| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a mobile communication system that enables both a transmission station and a reception station to secure stable reception quality, even in a high-speed movement environment. <P>SOLUTION: A phase error detector 506 of a base station device 100 detects a phase error due to a Doppler shift of a received wave from a mobile station device 200. A phase rotator 1 rotates the phase of a transmission symbol in a base band region to cancel a Doppler shift caused on a downlink from the base station device 100 to the mobile station device 200, based upon the phase error detected by the phase error detector 506. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
