公开(公告)号：US20170325266A1

公开(公告)日：2017-11-09

申请号：US15319492

申请日：2015-01-09

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04W74/0833 ,  H04W72/0413 ,  H04W72/0446 ,  H04W74/06 ,  H04W74/0808 ,  H04W84/12

Abstract: Disclosed are a method and apparatus for transmitting a frame. A method for transmitting a frame in a wireless LAN comprises the steps of: an STA receiving an uplink transmission trigger frame from an access point (AP), wherein the uplink transmission trigger frame triggers the transmission of an uplink frame of an STA on an overlapping time resource, and triggers the transmission of one other uplink frame of at least one other STA; the STA transmitting the uplink frame to the access point (AP) through an allocated uplink transmission resource; and the STA performing a backoff process based on channel access parameters, which have been determined according to the success of the uplink frame transmission.

公开(公告)号：US20170318518A1

公开(公告)日：2017-11-02

申请号：US15582425

申请日：2017-04-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04W40/24 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W40/24 ,  H04W74/002 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: According to an embodiment of the present specification, a method for accessing a wireless medium in a wireless local area network (LAN) system includes: receiving, by a wireless device, from an access point (AP) a packet including identification information indicating a receiving device which solicits a response frame, wherein the identification information is information included in a physical layer (PHY) header of the packet, the packet includes a broadcast frame, and the broadcast frame includes duration information indicating a time for deferring the access to the wireless medium; and if the wireless device is not the receiving device indicated by the identification information, setting, by the wireless device, a network allocation vector (NAV) on the basis of the duration information.

公开(公告)号：US20170311310A1

公开(公告)日：2017-10-26

申请号：US15517486

申请日：2015-10-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W28/02 ,  H04L5/00 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W72/0413 ,  H04L5/0037 ,  H04L5/0055 ,  H04W28/0278 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed is a method and device for allocating uplink transmission resources on the basis of buffer status information in a wireless LAN. The method for allocating uplink transmission resources on the basis of buffer status information in a wireless LAN comprises: a step for transmitting, by an AP, a downlink frame containing buffer status report request information to multiple STAs; a step for receiving, by the AP, a plurality of uplink frames on superposed time resources from the multiple STAs, wherein the plurality of uplink frames contain a plurality of pieces of buffer status information of the multiple STAs that are generated on the basis of the buffer status report request information; and a step for determining, by the AP, uplink transmission resources to be allocated to the multiple STAs on the basis of the plurality of pieces of buffer status information.

公开(公告)号：US20170310424A1

公开(公告)日：2017-10-26

申请号：US15516325

申请日：2015-10-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/16 ,  H04B7/06 ,  H04W72/04 ,  H04L1/00 ,  H04L29/06 ,  H04B7/0413 ,  H04W84/12

CPC classification number: H04L1/16 ,  H04B7/0413 ,  H04B7/063 ,  H04L1/0025 ,  H04L1/0027 ,  H04L29/06 ,  H04W72/0413 ,  H04W72/0466 ,  H04W84/12

Abstract: Disclosed is a downlink (DL) multi-user (MU) transmission method of an AP device in a wireless local area network (WLAN) system including generating a DL MU physical protocol data unit (PPDU) including a physical preamble and a data field, the data field including at least one MAC protocol data unit (MPDU), the at least one MPDU including a MAC header and a MAC frame body, and the MAC header including ACK indication information for uplink (UL) MU transmission of an ACK frame as a response to data transmitted through the data field, and transmitting the DL MU PPDU.

公开(公告)号：US20170302417A1

公开(公告)日：2017-10-19

申请号：US15510212

申请日：2015-07-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L27/26 ,  H04B7/04 ,  H04W84/12

CPC classification number: H04L5/0044 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L27/26 ,  H04L27/2613 ,  H04L27/2628 ,  H04W84/12

Abstract: According to an embodiment of the present invention, a data transmission method for a station (STA) device in a wireless LAN (WLAN) system includes the steps of: generating a physical protocol data unit (PPDU) that includes a physical preamble and a data field; and transmitting the PPDU. Therein: the whole transmission band of the PPDU is made up of a plurality of resource units in a frequency region; each of the plurality of resource units is configured from a preset number of tones; resource units, from among the plurality of resource units, that have the same logical index are allocated to the same STA; and the resource units that have the same logical index may be discontinuously located in the frequency region.

公开(公告)号：US20170295560A1

公开(公告)日：2017-10-12

申请号：US15508076

申请日：2016-05-20

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W72/02 ,  H04W72/04 ,  H04L5/00

Abstract: According to an embodiment of the present invention, a method of managing a network allocation vector (NAV) by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) includes: receiving a frame including duration information; selecting a predetermined NAV from a plurality of NAVs of the STA; and managing the predetermined NAV based on the duration information of the frame, wherein the predetermined NAV is selected based on whether the frame has been received from a basic service set (BSS) to which the STA belongs.

公开(公告)号：US20170280383A1

公开(公告)日：2017-09-28

申请号：US15508457

申请日：2015-09-02

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04W52/02 ,  H04W4/06 ,  H04W74/06 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/22

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：US20170273140A1

公开(公告)日：2017-09-21

申请号：US15505607

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

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

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

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：US20170238286A1

公开(公告)日：2017-08-17

申请号：US15502973

申请日：2015-08-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/042 ,  H04L1/00 ,  H04L1/16 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0064 ,  H04L5/0091 ,  H04L27/0008 ,  H04W72/0413 ,  H04W72/0446

Abstract: The present invention discloses a method and device for downlink multi-user (DL MU) transmission in a wireless communication system. In particular, the method for downlink multi-user data transmission in the wireless communication system includes the steps of receiving, by a station (STA), a DL MU data frame from an access point (AP) and transmitting, by the STA, an acknowledgement (ACK) frame in response to the DL MU data frame, wherein a plurality of ACK frames transmitted by a plurality of STAs in response to the DL MU data frame is multiplexed to configure an uplink multi-user (UP MU) ACK frame, and the time and/or size of a frequency resource at which the ACK frame is transmitted may be determined according to the level of a modulation and coding scheme (MCS) that is applied to the ACK frame.

公开(公告)号：US20170230964A1

公开(公告)日：2017-08-10

申请号：US15424674

申请日：2017-02-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W28/20 ,  H04W74/08 ,  H04B7/0452 ,  H04L1/00

CPC classification number: H04W72/0413 ,  H04B7/0452 ,  H04B7/0689 ,  H04L1/0009 ,  H04L1/0025 ,  H04W72/0453 ,  H04W74/004 ,  H04W84/12

Abstract: A method for a WLAN system of the present invention comprises receiving, by an AP, a request frame requesting change of operating mode of a receiving STA associated with the AP from the receiving STA, wherein the request frame includes a control indicator indicating whether the receiving STA participates in UL MU MIMO transmission, and transmitting a trigger frame for a plurality of user STAs participating in the UL MU MIMO transmission based on the request frame, wherein the trigger frame includes identification information for the plurality of user STAs, resource allocation information for allocation of uplink frequency resources allocated individually for the plurality of user STAs, time information indicating a time interval during which the UL MU MIMO transmission is performed, and coding information indicating a channel coding scheme allocated for each of the plurality of user STAs.