High resolution wireless indoor positioning system for legacy standards-based narrowband mobile radios
    3.
    发明授权
    High resolution wireless indoor positioning system for legacy standards-based narrowband mobile radios 有权
    高分辨率无线室内定位系统,用于传统基于标准的窄带移动无线电

    公开(公告)号:US09014172B2

    公开(公告)日:2015-04-21

    申请号:US13602451

    申请日:2012-09-04

    IPC分类号: H04J3/06 G01S5/02

    摘要: Two or more data packets transmitted through a wireless channel are received using a receiver device. The two or more data packets are a result of two or more transmissions that are made sequentially in time at different center frequencies in order to span a desired bandwidth. Each data packet of the two or more data packets is transmitted at a single center frequency. Time differences and/or carrier phase differences among the two or more transmissions are estimated. A time-of-arrival of one or more data packets of the two or more data packets is calculated using each data packet of the two or more data packets and one or more of the estimated time differences, the different center frequencies, and the estimated carrier phase differences.

    摘要翻译: 通过无线信道发送的两个或多个数据分组使用接收机设备接收。 两个或多个数据分组是在不同的中心频率上按时间顺序进行的两个或多个传输的结果,以便跨越期望的带宽。 两个或多个数据分组的每个数据分组以单个中心频率发送。 估计两个或更多个传输之间的时差和/或载波相位差。 使用两个或多个数据分组的每个数据分组来计算两个或多个数据分组的一个或多个数据分组的到达时间,并且估计的时间差,不同的中心频率和估计的 载波相位差。

    HIGH RESOLUTION WIRELESS INDOOR POSITIONING SYSTEM FOR LEGACY STANDARDS-BASED NARROWBAND MOBILE RADIOS
    4.
    发明申请
    HIGH RESOLUTION WIRELESS INDOOR POSITIONING SYSTEM FOR LEGACY STANDARDS-BASED NARROWBAND MOBILE RADIOS 失效
    高分辨率无线室内定位系统,用于基于标准的窄带移动无线电

    公开(公告)号:US20120120834A1

    公开(公告)日:2012-05-17

    申请号:US13355557

    申请日:2012-01-22

    IPC分类号: H04W24/00 H04L12/26

    摘要: Two or more data packets transmitted through a wireless channel are received using a receiver device. The two or more data packets are a result of two or more transmissions that are made sequentially in time at different center frequencies in order to span a desired bandwidth. Each data packet of the two or more data packets is transmitted at a single center frequency. Time differences and/or carrier phase differences among the two or more transmissions are estimated. A time-of-arrival of one or more data packets of the two or more data packets is calculated using each data packet of the two or more data packets and one or more of the estimated time differences, the different center frequencies, and the estimated carrier phase differences.

    摘要翻译: 通过无线信道发送的两个或多个数据分组使用接收机设备接收。 两个或多个数据分组是在不同的中心频率上按时间顺序进行的两个或多个传输的结果,以便跨越期望的带宽。 两个或多个数据分组的每个数据分组以单个中心频率发送。 估计两个或更多个传输之间的时差和/或载波相位差。 使用两个或多个数据分组的每个数据分组来计算两个或多个数据分组的一个或多个数据分组的到达时间,并且估计的时间差,不同的中心频率和估计的 载波相位差。

    SYSTEM AND METHOD FOR HIGH RESOLUTION INDOOR POSITIONING USING A NARROWBAND RF TRANSCEIVER
    5.
    发明申请
    SYSTEM AND METHOD FOR HIGH RESOLUTION INDOOR POSITIONING USING A NARROWBAND RF TRANSCEIVER 失效
    使用窄带RF收发器进行高分辨率室内定位的系统和方法

    公开(公告)号:US20120106380A1

    公开(公告)日:2012-05-03

    申请号:US13286649

    申请日:2011-11-01

    IPC分类号: H04W24/00 H04L12/26

    摘要: A sequence of two or more signals representing two or more data packets is transmitted through a wireless channel using a transmitter device. The two or more signals are a result of two or more transmissions that are made sequentially in time at different center frequencies in order to span a desired bandwidth. At least one of the two or more signals includes a physical layer preamble. The sequence of two or more signals is received using a receiver device. A time of arrival of one or more signals of the received sequence is calculated using one or more of the received sequence, the time differences among the two or more transmissions, the different center frequencies, information from the two or more data packets, and any carrier phase differences among the two or more transmissions using the receiver device.

