| 摘要 |
<p>The invention relates to a method for compensating a clock operating error. The method can be applied to the compensation of an operating error found in transmission clocks at the base stations of a long-range paging system of any radio transmitter network. At certain intervals, the transmission clocks of base stations are synchronized either to each other or to a reference clock. During the course of synchronization, there is measured an oscillator operating error or a clock operating deviation, which is created during a period equal to the synchronizing interval. The clock frequency is obtained from the frequency of a high-frequency oscillator by dividing it with a constant. During the synchronizing interval, the oscillator frequency is adjusted by means of a controlled variable, such as voltage, based on the measurement of an oscillator operating error. Optionally, a clock phase is shifted by changing said dividing constant by one lower or higher for the duration of a single cycle of a transmission clock at certain correction intervals.</p> |
