Patents by Inventor Suhwook Kim

Suhwook Kim 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).

  • METHOD FOR TRANSMITTING UPLINK FRAME IN WIRELESS LAN SYSTEM AND WIRELESS DEVICE USING THE SAME
    Publication number: 20190373620
    Abstract: A method for a wireless local area network (WLAN) system is discussed.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 5, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Kiseon RYU, Suhwook KIM, Jeongki KIM, Hyunhee PARK
  • Method for supporting multi-BSS in wireless LAN system and device therefor
    Patent number: 10485028
    Abstract: A method by which an access point (AP) supports multi-basic service sets (BSSs) in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: setting a plurality of BSS identifiers for each individual BSS belonging to the multi-BSSs; and transmitting a frame for notifying a station (STA) of the plurality of BSS identifiers set for each individual BSS, wherein the plurality of BSS identifiers include a first BSS identifier and a second BSS identifier, which has a length shorter than that of the first BSS identifier, and the first BSS identifier is set to different values for each individual BSS, but the second BSS identifier can be set to the same value for all of the multi-BSSs.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: November 19, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jeongki Kim, Kiseon Ryu, Jinyoung Chun, Jinsoo Choi, Suhwook Kim, Hangyu Cho
  • METHOD FOR TRANSMITTING OR RECEIVING WAKE-UP RADIO PACKET IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR
    Publication number: 20190349857
    Abstract: A method for transmitting, by an access point (AP), a wake-up radio (WUR) packet in a wireless local area network (WLAN) system, according to an embodiment of the present invention, comprises the steps of: setting a MAC header comprising at least two of type information of the WUR packet, receiver address information, and transmitter address information; and transmitting the WUR packet comprising the MAC header, wherein in setting the MAC header, when the WUR packet is a broadcast WUR packet, the AP omits the receiver address information from the MAC header and sets the transmitter address information, and wherein whether or not an STA belonging to the AP should perform a primary connectivity radio (PCR)-on procedure after receiving the broadcast WUR packet may be instructed through the type information of the WUR packet.
    Type: Application
    Filed: November 27, 2017
    Publication date: November 14, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Jeongki KIM, Kiseon RYU, Suhwook KIM, Hyunhee PARK, Hangyu CHO, Jinsoo CHOI
  • Method and apparatus for transmitting frame
    Patent number: 10476648
    Abstract: Disclosed are a method and apparatus for transmitting a frame. A method for transmitting a frame in a wireless LAN comprises the steps of: an AP transmitting a first RTS frame, through a primary channel, to a plurality of first target STAs; the AP receiving, from one target STA from among the plurality of first target STAs, a first CTS frame as a response to the first RTS frame, through the primary channel; and the AP transmitting, to the plurality of first target STAs, a plurality of pieces of first downlink data for each of the respective plurality of first target STAs, through a plurality of first subbands included in the primary channel on one first data frame, wherein a first RTS frame may include identification information for each of the plurality of first target STAs.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: November 12, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Suhwook Kim, Kiseon Ryu, Wookbong Lee, Jeongki Kim
  • Method for accessing wireless medium in wireless local area network and wireless device using the same
    Patent number: 10477451
    Abstract: According to an embodiment of the present specification, a method for accessing a wireless medium in a wireless local area network (LAN) system includes: receiving, by a wireless device, from an access point (AP) a packet including identification information indicating a receiving device which solicits a response frame, wherein the identification information is information included in a physical layer (PHY) header of the packet, the packet includes a broadcast frame, and the broadcast frame includes duration information indicating a time for deferring the access to the wireless medium; and if the wireless device is not the receiving device indicated by the identification information, setting, by the wireless device, a network allocation vector (NAV) on the basis of the duration information.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: November 12, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Suhwook Kim, Kiseon Ryu, Hyunhee Park, Jeongki Kim, Hangyu Cho
  • Method and apparatus for performing uplink transmission in wireless LAN system
    Patent number: 10470186
    Abstract: Proposed is a method for determining transmission using a network allocation vector (NAV) in a wireless LAN system. Specifically, after a receiving device receives a trigger frame, which triggers an uplink multiple user transmission, from a transmitting device, whether to transmit an uplink physical layer protocol data unit (PPDU) corresponding to the trigger frame is determined using the NAV of the receiving device. In this case, if the NAV is established by an intra-basic service set (BSS) frame, whether to transmit the uplink PPDU is determined without taking the NAV into consideration.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: November 5, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kiseon Ryu, Jeongki Kim, Hangyu Cho, Suhwook Kim
  • UPLINK MULTI-USER TRANSMISSION METHOD IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR
    Publication number: 20190327749
    Abstract: The present document relates to a method for efficiently performing uplink multi-user transmission in a wireless LAN system and an apparatus therefor. To this end, an access point (AP) may transmit a downlink multi-user frame to a plurality of STAs, receive an uplink frame including an acknowledgement/non-acknowledgement (ACK/NACK) signal for the downlink multi-user frame and an uplink scheduling request signal from at least two STAs among the STAs, transmit a downlink frame including uplink scheduling information to the at least two STAs on the basis of the uplink scheduling request signal, and receive an uplink multi-user frame including data from the at least two STAs in response thereto. Here, an SIG field of the downlink frame preferably comprises an indicator indicating that the downlink frame includes uplink multi-user scheduling information.
