公开(公告)号：US20200162303A1

公开(公告)日：2020-05-21

申请号：US16064398

申请日：2018-03-12

Applicant: LG Electronics Inc.

Inventor： Kyuseok KIM ,  Kilbom LEE ,  Jiwon KANG ,  Hyunsoo KO ,  Kijun KIM ,  Seonwook KIM ,  Hyungtae KIM ,  Minki AHN

IPC: H04L27/26 ,  H04L5/00

Abstract: The present invention relates to a method and a device for a terminal performing phase tracking in a wireless communication system. According to the present invention, a method and a device may be provided, the method comprising: receiving, from a base station, configuration information associated with a phase tracking reference signal (PTRS); and on the basis of the configuration information, receiving a first demodulation reference signal (DMRS) and the PTRS, wherein the PTRS is mapped to at least one OFDM symbol according to a particular pattern and at a predetermined symbol interval, and phase tracking for data demodulation is performed on the basis of at least one of the first DMRS or the PTRS.

公开(公告)号：US20200153673A1

公开(公告)日：2020-05-14

申请号：US16738515

申请日：2020-01-09

Applicant: LG Electronics Inc.

Inventor： Kilbom LEE ,  Jaehoon CHUNG ,  Kyuseok KIM ,  Minki AHN

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/01 ,  H04B7/06 ,  H04J13/00 ,  H04L25/02

Abstract: Disclosed are a signal transmission method and a base station, the method: generating a PCRS used in order to remove phase noise from a downlink signal; mapping the PCRS at predetermined intervals on a region, in which a data channel is mapped, in a downlink resource region; and transmitting the PCRS to a terminal.

公开(公告)号：US20200036493A1

公开(公告)日：2020-01-30

申请号：US16496351

申请日：2018-01-30

Applicant: LG Electronics Inc.

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

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04W74/08

Abstract: A method for a user equipment to receive control information for a sounding reference symbol (SRS) transmission in a wireless communication system may comprise: a step of receiving, from a base station, any one piece of information on an SRS bandwidth (BW), the number of SRS blocks and the length of an SRS block which have been set up for the user equipment; and a step of transmitting an SRS on the basis of the control information.

公开(公告)号：US20190238247A1

公开(公告)日：2019-08-01

申请号：US16380822

申请日：2019-04-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04J11/00 ,  H04L5/00 ,  H04L27/38 ,  H04L27/12

CPC classification number: H04J11/0023 ,  H04L5/0007 ,  H04L27/12 ,  H04L27/38

Abstract: According to one embodiment of the present specification, a method by which a base station transmits a signal for removing phase noise in an mmWave communication system can be provided, wherein the method for removing phase noise can comprise the steps of: generating a shared PTRS for phase noise of a downlink signal; transmitting, to a terminal, shared PTRS pattern information on the shared PTRS through downlink signaling; and transmitting, to the terminal, the shared PTRS on the basis of the shared PTRS pattern information transmitted to the terminal.

公开(公告)号：US20190190677A1

公开(公告)日：2019-06-20

申请号：US16273705

申请日：2019-02-12

Applicant: LG ELECTRONICS INC.

Inventor： Kyuseok KIM ,  Kilbom LEE ,  Jaehoon CHUNG ,  Minki AHN

IPC: H04L5/00 ,  H04W72/04

Abstract: A method of transmitting, by a terminal, a phase noise compensation reference signal in a wireless communication system is discussed. The method includes determining a frequency resource and a time resource of a demodulation reference signal (DM-RS); mapping the phase noise compensation reference signal to a frequency resource and a time resource based on the determined frequency resource and the time resource of the DM-RS; and transmitting, to a base station, the phase noise compensation reference signal on the mapped frequency resource and the time resource of the phase compensation reference signal. Further, a location of a phase noise compensation reference signal symbol in the time resource is determined based on a location of a DM-RS symbol in the time resource of the DM-RS.

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：US20170367114A1

公开(公告)日：2017-12-21

申请号：US15453771

申请日：2017-03-08

Applicant: LG ELECTRONICS INC.

Inventor： Minki AHN ,  Jaehoon CHUNG ,  Kilbom LEE ,  Kyuseok KIM

IPC: H04W72/12 ,  H04L5/00 ,  H04B7/04

CPC classification number: H04L5/0048 ,  H04B7/0469 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0091 ,  H04L27/26

Abstract: Provided are a method and an apparatus for performing communication based on hybrid beamforming in a wireless communication system. Specifically, a user equipment (UE) transmits a dedicated scheduling request to a base station (BS). The dedicated scheduling request indicates a first scheduling request that is a request to transmit beam state information, multiplexed on an uplink data channel, or a second scheduling request that is a request to allocate a resource for a reference signal for beam refinement information. When the dedicated scheduling request indicates the first scheduling request, the UE receives an uplink grant including a response to the first scheduling request from the BS. The UE feeds the BSI back multiplexed on the uplink data channel to the BS.