公开(公告)号：US20180175990A1

公开(公告)日：2018-06-21

申请号：US15884137

申请日：2018-01-30

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04L5/00 ,  H04L1/00 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04L5/0055 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0075 ,  H04L1/0079 ,  H04L1/0618 ,  H04L1/1671 ,  H04L1/1685 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/008 ,  H04L5/0091 ,  H04L2001/0093 ,  H04W72/042 ,  H04W84/12

Abstract: The present disclosure relates to a method and apparatus for transmitting a response frame based on a type in a High Efficiency Wireless Local Area Network (WLAN) (HEW). According to an aspect, a method for transmitting an uplink frame by a station (STA) to an access point (AP) in a WLAN may be provided. The method may include receiving, from the AP, a downlink frame including information related to a type of the uplink frame, the type of the uplink frame including a single-user (SU) type and a multiple-user (MU) type; and transmitting, to the AP, the uplink frame having a type determined based on the information related to the type of the uplink frame, wherein, when the type of the uplink frame corresponds to the MU type, the uplink frame is simultaneously transmitted by a plurality of STAs including the STA and at least one other STA.

公开(公告)号：US09936488B2

公开(公告)日：2018-04-03

申请号：US14944180

申请日：2015-11-17

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04W72/04 ,  H04L1/00 ,  H04W84/12 ,  H04L1/06

CPC classification number: H04W72/0413 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0625 ,  H04W72/046 ,  H04W84/12

Abstract: The present disclosure relates to a sounding procedure including uplink multi-user transmission in a High Efficiency WLAN (HEW). According to one aspect of the present disclosure, a method for transmitting a response frame by a responding Station (STA) to a transmitting STA in a wireless local area network may be provided. The method may include receiving, from the transmitting STA, a trigger frame including information related to a Modulation and Coding Scheme (MCS) for the response frame, and transmitting, to the transmitting STA, the response frame according to an MCS determined based on the information related to the MCS for the response frame included in the trigger frame. When a type of the response frame corresponds to a Multiple-User (MU) type, a same MCS may be applied to the response frame by a plurality of STAs including the STA and at least one other STA.

公开(公告)号：US09832058B2

公开(公告)日：2017-11-28

申请号：US15340939

申请日：2016-11-01

Applicant: NEWRACOM, INC.

Inventor： Dae Won Lee ,  Yujin Noh ,  Young Hoon Kwon ,  Yongho Seok ,  Sungho Moon

IPC: H04L27/26 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04L27/2621 ,  H04L1/0071 ,  H04L1/0072 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/2649 ,  H04W84/12

Abstract: In wireless communications, a high-efficiency (HE) physical layer protocol data unit (PPDU) includes an HE signal-B (SIG-B) field. In order to prevent undesirably large peak-to-average power ratio (PAPR) transmissions caused by repeated information in the HE SIG-B field, the HE SIG-B field may be scrambled. Scrambling of the HE SIG-B field may include scrambling of modulated data tones of each of one or more HE SIG-B field channels of the HE SIG-B field. This scrambling may include applying a phase rotation to the modulated data tones within each of the one or more HE SIG-B field channels. This scrambling (or phase rotation) is performed in addition to a phase rotation applied to each entire HE SIG-B field channel that is commonly referred to as a gamma rotation.

公开(公告)号：US09762487B2

公开(公告)日：2017-09-12

申请号：US15170044

申请日：2016-06-01

Applicant: NEWRACOM, Inc.

Inventor： Yongho Seok

IPC: H04H20/71 ,  H04L12/741 ,  H04L1/16 ,  H04W88/08

CPC classification number: H04L45/74 ,  H04L1/16 ,  H04L1/1685 ,  H04W88/08

Abstract: A method implemented by a station (STA) in a Wireless Local Area Network (WLAN) to acknowledge a downlink (DL) multi-user (MU) physical layer (PHY) Protocol Data Unit (PPDU) transmitted by an access point (AP). The method includes receiving the DL MU PPDU, decoding a frame from the DL MU PPDU, where the frame includes an indication requesting the STA to provide a trigger-based immediate acknowledgement, determining whether trigger information for an uplink (UL) MU transmission has been obtained from the DL MU PPDU, responsive to a determination that the trigger information has been obtained from the DL MU PPDU, transmitting a trigger-based immediate acknowledgement frame to the AP during the UL MU transmission, according to the trigger information, and responsive to a determination that the trigger information has not been obtained from the DL MU PPDU, refraining from transmitting the trigger-based immediate acknowledgement frame to the AP.

