公开(公告)号：US10349343B2

公开(公告)日：2019-07-09

申请号：US15759083

申请日：2016-09-21

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Hangyu Cho

IPC: H04W48/16 ,  H04W48/14 ,  H04W84/12 ,  H04L25/02 ,  H04W74/08

Abstract: A method by which a station (STA) performs active scanning in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: setting, by the STA, a timer for maintaining a basic service set (BSS) configuration parameter set which has been acquired from an access point (AP) in the past; and when the AP is to be accessed before the time expires, transmitting to the AP, a probe request frame including an AP configuration sequence number (AP-CSN) indicating a version of the BSS configuration parameter set, wherein the STA sets the value of the timer for maintaining the BSS configuration parameter set on the basis of the length of the AP-CSN.

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.

公开(公告)号：US10327204B2

公开(公告)日：2019-06-18

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 ,  H04W74/06 ,  H04W84/12

Abstract: A method and a corresponding apparatus, for a power saving mode operation in a wireless LAN, the method including: 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：US10284287B2

公开(公告)日：2019-05-07

申请号：US15567009

申请日：2016-04-29

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W74/08 ,  H04B7/26 ,  H04B7/0452 ,  H04L1/18 ,  H04W56/00 ,  H04L5/00

Abstract: A method by which a station (STA) receives a Multi-STA BlockAck (M-BA) frame in a wireless LAN system supporting an OFDMA, according to one embodiment of the present invention, comprises the steps of: transmitting an uplink multi-user (ULMU) frame on the basis of a trigger frame; receiving an M-BA frame based on an OFDMA physical layer protocol data unit (PPDU) including an SIG B field; and acquiring a data stream including an ACK/NACK for the STA from the OFDMA PPDU-based M-BA frame, wherein the STA acquires the data stream according to an indication of a user field identified by a predetermined ID among a plurality of user fields included in the SIG B field, and the data stream indicated by the user field identified by the predetermined ID can be equally allocated to other STAs performing the UL MU transmission on the basis of the trigger frame.

公开(公告)号：US10271377B2

公开(公告)日：2019-04-23

申请号：US15925663

申请日：2018-03-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04W84/12 ,  H04L12/801 ,  H04W28/02 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04W88/10

Abstract: A method and an apparatus for triggering uplink data in a wireless LAN are disclosed. A method for receiving uplink data in a wireless LAN may comprise: a step in which an access point (AP) transmits a trigger frame for random connection; and a step in which the AP receives at least one buffer status report frame from at least one STA on a random connection transmission opportunity (TXOP) which is set on the basis of the trigger frame for random connection, wherein the random connection TXOP is allocated for a channel access attempt for transmitting the buffer status report frame of each of a plurality of non-specific STAs, and each of the at least one STA may be an STA which succeeds in the channel access among the plurality of non-specific STAs.

公开(公告)号：US10231243B2

公开(公告)日：2019-03-12

申请号：US15524555

申请日：2015-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee ,  Jeongki Kim

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

Abstract: Disclosed are a method and a device for allocating a resource unit on the basis of a container in a wireless LAN. The method for allocating a resource unit in a wireless LAN comprises the steps of: generating, by an AP, a PPDU to be transmitted to a plurality of STAs; and transmitting, by the AP, the PPDU to the plurality of STAs through at least one container allocated on the entire frequency band, wherein the PPDU includes MU/SU transmission indication information and resource allocation information for each container, the MU/SU transmission indication information includes information on whether an SU-based transmission or an MU-based transmission is carried out on the entire bandwidth, and the resource allocation information for each container can include information on the number of STAs allocated to each of the at least one container.

公开(公告)号：US10225843B2

公开(公告)日：2019-03-05

申请号：US15410710

申请日：2017-01-19

Applicant: LG ELECTRONICS INC.

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

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

Abstract: The present specification suggests a signal processing method for changing an operating mode to configure a PPDU in a wireless local area network (WLAN) system. Specifically, a first station receives indication information indicating a change in operating mode that indicates a number of spatial streams and a receiving channel bandwidth that are supported by a second station from the second station. The first station transmits a block acknowledgement (BA) in response to the indication information, the BA including a first delay required bit. The first station defers applying the indication information so that the indication information is not applied when the first delay required bit is a predetermined value.

公开(公告)号：US10212731B2

公开(公告)日：2019-02-19

申请号：US15509149

申请日：2014-12-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/00 ,  H04W74/08

Abstract: Provided is a method and apparatus for protecting a TXOP in a wireless communication system. The method for protecting a TXOP may comprise the steps of: receiving a trigger frame containing information on a first interval for an exchange of multiple clear-to-send (CTS) frames from a transmission station (STA) by a reception STA; and transmitting CTS frames to the transmission STA in the first interval by the reception STA.

公开(公告)号：US10172170B2

公开(公告)日：2019-01-01

申请号：US14378742

申请日：2013-03-26

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Yongho Seok ,  Seunghee Han ,  Jinsoo Choi ,  Jinsam Kwak ,  Hangyu Cho

IPC: H04W76/11 ,  H04W76/14 ,  H04W74/00 ,  H04W76/23 ,  H04W84/12 ,  H04W88/08

Abstract: The present invention discloses a method for changing an association ID in a wireless communication system and an apparatus therefor. Specifically, a method for changing an association identification (AID) of a first station (STA) communicating directly with a second STA in a wireless communication system comprises the steps of: receiving, from an access point (AP), a reassignment response frame containing new AID information to be newly allocated to the first STA; the first STA transmitting an update request frame containing the new AID information to the second STA; and as a response to the update request frame, receiving an update response frame from the second STA.

公开(公告)号：US10091729B2

公开(公告)日：2018-10-02

申请号：US15424211

申请日：2017-02-03

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Jeongki Kim

IPC: H04W52/02 ,  H04W72/12 ,  H04W72/00 ,  H04W72/04 ,  H04B7/0452 ,  H04W4/70 ,  H04W74/06 ,  H04W74/04 ,  H04L29/12 ,  H04W84/12

Abstract: An embodiment of the present invention provides a method for performing channel access at an STA of a multiuser (MU) group in a wireless communication system, including receiving a resource assignment frame; and checking a group indicator field included in the resource assignment frame, wherein, if the group indicator field indicates that a slot assignment field for the MU group is present in the resource assignment frame, the STA determines a slot start offset based on the slot assignment field.