公开(公告)号：US20200044699A1

公开(公告)日：2020-02-06

申请号：US16596457

申请日：2019-10-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO

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

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：US20200014505A1

公开(公告)日：2020-01-09

申请号：US16549980

申请日：2019-08-23

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Jinyoung CHUN ,  Hangyu CHO ,  Jinsoo CHOI ,  Kiseon RYU

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

Abstract: 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：US20190364560A1

公开(公告)日：2019-11-28

申请号：US16436450

申请日：2019-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Jeongki KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04W72/04 ,  H04W4/70 ,  H04L1/06 ,  H04L5/00 ,  H04L1/00 ,  H04W84/12 ,  H04W28/10 ,  H04W72/08

Abstract: Disclosed herein is a sounding method of a station (STA) for sending feedback information about a downlink (DL) channel state in a wireless LAN (WLAN) system. The sounding method includes receiving an NDP announcement (NDPA) frame providing notification of the transmission of a null data packet (NDP) frame; receiving the NDP frame; receiving a trigger frame comprising resource allocation information allocated to the STA; generating feedback information using the NDP frame; and sending a feedback frame comprising feedback information through uplink (UL) multi-user (MU) transmission using a frequency resource indicated by the resource allocation information. The feedback information may be generated in a frequency granularity (FG) unit with respect to a transmission bandwidth having a size smaller than or equal to the size of a transmission bandwidth of the NDP frame.

公开(公告)号：US20180368185A1

公开(公告)日：2018-12-20

申请号：US16115196

申请日：2018-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Kiseon RYU ,  Wookbong LEE ,  Jinyoung CHUN ,  Dongguk LIM ,  Hangyu CHO

IPC: H04W74/08 ,  H04W72/04 ,  H04W52/14 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W52/143 ,  H04W72/0453 ,  H04W84/12

Abstract: A device and method for transmitting a frame in a wireless LAN, with the method including the steps of: transmitting, by an AP, an RTS frame for medium protection to a first STA set; receiving, by the AP, CTS frames, in sequence, from each of a plurality of STAs included in a second STA set in response to the RTS frame, the second STA set being included in the first STA set; and transmitting, by the AP, each of a plurality of PPDUs to each of the plurality of STAs via each of a plurality of subbands for each of the plurality of STAs on an overlapping time resource.

公开(公告)号：US20180323837A1

公开(公告)日：2018-11-08

申请号：US15773144

申请日：2016-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO

IPC: H04B7/0452 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04B7/0452 ,  H04L5/0048 ,  H04L25/02 ,  H04L27/26 ,  H04L27/2613 ,  H04W72/0453 ,  H04W84/12

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：US20180317235A1

公开(公告)日：2018-11-01

申请号：US15769323

申请日：2016-10-20

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee PARK ,  Kiseon RYU ,  Jinyoung CHUN ,  Jeongki KIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W72/08 ,  H04W74/08

Abstract: According to one embodiment of the present specification, a method for transmitting a trigger frame for requesting uplink data to be received through an wireless resource individually configured in an overlapped time duration from a plurality of terminals in a wireless LAN system, comprises: a step for receiving, by an access point, a first buffer state frame from a first terminal, wherein the first buffer state frame includes first QoS information of first uplink data; a step for receiving, by the access point, a second buffer state frame from a second terminal, wherein the second buffer state frame includes second QoS information of second uplink data; a step for determining, by the access point, a first primary AC for a trigger frame on the basis of the first QoS information and the second QoS information, wherein the access point includes a plurality of AP buffers for downlink data to be transmitted to a plurality of terminals; and a step for transmitting, by the access point, the trigger frame through the downlink buffer corresponding to the determined first primary AC among the plurality of AP buffers.

公开(公告)号：US20180287755A1

公开(公告)日：2018-10-04

申请号：US15767701

申请日：2016-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

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

CPC classification number: H04L5/0048 ,  H04B7/0684 ,  H04L5/00 ,  H04L27/2613 ,  H04W72/04 ,  H04W72/042

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：US20180213516A1

公开(公告)日：2018-07-26

申请号：US15503687

申请日：2014-12-12

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Jinyoung CHUN ,  Wookbong LEE ,  Jeongki KIM ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04W72/04 ,  H04W48/16 ,  H04W88/08

CPC classification number: H04W72/0406 ,  H04L5/0007 ,  H04L27/2602 ,  H04W48/16 ,  H04W74/0833 ,  H04W84/12 ,  H04W88/08

Abstract: Provided is a method and apparatus for performing active scanning in a wireless communication system. The method for performing active scanning in a wireless communication system may comprise the steps of: receiving, from an access point (AP) by a station (STA), a trigger frame including information on a probing duration which allows transmission of a probe request; and transmitting a probe request frame to the AP during the probing duration by the STA.

公开(公告)号：US20180159714A1

公开(公告)日：2018-06-07

申请号：US15506651

申请日：2015-08-24

Applicant: LG ELECTRONICS INC.

Inventor： Wookbong LEE ,  Jinsoo CHOI ,  Dongguk LIM ,  Jinyoung CHUN ,  Hangyu CHO

IPC: H04L27/26 ,  H04W28/22

CPC classification number: H04L27/2691 ,  H04B7/0452 ,  H04B7/061 ,  H04B7/0669 ,  H04L27/26 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2698 ,  H04L29/08 ,  H04L69/323 ,  H04W28/22 ,  H04W72/1215

Abstract: Disclosed herein is a station (STA) device of a wireless LAN (WLAN) system. The STA device includes a radio frequency (RF) unit sending and receiving a radio signal and a processor controlling the RF unit. The processor may generate a physical protocol data unit (PPDU) including a physical preamble and a data field and send the PPDU using the RF unit.

公开(公告)号：US20180007661A1

公开(公告)日：2018-01-04

申请号：US15537356

申请日：2015-12-15

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Wookbong LEE ,  Hangyu CHO

IPC: H04W72/04 ,  H04L1/18 ,  H04L27/26 ,  H04W84/12

CPC classification number: H04W72/04 ,  H04L1/00 ,  H04L1/1671 ,  H04L1/1685 ,  H04L1/1861 ,  H04L5/0037 ,  H04L5/0094 ,  H04L27/26 ,  H04L27/2601 ,  H04L27/2602 ,  H04W84/12

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