1. A mobile communications device comprising: a wireless transceiver, and a controller circuit connected to the transceiver, the controller circuit comprising: at least one timer configured to measure at least one mode trigger, a mode selector configured to transition among a plurality of support modes in response to the at least one mode trigger, each of the plurality of support modes corresponding to at least one task each associated with a task frequency, a context detection circuit configured to detect at least one context information, and a task frequency adaptation circuit configured to adapt the task frequency to an adjusted task frequency, responsive to detecting the at least one context information.