发明申请
- 专利标题： METHOD AND APPARATUS FOR DETERMINING LOCATION OF A COMMUNICATION DEVICE
- 专利标题（中）： 用于确定通信设备的位置的方法和装置
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申请号： US12335031申请日： 2008-12-15
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公开(公告)号： US20100151886A1公开(公告)日： 2010-06-17
- 发明人: CHARLES B. SWOPE , ARMANDO J. GONZALEZ , CHARLES R. RUELKE
- 申请人： CHARLES B. SWOPE , ARMANDO J. GONZALEZ , CHARLES R. RUELKE
- 申请人地址： US IL Schaumburg
- 专利权人： MOTOROLA, INC.
- 当前专利权人： MOTOROLA, INC.
- 当前专利权人地址： US IL Schaumburg
- 主分类号： H04W64/00
- IPC分类号： H04W64/00
摘要：
A reference device determines its distance from a communication device by first using a training process to determine a calibrated time delay for the communication device when the communication device is at a known distance from the reference device, wherein the calibrated time delay comprises a steady state internal processing delay for the communication device. Subsequently, when the reference device is at an unknown distance from the communication device, the reference device determines the unknown distance using the previously determined calibrated time delay.