公开(公告)号：US10231215B2

公开(公告)日：2019-03-12

申请号：US15500466

申请日：2015-06-26

申请人： LG ELECTRONICS INC.

发明人： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Dongguk Lim ,  Hangyu Cho

IPC分类号： H04W72/04 ,  H04L27/26 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/12 ,  H04L5/00 ,  H04W84/12 ,  H04B7/0452

摘要： Disclosed in the present invention are a multi-user (MU) transmission method in a wireless communication system and a device therefor. Specifically, the MU transmission method in a wireless communication system comprises a step in which a station (STA) receives, from an access point (AP), an allocation frame comprising resource allocation information for the MU transmission, wherein the allocation frame may comprise indication information for indicating whether the resource allocation information indicates a frequency resource for orthogonal frequency division multiple access (OFDMA) transmission, or indicates a spatial resource for MU multi-input multi-output (MIMO) transmission.

公开(公告)号：US10225124B2

公开(公告)日：2019-03-05

申请号：US15329532

申请日：2015-07-02

申请人： LG ELECTRONICS INC.

发明人： Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Dongguk Lim ,  Eunsung Park ,  Kiseon Ryu ,  Jinyoung Chun

IPC分类号： H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04L27/34 ,  H04W28/04 ,  H04W84/12 ,  H04W88/02

摘要： Disclosed is a method for a station (STA) device transmitting data in a Wireless Local Area Network (WLAN) system. The method for transmitting data, according to one embodiment of the present invention, comprises the steps of: FEC encoding transmission data; interleaving the transmission data; constellation mapping the transmission data; performing IDFT on the transmission data; and upconverting the transmission data and transmitting a transmission signal, wherein the transmission signal comprises a first part and a second part, and IDFT is performed using different FFT sizes for the first part and the second part.

公开(公告)号：US10225064B2

公开(公告)日：2019-03-05

申请号：US15518736

申请日：2015-11-19

申请人： LG ELECTRONICS INC.

发明人： Dongguk Lim ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho ,  Eunsung Park

IPC分类号： H04L5/00 ,  H04L27/26 ,  H04B7/0452 ,  H04L29/08 ,  H04W84/12

摘要： A method and apparatus for transmitting frames having a long training field (LTF) for a second type of station (STA) in a wireless communication system are provided. For this, STA prepares a frame having a first part for a first type of STA and a second part for the second type of STA; wherein the second part includes multiple LTFs, when the frame is used for MU (Multiple User) transmission scheme or OFDMA (Orthogonal Frequency Divisional Multiple Access) scheme. In case a first LTF having a first number of symbols length and a second LTF having a second number of symbols length, which is greater than the first number of symbols length, are used for the multiple LTFs, the first LTF is extended such that the first LTF and the second LTF have a same number of symbols length. The STA transmits the prepared frame to one or more STAs.

公开(公告)号：US10225061B2

公开(公告)日：2019-03-05

申请号：US15319477

申请日：2015-01-28

申请人： LG ELECTRONICS INC.

发明人： Suhwook Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Wookbong Lee ,  Jinsoo Choi ,  Hangyu Cho

IPC分类号： H04B7/26 ,  H04L1/18 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12 ,  H04W88/08

摘要： Disclosed are a method and an apparatus for receiving a frame. A method for receiving a frame in a wireless LAN comprises the steps of: an AP transmitting, to a plurality of STAs, a downlink PPDU including downlink data for each of the plurality of STAs, through a plurality of channels; and the AP receiving, from each of the plurality of STAs, a plurality of block ACK frames transmitted based on a block ACK transmission control field, wherein the downlink PPDU includes the block ACK transmission control field, and wherein each of the plurality of block ACK frames may include ACK information related to downlink data.

公开(公告)号：US10193673B2

公开(公告)日：2019-01-29

申请号：US15326026

申请日：2015-08-19

申请人： LG ELECTRONICS INC.

发明人： Kilbom Lee ,  Jiwon Kang ,  Jinsoo Choi ,  Wookbong Lee ,  Dongguk Lim ,  Hangyu Cho ,  Eunsung Park

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12

摘要： One embodiment of the present invention provides a transmitter and a pilot sequence transmission method comprising: generating an asymmetric sequence set comprising a plurality of pilot sequences which have been circular shifted by irregular intervals on a time axis; mapping, to the respective pilot sequences included in the asymmetric sequence set, additional information that is shown by using shared bits and non-shared bits; and selecting any one pilot sequence selected from the asymmetric sequence set and transmitting same to a receiver.

公开(公告)号：US10158516B2

公开(公告)日：2018-12-18

申请号：US15303202

申请日：2015-03-23

申请人： LG ELECTRONICS INC.

