公开(公告)号：US20150334569A1

公开(公告)日：2015-11-19

申请号：US14278555

申请日：2014-05-15

Applicant: Cisco Technology, Inc.

Inventor： Raghuram Rangarajan ,  Brian D. Hart ,  Sujai Hajela ,  Santosh Pandey ,  David Kloper ,  Greg Corsetto ,  Allen J. Huotari

IPC: H04W12/08 ,  H04W64/00

CPC classification number: H04W12/08 ,  H04W4/80 ,  H04W12/12 ,  H04W64/003

Abstract: Techniques are presented for detecting rogue wireless beacon devices. Wireless transmissions from beacon devices are received at a plurality of receiver devices. The wireless transmissions of the beacon devices comprise packets that carry information used for location-based services for mobile wireless devices. Content of one or more fields of the packets transmitted by the beacon devices and received by one or more of the receiver devices is obtained. The content of one or more fields of the packets is analyzed to detect an unauthorized beacon device. The analyzing operation may involve comparing the content of the one or more fields of the packets against a list that contains one or more identifiers for authorized beacon devices. In another form, analyzing may involve analyzing the content of the one or more fields of the packets with pattern information related to advertising content or advertising source.

Abstract translation: 提供了用于检测流氓无线信标设备的技术。 在多个接收机设备处接收来自信标设备的无线传输。 信标设备的无线传输包括携带用于移动无线设备的基于位置的服务的信息的分组。 获得由信标设备发送并由一个或多个接收机设备接收的分组的一个或多个字段的内容。 分析分组的一个或多个字段的内容以检测未经授权的信标设备。 分析操作可以包括将分组的一个或多个字段的内容与包含用于授权信标设备的一个或多个标识符的列表进行比较。 在另一种形式中，分析可以包括利用与广告内容或广告源相关联的模式信息来分析分组的一个或多个字段的内容。

公开(公告)号：US20160073403A1

公开(公告)日：2016-03-10

申请号：US14479521

申请日：2014-09-08

Applicant: Cisco Technology, Inc.

Inventor： David Kloper ,  Raghuram Rangarajan ,  Greg Corsetto

IPC: H04W72/04 ,  H04W72/08

CPC classification number: H04L1/00 ,  H04W16/14 ,  H04W24/00

Abstract: An access point (AP) includes a transceiver to service wireless client traffic on wireless channels within a channel bandwidth. The AP services wireless client traffic in a first channel bandwidth and sets a receiver bandwidth to include the first channel bandwidth and a second channel bandwidth initially not available for servicing wireless client traffic. Concurrent with servicing the wireless client traffic in the first channel bandwidth, the AP searches the second channel bandwidth for any interference signal. If no interference signal is found in the second channel bandwidth, the AP declares the second channel bandwidth free of interference.

Abstract translation: 接入点（AP）包括收发信机以在信道带宽内的无线信道上服务无线客户端业务。 AP服务无线客户端在第一信道带宽中的业务，并且设置接收机带宽以包括第一信道带宽和最初不可用于服务无线客户端业务的第二信道带宽。 与第一通道带宽中的无线客户端业务服务同时，AP在第二信道带宽上搜索任何干扰信号。 如果在第二信道带宽中没有发现干扰信号，则AP声明第二信道带宽没有干扰。

公开(公告)号：US09590762B2

公开(公告)日：2017-03-07

申请号：US14479521

申请日：2014-09-08

Applicant: Cisco Technology, Inc.

Inventor： David Kloper ,  Raghuram Rangarajan ,  Greg Corsetto

IPC: H04W36/22 ,  H04W40/12 ,  H04W72/02 ,  H04L1/00 ,  H04W24/00 ,  H04W16/14

CPC classification number: H04L1/00 ,  H04W16/14 ,  H04W24/00

Abstract: An access point (AP) includes a transceiver to service wireless client traffic on wireless channels within a channel bandwidth. The AP services wireless client traffic in a first channel bandwidth and sets a receiver bandwidth to include the first channel bandwidth and a second channel bandwidth initially not available for servicing wireless client traffic. Concurrent with servicing the wireless client traffic in the first channel bandwidth, the AP searches the second channel bandwidth for any interference signal. If no interference signal is found in the second channel bandwidth, the AP declares the second channel bandwidth free of interference.

Abstract translation: 接入点（AP）包括收发信机以在信道带宽内的无线信道上服务无线客户端业务。 AP服务无线客户端在第一信道带宽中的业务，并且设置接收机带宽以包括第一信道带宽和最初不可用于服务无线客户端业务的第二信道带宽。 与第一通道带宽中的无线客户端业务服务同时，AP在第二信道带宽上搜索任何干扰信号。 如果在第二信道带宽中没有发现干扰信号，则AP声明第二信道带宽没有干扰。

公开(公告)号：US20140205039A1

公开(公告)日：2014-07-24

申请号：US13780598

申请日：2013-02-28

Applicant: CISCO TECHNOLOGY, INC.

