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.

公开(公告)号：US20170257231A1

公开(公告)日：2017-09-07

申请号：US15519824

申请日：2016-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04L25/03 ,  H04B7/0413 ,  H04W52/52

CPC classification number: H04L25/03 ,  H04B7/0413 ,  H04L5/0048 ,  H04L25/0224 ,  H04L27/2613 ,  H04W52/52 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. The STF signal that is suggested, for example, can be used for an 80 MHz band and can be generated based on a sequence in which a predetermined M sequence is repeated. Also, the disclosed STF signal can be used for a 1× STF signal from the 1× STF signal and a 2× STF signal. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

公开(公告)号：US20170251432A1

公开(公告)日：2017-08-31

申请号：US15502489

申请日：2015-02-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W40/24 ,  H04W72/04

CPC classification number: H04W52/0229 ,  H04L69/323 ,  H04W40/244 ,  H04W52/028 ,  H04W72/0413 ,  H04W72/0446 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/22

Abstract: Disclosed are a power save mode-based operating method and apparatus in a wireless LAN. The power save mode-based operating method in a wireless LAN comprises the steps of: receiving, by an STA, overheard BSS information from an AP; receiving, by the STA, a PPDU, wherein the PPDU includes information on a BSS having transmitted the PPDU; determining, by the STA, whether the overheard BSS information includes the information on the BSS; and switching an awake state to a doze state when the STA determines whether the overheard BSS information includes the information on the BSS, wherein the overheard BSS information can include the information on at least one overheard BSS for transmitting a frame enabled to be overheard by the AP.

公开(公告)号：US20170230981A1

公开(公告)日：2017-08-10

申请号：US15515522

申请日：2016-06-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W52/54 ,  H04W74/08

CPC classification number: H04W72/0453 ,  H04W52/14 ,  H04W52/146 ,  H04W52/54 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/00 ,  H04W74/006 ,  H04W74/08 ,  H04W74/0808 ,  H04W74/0891 ,  H04W84/12

Abstract: Proposed is a method for determining transmission using a network allocation vector (NAV) in a wireless LAN system. Specifically, after a receiving device receives a trigger frame, which triggers an uplink multiple user transmission, from a transmitting device, whether to transmit an uplink physical layer protocol data unit (PPDU) corresponding to the trigger frame is determined using the NAV of the receiving device. In this case, if the NAV is established by an intra-basic service set (BSS) frame, whether to transmit the uplink PPDU is determined without taking the NAV into consideration.

公开(公告)号：US20170230963A1

公开(公告)日：2017-08-10

申请号：US15424629

申请日：2017-02-03

Applicant: LG ELECTRONICS INC.

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

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

Abstract: This specification proposes a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. More specifically, a first station transmits request information requesting for a change in the operating mode to a second station. The first station transmits a first PPDU supporting a first wireless LAN system to the second station based on the request information. The first station receives a Block ACK (BA) as a response to the first PPDU. The request information includes delay time information indication a time during which indication information is applied.

公开(公告)号：US20170223770A1

公开(公告)日：2017-08-03

申请号：US15515123

申请日：2015-04-08

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Wookbong LEE ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Hangyu CHO ,  Eunsung PARK

IPC: H04W88/06 ,  H04L5/00 ,  H04W74/00 ,  H04L27/26 ,  H04W48/10 ,  H04W48/12 ,  H04W84/12 ,  H04W84/04

CPC classification number: H04W88/06 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/26 ,  H04L27/2613 ,  H04W48/10 ,  H04W48/12 ,  H04W74/004 ,  H04W74/006 ,  H04W84/045 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for transmitting a frame in a high-density wireless LAN system, and a station device for performing the method. To this end, a station for transmitting a frame is comprised of a radio frame for a second type station comprising a frame portion for a first type station and a frame portion for the second type station, wherein the frame portion for the first type station comprises a first OFDM symbol for transmitting a signaling field (L-SIG) for the first type station, and the frame portion for the second type station comprises one or more second OFDM symbols for transmitting a signaling field (HE-SIG) for the second type station. Additionally, the radio frame for the second type station further comprises one or more third OFDM symbols for transmitting the L-SIG and the HE-SIG repeatedly.

公开(公告)号：US20170223693A1

公开(公告)日：2017-08-03

申请号：US15514781

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04

CPC classification number: H04W72/048 ,  H04L5/0007 ,  H04L5/0041 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/26 ,  H04W72/0413 ,  H04W72/0453 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more specifically, to a method for flexibly supporting resource allocation in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, a first STA configures a radio frame comprising: a signaling (SIG) field including control information; and a data field in which data can be transmitted via a discontinuous channel or a channel having a bandwidth size that is supported by a legacy system. When the first STA transmits the configured radio frame to a second STA, the SIG field preferably comprises: information about a full bandwidth in which data can be transmitted via the data field; and null indicator information indicating a channel region of the full bandwidth that is not used in data transmission, or used channel indicator information indicating a channel region of the full bandwidth that is used in data transmission.

公开(公告)号：US20170208625A1

公开(公告)日：2017-07-20

申请号：US15327013

申请日：2015-12-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W72/08

CPC classification number: H04W74/0808 ,  H04L27/26 ,  H04W72/085 ,  H04W74/006 ,  H04W88/08

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.