| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a RAKE receiver and a receiving method, which efficiently allocate a path to a finger in a CDMA mobile communication system. SOLUTION: A correlation value calculating part 2 calculates the correlation value of a reception signal and a diffusion code, which are inputted from an input terminal 1, at all timings which can be RAKE-received and outputs it to a delay profile generating part 3 and a differential history generating part 6. The delay profile generating part 3 calculates an average correlation value and informs a path selecting part 4 of it as a delay profile. The differential history generating part 6 compares the latest correlation value informed from the correlation value calculating part 2 with the previous correlation value which it itself keeps at every reception timing, obtains differential history and informs the path selecting part 4 of it. The path selecting part 4 rearranges the delay profiles in order from the largest average correlation value. When the delay profile and differential history satisfy a prescribed condition, the reception timing is allocated to the finger and it is informed to a finger part 5.</p> |
