公开(公告)号：US20200236624A1

公开(公告)日：2020-07-23

申请号：US16634508

申请日：2018-07-25

Applicant: LG Electronics Inc.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Suhwook KIM ,  Taewon SONG ,  Jinsoo CHOI

IPC: H04W52/02 ,  H04L27/02 ,  H04W80/02

Abstract: A method by which a station (STA) receives a frame in a wireless LAN (WLAN), according to one embodiment of the present disclosure, comprising: receiving a first primary connectivity radio (PCR) frame including a counter value related to a version of a PCR system parameter through a PCR; storing the counter value, which is acquired through the first PCR frame, and entering a wake-up radio (WUR) mode; receiving a first WUR frame through the WUR; and determining whether to perform wake up based on reception of the first WUR frame, wherein the first WUR frame includes a counter field, and the STA can determine whether to perform wake up based on whether a value of the counter field of the first WUR frame corresponds to the stored counter value.

公开(公告)号：US20200099556A1

公开(公告)日：2020-03-26

申请号：US16609169

申请日：2018-04-18

Applicant: LG Electronics Inc.

Inventor： Dongguk LIM ,  Eunsung PARK ,  Jinsoo CHOI

IPC: H04L27/20 ,  H04W84/12 ,  H04L27/26 ,  H04W52/02 ,  H04L5/00 ,  H04W88/08

Abstract: A method for transmitting a physical layer protocol data unit (PPDU) by a station (STA) in a wireless LAN (WLAN) system according to an embodiment of the present invention may comprise the steps of: configuring an L-part including a legacy-short training field (L-STF), a legacy-long training field (L-LTF), and a legacy-signal field (L-SIG); when a PPDU to be transmitted by the STA corresponds to a predetermined format, performing binary phase shift keying (BPSK) modulation on N consecutive symbols located after the L-SIG, for packet classification; and transmitting the PPDU including the L-part and the N BPSK-modulated symbols.

公开(公告)号：US20200067677A1

公开(公告)日：2020-02-27

申请号：US16666044

申请日：2019-10-28

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Wookbong LEE ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04L29/08

Abstract: A method for transmitting a physical protocol data unit (PPDU) of a station (STA) device in a wireless local area network (WLAN) system, includes generating a PPDU configured based on a high efficiency-short training field (HE-STF) sequence including a HE-STF field and transmitting the PPDU, wherein the HE-STF field is transmitted on a channel, wherein the HE-STF sequence is mapped to the channel per 2-tone unit, wherein, when the channel is a 20 MHz channel, the HE-STF sequence is configured to have a structure of {a M Sequence, 0, 0, 0, 0, 0, 0, 0, the M sequence}, and, when the channel is a 40 MHz channel, the HE-STF sequence is configured to have a structure of {the M sequence, 0, 0, 0, 1, 0, 0, 0, the M sequence, 0, 0, 0, 0, 0, 0, 0, the M sequence, 0, 0, 0, 1, 0, 0, 0, the M sequence}.

公开(公告)号：US20200044699A1

公开(公告)日：2020-02-06

申请号：US16596457

申请日：2019-10-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO

IPC: H04B7/0452 ,  H04L25/02 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Provided are a method and a device for transmitting a feedback frame in a wireless LAN system. Particularly, a first wireless station receives, from a second wireless station, a feedback request field including an LTF. The first wireless station configures feedback information on a wireless channel corresponding to a preset frequency band by using the feedback request field. The first wireless station transmits the feedback information to the second wireless station.

公开(公告)号：US20200014505A1

公开(公告)日：2020-01-09

申请号：US16549980

申请日：2019-08-23

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Jinyoung CHUN ,  Hangyu CHO ,  Jinsoo CHOI ,  Kiseon RYU

IPC: H04L5/00 ,  H04J11/00 ,  H04W74/00

Abstract: A wireless communication system and, more particularly, to a method for performing efficient signaling for a reserved sub-band in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, an STA provides resource allocation information for transmitting data to a plurality of STAs using an orthogonal frequency divisional multiple access (OFDMA) or multiple user MIMO (MU-MIMO) method; transmits the resource allocation information to the plurality of STAs; and transmits data to the plurality of STAs according to the resource allocation information. The entire frequency band may include a sub-band which is not used for the data transmission, and it is preferable that the resource allocation information includes a resource allocation bitmap having a form common to the plurality of STAs and indication information which informs a sub-band, from among the entire frequency band, which is not used for the data transmission.

