Patents by Inventor Daewon Lee

Daewon 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).

  • Publication number: 20190312710
    Abstract: In wireless communications for multi-users, an access point may generate a first frame for allocating resources to a plurality of stations. The first frame may contain an indication as to whether a station(s) is allocated at least one of a set of resource units (RUs) of a plurality of RUs, such as a center 26-tone RU. The set of resource units may be based on a channel bandwidth of the wireless communications. The indication may be contained in a common block field of signal fields, such as a common block field of high efficiency (HE) signal content channel(s) of an HE signal field. The station(s) may receive the first frame and determine whether the one of the set of RUs is allocated. The station(s) may transmit a second frame to the access point based on resource allocation information in the first frame. Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 10, 2019
    Inventors: Yujin NOH, Daewon LEE, Sungho MOON, Young Hoon KWON
  • Publication number: 20190268805
    Abstract: In wireless communications for a 20 megahertz (MHz) channel bandwidth, a first device may determine a high efficiency long training field (HE-LTF) mode. The first device may generate an HE-LTF symbol by using a portion or an entirety of an HE-LTF sequence corresponding to the channel bandwidth and HE-LTF mode. The first device may transmit, in the channel bandwidth, a high efficiency physical layer protocol data unit (HE PPDU) that includes the HE-LTF symbol. A second device may receive, in the 20 MHz channel bandwidth, a downlink HE PPDU that includes an HE-LTF symbol. The second device may obtain, from the HE-LTF symbol, a portion or an entirety of an HE-LTF sequence corresponding to the channel bandwidth and an HE-LTF mode of the HE-LTF symbol. The downlink HE PPDU may be the HE PPDU from the first device. Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Application
    Filed: May 7, 2019
    Publication date: August 29, 2019
    Inventors: Daewon LEE, Sungho MOON, Yujin NOH, Minho CHEONG
  • Publication number: 20190238377
    Abstract: In wireless communications for multi-users, an access point may transmit a first trigger frame to one or more stations. The first trigger frame may be for scheduling a first uplink multi-user transmission and may indicate a plurality of resources for indicating existence of data to be sent to the access point. The station(s) may process the first trigger frame received from the access point. In response to the first trigger frame, the station(s) may generate and transmit a respective first uplink frame to the access point. In some cases, the first uplink frame(s) from the station(s) does not have a data field and does have a signal indicating existence of data to be sent from the station(s) to the access point. The signal may be sent using a resource(s) of the plurality of resources. Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Application
    Filed: March 12, 2019
    Publication date: August 1, 2019
    Inventors: Daewon LEE, Sungho Moon, Ahmad Reza Hedayat, Yujin Noh
  • Patent number: 10348471
    Abstract: In wireless communications for multi-users, an access point may generate a first frame for allocating resources to a plurality of stations. The first frame may contain an indication as to whether a station(s) is allocated at least one of a set of resource units (RUs) of a plurality of RUs, such as a center 26-tone RU. The set of resource units may be based on a channel bandwidth of the wireless communications. The indication may be contained in a common block field of signal fields, such as a common block field of high efficiency (HE) signal content channel(s) of an HE signal field. The station(s) may receive the first frame and determine whether the one of the set of RUs is allocated. The station(s) may transmit a second frame to the access point based on resource allocation information in the first frame. Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: July 9, 2019
    Assignee: NEWRACOM, INC.
    Inventors: Yujin Noh, Daewon Lee, Sungho Moon, Young Hoon Kwon
  • Patent number: 10327172
    Abstract: In wireless communications for a 20 megahertz (MHz) channel bandwidth, a first device may determine a high efficiency long training field (HE-LTF) mode. The first device may generate an HE-LTF symbol by using a portion or an entirety of an HE-LTF sequence corresponding to the channel bandwidth and HE-LTF mode. The first device may transmit, in the channel bandwidth, a high efficiency physical layer protocol data unit (HE PPDU) that includes the HE-LTF symbol. A second device may receive, in the 20 MHz channel bandwidth, a downlink HE PPDU that includes an HE-LTF symbol. The second device may obtain, from the HE-LTF symbol, a portion or an entirety of an HE-LTF sequence corresponding to the channel bandwidth and an HE-LTF mode of the HE-LTF symbol. The downlink HE PPDU may be the HE PPDU from the first device. Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: June 18, 2019
    Assignee: Newracom, Inc.
