公开(公告)号：US20190082387A1

公开(公告)日：2019-03-14

申请号：US16081371

申请日：2017-04-26

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W52/02 ,  H04W88/08 ,  H04W72/04

Abstract: When an AP senses a BSS Color collision with a neighbor BSS in a wireless LAN system, the AP can notify a STA of the collision through information indicating whether the BSS Color is deactivated, and the STA performs intra-PDDU power saving only when the information indicating whether the BSS Color is deactivated does not indicate a deactivation.

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：US20190069283A1

公开(公告)日：2019-02-28

申请号：US16171142

申请日：2018-10-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W74/00 ,  H04L1/00 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W72/044 ,  H04L1/00 ,  H04L1/0075 ,  H04W72/04 ,  H04W74/006 ,  H04W84/12 ,  H04W88/08

Abstract: According to an embodiment of the present invention, a method for transmitting a frame by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: configuring a first duration field included in an HE-SIG A field; and transmitting a frame including the HE-SIG A field and an MAC header, wherein the first duration field may be configured to indicate a transmission opportunity (TXOP) value using a number of bits smaller than that of a second duration field included in the MAC header, and a granularity of a time unit used in the first duration field in order to indicate the TXOP value may be configured to be different from a granularity of a time unit used in the second duration field.

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：US20180332529A1

公开(公告)日：2018-11-15

申请号：US15771658

申请日：2016-11-18

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W52/02 ,  G06F1/32 ,  H04B7/26

CPC classification number: H04W52/0238 ,  G06F1/3209 ,  H04B7/2612 ,  H04W52/02 ,  H04W52/0206 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/14

Abstract: A method for a station (STA) 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 physical layer protocol data unit (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 comprises an aggregate MAC protocol data unit (A-MPDU), then the STA can determine whether to operate in a doze state by considering whether any one from among a receiver address (RA) or a transmitter address (TA) included in the A-MPDU matches the BSSID of a basic service set (BSS) associated with the STA.

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：US20180220456A1

公开(公告)日：2018-08-02

申请号：US15747751

申请日：2016-07-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Kiseon RYU

IPC: H04W74/08 ,  H04W48/16

CPC classification number: H04W74/0808 ,  H04W48/16 ,  H04W74/06 ,  H04W84/12

Abstract: In an embodiment of the present invention, a method for indicating, by an access point (AP) associated with a first basic service set (BSS), spatial reuse (SR) in a wireless LAN (WLAN) system includes transmitting a trigger frame which requests uplink multi-user (UL MU) transmission of a plurality of stations (STAs) and receiving an UL MU physical protocol data unit (PPDU) generated based on the trigger frame from the plurality of STAs. The trigger frame may include SR indication information for indicating the SR of an overlapping BSS (OBSS) STA. The first high efficiency (HE)-signal (SIG) A field of the UL MU PPDU may include SR support information generated based on the SR indication information.

公开(公告)号：US20180220443A1

公开(公告)日：2018-08-02

申请号：US15506223

申请日：2015-08-31

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W74/06 ,  H04W72/04 ,  H04W28/20

CPC classification number: H04W72/1278 ,  H04W28/20 ,  H04W72/0406 ,  H04W72/1289 ,  H04W74/04 ,  H04W74/06 ,  H04W84/12

Abstract: The present specification discloses a method by which a station (STA) operating in a wireless LAN system transmits a signal. Here, the method comprises the steps of: receiving a first frame including resource allocation information from an AP station; and transmitting a second frame to the AP station on the basis of the resource allocation information, wherein the first frame includes an allocation type part and a trigger frame body part, and the second frame can be set to an NDP frame and the trigger frame body part can include allocation information on the NDP frame when the allocation type part is set to a first value.

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.