公开(公告)号：US20200163021A1

公开(公告)日：2020-05-21

申请号：US16629282

申请日：2018-07-09

Applicant: LG Electronics Inc.

Inventor： Jeongki KIM ,  Suhwook KIM ,  Kiseon RYU ,  Jinsoo CHOI

IPC: H04W52/02

Abstract: A method by which a station (STA) receives a frame in a wireless (WLAN) according to an embodiment of the present disclosure includes: receiving a first wake-up frame through wake-up radio (WUR); monitoring primary connectivity radio (PCR) according to reception of the first wake-up frame; and receiving a PCR beacon frame through the PCR, wherein the STA maintains monitoring of the WUR for a predetermined period while monitoring the PCR and ends monitoring of the WUR when the STA detects a second wake-up frame indicating transmission of unicast data through the WUR or succeeds in transmitting an uplink (UL) PCR frame to an access point (AP) even before the predetermined period has elapsed.

公开(公告)号：US20200029363A1

公开(公告)日：2020-01-23

申请号：US16586835

申请日：2019-09-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04L27/26 ,  H04W74/00 ,  H04W72/08

Abstract: A method for performing, by a station (STA) apparatus, uplink (UL) multi-user (MU) transmission in a wireless communication system according to an embodiment of the present invention includes performing carrier sensing on a channel, receiving a trigger frame including information for UL MU transmission and a carrier sense indicator indicating whether a result of the carrier sensing is to be reflected from an access point (AP), and transmitting an UL MU frame through the channel based on the information for UL MU transmission. The UL MU frame is transmitted through the channel based on a result of the carrier sensing if the carrier sense indicator indicates the reflection of a result of the carrier sensing. The UL MU frame is transmitted through the channel regardless of a result of the carries sensing if the carrier sense indicator does not indicate the reflection of a result of the carrier sensing.

公开(公告)号：US20190297567A1

公开(公告)日：2019-09-26

申请号：US16441817

申请日：2019-06-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W74/06 ,  H04W84/12 ,  H04W4/06

Abstract: Disclosed are a method and a device for triggering a plurality of PS-poll frames in a wireless LAN. The method for triggering a plurality of PS-poll frames in a wireless LAN can comprise the steps of: transmitting, by an AP, a beacon frame; transmitting, by the AP, a first PS-poll trigger frame within a beacon interval; receiving, by the AP, a plurality of first PS-poll frames transmitted on the basis of a UL MU transmission by a first STA group as a response to the first PS-poll trigger frame; transmitting, by the AP, a plurality of first downlink data frames to a plurality of STAs on the basis of a DL MU transmission as a response to the plurality of first PS-poll frames; transmitting, by the AP, a second PS-poll trigger frame within a beacon interval; receiving, by the AP, a plurality of second PS-poll frames transmitted on the basis of the UL MU transmission by a second STA group as a response to the second PS-poll trigger frame; and transmitting, by the AP, a plurality of second downlink data frames to the plurality of STAs on the basis of the DL MU transmission as a response to the plurality of second PS-poll frames.

公开(公告)号：US20190261269A1

公开(公告)日：2019-08-22

申请号：US16404080

申请日：2019-05-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12 ,  H04W76/28

Abstract: A method for UL MU transmission of an STA operating in a power save mode comprises the steps of: transmitting a TWT request element including first information related to a requested TBTT of a first beacon frame and second information related to a requested wake interval between subsequent beacon frames the STA intends to receive to an AP; receiving a TWT response element from the AP in response to the TWT request element; switching to a doze state from the awake state after receiving the TWT response element; switching to the awake state from the doze state based on the third information in order to receive the first beacon frame from the AP; receiving the first beacon frame including fifth information related to a trigger transmission time of a trigger frame soliciting the UL MU transmission from one or more STAs from the AP.

