TUNING THE FINGERS OF A RAKE RECEIVER

摘要

Path delays experienced by a received signal are estimated for use in, for example, a RAKE receiver. This involves hypothesising a plurality of path delays. For each of a plurality of measurement time slots and for each of the hypothesised path delays, a measurement based on the received signal is made along with a determination of whether a fade occurred. For each of the plurality of measurement time slots and for each of the hypothesised path delays, the measurement is combined with a corresponding one of a plurality of cumulative metrics only if it was determined that no fade occurred. Then, for each of the plurality of hypothesised path delays, the corresponding one of the plurality of cumulative metrics is used to determine whether the hypothesised path delay corresponds to a real path delay.