公开(公告)号：US10250361B2

公开(公告)日：2019-04-02

申请号：US15325397

申请日：2015-06-10

申请人： LG ELECTRONICS INC.

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

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

摘要： Disclosed are a method and an apparatus for transmitting a data unit comprising guard intervals having different lengths. A method for transmitting a data unit in a wireless LAN comprises the steps of: a transmission STA generating a PPDU; and the transmission PPDU transmitting the PPDU to one or more reception STAs, wherein the PPDU sequentially comprises a first signal field, a second signal field, and a training field, wherein the first signal field is generated on the basis of a first IFFT size and is transmitted in a first OFDM symbol, the second signal field is generated on the basis of the first IFFT size and is transmitted in a second OFDM symbol, and the training field is generated on the basis of a second IFFT size and is transmitted in a third OFDM symbol.

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：US10212005B2

公开(公告)日：2019-02-19

申请号：US15948193

申请日：2018-04-09

申请人： LG ELECTRONICS INC.

发明人： Eunsung Park ,  Jinsoo Choi ,  Hangyu Cho

IPC分类号： H04L25/03 ,  H04L27/26 ,  H04L5/00 ,  H04B7/0413 ,  H04W52/52 ,  H04W84/12 ,  H04L25/02

摘要： 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：US10205570B2

公开(公告)日：2019-02-12

申请号：US15365828

申请日：2016-11-30

申请人： LG ELECTRONICS INC.

发明人： Eunsung Park ,  Jinsoo Choi ,  Hangyu Cho

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

摘要： Provided are a method and apparatus for transmitting a feedback frame in a WLAN system. More specifically, a transmission apparatus configures the pilot sequence of a first WLAN system using the pilot sequence of a second WLAN system. The transmission apparatus transmits the pilot sequence of the first WLAN system.

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：US10187893B2

公开(公告)日：2019-01-22

申请号：US15490798

申请日：2017-04-18

申请人： LG ELECTRONICS INC.

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

IPC分类号： H04W72/04 ,  H04W24/02 ,  H04W84/12

摘要： Provides are a method and apparatus for configuring an LTF sequence in a wireless LAN system. More specifically, a transmission apparatus generates an LTF sequence corresponding to a first frequency band. The transmission apparatus sends an LTF sequence corresponding to the first frequency band to a reception apparatus. In this case, an LTF sequence corresponding to the second 106-RU of a second frequency band is used as a sequence located in the second 106-RU of the second frequency band in the LTF sequence corresponding to the first frequency band. The transmission apparatus may apply a phase shift of 180° to the LTF sequence corresponding to the second 106-RU of the second frequency band.

公开(公告)号：US10187851B2

公开(公告)日：2019-01-22

申请号：US15315702

申请日：2015-02-26

申请人： LG ELECTRONICS INC.

发明人： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC分类号： H04W52/02 ,  H04W84/12

摘要： Disclosed are a method and a device for operation based on a power save mode in a WLAN. The method for operation based on a power save mode may comprise steps in which: an STA, which has been switched to an awake state, transmits a PS-poll frame to an AP on the basis of the transmission cycle of a beacon frame; the STA receives an ACK frame from the AP in response to the PS-poll frame; after receiving the ACK frame, the STA overhears a different BSS frame; and within a preset time upon overhearing the different BSS frame, the STA determines whether or not to maintain the awake state on the basis of whether or not a power management control frame has been transmitted from the AP.