| 摘要 |
<p>A method of operating a receiver preferably a cellular phone according to the CDMA or W-CDMA standard, comprising the steps of: receiving a sequence of pilot symbols with a timing indicator from a base station; and synchronizing a clock to the timing indicator by correlation of the sequence of pilot symbols with a corresponding, stored sequence of symbols, estimation of a time lag, and adjustment of the timing of the receiver with the lag. The method is characterized in that the calculation of the correlation is limited to be within an interval of time lags, where the interval is set in response to phase or frequency of the clock or a condition affecting the phase or frequency. Thereby the computational effort in setting a timing reference is reduced.</p> |
