| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve initial synchronization even if another calling mobile station apparatus is present near an own mobile station apparatus in a CDMA/ TDD system. SOLUTION: A correlation operation section 230 carries out a correlation operation using a synchronous code, and creates a delay profile. The delay profile is inputted to a judgment section 250 via a power calculation section 240, and it is judged whether reception power (a correlation value) in the delay profile exceeds a threshold or not. In this case, when the reception power exceeds the threshold, it is judged whether time over the threshold in a measurement section exceeds fixed ratio or not. As a result, when the time over the threshold exceeds the fixed ratio, it is judged that the section is not a channel for synchronization, and an AGC gain value is calculated other than the section that has not been judged to be the channel for synchronization.</p> |
