Method and apparatus for dynamic channel sensing for direct link in a high efficiency wireless LAN

    公开(公告)号:US10178705B2

    公开(公告)日:2019-01-08

    申请号:US15051398

    申请日:2016-02-23

    Applicant: NEWRACOM, Inc.

    Inventor: Yongho Seok

    Abstract: Methods and apparatus for dynamic channel sensing for direct link in a High Efficiency WLAN (HEW) are provided. The methods include a method for dynamic channel sensing for a direct link by a first station (STA) in a wireless local area network. The method may include determining a first COLOR parameter of an access point to which the first STA is associated, exchanging with a second STA a COLOR parameter related to the direct link, the second STA being a peer STA of the first STA in the direct link, and determining a channel state based on a value of a COLOR field included in a received physical layer protocol data unit (PPDU) having a valid SIGNAL (SIG) field, the first COLOR parameter, and the COLOR parameter related to the direct link.

    Physical layer protocol data unit format in a high efficiency wireless LAN

    公开(公告)号:US09673943B2

    公开(公告)日:2017-06-06

    申请号:US14823420

    申请日:2015-08-11

    Applicant: NEWRACOM, INC.

    Inventor: Yongho Seok

    Abstract: The present invention relates to a new Physical layer Protocol Data unit (PPDU) format and a transmission and reception method and apparatus using the new PPDU format in a Wireless Local Area Network (WLAN). According to one aspect of the present invention, a method for transmitting a PPDU frame to a reception apparatus by a transmission apparatus in a WLAN may be provided. The method may include generating a legacy preamble, generating a High Efficiency (HE)-preamble, and transmitting a PPDU frame including a first region and a second region to the reception apparatus, the first region including the legacy preamble and a first field and the second region including the HE-preamble. The first field may have a variable length, and the HE-preamble may include a High Efficiency-Short Training Field (HE-STF) following the first field.

    Interleaver for physical layer protocol data unit in a high efficiency wireless LAN
    24.
    发明授权
    Interleaver for physical layer protocol data unit in a high efficiency wireless LAN 有权
    交换机用于物理层协议数据单元在高效无线局域网中

    公开(公告)号:US09532187B2

    公开(公告)日:2016-12-27

    申请号:US14823524

    申请日:2015-08-11

    Applicant: NEWRACOM, INC.

    Inventor: Yongho Seok

    Abstract: The present invention provides a method and apparatus for transmitting using an interleaver applied to a PPDU in a HE WLAN. In an aspect of the present invention, a method for transmitting data to a plurality of STAs through transmission channel by an AP in a WLAN system, wherein the transmission channel is divided into a plurality of subchannels which are allocated to the plurality of STAs respectively, the method may include interleaving a plurality of data units for the plurality of STAs based on characteristics of the plurality of subchannels allocated to the plurality of STAs to generate a plurality of interleaved data units; and transmitting, through the transmission channel, a Physical layer Protocol Data Unit (PPDU) frame including the plurality of interleaved data units respectively on the plurality of subchannels to the plurality of STAs.

    Abstract translation: 本发明提供一种使用应用于HE WLAN中的PPDU的交织器进行发送的方法和装置。 在本发明的一个方面,一种通过AP在WLAN系统中通过传输信道向多个STA发送数据的方法,其中传输信道被分成分配给多个STA的多个子信道, 所述方法可以包括基于分配给所述多个STA的所述多个子信道的特性来交织所述多个STA的多个数据单元,以生成多个交织数据单元; 以及通过所述传输信道,在所述多个子信道上分别将包括所述多个交织数据单元的物理层协议数据单元(PPDU)帧发送到所述多个STA。

    Apparatus and methods for TXOP duration field in PHY header

    公开(公告)号:US11006452B2

    公开(公告)日:2021-05-11

    申请号:US16284929

    申请日:2019-02-25

    Applicant: NEWRACOM, Inc.

    Abstract: A method implemented by a station (STA) in a Wireless Local Area Network (WLAN) to disregard a Network Allocation Vector (NAV) maintained by the STA. The method includes receiving a first Physical Layer Protocol Data Unit (PPDU) from an Access Point (AP), where the first PPDU elicits an immediate response from the STA, determining whether the NAV maintained by the STA was previously set using a duration indicated in a second PPDU that originated from a same Basic Service Set (BSS) as a BSS that the STA is associated with, and transmitting a third PPDU to the AP as an immediate response to the first PPDU without regard for the NAV maintained by the STA in response to a determination that the NAV maintained by the STA was previously set using the duration indicated in the second PPDU that originated from the BSS that the STA is associated with.

    Method and apparatus for processing PPDU based on BSS identification information in a high efficiency wireless LAN

    公开(公告)号:US10542526B2

    公开(公告)日:2020-01-21

    申请号:US15600586

    申请日:2017-05-19

    Applicant: NEWRACOM, INC.

    Inventor: Yongho Seok

    Abstract: Methods and apparatus for processing Physical layer Protocol Data Unit (PPDU) based on Basic Service Set (BSS) identification information in a High Efficiency WLAN (HEW) are described. An embodiment is a method for processing a PPDU by a station (STA) in a wireless local area network. The method may include determining whether the PPDU is transmitted from a different Basic Service Set (BSS) from a BSS to which the STA belongs or a same BSS as the BSS to which the STA belongs; and processing the PPDU using a first type of Clear Channel Assessment (CCA) threshold when the PPDU is determined to be transmitted from the different BSS, wherein the first type of CCA threshold is greater than a second type of CCA threshold which is used when the PPDU is determined to be transmitted from the same BSS.

    Physical layer protocol data unit format in a high efficiency wireless LAN

    公开(公告)号:US10541792B2

    公开(公告)日:2020-01-21

    申请号:US16380923

    申请日:2019-04-10

    Applicant: NEWRACOM, INC.

    Inventor: Yongho Seok

    Abstract: The present invention provides a new uplink (UL) Physical layer Protocol Data Unit (PPDU) frame format to support Multi-User Multiple Input Multiple Output (MU-MIMO) and Orthogonal Frequency Division Multiple Access (OFDMA), and methods, apparatuses, etc. therefor. In an aspect of the present invention, a method by a station (STA) for transmitting an UL PPDU frame to an Access Point (AP) simultaneously with one or more other STAs in a Wireless Local Area Network (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.

    Method and apparatus for transmitting response frame based on type in a high efficiency wireless LAN

    公开(公告)号:US10516519B2

    公开(公告)日:2019-12-24

    申请号:US15884137

    申请日:2018-01-30

    Applicant: NEWRACOM, INC.

    Inventor: Yongho Seok

    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.

    SOUNDING PROCEDURE INCLUDING UPLINK MULTIPLE-USER TRANSMISSION IN A HIGH EFFICIENCY WIRELESS LAN

    公开(公告)号:US20190037556A1

    公开(公告)日:2019-01-31

    申请号:US16138741

    申请日:2018-09-21

    Applicant: NEWRACOM, INC.

    Inventor: Yongho Seok

    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.

    Method and apparatus for frame exchange in a high efficiency wireless LAN

    公开(公告)号:US09967877B2

    公开(公告)日:2018-05-08

    申请号:US15045198

    申请日:2016-02-16

    Applicant: NEWRACOM, Inc.

    Inventor: Yongho Seok

    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.

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