公开(公告)号：US20180049240A1

公开(公告)日：2018-02-15

申请号：US15549997

申请日：2015-08-07

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04W74/006 ,  H04W74/0833 ,  H04W84/12

Abstract: A method and an apparatus for increasing transmission coverage of an STA performing an initial access in a wireless LAN are disclosed. An initial access method in a wireless LAN can comprise the steps of: transmitting a trigger frame on a channel by an AP; receiving, by the AP, a first probe request frame transmitted on a first sub-channel by a first STA as a response to the trigger frame; and transmitting, by the AP, on the channel, an MU PPDU including a first probe response frame, which is a response to the first probe request frame, and a second probe response frame, which is a response to the second probe request frame, wherein the channel can include the first sub-channel and the second sub-channel.

公开(公告)号：US20170353887A1

公开(公告)日：2017-12-07

申请号：US15534154

申请日：2015-08-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W28/04 ,  H04W28/06 ,  H04L29/06

CPC classification number: H04W28/04 ,  H04L1/0041 ,  H04L1/0072 ,  H04L69/04 ,  H04L69/22 ,  H04W28/06

Abstract: A method and device for transmitting a frame including error check bits for a header in a wireless LAN are disclosed. The method for transmitting a frame in a wireless LAN can comprise the steps of: generating, by an STA, a frame to be transmitted to an AP; and transmitting, by the STA, the frame to the AP, wherein the frame is an A-MPDU, the A-MPDU includes an A-MPDU header subframe and an A-MPDU subframe, the A-MPDU header subframe includes a first MPDU, the A-MPDU subframe includes a second MPDU, the first MPDU, as an MPDU, includes a first MAC header, expect for a MAC body, and the second MPDU, as an MPDU, can include the MAC body and a second MAC header.

公开(公告)号：US20170289994A1

公开(公告)日：2017-10-05

申请号：US15473528

申请日：2017-03-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04W74/002 ,  H04W74/02 ,  H04W84/12

Abstract: According to an embodiment of the present specification, a method for transmitting an uplink frame in a wireless local area network (WLAN) system and performed by a user station (STA) includes: receiving from an access point (AP) a trigger frame comprising association identifier information for orthogonal frequency division multiple access (OFDMA)-based random access and allocation information indicating a resource unit, wherein the association identifier information indicates any one of a first value irrelevant to whether being associated with the AP, a second value for a first STA group associated with the AP, and a third value for a second STA group un-associated with the AP; and performing a countdown operation according to the association identifier information based on a backoff value which is set in a backoff counter of the user STA in order to transmit the uplink frame.

公开(公告)号：US20170273019A1

公开(公告)日：2017-09-21

申请号：US15310078

申请日：2015-05-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02

CPC classification number: H04W52/0209 ,  H04W52/0216 ,  H04W74/06 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: Disclosed are a method and an apparatus for power saving mode operation in a wireless LAN. A method, for operating a power saving mode in a wireless LAN, can comprises the steps of: an AP transmitting, on the basis of a virtual bitmap of a TIM element comprised in a beacon frame, a PS-poll request frame to a plurality of target STAs that have received the indication of the existence of pended downlink data; the AP receiving, on overlapped time resources, each of a plurality of PS-poll frames from each of a plurality of PS-poll transmission STAs that are indicated on the basis of the PS-poll request frame among the plurality of target STAs; and the AP, on the overlapped time resources, transmitting each of a plurality of downlink frames to each of the plurality of PS-poll transmission STAs as a response to each of the plurality of PS-poll frames.

公开(公告)号：US20170245306A1

公开(公告)日：2017-08-24

申请号：US15502770

申请日：2015-08-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04L69/04 ,  H04L69/323 ,  H04L69/324 ,  H04W8/26 ,  H04W72/0413 ,  H04W72/1268 ,  H04W74/006 ,  H04W84/12 ,  H04W88/02 ,  H04W92/10

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.

公开(公告)号：US20170127269A1

公开(公告)日：2017-05-04

申请号：US15337399

申请日：2016-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon RYU ,  Jeongki KIM ,  Suhwook KIM

IPC: H04W8/24

CPC classification number: H04W8/24 ,  H04W28/18 ,  H04W72/00 ,  H04W72/02 ,  H04W74/002 ,  H04W74/006 ,  H04W84/12

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.

公开(公告)号：US20170104570A1

公开(公告)日：2017-04-13

申请号：US15316823

申请日：2015-01-28

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Wookbong LEE ,  Jeongki KIM

IPC: H04L5/00 ,  H04B7/26 ,  H04W74/08 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04B7/26 ,  H04L27/26 ,  H04W72/0446 ,  H04W74/006 ,  H04W74/0816 ,  H04W84/12

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.

