公开(公告)号：US10779264B2

公开(公告)日：2020-09-15

申请号：US15571797

申请日：2016-03-14

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinsoo Choi ,  Hangyu Cho ,  Eunsung Park ,  Wookbong Lee

IPC: H04W72/04 ,  H04L1/00 ,  H04L27/26 ,  H04W84/12

Abstract: According to one embodiment of the present invention, an AP generates a frame including a signaling field and a data field so as to transmit the frame to one or more STAs, wherein: the signaling field includes a first signaling field having first common control information on the one or more STAs, and a second signaling field having individual control information for each of the one or more STAs; and the second signaling field includes a common field having second common control information on the one or more STAs, and individual fields having individual control information for each of the one or more STAs. In addition, if the frame is transmitted with a bandwidth of 40 MHz or more, the second signaling field transmits independent control information in two adjacent 20 MHz bands.

公开(公告)号：US10749659B2

公开(公告)日：2020-08-18

申请号：US16248432

申请日：2019-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Eunsung Park

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/0452 ,  H04L29/08 ,  H04W84/12

Abstract: A method and apparatus for transmitting frames having a long training field (LTF) for a second type of station (STA) in a wireless communication system are provided. For this, STA prepares a frame having a first part for a first type of STA and a second part for the second type of STA; wherein the second part includes multiple LTFs, when the frame is used for MU (Multiple User) transmission scheme or OFDMA (Orthogonal Frequency Divisional Multiple Access) scheme. In case a first LTF having a first number of symbols length and a second LTF having a second number of symbols length, which is greater than the first number of symbols length, are used for the multiple LTFs, the first LTF is extended such that the first LTF and the second LTF have a same number of symbols length. The STA transmits the prepared frame to one or more STAs.

公开(公告)号：US10735235B2

公开(公告)日：2020-08-04

申请号：US15743998

申请日：2015-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04L27/26 ,  H04W74/04 ,  H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04W48/14 ,  H04W84/12

Abstract: A method for receiving a signal by a station in a wireless LAN system, according to an embodiment of the present invention, comprises the steps of: receiving one of a plurality of per channel SIG-Bs, comprised in a SIG-B field, via a first channel among the transmission bandwidth of a multi-user (MU) frame comprising SIG-B field and data; and receiving the data of the MU frame on a second channel differing from the first channel via which the per channel SIG-Bs have been received. Although any one of the plurality of per channel SIG-Bs is transmitted on the second channel, the data of the MU frame is received by means of the per channel SIG-Bs that are transmitted on the first channel instead of the per channel SIG-Bs that are transmitted on the second channel.

公开(公告)号：US10667242B2

公开(公告)日：2020-05-26

申请号：US15525006

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Eunsung Park

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12

Abstract: Provided is an example related to a control field which is used for PPDU in a wireless LAN system supporting a plurality of RUs. An additional identifier can be comprised in the control field for PPDU. An identifier value comprised in the control field is preferably determined on the basis of whether or not only one RU corresponding to the full bandwidth of a transmission frequency band is arranged. Comprising of information for allocation of RU of the PPDU can be determined on the basis of the identifier value comprised in the control field.

公开(公告)号：US10548146B2

公开(公告)日：2020-01-28

申请号：US15566596

申请日：2016-04-15

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Dongguk Lim ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Eunsung Park

IPC: H04W72/08 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12

Abstract: An uplink (UL) sounding support method of a station (STA) for measuring a an UL channel state in a wireless local area network (WLAN) system, according to one embodiment of the present invention, comprises the steps of: receiving null data packet announcement (NDPA) information indicating an UL transmission of an the NDP frame; receiving trigger information indicating an UL MU transmission resource of the NDP frame; and UL multi-user (MU)-transmitting the NDP frame using the UL MU transmission resource indicated by the trigger information, wherein the trigger information may comprise at least one of spatial resource information or the frequency resource information to be used for the UL MU transmission of the NDP frame.

