公开(公告)号：US20180376495A1

公开(公告)日：2018-12-27

申请号：US16063191

申请日：2016-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyunho LEE ,  Kijun KIM ,  Eunsun KIM ,  Suckchel YANG ,  Yunjung YI ,  Youngtae KIM ,  Daesung HWANG

IPC: H04W72/12 ,  H04L5/00 ,  H04W48/12

CPC classification number: H04W72/1289 ,  H04L5/00 ,  H04L5/0048 ,  H04L27/2613 ,  H04W48/12 ,  H04W72/04 ,  H04W72/0446

Abstract: Provided is an uplink reference signal transmitting method for a terminal configured to support a length of a transmission time interval (TTI) in a wireless communication system according to an embodiment of the present invention. The method is performed by a terminal and may comprise the steps of: receiving configuration information associated with an uplink reference signal for a plurality of TTIs from a base station; and transmitting an uplink reference signal in at least one TTI from among the plurality of TTIs, using the received configuration information, wherein the configuration information may be included in signaling that schedules at least one TTI from among the plurality of TTIs.

公开(公告)号：US20180359067A1

公开(公告)日：2018-12-13

申请号：US15781419

申请日：2016-12-02

Applicant: LG ELECTRONICS INC.

Inventor： Youngtae KIM ,  Hanbyul SEO ,  Hyukjin CHAE ,  Kijun KIM ,  Inkwon SEO

IPC: H04L5/00 ,  H04W80/02 ,  H04W4/70 ,  H04W4/46 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L5/0051 ,  H04L27/2607 ,  H04L27/2611 ,  H04W4/44 ,  H04W4/46 ,  H04W4/70 ,  H04W72/0446 ,  H04W80/02

Abstract: A demodulation reference signal (DMRS) transmission method in a vehicle-to-something (V2X) communication is disclosed. The DMRS in V2X communication is mapped onto four symbols in at least one subframe from among a plurality of subframes. For correction of the frequency offset, the four symbols may comprise a symbol pair located at least two symbol intervals.

公开(公告)号：US20180332602A1

公开(公告)日：2018-11-15

申请号：US15737969

申请日：2016-06-20

Applicant: LG ELECTRONICS INC.

Inventor： Seungmin LEE ,  Hyukjin CHAE ,  Youngtae KIM ,  Kijun KIM ,  Hanbyul SEO ,  Hanjun PARK

IPC: H04W72/12 ,  H04W72/02 ,  H04W4/40 ,  H04W72/04

Abstract: The present invention relates to a Vehicle-to-X (V2X) communication method performed by a terminal in a wireless communication system. The method comprises: determining priority of information related to the V2X communication; selecting a transmission time interval (TTI) on the basis of the priority; and transmitting the information on the basis of the selected TTI. If the information related to the V2X communication is information having high priority, a first TTI is selected, and if the information related to the V2X communication is information having relatively lower priority than the information having high priority, a second TTI is selected.

公开(公告)号：US20180287844A1

公开(公告)日：2018-10-04

申请号：US15765458

申请日：2016-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Bonghoe KIM ,  Kijun KIM ,  Hyunsoo KO ,  Byounghoon KIM ,  Yunjung YI ,  Seokmin SHIN

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/06 ,  H04W72/04

Abstract: The present invention provides a method and devices for transmitting and receiving a synchronization signal and a method for generating a synchronization signal in a wireless access system supporting narrowband Internet of Things (NB-IoT). A method for transmitting a primary synchronization signal (PSS) by a base station in a wireless access system supporting narrowband Internet of Things (NB-IoT), according to an embodiment of the present invention, can comprise the steps of: repeatedly generating first sequences n times so as to generate primary synchronization signals; multiplying n first sequences by second sequences and thus generating n primary synchronization signals; and transmitting n primary synchronization signals by means of n OFDM symbols, respectively. The size of a bandwidth used in the wireless access system supporting NB-IoT is the size of one physical resource block (PRB), and one PRB can comprise twelve subcarriers in a frequency domain.

公开(公告)号：US20180235008A1

公开(公告)日：2018-08-16

申请号：US15751840

申请日：2016-08-11

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun PARK ,  Joonkui AHN ,  Seonwook KIM ,  Kijun KIM ,  Byounghoon KIM ,  Hanbyul SEO

IPC: H04W74/08 ,  H04W16/14 ,  H04B7/06 ,  H04W16/28

Abstract: According to one embodiment of the present invention, a method by which a wireless communication device including a plurality of antennas transmits and receives a wireless signal in an unlicensed band in a wireless communication system comprises the steps of: performing a clear channel assessment (CCA) by using the plurality of antennas for a predetermined time interval in the unlicensed band; and transmitting the wireless signal through the unlicensed band when it is determined that the unlicensed band is in an idle state in which the unlicensed band is not occupied by other wireless communication devices, wherein the step of performing the CCA can comprise the steps of: acquiring one reference value by using energy sensing indicators (ESIs) measured through the plurality of antennas; and comparing the reference value with a CCA threshold value so as to determine whether the unlicensed band is in an idle state.

