Patents by Inventor Yu Jin Noh

Yu Jin Noh 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: 9800309
    Abstract: A method and apparatus for allowing a UE to transmit uplink signals using a MIMO scheme are disclosed. In order to maintain good Peak power to Average Power Ratio (PAPR) or Cubic Metric (CM) properties when the UE transmits uplink signals using the MIMO scheme, the UE uses a precoding scheme based on a precoding matrix established in a manner that one layer is transmitted to each antenna in specific rank transmission.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: October 24, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Yu Jin Noh, Ki Jun Kim, Dong Wook Roh, Byeong Woo Kang, Dae Won Lee, Bong Hoe Kim, Dong Youn Seo
  • Patent number: 9794032
    Abstract: Provided is a method of receiving a physical layer convergence procedure (PLCP) protocol data unit (PPDU) by an access point (AP) in a wireless local area (LAN) system. The method includes: allocating a first transmission channel bandwidth to a first station (STA) which is multiple input multiple output (MIMO)-paired with the AP; allocating a second transmission channel bandwidth to a second STA which is MIMO-paired with the AP; transmitting to the first STA and the second STA a sync trigger for determining a time point at which the first STA transmits a first PPDU and a time point at which the second STA transmits a second PPDU; and receiving simultaneously the first PPDU and the second PPDU from the first STA and the second STA.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: October 17, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Byeong Woo Kang, Yu Jin Noh, Dae Won Lee, Yong Ho Seok
  • Patent number: 9793966
    Abstract: A link adaptation method performed by a station (STA) in a wireless local area network (LAN) system supporting multi-user multiple-input multiple-output (MU-MIMO) is provided. The method includes: receiving a modulation and coding scheme (MCS) request, a steered sounding physical layer convergence procedure (PLOP) protocol data unit (PPDU) which is beam-formed to the STA, and a MIMO indicator including MU-MIMO-related information from an access point (AP); and transmitting feedback information including an MCS acquired from the steered sounding PPDU and the MU-MIMO-related information to the AP in response to the MCS request.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: October 17, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Yong Ho Seok, Yu Jin Noh, Bong Hoe Kim, Dae Won Lee
  • Publication number: 20170288836
    Abstract: A method of transmitting a training signal in a Wireless Local Area Network (WLAN) system includes generating one or more first training signals for a first destination station and one or more second training signals for a second destination station by applying a mapping matrix P to a training signal generation sequence, mapping the first training signals and the second training signals to a plurality of antennas according to an antenna mapping matrix, and performing Inverse Fast Fourier Transform (IFFT) on each of the first training signals and the second training signals mapped to the plurality of antennas and transmitting the training signals through the plurality of antennas.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 5, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Byeong Woo KANG, Dong Wook ROH, Yong Ho SEOK, Yu Jin NOH, Bong Hoe KIM, Dae Won LEE
  • Patent number: 9780923
    Abstract: The present invention relates to a method and apparatus for acknowledgement (ACK) transmission in a WLAN. A station receives a plurality of data frames from a plurality of other stations and then transmits an ACK for the plurality of data frames to the plurality of stations. The ACK is a multi-user (MU) block ACK frame which includes a plurality of block ACKs for the plurality of stations. One block ACK includes at least one ACK for at least one data frame that is received from one station.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: October 3, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Yu Jin Noh, Dae Won Lee, Yong Ho Seok
  • Patent number: 9755718
    Abstract: A method and apparatus for allowing a UE to transmit uplink signals using a MIMO scheme are disclosed. In order to maintain good Peak power to Average Power Ratio (PAPR) or Cubic Metric (CM) properties when the UE transmits uplink signals using the MIMO scheme, the UE uses a precoding scheme based on a precoding matrix established in a manner that one layer is transmitted to each antenna in specific rank transmission.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: September 5, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Yu Jin Noh, Ki Jun Kim, Dong Wook Roh, Byeong Woo Kang, Dae Won Lee, Bong Hoe Kim, Dong Youn Seo
  • Patent number: 9749025
    Abstract: A method and a radio apparatus for signal transmission in a Wireless Local Area Network (WLAN) system are discussed. The method according to an embodiment includes generating first and second very high throughput (VHT) fields including first and second control information, respectively; and transmitting a physical layer protocol data unit (PPDU) including the first and second VHT fields to at least one target station. The first VHT field includes an indicator indicating whether the PPDU is to be transmitted by using a single-user multiple input multiple output (SU-MIMO) scheme or a multi-user multiple input multiple output (MU-MIMO) scheme.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: August 29, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Dae Won Lee, Dong Wook Roh, Byeong Woo Kang, Yong Ho Seok, Yu Jin Noh, Bong Hoe Kim
  • Publication number: 20170245299
    Abstract: A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated.
