公开(公告)号：US20210099955A1

公开(公告)日：2021-04-01

申请号：US17042086

申请日：2019-04-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04L27/02

Abstract: The present specification proposes a technical feature related to a wake-up radio (WUR) STA. Specifically, proposed is an operation applied when a WUR STA having a service period (SP) enters a WUR mode. For example, an operation for an SP positioned next to a section in which a wake-up packet (WUP) is transmitted and an operation for an SP positioned after a section in which a WUP is not transmitted may be set to be different from each other. Accordingly, proposed is a technique of efficiently controlling a conventionally negotiated SP in the WUR mode.

公开(公告)号：US20210051580A1

公开(公告)日：2021-02-18

申请号：US17050824

申请日：2019-04-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04L27/02 ,  H04L5/00 ,  H04W80/02

Abstract: The present specification proposes a technical feature related to a wake-up radio (WUR) STA. Specifically, proposed is an operation of updating a parameter related to an operation of a WUR mode. For example, the WUR STA may update a parameter related to the WUR mode by receiving an unsolicited frame from an AP while maintaining the WUR mode. The received frame may have a preset action type.

公开(公告)号：US20200280399A1

公开(公告)日：2020-09-03

申请号：US16761116

申请日：2018-11-21

Applicant: LG Electronics Inc.

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

IPC: H04L1/18 ,  H04L1/00

Abstract: A method by which a station (STA) transmits a hybrid automatic repeat request (HARQ) physical layer protocol data unit (PPDU) in a wireless LAN system supporting an HARQ process, according to one embodiment of the present invention, comprises the steps of: generating a HARQ PPDU including allocation information on a HARQ burst, which is unit data to which the HARQ process is applied, and a plurality of HARQ bursts; and transmitting the HARQ PPDU, wherein the HARQ PPDU includes a HARQ signaling (SIG) field of a physical layer for transmitting the allocation information on a HARQ burst, and the allocation information on a HARQ burst can include STA ID for each of the plurality of HARQ bursts, HARQ burst size information, HARQ process channel ID and information indicating, in a toggle manner, whether a transmission is a new transmission or retransmission.

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：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：US20190327749A1

公开(公告)日：2019-10-24

申请号：US16395963

申请日：2019-04-26

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Giwon PARK ,  Suhwook KIM ,  Hangyu CHO

IPC: H04W72/12 ,  H04L5/00 ,  H04L1/16 ,  H04L1/18 ,  H04W72/04

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：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：US20190159245A1

公开(公告)日：2019-05-23

申请号：US16094192

申请日：2017-04-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/00 ,  H04W74/08

Abstract: A method for a frame transmitted on the basis of random access in a wireless LAN system according to the present embodiment comprises the steps of: receiving, by a user STA, a trigger frame from an AP, the trigger frame including identification information for random access and resource information indicating a random access resource unit corresponding to the identification information; performing a countdown operation for the random access resource unit by the user STA; and transmitting, by the user STA, a first uplink frame to the AP on the basis of the random access resource unit obtained through the countdown operation, the first uplink frame including buffer status information associated with traffic buffered in the user STA, wherein the first uplink frame is a frame requesting the AP for transmission of a response.

公开(公告)号：US20190124526A1

公开(公告)日：2019-04-25

申请号：US16091514

申请日：2017-03-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/02

Abstract: Disclosed is a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. Specifically, a first station transmits, to a second station, the number of spatial streams supported by the first station, and a first instructional information instructing a change of the operating mode indicating a channel bandwidth. The first station applies the first instructional information after receiving an ACK therefor. The first instructional information comprises an operating mode indicator for indicating whether the operating mode is a receive operating mode (ROM) or a transmit operating mode (TOM).