公开(公告)号：US20190281584A1

公开(公告)日：2019-09-12

申请号：US16425634

申请日：2019-05-29

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W72/04 ,  H04L5/00

Abstract: A data transmission method of a station (STA) device in a wireless LAN system is disclosed. The data transmission method of an STA device, according to the present invention, comprises: a receiving step of receiving an uplink data frame from a first STA, wherein the uplink data frame includes first receiving operating mode information indicating a receiving operating mode to be changed by the first STA; and a transmitting step of transmitting an ACK frame for the uplink data frame, wherein the ACK frame includes mode change acceptance information indicating whether to accept or reject the change in the receiving operating mode according to the receiving operating mode information.

公开(公告)号：US20190261350A1

公开(公告)日：2019-08-22

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 ,  H04L5/00 ,  H04L27/26

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：US20190261273A1

公开(公告)日：2019-08-22

申请号：US16333569

申请日：2017-09-28

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Suhwook KIM ,  Hyunhee PARK ,  Hangyu CHO ,  Jinsoo CHOI

IPC: H04W52/02 ,  H04W76/28 ,  H04W76/11 ,  H04W72/04

Abstract: In a wireless local area network system (WLAN), a method and an apparatus for reducing power consumption of a station (STA) comprising a wake-up receiver (WUR) and a WLAN transmitter/receiver are disclosed. To this end, an STA receives a wake-up packet (WUP) including a group-based identifier using the WUR when the WLAN transmitter/receiver is OFF, and switches the WLAN transmitter/receiver to be ON according to WUP information so as to perform WLAN communication using the WLAN transmitter/receiver, wherein one or more of switching the WLAN transmitter/receiver to be ON, and maintaining the ON state are indicated by a traffic indication map (TIM).

公开(公告)号：US20190260624A1

公开(公告)日：2019-08-22

申请号：US16346500

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L27/04 ,  H04W52/02

Abstract: Proposed are a method and a device for transmitting a wakeup packet in a wireless LAN system. Specifically, a transmission device configures a wakeup packet and transmits the wakeup packet to a reception device. The wakeup packet, to which an OOK scheme is applied, includes a sequence comprising first information and second information. The first information comprises an on-signal, and the second information comprises an off-signal. The on-signal is transferred through a first symbol generated by applying a first sequence to K continuous subcarriers in a 20 MHz band and performing 64-point IFFT thereon. In the K subcarriers to which the first sequence is applied, coefficients of subcarriers are set to 1 or −1 by a unit of m subcarriers, and coefficients of the remaining subcarriers are set to 0.

公开(公告)号：US20190260614A1

公开(公告)日：2019-08-22

申请号：US16404062

申请日：2019-05-06

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

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

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：US20190246312A1

公开(公告)日：2019-08-08

申请号：US16338983

申请日：2017-09-29

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W28/02 ,  H04W28/06 ,  H04W52/36

Abstract: A method by which a station (STA) transmits a frame including a buffer state report (BSR) in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: configuring the BSR of the STA to a first control sub-field among one or more control sub-fields aggregated in an aggregated-control (A-control) field; and transmitting the A-control field through a high throughput (HT) control filed included in a MAC header of the frame, wherein the first control sub-field for the BSR is configured as a short BSR when a second control sub-field in the A-control field includes uplink power headroom information of the STA.

公开(公告)号：US20190245594A1

公开(公告)日：2019-08-08

申请号：US16384751

申请日：2019-04-15

Applicant: LG ELECTRONICS INC.

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

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

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：US20190215905A1

公开(公告)日：2019-07-11

申请号：US16358601

申请日：2019-03-19

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon RYU ,  Suhwook KIM ,  Jinyoung CHUN ,  Jeongki KIM ,  Giwon PARK ,  Hangyu CHO

IPC: H04W84/12 ,  H04W72/04 ,  H04W28/02 ,  H04W88/10 ,  H04L12/801 ,  H04W74/08 ,  H04W74/00

CPC classification number: H04W84/12 ,  H04L47/10 ,  H04L47/12 ,  H04W28/021 ,  H04W28/0278 ,  H04W72/0413 ,  H04W74/004 ,  H04W74/085 ,  H04W74/0866 ,  H04W88/10

Abstract: A method and an apparatus for triggering uplink data in a wireless LAN are disclosed. A method for receiving uplink data in a wireless LAN may comprise: a step in which an access point (AP) transmits a trigger frame for random connection; and a step in which the AP receives at least one buffer status report frame from at least one STA on a random connection transmission opportunity (TXOP) which is set on the basis of the trigger frame for random connection, wherein the random connection TXOP is allocated for a channel access attempt for transmitting the buffer status report frame of each of a plurality of non-specific STAs, and each of the at least one STA may be an STA which succeeds in the channel access among the plurality of non-specific STAs.

公开(公告)号：US20190208517A1

公开(公告)日：2019-07-04

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: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W72/048 ,  H04L1/00 ,  H04L1/0001 ,  H04L1/0003 ,  H04L5/0046 ,  H04L27/26 ,  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：US20190150091A1

公开(公告)日：2019-05-16

申请号：US16248681

申请日：2019-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

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

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.