    Type: Application
    Filed: May 10, 2017
    Publication date: August 24, 2017
    Inventors: Hak Seong Kim, Ki Jun Kim, Yu Jin Noh, Dae Won Lee, Bong Hoe Kim
  • Publication number: 20170230973
    Abstract: A method is provided for transmitting a data frame by a station in a wireless local area network. The station obtains a transmission opportunity (TXOP) for a bandwidth, the TXOP indicating an interval of time during which the station has a right to initiate frame exchange sequences onto wireless medium. The station sets a transmit bandwidth parameter of a non-initial physical layer protocol data unit (PPDU) of a plurality of PPDUs to be transmitted during the TXOP based on a transmit bandwidth parameter of a preceding PPDU of the plurality of PPDUs. The transmit bandwidth parameter of the non-initial PPDU is set to be same or narrower than the transmit bandwidth parameter of the preceding PPDU. A bandwidth indicated by the transmit bandwidth parameter of the non-initial PPDU or the preceding PPDU includes at least one of 20 MHz, 40 MHz and 80 MHz. The station transmits the non-initial PPDU during the TXOP.
    Type: Application
    Filed: April 25, 2017
    Publication date: August 10, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Yu Jin NOH, Byeong Woo KANG, Dae Won LEE, Yong Ho SEOK
  • Publication number: 20170230909
    Abstract: A communication method that includes transmitting a power save multi-poll (PSMP) frame containing a power save mode (PSM) of a non-access point (AP) station (STA) to a first station and to a second station which are paired with an AP on the basis of multiple input multiple output (MIMO) technology. Information on the PSM indicates the point in time of starting a downlink transmission period, the duration of the downlink transmission period, and transmission object station identification information. The method further involves transmitting a data frame to the first station and to the second station on the basis of the MIMO technology during the downlink transmission period. The transmission object station identification information indicates a group identifier for indicating an object station group including the first station and the second station.
    Type: Application
    Filed: April 26, 2017
    Publication date: August 10, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Yu Jin Noh, Dae Won LEE, Yong Ho Seok
  • Patent number: 9716574
    Abstract: A method of transmitting a training signal in a Wireless Local Area Network (WLAN) system includes generating one or more first training signals for a first destination station and one or more second training signals for a second destination station by applying a mapping matrix P to a training signal generation sequence, mapping the first training signals and the second training signals to a plurality of antennas according to an antenna mapping matrix, and performing Inverse Fast Fourier Transform (IFFT) on each of the first training signals and the second training signals mapped to the plurality of antennas and transmitting the training signals through the plurality of antennas.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: July 25, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Byeong Woo Kang, Dong Wook Roh, Yong Ho Seok, Yu Jin Noh, Bong Hoe Kim, Dae Won Lee
  • Publication number: 20170207798
    Abstract: A method for channel-coding information bits using a code generation matrix including 32 rows and A columns corresponding to length of the information bits includes, channel-coding the information bits having “A” length using basis sequences having 32-bit length corresponding to columns of the code generation matrix, and outputting the channel-coded result as an output sequence. If “A” is higher than 10, the code generation matrix is generated when (A-10) additional basis sequences were added as column-directional sequences to a first or second matrix. The first matrix is a TFCI code generation matrix composed of 32 rows and 10 columns used for TFCI coding. The second matrix is made when at least one of an inter-row location or an inter-column location of the first matrix was changed. The additional basis sequences satisfy a value 10 of a minimum Hamming distance.
    Type: Application
    Filed: April 3, 2017
    Publication date: July 20, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Wook ROH, Joon Kui AHN, Nam Yul YU, Jung Hyun CHO, Yu Jin NOH, Ki Jun KIM, Dae Won LEE
  • Patent number: 9713153
    Abstract: A method for communicating in a wireless local area network, and a device therefore are discussed. The method according to one embodiment includes selecting, by a transmitting station, a transmission channel; and transmitting, by the transmitting station, a Physical layer Protocol Data Unit (PPDU) over the selected transmission channel to a receiving station. The transmission channel includes a primary channel and a first channel if the first channel was idle. The transmission channel includes the primary channel, the first channel and a second channel if both the first channel and the second channel were idle. The primary channel is positioned between the first channel and the second channel if the transmission channel includes the primary channel, the first channel and the second channel.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: July 18, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Yu Jin Noh, Yong Ho Seok, Bong Hoe Kim, Dae Won Lee
  • Publication number: 20170187486
    Abstract: A method of receiving a packet in a wireless local area network system includes receiving, from an access point (AP), a packet comprising a data field and a first signal field including a first field, a second field, and a third field, wherein the packet is generated for a single receiving station or a plurality of receiving stations; and processing the packet based on the first signal field, wherein the first field indicates a group ID of the single receiving station or the plurality of receiving stations and whether the packet is generated based on a single user transmission scheme or a multi user transmission scheme, wherein, for the single user transmission scheme, at least one pre-determined value of the first field is used to indicate that the packet is generated based on the single user transmission scheme.
