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：US20180176929A1

公开(公告)日：2018-06-21

申请号：US15671678

申请日：2017-08-08

Applicant: LG Electronics Inc.

Inventor： Kiseon RYU ,  Suhwook KIM ,  Jeongki KIM ,  Hyunhee PARK

IPC: H04W72/10 ,  H04L5/00 ,  H04W72/04

Abstract: Disclosed herein is a method for transmitting an uplink frame performed by a first wireless device in a wireless LAN system including the steps of receiving a basic trigger frame individually allocating a plurality of uplink wireless resources for a plurality of user devices from a second wireless device, wherein the basic trigger frame may include preference information indicating an AC type for an aggregation traffic and limit information indicating a maximum number of traffic identifiers allowed for the aggregation traffic, configuring the aggregation traffic in accordance with the preference information and the limit information, and configuring an uplink frame based on the aggregation traffic and a QoS null frame including ACK policy information being configured so that acknowledgement is not required by the second wireless device, wherein the QoS null frame may be included in the uplink frame regardless of the preference information and the limit information.

公开(公告)号：US20180132175A1

公开(公告)日：2018-05-10

申请号：US15570297

申请日：2016-02-17

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W52/02 ,  H04W76/28 ,  H04W72/04

CPC classification number: H04W52/0206 ,  H04W52/02 ,  H04W52/0219 ,  H04W72/0446 ,  H04W72/12 ,  H04W76/28 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/22

Abstract: A UL MU transmission method of an STA operating in a power save mode, and a device for performing the method are disclosed. The UL MU transmission method of an STA operating in a power save mode can comprise the steps of: transmitting, by a STA, a TWT request element to an AP; receiving, by the STA, a TWT response element from the AP as a response to the TWT request element, wherein the TWT response element includes information on a target wake time; switching, by the STA, from a dose state to an awake state on the basis of the target wake time so as to receive a beacon frame from the AP; receiving, by the STA, a trigger frame from the AP on the basis of TWT information of the beacon frame; and transmitting, by the STA, an uplink frame to the AP on the basis of the trigger frame by using an UL MU transmission.

公开(公告)号：US20170290050A1

公开(公告)日：2017-10-05

申请号：US15259756

申请日：2016-09-08

Applicant: Seoul National University of Technology Center for Industry Collaboration ,  LG ELECTRONICS INC.

Inventor： Jihoon YUN ,  Sanghyun KIM ,  Suhwook KIM

IPC: H04W74/00 ,  H04W74/02 ,  H04W48/10

CPC classification number: H04W74/002 ,  H04W48/10 ,  H04W48/12 ,  H04W74/02 ,  H04W84/12

Abstract: Provided are a method and a device for transmitting and receiving a traffic stream in a wireless local area network (WLAN) system. Specifically, the device broadcasts a beacon frame including allocation information on a contention-free period (CFP) and allocation information on a contention period (CP) to a station (STA) and transmits a downlink traffic stream to the STA or receives an uplink traffic stream from the STA, based on the allocation information on the CFP. The allocation information on the CFP indicates that the downlink traffic stream is transmitted without performing a clear channel assessment (CCA) during the CFP and indicates that the uplink traffic stream is received with performing a CCA during the CFP.

公开(公告)号：US20170272138A1

公开(公告)日：2017-09-21

申请号：US15505561

申请日：2015-08-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04B7/06 ,  H04L1/06 ,  H04W74/00 ,  H04B7/0452 ,  H04L29/08

CPC classification number: H04B7/0613 ,  H04B7/0452 ,  H04B7/063 ,  H04B7/0669 ,  H04B7/0695 ,  H04L1/0031 ,  H04L1/0083 ,  H04L1/0643 ,  H04L1/1614 ,  H04L1/1685 ,  H04L29/08 ,  H04L69/323 ,  H04W72/042 ,  H04W74/006

Abstract: In the present invention, disclosed is a method for uplink multi-user transmission in a wireless communication system and an apparatus therefor. Specifically, a method for performing, by a station (STA), uplink (UL) multi-user (MU) transmission in a wireless communication system comprises the steps of: receiving, from an access point (AP), a trigger frame including information for UL MU transmission; and transmitting an UL MU PPDU on the basis of the information for UL MU transmission, wherein the trigger frame is a medium access control (MAC) frame, a MAC header of the trigger frame includes a type field and a subtype field, and the type of the trigger frame may be indicated by the type field and the subtype field.