    摘要翻译: 通过使用发射机设备的无线信道来发送表示两个或更多个数据分组的两个或更多个信号的序列。 两个或更多个信号是在不同的中心频率上按时间顺序进行的两个或多个传输的结果,以便跨越期望的带宽。 两个或更多个信号中的至少一个包括物理层前导码。 使用接收器装置接收两个或更多个信号的序列。 使用所接收的序列中的一个或多个,两个或多个传输之间的时间差,不同的中心频率,来自两个或多个数据分组的信息,以及任何 使用接收机设备的两个或更多个传输之间的载波相位差。

    System and method for high resolution indoor positioning using a narrowband RF transceiver
    8.
    发明授权
    System and method for high resolution indoor positioning using a narrowband RF transceiver 失效
    使用窄带RF收发器进行高分辨率室内定位的系统和方法

    公开(公告)号:US08179816B1

    公开(公告)日:2012-05-15

    申请号:US13286649

    申请日:2011-11-01

    IPC分类号: H04L1/00 H04L12/26 H04J4/00

    摘要: A sequence of two or more signals representing two or more data packets is transmitted through a wireless channel using a transmitter device. The two or more signals are a result of two or more transmissions that are made sequentially in time at different center frequencies in order to span a desired bandwidth. At least one of the two or more signals includes a physical layer preamble. The sequence of two or more signals is received using a receiver device. A time of arrival of one or more signals of the received sequence is calculated using one or more of the received sequence, the time differences among the two or more transmissions, the different center frequencies, information from the two or more data packets, and any carrier phase differences among the two or more transmissions using the receiver device.

    摘要翻译: 通过使用发射机设备的无线信道来发送表示两个或更多个数据分组的两个或更多个信号的序列。 两个或更多个信号是在不同的中心频率上按时间顺序进行的两个或多个传输的结果,以便跨越期望的带宽。 两个或更多个信号中的至少一个包括物理层前导码。 使用接收器装置接收两个或更多个信号的序列。 使用所接收的序列中的一个或多个,两个或多个传输之间的时间差,不同的中心频率,来自两个或多个数据分组的信息,以及任何 使用接收机设备的两个或更多个传输之间的载波相位差。

    System and method for antenna diversity using joint maximal ratio combining
    10.
    发明授权
    System and method for antenna diversity using joint maximal ratio combining 失效
    使用联合最大比组合的天线分集的系统和方法

    公开(公告)号:US06687492B1

    公开(公告)日:2004-02-03

    申请号:US10174728

    申请日:2002-06-19

    IPC分类号: H04B106

    摘要: A composite beamforming technique is provided wherein a first communication device has a plurality of antennas and the second communication has a plurality of antennas. When the first communication device transmits to the second communication device, the transmit signal is multiplied by a transmit weight vector for transmission by each the plurality of antennas and the transmit signals are received by the plurality of antennas at the second communication device. The second communication device determines the best receive weight vector for the its antennas, and from that vector, derives a suitable transmit weight vector for transmission on the plurality of antennas back to the first communication device. Several techniques are provided to determine the optimum transmit weight vector and receive weight vector for communication between the first and second communication devices so that there is effectively joint or composite beamforming between the communication devices.

    摘要翻译: 提供一种组合波束形成技术,其中第一通信设备具有多个天线,并且第二通信具有多个天线。 当第一通信设备向第二通信设备发送时,将发送信号乘以用于由多个天线中的每一个发送的发送权重向量,并且在第二通信设备处由多个天线接收发送信号。 第二通信设备确定其天线的最佳接收权重向量,并且从该向量导出用于在多个天线上发送回到第一通信设备的合适的发射权重向量。 提供了几种技术来确定用于第一和第二通信设备之间的通信的最佳发送权重向量和接收权重向量,使得在通信设备之间有效地进行联合或合成波束形成。