公开(公告)号：US10911206B2

公开(公告)日：2021-02-02

申请号：US16708225

申请日：2019-12-09

Applicant: LG Electronics Inc.

Inventor： Yeong Hyeon Kwon ,  Jae Hoon Chung ,  Seung Hee Han ,  So Yeon Kim

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/18 ,  H04L1/16 ,  H04L1/00 ,  H04W72/12

Abstract: A method of generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system is discussed. The method includes receiving, by the UE from a base station (BS), a plurality of codewords through a plurality of downlink frequency bands related to a plurality of downlink carriers, wherein the UE is configured with a 1-codeword mode or a 2-codeword mode for each of the plurality of downlink frequency bands independently, and wherein a number of supported codewords is one for the 1-codeword mode or two for the 2-codeword mode; determining, by the UE, a total number of ACK/NACK bits, wherein the total number of ACK/NACK bits is determined based on a total number of the plurality of downlink carriers and the number of supported codewords; and generating, by the UE, a sequence of the ACK/NACK bits based on the total number of the ACK/NACK bits.

公开(公告)号：US10582483B2

公开(公告)日：2020-03-03

申请号：US16023737

申请日：2018-06-29

Applicant: LG ELECTRONICS INC.

Inventor： Min Seok Noh ,  Moon Il Lee ,  Jae Hoon Chung ,  Sung Ho Moon ,  Seung Hee Han

IPC: H04J3/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L5/14 ,  H04J11/00 ,  H04B7/06 ,  H04L25/02 ,  H04L25/03

Abstract: A method for mapping, by a base station, a channel state information (CSI)-reference signal (RS) in a wireless communication system, includes mapping the CSI-RS, for at least one antenna port, to at least one pair of resource elements (REs) per physical resource block (PRB) pair in consecutive orthogonal frequency division multiplexing (OFDM) symbols in a subframe, wherein the subframe includes two slots, and each slot includes six OFDM symbols based on an extended cyclic prefix (CP), and transmitting the CSI-RS to a user equipment (UE) via the at least one antenna port in the subframe.

公开(公告)号：US10574412B2

公开(公告)日：2020-02-25

申请号：US15408283

申请日：2017-01-17

Applicant: LG Electronics Inc.

Inventor： Jae Hoon Chung ,  Yeong Hyeon Kwon ,  Seung Hee Han ,  Min Seok Noh

IPC: H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04B7/06 ,  H04L1/00 ,  H04L1/16

Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and to an apparatus for transmitting an SRS in a multi-antenna system. The method comprises the steps of: acquiring specific information for discriminating a first antenna group and a second antenna group from among a plurality of antennas, wherein said first antenna group includes one or more antennas which are set to a turned-on state to perform communication with a base station, and said second antenna group includes one or more other antennas which are set to a turned-off state; transmitting an SRS to the base station if a predetermined condition is satisfied, under the condition that the second antenna group is set to the turned-off state; and setting the second antenna group to a turned-off state after the transmission of the SRS.

公开(公告)号：US10397905B2

公开(公告)日：2019-08-27

申请号：US15584807

申请日：2017-05-02

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee Han ,  Jae Hoon Chung ,  Sung Ho Moon ,  Moon Il Lee

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18

Abstract: The present invention provides a method and apparatus for transmitting uplink control information (UCI) by user equipment in a wireless communication. The user equipment performs channel coding on information bits of the UCI to generate encoding information bits; performs modulation on the thus generated encoding information bits to generate complex modulation symbols; spreads the complex modulation symbols block-wise to a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols based on an orthogonal sequence; and transmits the spread complex modulation symbols to a base station.

公开(公告)号：US10320544B2

公开(公告)日：2019-06-11

申请号：US15913491

申请日：2018-03-06

Applicant: LG ELECTRONICS INC.

Inventor： Min Seok Noh ,  Hyun Soo Ko ,  Seung Hee Han ,  Jae Hoon Chung ,  Moon Il Lee

IPC: H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04B7/06 ,  H04W88/06

Abstract: A method for transmitting a demodulation reference signal (DM-RS), by a user equipment (UE), in a wireless communication system is discussed. The method includes receiving, by the UE from a base station, a cyclic shift field in downlink control information (DCI), wherein the cyclic shift field indicates first, second, and third cyclic shift values for first, second, and third layers respectively, generating, by the UE, first, second, and third DMRSs for the first, second, and third layers respectively, based on first, second, and third cyclic shifts respectively, wherein the first, second, and third cyclic shifts are determined based on the first, second, and third cyclic shift values respectively, and transmitting, by the UE to the base station, the first, second, and third DMRSs.

公开(公告)号：US10264567B2

公开(公告)日：2019-04-16

申请号：US15448965

申请日：2017-03-03

Applicant: LG ELECTRONICS INC.

