| 摘要 |
A mobile communications apparatus (10) monitors (26) the power level of its internal battery (24) power supply, and reports (46) the measured power information on a periodic basis to a serving network. These reports are preferably made during the course of an ongoing call communications utilizing an uplink communications channel (112). The reported power information is stored by the network. In response to a subsequent detection (142) of an instance of a call drop with respect to that mobile communications apparatus, the stored reported power information is retrieved (144) and processed (146) to determine whether failure of the battery for the mobile communications apparatus is a likely cause of the call drop. If such is the determination, that fact is noted (148) in association with recording the instance of the call drop as the drop cause. |
