公开(公告)号：US20190165910A1

公开(公告)日：2019-05-30

申请号：US16252142

申请日：2019-01-18

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Kyuseok KIM ,  Kijun KIM ,  Kunil YUM

IPC: H04L5/00 ,  H04L1/00

Abstract: A method of receiving phase tracking reference signal (PT-RS) by a user equipment (UE) in a wireless communication system, the method includes determining one or more resource blocks to which the PT-RS is mapped among N resource blocks allocated to the UE; and receiving the PT-RS via the one or more second resource blocks, wherein the N resource blocks are indexed as second resource block indices 0 to N−1 from a resource block having a lowest index of first resource block indices to a resource block having a highest index of the first resource block indices, wherein the PT-RS is mapped to the one or more resource blocks having indices of the second resource block indices and the indices are determined based on a first value related to a frequency density of the PT-RS and a second value related to a resource block offset, wherein the first value is determined based on a scheduled bandwidth related with the N resource blocks allocated to the UE, and wherein N is a natural number.

公开(公告)号：US20190141752A1

公开(公告)日：2019-05-09

申请号：US16097201

申请日：2017-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Kyuseok KIM ,  Kilbom LEE ,  Kijun KIM ,  Ilmu BYUN ,  Daesung HWANG ,  Minki AHN

IPC: H04W74/08 ,  H04W56/00 ,  H04W76/11 ,  H04W72/04 ,  H04W16/28 ,  H04B7/06 ,  H04W88/02

Abstract: The present invention relates to a method for user equipment to perform random access in a wireless communication system and a device therefor. The present invention can provide a method and device which: select a predetermined preamble among multiple preamble sets configured according to predetermined conditions; repeatedly transmit the selected predetermined preamble to a base station via one or multiple mutually different neighboring beams; and receive, from the base station and in response to the preamble, a response message containing a temporary identifier of user equipment, wherein the selected predetermined preamble is repeatedly transmitted on resources which constitute a subframe and are distinguished according to the one or multiple mutually different beams.

公开(公告)号：US20190141653A1

公开(公告)日：2019-05-09

申请号：US16308402

申请日：2017-03-22

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Kyuseok KIM ,  Kijun KIM ,  Minki AHN ,  Yunjung YI

IPC: H04W56/00 ,  H04L1/00 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04 ,  H04W74/08

Abstract: Disclosed are a signal transmission method and a base station the signal transmission method comprising: generating a phase data signal used for estimating phase noise in a downlink signal; and mapping the phase data signal on part of a resource region to which a general data signal to be transmitted to a terminal is mapped, and transmitting the general signal and phase data signal to the terminal, wherein the modulation order of the phase data signal is the same or lower than the modulation order of the general data signal.

公开(公告)号：US20190109732A1

公开(公告)日：2019-04-11

申请号：US16209541

申请日：2018-12-04

Applicant: LG Electronics Inc.

Inventor： Kukheon CHOI ,  Jiwon KANG ,  Jonghyun PARK ,  Kyuseok KIM ,  Minki AHN ,  Kilbom LEE

IPC: H04L25/02 ,  H04B1/713 ,  H04L5/00 ,  H04L27/26 ,  H04W76/27 ,  H04W72/04 ,  H04B7/06 ,  H04W88/02

CPC classification number: H04L25/0226 ,  H04B1/713 ,  H04B7/0617 ,  H04L5/00 ,  H04L5/001 ,  H04L5/0048 ,  H04L27/2607 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W76/27 ,  H04W88/02

Abstract: A method of transmitting a sounding reference symbol (SRS) at a user equipment (UE) includes receiving, from a base station, first information including information on at least one predetermined SRS sequence parameter configured in association with a frequency hopping pattern among SRS sequence parameters, generating an SRS sequence using a value of a parameter corresponding to a frequency hopping pattern configured in the UE with respect to the at least one predetermined SRS sequence parameter, and transmitting the SRS, to which the generated SRS sequence is applied, to the base station through SRS resources.

公开(公告)号：US20180227728A1

公开(公告)日：2018-08-09

申请号：US15750356

申请日：2016-04-08

Applicant: LG ELECTRONICS INC.

Inventor： Heejin KIM ,  Jiwon KANG ,  Kitae KIM ,  Kilbom LEE ,  Kungmin PARK

IPC: H04W4/46 ,  H04W72/02

CPC classification number: H04W4/46 ,  H04B7/022 ,  H04B7/06 ,  H04B7/0602 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/08 ,  H04W72/02 ,  H04W88/02

Abstract: The present invention relates to a method for a terminal selecting a distributed antenna in a vehicle-to-vehicle communication system. Here, the method may comprise the steps of: receiving, from all the terminals in a group in which the terminal is included, channel space information for each of the terminals; determining a DU selection on the basis of the received channel space information for each of the terminals; and transmitting the determined DU selection information. Here, the terminal may determine all of the DU selection for each of every terminal in the group, and transmit each determined DU selection information to the corresponding terminal.

