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    Power line communication (PLC) denial of service attack
    101.
    发明授权
    Power line communication (PLC) denial of service attack 有权

    公开(公告)号：US12069026B2

    公开(公告)日：2024-08-20

    申请号：US17808105

    申请日：2022-06-21

    Applicant: QUALCOMM Incorporated

    Inventor： Ramanathan Subramanian ,  Jain Roy Ambi ,  Srinivas Katar

    IPC: H04L9/40

    CPC classification number: H04L63/0227 ,  H04L63/12 ,  H04L63/1458

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, to mitigate a denial of service attack to a power line communication (PLC) network. A first node of the PLC network may activate a countermeasure that enables the PLC network (including the first node and a second node) to continue to communicate when one or more transmissions associated with a denial of service attack are injected onto the communication medium. This disclosure includes several techniques to detect a denial of service attack and several countermeasures that may be implemented. For example, a countermeasure may include the use of a custom preamble or a custom priority resolution symbol that is specific to the PLC network. The first node and the second node may disregard transmissions that do not conform to the custom preamble or custom priority resolution symbol.

    Wireless network configuration for low-latency applications
    104.
    发明授权
    Wireless network configuration for low-latency applications 有权

    公开(公告)号：US11903017B2

    公开(公告)日：2024-02-13

    申请号：US17191234

    申请日：2021-03-03

    Applicant: QUALCOMM Incorporated

    Inventor： Xiaolong Huang ,  Srinivas Katar ,  Andrew MacKinnon Davidson ,  Sandip Homchaudhuri ,  Qi Xue ,  Neelakantan Nurani Krishnan ,  Simon Jan Brand

    IPC: H04W72/563 ,  H04W76/15 ,  H04W40/02

    CPC classification number: H04W72/563 ,  H04W40/02 ,  H04W76/15

    Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for low-latency communications in wireless networks. In some implementations, a wireless station (STA) may transmit a data session request to a root access point (AP) in a wireless network responsive to activating an application associated with latency restricted (LR) data traffic. In some aspects, the data session request may indicate one or more preferred channels to carry the LR data traffic. In some other aspects, the data session request may indicate one or more preferred times to exchange the LR data traffic. In some implementations, the root AP may establish an LR data path with the STA based on the preferred time or frequency resources indicated in the data session request. The LR data path may include time or frequency resources that are reserved for LR data traffic between the root AP and the STA.

    Asynchronous channel access control of a wireless system
    106.
    发明授权
    Asynchronous channel access control of a wireless system 有权

    公开(公告)号：US11696345B2

    公开(公告)日：2023-07-04

    申请号：US17188165

    申请日：2021-03-01

    Applicant: QUALCOMM Incorporated

    Inventor： Qi Xue ,  Srinivas Katar ,  Chao Zou ,  Naveen Gangadharan ,  Neelakantan Nurani Krishnan ,  Sandip Homchaudhuri ,  Xiaolong Huang ,  Anish Ashok

    IPC: H04W74/08

    CPC classification number: H04W74/0883 ,  H04W74/0816

    Abstract: This disclosure provides systems, methods and apparatus for asynchronous channel access control of a wireless system. In some aspects, a device may adjust the priority of one or more PPDUs and may perform other operations to ensure control of a wireless medium at certain times while still allowing for other devices to communicate on the wireless medium. For example, the device may adjust a backoff counter or one or more EDCA parameters to ensure obtaining control of the wireless medium to transmit a first PPDU of an application file. For one or more subsequent PPDUs of the application file, the device may again adjust a backoff counter or one or more EDCA parameters to allow other devices to obtain control of the wireless medium in certain scenarios (such as a second device to provide information back to the device or to otherwise transmit using the shared wireless medium).

    Channel selection constraints in a network having multiple access points
    107.
    发明授权
    Channel selection constraints in a network having multiple access points 有权

    公开(公告)号：US11019603B2

    公开(公告)日：2021-05-25

    申请号：US15960297

    申请日：2018-04-23

    Applicant: QUALCOMM Incorporated

    Inventor： Ajay Kumar Pathak ,  Srinivas Katar ,  Xiaolong Huang ,  Kapil Rai

    IPC: H04W72/02 ,  H04W16/10 ,  H04W24/02 ,  H04W16/02 ,  H04W16/20 ,  H04W16/14 ,  H04W84/12 ,  H04W72/08

    Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for communicating channel selection constraints in a network having multiple access points (APs). In one aspect, a root AP may assist with channel selection (assignment) for the multiple APs. A first AP can provide channel operating constraints to the root AP to indicate one or more operating constraints for a particular channel that may be used by the first AP. The operating constraints may be based, at least in part, on a hardware characteristic of the first AP. For example, an operating constraint may indicate a minimum channel separation or a maximum transmit power to consider when the particular channel is used concurrently with another channel. In another aspect, the first AP can communicate a channel selection error and error code when a particular channel cannot be used due to an operating constraint.

    BASIC SERVICE SET (BSS) CONFIGURATION IN A MULTIPLE ACCESS POINT (MULTI-AP) NETWORK
    108.
    发明申请
    BASIC SERVICE SET (BSS) CONFIGURATION IN A MULTIPLE ACCESS POINT (MULTI-AP) NETWORK 有权

    公开(公告)号：US20210127307A1

    公开(公告)日：2021-04-29

    申请号：US17079247

    申请日：2020-10-23

    Applicant: QUALCOMM Incorporated

    Inventor： Xiaolong Huang ,  Srinivas Katar ,  Bharat Bhushan

    IPC: H04W28/24 ,  H04W74/08

    Abstract: This disclosure provides methods, devices and systems for controlling basic service set (BSS) configuration of an access point (AP) in a multi-AP network. The multi-AP network may include a first AP that manages a first basic service set (BSS) and a second AP that manages a second BSS. The first BSS and the second BSS may share one or more wireless channels or may have overlapping coverage areas. A multi-AP controller may determine a BSS configuration policy (such as a maximum transmission opportunity (TXOP) duration) for the second BSS based on a type of traffic in the first BSS. This disclosure includes techniques for sharing traffic characteristics, determining the BSS configuration policy, communicating the BSS configuration policy, and controlling the BSS configuration policies for multiple BSSs so that one of the BSSs can provide a quality of service (QoS) for one or more stations (STAs).

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