Patents by Inventor Sangrim LEE

Sangrim LEE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10548115
    Abstract: A method for a terminal to transmit signals on the basis of a non-orthogonal multiple access scheme in a wireless communication system may comprise the steps of: receiving, from a base station, information about a codebook selected for the terminal in pre-defined non-orthogonal codebooks and control information including information about a codeword selected from the selected codebook; performing resource mapping on uplink data to be transmitted on the basis of information about the selected codebook and information about the codeword selected from the selected codebook; transmitting, to the base station, the uplink data mapped to the resource according to the resource mapping.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: January 28, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Hojae Lee, Sangrim Lee, Hyunsoo Ko, Kwangseok Noh, Dongkyu Kim
  • Patent number: 10548101
    Abstract: A method for accessing a millimeter wave cell by a terminal in a wireless communication system supporting a millimeter wave according to an embodiment of the present invention comprises the steps of: receiving a millimeter wave link connection configuration message from a legacy cell that is radio resource control (RRC)-connected to the terminal; measuring discovery signals from the millimeter wave cells located around the terminal on the basis of the millimeter wave link connection configuration message; and transmitting a first type random access preamble to one of the millimeter wave cells on the basis of a result of the measuring of the discovery signals, wherein the measuring of the discovery signals is performed on the basis of a signal detection wave form that is specifically configured for each millimeter wave cell.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: January 28, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Kukheon Choi, Hyunsoo Ko, Kwangseok Noh, Dongkyu Kim, Sangrim Lee
  • Publication number: 20200028611
    Abstract: Provided is a method and device for transmitting uplink data by using a non-orthogonal code multiple access scheme in a wireless communication system. Specifically, a terminal supporting multiple layers receives an NoMA MCS index from a base station. The NoMA MCS index is selected from an NoMA MCS table on the basis of the quality of an uplink channel. The NoMA MCS table is defined in advance as a table including the NoMA MCS index, the number of multiple layers, and a modulation order. The number of multiple layers is determined according to the NoMA MCS index. The terminal transmits the uplink data configured on the basis of the NoMA MCS index, via the multiple layers.
    Type: Application
    Filed: March 22, 2018
    Publication date: January 23, 2020
    Inventors: Hojae LEE, Sangrim LEE
  • Publication number: 20200022188
    Abstract: A method by which a terminal transmits an uplink signal in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: transmitting any one of a plurality of preambles; and performing a contention-based transmission of data in consideration of the transmitted preamble, wherein each of the plurality of preambles is linked with a plurality of data resource areas, and when the contention-based transmission of data is performed, the terminal can repeatedly transmit the data through the plurality of data resource areas linked with the transmitted preamble.
    Type: Application
    Filed: January 24, 2018
    Publication date: January 16, 2020
    Inventors: Sangrim LEE, Hojae LEE
  • Publication number: 20200015218
    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.
    Type: Application
    Filed: March 7, 2017
    Publication date: January 9, 2020
    Inventors: Hojae Lee, Sangrim Lee, Dongkyu Kim, Myeongjin Kim, Kwangseok Noh
  • Publication number: 20200008220
    Abstract: A method for transmitting, by a terminal, an uplink signal in a wireless communication system according to one embodiment of the present disclosure comprises the steps of: receiving, from a base station, scheduling request (SR) resource information and data resource information; transmitting an SR through any one of a UE-wise SR resource and a group-wise SR resource allocated through the SR resource information; and repeatedly transmitting uplink data through a plurality of resource areas allocated through the data resource information, wherein one UE-wise SR resource may be allocated to each first resource area set consisting of N resource areas, and at least one group-wise SR resource may be allocated to each resource area. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.
    Type: Application
    Filed: February 5, 2018
    Publication date: January 2, 2020
    Inventors: Sangrim LEE, Hojae LEE
  • Publication number: 20200008236
    Abstract: A method for a user equipment (UE) to transmit an uplink signal in a wireless communication system according to an embodiment of the present invention includes the steps of: determining a data transmission mode; and transmitting to a base station through a competition resource region, a control channel carrying control information including the data transmission mode, a data channel carrying at least one transmission block (TB), and a preamble, wherein the preamble indicates the position of a resource to which the control channel is mapped in the competition resource region, and the data transmission mode determined by the UE can correspond to one among a first transmission mode in which 1 TB is transmitted by being divided into N sub-blocks or a second transmission mode in which 1 TB is repeatedly transmitted M times. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, the base station or a network.
