公开(公告)号：US20180115947A1

公开(公告)日：2018-04-26

申请号：US15567432

申请日：2016-05-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W76/28

Abstract: According to an embodiment of the present invention, a method in which a station (STA) operates in a power saving (PS) mode in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: receiving a trigger frame for allocating a resource for uplink multi-user (UL MU) PPDU transmission; and determining whether the STA shifts into a doze state, on the basis of the trigger frame, wherein the STA determines to shift into the doze state when the resource is not allocated to the STA through the trigger frame, and a time interval in which the STA operates in the doze sate may be determined on the basis of a PS mode field included in the trigger frame.

公开(公告)号：US20180098352A1

公开(公告)日：2018-04-05

申请号：US15567489

申请日：2016-05-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/04

CPC classification number: H04W74/04 ,  H04L1/00 ,  H04L1/1685 ,  H04W12/06 ,  H04W74/08 ,  H04W84/12

Abstract: According to an embodiment of the present invention, a method for 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) comprises the steps of: receiving a frame including an HE-SIG A field and an MAC header; and updating an NAV on the basis of a transmission opportunity duration (TXOP) field included in the HE-SIG A field, wherein, in the step of updating the NAV, the STA may set, for the NAV of the STA, a TXOP duration value indicated by the TXOP duration field when the TXOP duration value indicated by the TXOP duration field is larger than a current NAV value configured by the STA, and the STA may reset the NAV of the STA without comparison with the current NAV value when the TXOP duration field indicates a predetermined value.

公开(公告)号：US20170367118A1

公开(公告)日：2017-12-21

申请号：US15540992

申请日：2015-12-30

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Kiseon RYU ,  Jeongki 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

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：US20170367096A1

公开(公告)日：2017-12-21

申请号：US15587267

申请日：2017-05-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04L1/00 ,  H04L5/00 ,  H04L5/0053 ,  H04L5/0091 ,  H04W28/18 ,  H04W84/12

Abstract: The present specification proposes a signal processing method for changing an operating mode for configuring a physical-layer protocol data unit (PPDU). Specifically, a first station receives, from a second station, first indication information and second indication information, which indicate a change of an operating mode indicating a number of spatial streams and a channel bandwidth which are supported by the second station. The first station configures a PPDU for the second station using last received indication information of the first indication information and the second indication information. Here, the first indication information is received through an operating mode indication (OMI) field, the second indication information is received through an operating mode notification (OMN) field, and the OMI field and the OMN field are not received through the same PPDU.

公开(公告)号：US20170338931A1

公开(公告)日：2017-11-23

申请号：US15522727

申请日：2015-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

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

CPC classification number: H04L5/0055 ,  H04L1/16 ,  H04L5/005 ,  H04W84/12

Abstract: The present document relates to a method for transmitting an acknowledgment/negative-acknowledgment (ACK/NACK) signal for data transmitted from a plurality of stations (STAs) by an access point (AP) in a wireless LAN (WLAN) system and an apparatus therefor. To this end, the AP transmits a trigger frame to the plurality of STAs, receives data transmitted from the plurality of STAs in response to the trigger frame, and transmits and ACK/ANCK signal for the data received from the plurality of STAs. In this process, when all the data received from the plurality of STAs have been successfully received, the ACK/NACK signal may be transmitted not using a block ACK frame but using an ACK frame.

公开(公告)号：US20170338910A1

公开(公告)日：2017-11-23

申请号：US15522756

申请日：2015-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Hangyu CHO

IPC: H04L1/16 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04L1/16 ,  H04L1/00 ,  H04L1/1671 ,  H04W72/0413 ,  H04W84/12

Abstract: A method for performing an uplink (UL) multi-user (MU) transmitting performed by a station (STA) apparatus in a Wireless LAN (WLAN) system according to an embodiment of the present invention may include receiving a downlink (DL) MU frame; generating a UL MU Acknowledge (ACK) frame; and UL MU transmitting the UL MU ACK frame, wherein the UL MU ACK frame includes a legacy preamble, a high efficiency (HE) preamble and an Acknowledge (ACK) field, and is UL MU transmitted by being constructed as a null data packet (NDP) frame format that does not include a data field.

