公开(公告)号：US10932272B2

公开(公告)日：2021-02-23

申请号：US16400793

申请日：2019-05-01

Applicant: LG ELECTRONICS INC.

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

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

Abstract: The present document relates to a wireless communication system and, more specifically, to a method for flexibly supporting resource allocation in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, a first STA configures a radio frame comprising: a signaling (SIG) field including control information; and a data field in which data can be transmitted via a discontinuous channel or a channel having a bandwidth size that is supported by a legacy system. When the first STA transmits the configured radio frame to a second STA, the SIG field preferably comprises: information about a full bandwidth in which data can be transmitted via the data field; and null indicator information indicating a channel region of the full bandwidth that is not used in data transmission, or used channel indicator information indicating a channel region of the full bandwidth that is used in data transmission.

公开(公告)号：US10925075B2

公开(公告)日：2021-02-16

申请号：US16448964

申请日：2019-06-21

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee

IPC: H04W72/12 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00 ,  H04W84/12 ,  H04W88/08

Abstract: An access point device and method for: generating and transmitting a physical layer protocol data unit (PPDU) including a plurality of resource units on a bandwidth, where the plurality of resource units includes a first tone unit and a second tone unit. The first tone unit includes a total of 26 tones, where 2 pilot tones for the first tone unit are included in the total of 26 tones. The second tone unit includes a plurality of tones being greater than the total of 26 tones. The 4 pilot tones for the second tone unit are included in the plurality of tones. The locations of a plurality of pilot tones for the plurality of resource units are fixed when two first tone units are included in the plurality of resource units in place of the second tone unit.

公开(公告)号：US10887916B2

公开(公告)日：2021-01-05

申请号：US16681772

申请日：2019-11-12

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W74/08 ,  H04L1/00 ,  H04W8/26 ,  H04W12/06 ,  H04W74/04 ,  H04B7/00 ,  H04W84/12 ,  H04W74/00 ,  H04W48/16

Abstract: A method for updating a network allocation vector (NAV) by a station (STA) in a wireless LAN system according to an embodiment of the present invention comprises the steps of: receiving a frame; and when the duration of the frame is greater than the value of an NAV of the STA, updating the NAV of the STA, wherein the duration is indicated by each of a signal (SIG) field of a physical layer and a header of an MAC layer in the frame, the duration indicated by the physical layer has a larger granularity of a time unit than that of the duration indicated by the MAC layer, and the STA updates the NAV through the duration having the larger granularity, indicated by the physical layer, when the duration indicated by the MAC layer cannot be obtained.

公开(公告)号：US10791519B2

公开(公告)日：2020-09-29

申请号：US16248681

申请日：2019-01-15

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: A method and an apparatus for generating an STF signal usable in a wireless LAN system is provided. 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 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 15 bits.

公开(公告)号：US10785772B2

公开(公告)日：2020-09-22

申请号：US15505521

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L27/26 ,  H04L5/00 ,  H04L1/16 ,  H04L1/00 ,  H04W84/12

Abstract: Disclosed are an uplink transmission method in a wireless communication system and an apparatus therefor. In detail, the method for a uplink (UL) multi-user (MU) transmission by a station (STA) in a wireless communication system includes receiving a trigger frame including frequency resource allocation information in a subband unit for orthogonal frequency division multiple access (OFDMA) transmission from an access point (AP), and transmitting a UL MU PPDU based on the frequency resource allocation information, wherein the UL MU PPDU includes a high efficiency-short training field (HE-STF), a high-efficiency-long training field (HE-LTF), and a data field, and the HE-STF, the HE-LTF, and the data field are transmitted in a subband indicated by the frequency resource allocation information.

公开(公告)号：US10764100B2

公开(公告)日：2020-09-01

申请号：US16358617

申请日：2019-03-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/02 ,  H04L25/38 ,  H04L27/02 ,  H04L5/00 ,  H04B7/0452 ,  H04W84/12

Abstract: The present specification presents a configuration technique of a field for control information in a wireless communication system. Specifically, presented is a configuration technique of a signal field including user-specific information in a wireless LAN system. A plurality of MCS techniques are applied to each field of a signal field, according to the present embodiment, and each field can be ordered according to the MCS techniques. The signal field according to the present embodiment can be used for a single user or multiple users, wherein the length of each field can be determined for blind decoding of the single user and the multiple users. The signal field according to the present embodiment can be an SIG-B field according to a wireless LAN standard.

公开(公告)号：US10764005B2

公开(公告)日：2020-09-01

申请号：US15521552

申请日：2016-02-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L27/26 ,  H04L29/08 ,  H04W84/12

Abstract: The present specification presents a technique for transmitting a PPDU by using a resource unit including carriers of different sizes. For example, a PPDU is transmitted by using five frequency bands, a left guard band, and a right guard band. Null subcarriers can be included in the five frequency bands according to the type of included resource unit. The null subcarriers can be the leftmost side or the rightmost side of each frequency band, and the number of included null subcarriers can be determined according to the size of the carrier included in each resource unit or the type of resource unit. A frequency band including DC carriers can include only one resource unit having a discontinuous carrier, and null subcarriers can be further included around the DC carriers.

公开(公告)号：US10743369B2

公开(公告)日：2020-08-11

申请号：US16091089

申请日：2017-04-04

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Kiseon Ryu ,  Suhwook Kim ,  Jeongki Kim ,  Hangyu Cho

IPC: H04W84/12 ,  H04W8/24 ,  H04W72/04 ,  H04W74/00 ,  H04B7/0452 ,  H04L5/00 ,  H04B7/06 ,  H04L27/26 ,  H04B7/0404

Abstract: The present specification proposes a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. Specifically, a first station receives, from the second station, indication information which indicates a change in an operating mode indicating a receiving channel bandwidth and a number of spatial streams supported by a second station during a TXOP interval. When the number of spatial streams and the receiving channel bandwidth decrease, the first station configures a PPDU for the second station by using the indication information after transmitting an ACK for the indication information. When the number of spatial streams and the receiving channel bandwidth increase, the first station configures a PPDU for the second station by using the indication information during a subsequent TXOP interval of the TXOP interval.

公开(公告)号：US10735151B2

公开(公告)日：2020-08-04

申请号：US16374565

申请日：2019-04-03

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Hyunhee Park

IPC: H04W84/12 ,  H04L5/00 ,  H04W74/00 ,  H04W74/02

Abstract: According to an embodiment of the present specification, a method for transmitting an uplink frame in a wireless local area network (WLAN) system and performed by a user station (STA) includes: receiving from an access point (AP) a trigger frame comprising association identifier information for orthogonal frequency division multiple access (OFDMA)-based random access and allocation information indicating a resource unit, wherein the association identifier information indicates any one of a first value irrelevant to whether being associated with the AP, a second value for a first STA group associated with the AP, and a third value for a second STA group un-associated with the AP; and performing a countdown operation according to the association identifier information based on a backoff value which is set in a backoff counter of the user STA in order to transmit the uplink frame.

公开(公告)号：US10693603B2

公开(公告)日：2020-06-23

申请号：US15699224

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin Park ,  Jinmin Kim ,  Kyungtae Jo ,  Hangyu Cho

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/08 ,  H04W84/12 ,  H04W16/28

Abstract: The present specification proposes a method for a station to transmit and receive a signal in a wireless LAN (WLAN) system and an apparatus therefor. More specifically, when the station transmits and receives a signal via a plurality of channels, the present invention proposes a method of performing beamforming training on the plurality of channels, a method of transmitting and receiving a signal based on the beamforming training and an apparatus therefor.