公开(公告)号：US11064488B2

公开(公告)日：2021-07-13

申请号：US15884252

申请日：2018-01-30

Applicant: NEWRACOM, INC.

Inventor： Ahmad Reza Hedayat

IPC: H04W72/04 ,  H04W72/02 ,  H04W52/02 ,  H04W24/00 ,  H04W84/12

Abstract: A method for communication in a wireless local area network comprises receiving a frame at a first device, the frame being transmitted by a second device. The method further comprises determining, by the first device using the frame, a channel strength for each of a plurality of sub-bands associated with a bandwidth of the frame. A sub-band of the plurality of sub-bands is selected based on the channel strength determinations made using the frame. The first and second devices communicate using the selected sub-band.

公开(公告)号：US20210211178A1

公开(公告)日：2021-07-08

申请号：US17203568

申请日：2021-03-16

Applicant: NEWRACOM, INC.

Inventor： Sungho MOON ,  Young Hoon KWON ,  Daewon LEE

IPC: H04B7/06

Abstract: In wireless communications, an access point may transmit a first frame to one or more stations. In response to the first frame, the station(s) may transmit a respective second frame to the access point. The access point may generate a beamforming report based on the second frame(s) received by the access point from the station(s). The access point may transmit a third frame(s) that includes the beamforming report to the station(s). The station(s) may generate a respective beamforming matrix based at least on the third frame(s). Other methods, apparatus, and computer-readable media are also disclosed.

公开(公告)号：US11019662B2

公开(公告)日：2021-05-25

申请号：US16404591

申请日：2019-05-06

Applicant: NEWRACOM, INC.

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

IPC: H04W4/00 ,  H04W74/08 ,  H04W8/26 ,  H04W84/12

Abstract: A wireless device determines a Basic Service Set (BSS) associated with a wireless transmitter by receiving a first frame, determining an address of the first frame, receiving a second frame, and determining, using the address of the first frame, a property of the second frame. Determining the property of the second frame may include determining whether the second frame is intra-BSS frame or an inter-BSS frame. Determining the property of the second frame may be performed by comparing an address of the second frame with the address of the first frame, and the second frame determined to be an intra-BSS frame when the address of the first frame matches the address of the second frame, and determined to be an inter-BSS frame otherwise. The address of the first frame may be a transmitter address (TA).

公开(公告)号：US20210099256A1

公开(公告)日：2021-04-01

申请号：US17033365

申请日：2020-09-25

Applicant: NEWRACOM, Inc.

Inventor： Joonsoo LEE ,  Yong Jin KWON ,  Hyun Sik JUNG ,  Junyoun WON ,  Hyungu PARK

IPC: H04L1/18 ,  H04L1/00 ,  H04L1/16

Abstract: A method performed by a first wireless station is described. The method includes determining, by a Media Access Control (MAC) layer of the first wireless station, a plurality of MAC Protocol Data Units (MPDUs) to transmit to a second wireless station in an aggregated MPDU, wherein a physical layer of the first station is to use a plurality of codewords to represent the plurality of MPDUs, wherein a first MPDU in the plurality of MPDUs is to be represented by a first set of codewords and a second MPDU is to be represented by a second set of codewords from the plurality of codewords; appending padding to the first MPDU such that the first set of codewords does not share a codeword with the second set of codewords; and transmitting the first set of codewords and the second set of codewords to the second wireless station.

公开(公告)号：US10959121B1

公开(公告)日：2021-03-23

申请号：US15844388

申请日：2017-12-15

Applicant: NEWRACOM, INC.

Inventor： Yujin Noh ,  Young Hoon Kwon

IPC: H04W28/02 ,  H04W72/04 ,  H04W8/22 ,  H04L1/06 ,  H04W74/08

Abstract: A wireless devices communicates a transmission capability by determining a number of active transmits chains of the wireless device, determining a maximum number of space-time streams according to the number of active transmit chains, providing a frame with an indication of the maximum number of space-time streams, and transmitting the frame. The wireless devices may provide the indication of the maximum number of space-time streams in an Operating Mode field of High Efficiency Aggregate Control field of the frame. The maximum number of space-time streams may be a maximum number of space-time streams that may be used by the wireless device to respond to a Trigger frame.

