http://www.xda-developers.com/android/control-your-ps3-with-blueputdroid-for-android/
It is clearly possible to send signals from your phone to your PS3. It may require root access on your phone to "trick" your ps3 to thinking it's talking to the correct kind of device. The default device type of your phone is likely not the correct interface for the PS3, and you will need to tweak this information. In order to do so requires root access, or at least it use to last time I was playing around with such things, which I believe was in 4.1....