| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable to decode transmission data correctly, even if processing time of power ratio calculation is reduced and transmission power of control data is different from the one of transmission data. SOLUTION: In a CDMA receiver, inverse spread units 24a and 24b inversely spread reception signals and demodulate control data signals and transmission data signals, and a channel estimation unit 24c derives a channel estimation value from pilot signals included in the inversely spread control data signals, and channel correction units 24d and 24e conduct channel correction for transmission signals and control data signals based on the channel estimation value, and a power ratio calculation unit 27 calculates the power of transmission signals and control data signals after channel correction to calculate the power ratio, and signal level change units 42 and 43 magnify the level of the signal of smaller power based on the power ratio, and decoding units 30 and 32 conduct decoding processing based on signals, of which level is changed at the signal level change unit.</p> |