公开(公告)号：US20180234871A1

公开(公告)日：2018-08-16

申请号：US15751965

申请日：2016-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Joonkui AHN ,  Kijun KIM ,  Yunjung YI ,  Seonwook KIM

IPC: H04W24/10 ,  H04W28/26 ,  H04W74/08

Abstract: Provided are a method and an apparatus for performing radio resource management (RRM) measurement in an unlicensed band. The apparatus sets a first measurement section and a second measurement section for the RRM measurement in the unlicensed band, and measures a received signal strength indicator (RSSI) during the first measurement section and the second measurement section.

公开(公告)号：US20180219598A1

公开(公告)日：2018-08-02

申请号：US15742219

申请日：2016-07-13

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Jonghyun PARK ,  Kijun KIM

IPC: H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/04 ,  H04B7/0478 ,  H04B7/06 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0048

Abstract: Disclosed in the present invention is a method for reporting, by a terminal, channel status information (CSI) to a base station in a wireless communication system. The CSI reporting method is characterized by including the steps of: transmitting, to a base station, first CSI including a rank indicator in a first period unit; transmitting, to the base station, second CSI including a vertical precoding matrix index in a second period unit within the first period; and transmitting, to the base station, third CSI including horizontal precoding matrix index in a third period unit within the second period.

公开(公告)号：US20180212732A1

公开(公告)日：2018-07-26

申请号：US15743608

申请日：2016-07-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyangsun YOU ,  Jonghyun PARK ,  Yunjung YI ,  Kijun KIM ,  Seungmin LEE ,  Ilmu BYUN

IPC: H04L5/00 ,  H04W72/04 ,  H04L5/14

CPC classification number: H04L5/0051 ,  H04L5/0053 ,  H04L5/0091 ,  H04L5/1469 ,  H04W72/042

Abstract: Provided are method and device for transmitting/receiving a downlink signal. A user equipment-specific reference signal (UE-RS) can be transmitted to a user equipment. A downlink control channel and a downlink data channel for the user equipment can share the UE-RS. Antenna port information about a transmission antenna port of the downlink control channel and/or a transmission antenna port of the downlink data channel is provided to the user equipment. The user equipment receives UE-RS(s) corresponding to the antenna port information and thus receives the downlink control channel and the downlink data channel.

公开(公告)号：US20180212666A1

公开(公告)日：2018-07-26

申请号：US15759372

申请日：2016-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyungtae KIM ,  Kijun KIM

IPC: H04B7/06 ,  H04W24/10 ,  H04B7/04

CPC classification number: H04B7/0639 ,  H04B7/04 ,  H04B7/0421 ,  H04B7/0478 ,  H04B7/06 ,  H04B7/0695 ,  H04W24/10

Abstract: Disclosed in the present application is a method by which a terminal reports a beam index to a base station in a wireless access system. The beam index reporting method comprises the steps of: receiving a plurality of reference signals from the base station; measuring a plurality of beams by using the plurality of reference signals; reporting an index of a first preferential beam among the plurality of beams to the base station; and reporting, to the base station, information on at least one second preferential beam determined on the basis of the first preferential beam, wherein the information on at least one second preferential beam is information on an index difference between the first preferential beam and the at least one second preferential beam.

公开(公告)号：US20180198510A1

公开(公告)日：2018-07-12

申请号：US15739929

申请日：2016-07-08

Applicant: LG ELECTRONICS INC.

Inventor： Jonghyun PARK ,  Kijun KIM ,  Haewook PARK ,  Youngtae KIM

IPC: H04B7/06 ,  H04W24/10 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04B7/04 ,  H04B7/06 ,  H04L5/00 ,  H04L5/0035 ,  H04W24/10

Abstract: The present specification relates to a method for reporting channel state information (CSI) in a wireless communication system, comprising the steps of: receiving, from a base station, CSI-reference signal (RS) resource configuration information for indicating a resource configuration of a CSI-RS using more than eight antenna ports; receiving, from the base station, a CSI-RS using the more than eight antenna ports based on the received CSI-RS resource configuration information; and reporting, to the base station, channel state information (CSI) based on the received CSI-RS. Therefore, mutual compatibility with a legacy system may be obtained and resources may be more efficiently utilized.