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    COORDINATED MULTI-ACCESS POINT TRANSMISSIONS FOR WIRELESS LOCAL AREA NETWORK SYSTEMS
    1.
    发明公开
    COORDINATED MULTI-ACCESS POINT TRANSMISSIONS FOR WIRELESS LOCAL AREA NETWORK SYSTEMS 审中-公开

    公开(公告)号：US20230163808A1

    公开(公告)日：2023-05-25

    申请号：US17919868

    申请日：2021-04-28

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Hanqing LOU ,  Li Hsiang SUN ,  Xiaofei WANG ,  Rui YANG

    IPC: H04B7/024 ,  H04W52/14 ,  H04W52/24

    CPC classification number: H04B7/024 ,  H04W52/143 ,  H04W52/243

    Abstract: A method performed by a first wireless access point for coordinating a multi-access point transmission in a wireless network of multiple access points includes receiving an indication of a transmit opportunity for the first wireless access point, transmitting at least one indication frame to the multiple access points comprising information related to the transmit opportunity, receiving at least one request frame from one or more access points of the multiple access points indicating participation with the transmit opportunity, and transmitting a trigger frame to the one or more access points that indicated participation with the transmit opportunity, wherein the trigger frame comprises information indicating respective power levels for the participating access points. The shared transmit opportunity may then be used to transmit downlink data to associated stations of the first wireless access point and the other participating access points during the transmit opportunity.

    METHODS AND APPARATUSES FOR CHANNEL ACCESS AND RECOVERY WAKE-UP RADIOS
    4.
    发明申请
    METHODS AND APPARATUSES FOR CHANNEL ACCESS AND RECOVERY WAKE-UP RADIOS 有权

    公开(公告)号：US20220353821A1

    公开(公告)日：2022-11-03

    申请号：US17868047

    申请日：2022-07-19

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Xiaofei WANG ,  Li-Hsiang Sun ,  Hanqing Lou ,  Oghenekome Oteri ,  Joseph S. Levy ,  Rui Yang ,  Alphan Sahin

    IPC: H04W52/02

    Abstract: Methods and apparatuses are described herein for network discovery. A wireless transmit/receive unit (WTRU) may transmit, to a first access point (AP), via a Primary Connectivity Radio (PCR), a request indicating that on a condition that the WTRU is disassociated from the first AP, the WTRU will enter a wake-up radio (WUR) only discovery mode. The WTRU may receive, from the first AP, via the PCR, a management frame that has WUR discovery elements including an indication of at least one channel used by a second AP. The WTRU may perform disassociation from the first AP. The WTRU may activate a WUR and deactivate the PCR. On a condition that the WTRU is disassociated from the first AP, the WTRU may receive, from the second AP, via the WUR, a WUR frame over the at least one channel to enable the WTRU to activate the PCR to initiate association.

    METHOD AND SYSTEM FOR SOUNDING AND CHANNEL SELECTION
    8.
    发明申请
    METHOD AND SYSTEM FOR SOUNDING AND CHANNEL SELECTION 审中-公开

    公开(公告)号：US20170273112A1

    公开(公告)日：2017-09-21

    申请号：US15309969

    申请日：2015-05-08

    Applicant: InterDigital Patent Holdings, Inc.

    Inventor： Hanqing LOU ,  Xiaofei WANG ,  Oghenekome OTERI ,  Robert L. OLESEN

    IPC: H04W74/08 ,  H04W72/04 ,  H04W72/12

    CPC classification number: H04W74/0825 ,  H04W84/12

    Abstract: Methods and apparatus may be used for sounding for multi-user (MU) scheduling and for signaling and procedures for sub-channel selection. A wireless transmit/receive unit (WTRU) may receive information from an access point (AP) indicating a plurality of sub-channels to use for uplink data transmission as part of uplink MU wireless communications using a carrier sense multiple access (CSMA) wireless medium. The WTRU may transmit, using a plurality of sub-channels, a Physical Layer Convergence Protocol (PLCP) Protocol Data Unit (PPDU) including a preamble portion and a data portion, and, using at least a subset of the plurality of sub-channels, sounding signals to the AP for scheduling MU communications. The AP may receive sounding information from more WTRUs that the plurality of WTRUS associated with the scheduling information for the uplink data transmission during a time interval, in addition to receiving uplink data from the plurality of WTRUs.

