公开(公告)号：US20180310330A1

公开(公告)日：2018-10-25

申请号：US15527692

申请日：2015-11-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04L5/00

CPC classification number: H04W72/1284 ,  H04L5/0053 ,  H04L5/0091 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/1289 ,  H04W74/006 ,  H04W74/0833

Abstract: Disclosed is an uplink (UL) multi-user (MU) transmission method by a station (STA) in a wireless LAN (WLAN) system. The uplink multi-user transmission method by an STA in a WLAN system according to the present invention includes the steps of: receiving a trigger frame including resource unit allocation information for orthogonal frequency division multiple access (OFDMA) transmission; transmitting a UL MU physical protocol data unit (PPDU) frame, on the basis of frequency resource allocation information; and receiving an ACK frame for the UL MU PPDU.

公开(公告)号：US20180263047A1

公开(公告)日：2018-09-13

申请号：US15534279

申请日：2015-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Wookbong LEE ,  Hangyu CHO

IPC: H04W72/12 ,  H04L29/06 ,  H04W74/00 ,  H04L5/00 ,  H04W52/02

CPC classification number: H04W72/1205 ,  H04L5/0053 ,  H04L5/0094 ,  H04L67/04 ,  H04L69/22 ,  H04L69/324 ,  H04W52/0216 ,  H04W74/002 ,  H04W74/006 ,  H04W74/02 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/22

Abstract: Disclosed are a method and an apparatus for transmitting a data unit on the basis of a trigger frame. A method of transmitting a data unit in a wireless LAN may comprise the steps in which: an STA receives a trigger frame from an AP; and in response to the trigger frame, the STA transmits, to the AP, an UL MU PPDU on a sub-channel, wherein a PPDU header of the UL MU PPDU comprises a MAC indicator field and at least one MAC header field, the MAC indicator field comprises at least one sub-indicator, each of the at least one sub-indicator indicates whether or not each of the at least one MAC header field is present, and each of the at least one MAC header field may correspond to each of the at least one field included in the MAC header of the UL MU PPDU.

公开(公告)号：US20180254857A1

公开(公告)日：2018-09-06

申请号：US15756921

申请日：2016-09-01

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04L1/16 ,  H04L5/00

CPC classification number: H04L1/1621 ,  H04L1/1614 ,  H04L5/0055 ,  H04L5/0094 ,  H04L2001/0093 ,  H04W84/12

Abstract: Disclosed are a method and a device by which an access point (AP) transmits a block ACK (BA) signal for transmission data of a plurality of stations (STAs) in a wireless LAN (WLAN) system. To this end, an AP receives data from a plurality of STAs, and transmits a first multi-STA BA frame (M-BA frame) for the data received from the plurality of STAs, wherein the first M-BA frame includes a MAC header field, a BA control field, and a BA information field, a last N bit of the BA control field indicates at least one from among the number of pieces of BA information included in the first M-BA frame and information on a succeeding ACK frame, and N is set to 5 or more.

公开(公告)号：US20180242362A1

公开(公告)日：2018-08-23

申请号：US15751142

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08 ,  H04W74/00 ,  H04W24/10 ,  H04W48/16 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04W24/10 ,  H04W48/16 ,  H04W74/002 ,  H04W74/085 ,  H04W84/12

Abstract: Provided is a network allocation vector (NAV) operation method by a station (STA) operating in a wireless LAN (WLAN) system. An STA receiving a particular frame, if the frame is a frame for a basic service set (BSS) to which the corresponding STA belongs, determines whether or not a received signal strength indicator (RSSI) is higher than the first clear channel assessment (CCA) level and, if the corresponding frame is not a frame for a BSS to which the STA belongs, determines if the RSSI is higher than the second CCA level which is higher than the first CCA level. If the RSSI is higher than the first CCA level or the second CCA level, the STA updates NAV. If the received frame is a request to send (RTS) frame or a clear to send (CTS) frame, the received frame comprises additional information used for determining whether or not the RTS frame or the CTS frame is a frame for a BSS to which the STA belongs.

公开(公告)号：US20180220357A1

公开(公告)日：2018-08-02

申请号：US15747685

申请日：2016-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W48/02 ,  H04W48/08 ,  H04L5/00

CPC classification number: H04W48/02 ,  H04L1/00 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0073 ,  H04L1/1607 ,  H04L1/1614 ,  H04L1/1854 ,  H04L5/0048 ,  H04L5/0055 ,  H04W48/08 ,  H04W74/08 ,  H04W84/12

Abstract: According to one embodiment of the present invention, a method by which a station (STA) performs an extended inter-frame space (EIFS) operation in a wireless LAN system supporting multi-user (MU) transmission comprise the steps of: receiving a MU frame including a SIG-A field and a SIG-B field; estimating, by other STAs for receiving the MU frame, an ACK transmission time (ACK Tx Time) required for transmitting ACK information when the MU frame causes the EIFS operation; and delaying channel access during an EIFS time determined on the basis of the estimated ACK transmission time, wherein the step for estimating the ACK transmission time enables the estimation of the ACK transmission time by assuming the lowest MCS level among modulation and coding scheme (MCS) levels used for the transmission of the ACK information, and the minimum resource (RU) among the RUs used for the transmission of the ACK information.