公开(公告)号：US20190075583A1

公开(公告)日：2019-03-07

申请号：US16093605

申请日：2017-04-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W74/04 ,  H04W28/02 ,  H04W28/06

Abstract: A method for an uplink transmission in a wireless LAN system according to one embodiment of the present specification comprises the steps of: transmitting, to an AP, buffer state information for reporting the buffer state of a user STA, the buffer state information comprising a scaling factor configured by the user STA on the basis of a plurality of weighted values for indicating the amount of buffered traffic in the user STA; and transmitting an uplink as a response for a trigger frame when the trigger frame, generated on the basis of the buffer status information, is received from the AP, wherein the trigger frame is a frame comprising a plurality of uplink resource units individually allocated for a plurality of user STAs.

公开(公告)号：US20190029038A1

公开(公告)日：2019-01-24

申请号：US16139743

申请日：2018-09-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W84/12 ,  H04B17/318 ,  H04W24/02 ,  H04L29/08

Abstract: The present document relates to a method for determining whether a corresponding medium (for example, a channel) is reusable so as to improve a space reuse rate in a wireless communication system, particularly, a wireless LAN system, and an apparatus for the same. To this end, a station receives a wireless LAN signal through a specific wireless medium, compares the received signal intensity of the wireless LAN signal with a CCA level selected from between a first CCA level and a second CCA level lower than the first CCA level according to the type of the received wireless LAN signal, determines that the corresponding wireless medium is usable if the received signal intensity is lower than the selected CCA level, and can use the wireless medium in a signal transmission.

公开(公告)号：US20180317242A1

公开(公告)日：2018-11-01

申请号：US15771901

申请日：2016-10-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W74/08

CPC classification number: H04W74/00 ,  H04W74/08 ,  H04W84/12

Abstract: A method for transmitting uplink frames of multiple users in a wireless LAN system according to an embodiment of the present invention comprises the steps of: an STA performing a countdown operation of a backoff counter for a contention-based channel access; the STA receiving a trigger frame which individually allocates uplink radio resources for the multiple users; the STA suspending the countdown operation until the uplink transmission of the trigger-based frame is terminated, wherein the trigger-based frame is a frame transmitted through an overlapped time interval in response to the trigger frame; determining whether the STA receives an acknowledgment (ACK) frame corresponding to the trigger-based frame from an AP; and if the STA fails to receive the ACK frame from the AP, the STA resuming a suspended countdown operation.

公开(公告)号：US20180213596A1

公开(公告)日：2018-07-26

申请号：US15925663

申请日：2018-03-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04W84/12 ,  H04W88/10 ,  H04W74/08 ,  H04L12/801 ,  H04W72/04 ,  H04W28/02 ,  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：US20180167882A1

公开(公告)日：2018-06-14

申请号：US15564025

申请日：2016-04-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W72/04 ,  H04W72/12

Abstract: One embodiment of the present invention is a method for a STA transmitting/receiving a frame in a wireless communication system, the method for transmitting/receiving a frame comprising the steps of: receiving a beacon frame comprising TIM information and trigger frame information; and entering into doze mode, wherein the trigger frame information comprises information indicating the existence or not of resource allocation for random access, and the trigger frame information comprises UL MU frame type information.

公开(公告)号：US20180152960A1

公开(公告)日：2018-05-31

申请号：US15102864

申请日：2014-12-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W74/08 ,  H04W76/27 ,  H04W48/12 ,  H04W72/04

CPC classification number: H04W72/1273 ,  H04W48/12 ,  H04W72/042 ,  H04W74/0816 ,  H04W76/20 ,  H04W76/27 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for performing communication using a downlink (DL) oriented channel in a high-density wireless LAN system and an apparatus therefor. A particular station STA1 configured therefor connects with an AP through a normal channel, switches to a downlink oriented channel during an active mode operation, and receives data from the AP through the DL oriented channel. Meanwhile, data is transmitted to the AP through switching to the normal channel. Here, the first station obtains information on a specific interval for receiving data from the AP through the downlink oriented channel, switches to the normal channel during an interval other than the specific interval, and transmits data to the AP.