公开(公告)号：US10944593B2

公开(公告)日：2021-03-09

申请号：US16440635

申请日：2019-06-13

Applicant: NEWRACOM, INC.

Inventor： Heejung Yu ,  Minho Cheong ,  Hyoung Jin Kwon

IPC: H04L25/02 ,  H04L25/03 ,  H04B7/0452 ,  H04B7/04 ,  H04W84/12 ,  H04W74/00

Abstract: A method of transmitting a frame is provided by a device in a WLAN. The device sets as additional data subcarriers some of subcarriers which are not set as data subcarriers in at least part of fields included in a frame of a legacy frame format, and allocates information to the additional data subcarriers.

公开(公告)号：US20200322091A1

公开(公告)日：2020-10-08

申请号：US16838852

申请日：2020-04-02

Applicant: NEWRACOM, Inc.

Inventor： Yujin NOH ,  Jaeyoung RYU ,  Dae Kyun LEE ,  Jong-ee OH ,  Minseoung KIM

IPC: H04L1/00 ,  H04W72/04 ,  H04L27/26 ,  H04L5/00

Abstract: A method for encoding a bitstream for a frame in a wireless transmission is described. The method includes receiving, by an error correction unit of the wireless device, the bitstream; performing, by the error correction unit, forward error correction on the bitstream to generate an error corrected bitstream; determining, by a dual sub-carrier modulation (DCM) mapper of the first wireless device, a number of data subcarriers for modulating the error corrected bitstream to subcarriers in each half of an orthogonal frequency-division multiplexing (OFDM) symbol, wherein the number of data subcarriers is determined to be (1) 26 for a first bandwidth of the frame, (2) 54 for a second bandwidth and performing, by the DCM mapper, DCM on the error corrected bitstream based on the determined number of data subcarriers to generate a stream of complex numbers corresponding to the number of data subcarriers.

公开(公告)号：US20200280351A1

公开(公告)日：2020-09-03

申请号：US16875752

申请日：2020-05-15

Applicant: Newracom, Inc.

Inventor： Hyoungjin KWON ,  Jeehoon KIM ,  Minho CHEONG

IPC: H04B7/0452 ,  H04L5/00 ,  H04W72/12

Abstract: An operation method of a station in a wireless local area network (WLAN) is disclosed. An operation method of a first station comprises generating a high efficiency (HE) preamble including scheduling information of a plurality of reception stations; and generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including a legacy preamble, the HE preamble, and a payload having data units to be transmitted to the plurality of reception stations. Therefore, a performance of WLAN may be enhanced.

公开(公告)号：US10721642B2

公开(公告)日：2020-07-21

申请号：US16162896

申请日：2018-10-17

Applicant: NEWRACOM, Inc.

Inventor： Young Hoon Kwon

IPC: H04W24/08 ,  H04L12/26 ,  H04W74/08 ,  H04W84/12

Abstract: The embodiments provide a method implemented by a network device in a wireless local area network (WLAN) to provide a deferred clear channel assessment (CCA) from a physical layer to an upper layer within the network device. The deferred CCA enables the upper layer to make a final decision on the state of a wireless medium. The method identifies at least one condition on a wireless medium where an upper layer decision is required to determine a state of the wireless medium, and passes on requisite data to the upper layer to enable a decision on the state of the wireless medium. The deferred CCA process supports more complex CCA processes that may rely on information available in an upper layer.

公开(公告)号：US10693532B2

公开(公告)日：2020-06-23

申请号：US14843956

申请日：2015-09-02

Applicant: NEWRACOM, INC.

Inventor： Hyoungjin Kwon ,  Jeehoon Kim ,  Minho Cheong

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04 ,  H04B7/04 ,  H04B7/0452 ,  H04B7/0413

Abstract: An operation method of a station in a wireless local area network (WLAN) is disclosed. An operation method of a first station comprises generating a high efficiency (HE) preamble including scheduling information of a plurality of reception stations; and generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including a legacy preamble, the HE preamble, and a payload having data units to be transmitted to the plurality of reception stations. Therefore, a performance of WLAN may be enhanced.