User:Magick777/Opportunistic Power Saving

Opportunistic Power Saving

Maintain phone in GSM mode by default when on battery

• Switch to GSM mode opportunistically when all seems to be quiet
  • trigger on phone locked
  • check for blockers
    • don't change anything if we're on a call
    • don't change anything if we're in the target radio mode
    • don't change anything if the user may still want 3G
    • don't change if we have blocker applications, connections or traffic
      • but blocker applications or traffic not applicable if we're on WiFi
  • cooling off period during which a device unlock cancels radio switch
  • perform final sanity checks
    • recheck that we're still not on a call after our cooling off period
  • then make the switch to GSM mode

• Switch to dual mode or explicit 3G when something requires it
  • trigger on events
    • launch browser
    • open e-mail account
    • launch other application
  • but test the following
    • don't change anything if we're on a voice call
    • don't change anything if we're already using WiFi
    • don't change anything if we're already in the target radio mode