| 摘要 |
<p>A RAKE receiver apparatus and receiving method for realizing an efficient path assignment to a finger in a CDMA mobile communication system. A correlation value calculating unit (2) calculates, in all the timings that allow RAKE receptions, a correlation value between a received signal inputted from an input terminal (1) and a spread code and outputs the calculated correlation value to a delay profile producing unit (3) and to a difference history producing unit (6). The delay profile producing unit (3) calculates and notifies, as a delay profile, an averaged correlation value to a path selector unit (4). The difference history producing unit (6) compares, in each reception timing, the latest correlation value notified by the correlation value calculating unit (2) with the preceding correlation value held by the difference history producing unit (6) to produce and notify a difference history to the path selector unit (4). The path selector unit (4) sorts the delay profiles in decreasing order of the averaged correlation values, and assigns, if a delay profile and a difference history meet all of predetermined requirements, the reception timing to a finger, then notifying the reception timing to a finger unit (5).</p> |