    Type: Application
    Filed: February 6, 2018
    Publication date: January 2, 2020
    Applicant: LG ELECTRONICS INC.
    Inventors: Sangrim LEE, Hojae LEE
  • Patent number: 10516514
    Abstract: Disclosed is a method for uplink transmission and reception in a wireless communication system and an apparatus therefor. Particularly, a method for performing uplink transmission by a user equipment (UE) in a wireless communication system includes: receiving sounding reference signal (SRS) resource configuration information form a base station, in which the SRS resource configuration information includes SRS resource information and association configuration information between a first SRS and a second SRS that is a target of the SRS resource configuration information; and transmitting precoded the second SRS to the base station on an SRS resource indicated by the SRS resource information, and the second SRS may be transmitted based on the precoding applied to the first SRS indicated by the association configuration information.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: December 24, 2019
    Assignee: LG Electronics Inc.
    Inventors: Jonghyun Park, Kijun Kim, Jiwon Kang, Haewook Park, Minki Ahn, Sangrim Lee
  • Patent number: 10516495
    Abstract: The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. A method for a terminal to measure interference in a wireless communication system supporting FDR according to an embodiment of the present invention comprises the steps of: receiving an interference measurement resource at a measurement subframe; and measuring, at the interference measurement resource, interference from a neighboring terminal on the basis of an interference reference signal transmitted from the neighboring terminal. In addition, data is not transmitted or is transmitted with zero-power in the interference measurement resource.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: December 24, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kwangseok Noh, Jaehoon Chung, Genebeck Hahn, Eunjong Lee, Jinmin Kim, Kukheon Choi, Sangrim Lee
  • Publication number: 20190380056
    Abstract: A method for measuring and reporting, by a terminal, a positioning reference signal (PRS) in a wireless communication system according to one embodiment of the present invention comprises the steps of: measuring a plurality of positioning reference signals (PRSs) to which beamforming is applied; and reporting, to a base station, measurement results for at least two of the plurality of PRSs, wherein the plurality of PRSs are received via different transmission beams, and the terminal may report, to the base station, at least one from among transmission beam identification information indicating through which transmission beam each of the at least two PRSs has been received and resource identification information indicating through which resource each of the at least two PRSs has been received, together with the measurement results. 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.
    Type: Application
    Filed: February 26, 2018
    Publication date: December 12, 2019
    Inventors: Sangrim Lee, Myeongjin Kim, Hojae Lee, Minki Ahn
  • Publication number: 20190379501
    Abstract: Disclosed is a method for uplink transmission and reception in a wireless communication system and an apparatus therefor. Particularly, a method for performing uplink transmission by a user equipment (UE) in a wireless communication system includes: receiving sounding reference signal (SRS) resource configuration information form a base station, in which the SRS resource configuration information includes SRS resource information and association configuration information between a first SRS and a second SRS that is a target of the SRS resource configuration information; and transmitting precoded the second SRS to the base station on an SRS resource indicated by the SRS resource information, and the second SRS may be transmitted based on the precoding applied to the first SRS indicated by the association configuration information.
    Type: Application
    Filed: January 8, 2018
    Publication date: December 12, 2019
    Inventors: Jonghyun PARK, Kijun KIM, Jiwon KANG, Haewook PARK, Minki AHN, Sangrim LEE
  • Patent number: 10506610
    Abstract: The present invention relates to a method and apparatus for allocating a resource by a base station in a wireless communication system supporting full-duplex communication. Specifically, the present invention comprises the steps of: transmitting, to a plurality of UEs, measurement information including time information and information on candidate sub-bands for measuring inter-device interference (IDI); receiving, from the plurality of UEs, IDI measurement results measured according to the measurement information; and performing resource allocation for the plurality of UEs on the basis of the IDI measurement results, wherein the information on candidate sub-bands includes at least one candidate sub-band configured for each of the plurality of UEs on the basis of channel measurement between the base station and the corresponding UE.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: December 10, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kwangseok Noh, Hyunsoo Ko, Kukheon Choi, Dongkyu Kim, Sangrim Lee
  • Patent number: 10506533