Inventor： John Blosco ,  James Friedmann ,  Greg Corsetto

IPC: H04B7/04

CPC classification number: H04B7/0691 ,  H04B7/0413 ,  H04B7/0671

Abstract: Techniques are presented to reduce the number of antennas used for a transmission for a given antenna configuration and data rate. At a wireless communication device having a plurality of antennas and capable of sending a transmission via one or more of the plurality of antennas, a determination is made of a data rate and antenna configuration to be used for a transmission. A comparison is made between a total transmit power for a minimum number of antennas for the data rate to be used for the transmission and a total transmit power associated with the antenna configuration for the transmission. When the total transmit power for a minimum number of antennas for the data rate is greater than the total transmit power associated with the antenna configuration for the transmission, the transmission is sent with the minimum number of antennas.

Abstract translation: 呈现技术以减少用于给定天线配置和数据速率的传输的天线数量。 在具有多个天线并且能够经由多个天线中的一个或多个天线发送传输的无线通信设备中，确定要用于传输的数据速率和天线配置。 对于要用于传输的数据速率的最小数量天线的总发射功率和与用于传输的天线配置相关联的总发射功率进行比较。 当用于数据速率的最小数量的天线的总发射功率大于与用于传输的天线配置相关联的总发射功率时，以最小数量的天线发送传输。

公开(公告)号：US09258713B2

公开(公告)日：2016-02-09

申请号：US14278555

申请日：2014-05-15

Applicant: Cisco Technology, Inc.

Inventor： Raghuram Rangarajan ,  Brian D. Hart ,  Sujai Hajela ,  Santosh Pandey ,  David Kloper ,  Greg Corsetto ,  Allen J. Huotari

IPC: H04L9/32 ,  H04W12/08 ,  H04W64/00

CPC classification number: H04W12/08 ,  H04W4/80 ,  H04W12/12 ,  H04W64/003

Abstract: Techniques are presented for detecting rogue wireless beacon devices. Wireless transmissions from beacon devices are received at a plurality of receiver devices. The wireless transmissions of the beacon devices comprise packets that carry information used for location-based services for mobile wireless devices. Content of one or more fields of the packets transmitted by the beacon devices and received by one or more of the receiver devices is obtained. The content of one or more fields of the packets is analyzed to detect an unauthorized beacon device. The analyzing operation may involve comparing the content of the one or more fields of the packets against a list that contains one or more identifiers for authorized beacon devices. In another form, analyzing may involve analyzing the content of the one or more fields of the packets with pattern information related to advertising content or advertising source.

Abstract translation: 提供了用于检测流氓无线信标设备的技术。 在多个接收机设备处接收来自信标设备的无线传输。 信标设备的无线传输包括携带用于移动无线设备的基于位置的服务的信息的分组。 获得由信标设备发送并由一个或多个接收机设备接收的分组的一个或多个字段的内容。 分析分组的一个或多个字段的内容以检测未经授权的信标设备。 分析操作可以包括将分组的一个或多个字段的内容与包含用于授权信标设备的一个或多个标识符的列表进行比较。 在另一种形式中，分析可以包括利用与广告内容或广告源相关联的模式信息来分析分组的一个或多个字段的内容。

公开(公告)号：US08971443B2

公开(公告)日：2015-03-03

申请号：US13780598

申请日：2013-02-28

Applicant: Cisco Technology, Inc.

Inventor： John Blosco ,  James Friedmann ,  Greg Corsetto

IPC: H04L27/00 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0691 ,  H04B7/0413 ,  H04B7/0671

Abstract: Techniques are presented to reduce the number of antennas used for a transmission for a given antenna configuration and data rate. At a wireless communication device having a plurality of antennas and capable of sending a transmission via one or more of the plurality of antennas, a determination is made of a data rate and antenna configuration to be used for a transmission. A comparison is made between a total transmit power for a minimum number of antennas for the data rate to be used for the transmission and a total transmit power associated with the antenna configuration for the transmission. When the total transmit power for a minimum number of antennas for the data rate is greater than the total transmit power associated with the antenna configuration for the transmission, the transmission is sent with the minimum number of antennas.

Abstract translation: 呈现技术以减少用于给定天线配置和数据速率的传输的天线数量。 在具有多个天线并且能够经由多个天线中的一个或多个天线发送传输的无线通信设备中，确定要用于传输的数据速率和天线配置。 对于要用于传输的数据速率的最小数量天线的总发射功率和与用于传输的天线配置相关联的总发射功率进行比较。 当用于数据速率的最小数量的天线的总发射功率大于与用于传输的天线配置相关联的总发射功率时，以最小数量的天线发送传输。