公开(公告)号：US11160024B2

公开(公告)日：2021-10-26

申请号：US16618788

申请日：2018-05-31

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Jeongki Kim ,  Jinsoo Choi ,  Dongguk Lim ,  Eunsung Park

IPC: H04W52/02 ,  H04L5/00 ,  H04L27/06 ,  H04W84/12

Abstract: A method for receiving a frame in a wireless LAN system according to the present embodiment comprises the steps of: receiving transmission speed information according to a transmission type of a wakeup packet for a WUR module from a second wireless terminal by a first wireless terminal including a main radio module and the WUR module, wherein the transmission speed information is set on the basis of at least three transmission speeds for the wakeup packet, and the transmission speed information is received on the basis of the main radio module; and receiving the wakeup packet on the basis of the transmission speed information from the second wireless terminal by the first wireless terminal, wherein a header of the wakeup packet includes a transmission type indicator for the transmission type of the wakeup packet, the wakeup packet is modulated according to an on-off keying (OOK) scheme, and the wakeup packet is received on the basis of the WUR module.

公开(公告)号：US11032811B2

公开(公告)日：2021-06-08

申请号：US16725885

申请日：2019-12-23

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12

Abstract: An AP downlink multi-user transmission method in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: generating a DL MU PPDU, wherein the DL MU PPDU comprises resource allocation information for uplink MU transmission by a station (STA); transmitting the DL MU PPDU to the STA; and, on the basis of the DL MU PPDU, receiving a UL MU PPDU generated by the STA, wherein the UL MU PPDU comprises a first part having a first IDFT/DFT cycle, and a second part having a second IDFT/DFT cycle that is four times the first IDFT/DFT cycle, wherein the first part may be received through at least one 20 MHz channel in a position corresponding to a frequency resource indicated by the resource allocation information, and the second part may be received by using the frequency resource indicated by the resource allocation information.

公开(公告)号：US11006448B2

公开(公告)日：2021-05-11

申请号：US16586835

申请日：2019-09-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/02 ,  H04W74/08 ,  H04L27/26 ,  H04W74/00 ,  H04W72/08 ,  H04W88/08

Abstract: A method for performing, by a station (STA) apparatus, uplink (UL) multi-user (MU) transmission in a wireless communication system according to an embodiment of the present invention includes performing carrier sensing on a channel, receiving a trigger frame including information for UL MU transmission and a carrier sense indicator indicating whether a result of the carrier sensing is to be reflected from an access point (AP), and transmitting an UL MU frame through the channel based on the information for UL MU transmission. The UL MU frame is transmitted through the channel based on a result of the carrier sensing if the carrier sense indicator indicates the reflection of a result of the carrier sensing. The UL MU frame is transmitted through the channel regardless of a result of the carries sensing if the carrier sense indicator does not indicate the reflection of a result of the carrier sensing.

公开(公告)号：US11006365B2

公开(公告)日：2021-05-11

申请号：US16464661

申请日：2017-11-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W76/11 ,  H04W80/02 ,  H04W84/12

Abstract: A method for transmitting, by an access point (AP), a wake-up radio (WUR) packet in a wireless local area network (WLAN) system, according to an embodiment of the present invention, comprises the steps of: setting a MAC header comprising at least two of type information of the WUR packet, receiver address information, and transmitter address information; and transmitting the WUR packet comprising the MAC header, wherein in setting the MAC header, when the WUR packet is a broadcast WUR packet, the AP omits the receiver address information from the MAC header and sets the transmitter address information, and wherein whether or not an STA belonging to the AP should perform a primary connectivity radio (PCR)-on procedure after receiving the broadcast WUR packet may be instructed through the type information of the WUR packet.

公开(公告)号：US10750401B2

公开(公告)日：2020-08-18

申请号：US16338983

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W28/02 ,  H04W84/12 ,  H04W52/36 ,  H04W28/06 ,  H04W72/12

Abstract: A method by which a station (STA) transmits a frame including a buffer state report (BSR) in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: configuring the BSR of the STA to a first control sub-field among one or more control sub-fields aggregated in an aggregated-control (A-control) field; and transmitting the A-control field through a high throughput (HT) control filed included in a MAC header of the frame, wherein the first control sub-field for the BSR is configured as a short BSR when a second control sub-field in the A-control field includes uplink power headroom information of the STA.

