公开(公告)号：US09107219B2

公开(公告)日：2015-08-11

申请号：US13538411

申请日：2012-06-29

Applicant: Pradeep Iyer ,  Subburajan Ponnuswamy

Inventor： Pradeep Iyer ,  Subburajan Ponnuswamy

IPC: H04W4/00 ,  H04W74/08 ,  H04W28/02 ,  H04L12/28

CPC classification number: H04W74/08 ,  H04W28/0268

Abstract: A method includes detecting a first value for a first parameter associated with a first access point of a plurality of access points and based at least on the first value for the first parameter associated with the first access point, configuring a second value for a second parameter associated with a second access point of the plurality of access points.

Abstract translation: 一种方法包括检测与多个接入点的第一接入点相关联的第一参数的第一值，并且至少基于与第一接入点相关联的第一参数的第一值，为第二参数配置第二值 与所述多个接入点中的第二接入点相关联。

公开(公告)号：US20140038651A1

公开(公告)日：2014-02-06

申请号：US13563549

申请日：2012-07-31

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: H04W24/02

CPC classification number: H04W24/10 ,  H04B17/29 ,  H04W52/245

Abstract: A method includes computing a minimum sensitivity threshold value for a particular wireless device, configuring the particular wireless device to receive wireless signals with a signal strength higher than the minimum sensitivity threshold value, distributing the minimum sensitivity threshold value to other wireless devices, and configuring the other wireless devices based on the minimum sensitivity threshold value for the particular wireless device.

Abstract translation: 一种方法包括计算特定无线设备的最小灵敏度阈值，配置特定无线设备以接收具有高于最小灵敏度阈值的信号强度的无线信号，将最小灵敏度阈值分配给其他无线设备，以及配置 基于特定无线设备的最小灵敏度阈值的其他无线设备。

公开(公告)号：US20120119880A1

公开(公告)日：2012-05-17

申请号：US12947579

申请日：2010-11-16

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: G08B5/22

CPC classification number: H04W24/00 ,  G01S5/00 ,  G01S5/14 ,  G01S11/06

Abstract: Determining the location of a wireless device to be located (DTL) by three or more locating devices (LDs). LDs operating at known locations estimate the distance to the DTL by sending wireless frames to the DTL and varying frame parameters such as transmit power and data rate, searching for the boundary at which the frame is or is not received and ACKd by the DTL. For a given set of frame parameters, the SNR required to be successfully received at the DTL is known. Given that the configuration of the LD is known, the EIRP of the DL is also known. Estimating the noise floor at the DTL, and using the SNR required to successfully receive the frame at the DTL and the EIRP at the LD transmitting the frame, the path loss can be calculated. From the path loss and operating frequency, a distance estimate is calculated. EIRP of the DTL is not and need not be known. Distance estimates from at least three LDs at known locations allow a location for the DTL to be calculated by a location engine (LE). Distance estimates from more than three LDs allow for an overdetermined solution. Distance estimates derived in this manner may be combined with distance estimates calculated using other approaches, such as measuring signal strengths, or TOA/TDOA measurements. The LE process may reside on a central controller supporting the LDs, on one of the LDs, or on any suitable device with network access.

Abstract translation: 通过三个或多个定位设备（LD）确定要定位的无线设备（DTL）的位置。 在已知位置操作的LD通过向DTL发送无线帧来估计到DTL的距离，并且改变帧参数，例如发射功率和数据速率，搜索帧被接收或未被接收的边界，并由DTL进行ACKd。 对于给定的一组帧参数，已知在DTL处被成功接收的SNR需要知道。 鉴于LD的配置是已知的，DL的EIRP也是已知的。 估计在DTL处的本底噪声，并且使用在DTL处成功接收帧所需的SNR和在发送帧的LD处的EIRP，可以计算路径损耗。 从路径损耗和工作频率来计算距离估计。 DTL的EIRP不是也不需要知道的。 在已知位置处的至少三个LD的距离估计允许由位置引擎（LE）计算DTL的位置。 超过三个LD的距离估计允许一个超定的解决方案。 以这种方式导出的距离估计可以与使用其他方法计算的距离估计值相结合，例如测量信号强度或TOA / TDOA测量。 LE过程可以驻留在支持LD的中央控制器上，在其中一个LD上，或者在具有网络访问的任何合适的设备上。

