公开(公告)号：US20190110315A1

公开(公告)日：2019-04-11

申请号：US16087566

申请日：2017-03-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04L1/18 ,  H04L5/00 ,  H04W72/12 ,  H04W28/06

Abstract: A method for transmitting an uplink frame in a wireless LAN system according to an embodiment of the present specification comprises the steps in which: a user STA configures a backoff counter for contention-based channel access according to first parameter information for multiple users when a first trigger frame for uplink transmission of the multiple users is received from an AP; the user STA performs a countdown operation on the basis of the backoff counter configured according to the first parameter information; the user STA interrupts the countdown operation in order to transmit a trigger-based uplink frame in response to a second trigger frame when the second trigger frame is received; and the user STA resumes the countdown operation, which has been interrupted, when an ACK frame corresponding to the trigger-based uplink frame is not received.

公开(公告)号：US20190007964A1

公开(公告)日：2019-01-03

申请号：US16067553

申请日：2016-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Hangyu CHO ,  Jinmin KIM ,  Kyungtae JO

IPC: H04W72/14 ,  H04W72/04

Abstract: The present specification relates to an operational configuration of a station and an access point in a wireless LAN (WLAN) system. More specifically, the present specification suggests a method for a station or an access point to operate in a case where at least one channel is dynamically allocated during a data transmission interval (DTI) in a wireless LAN system, and an apparatus for the same.

公开(公告)号：US20180375632A1

公开(公告)日：2018-12-27

申请号：US16062574

申请日：2016-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04L5/00 ,  H04L1/16 ,  H04W72/04

CPC classification number: H04L5/0053 ,  H04B7/0452 ,  H04L1/1614 ,  H04L5/0023 ,  H04L5/0091 ,  H04W72/0406 ,  H04W72/0446 ,  H04W84/12

Abstract: Disclosed is a method by which an operating station (STA) transmits a signal in a multiple user (MU) scheme in a wireless LAN (WLAN) system. In the present method, the STA configures a wireless frame, which includes a data field for data transmission and a signaling (SIG) field including control information, wherein the SIG field includes a SIG A field, which includes bandwidth information indicating the whole bandwidth having a bandwidth of 2n times that of 20 MHz, and a SIG B field, which includes user specific information. Here, the bandwidth information of the SIG A field additionally indicates whether the whole bandwidth includes one or more 20 MHz bands (null channel), which are not used in the data transmission.

公开(公告)号：US20180368185A1

公开(公告)日：2018-12-20

申请号：US16115196

申请日：2018-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Kiseon RYU ,  Wookbong LEE ,  Jinyoung CHUN ,  Dongguk LIM ,  Hangyu CHO

IPC: H04W74/08 ,  H04W72/04 ,  H04W52/14 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W52/143 ,  H04W72/0453 ,  H04W84/12

Abstract: A device and method for transmitting a frame in a wireless LAN, with the method including the steps of: transmitting, by an AP, an RTS frame for medium protection to a first STA set; receiving, by the AP, CTS frames, in sequence, from each of a plurality of STAs included in a second STA set in response to the RTS frame, the second STA set being included in the first STA set; and transmitting, by the AP, each of a plurality of PPDUs to each of the plurality of STAs via each of a plurality of subbands for each of the plurality of STAs on an overlapping time resource.

公开(公告)号：US20180359758A1

公开(公告)日：2018-12-13

申请号：US16108016

申请日：2018-08-21

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04L5/0037 ,  H04W72/042 ,  H04W72/08 ,  H04W84/12

Abstract: Disclosed is a method and apparatus for allocating a wireless resource in order to prevent interference in a wireless LAN. A method for allocating a wireless resource in a wireless LAN may comprise the steps of: allocating, by an AP, a plurality of wireless resources for a plurality of STAs included in a BSS, in the entire bandwidth, respectively; and transmitting, by the AP, a PPDU to the plurality of STAs through the plurality of wireless resources, respectively, wherein each of the plurality of wireless resources is a combination of a plurality of wireless units defined in different sizes on a frequency axis, and each of the plurality of wireless resources can be determined in consideration of the size of the bandwidth of at least one STA supporting a bandwidth smaller than the size of the entire bandwidth from among the plurality of STAs.

公开(公告)号：US20180324859A1

公开(公告)日：2018-11-08

申请号：US15766773

申请日：2016-10-26

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08 ,  H04L1/00 ,  H04W12/06 ,  H04W48/16 ,  H04W8/26

CPC classification number: H04W74/0816 ,  H04L1/0003 ,  H04W8/26 ,  H04W12/06 ,  H04W48/16 ,  H04W74/00 ,  H04W74/08 ,  H04W84/12

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：US20180324840A1

公开(公告)日：2018-11-08

申请号：US15772799

申请日：2017-01-16

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W72/12 ,  H04L1/16

CPC classification number: H04W72/1289 ,  H04B7/0452 ,  H04L1/00 ,  H04L1/16 ,  H04L5/0055 ,  H04L5/0092 ,  H04L27/2602 ,  H04L27/2646 ,  H04W84/12

Abstract: Disclosed is a method for transmitting an acknowledgement signal in response to downlink data by a station (STA) in a wireless local area network (WLAN) system. To this end, the STA receives a downlink physical protocol data unit (PPDU) including a control information subfield for uplink scheduling information and downlink data from an access point (AP) and transmits, to the AP, an uplink PPDU including an acknowledgement signal in response to the downlink data according to the uplink scheduling information. In this case, the control information subfield may include length information of the uplink PPDU, resource unit (RU) allocation information for the uplink PPDU, modulation and coding scheme (MCS) information for the uplink PPDU, transmit power of the AP, and target receive signal strength indicator (RSSI) information of the AP.

公开(公告)号：US20180323837A1

公开(公告)日：2018-11-08

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 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04B7/0452 ,  H04L5/0048 ,  H04L25/02 ,  H04L27/26 ,  H04L27/2613 ,  H04W72/0453 ,  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：US20180317235A1

公开(公告)日：2018-11-01

申请号：US15769323

申请日：2016-10-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/08 ,  H04W74/08

Abstract: According to one embodiment of the present specification, a method for transmitting a trigger frame for requesting uplink data to be received through an wireless resource individually configured in an overlapped time duration from a plurality of terminals in a wireless LAN system, comprises: a step for receiving, by an access point, a first buffer state frame from a first terminal, wherein the first buffer state frame includes first QoS information of first uplink data; a step for receiving, by the access point, a second buffer state frame from a second terminal, wherein the second buffer state frame includes second QoS information of second uplink data; a step for determining, by the access point, a first primary AC for a trigger frame on the basis of the first QoS information and the second QoS information, wherein the access point includes a plurality of AP buffers for downlink data to be transmitted to a plurality of terminals; and a step for transmitting, by the access point, the trigger frame through the downlink buffer corresponding to the determined first primary AC among the plurality of AP buffers.

公开(公告)号：US20180302924A1

公开(公告)日：2018-10-18

申请号：US15767344

申请日：2016-10-26

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08

Abstract: The present document relates to a method for performing random access in a wireless LAN system and an apparatus therefor. To this end, a station (STA) may: receive, from an AP, a first trigger frame for assigning at least one of multiple resource units (RUs) for random access; randomly select one of the at least one RU for random access when a first counter, which is set for the STA, becomes 0; and when it is determined that an uplink frame cannot be transmitted through the randomly selected RU, reselect an RU on the basis of a second trigger frame subsequent to the first trigger frame, wherein, in reselecting the RU, the STA may randomly set the first counter again and delay the reselection of the RU on the basis of the first counter which has been randomly set again.