公开(公告)号：US10327203B2

公开(公告)日：2019-06-18

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 ,  H04W72/12 ,  H04W84/12 ,  H04W76/28 ,  H04W72/04 ,  H04W88/08

Abstract: A method for UL MU transmission of an STA operating in a power save mode comprises the steps of: transmitting a TWT request element including first information related to a requested TBTT of a first beacon frame and second information related to a requested wake interval between subsequent beacon frames the STA intends to receive to an AP; receiving a TWT response element from the AP in response to the TWT request element; switching to a doze state from the awake state after receiving the TWT response element; switching to the awake state from the doze state based on the third information in order to receive the first beacon frame from the AP; receiving the first beacon frame including fifth information related to a trigger transmission time of a trigger frame soliciting the UL MU transmission from one or more STAs from the AP.

公开(公告)号：US10321472B2

公开(公告)日：2019-06-11

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: H04L1/16 ,  H04L1/18 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W72/12 ,  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：US10278127B2

公开(公告)日：2019-04-30

申请号：US15502489

申请日：2015-02-05

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W52/02 ,  H04W84/12 ,  H04W40/24 ,  H04W72/04 ,  H04L29/08

Abstract: Disclosed are a power save mode-based operating method and apparatus in a wireless LAN. The power save mode-based operating method in a wireless LAN comprises the steps of: receiving, by an STA, overheard BSS information from an AP; receiving, by the STA, a PPDU, wherein the PPDU includes information on a BSS having transmitted the PPDU; determining, by the STA, whether the overheard BSS information includes the information on the BSS; and switching an awake state to a doze state when the STA determines whether the overheard BSS information includes the information on the BSS, wherein the overheard BSS information can include the information on at least one overheard BSS for transmitting a frame enabled to be overheard by the AP.

公开(公告)号：US10201019B2

公开(公告)日：2019-02-05

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 ,  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：US10172019B2

公开(公告)日：2019-01-01

申请号：US14913955

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W24/02 ,  H04W74/08 ,  H04W52/38 ,  H04W52/36 ,  H04W52/50 ,  H04W84/12

Abstract: A method for transmitting data in a wireless LAN may comprise the steps of: receiving a non-target clear to send (CTS) frame from a second station (STA) by a first STA; transmitting a request to send (RTS) frame to a first access point (AP) coupled with the first STA within a network allocation vector (NAV) interval configured on the basis of the non-target CTS frame by the first STA; receiving a CTS frame in response to the RTS frame from the first AP by the first STA; and transmitting a first data frame to the first AP by the first STA.

公开(公告)号：US10104620B2

公开(公告)日：2018-10-16

申请号：US15315332

申请日：2015-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W52/02 ,  H04L5/00 ,  H04W84/12

Abstract: Disclosed are a method and a device for operation based on a power save mode in a WLAN. The method for operation based on a power save mode in a WLAN may comprise steps in which: an STA receives an ACK frame from an AP in response to a PS-poll frame; after receiving the ACK frame, the STA receives a different BSS PPDU before receiving a downlink frame from the AP; and the STA determines whether or not to switch to a doze state from an awake state on the basis of the reception strength of the different BSS PPDU.

公开(公告)号：US10091726B2

公开(公告)日：2018-10-02

申请号：US15110688

申请日：2015-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W84/12 ,  H04W52/02

Abstract: Disclosed are a method and an apparatus for operating based on a power save mode in a wireless LAN. The method for operating based on the power save mode in a wireless LAN may comprise the steps of: switching an STA from a sleep mode to an active mode after the STA has been switched to a power save mode based on a listen interval, to receive a first beacon frame transmitted by an AP; monitoring a frame for the STA transmitted by the AP until a timer started when the STA is switched to the active mode expires, when the first beacon frame indicates data buffered for the STA; and switching the STA to the sleep mode after the timer expires, wherein the timer can be reset when the frame is transmitted.

公开(公告)号：US10063359B2

公开(公告)日：2018-08-28

申请号：US15246104

申请日：2016-08-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04W84/12 ,  H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: An ACK signal processing method that can be used in a wireless LAN system is proposed. Various information that can be used for a downlink MU PPDU for multiple receiving stations may be proposed, and, for example, in order to omit the re-transmission of the related art, information requesting an ACK or Block ACK corresponding to previously transmitted data may be included. If an immediate acknowledgement (ACK) frame fails to be received after the MU-PPDU is transmitted from the AP, a Block ACK may be requested. In this case, while a Block ACK is requested, a radio resource through which a Block ACK is delivered may be allocated.

公开(公告)号：US10034242B2

公开(公告)日：2018-07-24

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 ,  H04L5/00 ,  H04W72/04 ,  H04L12/18 ,  H04W84/12

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：US09974075B2

公开(公告)日：2018-05-15

申请号：US15025995

申请日：2014-11-06

Applicant: LG Electronics Inc.

Inventor： Dongcheol Kim ,  Suhwook Kim ,  Hangyu Cho ,  Byungjoo Lee

IPC: H04W72/04 ,  H04W56/00 ,  H04L12/733 ,  H04W84/20

CPC classification number: H04W72/0446 ,  H04L45/20 ,  H04W56/0015 ,  H04W84/20

Abstract: One embodiment of the present invention relates to a method for a neighbor awareness networking (NAN) terminal to transceive a signal in a wireless communication system. To be specific, the present invention discloses a method for the NAN terminal to transceiver a signal in the wireless communication system, when the NAN terminal performs an anchor master selection procedure in a condition where there are a plurality of terminals operating as an anchor master in a cluster.