公开(公告)号：US09167457B2

公开(公告)日：2015-10-20

申请号：US13080539

申请日：2011-04-05

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: H04W24/08 ,  H04L12/24 ,  H04L12/26 ,  H04W24/10 ,  H04W72/04 ,  H04W72/08 ,  H04W72/00 ,  H04W84/12 ,  H04W88/10

CPC classification number: H04W24/08 ,  H04L41/22 ,  H04L43/08 ,  H04W24/10 ,  H04W72/00 ,  H04W72/0446 ,  H04W72/082 ,  H04W84/12 ,  H04W88/10

Abstract: Methods of calculating and displaying quality metrics on a wireless digital network such as a network using IEEE 802.11 Wi-Fi standards. The quality metric calculation assigns weights only to factors which are observed above a threshold, combining multiple factors into a scalar result. The quality metric is derived from the weighted sum of two or more parameters such as: noise floor offset, channel busy indication, adjacent and overlapping channel interference, interferer duty-cycle, frame retry-rate, PHY error rate and CRC error rate. Quality spectrograms may be used to display calculated quality metrics across a channel, channel range, or frequency band, plotting calculated quality metric versus frequency or channel range over a configurable time frame. Using known locations of radios, quality ranges are mapped onto visual representations such as contour lines, shading density, or color codes, and overlayed for example over floor plans or other site representations.

Abstract translation: 在诸如使用IEEE 802.11 Wi-Fi标准的网络的无线数字网络上计算和显示质量度量的方法。 质量度量计算仅将权重分配给在阈值以上观察到的因素，将多个因子组合成标量结果。 质量度量来自两个或多个参数的加权和，例如：噪声本底偏移，信道忙指示，相邻和重叠信道干扰，干扰源占空比，帧重试率，PHY错误率和CRC错误率。 质量谱图可用于在通道，通道范围或频带上显示计算的质量度量，在可配置的时间范围内绘制计算的质量度量与频率或通道范围。 使用无线电的已知位置，质量范围被映射到视觉表示，例如轮廓线，阴影密度或颜色代码，并且例如覆盖在平面图或其他站点表示之上。

公开(公告)号：US09014021B2

公开(公告)日：2015-04-21

申请号：US13179057

申请日：2011-07-08

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04W4/00 ,  H04W24/06 ,  H04W8/00 ,  H04W24/08

CPC classification number: H04W24/08 ,  H04W8/005 ,  H04W24/06

Abstract: A combination and correlation of data from multiple sensors in a wireless digital network is described. Sensors such as spectrum monitors, access points, and wireless client devices provide spectrum data to one or more central stations connected to the network. Spectrum data from multiple sensors is combined and correlated to provide insight into network operation such as spectrum maps, detection-range maps, and for network diagnostics. Sensors providing spectrum data may be synchronized. Correlating spectrum data from synchronized sensors allows more accurate location of sources such as interferers. The known EIRP of certain wireless devices may be used to improve location estimates, and these devices may be used as calibrations sources for sensors in the wireless network.

