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.

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：US20170311289A1

公开(公告)日：2017-10-26

申请号：US15491912

申请日：2017-04-19

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W72/04 ,  H04W72/12 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W74/0816 ,  H04L5/0044 ,  H04L5/0091 ,  H04W72/1268 ,  H04W84/12

Abstract: Improved uplink multi-user (UL MU) resource allocation is proposed. For the UL MU scheduling information of trigger frame, N (N>1) bits indicate allocated resource unit (RU) in unit of 26-tone RU, 52-tone RU, 106-tone RU, 242-tone RU, 484-tone RU and 996-tone RU in 80 MHz, and indicates the allocated RU in 80+80 MHz. The UL MU scheduling information of a multi-user request-to-send (MU-RTS) frame indicates an allocated channel corresponding to ‘242*M’-tone RU with a same bit pattern as the N bits of the first UL MU scheduling information, wherein ‘M’ is an integer greater than 0.

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.

公开(公告)号：US20170289994A1

公开(公告)日：2017-10-05

申请号：US15473528

申请日：2017-03-29

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0007 ,  H04W74/002 ,  H04W74/02 ,  H04W84/12

Abstract: According to an embodiment of the present specification, a method for transmitting an uplink frame in a wireless local area network (WLAN) system and performed by a user station (STA) includes: receiving from an access point (AP) a trigger frame comprising association identifier information for orthogonal frequency division multiple access (OFDMA)-based random access and allocation information indicating a resource unit, wherein the association identifier information indicates any one of a first value irrelevant to whether being associated with the AP, a second value for a first STA group associated with the AP, and a third value for a second STA group un-associated with the AP; and performing a countdown operation according to the association identifier information based on a backoff value which is set in a backoff counter of the user STA in order to transmit the uplink frame.

公开(公告)号：US20170289963A1

公开(公告)日：2017-10-05

申请号：US15510230

申请日：2015-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Wookbong LEE ,  Hangyu CHO

IPC: H04W72/04 ,  H04W72/12

CPC classification number: H04W72/04 ,  H04L5/0007 ,  H04W72/0453 ,  H04W72/12 ,  H04W84/12 ,  H04W88/08

Abstract: A method and a device for allocating resource units in a wireless LAN are disclosed. The method for allocating resource units in a wireless LAN can comprise the steps of: scheduling, by an AP, wireless resources for communicating with an STA on a bandwidth; and transmitting, by the AP, downlink data to the STA through the wireless resources, wherein the wireless resources are determined on the basis of a resource allocation combination according to the bandwidth size, and the resource allocation combination is a combination of at least one resource unit allocable on the whole available tone according to the bandwidth size, and the whole available tone can be a multiple of 242 tones according to the bandwidth size.

公开(公告)号：US20170289962A1

公开(公告)日：2017-10-05

申请号：US15508819

申请日：2015-09-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04B7/0452 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04B7/0452 ,  H04L5/0007 ,  H04W72/042 ,  H04W74/04 ,  H04W74/0808 ,  H04W84/12

Abstract: The present document is for flexibly resource allocation in a wireless LAN system. To this end, an STA prepares resource allocation information in which data is to be transmitted to a plurality of STAs by using an orthogonal frequency divisional multiple access (OFDMA) scheme or a multiple user MIMO (MU-MIMO) scheme, and transmits the data to the plurality of STAs according to the resource allocation information. The resource allocation information preferably includes a group ID indicating the plurality of STAs, a resource allocation bitmap having a format in common with the plurality of STAs, resource allocation information for each of the plurality of STAs and resource allocation sequence information indicating a resource allocation order of the STAs in the group.