公开(公告)号：US10524231B2

公开(公告)日：2019-12-31

申请号：US15508076

申请日：2016-05-20

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W72/02 ,  H04W84/12 ,  H04L5/00 ,  H04W72/04 ,  H04W74/08

Abstract: According to an embodiment of the present invention, a method of managing a network allocation vector (NAV) by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) includes: receiving a frame including duration information; selecting a predetermined NAV from a plurality of NAVs of the STA; and managing the predetermined NAV based on the duration information of the frame, wherein the predetermined NAV is selected based on whether the frame has been received from a basic service set (BSS) to which the STA belongs.

公开(公告)号：US10524201B2

公开(公告)日：2019-12-31

申请号：US15567432

申请日：2016-05-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04W76/28 ,  H04W52/02 ,  H04W48/12 ,  H04W84/12 ,  H04W72/12 ,  H04W24/02

Abstract: According to an embodiment of the present invention, a method in which a station (STA) operates in a power saving (PS) mode in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: receiving a trigger frame for allocating a resource for uplink multi-user (UL MU) PPDU transmission; and determining whether the STA shifts into a doze state, on the basis of the trigger frame, wherein the STA determines to shift into the doze state when the resource is not allocated to the STA through the trigger frame, and a time interval in which the STA operates in the doze sate may be determined on the basis of a PS mode field included in the trigger frame.

公开(公告)号：US10523361B2

公开(公告)日：2019-12-31

申请号：US15742437

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04L27/26 ,  H04W84/12 ,  H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04W74/00 ,  H04W92/20

Abstract: An embodiment of the present invention suggests a method in which an access point (AP) obtains channel quality information in a wireless LAN system. The AP transmits, to at least one station (STA), a null data packet announcement (NDP-A) frame including information on transmission of a subsequent null data packet (NDP) frame, and transmits an NDP frame to the at least one station on the basis of information on the NDP-A frame. Further, the AP receives, from the at least one STA, a feedback frame including downlink channel quality information. At this time, the NDP frame includes an L-part for a legacy STA and a high efficiency (HE)-part for a HE STA, wherein the HE-part consists of a HE-signaling A (HE-SIG A) field, a HE-short training field (HE-STF), and a HE-long training field (HE-LTF).

公开(公告)号：US10448333B2

公开(公告)日：2019-10-15

申请号：US15579085

申请日：2016-06-03

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W52/02 ,  H04W72/04 ,  H04W74/06 ,  H04W84/12

Abstract: A method for a station (STA) to operate in a power saving (PS) mode in a wireless LAN system that supports a high efficiency physical layer protocol data unit (HE PPDU), in one embodiment of the present invention, comprises the steps of: receiving a trigger frame which assigns a resource for transmission of an uplink multi-user (UL MU) PPDU; and determining whether to perform transition to a doze state on the basis of the trigger frame, wherein when the resource is not assigned to the STA through the trigger frame, the STA determines to perform transition to a doze state during a time period determined on the basis of an indicator information value of the trigger frame.

公开(公告)号：US10432381B2

公开(公告)日：2019-10-01

申请号：US15517911

申请日：2015-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

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

Abstract: The present specification relates to a method of an access point (AP) transmitting a block acknowledgement (ACK) signal with respect to transmission data of a plurality of stations (STA) in a wireless LAN (WLAN) system, and an apparatus therefor. To this end, an AP transmits a multi-STA BA frame with respect to data received from the plurality of STA, wherein the multi-STA BA frame includes a MAC header field, a BA control field and a BA information field. In this regard, the BA information field may include: AID information with respect to one or more STA to which ACK/NACK is transmitted from the plurality of STA; and an individual information field including BA indicator information that indicates whether the BA information field includes one or more of a block ACK bitmap sub-field and a starting sequence control sub-field.

公开(公告)号：US10425209B2

公开(公告)日：2019-09-24

申请号：US16039249

申请日：2018-07-18

Applicant: LG ELECTRONICS INC.

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

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

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：US10356757B2

公开(公告)日：2019-07-16

申请号：US15562400

申请日：2015-12-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W84/12 ,  H04W76/10 ,  H04W74/08 ,  H04L1/16 ,  H04L5/00 ,  H04W74/00 ,  H04W74/06

Abstract: A method for a station (STA) not having an association identifier (AID) allocated thereto transmitting a signal in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: transmitting a first frame through at least one resource among resources indicated by a trigger frame; and receiving a multi-STA block Ack (M-BA) frame as a reply to the first frame, wherein, if in the M-BA frame a MAC address of the STA that is different from a first information is detected from at least a part of a first field reserved for the first information, an N-bit of a second field preceding the first field is set as a temporary AID of the STA.

公开(公告)号：US10356756B2

公开(公告)日：2019-07-16

申请号：US15525038

申请日：2015-11-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W52/02 ,  H04L1/00 ,  H04W72/12 ,  H04L5/00 ,  H04W84/12 ,  H04W74/04

Abstract: A data transmission method of a station (STA) device in a wireless LAN system is disclosed. The data transmission method of an STA device, according to the present invention, comprises: a receiving step of receiving an uplink data frame from a first STA, wherein the uplink data frame includes first receiving operating mode information indicating a receiving operating mode to be changed by the first STA; and a transmitting step of transmitting an ACK frame for the uplink data frame, wherein the ACK frame includes mode change acceptance information indicating whether to accept or reject the change in the receiving operating mode according to the receiving operating mode information.

公开(公告)号：US10349388B2

公开(公告)日：2019-07-09

申请号：US15242008

申请日：2016-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Jeongki Kim ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04L1/00 ,  H04W84/12 ,  H04W28/10 ,  H04W4/70 ,  H04L1/06 ,  H04B7/06 ,  H04W88/08

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：US10334523B2

公开(公告)日：2019-06-25

申请号：US15699971

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W52/02 ,  H04W84/12

Abstract: A method for managing power of a wireless terminal in a wireless local area network (WLAN) system according to one embodiment includes: transmitting, by a first wireless terminal that switches between an awake state and a doze state based on a power save mode for power management, a target wake time (TWT) request frame for requesting first target beacon transmission time (TBTT) information, which indicates a reception time of a first beacon frame, and listen interval information, which indicates a reception interval for a subsequent beacon frame, to a second wireless terminal; receiving, by the first wireless terminal, a TWT response frame including the first TBTT information and the listen interval information from the second wireless terminal in response to the TWT request frame; switching, by the first wireless terminal, to the doze state after receiving the TWT response frame; switching, by the first wireless terminal, to the awake state according to the first TBTT information in order to receive the first beacon frame; and switching, by the first wireless terminal, to the doze state after receiving the first beacon frame.