公开(公告)号：US20170310448A1

公开(公告)日：2017-10-26

申请号：US15517911

申请日：2015-10-27

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04L5/00 ,  H04W72/04 ,  H04W84/12 ,  H04W72/12

CPC classification number: H04L5/0055 ,  H04L1/00 ,  H04L1/16 ,  H04L1/1614 ,  H04L1/1635 ,  H04L1/1685 ,  H04L2001/0093 ,  H04W72/042 ,  H04W72/121 ,  H04W84/12

Abstract: The present specification relates to a method of an access point (AP) transmitting a block acknowledgement (ACK) signal with respect to transmission data of a plurality of stations (STA) in a wireless LAN (WLAN) system, and an apparatus therefor. To this end, an AP transmits a multi-STA BA frame with respect to data received from the plurality of STA, wherein the multi-STA BA frame includes a MAC header field, a BA control field and a BA information field. In this regard, the BA information field may include: AID information with respect to one or more STA to which ACK/NACK is transmitted from the plurality of STA; and an individual information field including BA indicator information that indicates whether the BA information field includes one or more of a block ACK bitmap sub-field and a starting sequence control sub-field.

公开(公告)号：US20170290060A1

公开(公告)日：2017-10-05

申请号：US15470667

申请日：2017-03-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W72/04

CPC classification number: H04W74/0816 ,  H04W72/0453 ,  H04W74/006 ,  H04W84/12

Abstract: According to an embodiment of the present specification, a method of transmitting a frame in a wireless local area network (WLAN) includes: receiving, by a user station (STA), a multi user-request to send (MU-RTS) frame from an access point (AP) to protect transmission for multi-users, wherein the MU-RTS frame includes common information commonly allocated to the multi-users, user-specific information individually allocated to the multi-users, and a control indicator indicating a first operation mode using a first channel and a second channel contiguous to the first channel and a second operation mode using the first channel and a third channel non-contiguous to the first channel; and transmitting, by the user STA, a clear to send (CTS) frame to the AP according to the control indicator in response to the MU-RTS frame.

公开(公告)号：US20170289911A1

公开(公告)日：2017-10-05

申请号：US15505550

申请日：2015-08-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W72/04

CPC classification number: H04W52/0235 ,  H04W28/06 ,  H04W72/0446 ,  H04W74/00 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

Abstract: The present specification relates to a method for transmitting signals by a station (STA) which operates in a wireless LAN system. Here, the method for transmitting signals by a station can comprise: a step of receiving a first frame for converting a power saving (PS) mode, from an access point (AP) station, to an awake mode; and a step of transmitting a second frame for informing the awake mode of the station in response to the first frame. Here, the second frame can be a null data packet (NDP) frame.

公开(公告)号：US20170279570A1

公开(公告)日：2017-09-28

申请号：US15505906

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W74/00 ,  H04J11/00

CPC classification number: H04L5/0007 ,  H04J11/005 ,  H04L5/0037 ,  H04L5/0094 ,  H04L5/0096 ,  H04W74/006 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for performing efficient signaling for a reserved sub-band in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, an STA provides resource allocation information for transmitting data to a plurality of STAs using an orthogonal frequency divisional multiple access (OFDMA) or multiple user MIMO (MU-MIMO) method; transmits the resource allocation information to the plurality of STAs; and transmits data to the plurality of STAs according to the resource allocation information. The entire frequency band may include a sub-band which is not used for the data transmission, and it is preferable that the resource allocation information includes a resource allocation bitmap having a form common to the plurality of STAs and indication information which informs a sub-band, from among the entire frequency band, which is not used for the data transmission.