Patent ID: 8755295

Claim:
A mobile communication device, comprising: a wireless module performing wireless transmissions and receptions to and from a service network; and a controller module, configured to be in a connected mode, receiving a measurement logging configuration message from the service network via the wireless module, starting a periodic logging timer in response to the measurement logging configuration message, and keeping the periodic logging timer running when leaving the connected mode, wherein the periodic logging timer is started at a first subframe of an ON duration of a Discontinuous Reception (DRX) cycle, wherein the controller module further determines, when configured to be in an idle mode, whether the periodic logging timer has expired during the ON duration of the DRX cycle, and wherein in response to the periodic logging timer expiring during the ON duration of the DRX cycle, a measurement logging operation is performed by the controller module, and in response to the periodic logging timer not expiring during the ON duration of the DRX cycle, the measurement logging operation is delayed until a next ON duration of the DRX cycle.