公开(公告)号：US10469141B2

公开(公告)日：2019-11-05

申请号：US16384751

申请日：2019-04-15

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinyoung Chun ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho

IPC: H04B7/0452 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12 ,  H04L5/00 ,  H04L25/02

Abstract: Provided are a method and a device for transmitting a feedback frame in a wireless LAN system. Particularly, a first wireless station receives, from a second wireless station, a feedback request field including an LTF. The first wireless station configures feedback information on a wireless channel corresponding to a preset frequency band by using the feedback request field. The first wireless station transmits the feedback information to the second wireless station.

公开(公告)号：US10454650B2

公开(公告)日：2019-10-22

申请号：US15563060

申请日：2016-02-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin Kim ,  Jeongki Kim ,  Dongguk Lim ,  Hangyu Cho

IPC: H04L5/00 ,  H04L27/26 ,  H04W52/24 ,  H04W16/28 ,  H04W72/04 ,  H04W74/08 ,  H04L27/00 ,  H04W84/12 ,  H04B7/0452

Abstract: Disclosed herein is a method for transmitting data performed by a station (STA) in a Wireless LAN (WLAN) system. The method for transmitting data performed by an STA device according to the present invention includes receiving a signal from a first STA of a first Basic Service Set (BSS); obtaining Endurable Interference Margin (EIM) information and transmission power information of the first STA from the reception signal; obtaining a Predicted Interference Power (PIP) using the transmission power information of the first STA; and comparing the EIM information with the PIP, and controlling a Clear Channel Assessment (CCA) level or a transmission power according to the comparison result.

公开(公告)号：US10433306B2

公开(公告)日：2019-10-01

申请号：US15467952

申请日：2017-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Dongguk Lim ,  Eunsung Park

IPC: H04W72/04 ,  H04W84/12

Abstract: It is proposed an example for mapping between a signal field and a data field used in a wireless local area network (LAN) system supporting a plurality of resource units (RUs). If a second channel (e.g., a 20 MHz band) is nullified and thus a physical layer protocol data unit (PPDU) is not transmitted, a signal field transmitted through a first channel may include allocation information regarding all data channels, and a signal field transmitted through the first channel is preferably duplicated on a third channel. In this case, a signal field transmitted through a fourth channel may include only allocation information for a data field corresponding to the fourth channel.

公开(公告)号：US10320545B2

公开(公告)日：2019-06-11

申请号：US15526307

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Eunsung Park

IPC: H04L5/00 ,  H04L1/00 ,  H04W84/12 ,  H04W72/04 ,  H04L27/26 ,  H04W72/12

Abstract: Provided is a control field comprising allocation information about resource units (RUs) in a wireless LAN system in which a plurality of RUs are supported. A control field comprising allocation information about RUs can be comprised in an uplink or downlink PPDU and can be designed in accordance with a plurality of frequency bands. A control field corresponding to a particular frequency band can be duplicated over another frequency band. Also, the control field corresponding to the particular frequency band can be used for scheduling of a data field corresponding to the same frequency band and a data field corresponding to another frequency band.

公开(公告)号：US10299261B2

公开(公告)日：2019-05-21

申请号：US15502973

申请日：2015-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04L1/16 ,  H04L27/08 ,  H04L27/00

Abstract: The present invention discloses a method and device for downlink multi-user (DL MU) transmission in a wireless communication system. In particular, the method for downlink multi-user data transmission in the wireless communication system includes the steps of receiving, by a station (STA), a DL MU data frame from an access point (AP) and transmitting, by the STA, an acknowledgement (ACK) frame in response to the DL MU data frame, wherein a plurality of ACK frames transmitted by a plurality of STAs in response to the DL MU data frame is multiplexed to configure an uplink multi-user (UP MU) ACK frame, and the time and/or size of a frequency resource at which the ACK frame is transmitted may be determined according to the level of a modulation and coding scheme (MCS) that is applied to the ACK frame.