公开(公告)号：US20170208546A1

公开(公告)日：2017-07-20

申请号：US15324667

申请日：2015-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Giwon PARK ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W52/02 ,  H04W72/04 ,  H04L12/18 ,  H04L5/00

CPC classification number: H04W52/0216 ,  H04L1/1671 ,  H04L1/1867 ,  H04L5/0055 ,  H04L12/1886 ,  H04L27/2613 ,  H04W52/0229 ,  H04W52/0238 ,  H04W52/0245 ,  H04W72/042 ,  H04W74/06 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: Disclosed are a method and an apparatus for power save mode operation on the basis of a frame transmitted from another BSS in a wireless LAN. A method for operating an STA in a wireless LAN in a power save mode comprises: a step in which the STA receives a beacon frame from an AP, the beacon frame comprising a TIM element indicating downlink data pending in the STA; a step in which the STA transmits a PS-poll frame to the AP in response to the beacon frame; a step in which the STA receives, from the AP, an ACK frame transmitted by the AP in response to the PS-poll frame; and a step in which the STA determines the operation of the another BSS in a TXOP power save mode on the basis of the ACK frame.

公开(公告)号：US20170164409A1

公开(公告)日：2017-06-08

申请号：US15325427

申请日：2015-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Giwon PARK ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W74/08 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04W72/0446 ,  H04W74/0825 ,  H04W84/12

Abstract: The present document relates to a backoff procedure and apparatus for efficiently accessing a broadband channel in a wireless LAN system. To this end, a station performs a clear channel assessment (CCA) operation in each of a plurality of channels, and when one or more of the plurality of channels is/are not used and the one or more channels is/are not used for frame transmission in the basic service set (BSS) of its/their station, the station is characterized in that it performs or re-performs a backoff procedure in the one or more channels. When a backoff counter value becomes zero according to the backoff procedure, the station may transmit a frame through the one or more channels.

公开(公告)号：US20170149547A1

公开(公告)日：2017-05-25

申请号：US15319477

申请日：2015-01-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04B7/26 ,  H04B7/2678 ,  H04L1/1635 ,  H04L1/1685 ,  H04L1/18 ,  H04L1/1864 ,  H04L27/26 ,  H04W72/0493 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed are a method and an apparatus for receiving a frame. A method for receiving a frame in a wireless LAN comprises the steps of: an AP transmitting, to a plurality of STAs, a downlink PPDU including downlink data for each of the plurality of STAs, through a plurality of channels; and the AP receiving, from each of the plurality of STAs, a plurality of block ACK frames transmitted based on a block ACK transmission control field, wherein the downlink PPDU includes the block ACK transmission control field, and wherein each of the plurality of block ACK frames may include ACK information related to downlink data.

公开(公告)号：US20170086212A1

公开(公告)日：2017-03-23

申请号：US15310734

申请日：2015-06-08

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Giwon PARK ,  Suhwook KIM ,  Hangyu CHO

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/12 ,  H04L1/1664 ,  H04L1/1887 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0058 ,  H04L5/0092 ,  H04L27/2601 ,  H04W72/04 ,  H04W72/1268 ,  H04W84/12 ,  H04W88/08

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.

公开(公告)号：US20170033898A1

公开(公告)日：2017-02-02

申请号：US15302922

申请日：2015-02-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00

CPC classification number: H04L5/005 ,  H04B7/0417 ,  H04B7/0452 ,  H04W84/12

Abstract: A method and apparatus for transmitting a frame on the basis of a sounding procedure is disclosed. The method for transmitting the frame on the basis of a sounding procedure in a wireless LAN may comprise the steps of: transmitting an NDPA frame to each of multiple STAs by an AP wherein the NDPA frame notifies of the transmission of NDP; transmitting the NDP to each of the multiple STAs by the AP; receiving, by the AP, multiple feedback frames transmitted through multiple transmission sources allocated to the multiple STAs in time sources overlapped by the multiple STAs, respectively; and transmitting, by the AP, multiple downlink frames to the multiple STAs respectively.

Abstract translation: 公开了一种基于探测过程发送帧的方法和装置。 基于无线LAN中的探测过程发送帧的方法可以包括以下步骤：由AP发送NDPA帧到每个多个STA，其中NDPA帧通知NDP的传输; 由AP向多个STA中的每一个发送NDP; 由AP接收分别由多个STA重叠的时间源中分配给多个STA的多个发送源发送的多个反馈帧; 以及由所述AP将多个下行链路帧分别发送到所述多个STA。