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1. 发明授权

US06408186B1 Method of locating a mobile phone by measuring the distance between the phone and a base station in a cellular mobile telephone system 失效
标题翻译：通过测量蜂窝移动电话系统中的电话与基站之间的距离来定位移动电话的方法
公开(公告)号：US06408186B1
公开(公告)日：2002-06-18
申请号：US09488808
申请日：2000-01-21
申请人： Jee-Yeon Park , Pyeong-Hwan Wee
发明人： Jee-Yeon Park , Pyeong-Hwan Wee
IPC分类号： H04Q720
CPC分类号： H04W64/00 , G01S7/40 , G01S13/76
摘要： A method of measuring the distance between a mobile phone and a base station based on the round-trip delay (RTD) of a prescribed message transmitted from the base station to the mobile phone in a cellular mobile telephone system (CMTS), comprising the steps of calculating a mean error distance to adjust the distance between the base station and the mobile phone within the cell boundary of the base station, measuring the RTD between the base station and the mobile phone positioned at an arbitrary point within the cell, calculating the RTD distance between the base station and the mobile phone based on the RTD measurement by subtracting the mean error distance from the RTD distance.
摘要翻译：一种基于在蜂窝移动电话系统（CMTS）中从基站发送到移动电话的规定消息的往返延迟（RTD）来测量移动电话和基站之间的距离的方法，包括步骤计算平均误差距离以调整基站和移动电话之间在基站的小区边界内的距离，测量基站和位于小区内任意点的移动电话之间的RTD，计算RTD 通过从RTD距离减去平均误差距离，基于RTD测量，基站和移动电话之间的距离。

2. 发明授权

US06341223B1 Radio wave propagation prediction method using urban canyon model 有权
标题翻译：使用城市峡谷模型的无线电波传播预测方法
公开(公告)号：US06341223B1
公开(公告)日：2002-01-22
申请号：US09298047
申请日：1999-04-22
申请人： Jee-Yeon Park
发明人： Jee-Yeon Park
IPC分类号： H04Q736
CPC分类号： H04W16/18 , H04B17/309 , H04B17/3913
摘要： A method for predicting the characteristics of wave propagation in an urban canyon model considering the effect of polarization is disclosed. The method comprises the steps of: numbering a plurality of image antennas corresponding to reflections between transmitting and receiving antennas in an urban canyon; determining the propagation paths corresponding to the respective image antennas; computing the respective first reflection points of the propagation paths corresponding to the image antennas; computing the respective reflection electric field vectors of the propagation paths corresponding to the image antennas; and finding the total received power of the receiving antennas through the reflection electric field vectors of the propagation paths and the unit polarization vector of the receiving antenna. Accurate fading effects can be obtained by assuming a sufficiently large number of propagation pathways. The distribution of the receiving power can be obtained for a varying polarization of the receiving antenna.
摘要翻译：公开了一种考虑到极化影响的城市峡谷模型预测波浪传播特征的方法。该方法包括以下步骤：对与城市峡谷中的发射和接收天线之间的反射相对应的多个图像天线进行编号; 确定对应于各个图像天线的传播路径; 计算对应于图像天线的传播路径的各个第一反射点; 计算与图像天线对应的传播路径的各个反射电场矢量; 并通过传播路径的反射电场矢量和接收天线的单位极化矢量来求出接收天线的总接收功率。通过假设足够大的传播路径可以获得准确的衰落效应。可以获得接收天线的变化极化的接收功率的分布。

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