    Inventors: Daewon Lee, Sungho Moon, Yujin Noh, Minho Cheong
  • Patent number: 10321475
    Abstract: Disclosed is a method for retransmitting scheduling assignment (SA) information between half-duplex user equipment in a wireless communication system. The method for retransmitting SA information may comprise the steps of: receiving, through a first resource area, a D2D signal including first SA information transmitted by a second user equipment, and second SA information transmitted by a third user equipment; if the target user equipment of the second SA information is the second user equipment, determining whether to retransmit the second SA information for the second user equipment; and if it is determined to retransmit the second information, transmitting the second information through a second resource area.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Youngtae Kim, Hanbyul Seo, Jihyun Lee, Seungmin Lee, Myoungseob Kim, Daewon Seo, Hyukjin Chae, Kijun Kim, Inkwon Seo
  • Patent number: 10313976
    Abstract: In wireless communications, an access point may send a first frame and a second frame to multiple stations. In one aspect, the first frame may be a frame for initiating a sounding protocol. The first frame may include subband-related information. In response to the first and second frames, one or more stations may generate beamforming feedback information based on content of the second frame according to the subband-related information of the first frame. The beamforming feedback information may include average signal-to-noise ratios (SNRs), where an SNR may be for a space-time stream averaged over data subcarriers in a subband. The stations may send a third frame(s) that includes the beamforming feedback information to the access point. The access point may generate, and transmit to the stations, a beamforming matrix based on the third frame(s). Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: June 4, 2019
    Assignee: NEWRACOM, INC.
    Inventors: Sungho Moon, Young Hoon Kwon, Daewon Lee, Yujin Noh
  • Patent number: 10298376
    Abstract: A method of generating a reference signal includes acquiring a base sequence and acquiring a reference signal sequence with a length N from the base sequence. Good PAPR/CM characteristics of the reference signal can be kept to enhance performance of data demodulation or uplink scheduling.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: May 21, 2019
    Assignee: Optis Cellular Technology, LLC
    Inventors: Seung Hee Han, Minseok Noh, Daewon Lee
  • Publication number: 20190140866
    Abstract: A method and user equipment for receiving channel status information-reference signals (CSI-RSs) from a base station (BS) in a wireless communication system, are discussed. The method includes receiving, through a higher layer, configuration about two or more CSI-RS; and receiving, from the BS, the CSI-RSs based on the configuration, wherein, when the configuration includes an indicator related to antenna ports of the two or more CSI-RS, the CSI-RSs are received on the assumption that the antenna ports for two or more CSI-RS resources are same.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 9, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Hanbyul SEO, Kijun KIM, Daewon LEE
  • Publication number: 20190140802
    Abstract: A method of a first cell for supporting a downlink channel demodulation at a user equipment, includes receiving, from a second cell, Multicast/Broadcast over Single Frequency Network (MBSFN) subframe configuration information for the second cell; and transmitting, by the first cell to the user equipment via a higher layer signaling, information on a Cell-specific Reference Signal (CRS) of the second cell including the MBSFN subframe configuration information of the second cell, wherein the information on the CRS of the second cell is used by the user equipment to mitigate the inter-cell interference from the CRS of the second cell.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 9, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Hanbyul SEO, Hakseong KIM, Inkwon SEO, Byounghoon KIM, Kijun KIM, Daewon LEE
  • Publication number: 20190140728
    Abstract: In wireless communications, an access point may transmit a first frame to one or more stations. In response to the first frame, the station(s) may transmit a respective second frame to the access point. The access point may generate a beamforming report based on the second frame(s) received by the access point from the station(s). The access point may transmit a third frame(s) that includes the beamforming report to the station(s). The station(s) may generate a respective beamforming matrix based at least on the third frame(s). Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 9, 2019
    Inventors: Sungho MOON, Young Hoon KWON, Daewon LEE
  • Patent number: 10274504
    Abstract: Disclosed is a microcapsule encoded depending on the kind of a target substance included therein. The encoded microcapsule has a hydrophilic liquid core including the target substance and a hydrophobic shell surrounding the liquid core. The encoded microcapsule includes graphical codes introduced on the surface of the shell.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: April 30, 2019
    Assignee: QUANTAMATRIX INC.
    Inventors: Sunghoon Kwon, Younghoon Song, Taehong Kwon, Daewon Lee, Junhoi Kim
  • Patent number: 10263821
    Abstract: In wireless communications for multi-users, an access point may transmit a first trigger frame to one or more stations. The first trigger frame may be for scheduling a first uplink multi-user transmission and may indicate a plurality of resources for indicating existence of data to be sent to the access point. The station(s) may process the first trigger frame received from the access point. In response to the first trigger frame, the station(s) may generate and transmit a respective first uplink frame to the access point. In some cases, the first uplink frame(s) from the station(s) does not have a data field and does have a signal indicating existence of data to be sent from the station(s) to the access point. The signal may be sent using a resource(s) of the plurality of resources. Other methods, apparatus, and computer-readable media are also disclosed.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 16, 2019
    Assignee: NEWRACOM, INC.
    Inventors: Daewon Lee, Sungho Moon, Ahmad Reza Hedayat, Yujin Noh
  • Patent number: 10264107
    Abstract: A method for transmitting a frame is provided by a device in a wireless communication network. The device compensates a carrier frequency using a value of carrier frequency offset (CFO), and transmits a frame with the compensated carrier frequency to a receiver. The value of the CFO is indicated in TXVECTOR. A method for transmitting a frame is provided by a device in a wireless communication network. The device allocates data tones for a last symbol based on a payload size, generates the last symbol having repeated waveforms and transmits a frame including at least one period waveform of the repeated waveforms in the last symbol.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: April 16, 2019
    Assignee: NEWRACOM, INC.
