公开(公告)号：US20180234269A1

公开(公告)日：2018-08-16

申请号：US15948193

申请日：2018-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04L25/03 ,  H04B7/0413 ,  H04W52/52 ,  H04W84/12

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：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：US20180131553A1

公开(公告)日：2018-05-10

申请号：US15563945

申请日：2016-04-04

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Wookbong LEE

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04B7/0452 ,  H04L1/0004 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/02 ,  H04L25/38 ,  H04L27/02 ,  H04W84/12

Abstract: The present specification presents a configuration technique of a field for control information in a wireless communication system. Specifically, presented is a configuration technique of a signal field including user-specific information in a wireless LAN system. A plurality of MCS techniques are applied to each field of a signal field, according to the present embodiment, and each field can be ordered according to the MCS techniques. The signal field according to the present embodiment can be used for a single user or multiple users, wherein the length of each field can be determined for blind decoding of the single user and the multiple users. The signal field according to the present embodiment can be an SIG-B field according to a wireless LAN standard.

公开(公告)号：US20180070344A1

公开(公告)日：2018-03-08

申请号：US15559781

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinsoo CHOI ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04B7/0452 ,  H04B7/26 ,  H04L1/00 ,  H04L1/0008 ,  H04L1/0059 ,  H04L1/246 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0082 ,  H04L5/0094 ,  H04L27/2602 ,  H04W72/042 ,  H04W84/12 ,  H04W88/08

Abstract: A method for transmitting a frame by an AP includes generating and transmitting a radio frame including a signaling field and a data field. The signaling field includes a SIG A field including first common control information for the plurality of STAs, and a SIG B field including specific control information for each of the plurality of STAs. The second signaling field includes a common field including second common control information for the plurality of STAs, and a specific field following the common field, including the specific control information for each of the plurality of STAs, and the specific field of the second signaling field transmitted in a specific 20-MHz band includes resource allocation information for one or more first-band STAs to which resources are allocated in the first band, and resource allocation information for one or more second-band STAs to which resources are allocated in another 20-MHz band.

公开(公告)号：US20170359812A1

公开(公告)日：2017-12-14

申请号：US15619342

申请日：2017-06-09

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Dongguk LIM ,  Hangyu CHO ,  Jinsoo CHOI

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04W84/12

Abstract: Proposed is a control field including allocation information regarding a resource unit (RU) in a wireless local area network (WLAN) system supporting a plurality of RUs. The control field including the allocation information regarding the RU may be included in an uplink or downlink a physical layer (PHY) protocol data unit (PPDU), and may be designed in consideration of a plurality of frequency bands. A control field corresponding to a specific frequency band may be duplicated in a different frequency band. Further, the control field corresponding to the specific frequency band may be used for scheduling of a data field corresponding to the same frequency band and a data field corresponding to the different frequency band.

公开(公告)号：US20170339701A1

公开(公告)日：2017-11-23

申请号：US15524555

申请日：2015-11-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE ,  Jeongki KIM

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0486 ,  H04L5/00 ,  H04L5/0007 ,  H04L5/0094 ,  H04W72/121 ,  H04W84/12

Abstract: Disclosed are a method and a device for allocating a resource unit on the basis of a container in a wireless LAN. The method for allocating a resource unit in a wireless LAN comprises the steps of: generating, by an AP, a PPDU to be transmitted to a plurality of STAs; and transmitting, by the AP, the PPDU to the plurality of STAs through at least one container allocated on the entire frequency band, wherein the PPDU includes MU/SU transmission indication information and resource allocation information for each container, the MU/SU transmission indication information includes information on whether an SU-based transmission or an MU-based transmission is carried out on the entire bandwidth, and the resource allocation information for each container can include information on the number of STAs allocated to each of the at least one container.

公开(公告)号：US20170338927A1

公开(公告)日：2017-11-23

申请号：US15523226

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0051 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/26 ,  H04W84/12

Abstract: A method for transmitting data from a station (STA) device in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: generating a physical protocol data unit (PPDU) including a physical preamble, which includes a legacy preamble and a high efficiency-long training field (HE-LTF), and a data field; and transmitting the PPDU, wherein the data field is transmitted at four times (4×) the inverse discrete Fourier transform (IDFT)/discrete Fourier transform (DFT) cycle of the legacy preamble, the HE-LTF is a 4×HE-LTF or a 2×HE-LTF which is respectively transmitted at the four times or two times (2×) the IDFT/DFT cycle of the legacy preamble, and wherein pilot tones of the HE-LTF may be inserted only into subcarriers having an even number of indexes from among subcarriers to which the 4×HE-LTF is mapped.

公开(公告)号：US20170310506A1

公开(公告)日：2017-10-26

申请号：US15516346

申请日：2016-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04L25/03 ,  H04L27/34 ,  H04L27/26 ,  H04W84/12 ,  H04L1/00

CPC classification number: H04L25/03 ,  H04L1/001 ,  H04L1/0031 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/262 ,  H04L27/2666 ,  H04L27/34 ,  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. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF that is suggested, for example, is used for a 40 MHz band or an 80 MHz band and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

公开(公告)号：US20170303280A1

公开(公告)日：2017-10-19

申请号：US15505521

申请日：2015-08-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L27/26 ,  H04W84/12

Abstract: Disclosed are an uplink transmission method in a wireless communication system and an apparatus therefor. In detail, the method for a uplink (UL) multi-user (MU) transmission by a station (STA) in a wireless communication system includes receiving a trigger frame including frequency resource allocation information in a subband unit for orthogonal frequency division multiple access (OFDMA) transmission from an access point (AP), and transmitting a UL MU PPDU based on the frequency resource allocation information, wherein the UL MU PPDU includes a high efficiency-short training field (HE-STF), a high-efficiency-long training field (HE-LTF), and a data field, and the HE-STF, the HE-LTF, and the data field are transmitted in a subband indicated by the frequency resource allocation information.

公开(公告)号：US20170303279A1

公开(公告)日：2017-10-19

申请号：US15490798

申请日：2017-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Dongguk LIM ,  Hangyu CHO ,  Jinsoo CHOI

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

CPC classification number: H04W72/0453 ,  H04W24/02 ,  H04W84/12

Abstract: 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.