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    SECURE LONG TRAINING FIELD (LTF)
    2.
    发明公开
    SECURE LONG TRAINING FIELD (LTF) 审中-公开

    公开(公告)号：US20240171436A1

    公开(公告)日：2024-05-23

    申请号：US18390180

    申请日：2023-12-20

    Applicant: QUALCOMM Incorporated

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

    IPC: H04L27/26 ,  H04L5/00

    CPC classification number: H04L27/2613 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2605 ,  H04B7/0452

    Abstract: This disclosure provides methods, devices and systems for generating a secure long training field (LTF). In some implementations, the secure LTF may include a randomized bit sequence that is difficult, if not impossible, to replicate by any device other than the transmitting device and the intended receiving device. For example, the transmitting device may use a block cipher or stream cipher to generate a pseudorandom bit sequence and may select a subset of bits of the pseudorandom bit sequence to be mapped to a sequence of modulation symbols representing an LTF symbol of the secure LTF. More specifically, each of the modulation symbols is mapped to a respective one of a number of subcarriers spanning a bandwidth of the secure LTF. The transmitting device may further transmit a physical layer convergence protocol (PLCP) protocol data unit (PPDU) that includes the secure LTF to the receiving device.

    SECURE FINE TIMING MEASUREMENTS
    3.
    发明申请
    SECURE FINE TIMING MEASUREMENTS 有权

    公开(公告)号：US20210120405A1

    公开(公告)日：2021-04-22

    申请号：US17076682

    申请日：2020-10-21

    Applicant: QUALCOMM Incorporated

    Inventor： Youhan KIM ,  Alireza RAISSINIA ,  Xiaoxin ZHANG ,  Vincent Knowles Jones, IV

    IPC: H04W12/00 ,  H04W24/08 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W76/10 ,  H04W12/08

    Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for initiating a secure FTM session between at least first and second STAs. A first STA initiates, with a second STA, a secure FTM session. The first STA receives a plurality of FTM packets from the second STA, each of the plurality of FTM packets including at least one preamble subject to a respective first CSD. The first STA transmits, to the second STA, an ACK for each of plurality of FTM packets. The first STA receives a measurement report including a ToD offset by the respective first CSD for each of the plurality of FTM packets, and a ToA at the second STA of each of a plurality of ACKs. The first STA determines a RTT between the first and second STAs based on the offset ToD and the ToA.

    TECHNIQUES FOR COMMUNICATION MANAGEMENT USING MULTIPLE NETWORK ALLOCATION VECTORS
    5.
    发明申请
    TECHNIQUES FOR COMMUNICATION MANAGEMENT USING MULTIPLE NETWORK ALLOCATION VECTORS 审中-公开

    公开(公告)号：US20180054818A1

    公开(公告)日：2018-02-22

    申请号：US15674272

    申请日：2017-08-10

    Applicant: QUALCOMM Incorporated

    Inventor： Naveen Kumar KAKANI ,  Alireza RAISSINIA

    IPC: H04W72/04 ,  H04L5/00

    CPC classification number: H04W72/0446 ,  H04L5/0053 ,  H04L43/16 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08

    Abstract: Aspects of the present disclosure allow for one or more network allocation vectors (NAVs) to control whether or not the STA may transmit on the wireless channel depending on whether the NAV was set by a device in the same BSS (“intra-BSS”) or from a different BSS (OBSS or “inter-BSS”). In one aspect, the STA may maintain two NAVs (intra-BSS NAV and inter-BSS NAV). In accordance with one technique, if the inter-BSS NAV was previously set based on an in-deterministic frame (e.g., a frame received by the STA that cannot readily be identified as either intra-BSS frame or an inter-BSS frame), then the STA may respond to a trigger frame from an AP after the inter-BSS NAV has been set as though the inter-BSS NAV is intra-BSS NAV.

