公开(公告)号：US09888450B2

公开(公告)日：2018-02-06

申请号：US14970203

申请日：2015-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Inkwon Seo

IPC: H04W56/00 ,  H04W76/02 ,  H04W24/00 ,  H04W52/02 ,  H04W92/18

CPC classification number: H04W56/001 ,  H04W24/00 ,  H04W52/0216 ,  H04W52/0219 ,  H04W76/14 ,  H04W92/18 ,  Y02B70/30 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/23

Abstract: A method of detecting a synchronization signal at a device-to-device (D2D) user equipment (UE) in a wireless communication system includes receiving a primary sidelink synchronization signal (PSSS), determining a normalized carrier frequency offset (CFO) from an initial CFO, determining hypothesis test levels from the normalized CFO, and performing correlation using the received PSSS, a first sequence, a second sequence, a first sequence shifted per hypothesis test level and a second sequence shifted per hypothesis test level. When the number of hypothesis test levels is greater than 1, the shifted first sequence and the shifted second sequence having a complex conjugate relation in a predetermined normalized CFO value are correlated via the same correlator.

公开(公告)号：US09877314B2

公开(公告)日：2018-01-23

申请号：US14770725

申请日：2014-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo

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

CPC classification number: H04W72/042 ,  H04L5/0051 ,  H04L5/0053 ,  H04W72/00 ,  H04W72/04 ,  H04W72/12

Abstract: An embodiment of the present invention relates to a method for receiving a control signal through an enhanced physical downlink control channel (EPDCCH) by a user equipment in a wireless communication system, the method comprising: receiving a demodulation reference signal (DMRS) included in a physical resource block (PRB) pair; and monitoring an EPDCCH associated with the DMRS, wherein a minimum aggregation level or the number of enhanced resource element groups (EREGs) per enhanced control channel element (ECCE) applied to the EPDCCH is determined depending on to which interval of a plurality of predetermined intervals the number of resource elements (REs) included in the PRB pair belongs.

公开(公告)号：US09867173B2

公开(公告)日：2018-01-09

申请号：US14415099

申请日：2013-07-26

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo ,  Hakseong Kim

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053

Abstract: One embodiment of the present invention relates to a method for enabling a terminal to receive a downlink signal through an enhanced physical downlink control channel (EPDCCH), comprising the steps of: decoding fallback downlink control information (DCI) format in an EPDCCH physical resource block set; and receiving a physical downlink shared channel (PDSCH) on the basis of the fallback DCI format, wherein the PDSCH transmission for receiving the PDSCH is determined according to whether the EPDCCH physical resource block set corresponds to localized EPDCCH transmission or distributed EPDCCH transmission.

公开(公告)号：US09854571B2

公开(公告)日：2017-12-26

申请号：US14405343

申请日：2013-01-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04B7/02 ,  H04B7/0413 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04B7/02 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0053

Abstract: In the present invention, disclosed is a method for a base station transmitting a downlink control channel to user equipment in a wireless communication system. More specifically, the method comprises the steps of configuring resource elements, which are included in each of a plurality of resource blocks, as a plurality of resource element groups comprising a predetermined number of resource elements; allocating antenna ports to the resource elements which are included in each of the plurality of resource element groups; allocating as a transmission resource for the downlink control channel, at least one resource element group from each of the plurality of resource blocks; and transmitting the downlink control channel to the user equipment by using the transmission resource.

公开(公告)号：US09843429B2

公开(公告)日：2017-12-12

申请号：US14414872

申请日：2013-07-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04L5/00 ,  H04W88/02

CPC classification number: H04L5/0053 ,  H04W4/70 ,  H04W76/27 ,  H04W88/02

Abstract: The prevent invention relates to a method and apparatus for transmitting and receiving data. The method for receiving control data by a terminal can include the steps of: a terminal receiving redundant information on a first control channel from a base station; the terminal receiving a first subframe from the base station and first blind decoding being performed on the first subframe in order to monitor the first control channel; the terminal receiving a second subframe from the base station and second blind decoding being performed on the second subframe on the basis of the redundant information and the first blind decoding information in order to monitor a second control channel.

