公开(公告)号：US20250031185A1

公开(公告)日：2025-01-23

申请号：US18905556

申请日：2024-10-03

Applicant: LG Electronics Inc.

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

IPC: H04W72/044 ,  H04L1/00 ,  H04W72/04 ,  H04W74/00 ,  H04W84/12 ,  H04W88/08

Abstract: A method of transmitting a frame by a station (STA) in a wireless LAN system supporting an HE PPDU (high efficiency physical layer protocol data unit) according to an embodiment of the present invention includes: setting a first duration field included in an HE-SIG A field; and transmitting a frame including the HE-SIG A field and a MAC header, wherein the first duration field is set to indicate a TXOP (transmission opportunity) value using a smaller number of bits than a second duration field included in the MAC header, and a granularity of a time unit used for indicating the TXOP value in the first duration field is set to be different from a granularity of a time unit used in the second duration field.

公开(公告)号：US20230092259A1

公开(公告)日：2023-03-23

申请号：US17988464

申请日：2022-11-16

Applicant: LG Electronics Inc.

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

IPC: H04W72/04 ,  H04W84/12 ,  H04L1/00 ,  H04W74/00

Abstract: A method of transmitting a frame by a station (STA) in a wireless LAN system supporting an HE PPDU (high efficiency physical layer protocol data unit) according to an embodiment of the present invention includes: setting a first duration field included in an HE-SIG A field; and transmitting a frame including the HE-SIG A field and a MAC header, wherein the first duration field is set to indicate a TXOP (transmission opportunity) value using a smaller number of bits than a second duration field included in the MAC header, and a granularity of a time unit used for indicating the TXOP value in the first duration field is set to be different from a granularity of a time unit used in the second duration field.

公开(公告)号：US20210337596A1

公开(公告)日：2021-10-28

申请号：US17372039

申请日：2021-07-09

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08 ,  H04L1/18 ,  H04W72/04 ,  H04W84/12

Abstract: In the wireless LAN system, the station STA receives a frame and updates a corresponding Inter-BSS Network Allocation Vector (NAV) or Intra-BSS NAV according to whether the frame is an Inter-BSS (Basic Service Set) frame or an Intra-BSS frame. If the received frame cannot be distinguished from the Inter-BSS frame or the Intra-BSS frame, it updates the Inter-NAV, and after receiving the frame that cannot be distinguished from the Inter-BSS frame or the Intra-BSS frame, it receives the CF-End frame, and then the corresponding NAV is reset.

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：US20200275371A1

公开(公告)日：2020-08-27

申请号：US16870328

申请日：2020-05-08

Applicant: LG Electronics Inc.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04W52/02 ,  H04L27/26 ,  H04L25/03 ,  H04W84/12 ,  H04W28/06 ,  H04L5/00 ,  H04L27/34

Abstract: Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF signal that is disclosed, for example, is used for a 40 MHz band or an 80 MHz band, is desirably usable for the 40 MHz band, and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

公开(公告)号：US20200178183A1

公开(公告)日：2020-06-04

申请号：US16784197

申请日：2020-02-06

Applicant: LG ELECTRONICS INC.

Inventor： Dongcheol KIM ,  Hangyu CHO ,  Yeonghyeon KWON ,  Jaehoon CHUNG

IPC: H04W52/36 ,  H04L5/00 ,  H04W76/19 ,  H04W72/04

Abstract: An apparatus and method for transmitting a power headroom report in a communication system supporting multi-carriers are disclosed, by which a user equipment is enabled to transmit the power headroom report. According to the present invention, a user equipment calculates a power headroom for each of at least one activated serving cell using a maximum transmission power of the user equipment for each of at least one activated serving cell and transmits the power headroom report including the power headroom for each of the at least one activated serving cell and the maximum transmission power of the user equipment for each of the at least one activated serving cell to a base station. In this case, the power headroom includes an information on power status of the user equipment for each of the at least one activated serving cell.

公开(公告)号：US20200154286A1

公开(公告)日：2020-05-14

申请号：US16739887

申请日：2020-01-10

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Jinmin KIM ,  Hangyu CHO ,  Kyungtae JO

IPC: H04W16/28 ,  H04L27/26 ,  H04W84/12 ,  H04W74/00 ,  H04W72/04

Abstract: The present specification discloses a method by which a station transmits/receives a signal in a wireless LAN (WLAN) system, and a device therefor. More particularly, disclosed are: a method for performing beamforming training for a plurality of channels and transmitting/receiving a signal on the basis of the beamforming training, when the station transmits/receives the signal through the plurality of channels; and a device therefor.

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.