公开(公告)号：US20210195460A1

公开(公告)日：2021-06-24

申请号：US16076087

申请日：2017-02-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W28/02 ,  H04L1/16

Abstract: A method for uplink multi-user (UL MU) operation in a WLAN system according to an embodiment of the present specification comprises the steps of: receiving, by an access point (AP), a buffer state report frame used for the UL MU operation from a user STA associated with the AP, wherein the buffer state report frame includes bitmap information for a plurality of access categories for which the buffer state of the user STA is to be reported, and identification information for a number of traffic identifiers (TIDs) for at least one traffic being buffered by the user STA, wherein the identifier information is set based on a number of the plurality of access categories indicated by the bitmap information; and transmitting, by the AP, a trigger frame for triggering the UL MU operation from a plurality of user STAs.

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：US20210029774A1

公开(公告)日：2021-01-28

申请号：US17040491

申请日：2019-03-25

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Suhwook KIM ,  Kiseon RYU ,  Eunsung PARK ,  Jinsoo CHOI

IPC: H04W76/28 ,  H04W76/11 ,  H04W72/04 ,  H04W8/24 ,  H04W74/08 ,  H04B7/0452

Abstract: Proposed are a method and an apparatus for transmitting data in a wireless LAN system. Particularly, an AP transmits a PPDU to one STA. The AP transmits data to the one STA over a first NCCB band or a second NCCB band on the basis of the PPDU. The PPDU includes a first signal field and a second signal field. The first NCCB band is a 40 MHz or 60 MHz band generated by bonding a discontinuous 20 MHz band in an 80 MHz band. The second NCCB band is an 80 MHz, 100 MHz, 120 MHz, or 140 MHz band generated by bonding a discontinuous 20 MHz band in a 160 MHz band. The first signal field includes first information and second information. The first information is NCCB indication information on whether or not an NCCB can be performed. The second information is NCCB bandwidth information for a band to be used for transmitting the PPDU from the first NCCB band and the second NCCB band.

公开(公告)号：US20200336279A1

公开(公告)日：2020-10-22

申请号：US16959107

申请日：2018-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Saehee BANG ,  Jinmin KIM ,  Kiseon RYU ,  Jinsoo CHOI

IPC: H04L5/14 ,  H04W72/04 ,  H04W74/04

Abstract: A method for supporting TDD in a wireless LAN system of the present specification comprises the steps of: transmitting, by a first wireless terminal, a first frame including a first information element defining a structure of a TDD service period (SP) for TDD channel access, wherein the structure of the TDD SP includes a plurality of consecutive and adjacent TDD intervals, and each of the plurality of TDD intervals includes at least one TDD slot; and transmitting, by the first wireless terminal, a second frame including a second information element defining a schedule for TDD channel access of a second wireless terminal within the TDD SP, to the second wireless terminal, wherein the second information element includes: first information defining an operation type of each of a plurality of TDD slots included in at least one TDD interval for the second wireless terminal within the TDD SP; and second information associated with a duration to which the second information element is applied, and the plurality of TDD slots defined by the first information are repeated during the duration.

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：US20200154476A1

公开(公告)日：2020-05-14

申请号：US16738874

申请日：2020-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Kiseon RYU

IPC: H04W74/08 ,  H04W48/16 ,  H04W74/06

Abstract: In an embodiment of the present invention, a method for indicating, by an access point (AP) associated with a first basic service set (BSS), spatial reuse (SR) in a wireless LAN (WLAN) system includes transmitting a trigger frame which requests uplink multi-user (UL MU) transmission of a plurality of stations (STAs) and receiving an UL MU physical protocol data unit (PPDU) generated based on the trigger frame from the plurality of STAs. The trigger frame may include SR indication information for indicating the SR of an overlapping BSS (OBSS) STA. The first high efficiency (HE)-signal (SIG) A field of the UL MU PPDU may include SR support information generated based on the SR indication information.

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.