is periodically configured.

公开(公告)号：US10158472B2

公开(公告)日：2018-12-18

申请号：US14381517

申请日：2013-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo

IPC: H04L5/00 ,  H04L27/26

Abstract: The user equipment and the base station according to the present invention determine differently whether a downlink subframe is a valid reference resource for a channel state information report, in accordance with whether an interference measurement resource is explicitly configured to the user equipment.

公开(公告)号：US10154480B2

公开(公告)日：2018-12-11

申请号：US15099797

申请日：2016-04-15

Applicant: LG Electronics Inc.

Inventor： Hakseong Kim ,  Hanbyul Seo ,  Kijun Kim

IPC: H04W72/04 ,  H03M13/27 ,  H03M13/37 ,  H03M13/00 ,  H04L1/00 ,  H04L5/00 ,  H04J11/00 ,  H04W84/04 ,  H04W88/08

Abstract: A method and apparatus for transmitting and receiving a Relay Physical Downlink Control Channel (R-PDCCH) being a control channel for a relay node (RN) in a wireless communication system are disclosed. To transmit an R-PDCCH to a RN, a BS includes a processor for interleaving a predetermined number of Control Channel Elements (CCEs), mapping the interleaved CCEs to at least one Virtual Resource Block (VRB) configured for R-PDCCH transmission, mapping the at least one VRB to at least one Physical Resource Block (PRB), and a transmitter for transmitting the R-PDCCH to the RN through the at least one PRB.