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公开(公告)号:US10932240B2
公开(公告)日:2021-02-23
申请号:US16345017
申请日:2017-01-31
Applicant: LG Electronics Inc.
Inventor: Sangrim Lee , Hojae Lee , Dongkyu Kim , Myeongjin Kim , Kwangseok Noh
Abstract: A method by which a terminal transmits a scheduling request (SR) in a wireless communication system, according to the present invention, comprises the steps of: receiving information on periodicity of SR transmission and a resource region for periodical SR transmission; receiving downlink control information (DCI) which includes a field related to an SR transmission region in a first subframe; and confirming whether the resource for the SR transmission of the terminal is allocated in the first subframe, even if the first subframe is not the subframe for the periodical SR transmission of the terminal, according to the periodicity of the SR transmission, when a SR field indicates a specific value.
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2.
公开(公告)号:US10757740B2
公开(公告)日:2020-08-25
申请号:US16342793
申请日:2017-08-08
Applicant: LG Electronics Inc.
Inventor: Sangrim Lee , Hojae Lee , Dongkyu Kim , Myeongjin Kim , Kwangseok Noh
Abstract: A method for performing, by a terminal, a contention-based uplink transmission in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: selecting any one of a plurality of codewords and any one of a plurality of demodulation reference signals (DMRS), the plurality of codewords and the plurality of DMRSs being set in a contention resource area for a contention-based uplink transmission; and transmitting, through the contention resource area, uplink data that corresponds to the selected codeword, and the selected DMRS, wherein the DMRS is transmitted in an orthogonal multiple access (OMA) scheme, the uplink data is transmitted in a non-orthogonal multiple access (NOMA) scheme, and the selected DMRS is one of the K DMRSs mapped to the selected codeword, wherein K may be an integer greater than or equal to 1, which is changed according to a DMRS collision occurring in the contention resource area.
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公开(公告)号:US10420062B2
公开(公告)日:2019-09-17
申请号:US15697400
申请日:2017-09-06
Applicant: LG ELECTRONICS INC.
Inventor: Myeongjin Kim , Sangrim Lee
Abstract: A method for a drone to measure a location of a user equipment in a wireless communication system can be provided according to one embodiment of the present specification. In this case, the method can include the steps of performing an initial access procedure with a base station, receiving SRS configuration information of the user equipment from the base station, receiving an SRS from the user equipment based on the SRS configuration information of the user equipment, and transmitting location measurement information, which is measured based on the received SRS, to the base station.
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公开(公告)号:US10117242B2
公开(公告)日:2018-10-30
申请号:US15411696
申请日:2017-01-20
Applicant: LG ELECTRONICS INC.
Inventor: Sangrim Lee , Kwangseok Noh , Dongkyu Kim , Hojae Lee , Myeongjin Kim
Abstract: A method of performing contention based multiple access (MA) by a base station in a wireless communication system, includes receiving information regarding a best beam ID (identifier) from each user equipment (UE), allocating a resource for contention based multiple access per beam based on a number of best beam ID per beam obtained from the information regarding the best beam ID received from the each UE, and transmitting information regarding the resource for the contention based multiple access allocated per beam, to the each UE. In this case, an amount of the resource allocated for the contention based multiple access per beam is in proportion to the number of best beam ID per beam.
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公开(公告)号:US11277812B2
公开(公告)日:2022-03-15
申请号:US16642821
申请日:2018-08-29
Applicant: LG ELECTRONICS INC.
Inventor: Myeongjin Kim , Sangrim Lee , Woonghee Lee
Abstract: A method whereby a user equipment transmits/receives a reference signal for distance measurement in a wireless communication system according to an embodiment of the present invention comprises: a step of receiving, from a base station, a downlink (DL) positioning reference signal (PRS) including sinusoidal components of different angular frequencies; a step of acquiring a phase difference between the sinusoidal components of the DL PRS; a step of transmitting a first uplink (UL) PRS indicating the phase difference, so as to measure a first distance between the user equipment and the base station at a first point of time; and a step of transmitting a second UL PRS so as to measure a second distance between the user equipment, the position of which has changed after the first point of time, and the base station, wherein the user equipment may configure the same phase difference, acquired via the DL PRS before the first point of time, for the second UL PRS, without receiving an additional DL PRS for measuring the second distance. The user equipment is capable of communicating with at least one of another user equipment, a user equipment related to an autonomous driving vehicle, the base station or a network.
