公开(公告)号：US10667271B2

公开(公告)日：2020-05-26

申请号：US16292849

申请日：2019-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Wookbong Lee ,  Hangyu Cho ,  Jinyoung Chun ,  Jinsoo Choi ,  Eunsung Park

IPC: H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12

Abstract: The present invention relates to a method for transmitting a frame in a wireless communication system, in particular, a high density wireless LAN system, and a station apparatus for performing the same. To this end, a station for transmitting a frame configures a radio frame for a second type station, including a frame part for a first type station and a frame part for the second type station, wherein the frame part for the second type station includes a first signaling field (SIG A) for the second type station and a second signaling field (SIG B) for the second type station. The SIG A for the second type station includes modulation and coding scheme (MCS) information applied to the SIG B for the second type station, and the MCS level applied to the SIG B for the second type station supports an MCS having level than the lowest MCS level defined for the first type station.

公开(公告)号：US10560896B2

公开(公告)日：2020-02-11

申请号：US15505550

申请日：2015-08-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W84/12 ,  H04W72/04

Abstract: The present specification relates to a method for transmitting signals by a station (STA) which operates in a wireless LAN system. Here, the method for transmitting signals by a station can comprise: a step of receiving a first frame for converting a power saving (PS) mode, from an access point (AP) station, to an awake mode; and a step of transmitting a second frame for informing the awake mode of the station in response to the first frame. Here, the second frame can be a null data packet (NDP) frame.

公开(公告)号：US10536932B2

公开(公告)日：2020-01-14

申请号：US15241010

申请日：2016-08-18

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Jeongki Kim ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04B7/06 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04W4/70 ,  H04W28/10 ,  H04W72/04 ,  H04W72/08 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed herein is an operating method of a station (STA) in a wireless LAN (WLAN) system. The method includes receiving a downlink (DL) physical protocol data unit (PPDU) and sending an uplink (UL) PPDU as a response to the DL PPDU. The DL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a first high efficiency (HE) control field. The UL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a second high efficiency (HE) control field. The each of the first and second HE control fields corresponds to an HT control field and comprises a plurality of aggregated HE control subfield. The HT control field includes VHT subfield value set to “1” and HE subfield value set to “1”.

公开(公告)号：US10440704B2

公开(公告)日：2019-10-08

申请号：US15523234

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee

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

Abstract: A method and a device for allocating resource units in a wireless LAN are disclosed. The method for allocating resource units in a wireless LAN comprises the steps of: generating, by an AP, a PPDU to be transmitted to a plurality of STAs; and transmitting, by the AP, the PPDU to the plurality of STAs on the whole frequency band, wherein the PPDU includes resource allocation information, the resource allocation information includes first resource unit allocation information for allocating first resource units and second resource unit allocation information for allocating second resource units, the first resource unit allocation information is information relating to the allocation of the first resource units for at least one first STA, among the plurality of STAs, which is to receive the PPDU through the first resource units on the whole frequency band, the second resource unit allocation information is information relating to the allocation of the second resource units for at least one second STA, among the plurality of STAs, which is to receive the PPDU through the second resource units on the whole frequency band, and the number of tones allocated to the first resource units can be larger than the number of tones allocated to the second resource units.

公开(公告)号：US10411931B2

公开(公告)日：2019-09-10

申请号：US15518716

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Wookbong Lee

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

Abstract: Disclosed in the present invention are a method for transreceiving a physical protocol data unit (PPDU) in a wireless communication system and a device for same. More specifically, a method for transmitting a physical protocol data unit (PPDU) using a wireless communication device in a wireless communication system comprises the steps of: generating a PPDU including a legacy preamble, an HE-preamble, and a data field; and transmitting the generated PPDU, wherein a minimum integer number of pilot patterns are defined, wherein the minimum integer number is larger than the value obtained by dividing the total number of subcarriers constituting the data field or a fast Fourier transform (FFT) size value used when generating the PPDU by the total number of pilots, wherein specific pilot patterns from among the pilot patterns are allocated to each symbol of the data field, and wherein the index of a subcarrier to which the pilot is mapped may be determined by the pilot patterns.

公开(公告)号：US10397035B2

公开(公告)日：2019-08-27

申请号：US15561726

申请日：2015-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Wookbong Lee ,  Hangyu Cho ,  Jinsoo Choi

IPC: H04W4/00 ,  H04L27/26 ,  H04L5/00 ,  H04W28/06 ,  H04W72/04 ,  H04W84/12

Abstract: Disclosed herein is a station (STA) device of a wireless LAN (WLAN) system. The STA device includes a radio frequency (RF) unit transmitting and receiving a radio signal; and a processor controlling the RF unit. The processor may generate a high efficiency (HE) physical protocol data unit (PPDU) including a physical preamble and a data field and transmit the PPDU using the RF unit.

公开(公告)号：US10356760B2

公开(公告)日：2019-07-16

申请号：US15503687

申请日：2014-12-12

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Wookbong Lee ,  Jeongki Kim ,  Jinsoo Choi ,  Hangyu Cho

IPC: H04W84/12 ,  H04W72/04 ,  H04W88/08 ,  H04W48/16 ,  H04L5/00 ,  H04W74/08 ,  H04L27/26

Abstract: Provided is a method and apparatus for performing active scanning in a wireless communication system. The method for performing active scanning in a wireless communication system may comprise the steps of: receiving, from an access point (AP) by a station (STA), a trigger frame including information on a probing duration which allows transmission of a probe request; and transmitting a probe request frame to the AP during the probing duration by the STA.

公开(公告)号：US10320590B2

公开(公告)日：2019-06-11

申请号：US15516346

申请日：2016-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinsoo Choi ,  Hangyu Cho

IPC: H04L25/03 ,  H04L27/34 ,  H04W84/12 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00

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 that is suggested, for example, is used for a 40 MHz band or an 80 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：US10305552B2

公开(公告)日：2019-05-28

申请号：US15773144

申请日：2016-11-25

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinyoung Chun ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho

IPC: H04B7/0452 ,  H04L27/26 ,  H04L25/02 ,  H04L5/00 ,  H04W72/04 ,  H04W84/12

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：US10201012B2

公开(公告)日：2019-02-05

申请号：US15302470

申请日：2015-04-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W76/38 ,  H04W28/04 ,  H04W84/12 ,  H04B7/0452 ,  H04L5/00 ,  H04W72/04

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for performing retransmission in a wireless LAN system to which transmission opportunity (TXOP) sharing is applied, and a device therefor. To this end, a station transmits an initial transmission frame including primary access category (AC) information and secondary access category (AC) information; and when there is no response to the secondary AC information of the initial transmission frame, reconfigures a back-off timer value for the secondary AC information and retransmits the secondary AC information according to the reconfigured back-off timer value.