Abstract translation: 描述了在无线数字网络中来自多个传感器的数据的组合和相关性。 诸如频谱监视器，接入点和无线客户端设备的传感器向连接到网络的一个或多个中心站提供频谱数据。 来自多个传感器的频谱数据被组合和相关，以提供对网络操作的洞察，例如频谱图，检测范围图和网络诊断。 提供频谱数据的传感器可以同步。 来自同步传感器的相关频谱数据可以更准确地定位源，如干扰源。 可以使用某些无线设备的已知EIRP来改善位置估计，并且这些设备可以用作无线网络中的传感器的校准源。

公开(公告)号：US08885499B2

公开(公告)日：2014-11-11

申请号：US13080548

申请日：2011-04-05

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: H04L12/26 ,  H04W24/08 ,  H04L12/24 ,  H04W24/10 ,  H04W72/00 ,  H04W84/12

CPC classification number: H04W24/08 ,  H04L41/22 ,  H04L43/08 ,  H04W24/10 ,  H04W72/00 ,  H04W72/0446 ,  H04W72/082 ,  H04W84/12 ,  H04W88/10

Abstract: Methods of operating devices on a wireless network as access points (AP) or spectrum monitors (SM). An adaptive radio management (ARM) process operating on the digital network senses network conditions based on data from APs and SMs on the network, and in response to conditions changes devices from AP operation to SM operation, and from SM operation back to AP operation. A method for providing wideband spectrum analysis functions on a radio operating as an AP on a channel proving client connectivity services. A method for scanning off-channel for shorter durations between transmissions to collect spectral data and a method for explicitly quieting IEEE 802.11 transmissions on a channel to collect spectral data.

Abstract translation: 在无线网络上操作设备作为接入点（AP）或频谱监视器（SM）的方法。 在数字网络上运行的自适应无线电管理（ARM）过程基于来自网络上的AP和SM的数据感测网络条件，并且响应于条件将设备从AP操作改变为SM操作，并且从SM操作返回到AP操作。 一种用于在通过证实客户端连接服务的信道上作为AP运行的无线电上提供宽带频谱分析功能的方法。 一种用于在发射之间扫描离开信道以获得较短持续时间以收集频谱数据的方法，以及用于在频道上明确地放置IEEE 802.11传输以收集频谱数据的方法。

公开(公告)号：US20090274129A1

公开(公告)日：2009-11-05

申请号：US12112285

申请日：2008-04-30

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: H04Q7/24

CPC classification number: H04W16/08 ,  H04W36/22 ,  Y02D70/142 ,  Y02D70/146

Abstract: Distributed load balancing in wireless digital networks. In a network having a plurality of access nodes with at least one wireless client connected to a first access node, the client is encouraged to move to a different access node by reducing the apparent signal strength of transmissions from the access node to the client. Apparent signal strength can be reduced by reducing transmit power, by using beam forming, antenna switching, or a combination. Other access nodes may send unsolicited frames, such as probe response frames to the client, encouraging the client to move.

Abstract translation: 无线数字网络中的分布式负载平衡。 在具有多个具有至少一个无线客户端连接到第一接入节点的接入节点的网络中，通过减少从接入节点到客户端的传输的视在信号强度，鼓励客户端移动到不同的接入节点。 可以通过使用波束形成，天线切换或组合来降低发射功率来降低视在信号强度。 其他接入节点可以向客户端发送未经请求的帧，例如探测响应帧，鼓励客户端移动。

公开(公告)号：US09113335B2

公开(公告)日：2015-08-18

申请号：US12112285

申请日：2008-04-30

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: H04W36/22 ,  H04W16/08

CPC classification number: H04W16/08 ,  H04W36/22 ,  Y02D70/142 ,  Y02D70/146

Abstract: Distributed load balancing in wireless digital networks. In a network having a plurality of access nodes with at least one wireless client connected to a first access node, the client is encouraged to move to a different access node by reducing the apparent signal strength of transmissions from the access node to the client. Apparent signal strength can be reduced by reducing transmit power, by using beam forming, antenna switching, or a combination. Other access nodes may send unsolicited frames, such as probe response frames to the client, encouraging the client to move.

