公开(公告)号：US20190068396A1

公开(公告)日：2019-02-28

申请号：US16083864

申请日：2017-03-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04L12/28 ,  H04L27/26

Abstract: The present invention relates to a method for transmitting and receiving, by a station, signals in a wireless WLAN system. More particularly, the present specification proposes a frame structure for transmitting signals by bonding a plurality of channels by the station, and a method for transmitting and receiving signals on the basis of the same frame structure, and an apparatus therefor.

公开(公告)号：US20190053134A1

公开(公告)日：2019-02-14

申请号：US15759083

申请日：2016-09-21

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Hangyu CHO

IPC: H04W48/16 ,  H04L25/02 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W48/16 ,  H04L25/0204 ,  H04W48/14 ,  H04W74/0891 ,  H04W84/12

Abstract: A method by which a station (STA) performs active scanning in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: setting, by the STA, a timer for maintaining a basic service set (BSS) configuration parameter set which has been acquired from an access point (AP) in the past; and when the AP is to be accessed before the time expires, transmitting to the AP, a probe request frame including an AP configuration sequence number (AP-CSN) indicating a version of the BSS configuration parameter set, wherein the STA sets the value of the timer for maintaining the BSS configuration parameter set on the basis of the length of the AP-CSN.

公开(公告)号：US20180351725A1

公开(公告)日：2018-12-06

申请号：US16039249

申请日：2018-07-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04L5/0055 ,  H04L1/0031 ,  H04L1/1614 ,  H04L1/1621 ,  H04L1/1685 ,  H04W84/12

Abstract: An ACK signal processing method that can be used in a wireless LAN system is proposed. Various information that can be used for a downlink MU PPDU for multiple receiving stations may be proposed, and, for example, in order to omit the re-transmission of the related art, information requesting an ACK or Block ACK corresponding to previously transmitted data may be included. If an immediate acknowledgement (ACK) frame fails to be received after the MU-PPDU is transmitted from the AP, a Block ACK may be requested. In this case, while a Block ACK is requested, a radio resource through which a Block ACK is delivered may be allocated.

公开(公告)号：US20180317173A1

公开(公告)日：2018-11-01

申请号：US15769702

申请日：2016-11-18

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W52/02

CPC classification number: H04W52/02 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/14

Abstract: A method for a station (STA), which supports a high efficiency physical layer protocol data unit (HE PPDU), for operating in a power-save (PS) mode in a wireless LAN system according to one embodiment of the present invention comprises the steps of: receiving a PPDU; decoding at least a part of the PPDU; and operating in a doze state until the end of the PPDU on the basis of the result of decoding at least a part of the PPDU, wherein if the PPDU is configured as a very high throughput (VHT) PPDU, which is a legacy format compared to the HE PPDU, and the VHT PPDU is determined to be an uplink frame transmitted to an access point (AP) by another STA belonging to the same basic service set (BSS) as the STA, then the STA can operate in a doze state until the end of the PPDU.

公开(公告)号：US20180310330A1

公开(公告)日：2018-10-25

申请号：US15527692

申请日：2015-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Wookbong LEE ,  Hangyu CHO

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04W72/1284 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1289 ,  H04W74/006 ,  H04W74/0833

Abstract: Disclosed is an uplink (UL) multi-user (MU) transmission method by a station (STA) in a wireless LAN (WLAN) system. The uplink multi-user transmission method by an STA in a WLAN system according to the present invention includes the steps of: receiving a trigger frame including resource unit allocation information for orthogonal frequency division multiple access (OFDMA) transmission; transmitting a UL MU physical protocol data unit (PPDU) frame, on the basis of frequency resource allocation information; and receiving an ACK frame for the UL MU PPDU.

