公开(公告)号：US20180115947A1

公开(公告)日：2018-04-26

申请号：US15567432

申请日：2016-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04W52/02 ,  H04W76/28

Abstract: According to an embodiment of the present invention, a method in which a station (STA) operates in a power saving (PS) mode in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: receiving a trigger frame for allocating a resource for uplink multi-user (UL MU) PPDU transmission; and determining whether the STA shifts into a doze state, on the basis of the trigger frame, wherein the STA determines to shift into the doze state when the resource is not allocated to the STA through the trigger frame, and a time interval in which the STA operates in the doze sate may be determined on the basis of a PS mode field included in the trigger frame.

公开(公告)号：US20180115451A1

公开(公告)日：2018-04-26

申请号：US15840539

申请日：2017-12-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2633 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2666

Abstract: A method and a device for transmitting a data unit are disclosed. A method for transmitting a PPDU can comprise the steps of: generating, by an STA, the PPDU including a first portion and a second portion; and transmitting, by the STA, the PPDU, wherein the first portion is generated by performing IFFT according to a first FFT size, the second portion is generated by performing IFFT according to a second FFT size, and the first FFT size can differ from the second FFT size.

公开(公告)号：US20180098352A1

公开(公告)日：2018-04-05

申请号：US15567489

申请日：2016-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04W74/04

CPC classification number: H04W74/04 ,  H04L1/00 ,  H04L1/1685 ,  H04W12/06 ,  H04W74/08 ,  H04W84/12

Abstract: According to an embodiment of the present invention, a method for managing a network allocation vector (NAV) by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: receiving a frame including an HE-SIG A field and an MAC header; and updating an NAV on the basis of a transmission opportunity duration (TXOP) field included in the HE-SIG A field, wherein, in the step of updating the NAV, the STA may set, for the NAV of the STA, a TXOP duration value indicated by the TXOP duration field when the TXOP duration value indicated by the TXOP duration field is larger than a current NAV value configured by the STA, and the STA may reset the NAV of the STA without comparison with the current NAV value when the TXOP duration field indicates a predetermined value.

公开(公告)号：US20170373911A1

公开(公告)日：2017-12-28

申请号：US15524873

申请日：2015-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Hangyu CHO ,  Wookbong LEE ,  Jinsoo CHOI ,  Jiwon KANG

IPC: H04L27/26 ,  H04L27/38

CPC classification number: H04L27/2694 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/26 ,  H04L27/2613 ,  H04L27/2621 ,  H04L27/3872

Abstract: 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：US20170373908A1

公开(公告)日：2017-12-28

申请号：US15524785

申请日：2015-11-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04B7/0452 ,  H04B7/06 ,  H04W84/12

CPC classification number: H04L27/2675 ,  H04B7/0452 ,  H04B7/0697 ,  H04L5/0048 ,  H04L27/2613 ,  H04W84/12

Abstract: Disclosed are a method and a device for transmitting data based on different pilot tone patterns in a wireless LAN. The method for transmitting data based on the different pilot tone patterns in a wireless LAN may comprise the steps of: an AP transmitting, to a first STA, a first data field generated based on a first pilot tone pattern, from a first frequency bandwidth; and the AP transmitting, to a second STA, a second data field generated based on a second pilot tone pattern, from a second frequency bandwidth, wherein the size of the first frequency bandwidth is n times larger than the size of the second frequency bandwidth, the size of IFFT applied to the first data field and the size of IFFT applied to the second data field are identical, the first pilot tone pattern includes a plurality of first pilot tones, wherein the plurality of first pilot tones are respectively allocated to each of a plurality of first pilot tone indexes, the second pilot tone pattern includes a plurality of second pilot tones, wherein the plurality of second pilot tones are respectively allocated to each of a plurality of second pilot tone indexes, and wherein a portion of the first pilot tone indexes may be identical to the plurality of second pilot tone indexes.

