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    MIRRORED SPLIT PASSIVE SCANNING
    41.
    发明公开
    MIRRORED SPLIT PASSIVE SCANNING 审中-公开

    公开(公告)号：US20230319691A1

    公开(公告)日：2023-10-05

    申请号：US18043006

    申请日：2021-02-23

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip HOMCHAUDHURI ,  Alireza RAISSINIA ,  Javier DEL PRADO PAVON ,  Shuibing DAI ,  Zhao LI ,  Vikram PHOGAT ,  Prasanna BASARALU SUBRAMANYA

    IPC: H04W48/16 ,  H04W48/12

    CPC classification number: H04W48/16 ,  H04W48/12

    Abstract: This disclosure provides methods, devices, and systems for performing passive scanning operations on one or more wireless channels. In some implementations, a wireless communication device configures an off-channel scan time and a passive scanning period for passive scanning operations based on latency requirements of a low-latency application, and selects a home channel dwell time for the passive scanning operations. The wireless communication device may perform the passive scanning operation by alternating between listening for beacon frames on one or more second wireless channels for the configured off-channel scan time and dwelling on a home channel for the selected home channel dwell time during a first portion of the configured scanning period. The wireless communication device also may listen for beacon frames on the one or more second wireless channels during a second portion of the configured scanning period that is defined by the selected home channel dwell time.

    SECURE LONG TRAINING FIELD (LTF) TRANSMIT WINDOW SIGNALING
    42.
    发明申请
    SECURE LONG TRAINING FIELD (LTF) TRANSMIT WINDOW SIGNALING 有权

    公开(公告)号：US20220224579A1

    公开(公告)日：2022-07-14

    申请号：US17145641

    申请日：2021-01-11

    Applicant: QUALCOMM Incorporated

    Inventor： Alireza RAISSINIA ,  Bin TIAN ,  Stephen Jay SHELLHAMMER ,  Youhan KIM

    IPC: H04L27/26 ,  H04L29/08 ,  H04W84/12

    Abstract: This disclosure provides methods, devices and systems for improving the security of secure long training field (LTF) transmissions. In some implementations, a transmitting device may perform windowing on a secure LTF, in the frequency domain, so that the resulting time-domain LTF signal is difficult, if not impossible, to predict by any device that observes a portion of the LTF signal. In some aspects, the transmitting device may negotiate the windowing of secure LTFs with a receiving device based on fine timing measurement (FTM) negotiation frames exchanged at the start of an FTM procedure. In some other aspects, the transmitting device may dynamically or adaptively perform windowing on secure LTFs. In such aspects, the transmitting device may indicate whether windowing is performed on a secure LTF based on information carried in a signal field of a physical layer convergence protocol (PLCP) protocol data unit (PPDU) that includes the secure LTF.

    EFFICIENCY AND COEXISTENCE OF WIRELESS DEVICES
    48.
    发明申请
    EFFICIENCY AND COEXISTENCE OF WIRELESS DEVICES 审中-公开
    无线设备的有效性和共同性

    公开(公告)号：US20170078967A1

    公开(公告)日：2017-03-16

    申请号：US15259909

    申请日：2016-09-08

    Applicant: QUALCOMM Incorporated

    Inventor： Alfred ASTERJADHI ,  Sandip HOM CHAUDHURI ,  Zhanfeng JIA ,  George CHERIAN ,  Simone MERLIN ,  Alireza RAISSINIA ,  Gwendolyn Denise BARRIAC ,  James Simon CHO ,  Yan ZHOU ,  Deepak Jindal KUMAR

    IPC: H04W52/02 ,  H04W8/00 ,  H04L12/26 ,  H04W74/06

    CPC classification number: H04W52/0229 ,  H04L43/103 ,  H04W8/005 ,  H04W74/06 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164 ,  Y02D70/22

    Abstract: Certain aspects of the present disclosure provide methods and apparatus for polling for data by a wireless device. Certain aspects of the present disclosure providing a method performed by the wireless device. The method generally includes receiving a polling frame from at least one wireless device. The polling frame can include an indication of a service period during which the access point may deliver multiple protocol data units (PDUs) to the wireless device in response to the polling frame. The indication of the service period is provided as a value relative to a local clock synchronized between the wireless device and the access point. The method generally also includes transmitting the multiple PDUs to the wireless device during the service period, in response to the polling frame. The access point can receive the polling frame and transmit the multiple PDUs during the service period, in response to the polling frame.

    Abstract translation: 本公开的某些方面提供了用于通过无线设备轮询数据的方法和装置。 本公开的某些方面提供由无线设备执行的方法。 该方法通常包括从至少一个无线设备接收轮询帧。 轮询帧可以包括服务周期的指示，在该服务周期期间，响应于轮询帧，接入点可以向无线设备递送多个协议数据单元（PDU）。 服务周期的指示被提供为相对于在无线设备和接入点之间同步的本地时钟的值。 该方法通常还包括响应于轮询帧在服务周期期间将多个PDU发送到无线设备。 响应于轮询帧，接入点可以在服务周期期间接收轮询帧并发送多个PDU。

    MULTI-LAYER TIMING SYNCHRONIZATION FRAMEWORK
    49.
    发明申请
    MULTI-LAYER TIMING SYNCHRONIZATION FRAMEWORK 有权
    多层时序同步框架

    公开(公告)号：US20160302193A1

    公开(公告)日：2016-10-13

    申请号：US14680901

    申请日：2015-04-07

    Applicant: QUALCOMM Incorporated

    Inventor： Khosro Mohammad RABII ,  Vijay Naicker SUBRAMANIAM ,  Alireza RAISSINIA ,  Fawad SHAUKAT ,  Shivakumar BALASUBRAMANYAM

    IPC: H04W72/04 ,  H04W72/08 ,  H04W56/00 ,  H04W4/18

    CPC classification number: H04W72/0446 ,  H04J3/0664 ,  H04L1/1877 ,  H04N21/43637 ,  H04W4/18 ,  H04W56/0045 ,  H04W72/082

    Abstract: A device for transmitting data to a network includes a source subsystem and a communication subsystem. The source subsystem generates a first data packet that includes first timing information that is based on a time that the first data packet is generated. The first timing information is generated responsive to a first timing generator included in the source subsystem. The communication subsystem is coupled to the source subsystem via one or more abstraction layers and is configured to modify the first data packet to generate a modified data packet for transmission to the network. The modified data packet includes the first timing information and second timing information that is based on a time that the modified data packed is transmitted. The communications subsystem includes a second timing generator that is linked to the first timing generator through the one or more abstraction layers to generate the second timing information.

    Abstract translation: 用于向网络发送数据的设备包括源子系统和通信子系统。 源子系统生成第一数据分组，其包括基于生成第一数据分组的时间的第一定时信息。 响应于源子系统中包括的第一定时发生器产生第一定时信息。 通信子系统经由一个或多个抽象层耦合到源子系统，并且被配置为修改第一数据分组以生成用于传输到网络的经修改的数据分组。 经修改的数据分组包括基于发送修改的数据的时间的第一定时信息和第二定时信息。 通信子系统包括通过一个或多个抽象层链接到第一定时发生器以产生第二定时信息的第二定时发生器。

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