User:Magick777/Opportunistic Power Saving

Opportunistic Power Saving

Maintain phone in GSM mode by default when on battery

Design goals

  • 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
Retrieved from "http://bugs.maemo.org/User:Magick777/Opportunistic_Power_Saving"