公开(公告)号：US10743348B2

公开(公告)日：2020-08-11

申请号：US16094168

申请日：2017-04-17

Applicant: LG ELECTRONICS INC.

Inventor： Saehee Bang ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Jinmin Kim

IPC: H04W4/00 ,  H04W74/08 ,  H04B7/0404 ,  H04W84/12 ,  H04W72/04 ,  H04W80/02 ,  H04W80/08

Abstract: A method for multi-user transmission in a wireless LAN system according to one embodiment of the present specification comprises the steps of: individually performing, by a STA including a first directional antenna and a second directional antenna, a first countdown procedure for the first directional antenna and a second countdown procedure for the second directional antenna according to a directional CCA operation for the first and second directional antennas; determining the first directional antenna as a primary antenna when the first countdown procedure is completed before the second countdown procedure; determining whether the second directional antenna is idle from a threshold time before a completion time point of the first countdown procedure to the completion time point; and transmitting multiple streams on the basis of the first and second directional antennas according to the result of the determination.

公开(公告)号：US10728846B2

公开(公告)日：2020-07-28

申请号：US15560092

申请日：2016-07-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W74/00 ,  H04W74/08 ,  H04W84/12 ,  H04L5/00 ,  H04L27/26

Abstract: A method for performing uplink Orthogonal Frequency Division Multiple Access (UL OFDMA) based random access to an Access Point (AP) by a Station (STA) in a Wireless Local Area Network (WLAN) system is proposed. For the purpose, the STA sets a random value within an OFDMA Contention Window (CWO) as an OFDMA Back-Off (OBO) value, receives a beacon frame from the AP, the beacon frame including transmission start time information of one or more Trigger Frames for Random Access (TF-Rs), decrements the OBO value based on reception of the one or more TF-Rs, and if the OBO value reaches 0, transmits a random access request frame in resources selected randomly from among resources allocated to the STA.

公开(公告)号：US10716061B2

公开(公告)日：2020-07-14

申请号：US16441817

申请日：2019-06-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W74/06 ,  H04W84/12 ,  H04W4/06 ,  H04W88/08

Abstract: Disclosed are a method and a device for triggering a plurality of PS-poll frames in a wireless LAN. The method for triggering a plurality of PS-poll frames in a wireless LAN can comprise the steps of: transmitting, by an AP, a beacon frame; transmitting, by the AP, a first PS-poll trigger frame within a beacon interval; receiving, by the AP, a plurality of first PS-poll frames transmitted on the basis of a UL MU transmission by a first STA group as a response to the first PS-poll trigger frame; transmitting, by the AP, a plurality of first downlink data frames to a plurality of STAs on the basis of a DL MU transmission as a response to the plurality of first PS-poll frames; transmitting, by the AP, a second PS-poll trigger frame within a beacon interval; receiving, by the AP, a plurality of second PS-poll frames transmitted on the basis of the UL MU transmission by a second STA group as a response to the second PS-poll trigger frame; and transmitting, by the AP, a plurality of second downlink data frames to the plurality of STAs on the basis of the DL MU transmission as a response to the plurality of second PS-poll frames.

公开(公告)号：US10701705B2

公开(公告)日：2020-06-30

申请号：US16039774

申请日：2018-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon Ryu ,  Jinyoung Chun ,  Jinsoo Choi

IPC: H04W72/08 ,  H04W72/04 ,  H04W74/08 ,  H04W84/12 ,  H04W48/12 ,  H04W48/16 ,  H04B7/26 ,  H04L5/14 ,  H04L5/00

Abstract: A method for transmitting a frame in a WLAN system performed by a first wireless device may include: performing a receiving operation for a first STR PPDU within a first time resource based on a wireless channel, wherein the first STR PPDU is received from a second wireless device, and wherein a PHY header includes a BSS color information, an identification information, and an indication information, and, when the first wireless device is indicated by the identification information, in case a NAV timer value according to a logical carrier sense is equal to ‘0’, and in case a result of a physical carrier sense performed for the wireless channel, during a predetermined duration before the receiving operation is started, is in an idle state, performing a transmitting operation for a second STR PPDU within a second time resource overlapping with the first time resource based on the wireless channel.

公开(公告)号：US10687314B2

公开(公告)日：2020-06-16

申请号：US16425634

申请日：2019-05-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W52/00 ,  H04L27/26 ,  H04W28/02 ,  H04L5/00 ,  H04W84/12 ,  H04W74/04 ,  H04B7/06

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.