    TRAFFIC ADVERTISEMENT IN NEIGHBOR AWARE NETWORK (NAN) DATA PATH
    9.
    发明申请
    TRAFFIC ADVERTISEMENT IN NEIGHBOR AWARE NETWORK (NAN) DATA PATH 有权
    邻里数据路径中的交通广告

    公开(公告)号：US20160174196A1

    公开(公告)日：2016-06-16

    申请号：US14959916

    申请日：2015-12-04

    Applicant: QUALCOMM Incorporated

    Inventor： Abhishek Pramod Patil ,  Santosh Paul ABRAHAM ,  Alireza RAISSINIA ,  George CHERIAN

    IPC: H04W72/00 ,  H04W68/00 ,  H04L5/00

    CPC classification number: H04W72/005 ,  H04L5/0055 ,  H04W68/005 ,  H04W74/06 ,  H04W84/18

    Abstract: A method of communication includes generating a traffic advertisement. The traffic advertisement indicates availability of data to be sent to multiple devices of a set of devices. The data includes first data to be sent to a first device and second data to be sent to a second device. The method also includes sending the traffic advertisement during a paging window. The method further includes receiving a first acknowledgement (ACK) during the paging window from the first device. The method also includes receiving a trigger message from the second device. The method further includes sending the first data to the first device during a data transmission window. The method also includes, in response to detecting receipt of the trigger message from the second device, sending the second data to the second device during the data transmission window without receiving a second ACK during the paging window from the second device.

    Abstract translation: 通信方法包括生成交通广告。 流量广告指示要发送到一组设备的多个设备的数据的可用性。 数据包括要发送到第一设备的第一数据和要发送到第二设备的第二数据。 该方法还包括在寻呼窗口期间发送业务广告。 该方法还包括在第一设备的寻呼窗口期间接收第一确认（ACK）。 该方法还包括从第二设备接收触发消息。 该方法还包括在数据传输窗口期间将第一数据发送到第一设备。 该方法还包括响应于检测到来自第二设备的触发消息的接收，在数据传输窗口期间将第二数据发送到第二设备，而不在来自第二设备的寻呼窗口期间接收到第二ACK。

    BLOOM FILTER FOR SERVICE HINT INFORMATION IN ADVERTISEMENTS
    10.
    发明申请
    BLOOM FILTER FOR SERVICE HINT INFORMATION IN ADVERTISEMENTS 有权
    BLOOM过滤器在广告中提供服务提示信息

    公开(公告)号：US20160112936A1

    公开(公告)日：2016-04-21

    申请号：US14861325

    申请日：2015-09-22

    Applicant: QUALCOMM Incorporated

    Inventor： Santosh Paul ABRAHAM ,  George CHERIAN ,  Alireza RAISSINIA

    IPC: H04W48/16

    CPC classification number: H04W48/16 ,  H04L1/0061

    Abstract: Certain aspects of the present disclosure generally relate to using bloom filter hash functions for service hint information in advertisements such as beacons and probe responses. Certain aspects provide an apparatus for wireless communications, such as an access point (AP). The apparatus generally includes a processing system configured to generate a plurality of bitmaps that indicate one or more services known by the apparatus, each bitmap being generated by applying a different set of one or more cyclic redundancy check (CRC) based hash functions to one or more service identifications (IDs) of each service, and to generate one or more frames, each frame including one of the plurality of bitmaps and an indication of the set of one or more CRC based hash functions used to generate the bitmap included in the frame, and an interface configured to output the one or more frames for transmission.

    Abstract translation: 本公开的某些方面通常涉及在诸如信标和探测响应的广告中使用用于服务提示信息的布隆过滤器散列函数。 某些方面提供无线通信装置，例如接入点（AP）。 该装置通常包括处理系统，其被配置为生成指示该设备已知的一个或多个服务的多个位图，每个位图通过将不同的一组基于一个或多个循环冗余校验（CRC）的散列函数应用于一个或多个循环冗余校验 每个服务的更多服务标识（ID），并且生成一个或多个帧，每个帧包括多个位图之一，以及用于生成包括在帧中的位图的一个或多个基于CRC的散列函数的集合的指示 以及被配置为输出所述一个或多个帧以进行传输的接口。

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