公开(公告)号：US20180192466A1

公开(公告)日：2018-07-05

申请号：US15738765

申请日：2016-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Kungmin PARK ,  Jiwon KANG ,  Kitae KIM ,  Kilbom LEE ,  Heejin KIM

IPC: H04W76/25 ,  H04W74/08 ,  H04W4/06 ,  H04W4/40 ,  H04W48/16

CPC classification number: H04W76/25 ,  H04L41/0866 ,  H04L41/0893 ,  H04W4/06 ,  H04W4/40 ,  H04W8/26 ,  H04W48/14 ,  H04W48/16 ,  H04W72/0413 ,  H04W74/0833 ,  H04W76/15 ,  H04W84/005 ,  H04W88/06 ,  H04W88/08

Abstract: A method of accessing a network by using a virtual UE scheme and a UE thereto are disclosed. The method includes performing a first random access procedure for a first DU group including one or more DUs with respect to a base station, performing a second random access procedure for a second DU group with respect to the base station, while maintaining a connection of the first DU group with the base station, and communicating with the base station via the first DU group and the second DU group.

公开(公告)号：US20180191417A1

公开(公告)日：2018-07-05

申请号：US15739867

申请日：2016-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jiwon KANG ,  Kilbom LEE ,  Heejin KIM ,  Kungmin PARK

IPC: H04B7/06 ,  H04B7/0413 ,  H04W72/02

CPC classification number: H04B7/0617 ,  H04B7/04 ,  H04B7/0404 ,  H04B7/0413 ,  H04B7/0695 ,  H04W72/02

Abstract: A method and apparatus for transmitting an uplink beam scanning signal in a wireless communication system is provided. A terminal first performs downlink beam scanning, and then transmits the uplink beam scanning signal to a base station through a time-frequency resource corresponding to a beam selected according to the downlink beam scanning. The terminal may transmit information on the downlink beam scanning to the base station. The base station may divide a plurality of terminals into a plurality of groups on the basis of information on downlink beam scanning, received from the plurality of terminals, and perform uplink beam scanning for only uplink beams which are selected corresponding to the plurality of groups among all the uplink beams.

公开(公告)号：US20180176069A1

公开(公告)日：2018-06-21

申请号：US15580262

申请日：2016-01-20

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jiwon KANG ,  Kitae KIM ,  Kungmin PARK ,  Heejin KIM

IPC: H04L27/38 ,  H04L27/26

CPC classification number: H04L27/38 ,  H04L27/2655 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2676 ,  H04L27/34 ,  H04W84/12

Abstract: Disclosed is a method for estimating a CFO, the method comprising: measuring a size ratio of a signal pair received in two consecutive OFDM symbols of a predetermined subcarrier; determining the received signal pair as a signal pair to be used for estimating a residual CFO when the size ratio is within a first threshold range; and estimating the residual CFO, using only the received signal pair which has been determined to be used for estimating the residual CFO.

公开(公告)号：US20180145808A1

公开(公告)日：2018-05-24

申请号：US15571601

申请日：2016-05-17

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jiwon KANG ,  Kilbom LEE ,  Heejin KIM ,  Kungmin PARK

IPC: H04L5/00 ,  H04W72/08 ,  H04W16/28 ,  H04W16/02 ,  H04L25/02 ,  H04W56/00

CPC classification number: H04L5/0048 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0695 ,  H04L5/0007 ,  H04L25/0224 ,  H04W16/02 ,  H04W16/28 ,  H04W56/001 ,  H04W72/085 ,  H04W88/02 ,  H04W88/08

Abstract: Provided are a method and an apparatus for transmitting an uplink reference signal in a wireless communication system. A terminal receives from a base station, information on the maximum repetition number of the uplink reference signal, determines the repetition number of the uplink reference signal using the received information on the maximum repetition number of the uplink reference signal and signal quality obtained through downlink synchronization, and repeatedly transmits, to the base station, the uplink reference signal according to the determined repetition number of the uplink reference signal. The base station determines the uplink coverage of the terminal on the basis of the repeatedly received uplink reference signal.

公开(公告)号：US20180077730A1

公开(公告)日：2018-03-15

申请号：US15553972

申请日：2016-03-07

Applicant: LG ELECTRONICS INC.

Inventor： Kitae KIM ,  Jiwon KANG ,  Kilbom LEE ,  Kungmin PARK ,  Heejin KIM

IPC: H04W74/08 ,  H04W56/00

CPC classification number: H04W74/0833 ,  H04J13/0055 ,  H04L5/0053 ,  H04W56/0005

Abstract: Provided are a method and an apparatus for detecting a random access channel (RACH) preamble on the basis of a plurality of zero-correlation zones (ZCZ) in a wireless communication system. A user equipment (UE) transmits a RACH preamble, generated using a combination of a plurality of sequences corresponding to a plurality of zero-correlation zones, to an evolved NodeB (eNB). The evolved NodeB (eNB) detects a plurality of peaks from the RACH preamble and transmits a random access response to the UE.