公开(公告)号：US20190357256A1

公开(公告)日：2019-11-21

申请号：US16476257

申请日：2018-01-08

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU

IPC: H04W74/08 ,  H04W74/00 ,  H04W48/16 ,  H04W72/04

Abstract: According to one embodiment of the present invention, a method by which a station (STA) performs channel access in a wireless LAN system comprises the steps of: receiving, from an access point (AP), a first frame indicating whether to deactivate a basic service set (BSS) color; receiving a second frame including a signal (SIG)-A field having a transmission opportunity (TXOP) period subfield and a BSS color subfield; and performing channel access, wherein the STA can perform the channel access by invoking an extended inter-frame space (EIFS) operation when the BSS color is deactivated by the first frame, but the BSS color subfield of the second frame includes the deactivated BSS color and the TXOP period subfield of the second frame includes a valid TXOP period value.

公开(公告)号：US20190342885A1

公开(公告)日：2019-11-07

申请号：US16518601

申请日：2019-07-22

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 an operating method of a station (STA) in a wireless LAN (WLAN) system. The method includes receiving a downlink (DL) physical protocol data unit (PPDU) and sending an uplink (UL) PPDU as a response to the DL PPDU. The DL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a first high efficiency (HE) control field. The UL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a second high efficiency (HE) control field. The each of the first and second HE control fields corresponds to an HT control field and comprises a plurality of aggregated HE control subfield. The HT control field includes VHT subfield value set to “1” and HE subfield value set to “1”.

公开(公告)号：US20190273768A1

公开(公告)日：2019-09-05

申请号：US16419393

申请日：2019-05-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04L29/06 ,  H04L5/14 ,  H04L27/26 ,  H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: A Station (STA) in a wireless communication system, the STA including a transceiver configured to transmit and receive a wireless signal; and a processor configured to control the transceiver. Further, the processor is further configured to: receive, from An access point (AP), a downlink (DL) multi-user (MU) Physical Protocol Data Unit (PPDU), wherein the DL MU PPDU includes a DL data and trigger frame for an uplink (UL) orthogonal frequency-division multiple access (OFDMA) transmission; and transmit, to the AP, an UL MU PPDU generated based on the DL MU PPDU, wherein the trigger frame is transmitted in a first frequency region of the DL MU PPDU, and the DL data is transmitted in a second frequency region of the DL MU PPDU, when the trigger frame is for multiple stations (STAs), and wherein the first frequency region and the second frequency region are different frequency region.

公开(公告)号：US20190253972A1

公开(公告)日：2019-08-15

申请号：US16335221

申请日：2017-09-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02

CPC classification number: H04W52/0235 ,  H04W52/02 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14

Abstract: A method, for managing power, performed by means of a first wireless terminal of the present specification comprises the steps of: transmitting to a second wireless terminal a turn-off packet comprising a power indicator, which indicates that a main radio module enters into a deactivated state, and a TWT request parameter set which is for requesting a TWT operation for a WUR module; if a response packet comprising a TWT response parameter set as a response to the TWT request parameter set is received from the second wireless terminal, indicating the WUR module to maintain a turn-off state until entering a TWT service interval in accordance with the TWT response parameter set; indicating the WUR module to enter into a turn-on state from a turn-off state when entering the TWT service interval; determining whether or not update information is received from the second wireless terminal on the basis of the WUR module in the TWT service interval; and, if the update information is received in the TWT service interval, indicating the main radio module to enter into an activated state.

公开(公告)号：US20190223220A1

公开(公告)日：2019-07-18

申请号：US16362521

申请日：2019-03-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0833 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: One embodiment of the present invention relates to a method by which a station (STA) performs uplink transmission in a wireless communication system, the method for performing uplink transmission comprising the steps of: receiving a trigger frame from an AP; and performing uplink transmission as a response to the trigger frame, wherein, when a network allocation vector (NAV) of the STA receiving the trigger frame is idle and clear channel assessment (CCA) result is idle, the uplink transmission is performed.

公开(公告)号：US20190165883A1

公开(公告)日：2019-05-30

申请号：US15742437

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Jinsoo CHOI ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Dongguk LIM

IPC: H04L1/00 ,  H04W74/00 ,  H04W72/12 ,  H04W72/04

Abstract: An embodiment of the present invention suggests a method in which an access point (AP) obtains channel quality information in a wireless LAN system. The AP transmits, to at least one station (STA), a null data packet announcement (NDP-A) frame including information on transmission of a subsequent null data packet (NDP) frame, and transmits an NDP frame to the at least one station on the basis of information on the NDP-A frame. Further, the AP receives, from the at least one STA, a feedback frame including downlink channel quality information. At this time, the NDP frame includes an L-part for a legacy STA and a high efficiency (HE)-part for a HE STA, wherein the HE-part consists of a HE-signaling A (HE-SIG A) field, a HE-short training field (HE-STF), and a HE-long training field (HE-LTF).

公开(公告)号：US20190141747A1

公开(公告)日：2019-05-09

申请号：US16094168

申请日：2017-04-17

Applicant: LG ELECTRONICS INC.

Inventor： Saehee BANG ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Jinmin KIM

IPC: H04W74/08 ,  H04B7/0404 ,  H04W72/04

Abstract: A method for multi-user transmission in a wireless LAN system according to one embodiment of the present specification comprises the steps of: individually performing, by a STA including a first directional antenna and a second directional antenna, a first countdown procedure for the first directional antenna and a second countdown procedure for the second directional antenna according to a directional CCA operation for the first and second directional antennas; determining the first directional antenna as a primary antenna when the first countdown procedure is completed before the second countdown procedure; determining whether the second directional antenna is idle from a threshold time before a completion time point of the first countdown procedure to the completion time point; and transmitting multiple streams on the basis of the first and second directional antennas according to the result of the determination.

公开(公告)号：US20190116596A1

公开(公告)日：2019-04-18

申请号：US16218119

申请日：2018-12-12

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W74/08 ,  H04W52/54 ,  H04W74/00

CPC classification number: H04W72/0453 ,  H04W52/14 ,  H04W52/146 ,  H04W52/54 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/00 ,  H04W74/006 ,  H04W74/08 ,  H04W74/0808 ,  H04W74/0891 ,  H04W84/12

Abstract: Proposed is a method for determining transmission using a network allocation vector (NAV) in a wireless LAN system. Specifically, after a receiving device receives a trigger frame, which triggers an uplink multiple user transmission, from a transmitting device, whether to transmit an uplink physical layer protocol data unit (PPDU) corresponding to the trigger frame is determined using the NAV of the receiving device. In this case, if the NAV is established by an intra-basic service set (BSS) frame, whether to transmit the uplink PPDU is determined without taking the NAV into consideration.

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.