Yeah so Erica spoke about an application we developed when studying the Fast Dormancy and RRC states.
In order to experiment and understand all about FD, we had to developer a new tool also allowing to enable/disable Fast Dormancy on several Samsung phones, and apply changes in real times, including when tuning Fast Dormancy timers.
Requiring root depending on the device itself, its main purpose it to help you analyze if the network you're using supports fast dormancy or not, then allow you to set reasonable settings providing satisfying battery performance while keeping the network latency low.
Be sure you watch Erica's video as she will explain the technical challenges behind 3G power management better than I could.
Today's application is very simple:
It provides an easy access to the useful Samsung proprietary ServiceMode page displaying RRC states and also advanced network SNRs.
Download preview app from Google Play
Voodoo RRC Tool source code on github
Note: the app kind of suck and as you'll notice it benefits from no UI design at all yet
Contributions are indeed welcome.
Automatize the FD detection process in order to help you telling us which kind of network behavior you experience with your carrier.
With fast dormancy carrier database, recommending automatically optimal settings.
Add support to enable/disable and choose Fast Dormancy timers on non-Samsung phones.
Reverse-engineered Service Mode in order to build statistics of RRC state used, maybe to guess automatically if a network supports FD or not.
I'll probably not go this far but it might be interesting to develop this, not only on Samsung phones but on many more.
Once again contributions will be welcome here too.
I hope you'll like this joined XDA TV & development effort, which aims to investigate a topic, share knowledge and provide tools for everyone's benefit.
Hopefully its only the first collaboration among many. I'd like to encourage other developers as well to consider XDA TV as an extension of everything we're doing here, and interact with videos producers.