    Inventors: Heejung Yu, Daewon Lee, Young Hoon Kwon, Sungho Moon, Yujin Noh
  • Patent number: 10257324
    Abstract: The embodiments provide a method implemented by a network device for transmitting link adaptation feedback in a Wireless Local Area Network (WLAN) that supports multi-user simultaneous transmission. The method generates and transmits a frame that includes one or more link adaptation feedback values associated with a wireless communications link between the network device and a second network device. In one aspect, the one or more link adaptation feedback values may include a link adaptation feedback value for an entire operation bandwidth of the wireless communications link and a link adaptation feedback value for a given subchannel within the operation bandwidth. In another aspect, link adaptation feedback values for one or more users of a multi-user simultaneous transmission are transmitted in a multi-user acknowledgment (ACK) frame. The embodiments allow for efficient link adaptation in a multi-user simultaneous transmission environment.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: April 9, 2019
    Assignee: NEWRACOM, INC.
    Inventors: Daewon Lee, Yongho Seok, Yujin Noh, Sungho Moon, Minho Cheong
  • Patent number: 10254587
    Abstract: A liquid crystal display apparatus includes a first substrate, a color filter substrate disposed over the first substrate, and a liquid crystal layer disposed between the first substrate and the color filter substrate. The first substrate and the color filter substrate include a first sub-pixel region, a second sub-pixel region, and a third sub-pixel region. The color filter substrate includes: a second substrate facing the first substrate; an electrode pattern disposed over a surface of the second substrate, the surface facing the first substrate; a first light-converter disposed in association with the first sub-pixel region, the first light-converter including a first quantum rod; a second light-converter disposed in association with the second sub-pixel region, the second light-converter including a second quantum rod; and a third light-converter disposed in association with the third sub-pixel region.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: April 9, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunjin Kim, Sujeong Kim, Yiseop Shim, Daewon Lee, Chul Huh
  • Publication number: 20190081090
    Abstract: A display device includes a flexible substrate, a buffer layer on the flexible substrate and including an inorganic material, a display area including a plurality of pixels on the buffer layer and each including a pixel circuit including a first thin film transistor (TFT), a second TFT, and a storage capacitor and a display device connected to the pixel circuit, and a non-display area that is adjacent to the display area. The flexible substrate includes at least one base layer, at least one inorganic barrier layer, and a shielding layer including a portion having a certain area and an opening adjacent to the portion.
    Type: Application
    Filed: August 30, 2018
    Publication date: March 14, 2019
    Inventors: Daewon LEE, Hyesong KWUN, Kyongtae PARK, Donghoon JEONG, Kyusik CHO
  • Publication number: 20190044811
    Abstract: The disclosure describes configuration schemes for secondary cell (SCell), bandwidth part (BWP) and physical resource block (PRB) indexing. An apparatus of user equipment (UE) for BWP activation and deactivation operation is disclosed. The apparatus includes baseband circuitry that includes a radio frequency (RF) interface, and one or more processors. The one or more processors are to receive radio resource control (RRC) data via the RF interface, configure a timer for a BWP according to the RRC data, and trigger the timer for the BWP in response to detection of an event associated with an access node after the BWP has been activated.
    Type: Application
    Filed: September 6, 2018
    Publication date: February 7, 2019
    Inventors: Honglei MIAO, Jeongho JEON, Alexei DAVYDOV, Hong HE, Debdeep CHATTERJEE, Joonyoung CHO, Daewon LEE, Gang XIONG
  • Publication number: 20190044669
    Abstract: A scrambling sequence generation method is disclosed for reference signals, data, and downlink and uplink control channels. The scrambling sequence generation method determines an initial seed value used to calculate the scrambling sequence. The initial seed value is based on different parameters relating to the to be transmitted signals, and some of these parameters are explicitly defined for New Radio.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 7, 2019
    Applicant: INTEL IP CORPORATION
    Inventors: Alexei Davydov, Gang Xiong, Debdeep Chatterjee, Hong He, Gregory Morozov, Sameer Pawar, Yushu Zhang, Victor Sergeev, Dmitry Dikarev, Daewon Lee
  • Patent number: 10200214
    Abstract: A method is provided for computing a channel quality indicator (CQI) value by a user equipment in a wireless communication system. Channel status information-reference signal (CSI-RS) resources and zero power CSI-RS resources are configured through a higher layer. The CQI value is computed based on a channel measurement and an interference measurement. The channel measurement is performed by using the CSI-RS resources and the interference measurement is performed by using the zero power CSI-RS resources. If two CSI subframe sets are configured, the interference measurement for one CSI subframe set of the two CSI subframe sets is performed by using the zero power CSI-RS resources within a subframe subset belonging to the one CSI subframe set.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: February 5, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hanbyul Seo, Kijun Kim, Daewon Lee