公开(公告)号：US20170311344A1

公开(公告)日：2017-10-26

申请号：US15517919

申请日：2015-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Hanbyul SEO

IPC: H04W72/12 ,  H04W28/06 ,  H04L27/38 ,  H04L5/00 ,  H04L1/18 ,  H04W74/08 ,  H04L1/00

CPC classification number: H04W72/1289 ,  H04L1/0025 ,  H04L1/1812 ,  H04L5/0007 ,  H04L27/3836 ,  H04W28/06 ,  H04W56/00 ,  H04W72/12 ,  H04W74/08 ,  H04W74/0833

Abstract: The present invention relates to a method and apparatus for monitoring a downlink control channel by a first terminal having a single RX chain in a wireless communication system. Specifically, the present invention comprises the steps of: setting a particular gap for a resource area related to device-to-device (D2D) signal transmission/reception; and monitoring a wide area network (WAN) communication-based downlink control channel on the basis of a timer performed according to a discontinuous reception (DRX) operation, wherein the timer is counted on the basis of at least one subframe which does not overlap with the particular gap, and the particular gap is a time interval set for allowing the single RX chain to cover a switching operation between WMN communication and D2D communication.

公开(公告)号：US20170311313A1

公开(公告)日：2017-10-26

申请号：US15648883

申请日：2017-07-13

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun PARK ,  Hanbyul SEO ,  Kijun KIM ,  Byounghoon KIM

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04B1/7143 ,  H04L1/00

CPC classification number: H04W72/0413 ,  H04B1/7143 ,  H04L1/00 ,  H04L5/0012 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/005 ,  H04L27/26 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/044

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting an uplink signal. A method for transmitting an uplink signal at a UE in a wireless communication system includes, when a virtual cell ID for a reference signal for demodulation of a physical uplink channel is provided, generating a sequence of the reference signal on the basis of the virtual cell ID, and transmitting the generated reference signal to an eNB. A group hopping pattern of the reference signal can be determined on the basis of the virtual cell ID.

公开(公告)号：US20170303216A1

公开(公告)日：2017-10-19

申请号：US15510159

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Inkwon SEO ,  Hanbyul SEO ,  Youngtae KIM

IPC: H04W52/38 ,  H04W56/00 ,  H04J11/00

CPC classification number: H04W52/383 ,  H04J11/00 ,  H04J11/0059 ,  H04W56/00

Abstract: An embodiment of the present invention relates to a method for transmitting a synchronization signal in a wireless communication system, the method comprising the steps of: generating a synchronization signal on the basis of a cell ID which is determined depending on whether a terminal for transmitting the synchronization signal is a terminal located outside of a coverage; and transmitting the synchronization signal.

公开(公告)号：US20170295601A1

公开(公告)日：2017-10-12

申请号：US15505889

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong KIM ,  Hanbyul SEO

IPC: H04W76/02 ,  H04W72/04

Abstract: Disclosed are a method for device-to-device communication in a wireless communication system, and an apparatus therefor. Specifically, the present invention relates to a method for performing device-to-device (D2D) communication by a terminal in a wireless communication system, the method comprising the steps of: receiving, from a base station, physical sidelink control channel (PSCCH) resource pool setting information; receiving, from the base station, downlink control information (DCI) including the PSCCH resource allocation information; and sending the PSCCH on the basis of the PSCCH resource allocation information, wherein a first PSCCH time-frequency resource and a second PSCCH time-frequency resource for sending the PSCCH are determined on the basis of a value indicated in the PSCCH resource allocation information within the PSCCH resource pool, and the PSCCH may be sent in the first PSCCH time-frequency resource and the second PSCCH time-frequency resource.

公开(公告)号：US20170289974A1

公开(公告)日：2017-10-05

申请号：US15608434

申请日：2017-05-30

Applicant: LG ELECTRONICS INC.

Inventor： Jihyun LEE ,  Inkwon SEO ,  Hanbyul SEO ,  Seungmin LEE

IPC: H04W72/04 ,  H04W48/12 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L1/1893 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0053 ,  H04W48/12 ,  H04W48/16 ,  H04W72/044

Abstract: A method for receiving a downlink control signal by a user equipment (UE) in a wireless communication system, the method includes monitoring the plurality of enhanced physical downlink control channel (EPDCCH) candidates in an EPDCCH set to decode an EPDCCH transmitted from a base station (BS) using the minimum aggregation level; decoding the EPDCCH transmitted from the BS; and receiving a physical downlink shared channel (PDSCH) corresponding to the decoded EPDCCH, wherein a minimum aggregation level for a plurality of EPDCCH candidates is determined as 2 if both a downlink (DL) bandwidth includes at least 25 resource blocks (RBs) and a downlink control information (DCI) format is one of DCI formats 2, 2A, 2B, 2C and 2D.

