| 摘要 |
<p>A Code Division Multiple Access (CDMA) reception method in a mobile terminal uses a spread spectrum to realize communication, performs a search of arrived radiowaves that detects radiowaves of propagation paths having different delay times, and uses RAKE combining to combine received signals from radiowaves of different propagation paths. The reception state of the received signals is detected, and when the reception state meets a prescribed condition, the range of delay time in which a search of arrived radiowaves is performed is modified. In a case in which the fading pitch is used as the amount of fluctuation of the received electric field, for example, the reciprocal of the fading pitch is compared with a prescribed threshold value, or the speed of movement of the mobile terminal is first calculated from the fading pitch and this speed of movement is compared with a threshold value, and when the threshold value is smaller, a peak search is performed only in the vicinities of peaks found in the preceding search. <IMAGE></p> |