发明人： Jinsoo Choi ,  Jinyoung Chun ,  Wookbong Lee ,  Dongguk Lim ,  Hangyu Cho

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04W84/12

摘要： Provided are method for transmitting a data block in a wireless LAN and an apparatus using the same. A transmitter transmits a physical layer protocol data unit (PPDU) in a transmission bandwidth. The PPDU includes a first part to which a first fast Fourier transform (FFT) size is applied and a second part to which a second FFT size is applied. The second FFT size increases by integer times as the size of the transmission bandwidth increases.

公开(公告)号：US10135662B2

公开(公告)日：2018-11-20

申请号：US15524873

申请日：2015-11-30

申请人： LG ELECTRONICS INC.

发明人： Kilbom Lee ,  Hangyu Cho ,  Wookbong Lee ,  Jinsoo Choi ,  Jiwon Kang

IPC分类号： H04B1/16 ,  H04L27/26 ,  H04L27/38

摘要： Disclosed is a sequence generation method comprising: generating a basic sequence structure including C48 having 48 tones, X6 having six tones, and X5 having five tones; selecting any one of a plurality of phase rotation factors predetermined for a bandwidth; and generating a sequence to be inputted into a preamble to be transmitted to a terminal, by using the phase rotation factor, applied in basic sequence structural units, and the basic sequence structure.

公开(公告)号：US10098110B2

公开(公告)日：2018-10-09

申请号：US15513873

申请日：2015-10-05

申请人： LG ELECTRONICS INC.

发明人： Jinsoo Choi ,  Hangyu Cho ,  Wookbong Lee

IPC分类号： H04W72/04 ,  H04W72/12

摘要： Disclosed are a method and an apparatus for allocating wireless resources based on a single resource unit in a WLAN. The method for allocating the wireless resources based on a single resource unit in a WLAN may comprise the steps of: an AP scheduling, on a bandwidth, a plurality of wireless resources for communication with a plurality of STAs; and the AP transmitting a plurality of items of downlink data to each of the plurality of STAs through each of the plurality of wireless resources, wherein when resource allocation based on a virtual allocation resource unit is not supported, each of the plurality of wireless resources can include at least one first resource unit only or at least one second resource unit only, wherein the size of the first resource unit can be larger than the size of the second resource unit.

公开(公告)号：US10038535B2

公开(公告)日：2018-07-31

申请号：US15302922

申请日：2015-02-16

申请人： LG ELECTRONICS INC.

发明人： Jinyoung Chun ,  Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Suhwook Kim

IPC分类号： H04L5/00 ,  H04W84/12 ,  H04B7/0452 ,  H04B7/0417

CPC分类号： H04L5/005 ,  H04B7/0417 ,  H04B7/0452 ,  H04L5/001 ,  H04W84/12

摘要： A method and apparatus for transmitting a frame on the basis of a sounding procedure is disclosed. The method for transmitting the frame on the basis of a sounding procedure in a wireless LAN may comprise the steps of: transmitting an NDPA frame to each of multiple STAs by an AP wherein the NDPA frame notifies of the transmission of NDP; transmitting the NDP to each of the multiple STAs by the AP; receiving, by the AP, multiple feedback frames transmitted through multiple transmission sources allocated to the multiple STAs in time sources overlapped by the multiple STAs, respectively; and transmitting, by the AP, multiple downlink frames to the multiple STAs respectively.

公开(公告)号：US09967061B2

公开(公告)日：2018-05-08

申请号：US15125107

申请日：2014-11-06

申请人： LG ELECTRONICS INC.

发明人： Kiseon Ryu ,  Wookbong Lee ,  Jinsoo Choi ,  Jeongki Kim ,  Giwon Park ,  Hangyu Cho ,  Suhwook Kim

IPC分类号： H04W4/18 ,  H04J3/24 ,  G08C25/02 ,  H04L1/18 ,  H04L5/00 ,  H04L12/741 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

CPC分类号： H04L1/1809 ,  H04L1/0088 ,  H04L1/1614 ,  H04L1/18 ,  H04L1/1819 ,  H04L1/1896 ,  H04L5/0023 ,  H04L5/0055 ,  H04L45/74 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

摘要： Disclosed are a method and an apparatus for retransmission in a wireless LAN. The method for retransmission in a wireless LAN may comprise the steps in which: an STA receives an RTS frame from an AP; the STA transmits a CTS frame to the AP in response to the RTS frame; the STA receives an initial data frame from the AP after transmitting the CTS frame; if decoding on the initial data frame is impossible, the STA transmits a retransmission request frame to the AP; and the STA receives a retransmission data frame from the AP in response to the retransmission request frame.