| 摘要 |
<P>PROBLEM TO BE SOLVED: To estimate the moving speed of a mobile station, in the mobile communication of a spectrum spread system. <P>SOLUTION: An input means 1 inputs a transmission power control command sent from a reception station, and a speed estimating means 4 detects a change in command, estimates the mobile speed of the reception station and outputs a control signal corresponding to the estimated moving speed. A receiving means 2 extracts the signal of the desired wave from a received signal, and a power combining means 3 generates desired wave power from the signal. A speed estimating means 4 estimates the moving speed of a corresponding broadcast station by using the desired wave power and outputs a control signal corresponding to the estimated moving speed. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
