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    PROTECTION OF RANGING SOUNDING SIGNALS FROM PHYSICAL LEVEL ATTACKS
    153.
    发明申请
    PROTECTION OF RANGING SOUNDING SIGNALS FROM PHYSICAL LEVEL ATTACKS 审中-公开

    公开(公告)号：US20180287826A1

    公开(公告)日：2018-10-04

    申请号：US15943243

    申请日：2018-04-02

    Applicant: QUALCOMM Incorporated

    Inventor： Erik David Lindskog ,  Ning Zhang ,  Naveen Kumar Kakani ,  Alireza Raissinia ,  Xiaoxin Zhang

    IPC: H04L25/02

    CPC classification number: H04L25/0226 ,  H04L25/0204 ,  H04L63/14 ,  H04W12/12 ,  H04W84/12

    Abstract: Generally, the described techniques provide for protection mechanisms for sounding training signals transmitted between wireless devices when performing ranging sounding estimation. For example, sounding training signals may be encoded to include a sequence of phase rotations or cyclic shifts to protect the sounding training signal from peer devices. In some cases, encoding information associated with a long training field (LTF) may be transmitted either before or after the LTF is transmitted. Additionally or alternatively, a time delay may be introduced to the sounding training signal, where timing information may be removed from one or more fields of the sounding training signal and the time delay may be appended to an interframe spacing. Alternatively, a frame may be split into multiple frames with the sounding training signal in a first frame, and timing information in a second frame that is offset in time from the first frame.

    ENHANCED STEERING IN A NETWORK HAVING MULTIPLE ACCESS POINTS
    155.
    发明申请
    ENHANCED STEERING IN A NETWORK HAVING MULTIPLE ACCESS POINTS 审中-公开

    公开(公告)号：US20180279192A1

    公开(公告)日：2018-09-27

    申请号：US15927735

    申请日：2018-03-21

    Applicant: QUALCOMM Incorporated

    Inventor： Alireza Raissinia ,  Xiaolong Huang ,  Sai Yiu Duncan Ho ,  Srinivas Katar ,  Brian Michael Buesker

    IPC: H04W36/08 ,  H04W36/22 ,  H04W36/38

    CPC classification number: H04W36/08 ,  H04W28/08 ,  H04W36/22 ,  H04W36/38 ,  H04W48/20

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer-readable media, for steering an association of a device in a network having multiple access points (APs). In one aspect, a first AP can obtain per-AP metric information regarding a plurality of other APs in the network. The per-AP metric information may include backhaul performance information regarding at least one wireless backhaul channel in the network. The per-AP metric information may include an estimated air time fraction value reported by the other APs. A selection to steer the device from the first AP to a second AP can be based, at least in part, on the per-AP metric information. In some implementations, a Multi-AP Controller can redistribute per-AP metric information collected from multiple APs in the network. In some implementations, a topology of the network may be optimized by steering a child AP to another wireless backhaul link.

    DYNAMIC SELECTION OF CONTROL RESPONSE FRAME PARAMETERS
    158.
    发明申请
    DYNAMIC SELECTION OF CONTROL RESPONSE FRAME PARAMETERS 审中-公开

    公开(公告)号：US20180103487A1

    公开(公告)日：2018-04-12

    申请号：US15730709

    申请日：2017-10-11

    Applicant: QUALCOMM Incorporated

    Inventor： Alfred Asterjadhi ,  George Cherian ,  Abhishek Pramod Patil ,  Alireza Raissinia ,  Ravi Gidvani ,  James Simon Cho

    IPC: H04W74/00 ,  H04W24/02

    CPC classification number: H04W74/002 ,  H04W24/02 ,  H04W74/02 ,  H04W84/12 ,  H04W92/18

    Abstract: A wireless device (e.g., a station (STA)) may receive a transmission soliciting a control transmission (e.g., a soliciting transmission). The STA may identify a transmission parameter indicator, which may indicate a change in one or more parameters in a control response transmission parameter set (e.g., a set of parameters used for control transmissions in response to the soliciting transmission). The STA may transmit the control transmission in response to the soliciting transmission based on the identified transmission parameter indicator. The control response transmission parameter set may include a frame format, a physical layer convergence protocol (PLCP) protocol data unit (PPDU) format, a bandwidth, a modulation scheme, an encoding scheme, a modulation and coding scheme (MCS), a number of spatial streams (NSS), and/or a PPDU duration. In some cases, the transmission parameter indicator may indicate disabling or resumption of extended range (ER) single user (SU) PPDU format usage.

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