公开(公告)号：US09839023B2

公开(公告)日：2017-12-05

申请号：US14763418

申请日：2014-01-23

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul Seo ,  Inkwon Seo ,  Yunjung Yi

IPC: H04W72/04 ,  H04W48/16 ,  H04L5/00 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W72/042 ,  H04L5/0007 ,  H04L5/0053 ,  H04W48/16 ,  H04W72/0446 ,  H04W88/02 ,  H04W88/08

Abstract: Disclosed in the present application is a method for user equipment receiving a control channel from a base station in a wireless communication system. More particularly, the method comprises a step of monitoring control channel candidates in a search area on a first subframe, and receiving the control channel including control information corresponding to each of one or more subframes, beginning with a predetermined number of subframes from the first subframe, wherein when the one or more subframes are provided in a plurality, the control channel candidates are sorted according to the control information corresponding to each of the plurality of subframes.

公开(公告)号：US09806865B2

公开(公告)日：2017-10-31

申请号：US14905267

申请日：2014-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Hakseong Kim ,  Inkwon Seo

IPC: H04L5/00 ,  H04J11/00 ,  H04J13/00 ,  H04W72/04 ,  H04W28/06 ,  H04W92/18 ,  H04W88/02

CPC classification number: H04L5/0048 ,  H04J11/003 ,  H04J11/0069 ,  H04J13/0003 ,  H04L5/0051 ,  H04W28/06 ,  H04W72/0446 ,  H04W88/02 ,  H04W92/18

Abstract: One embodiment of the present invention relates to a method for transmitting a signal from a device-to-device (D2D) terminal in a wireless communication system, which is a signal transmission method comprising: generating a reference signal sequence; mapping the reference signal sequence on specific symbols; and transmitting a signal comprising the reference signal sequence, wherein the specific symbols are shifted n and m symbols, respectively, away from the fourth symbol of each slot toward a time axis.

公开(公告)号：US09756623B2

公开(公告)日：2017-09-05

申请号：US14425248

申请日：2013-09-13

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04W72/042 ,  H04B7/024 ,  H04B7/0602 ,  H04L1/0038 ,  H04L1/0046 ,  H04L5/0023 ,  H04L5/003 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/04

Abstract: The present invention relates to a method by which a terminal receives a downlink signal through an enhanced physical downlink control channel (EPDCCH) in a wireless communication system. The method includes the steps of: receiving one or more EPDCCH physical resource block (PRB) sets; and blind decoding EPDCCH candidates for each set level from among the one or more EPDCCH PRB sets, wherein one or more of EPDCCH candidate indexes and EPDCCH PRB indexes are used for determining an antenna port related to the EPDCCH candidates.

公开(公告)号：US09730243B2

公开(公告)日：2017-08-08

申请号：US14766024

申请日：2014-02-05

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon Seo ,  Hanbyul Seo ,  Seungmin Lee

IPC: H04W74/00 ,  H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04W88/02

CPC classification number: H04W74/002 ,  H04L1/00 ,  H04L1/1887 ,  H04L1/1896 ,  H04L5/0053 ,  H04L5/0055 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/042 ,  H04W88/02

Abstract: A user equipment (UE) is provided in a long term evolution (LTE) frequency division duplex (FDD) system. The UE receives a downlink control information (DCI) including a UL grant for transmitting the UL signal in an N-th subframe, and transmits the UL signal using the UL grant, in at least one of an (N+4)-th subframe and an (M+4)-th subframe. An M-th subframe is a subframe in which both of a physical downlink control channel (PDCCH) and an enhanced PDCCH (EPDCCH) are not transmitted. N and M are integers, and M is greater than N.

公开(公告)号：US09723542B2

公开(公告)日：2017-08-01

申请号：US14768863

申请日：2014-03-17

Applicant: LG ELECTRONICS INC.

Inventor： Hyukjin Chae ,  Hanbyul Seo ,  Hakseong Kim ,  Inkwon Seo

IPC: H04W48/08 ,  H04L5/00 ,  H04W8/00 ,  H04W72/02 ,  H04W72/04 ,  H04L5/14

CPC classification number: H04W48/08 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0082 ,  H04L5/14 ,  H04L5/1469 ,  H04W8/005 ,  H04W72/02 ,  H04W72/048

Abstract: According to an embodiment of the present invention, a method for transmitting a discovery signal related to device to device (D2D) communication by a first UE in a wireless communication system comprises: mapping a codeword related to a discovery signal to two or more pairs of physical resource blocks (PRBs) on a time axis; and transmitting the mapped codeword, wherein a first pair of PRBs of the two or more pairs of PRBs includes a resource area for a first signal and whether an n-th (n>=2) pair of PRBs of the two or more pairs of PRBs includes the resource area for the first signal is determined according to whether a next subframe of a subframe including an (n−1)-th pair of PRBs is for an uplink transmission.