If I open a datagram socket to listen on a particular UDP port and leave it open but don't send anything, does that keep the radio on?
If a listening socket doesn't keep the radio on, then an application could send a couple packets to register it's IP and port and then shut up and wait for incoming requests. Thoughts? On Wed, Nov 26, 2008 at 5:43 PM, Mark Murphy <[EMAIL PROTECTED]> wrote: > >> And the radio is necessarily always on. > > Yeah, but... > > I was under the impression that, in normal operating mode, the GSM radio > is in a low-power state. That's why you have "talk time" versus "standby > time" in mobile device battery life specs -- when a call begins, the radio > stays in a high-power-draw state until the call ends. > > So, the question is: with an open-but-quiet Internet connection on a > carrier data network, how much power draw is there from the GSM radio? > > There's also the scenario of the device being on WiFi instead of GSM, but > that's probably not as frequent. > > -- > Mark Murphy (a Commons Guy) > http://commonsware.com > _The Busy Coder's Guide to Android Development_ Version 1.4 Published! > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