    Abstract: The present invention provides a method for hybrid scanning to reduce overhead in a beam scanning scheme in a millimeter wave (mmWave) system, and devices supporting same. The method for hybrid scanning in a wireless access system supporting millimeter wave technology, according to one embodiment of the present invention, comprises the steps of: receiving a synchronization signal to synchronize with a base station; synchronizing with the base station using the synchronization signal; receiving, from the base station, first pilot signals having different configuration patterns according to each transmitting antenna; ray-scanning using the first pilot signals; selecting a candidate beamforming port set through the ray-scanning; generating second pilot signals having different configuration patterns according to each beamforming port included in the candidate beamforming port set; and transmitting, to the base station, the second pilot signals to perform beam scanning with the base station.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: December 10, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kukheon Choi, Jaehoon Chung, Genebeck Hahn, Eunjong Lee, Jinmin Kim, Kwangseok Noh, Sangrim Lee
  • Patent number: 10506545
    Abstract: The present invention provides a scanning method to reduce overhead in a millimeter wave (mmWave) scanning scheme by using position information of a terminal in a mmWave system, and devices supporting same.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: December 10, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kukheon Choi, Hyunsoo Ko, Kwangseok Noh, Dongkyu Kim, Sangrim Lee
  • Publication number: 20190372742
    Abstract: A method and device for receiving downlink data in a wireless communication system are discussed. The method performed by a terminal includes receiving, from a base station, first downlink control information through a physical downlink control channel (PDCCH) or a short PDCCH (sPDCCH), wherein the first downlink control information schedules a plurality of short physical downlink shared channel (sPDSCH) regions based on a first transmission time interval (TTI)-based radio frame structure, and each of the plurality of the sPDSCH regions is included in a different plurality of short subframes based on the first TTI-based radio frame structure, respectively; and receiving, from the base station, first downlink data in the plurality of the sPDSCH regions based on the first downlink control information, wherein the first TTI-based radio frame structure has a shorter interval than a second TTI-based radio frame structure for the PDSCH region in which second downlink data is transmitted.
    Type: Application
    Filed: August 16, 2019
    Publication date: December 5, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Eunjong LEE, Jaehoon CHUNG, Genebeck HAHN, Jinmin KIM, Kukheon CHOI, Kwangseok NOH, Sangrim LEE
  • Patent number: 10491289
    Abstract: Disclosed herein is a method of transmitting a signal at a relay user equipment (UE) in a wireless communication system. The method includes receiving uplink data for relay from a first UE, performing superposition coding with respect to the uplink data and sidelink data to be transmitted to a second UE through a sidelink to generate an uplink relay signal, and transmitting the uplink relay signal to a base station and the second UE.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: November 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangwook Han, Sangrim Lee, Hojae Lee, Gwanmo Ku
  • Patent number: 10491429
    Abstract: A method for estimating a nonlinear self-interference channel in a wireless channel system, according to the present invention, can further comprise the steps of: applying a first sequence to a first symbol; applying, to a second symbol, a sequence of which a phase is shifted from that of the first sequence by ?/2; and transmitting the first symbol and the second symbol.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: November 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangrim Lee, Dongkyu Kim, Hyunsoo Ko, Kwangseok Noh, Hojae Lee
  • Patent number: 10491362
    Abstract: This method for a communication device to transmit/receive signals by using a TDD scheme in a wireless communication system may comprise the steps of: receiving information related to a guard period (GP) position in a data zone of a particular subframe; receiving downlink data in the data zone of the particular subframe on the basis of the information related to the GP position; and transmitting uplink data in the data zone of the particular subframe on the basis of the information related to the GP position.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: November 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangrim Lee, Hojae Lee, Kwangseok Noh, Dongkyu Kim
  • Patent number: 10492201
    Abstract: The document relates to a method for performing communication using multiple transmission time interval (TTI) structures in a wireless communication system. In this method, a terminal transmits and receives a signal through a resource region in which a first subframe corresponding to a TTI (short TTI) of a first length and a second subframe corresponding to a TTI (short TTI) of a second length longer than the first length are multiplexed in a frequency divisional multiplexing (FDM) manner, and when a second link direction of a signal transmitted through the second subframe in a specific time interval is different from a first link direction of a signal transmitted through the first subframe, the specific time interval of the second subframe is not used for signal transmission in the second link direction.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: November 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyunsoo Ko, Kwangseok Noh, Dongkyu Kim, Sangrim Lee, Hojae Lee
  • Publication number: 20190356423
    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.
    Type: Application
    Filed: January 4, 2017
    Publication date: November 21, 2019
    Inventors: Hojae Lee, Kwangseok Noh, Dongkyu Kim, Sangrim Lee, Myeongjin Kim