    Type: Application
    Filed: April 26, 2019
    Publication date: October 24, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Jeongki KIM, Kiseon RYU, Giwon PARK, Suhwook KIM, Hangyu CHO
  • Method of supporting for uplink multi-user transmission in wireless area network system
    Patent number: 10455557
    Abstract: A method for a WLAN system of the present invention comprises receiving, by an AP, a request frame requesting change of operating mode of a receiving STA associated with the AP from the receiving STA, wherein the request frame includes a control indicator indicating whether the receiving STA participates in UL MU MIMO transmission, and transmitting a trigger frame for a plurality of user STAs participating in the UL MU MIMO transmission based on the request frame, wherein the trigger frame includes identification information for the plurality of user STAs, resource allocation information for allocation of uplink frequency resources allocated individually for the plurality of user STAs, time information indicating a time interval during which the UL MU MIMO transmission is performed, and coding information indicating a channel coding scheme allocated for each of the plurality of user STAs.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 22, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyunhee Park, Kiseon Ryu, Jeongki Kim, Hangyu Cho, Suhwook Kim
  • Method and apparatus for changing operating mode in wireless local area network system
    Patent number: 10455556
    Abstract: This specification proposes a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. More specifically, a first station transmits request information requesting for a change in the operating mode to a second station. The first station transmits a first PPDU supporting a first wireless LAN system to the second station based on the request information. The first station receives a Block ACK (BA) as a response to the first PPDU. The request information includes delay time information indication a time during which indication information is applied.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: October 22, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyunhee Park, Kiseon Ryu, Jeongki Kim, Hangyu Cho, Suhwook Kim
  • Method and device for enabling station to receive signal in wireless communication system
    Patent number: 10440751
    Abstract: The present disclosure relates to a method of receiving, by a station that operates in a wireless LAN system, a signal in a wireless communication system. In this case, it is possible to include the steps of receiving a PPDU that includes an MAC frame, decoding the MAC frame, and checking information in the MAC frame based on the MAC header of the MAC frame that includes a first address field and a second address field. In this case, when the PPDU includes the identification information (ID) of a station, the MAC header may include only one of any of the first address field and the second address field.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: October 8, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jeongki Kim, Kiseon Ryu, Giwon Park, Suhwook Kim, Hangyu Cho
  • Method for performing power management in wireless LAN system and wireless device using the same
    Patent number: 10440649
    Abstract: Disclosed herein is a method for performing power management in a wireless LAN system and a wireless device using the same, wherein the method may include the steps of receiving, by a first wireless device, a beacon frame including a first time wake time (TWT) flow identifier (TWT FID) indicating a type of first recommendation frame authorized to be transmitted during a first TWT service period and a second TWT flow identifier (TWT FID) indicating a type of second recommendation frame authorized to be transmitted during a second TWT service period, from a second wireless device, after receiving the beacon frame, shifting, by the first wireless device, from an awake state to a doze state, and receiving, by the first wireless device, a change frame for changing the second TWT flow identifier during the first TWT service period from the second wireless device.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: October 8, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyunhee Park, Kiseon Ryu, Suhwook Kim, Jeongki Kim, Jinsoo Choi
  • METHOD FOR TRANSMITTING/RECEIVING SIGNAL IN WIRELESS LAN SYSTEM AND DEVICE THEREFOR
    Publication number: 20190306837
    Abstract: A method for a station (STA) not having an association identifier (AID) allocated thereto transmitting a signal in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: transmitting a first frame through at least one resource among resources indicated by a trigger frame; and receiving a multi-STA block Ack (M-BA) frame as a reply to the first frame, wherein, if in the M-BA frame a MAC address of the STA that is different from a first information is detected from at least a part of a first field reserved for the first information, an N-bit of a second field preceding the first field is set as a temporary AID of the STA.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 3, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyeyoung CHOI, Kiseon RYU, Jeongki KIM, Hangyu CHO, Suhwook KIM
  • Method and apparatus for changing operating mode in wireless local area network system
    Patent number: 10433158
    Abstract: The specification proposes a signal processing method for changing an operating mode for configuring a PPDU in a wireless LAN system. More specifically, a change in the operating mode may be carried out during a time interval known to both a transmitting station and a receiving station. The time interval during which the change in the operating mode is carried out may be explicitly signaled or implicitly notified. For example, in case a change to a new operating mode is requested during a transmission opportunity (TXOP), the change in the operating mode may be delayed until a subsequent TXOP, and the new operating mode may be applied during the subsequent TXOP.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 1, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kiseon Ryu, Jeongki Kim, Suhwook Kim
  • Method and device for recovering error without retransmission of data frame in wireless LAN
    Patent number: 10432354
    Abstract: Disclosed are a method and a device for recovering an error without the retransmission of a data frame in a wireless LAN. The method for recovering an error in a wireless LAN may comprise the steps in which: a sender STA transmits a data frame to a receiver STA; if the sender STA does not receive a block ACK frame of the data frame from the receiver STA, the sender STA determines the reason for the non-reception of the data frame; if the sender STA determines that the reason for the non-reception of the data frame is the failure of transmission of the block ACK frame after the receiver STA receives the data frame, the sender STA transmits a PBAR data frame to the receiver STA; and the sender STA receives a PBAR block ACK frame from the receiver STA as a response to the PBAR data frame.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: October 1, 2019
    Assignee: LG Electronics Inc.