Inventor： Min Seok Noh ,  Jae Hoon Chung ,  Seung Hee Han

IPC: H04L12/26 ,  H04W72/04 ,  H04B7/155 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00

Abstract: A method for mapping uplink data to a physical uplink shared channel (PUSCH) by a user equipment (UE) in a wireless communication system, the method includes receiving a configuration for a UE-specific aperiodic sounding reference signal (SRS) subframe from a base station; and mapping the uplink data to the PUSCH in the UE-specific aperiodic SRS subframe, wherein the UE-specific aperiodic SRS subframe includes a single carrier frequency division multiple access (SC-FDMA) symbol reserved for an aperiodic SRS, wherein the aperiodic SRS is selectively transmitted in the reserved SC-FDMA symbol to the base station, and the aperiodic SRS is transmitted in the reserved SC-FDMA symbol when triggered by the base station, and wherein the uplink data is mapped to SC-FDMA symbols other than the SC-FDMA symbol reserved for the aperiodic SRS in the UE-specific aperiodic SRS subframe in a case when the aperiodic SRS is not transmitted in the reserved SC-FDMA symbol.

公开(公告)号：US10211963B2

公开(公告)日：2019-02-19

申请号：US16049270

申请日：2018-07-30

Applicant: LG ELECTRONICS INC.

Inventor： Yeong Hyeon Kwon ,  Jae Hoon Chung ,  Seung Hee Han ,  So Yeon Kim

IPC: H04L1/16 ,  H04L1/18 ,  H04W72/04 ,  H04L5/00 ,  H04W72/12 ,  H04L1/00

Abstract: A method of generating Acknowledgement/Negative Acknowledgement (ACK/NACK) information by a user equipment (UE) in a wireless communication system supporting carrier aggregation, the method including receiving, by the UE from a base station (BS), a plurality of codewords through a plurality of downlink frequency bands corresponding to a plurality of downlink carriers, wherein each of the plurality of downlink frequency bands operates in a 1-codeword mode or a 2-codeword mode, and a number of supported codewords according to the 1-codeword mode or the 2-codeword mode is independently configured for each of the downlink frequency bands, determining, by the UE, a total number of ACK/NACK bits, wherein the total number of ACK/NACK bits is determined based on a total number of the plurality of downlink carriers and the number of supported codewords according to the 1-codeword mode or the 2-codeword mode and generating, by the UE, a sequence of the ACK/NACK bits according to the total number of the ACK/NACK bits.

公开(公告)号：US10091770B2

公开(公告)日：2018-10-02

申请号：US15479995

申请日：2017-04-05

Applicant: LG ELECTRONICS INC.

Inventor： Jin Sam Kwak ,  Seung Hee Han ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Dong Cheol Kim

IPC: H04L1/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04L27/20 ,  H04L27/22 ,  H04J11/00 ,  H04L1/16

Abstract: A method of transmitting control signals in a wireless communication system includes multiplexing a first control signal with a second control signal in a slot, the slot comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols in time domain, the plurality of OFDM symbols being divided into a plurality of data OFDM symbols and a plurality of reference signal (RS) OFDM symbols, wherein the first control signal is mapped to the plurality of data OFDM symbols after the first control signal is spread by a base sequence in the frequency domain, the RS is mapped to the plurality of RS OFDM symbols, the second control signal is mapped to at least one of the plurality of RS OFDM symbols, and transmitting the first control signal and the second control signal in the slot.

公开(公告)号：US10044461B2

公开(公告)日：2018-08-07

申请号：US15697210

申请日：2017-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Min Seok Noh ,  Seung Hee Han ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Dong Cheol Kim ,  Jin Sam Kwak

IPC: H04J13/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04J13/0062 ,  H04J11/005 ,  H04L5/0016 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0053 ,  H04L23/02 ,  H04L27/2607 ,  H04L27/261 ,  H04L27/2613

Abstract: Method for generating reference signal sequence using grouping is explained. In this method, base sequences are grouped such that each group contains at least one base sequence of each length, so UE(s) can use various length sequences as a reference signal. And in this method, inter cell interference caused by using various length sequence as a reference signal sequence can be minimized by grouping sequences having the high cross correlation relation.

公开(公告)号：US10009159B2

公开(公告)日：2018-06-26

申请号：US15257159

申请日：2016-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hoon Chung ,  Moon Il Lee ,  Seung Hee Han ,  Min Seok Noh

IPC: H04L5/00 ,  H04B7/155 ,  H04W92/12 ,  H04W52/14 ,  H04W52/32 ,  H04W52/58 ,  H04L27/26 ,  H04W84/04

CPC classification number: H04L5/0048 ,  H04B7/155 ,  H04B7/15557 ,  H04L27/26 ,  H04W52/146 ,  H04W52/325 ,  H04W52/58 ,  H04W84/047 ,  H04W92/12

Abstract: A method is provided for demodulating a signal. A relay node receives control information, from an evolved-NodeB (eNB), through a relay-physical downlink control channel (R-PDCCH), and receives a data, from the eNB, through a physical downlink shared channel (PDSCH). When a number of transmission layers of the PDSCH is 2 or more than 2 and a plurality of reference signals for a demodulation of the data are transmitted on antenna ports by the eNB, a reference signal transmitted on a minimum antenna port among the antenna ports is used for a demodulation of the control information.