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：US10485028B2

公开(公告)日：2019-11-19

申请号：US15537355

申请日：2016-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Jinsoo Choi ,  Suhwook Kim ,  Hangyu Cho

IPC: H04W74/08 ,  H04W16/02 ,  H04W52/02 ,  H04W84/12 ,  H04L29/08 ,  H04W74/00

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.

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：US20190327052A1

公开(公告)日：2019-10-24

申请号：US16457321

申请日：2019-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06 ,  H04L27/26

Abstract: Provided is a method for a first station (STA) transmitting a frame to a second STA in a wireless LAN system. To this end, the first STA generates a wireless frame comprising a first part (L-part) for a first-type STA and a second part (HE-part) for a second-type STA, wherein the first part comprises a legacy short training field (L-STF), a legacy long training field (L-LTF) and a legacy signaling field (L-SIG), and the length of the L-SIG is set so as to indicate that the wireless frame is a frame of different types according to the remainder when the length of the L-SIG is divided by a predetermined natural number.

公开(公告)号：US10432364B2

公开(公告)日：2019-10-01

申请号：US15505906

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Jinyoung Chun ,  Hangyu Cho ,  Jinsoo Choi ,  Kiseon Ryu

IPC: H04L5/00 ,  H04J11/00 ,  H04W74/00 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for performing efficient signaling for a reserved sub-band in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, an STA provides resource allocation information for transmitting data to a plurality of STAs using an orthogonal frequency divisional multiple access (OFDMA) or multiple user MIMO (MU-MIMO) method; transmits the resource allocation information to the plurality of STAs; and transmits data to the plurality of STAs according to the resource allocation information. The entire frequency band may include a sub-band which is not used for the data transmission, and it is preferable that the resource allocation information includes a resource allocation bitmap having a form common to the plurality of STAs and indication information which informs a sub-band, from among the entire frequency band, which is not used for the data transmission.

公开(公告)号：US10432354B2

公开(公告)日：2019-10-01

申请号：US15532049

申请日：2015-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Wookbong Lee ,  Jeongki Kim ,  Hangyu Cho

IPC: H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04W72/04 ,  H04L21/00 ,  H04W84/12 ,  H04L1/12

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.

公开(公告)号：US10405338B2

公开(公告)日：2019-09-03

申请号：US15527692

申请日：2015-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Hangyu Cho

IPC: H04L12/28 ,  H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08

Abstract: Disclosed is an uplink (UL) multi-user (MU) transmission method by a station (STA) in a wireless LAN (WLAN) system. The uplink multi-user transmission method by an STA in a WLAN system according to the present invention includes the steps of: receiving a trigger frame including resource unit allocation information for orthogonal frequency division multiple access (OFDMA) transmission; transmitting a UL MU physical protocol data unit (PPDU) frame, on the basis of frequency resource allocation information; and receiving an ACK frame for the UL MU PPDU.

公开(公告)号：US10341075B2

公开(公告)日：2019-07-02

申请号：US15536313

申请日：2015-12-23

Applicant: LG Electronics Inc.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Suhwook Kim ,  Hangyu Cho

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: The present document relates to a method for transmitting an acknowledgement/negative acknowledgement (ACK/NACK) signal for transmission data of a plurality of stations (STAs) by an access point (AP) in a wireless LAN (WLAN) system, and an apparatus therefor. To this end, the AP transmits a trigger frame to the plurality of STAs, and on receiving data from the plurality of STAs in response to the trigger frame, transmits ACK/NACK signals for the data received from the plurality of STAs through a multiuser block ACK frame (M-BA frame). Here, the M-BA frame includes ACK/NACK signals for STAs, the number of which is determined so as not to exceed a specific transmission unit time, among the ACK/NACK signals for the plurality of STAs, and the AP additionally transmits ACK/NACK signals to one or more STAs, to which ACK/NACK signals have not been transmitted through the M-BA, among the plurality of STAs.

公开(公告)号：US10334007B2

公开(公告)日：2019-06-25

申请号：US15506632

申请日：2015-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Hangyu Cho

IPC: H04L5/00 ,  H04L5/14 ,  H04L29/06 ,  H04B7/024 ,  H04L1/00 ,  H04L27/26 ,  H04L1/16 ,  H04W28/02

Abstract: According to an aspect of the present invention, a method for performing a downlink (DL) multi-user (MU) transmission by an access point (AP) in a wireless communication system may include transmitting a DL MU Physical Protocol Data Unit (PPDU), where the DL MU PPDU includes a trigger frame including trigger information for an uplink (UL) MU transmission and a DL MU frame; and UL MU receiving a UL MU PPDU generated based on the DL MU PPDU, where the UL MU PPDU includes a UL MU frame based on the trigger frame and an acknowledge (ACK) frame in response to the DL MU frame.

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.