公开(公告)号：US09742544B2

公开(公告)日：2017-08-22

申请号：US14822601

申请日：2015-08-10

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04L5/00 ,  H04W74/08 ,  H04L1/00 ,  H04W84/12

CPC classification number: H04L5/0055 ,  H04L1/0001 ,  H04L1/0033 ,  H04L1/0036 ,  H04L1/0618 ,  H04L1/0625 ,  H04L1/1854 ,  H04L5/0007 ,  H04W74/0816 ,  H04W84/12

Abstract: The present invention relates to a transmission and receiving method and apparatus using a dynamically determined Inter-Frame Space (IFS) in a Wireless Local Area Network (WLAN). According to one aspect of the present invention, a method for processing a received frame by a Station (STA) in a WLAN may include receiving a first frame including downlink data for a plurality of STAs, if the received first frame has no error, transmitting a second frame including an ACKnowledgement (ACK) of the STA simultaneously with ACKs of one or more other STAs, and if the received first frame has an error, performing carrier sensing using a variably determined IFS.

公开(公告)号：US10749647B2

公开(公告)日：2020-08-18

申请号：US16232718

申请日：2018-12-26

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04L5/00 ,  H04B7/06 ,  H04W16/28 ,  H04W84/12 ,  H04B7/0452 ,  H04W74/08

Abstract: The present disclosure relates to a method and apparatus for beamformed transmission in a wireless local area network. According to one aspect of the present disclosure, a method for transmitting a Physical layer Protocol Data Unit (PPDU) frame to a plurality of stations (STAs) by an Access Point (AP) in a wireless local area network may be provided. The method may include transmitting a SIGNAL field of the PPDU frame, the SIGNAL field including beamforming information indicating whether beamforming is applied to respective data units of the PPDU frame, and transmitting the data units of the PPDU frame, the data units being individually beamformed or not beamformed according to the beamforming information.

公开(公告)号：US10743309B2

公开(公告)日：2020-08-11

申请号：US15944663

申请日：2018-04-03

Applicant: NEWRACOM, Inc.

Inventor： Yongho Seok

IPC: H04W72/04 ,  H04L29/06 ,  H04L29/08 ,  H04W84/12

Abstract: A frame exchange in a High Efficiency WLAN (HEW) includes a method for exchanging frames implemented by an access point in a wireless local area network. The method further includes transmitting to one or more stations (STAs) a first frame eliciting a second frame from the one or more STAs in a downlink (DL) Physical layer Protocol Data Unit (PPDU), wherein the DL PPDU carrying the first frame includes information indicating a type of a PPDU carrying the second frame from PPDU types including a Single User (SU) PPDU and a Multiple User (MU) PPDU; and receiving from the one or more STAs the second frame in an uplink (UL) PPDU having a type determined based on the information indicating the type of the PPDU.

公开(公告)号：US10320537B2

公开(公告)日：2019-06-11

申请号：US15811663

申请日：2017-11-13

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08 ,  H04B7/0452

Abstract: The present invention provides a new downlink frame format to support MU-MIMO and OFDMA, and methods, apparatuses, etc. therefor. In an aspect of the present invention, a method for transmitting data to a plurality of STAs by an AP in a WLAN may include generating a HE-LTF field for the plurality of STAs, and transmitting a PPDU frame to the plurality of STAs, the PPDU frame including the HE-LTF field and data for the plurality of STAs. The data for the plurality of STAs may be transmitted to different STA on each of a plurality of subchannels, and a starting point of the HE-LTF field may be same across the plurality of STAs and an end point of the HE-LTF field may be same across the plurality of STAs.

公开(公告)号：US10257857B2

公开(公告)日：2019-04-09

申请号：US15278597

申请日：2016-09-28

Applicant: NEWRACOM, Inc.

Inventor： Yujin Noh ,  Yongho Seok

IPC: H04B7/06 ,  H04L5/00 ,  H04L27/00 ,  H04L27/26 ,  H04L29/06 ,  H04W48/20 ,  H04W72/04 ,  H04W74/08 ,  H04W84/12

Abstract: A method is implemented by a station (STA) in a Wireless Local Area Network (WLAN) to update a Network Allocation Vector (NAV) maintained by the STA. The method includes receiving a first Physical Layer Protocol Data Unit (PPDU), determining whether a duration indicated in a control field of a preamble portion of the first PPDU is greater than a current NAV value, determining whether the first PPDU is received as an immediate response to a second PPDU previously transmitted by the STA, and updating the NAV maintained by the STA using the duration in response to a determination that the duration is greater than the current NAV value and the first PPDU is not received as an immediate response to the second PPDU previously transmitted by the STA.

公开(公告)号：US10200165B2

公开(公告)日：2019-02-05

申请号：US14875665

申请日：2015-10-05

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04L5/00 ,  H04B7/06 ,  H04W16/28 ,  H04W84/12 ,  H04W74/08 ,  H04B7/0452

Abstract: The present invention relates to a method and apparatus for beamformed transmission in a wireless local area network. According to one aspect of the present invention, a method for transmitting a Physical layer Protocol Data Unit (PPDU) frame to a plurality of stations (STAs) by an Access Point (AP) in a wireless local area network may be provided. The method may include transmitting a SIGNAL field of the PPDU frame, the SIGNAL field including beamforming information indicating whether beamforming is applied to respective data units of the PPDU frame, and transmitting the data units of the PPDU frame, the data units being individually beamformed or not beamformed according to the beamforming information.