公开(公告)号：US20170359158A1

公开(公告)日：2017-12-14

申请号：US15620551

申请日：2017-06-12

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0046 ,  H04L1/0001 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0053 ,  H04W72/048 ,  H04W84/12

Abstract: A method for transmitting data by a first station (STA) in a wireless local area network (WLAN) system is disclosed. The method includes configuring, as a radio frame for transmission of the data, a high efficiency extended range single user physical protocol data unit (HE ER SU PPDU) in which a high efficiency signal A (HE-SIG-A) field is repeated, and transmitting the configured HE ER SU PPDU to a second STA in a resource unit (RU) of one of a first type and a second type, the first type having a size of 106 tones and the second type having a size of 242 tones. If the HE ER SU PPDU is transmitted in an RU of the first type, the HE ER SU PPDU is transmitted in an RU of the first type at a fixed position in a primary 20-MHz channel.

公开(公告)号：US20170311292A1

公开(公告)日：2017-10-26

申请号：US15517813

申请日：2015-10-15

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04W72/04 ,  H04L1/00 ,  H04L27/26 ,  H04L5/00 ,  H04W84/12 ,  H04W88/08 ,  H04L1/06

CPC classification number: H04W72/04 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/003 ,  H04L1/0056 ,  H04L1/0643 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/2602 ,  H04W72/0453 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed are a method and a device for allocating wireless resources in bandwidths of different sizes in a wireless LAN. The method for allocating wireless resources in bandwidths of different sizes in a wireless LAN may comprise steps in which: an AP determines a first resource unit to be allocated to an STA in a first bandwidth; and the AP schedules the first resource unit for the STA, wherein the allocation starting position of the first resource unit allocated in the first bandwidth is configured the same as the allocation starting position of a second resource unit allocated in a second bandwidth, and the allocation starting position of a first guard tone adjacent to the first resource unit may be configured differently from the allocation starting position of a second guard tone adjacent to the second resource unit on the basis of tone shifting.

公开(公告)号：US20170310516A1

公开(公告)日：2017-10-26

申请号：US15516773

申请日：2015-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Kilbom LEE ,  Jinsoo CHOI ,  Wookbong LEE ,  Hangyu CHO ,  Jiwon KANG

IPC: H04L27/26 ,  H04W84/12

CPC classification number: H04L27/2608 ,  H04L27/2613 ,  H04L27/2621 ,  H04W84/12

Abstract: Disclosed is a sequence generation method for: generating a basic sequence structure comprising C52, which is composed of 52 tones, and D12, which is composed of 12 tones; selecting any one among a plurality of phase rotation factors, which are determined in advance for a bandwidth and applied to the basic sequence structure by unit of C52 or C52D12; and generating a sequence inserted into a preamble to be transmitted to a terminal.

公开(公告)号：US20170302343A1

公开(公告)日：2017-10-19

申请号：US15508344

申请日：2015-08-06

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Kilbom LEE ,  Wookbong LEE ,  Hangyu CHO ,  Jiwon KANG

IPC: H04B7/04 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04L5/0007 ,  H04L27/26 ,  H04L27/2628

Abstract: A method and device for transmitting a training field in a wireless LAN are disclosed. The method for transmitting a training field in a wireless LAN may include the steps of generating PPDUs to be respectively transmitted to a plurality of STAs by an AP, and respectively transmitting the PPDUs by the AP to the plurality of STAS respectively through a plurality of sub bands on an OFDMA-based overlapped time resource, wherein the PPDU may include the training field, the training field may be generated based on a training sequence, and the training sequence may be designed so that a non-null tone for AGC is included in a plurality of tone that corresponds to the plurality of sub bands, respectively.

公开(公告)号：US20170295566A1

公开(公告)日：2017-10-12

申请号：US15513873

申请日：2015-10-05

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04W72/04

CPC classification number: H04W72/044 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0048 ,  H04W72/04 ,  H04W72/0473 ,  H04W72/0493 ,  H04W72/1252

Abstract: 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.