公开(公告)号：US11621875B2

公开(公告)日：2023-04-04

申请号：US17273708

申请日：2019-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04L27/26 ,  H04L1/00 ,  H04W84/12

Abstract: A method and an apparatus for transmitting an EHT PPDU in a WLAN system are proposed. Specifically, a transmitter generates an EHT PPDU and transmits, on the basis of an RF, the EHT PPDU to a receiver through a 320 MHz band in which an 80 MHz band is punctured. A legacy preamble includes an L-STF and an L-LTF. The legacy preamble is generated by applying a first phase rotation value. The first phase rotation value is determined on the basis of a first scheme and a second scheme. The first scheme is a scheme of obtaining an optimal PAPR in the L-STF and the L-LTF. The second scheme is a scheme of obtaining an optimal PAPR on the basis of the maximum transmission bandwidth supported by the RF. The first phase rotation value is obtained on the basis of a second phase rotation value and a third phase rotation value. The second phase rotation value is a phase rotation value that repeats a phase rotation value defined for the 80 MHz band in an 802.11ax system. The third phase rotation value is a phase rotation value defined in units of the 80 MHz band in the 320 MHz band.

公开(公告)号：US11582695B2

公开(公告)日：2023-02-14

申请号：US17159865

申请日：2021-01-27

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 ,  H04B7/0413

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：US11582692B2

公开(公告)日：2023-02-14

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 ,  H04L5/00 ,  H04L27/02 ,  H04W80/02 ,  H04W84/12

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：US11510095B2

公开(公告)日：2022-11-22

申请号：US16979508

申请日：2018-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Jeongki Kim ,  Kiseon Ryu ,  Jinsoo Choi

IPC: H04W28/04 ,  H04L1/00 ,  H04L1/18 ,  H04W84/12

Abstract: A method for transmitting or receiving a frame by a STA in a WLAN according to one embodiment of the present invention may comprise the steps of: receiving a first frame including a PHY header and an A-PHDU obtained by aggregating PHDUs which are PHY data transmission units for a HARQ process; decoding at least one PHDU for the STA in the A-PHDU on the basis of the PHY header; and transmitting a second frame including ACK/NACK information on each of the at least one PHDU for the STA, according to a decoding result, wherein a CRC is individually provided to each of the PHDUs included in the A-PHDU, and the STA transmits a NACK through the second frame in relation to a particular PHDU for which a CRC failure has occurred during the decoding of the particular PHDU.

公开(公告)号：US11497058B2

公开(公告)日：2022-11-08

申请号：US17267805

申请日：2019-07-23

Applicant: LG ELECTRONICS INC.

Inventor： Insun Jang ,  Suhwook Kim ,  Jeongki Kim ,  Kiseon Ryu ,  Sungjin Park ,  Taewon Song ,  Jinsoo Choi

IPC: H04L5/00 ,  H04W84/12 ,  H04W74/08

Abstract: A method and an apparatus for transmitting a PPDU in a WLAN system are proposed. Particularly, a transmission device receives configuration information relating to a multi-band. The transmission device performs channel sensing with respect to the multi-band. The transmission device transmits PPDUs to a reception device via the multi-band on the basis of the result of the channel sensing. In the multi-hand, a first band and a second band are combined. The first band includes a first primary channel. The second band includes a second primary channel. The channel sensing is performed on the basis of a first CW value which is set in common for the first and second bands. If transmission of some PPDUs allocated to the second band of the PPDUs fails, the first CW value is increased.

公开(公告)号：US11496244B2

公开(公告)日：2022-11-08

申请号：US17264259

申请日：2019-08-26

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinmin Kim ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04L1/00 ,  H04L27/26 ,  H04L27/38 ,  H04W84/12

Abstract: A method and apparatus for transmitting PPDU in a wireless LAN system are proposed. Specifically, a transmitter generates the PPDU, and transmits the PPDU to a receiver through a 320 MHz band in which some bands are punctured. The PPDU includes a legacy preamble and an EHT field. The legacy preamble includes L-STF and L-LTF. The legacy preamble is generated by applying a first phase rotation value or a second phase rotation value. The first phase rotation value is obtained on the basis of a third phase rotation value and a fourth phase rotation value. The third phase rotation value is a phase rotation value having repeated a phase rotation value defined for an 80 MHz band in an 802.11ax system. The fourth phase rotation value is a phase rotation value defined in units of the 80 MHz band in the 320 MHZ band on the basis of an optimal PAPR of the L-LTF.

公开(公告)号：US20220345343A1

公开(公告)日：2022-10-27

申请号：US17764253

申请日：2020-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinsoo Choi ,  Eunsung Park ,  Insun Jang

IPC: H04L27/26 ,  H04W4/40 ,  H04L5/00

Abstract: One embodiment according to the present specification relates to a technique for transmitting information related to a packet extension field in a wireless LAN (WLAN) system. An NGV PPDU can include at least one midamble and a packet extension field set on the basis of the at least one midamble. For example, a duration related to the packet extension field can be set on the basis of the number of the at least one midamble. A preamble of the NGV PPDU can include information related to a packet extension field.

公开(公告)号：US20220330262A1

公开(公告)日：2022-10-13

申请号：US17639851

申请日：2020-05-28

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Jeongki Kim ,  Jinsoo Choi ,  Sanggook Kim

IPC: H04W72/08 ,  H04W28/02

Abstract: In a wireless local area network (LAN) system, a station (STA) may transmit a first physical protocol data unit (PPDU) including information related to low latency traffic. The low latency traffic may be traffic requiring a latency less than or equal to a threshold value. A resource for the low latency traffic may be allocated to the STA. The STA may transmit, via the resource, a second PPDU including the low latency traffic.

公开(公告)号：US11411788B2

公开(公告)日：2022-08-09

申请号：US15733876

申请日：2019-05-31

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong Yun ,  Jinmin Kim ,  Eunsung Park ,  Dongguk Lim ,  Jinsoo Choi

IPC: H04L27/26 ,  H04W84/12

Abstract: This specification is related to a long training field (LTF) symbol of a WLAN. The LTF symbol may be generated based on a first LTF generation sequence used for an odd-numbered stream and a second LTF generation sequence used for an even-numbered stream. An even-numbered element of the first LTF generation sequence may be set to zero (0), and an odd-numbered element of the second LTF generation sequence may be set to zero (0). A plurality of LTF symbols for first and third streams may be generated by applying a P mapping matrix to the first LTF generation sequence. A plurality of LTF symbols for a second stream may be generated by applying the P matrix to the second LTF generation sequence.

公开(公告)号：US20220232621A1

公开(公告)日：2022-07-21

申请号：US17609609

申请日：2020-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Insun Jang ,  Jeongki Kim ,  Jinsoo Choi ,  Dongguk Lim ,  Suhwook Kim ,  Eunsung Park

IPC: H04W74/00

Abstract: An example according to the present specification relates to a technique for filtering a PPDU in a wireless LAN (WLAN) system. An STA may receive an NGV PPDU including a first control field and a second control field. The STA may filter the NGV PPDU on the basis of the second control field and may defer channel access on the basis of the first control field.