    Type: Application
    Filed: March 15, 2017
    Publication date: June 29, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Dae Won LEE, Byeong Woo KANG, Yu Jin NOH, Yong Ho SEOK, Dong Wook ROH
  • Patent number: 9680557
    Abstract: A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: June 13, 2017
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Ki Jun Kim, Yu Jin Noh, Dae Won Lee, Bong Hoe Kim
  • Patent number: 9673879
    Abstract: A communication method that includes transmitting a power save multi-poll (PSMP) frame containing a power save mode (PSM) of a non-access point (AP) station (STA) to a first station and to a second station which are paired with an AP on the basis of multiple input multiple output (MIMO) technology. Information on the PSM indicates the point in time of starting a downlink transmission period, the duration of the downlink transmission period, and transmission object station identification information. The method further involves transmitting a data frame to the first station and to the second station on the basis of the MIMO technology during the downlink transmission period. The transmission object station identification information indicates a group identifier for indicating an object station group including the first station and the second station.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: June 6, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Yu Jin Noh, Dae Won Lee, Yong Ho Seok
  • Patent number: 9661629
    Abstract: A method of transmitting a data frame by a station in a wireless local area network (WLAN), A station obtains a transmission opportunity (TXOP) for a bandwidth. The TXOP indicates an interval of time during which the station has a right to initiate frame exchange sequences onto a wireless medium. The station selects a transmit bandwidth parameter of a non-initial data unit of a plurality of data units from available bandwidth parameters. The available bandwidth parameters include a first available bandwidth parameter which is same as a transmit bandwidth parameter of a preceding data unit of the plurality of data units and a second available bandwidth parameter which is narrower than a transmit bandwidth parameter of the preceding data unit. The station transmits, during the TXOP, the non-initial data unit according to the transmit bandwidth parameter of the non-initial data unit.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 23, 2017
    Assignee: LG Electronics Inc.
    Inventors: Yu Jin Noh, Byeong Woo Kang, Dae Won Lee, Yong Ho Seok
  • Publication number: 20170142719
    Abstract: A method for efficiently scheduling virtual resource blocks to physical resource blocks is disclosed. In a wireless mobile communication system, for distributed mapping of consecutively allocated virtual resource blocks to physical resource blocks, when nulls are inserted into a block interleaver used for the mapping, they are uniformly distributed to ND divided groups of the block interleaver, which are equal in number to the number (ND) of physical resource blocks to which one virtual resource block is mapped.
    Type: Application
    Filed: February 1, 2017
    Publication date: May 18, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Youn SEO, Joon Kui AHN, Yu Jin NOH, Jung Hoon LEE, Bong Hoe KIM
  • Patent number: 9647796
    Abstract: A method for channel-coding information bits using a code generation matrix including 32 rows and A columns corresponding to length of the information bits includes, channel-coding the information bits having “A” length using basis sequences having 32-bit length corresponding to columns of the code generation matrix, and outputting the channel-coded result as an output sequence. If “A” is higher than 10, the code generation matrix is generated when (A-10) additional basis sequences were added as column-directional sequences to a first or second matrix. The first matrix is a TFCI code generation matrix composed of 32 rows and 10 columns used for TFCI coding. The second matrix is made when at least one of an inter-row location or an inter-column location of the first matrix was changed. The additional basis sequences satisfy a value 10 of a minimum Hamming distance.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 9, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Wook Roh, Joon Kui Ahn, Nam Yul Yu, Jung Hyun Cho, Yu Jin Noh, Ki Jun Kim, Dae Won Lee
  • Publication number: 20170118316
    Abstract: A method for transmitting data in a wireless local area network, the method comprising: receiving, by a receiving station, a physical layer protocol data unit (PPDU) from a transmitting station, the PPDU including a signal-A field, the signal-A field including a bandwidth in which the PPDU is received, decoding the PPDU, wherein, when the PPDU is used for single-user (SU) transmission, the PPDU is decoded with assuming that the PPDU does not include a signal-B field, and, when the PPDU is used for multi-user (MU) transmission, the PPDU is decoded with assuming that the PPDU include the signal-B field, and wherein the signal-B field includes a modulation and coding scheme (MCS) used for the receiving station.
    Type: Application
    Filed: January 3, 2017
    Publication date: April 27, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Dae Won LEE, Yu Jin NOH, Byeong Woo KANG, Yong Ho SEOK