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    • 2. 发明申请
    • DETECTION OF FALSIFIED WIRELESS ACCESS POINTS
    • 检测无线接入点
    • WO2010078578A3
    • 2010-10-07
    • PCT/US2010020114
    • 2010-01-05
    • QUALCOMM INCAGGARWAL ALOKHARDIE EDWARD THOMAS LINGHAMDAS SAUMITRA MOHANGUPTA RAJARSHINAGUIB AYMAN FAWZY
    • AGGARWAL ALOKHARDIE EDWARD THOMAS LINGHAMDAS SAUMITRA MOHANGUPTA RAJARSHINAGUIB AYMAN FAWZY
    • H04L29/06
    • H04W12/12H04L63/1466H04W24/08
    • Apparatuses and methods for detecting falsified wireless access points are presented. A method includes identifying a target wireless access point for validation and measuring a round trip time delay to the wireless access point. The method also includes determining an expected processing delay of the wireless access point, analyzing the measured round trip time delay and the expected processing delay, and validating the wireless access point based upon the analysis. An apparatus includes a wireless transceiver, a processing unit coupled to the wireless transceiver, and a memory coupled to the processing unit. The processing unit is configured to identify a target wireless access point for validation, measure a round trip time delay to the wireless access point, determine an expected processing delay of the wireless access point, analyze the measured round trip time delay and the expected processing delay, and validate the wireless access point based upon the analysis.
    • 提出了用于检测伪造的无线接入点的设备和方法。 一种方法包括识别用于验证的目标无线接入点并测量到无线接入点的往返时间延迟。 该方法还包括确定无线接入点的预期处理延迟,分析所测量的往返时间延迟和预期处理延迟,以及基于分析来验证无线接入点。 一种装置包括无线收发器,耦合到无线收发器的处理单元和耦合到处理单元的存储器。 处理单元被配置为识别用于验证的目标无线接入点,测量到无线接入点的往返时间延迟,确定无线接入点的预期处理延迟,分析所测量的往返时间延迟和预期处理延迟 ,并根据分析验证无线接入点。
    • 6. 发明申请
    • WIRELESS POSITION DETERMINATION USING ADJUSTED ROUND TRIP TIME MEASUREMENTS
    • 使用调整回合时间测量的无线位置确定
    • WO2010059934A3
    • 2010-08-12
    • PCT/US2009065319
    • 2009-11-20
    • QUALCOMM INCAGGARWAL ALOKNAGUIB AYMAN FAWZYSRIDHARA VINAYDAS SAUMITRA MOHAN
    • AGGARWAL ALOKNAGUIB AYMAN FAWZYSRIDHARA VINAYDAS SAUMITRA MOHAN
    • G01S5/02H04L12/28H04W64/00
    • G01S5/10G01S5/0205G01S5/14G01S13/765H04W24/00H04W64/00
    • One method for wirelessly determining a position of a mobile station includes measuring a round trip time (RTT) to a plurality of wireless access points, estimating a first distance to each wireless access point based upon the round trip time delay and an initial processing time associated with each wireless access point, estimating a second distance to each wireless access point based upon supplemental information, combining the first and second distance estimates to each wireless access point, and calculating the position based upon the combined distance estimates. Another method includes measuring a distance to each wireless access point based upon a wireless signal model, calculating a position of the mobile station based upon the measured distance, determining a computed distance to each wireless access point based upon the calculated position of the mobile station, updating the wireless signal model, and determining whether the wireless signal model has converged.
    • 用于无线地确定移动站的位置的一种方法包括测量到多个无线接入点的往返时间(RTT),基于往返时间延迟估计到每个无线接入点的第一距离和相关联的初始处理时间 利用每个无线接入点,基于补充信息估计到每个无线接入点的第二距离,将第一和第二距离估计合并到每个无线接入点,以及基于组合的距离估计来计算位置。 另一种方法包括基于无线信号模型来测量到每个无线接入点的距离,基于测量的距离来计算移动台的位置,基于计算出的移动台的位置确定到每个无线接入点的计算距离, 更新无线信号模型,以及确定无线信号模型是否收敛。