公开(公告)号：US20180212738A1

公开(公告)日：2018-07-26

申请号：US15745663

申请日：2016-01-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L29/06

CPC classification number: H04L5/0055 ,  H04L1/1685 ,  H04L27/26 ,  H04L69/22 ,  H04W84/12

Abstract: A method for performing an uplink (UL) multi-user (MU) transmission performed by a station (STA) device in a Wireless LAN (WLAN) system according to an embodiment of the present invention may include receiving a Downlink (DL) MU Physical Protocol Data Unit (PPDU) including a physical preamble and a data field; and where the data field includes at least one Mac Protocol Data Unit (MPDU), where the at least one MPDU includes a trigger frame or a MAC header, where the trigger frame or the MAC header includes trigger information for a UL MU transmission of an ACK (Acknowledge) frame, and performing a UL MU transmission of the ACK frame in response to the DL MU PPDU based on the trigger information.

公开(公告)号：US20180192372A1

公开(公告)日：2018-07-05

申请号：US15785247

申请日：2017-10-16

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02

CPC classification number: H04W52/0229 ,  H04L43/10 ,  H04W40/244 ,  H04W72/0413 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/22

Abstract: Disclosed herein is a method for performing power management in a wireless LAN system and a wireless device using the same, wherein the method may include the steps of receiving, by a first wireless device, a beacon frame including a first time wake time (TWT) flow identifier (TWT FID) indicating a type of first recommendation frame authorized to be transmitted during a first TWT service period and a second TWT flow identifier (TWT FID) indicating a type of second recommendation frame authorized to be transmitted during a second TWT service period, from a second wireless device, after receiving the beacon frame, shifting, by the first wireless device, from an awake state to a doze state, and receiving, by the first wireless device, a change frame for changing the second TWT flow identifier during the first TWT service period from the second wireless device.

公开(公告)号：US20180069678A1

公开(公告)日：2018-03-08

申请号：US15695498

申请日：2017-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04L5/00 ,  H04W72/12

CPC classification number: H04L5/0055 ,  H04L1/1657 ,  H04L1/1854 ,  H04L1/1864 ,  H04L5/0053 ,  H04L5/0094 ,  H04L69/324 ,  H04W72/1284 ,  H04W84/12 ,  H04W92/18

Abstract: A method and apparatus for a first station (STA) to transmit an acknowledgement (ACK) signal to a second STA in a wireless local area network (WLAN) are disclosed. For this end, the first STA receive a first type frame aggregated with a second type frame from the second STA, wherein the first type frame does not include a quality of service (QoS) control field while the second type frame includes the QoS control field. Then, the first STA transmits an ACK signal for the first type frame to the second STA based on an ACK policy of the QoS control field of the second type frame.

公开(公告)号：US20180049240A1

公开(公告)日：2018-02-15

申请号：US15549997

申请日：2015-08-07

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04W74/006 ,  H04W74/0833 ,  H04W84/12

Abstract: A method and an apparatus for increasing transmission coverage of an STA performing an initial access in a wireless LAN are disclosed. An initial access method in a wireless LAN can comprise the steps of: transmitting a trigger frame on a channel by an AP; receiving, by the AP, a first probe request frame transmitted on a first sub-channel by a first STA as a response to the trigger frame; and transmitting, by the AP, on the channel, an MU PPDU including a first probe response frame, which is a response to the first probe request frame, and a second probe response frame, which is a response to the second probe request frame, wherein the channel can include the first sub-channel and the second sub-channel.

公开(公告)号：US20170353887A1

公开(公告)日：2017-12-07

申请号：US15534154

申请日：2015-08-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W28/04 ,  H04W28/06 ,  H04L29/06

CPC classification number: H04W28/04 ,  H04L1/0041 ,  H04L1/0072 ,  H04L69/04 ,  H04L69/22 ,  H04W28/06

Abstract: A method and device for transmitting a frame including error check bits for a header in a wireless LAN are disclosed. The method for transmitting a frame in a wireless LAN can comprise the steps of: generating, by an STA, a frame to be transmitted to an AP; and transmitting, by the STA, the frame to the AP, wherein the frame is an A-MPDU, the A-MPDU includes an A-MPDU header subframe and an A-MPDU subframe, the A-MPDU header subframe includes a first MPDU, the A-MPDU subframe includes a second MPDU, the first MPDU, as an MPDU, includes a first MAC header, expect for a MAC body, and the second MPDU, as an MPDU, can include the MAC body and a second MAC header.