公开(公告)号：US20170273059A1

公开(公告)日：2017-09-21

申请号：US15509162

申请日：2015-09-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W72/12

CPC classification number: H04W72/042 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0094 ,  H04L25/03 ,  H04W4/70 ,  H04W72/1205 ,  H04W84/042

Abstract: Provided is a method for receiving a downlink control channel in a machine type communication (MTC) device configured to operate only in a part of a band among system bands of a cell. A method for receiving a downlink control channel can comprise the steps of: determining a precoding matrix index (PMI) applied to a downlink control channel receivable only in a part of a band; receiving from a cell the downlink control channel in the part of the band in a data area of a subframe; and decoding the downlink control channel, which has been received from the cell, on the basis of the determined PMI.

公开(公告)号：US20170265154A1

公开(公告)日：2017-09-14

申请号：US15309723

申请日：2015-06-17

Applicant: LG ELECTRONICS INC.

Inventor： Hanbyul SEO ,  Manyoung JUNG

IPC: H04W56/00 ,  H04W76/04 ,  H04W72/04

CPC classification number: H04W56/001 ,  H04J11/00 ,  H04W72/0446 ,  H04W72/048 ,  H04W76/27

Abstract: The present invention provides a method for receiving synchronizing signals for direct communication between terminals and a device for same, which are used in a wireless communication system. The method whereby terminals transmit/receive synchronizing signals, according to one aspect of the present invention, may comprise the steps of: obtaining synchronization by receiving a synchronizing signal from a first-type device; receiving information on a synchronization mode, which indicates a first or second synchronization mode, from the first-type device; and if the synchronization mode is the second synchronization mode, receiving a synchronizing signal from a second-type device so as to obtain synchronization for direct communication between the terminals.

公开(公告)号：US20170251457A1

公开(公告)日：2017-08-31

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

CPC classification number: H04W72/042 ,  H04L1/1861 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0094

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：US20170230995A1

公开(公告)日：2017-08-10

申请号：US15502178

申请日：2015-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Hakseong KIM ,  Hanbyul SEO

IPC: H04W72/12 ,  H04W72/04 ,  H04W52/04

CPC classification number: H04W72/1278 ,  H04W52/04 ,  H04W52/383 ,  H04W72/042 ,  H04W72/1289

Abstract: The present specification comprises the steps of: acquiring a resource pool to be used for D2D communication in a wireless communication system, the resource pool including a scheduling assignment (SA) resource pool indicating an SA transmission resource region and/or a data resource pool indicating a D2D data transmission resource region; transmitting an SA including information related to D2D data transmission to a second user equipment through the SA resource pool; and transmitting D2D data to the second user equipment, wherein the resource pool is received from a base station through a D2D grant, and the D2D grant includes first control information related to a transmission power control of the SA.

公开(公告)号：US20170207885A1

公开(公告)日：2017-07-20

申请号：US15508891

申请日：2015-09-04

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Suckchel YANG ,  Hanbyul SEO

IPC: H04L1/18 ,  H04W72/12

CPC classification number: H04L1/1835 ,  H04L1/1822 ,  H04L5/00 ,  H04W28/14 ,  H04W72/1215

Abstract: The present invention relates to a method and apparatus for operating a soft buffer for device-to-device (D2D) communication and eNode B-to-device (E2D) communication of a terminal in a wireless communication system. Specifically, the present invention comprises the steps of: receiving D2D communication data; and storing the D2D communication data in a soft buffer of a specific downlink hybrid automatic repeat and request (HARQ) process, wherein the specific downlink HARQ process is configured to support D2D communication among a plurality of downlink HARQ processes configured for E2D communication, and the step of storing the D2D communication data comprises: when E2D data are already stored in all soft buffer areas associated with the plurality of downlink HARQ processes, discarding the E2D data already stored in the soft buffer area of the specific downlink HARQ process and storing the D2D communication data therein.