| 摘要 |
Apparatus for use in a wireless network has a fast clock for operation in an active wakeup mode and a sleep clock for operation in a sleep mode. A calibration for the sleep clock is calculated based on the fast clock. A quality value for that new calibration is determined. If the quality value of the new calibration is higher than a quality value of an old calibration, the new calibration is used, and, if not, the new calibration is discarded and the old calibration is used. Alternatively or in addition, the length of time until the next calibration is estimated. It is then determined whether the new calibration is of sufficient quality to last for the estimated time until next calibration, and, if not, the calibration measurement period is extended. |