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公开(公告)号:US11265123B2
公开(公告)日:2022-03-01
申请号:US16640980
申请日:2018-08-20
Applicant: LG Electronics Inc.
Inventor: Myeongjin Kim , Sangrim Lee
Abstract: A method for a terminal to transmit and receive signals for position estimation in a wireless communication system includes: receiving a downlink (DL) positioning reference signal (PRS) from each of a serving base station and reference base stations; measuring phase differences between sinusoidal components included in the DL PRSs for each of the serving base station and the reference base stations; generating an uplink (UL) PRS on the basis of the measured phase differences; and transmitting the UL PRS to the serving base station, wherein the terminal may report the phase difference measured for the serving base station and the phase differences measured for the reference base stations through the transmission of the UL PRS to the serving base station. The terminal is capable of communicating with at least one of another terminal, a terminal related to an autonomous driving vehicle, a base station or a network.
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公开(公告)号:US11206042B2
公开(公告)日:2021-12-21
申请号:US16492458
申请日:2017-03-09
Applicant: LG Electronics Inc.
Inventor: Kwangseok Noh , Dongkyu Kim , Myeongjin Kim , Sangrim Lee , Hojae Lee
Abstract: An improved layered decoding method for a low density parity check (LDPC) code and a device therefor are disclosed. Disclosed is the layered decoding method for an LDPC code, capable of determining whether decoding is successful by performing a syndrome check on each check node at every variable node update. In addition, the syndrome check can be performed by using reduced variable nodes, thereby reducing decoding power consumption and decoding time consumption.
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公开(公告)号:US10892859B2
公开(公告)日:2021-01-12
申请号:US16475776
申请日:2017-01-04
Applicant: LG Electronics Inc.
Inventor: Hojae Lee , Kwangseok Noh , Dongkyu Kim , Sangrim Lee , Myeongjin Kim
Abstract: A method in which a terminal performs a HARQ operation in a NoMA-based system comprises a step of receiving a downlink control information (dci) format comprising a multiple access (MA) signature field for supporting NoMA transmission; a step of receiving downlink data based on a value of the MA signature indicated by the MA signature field; and a step of transmitting an ACK/NACK signal with respect to the downlink data based on a subframe offset value, a frequency offset value, or a sequence index value, which are tied with the indicated value of the MA signature according to a predefined rule, wherein the subframe offset value comprises the subframe offset value between a reception subframe of the downlink data and a downlink HARQ feedback transmission subframe with respect to the downlink data, and wherein the frequency offset value indicates a frequency band used for transmitting the ACK/NACK signal.
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9.
公开(公告)号:US20200015218A1
公开(公告)日:2020-01-09
申请号:US16491013
申请日:2017-03-07
Applicant: LG Electronics Inc.
Inventor: Hojae Lee , Sangrim Lee , Dongkyu Kim , Myeongjin Kim , Kwangseok Noh
Abstract: A method for performing non-orthogonal multiple access (NOMA) scheme-based communication by a base station may comprise the steps of: determining at least one transmission data resource group on the basis of a scheduling request (SR) reception reliability; transmitting information on the determined at least one data resource group to a terminal; and receiving uplink data from the terminal via a predefined uplink data transmission area in the at least one data resource group, wherein the at least one data resource group and an SR resource group including an SR transmission area, in which an SR can be transmitted, are overlappingly allocated in a physical resource area, and the predefined uplink data transmission area within the at least one data resource group and the SR transmission area of the SR resource group overlap each other in the physical resource area.
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10.
公开(公告)号:US11178665B2
公开(公告)日:2021-11-16
申请号:US16491013
申请日:2017-03-07
Applicant: LG Electronics Inc.
Inventor: Hojae Lee , Sangrim Lee , Dongkyu Kim , Myeongjin Kim , Kwangseok Noh
Abstract: A method for performing non-orthogonal multiple access (NOMA) scheme-based communication by a base station may comprise the steps of: determining at least one transmission data resource group on the basis of a scheduling request (SR) reception reliability; transmitting information on the determined at least one data resource group to a terminal; and receiving uplink data from the terminal via a predefined uplink data transmission area in the at least one data resource group, wherein the at least one data resource group and an SR resource group including an SR transmission area, in which an SR can be transmitted, are overlappingly allocated in a physical resource area, and the predefined uplink data transmission area within the at least one data resource group and the SR transmission area of the SR resource group overlap each other in the physical resource area.
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