公开(公告)号：US20220070866A1

公开(公告)日：2022-03-03

申请号：US17446267

申请日：2021-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Dongguk LIM

IPC: H04W72/04

Abstract: Proposed herein is a method and device for setting limited RUs and MRUs in a WLAN system. More specifically, a receiving STA receives a PPDU from a transmitting STA through a preset frequency band, and decodes the PPDU. The receiving STA is an STA operating only in a 20MHz band. The PPDU includes a preamble and a data field. The data field is received through resources other than the first RU and the first MRU among the preset frequency band.

公开(公告)号：US20220038317A1

公开(公告)日：2022-02-03

申请号：US17279014

申请日：2019-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Eunsung PARK ,  Insun JANG ,  Jinsoo CHOI

IPC: H04L27/26 ,  H04W52/52

Abstract: A method and device for transmitting an NGV frame in a wireless LAN system is proposed. Specifically, a transmission device generates an NGV frame and transmits the NGV frame through a first band. The NGV frame includes an L-STF, an L-LTF, an L-SIG, an NGV-SIG, an NGV-STF, an NGV-LTF, and NGV-Data. The L-STF, the L-LTF, the L-SIG, and the NGV-SIG are duplicated in units of second bands and transmitted through the first band. The NGV-STF, the NGV-LTF, and the NGV-Data are transmitted through a full band of the first band. The first band is a 20 MHz band, and a second band is a 10 MHz band.

公开(公告)号：US20210336827A1

公开(公告)日：2021-10-28

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

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：US20210320831A1

公开(公告)日：2021-10-14

申请号：US17269948

申请日：2019-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Dongguk LIM ,  Jinsoo CHOI

IPC: H04L27/26 ,  H04L1/00 ,  H04W72/04

Abstract: A method and an apparatus for transmitting an EHT PPDU to a wireless LAN system are presented. Particularly, a transmission device generates an EHT PPDU, and transmits the EHT PPDU to a reception device through a 320 MHz band of which a partial band is punctured on the basis of an RF. 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 method and a second method. The first method is for acquiring an optimum PAPR in the L-LTF. The second method is for acquiring an optimum PAPR on the basis of a maximum transmission bandwidth supported by the RF. The first phase rotation value is acquired on the basis of a second phase rotation value and a third rotation value. The second phase rotation value is a phase rotation value which repeats a phase rotation value that is defined with respect to an 80 MHz band in an 802.11ax system. The third phase rotation value is a phase rotation value that is defined by 80 MHz band units in the 320 MHz band.

公开(公告)号：US20210314922A1

公开(公告)日：2021-10-07

申请号：US17223974

申请日：2021-04-06

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Eunsung PARK

IPC: H04W72/04 ,  H04L5/00

Abstract: According to various embodiments, a receiving STA may receive a Physical layer Protocol Data Unit (PPDU) including a first signal field and a second signal field, wherein the first signal field includes 3 bit information related to a version of the PPDU, wherein the second signal field includes 10 bit information related to a configuration of a plurality of resource units (RUs), wherein first bit information of the 10 bit information includes information for determining the configuration as one of a first configuration and a second configuration. Further, the receiving STA may decode the PPDU based on the first signal field and the second signal field.

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：US20200099556A1

公开(公告)日：2020-03-26

申请号：US16609169

申请日：2018-04-18

Applicant: LG Electronics Inc.

Inventor： Dongguk LIM ,  Eunsung PARK ,  Jinsoo CHOI

IPC: H04L27/20 ,  H04W84/12 ,  H04L27/26 ,  H04W52/02 ,  H04L5/00 ,  H04W88/08

Abstract: A method for transmitting a physical layer protocol data unit (PPDU) by a station (STA) in a wireless LAN (WLAN) system according to an embodiment of the present invention may comprise the steps of: configuring an L-part including a legacy-short training field (L-STF), a legacy-long training field (L-LTF), and a legacy-signal field (L-SIG); when a PPDU to be transmitted by the STA corresponds to a predetermined format, performing binary phase shift keying (BPSK) modulation on N consecutive symbols located after the L-SIG, for packet classification; and transmitting the PPDU including the L-part and the N BPSK-modulated symbols.

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：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：US20190289549A1

公开(公告)日：2019-09-19

申请号：US16343742

申请日：2017-09-15

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Eunsung PARK ,  Hangyu CHO ,  Jinsoo CHOI

IPC: H04W52/02

Abstract: A method for receiving a WUR signal by an STA, according to one embodiment of the present invention, comprises the steps of: detecting a WUR preamble sequence included in a WUR PPDU through a WUR receiver of the STA, while a WLAN receiver of the STA is turned off; obtaining WUR data included in the WUR PPDU, on the basis of a timing synchronized through the WUR preamble sequence; and outputting a wake-up signal to the WLAN receiver through the WUR receiver of the STA if the WUR data is intended for the STA, wherein the WUR preamble sequence used for the synchronization corresponds to a signature sequence carrying specific information, and the specific information may include at least one of an SU/MU indicator indicating whether the WUR PPDU is for a single user (SU) or a multi-user (MU), and information on the bandwidth of the WLAN PPDU to be received after wake-up by the WLAN receiver.