    Inventors: Suhwook Kim, Kiseon Ryu, Jinyoung Chun, Wookbong Lee, Jeongki Kim, Hangyu Cho
  • Method for transmitting data in wireless communication system and apparatus therefor
    Patent number: 10433337
    Abstract: A method for performing, by a station (STA) apparatus, uplink (UL) multi-user (MU) transmission in a wireless communication system according to an embodiment of the present invention includes performing carrier sensing on a channel, receiving a trigger frame including information for UL MU transmission and a carrier sense indicator indicating whether a result of the carrier sensing is to be reflected from an access point (AP), and transmitting an UL MU frame through the channel based on the information for UL MU transmission. The UL MU frame is transmitted through the channel based on a result of the carrier sensing if the carrier sense indicator indicates the reflection of a result of the carrier sensing. The UL MU frame is transmitted through the channel regardless of a result of the carries sensing if the carrier sense indicator does not indicate the reflection of a result of the carrier sensing.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: October 1, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyeyoung Choi, Kiseon Ryu, Jeongki Kim, Hangyu Cho, Suhwook Kim
  • METHOD AND DEVICE FOR TRIGGERING PLURALITY OF PS-POLL FRAMES IN WIRELESS LAN
    Publication number: 20190297567
    Abstract: Disclosed are a method and a device for triggering a plurality of PS-poll frames in a wireless LAN.
    Type: Application
    Filed: June 14, 2019
    Publication date: September 26, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Giwon PARK, Kiseon RYU, Jeongki KIM, Hangyu CHO, Suhwook KIM
  • Method and apparatus for processing ACK signal in a wireless local area network system
    Patent number: 10425209
    Abstract: An ACK signal processing method that can be used in a wireless LAN system is proposed. Various information that can be used for a downlink MU PPDU for multiple receiving stations may be proposed, and, for example, in order to omit the re-transmission of the related art, information requesting an ACK or Block ACK corresponding to previously transmitted data may be included. If an immediate acknowledgement (ACK) frame fails to be received after the MU-PPDU is transmitted from the AP, a Block ACK may be requested. In this case, while a Block ACK is requested, a radio resource through which a Block ACK is delivered may be allocated.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: September 24, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Suhwook Kim, Kiseon Ryu, Jeongki Kim, Hangyu Cho
  • Method for transmitting uplink frame in wireless LAN system and wireless device using the same
    Patent number: 10420120
    Abstract: A method for transmitting an uplink frame in a wireless local area network (WLAN) system.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: September 17, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kiseon Ryu, Suhwook Kim, Jeongki Kim, Hyunhee Park
  • DATA TRANSMISSION METHOD AND DEVICE IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20190281584
    Abstract: A data transmission method of a station (STA) device in a wireless LAN system is disclosed. The data transmission method of an STA device, according to the present invention, comprises: a receiving step of receiving an uplink data frame from a first STA, wherein the uplink data frame includes first receiving operating mode information indicating a receiving operating mode to be changed by the first STA; and a transmitting step of transmitting an ACK frame for the uplink data frame, wherein the ACK frame includes mode change acceptance information indicating whether to accept or reject the change in the receiving operating mode according to the receiving operating mode information.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 12, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyeyoung CHOI, Kiseon RYU, Jeongki KIM, Hangyu CHO, Suhwook KIM
  • METHOD FOR TRANSMITTING OR RECEIVING WAKE-UP RADIO FRAME IN WIRELESS LAN SYSTEM AND APPARATUS THEREFOR
    Publication number: 20190281551
    Abstract: A method for transmitting a wake-up radio (WUR) frame by an access point (AP) in a wireless LAN (WLAN) system according to one embodiment of the present invention comprises the steps of: generating a WUR frame including a WUR preamble and a MAC header; and transmitting the WUR frame, wherein the MAC header includes at least one of frame length information, a transmitter ID and a receiver ID, and when the frame length information is included in the MAC header, the frame length information indicates a length of MAC content located after the WUR preamble in the WUR frame, but the length of the MAC header may be excluded from the indicated length of the MAC content.
    Type: Application
    Filed: December 6, 2017
    Publication date: September 12, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Jeongki KIM, Kiseon RYU, Hyunhee PARK, Suhwook KIM, Hangyu CHO, Jinyoung CHUN, Jinsoo CHOI, Taewon SONG