    CLEAR CHANNEL ASSESSMENT (CCA) THRESHOLD ADAPTATION METHOD
    9.
    发明申请
    CLEAR CHANNEL ASSESSMENT (CCA) THRESHOLD ADAPTATION METHOD 有权
    清晰的渠道评估（CCA）阈值适应方法

    公开(公告)号：US20160227489A1

    公开(公告)日：2016-08-04

    申请号：US15021634

    申请日：2014-09-12

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Oghenekome OTERI ,  Pengfei XIA ,  Xiaofei WANG ,  Hanqing LOU ,  Monisha GHOSH ,  Robert L. OLESEN ,  Nirav B. SHAH ,  Frank LA SITA

    IPC: H04W52/24

    CPC classification number: H04W52/243 ,  H04W52/12 ,  H04W74/0808 ,  H04W84/12

    Abstract: Methods and apparatuses are described herein for adapting clear channel assessment (CCA) thresholds with or without Transmit Power Control (TPC) are disclosed. An IEEE 802.11 station (STA) may dynamically calculate a STA specific transmit power control (TPC) value and a STA specific clear channel assessment (CCA) value based on a target TPC parameter and a target CCA parameter. The target TPC parameter and the target CCA parameter may be received from an IEEE 802.11 cluster head configured to control TPC and CCA for a plurality of STAs associated with the BSS. The target TPC parameter and the target CCA parameter also may be related. The STA may then determine whether a carrier sense multiple access (CSMA) wireless medium of a wireless local area network (WLAN) basic service set (BSS) is occupied or idle based on the STA specific CCA value.

    Abstract translation: 本文描述了用于适配具有或不具有发射功率控制（TPC）的清晰信道评估（CCA）阈值的方法和装置。 IEEE 802.11站（STA）可以基于目标TPC参数和目标CCA参数动态地计算STA特定发射功率控制（TPC）值和STA特定清除信道评估（CCA）值。 目标TPC参数和目标CCA参数可以从配置成对与BSS相关联的多个STA控制TPC和CCA的IEEE 802.11簇头接收。 目标TPC参数和目标CCA参数也可能相关。 STA然后可以基于STA特定CCA值来确定无线局域网（WLAN）基本服务集（BSS）的载波侦听多路访问（CSMA）无线介质是占用还是空闲。

    METHODS FOR WIFI SECTORIZATION MAC ENHANCEMENT
    10.
    发明申请
    METHODS FOR WIFI SECTORIZATION MAC ENHANCEMENT 有权
    无线区域化MAC增强方法

    公开(公告)号：US20160066198A1

    公开(公告)日：2016-03-03

    申请号：US14888622

    申请日：2014-05-01

    Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

    Inventor： Xiaofei WANG ,  Guodong ZHANG

    IPC: H04W16/28 ,  H04W72/04 ,  H04B7/06

    CPC classification number: H04W16/28 ,  H04B7/0617 ,  H04W72/046 ,  H04W74/0816 ,  H04W84/12

    Abstract: A method and apparatus may be used for WiFi sectorization medium access control enhancement (WiSE MAC). An IEEE 802.11 STA may receive an omni-directional indication of a first sectorized transmission opportunity (TXOP) associated with a second STA. The omni-directional indication may include an identifier (ID) of a first sector associated with the first sectorized TXOP. The STA may transmit a directional indication of a second sectorized TXOP a condition that a second sector associated with the second sectorized TXOP does not interfere with the first sector associated with the first sectorized TXOP.

    Abstract translation: 一种方法和装置可以用于WiFi扇区化介质访问控制增强（WiSE MAC）。 IEEE 802.11 STA可以接收与第二STA相关联的第一扇区化传输机会（TXOP）的全向指示。 全向指示可以包括与第一扇区化TXOP相关联的第一扇区的标识符（ID）。 STA可以发送第二扇区化TXOP的方向性指示，该条件是与第二扇区化TXOP相关联的第二扇区不干扰与第一扇区化TXOP相关联的第一扇区。

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