Abstract translation: 无线数字网络中的分布式负载平衡。 在具有多个具有至少一个无线客户端连接到第一接入节点的接入节点的网络中，通过减少从接入节点到客户端的传输的视在信号强度，鼓励客户端移动到不同的接入节点。 可以通过使用波束形成，天线切换或组合来降低发射功率来降低视在信号强度。 其他接入节点可以向客户端发送未经请求的帧，例如探测响应帧，鼓励客户端移动。

公开(公告)号：US08660212B2

公开(公告)日：2014-02-25

申请号：US13016458

申请日：2011-01-28

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: H04L27/00 ,  H04B3/46 ,  H03D1/04 ,  H04L23/00

CPC classification number: H04L43/50 ,  H04B1/713 ,  H04L27/06

Abstract: Interference classification with minimal or incomplete information. Receivers in access points and in other network devices on a wireless digital network may be switched to a spectrum monitor mode in which they provide amplitude-versus-frequency information for a chosen part of the spectrum. This may be performed by performing a FFT or similar transform on the signals from the receiver. Receivers are calibrated with known interference sources in controlled environments to determine peaks, pulse frequency, bandwidth, and other identifying parameters of the interference source in best and worst case conditions. These calibrated values are used for matching interference signatures. Calibration is also performed using partial signatures collected over a short period in the order of microseconds. These partial signals may be used to detect interferers while scanning. Another aspect of the invention is to record the variation of noise floor in the presence of interference sources. Multiple interference sources may be detected. While data collection is performed in one or more APs, classification may be performed in the AP or on other systems associated with the network collecting and processing spectrum information from one or more APs.

Abstract translation: 干扰分类与最少或不完整的信息。 接入点和无线数字网络上的其他网络设备中的接收机可以被切换到频谱监视器模式，在频谱监视器模式中，它们为所选择的频谱部分提供幅度 - 频率信息。 这可以通过对来自接收机的信号执行FFT或类似的变换来执行。 接收机在受控环境中用已知干扰源进行校准，以便在最佳和最坏情况下确定干扰源的峰值，脉冲频率，带宽和其他识别参数。 这些校准值用于匹配干扰特征。 校准也使用在几个微秒级的短时间内收集的部分签名进行。 这些部分信号可以用于在扫描时检测干扰源。 本发明的另一方面是在存在干扰源的情况下记录本底噪声的变化。 可以检测多个干扰源。 虽然在一个或多个AP中执行数据收集，但是可以在AP中或与网络相关联的其他系统上执行分类，从一个或多个AP收集和处理频谱信息。

公开(公告)号：US08625436B2

公开(公告)日：2014-01-07

申请号：US13080552

申请日：2011-04-05

Applicant: Subburajan Ponnuswamy

Inventor： Subburajan Ponnuswamy

IPC: H04L12/26

CPC classification number: H04W24/08 ,  H04L41/22 ,  H04L43/08 ,  H04W24/10 ,  H04W72/00 ,  H04W72/0446 ,  H04W72/082 ,  H04W84/12 ,  H04W88/10

Abstract: Methods of aggregating spectrum data captured from a narrowband radio to form a spectrum covering a much wider frequency band. Frequency data, such as FFT spectrum data captured from a narrowband receiver such as an IEEE 802.11 Wi-Fi receiver are combined to display representative real-time FFT, average FFT, and FFT duty cycle data of a wideband spectrum. Data is captured from narrow band radios such as access points, station monitors, or client devices on a wireless network. A wideband spectrum may be aggregated from data captured from one or from multiple devices. Data may be stored for later analysis and display.

Abstract translation: 聚合从窄带无线电获取的频谱数据形成覆盖更宽频带的频谱的方法。 将诸如IEEE 802.11 Wi-Fi接收机之类的窄带接收机所获取的FFT频谱数据的频率数据组合以显示宽带频谱的代表性实时FFT，平均FFT和FFT占空比数据。 从无线网络上的接入点，站监视器或客户端设备等窄带无线电中捕获数据。 可以从从一个或多个设备捕获的数据聚合宽带频谱。 可以存储数据供以后分析和显示。