公开(公告)号：US20160360528A1

公开(公告)日：2016-12-08

申请号：US15118088

申请日：2014-12-17

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Wookbong LEE ,  Jinsoo CHOI ,  Hangyu CHO ,  Jeongki KIM ,  Giwon PARK

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0446 ,  H04L5/0007 ,  H04L27/2602 ,  H04W72/042 ,  H04W74/0816 ,  H04W84/12

Abstract: A method and a device for transmitting a frame in a wireless LAN are disclosed. A method for transmitting a data unit in a wireless LAN can comprise the steps of: transmitting, by an AP, an RTS frame for medium protection to a plurality of STAs through a plurality of channels; receiving, by the AP, a CTS frame in response to the RTS frame from each of the plurality of STAs through a first allocation channel, wherein the first allocation channel is at least one of the plurality of channels, which is determined on the basis of the RTS frame; and transmitting, by the AP, downlink data to each of the plurality of STAs through a second allocation channel on the basis of OFDMA in overlapped time resources, wherein the second allocation channel is at least one of the plurality of channels.

Abstract translation: 公开了一种在无线LAN中发送帧的方法和装置。 一种用于在无线LAN中发送数据单元的方法可以包括以下步骤：通过多个信道由AP发送用于媒体保护的RTS帧到多个STA; 由AP接收响应于来自多个STA中的每一个的RTS帧通过第一分配信道的CTS帧，其中第一分配信道是多个信道中的至少一个，其基于 RTS帧; 以及通过所述AP在重叠的时间资源中，通过第二分配信道，通过OFDMA将所述下行链路数据发送到所述多个STA中的每一个，其中，所述第二分配信道是所述多个信道中的至少一个。

公开(公告)号：US20160345266A1

公开(公告)日：2016-11-24

申请号：US15112665

申请日：2014-11-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23

Abstract: A power save mode-based operating method and device in a WLAN are disclosed. The power save mode-based operating method in the WLAN may include: transmitting, by an STA, a first trigger frame to an AP; receiving, by the STA, a downlink frame transmitted by the AP based on the first trigger frame on a first service section; receiving, by the STA, traffic indication information from the AP on a second service section after the reception of the downlink frame; determining, by the STA, the presence or absence of a pending downlink frame at the AP based on the traffic indication information on the second service section; and determining, by the STA, a power saving mode based on the presence or absence of the pending downlink frame.

Abstract translation: 公开了一种基于省电模式的操作方法和WLAN中的设备。 WLAN中的基于省电模式的操作方法可以包括：由STA向AP发送第一触发帧到AP; 由所述STA接收由所述AP基于所述第一触发帧在第一服务部分发送的下行链路帧; 在接收到下行链路帧之后，通过STA从第二服务部分接收来自AP的业务指示信息; 基于所述第二服务部分上的所述业务指示信息，由所述STA确定在所述AP处的所述未决下行链路帧的存在或不存在; 以及由所述STA基于所述未决下行链路帧的存在或不存在来确定功率节省模式。

公开(公告)号：US20160330764A1

公开(公告)日：2016-11-10

申请号：US15109565

申请日：2014-11-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/02 ,  H04W74/00

CPC classification number: H04W74/02 ,  H04L5/0033 ,  H04W74/004 ,  H04W74/0816 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for transmitting an uplink frame in a wireless LAN. The method for transmitting an uplink frame in a wireless LAN may comprise: a step in which an STA receives a downlink PPDU from an AP through a downlink dedicated channel; a step in which the STA performs a first channel switching from the downlink dedicated channel to a general channel on the basis of information about TXOP duration for transmitting the downlink PPDU if STA indication information included in the received downlink PPDU does not indicate the STA and a pending uplink frame is present in the STA; a step in which the STA performs a channel access for transmitting the uplink frame via the general channel on a time resource corresponding to the TXOP duration; and a step in which the STA performs a second channel switching from the general channel to the downlink dedicated channel on the basis of the information about TXOP duration.

Abstract translation: 公开了一种用于在无线LAN中发送上行链路帧的方法和装置。 用于在无线LAN中发送上行链路帧的方法可以包括：STA通过下行链路专用信道从AP接收下行链路PPDU的步骤; 如果包括在接收的下行链路PPDU中的STA指示信息不指示STA，则STA根据关于用于发送下行链路PPDU的TXOP持续时间的信息执行从下行链路专用信道切换到第一信道的步骤，以及 待处理的上行帧存在于STA中; 在与TXOP持续时间相对应的时间资源上，STA执行用于经由通用信道发送上行链路帧的信道接入的步骤; 以及STA根据关于TXOP持续时间的信息执行从通用信道切换到下行专用信道的第二信道的步骤。