公开(公告)号：US20190364560A1

公开(公告)日：2019-11-28

申请号：US16436450

申请日：2019-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Jeongki KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

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

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：US20190341975A1

公开(公告)日：2019-11-07

申请号：US16476518

申请日：2019-04-02

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Sungjin PARK ,  Jinsoo CHOI

IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/06

Abstract: Proposed are a method and apparatus for transmitting a feedback frame in a wireless local area network (WLAN) system. Specifically, a first STA generates the feedback frame based on multi user (MU)-multi input multi output (MIMO) beamforming. The first STA transmits the feedback frame to a second STA. The feedback frame includes information related to a feedback subcarrier for a predetermined frequency band and a beamforming report field for the MU-MIMO beamforming. The feedback subcarrier includes a first subcarrier transmitted first in the feedback subcarrier and a second subcarrier of which a subcarrier index is determined based on a grouping value related to a subcarrier spacing. The beamforming report field includes a first signal to noise ratio (SNR) for the first subcarrier and a first differential SNR for the second subcarrier. The first differential SNR is an SNR difference between adjacent subcarriers included in the feedback subcarrier.

公开(公告)号：US20190289549A1

公开(公告)日：2019-09-19

申请号：US16343742

申请日：2017-09-15

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Eunsung PARK ,  Hangyu CHO ,  Jinsoo CHOI

IPC: H04W52/02

Abstract: A method for receiving a WUR signal by an STA, according to one embodiment of the present invention, comprises the steps of: detecting a WUR preamble sequence included in a WUR PPDU through a WUR receiver of the STA, while a WLAN receiver of the STA is turned off; obtaining WUR data included in the WUR PPDU, on the basis of a timing synchronized through the WUR preamble sequence; and outputting a wake-up signal to the WLAN receiver through the WUR receiver of the STA if the WUR data is intended for the STA, wherein the WUR preamble sequence used for the synchronization corresponds to a signature sequence carrying specific information, and the specific information may include at least one of an SU/MU indicator indicating whether the WUR PPDU is for a single user (SU) or a multi-user (MU), and information on the bandwidth of the WLAN PPDU to be received after wake-up by the WLAN receiver.

公开(公告)号：US20190246356A1

公开(公告)日：2019-08-08

申请号：US16341863

申请日：2017-10-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W76/11 ,  H04W80/02 ,  H04L27/02

CPC classification number: H04W52/0235 ,  H04L27/02 ,  H04W52/02 ,  H04W76/11 ,  H04W80/02 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14

Abstract: A method for a station (STA) receiving a wake-up radio (WUR) packet in a wireless LAN (WLAN) system according to an embodiment of the present invention comprises the steps of: entering a WUR mode; receiving a WUR packet in the WUR mode using a WUR receiver of the STA; and determining whether to terminate the WUR mode depending on whether a receiver's address included in the WUR packet corresponds to a WUR ID of the STA, wherein the WUR ID of the STA may be one that is allocated by an access point (AP) via a primary connectivity radio before the STA enters the WUR mode.

公开(公告)号：US20190238303A1

公开(公告)日：2019-08-01

申请号：US16328703

申请日：2018-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Jinmin KIM ,  Sunwoong YUN ,  Jinsoo CHOI

IPC: H04L5/14 ,  H04L1/18

Abstract: The present specification discloses a method for transmitting and receiving acknowledgement (ACK) information in a wireless local area network (WLAN) system and a device for the same. More specifically, the present specification describes a method in which a station device scheduled according to a time division duplex (TDD) scheduling scheme transmits and receives ACK information based on TDD scheduling information and a device for the same.