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    Physical layer shielding of wireless communications
    31.
    发明授权
    Physical layer shielding of wireless communications 有权

    公开(公告)号：US11575413B1

    公开(公告)日：2023-02-07

    申请号：US17582689

    申请日：2022-01-24

    Applicant: Cisco Technology, Inc.

    Inventor： John Matthew Swartz ,  Nagendra Kumar Nainar ,  Matthew Aaron Silverman

    IPC: H04B7/0452 ,  H04B7/0426 ,  H04B17/336 ,  H04B17/327

    Abstract: Presented herein are techniques to shield transmissions from being received and the information contained in them recovered by unwanted devices. Multi-user multiple-input multiple-output (MU-MIMO) techniques are employed, and in particular the spatial dimension aspects of those techniques. Shield nodes are controlled to transmit in a way to obscure the downlink streams transmitted by a wireless access point that are intended for a particular client device to anything outside of the shielded area, and also to obscure uplink streams from one or more client devices to the wireless access point to anything outside of the shielded area but allowing the uplink streams to be well received by the wireless access point.

    Uplink-based wireless radio resource management
    35.
    发明授权
    Uplink-based wireless radio resource management 有权
    基于上行链路的无线资源管理

    公开(公告)号：US09585124B2

    公开(公告)日：2017-02-28

    申请号：US14088483

    申请日：2013-11-25

    Applicant: Cisco Technology, Inc.

    Inventor： Neil R. Diener ,  Pooya Monajemi ,  Jim Florwick ,  Jyoti Raju ,  John Matthew Swartz ,  Ahmadreza Hedayat

    IPC: H04W72/08 ,  H04W72/04 ,  H04W52/24 ,  H04W52/40 ,  H04B17/318

    CPC classification number: H04W72/04 ,  H04B17/318 ,  H04W52/24 ,  H04W52/242 ,  H04W52/245 ,  H04W52/40

    Abstract: Presented herein are techniques for using uplink transmissions from devices (e.g., wireless tags, clients, etc.) to determine a path loss between neighboring access points. In one example, a wireless controller obtains receive signal strength information of uplink transmissions received at neighboring access points in a wireless network. The wireless controller determines an effective path loss between the neighboring access points based on the receive signal strength information for the uplink transmissions received at the neighboring access points. The wireless controller also performs radio resource management operations in the wireless network using the effective path loss determined based on the uplink transmissions received at the neighboring access points.

    Abstract translation: 这里呈现的是用于使用来自设备（例如，无线标签，客户机等）的上行链路传输来确定相邻接入点之间的路径损耗的技术。 在一个示例中，无线控制器获得在无线网络中在相邻接入点处接收的上行链路传输的接收信号强度信息。 无线控制器基于在相邻接入点处接收的上行链路传输的接收信号强度信息来确定相邻接入点之间的有效路径损耗。 无线控制器还使用基于在相邻接入点处接收到的上行链路传输确定的有效路径损耗来在无线网络中执行无线电资源管理操作。

    PROVIDING CAPACITY OPTIMIZED STREAMING DATA WITH FORWARD ERROR CORRECTION
    36.
    发明申请
    PROVIDING CAPACITY OPTIMIZED STREAMING DATA WITH FORWARD ERROR CORRECTION 有权
    提供容量优化流程数据，并进行前向纠错

    公开(公告)号：US20130326303A1

    公开(公告)日：2013-12-05

    申请号：US13962145

    申请日：2013-08-08

    Applicant: Cisco Technology, Inc.

    Inventor： Neil DIENER ,  John Matthew Swartz ,  William Robert Seed

    IPC: H03M13/05

    CPC classification number: H03M13/05 ,  H04L1/0017 ,  H04L1/0019 ,  H04L1/0041

    Abstract: In an example embodiment, there is described herein a methodology were the Forward Error Correction (FEC) data for a data stream is distributed into a plurality of FEC sub-streams. Subscribers to the data stream indicate which of the plurality of FEC sub-streams should be provided to them. The distribution of FEC sub-streams are limited to subscribed FEC sub-streams. FEC sub-streams with no subscribers are not forwarded beyond a distribution point such as an access point (AP).

    Abstract translation: 在示例实施例中，这里描述了一种方法，即将数据流的前向纠错（FEC）数据分发到多个FEC子流中。 数据流的订户指示应向其提供多个FEC子流中的哪一个。 FEC子流的分布限于订阅的FEC子流。 没有订户的FEC子流不被转发到诸如接入点（AP）的分发点之外。

    SURVEY AND OPTIMIZER SYSTEM FOR LARGE PUBLIC VENUE ACCESS POINT NETWORKS WITH STEERABLE ANTENNA BEAMS
    39.
    发明公开
    SURVEY AND OPTIMIZER SYSTEM FOR LARGE PUBLIC VENUE ACCESS POINT NETWORKS WITH STEERABLE ANTENNA BEAMS 审中-公开

    公开(公告)号：US20240172012A1

    公开(公告)日：2024-05-23

    申请号：US17990790

    申请日：2022-11-21

    Applicant: Cisco Technology, Inc.

    Inventor： John Matthew Swartz ,  Jerome Henry ,  Robert Edgar Barton ,  Matthew Aaron Silverman ,  Fred Jay Anderson

    IPC: H04W24/08 ,  H04W24/02

    CPC classification number: H04W24/08 ,  H04W24/02

    Abstract: Presented herein are techniques to optimize wireless local area network access point beam settings. A method includes, during a survey period, causing a first access point and a second access point in a wireless local area network, to simultaneously transmit survey transmissions according to a predetermined sequence of transmission states, receiving, from a survey station that received the survey transmissions during the survey period, telemetry associated with the survey transmissions, the telemetry including a location of the survey station when the survey station received the survey transmissions, and after the survey period, controlling, based on the telemetry associated with the survey transmissions, the first access point to operate according to a first transmission state from among the transmission states and the second access point to operate according to a second transmission state from among the transmission states.

    ADAPTIVE PRESENCE-BASED ACCESS POINT RADIO CONFIGURATION
    40.
    发明公开
    ADAPTIVE PRESENCE-BASED ACCESS POINT RADIO CONFIGURATION 审中-公开

    公开(公告)号：US20240147245A1

    公开(公告)日：2024-05-02

    申请号：US17977169

    申请日：2022-10-31

    Applicant: Cisco Technology, Inc.

    Inventor： Jerome Henry ,  Robert Edgar Barton ,  Fred Jay Anderson ,  Matthew Aaron Silverman ,  John Matthew Swartz ,  Joshua D. Suhr

    IPC: H04W16/10

    CPC classification number: H04W16/10

    Abstract: A method for adaptive presence-based radio configuration of access points in a venue includes defining a number of regions in the venue in which access points are deployed, each region having a center point, and assigning a first access point to a first region, positioned at the center of the first region. The method also includes affecting a first energy level in the first region, which corresponds to a power of a transmit signal emitted by the first access point, and assigning to the first region a configurable capacity value that determines an acceptable overlap constraint between the first energy level of the first region and an energy level of a neighboring region. The method further includes generating data describing a tessellation graph in which a possible map of the access points is formed using an iterative descent process based on the first energy level and the overlap constraint.

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