公开(公告)号：US09949290B2

公开(公告)日：2018-04-17

申请号：US14884676

申请日：2015-10-15

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04W74/00 ,  H04B7/06 ,  H04B7/04 ,  H04B7/0452 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04B7/0452 ,  H04B7/0697 ,  H04W74/006 ,  H04W74/0816 ,  H04W84/12

Abstract: The present disclosure relates to a method and apparatus for determining a bandwidth for Multi-User (MU) transmission in a High Efficiency WLAN (HEW). According to one aspect of the present disclosure, a method for transmitting by a Station (STA) to an Access point (AP) an uplink Physical layer Protocol Data Unit (PPDU) frame in a WLAN may be provided. The method may include receiving a trigger frame including bandwidth information, the trigger frame eliciting a transmission of the uplink PPDU frame including a data unit of the STA and at least one data unit of at least one other STA, and transmitting the data unit of the STA in the uplink PPDU frame, based on an available bandwidth of the STA and a bandwidth indicated by the bandwidth information included in the trigger frame.

公开(公告)号：US09819460B2

公开(公告)日：2017-11-14

申请号：US14790878

申请日：2015-07-02

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

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

CPC classification number: H04L5/003 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0048 ,  H04L27/2601 ,  H04L27/2602 ,  H04W72/0413 ,  H04W72/0446 ,  H04W84/12 ,  H04W88/08

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：US10448378B2

公开(公告)日：2019-10-15

申请号：US16138741

申请日：2018-09-21

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

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

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：US10397110B2

公开(公告)日：2019-08-27

申请号：US15666843

申请日：2017-08-02

Applicant: NEWRACOM, Inc.

Inventor： Yongho Seok

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

Abstract: A network device is to function as a station (STA) in a Wireless Local Area Network (WLAN) that acknowledges a downlink (DL) multi-user (MU) physical layer (PHY) Protocol Data Unit (PPDU) transmitted by an access point (AP). The network device includes one or more processors that are configured to cause the network device functioning as the STA to perform operations including decoding a frame from the DL MU PPDU, determining whether an ACK Policy field of the frame is set to a binary value of ‘01’, determining whether trigger information for an uplink (UL) MU transmission has been obtained from the DL MU PPDU, and responsive to a determination that the ACK Policy filed of the frame is set to the binary value of ‘01’ and the trigger information has been obtained from the DL MU PPDU, transmitting a trigger-based immediate acknowledgement frame to the AP.

公开(公告)号：US10368269B2

公开(公告)日：2019-07-30

申请号：US15914954

申请日：2018-03-07

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04W74/08 ,  H04B7/06 ,  H04W28/20 ,  H04W74/00 ,  H04B7/0452 ,  H04W84/12

Abstract: The present disclosure relates to a method and apparatus for determining a bandwidth for Multi-User (MU) transmission in a High Efficiency WLAN (HEW). According to one aspect of the present disclosure, a method for transmitting by a Station (STA) to an Access point (AP) an uplink Physical layer Protocol Data Unit (PPDU) frame in a WLAN may be provided. The method may include receiving a trigger frame including bandwidth information, the trigger frame eliciting a transmission of the uplink PPDU frame including a data unit of the STA and at least one data unit of at least one other STA, and transmitting the data unit of the STA in the uplink PPDU frame, based on an available bandwidth of the STA and a bandwidth indicated by the bandwidth information included in the trigger frame.

公开(公告)号：US10327246B2

公开(公告)日：2019-06-18

申请号：US15880307

申请日：2018-01-25

Applicant: NEWRACOM, Inc.

Inventor： Yongho Seok

IPC: H04W72/04 ,  H04L29/06 ,  H04W74/08 ,  H04L27/26 ,  H04B7/0452 ,  H04L1/00 ,  H04L5/00

Abstract: Methods and apparatus for a wideband Physical layer Protocol Data Unit (PPDU) transmission in a High Efficiency WLAN (HEW) include a method for transmitting a Physical layer Protocol Data Unit (PPDU) in a wireless local area network. The method may further include performing a stream parsing of data bit streams to output blocks, determining whether to perform a segment parsing of the blocks based on a predetermined condition to output frequency subblocks, performing a constellation mapping of the blocks or the frequency subblocks, and transmitting the PPDU.

公开(公告)号：US10327226B2

公开(公告)日：2019-06-18

申请号：US14965701

申请日：2015-12-10

Applicant: NEWRACOM, Inc.

Inventor： Yongho Seok

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

Abstract: Methods and apparatus for resource allocation for multiple user transmission in a High Efficiency WLAN (HEW) are described. An embodiment is a method for transmitting a Physical layer Protocol Data Unit (PPDU) by an access point (AP) to a plurality of stations (STAs). The method may include transmitting, to the plurality of STAs, a preamble including a High-Efficiency SIGNAL (HE-SIG) field, an HE-Short Training Field (HE-STF) field and an HE-Long Training Field (HE-LTF) field in the PPDU on a transmission channel; and transmitting, on the transmission channel, a data field including a group addressed frame transmitted in a first subchannel among a plurality of subchannels into which the transmission channel is divided.

公开(公告)号：US10305647B2

公开(公告)日：2019-05-28

申请号：US14790892

申请日：2015-07-02

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

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

Abstract: The present invention provides a new uplink PPDU frame format to support MU-MIMO and OFDMA, and methods, apparatuses, etc. therefor. In an aspect of the present invention, a method by a STA for transmitting an UL PPDU frame to an AP simultaneously with one or more other STAs in a WLAN may include receiving a frame including a parameter for the PPDU frame from the AP; and participating in UL MU PPDU frame transmission based on the parameter.

公开(公告)号：US10153820B2

公开(公告)日：2018-12-11

申请号：US15360887

申请日：2016-11-23

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04W4/00 ,  H04B7/06 ,  H04B7/0452 ,  H04W74/04 ,  H04W84/12 ,  H04W72/12

Abstract: In wireless communications for multi-users, a station may receive a trigger frame including a transmitter address field. When the trigger frame is a multi-user request-to-send (MU-RTS) frame eliciting clear-to-send (CTS) frames from a plurality of stations, the station transmit a CTS frame including a first receiver address field in response to the trigger frame. The first receiver address field may be set equal to the transmitter address field. When the trigger frame elicits data frames from a plurality of stations, the station transmit a data frame including a second receiver address field in response to the trigger frame. The second receiver address field may be set to a destination address. Other methods, apparatus, and computer-readable media are also disclosed.

公开(公告)号：US09985739B2

公开(公告)日：2018-05-29

申请号：US14828356

申请日：2015-08-17

Applicant: NEWRACOM, INC.

Inventor： Yongho Seok

IPC: H04L1/00 ,  H04L1/16 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  H04B7/0452 ,  H04W72/12 ,  H04B7/06

CPC classification number: H04L1/0003 ,  H04B7/0452 ,  H04B7/0669 ,  H04L1/0015 ,  H04L1/0031 ,  H04L1/1614 ,  H04L1/1671 ,  H04W72/1289 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

Abstract: The present invention relates to a method and apparatus for determining a transmission rate in a Wireless Local Area Network (WLAN). According to one aspect of the present invention, a method for receiving an uplink frame from a Station (STA) by an Access Point (AP) in a WLAN may be provided. The method may include transmitting to the STA a downlink frame eliciting the uplink frame, and receiving the uplink frame from the STA at a rate determined based on whether the type of the uplink frame is a single user type or a multi-user type.