公开(公告)号：US20180263047A1

公开(公告)日：2018-09-13

申请号：US15534279

申请日：2015-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Wookbong LEE ,  Hangyu CHO

IPC: H04W72/12 ,  H04L29/06 ,  H04W74/00 ,  H04L5/00 ,  H04W52/02

CPC classification number: H04W72/1205 ,  H04L5/0053 ,  H04L5/0094 ,  H04L67/04 ,  H04L69/22 ,  H04L69/324 ,  H04W52/0216 ,  H04W74/002 ,  H04W74/006 ,  H04W74/02 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/22

Abstract: Disclosed are a method and an apparatus for transmitting a data unit on the basis of a trigger frame. A method of transmitting a data unit in a wireless LAN may comprise the steps in which: an STA receives a trigger frame from an AP; and in response to the trigger frame, the STA transmits, to the AP, an UL MU PPDU on a sub-channel, wherein a PPDU header of the UL MU PPDU comprises a MAC indicator field and at least one MAC header field, the MAC indicator field comprises at least one sub-indicator, each of the at least one sub-indicator indicates whether or not each of the at least one MAC header field is present, and each of the at least one MAC header field may correspond to each of the at least one field included in the MAC header of the UL MU PPDU.

公开(公告)号：US20180254871A1

公开(公告)日：2018-09-06

申请号：US15753917

申请日：2016-08-19

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0053 ,  H04L5/00 ,  H04L27/2602 ,  H04L27/265 ,  H04L27/2666 ,  H04W72/0453 ,  H04W84/12

Abstract: Proposed is an example relating to a control field used in a PPDU of a wireless LAN system which supports a plurality of RUs. The PPDU comprises a plurality of SIG-B fields and a plurality of data fields. Each SIG-B field and each data field correspond to any one of a plurality of 20 MHz. Each of the plurality of data fields can be allocated or indicated by any one of the plurality of SIG-B fields. The mapping relationship between the data fields and the SIG-B fields can be indicated by a mapping rule. The mapping rule can be indicated by the SIG-B fields.

公开(公告)号：US20180254857A1

公开(公告)日：2018-09-06

申请号：US15756921

申请日：2016-09-01

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04L1/16 ,  H04L5/00

CPC classification number: H04L1/1621 ,  H04L1/1614 ,  H04L5/0055 ,  H04L5/0094 ,  H04L2001/0093 ,  H04W84/12

Abstract: Disclosed are a method and a device by which an access point (AP) transmits a block ACK (BA) signal for transmission data of a plurality of stations (STAs) in a wireless LAN (WLAN) system. To this end, an AP receives data from a plurality of STAs, and transmits a first multi-STA BA frame (M-BA frame) for the data received from the plurality of STAs, wherein the first M-BA frame includes a MAC header field, a BA control field, and a BA information field, a last N bit of the BA control field indicates at least one from among the number of pieces of BA information included in the first M-BA frame and information on a succeeding ACK frame, and N is set to 5 or more.

公开(公告)号：US20180242362A1

公开(公告)日：2018-08-23

申请号：US15751142

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08 ,  H04W74/00 ,  H04W24/10 ,  H04W48/16 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W24/10 ,  H04W48/16 ,  H04W74/002 ,  H04W74/085 ,  H04W84/12

Abstract: Provided is a network allocation vector (NAV) operation method by a station (STA) operating in a wireless LAN (WLAN) system. An STA receiving a particular frame, if the frame is a frame for a basic service set (BSS) to which the corresponding STA belongs, determines whether or not a received signal strength indicator (RSSI) is higher than the first clear channel assessment (CCA) level and, if the corresponding frame is not a frame for a BSS to which the STA belongs, determines if the RSSI is higher than the second CCA level which is higher than the first CCA level. If the RSSI is higher than the first CCA level or the second CCA level, the STA updates NAV. If the received frame is a request to send (RTS) frame or a clear to send (CTS) frame, the received frame comprises additional information used for determining whether or not the RTS frame or the CTS frame is a frame for a BSS to which the STA belongs.

公开(公告)号：US20180234269A1

公开(公告)日：2018-08-16

申请号：US15948193

申请日：2018-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04L25/03 ,  H04B7/0413 ,  H04W52/52 ,  H04W84/12

CPC classification number: H04L25/03 ,  H04B7/0413 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2613 ,  H04W52/52 ,  H04W84/12

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. The STF signal that is suggested, for example, can be used for an 80 MHz band and can be generated based on a sequence in which a predetermined M sequence is repeated. Also, the disclosed STF signal can be used for a 1×STF signal from the 1×STF signal and a 2×STF signal. The predetermined M sequence can be a binary sequence of which the length is 15 bits.