How do i connect my mobile to the ps3 with bluetooth?

Ok so i go to the xmb bar and go to Accessories and go to register bluetooth device but that’s only mice keyboard and headsets so that doesn’t work and ive tried to find the ps3 on my phone but that doesn’t work. Does anyone know how it would connect and work so i could use it as a head set or even send pics to it thx if u can help and if u find a site on what im tlking about plz send my psn is Leighton27 iv’e been searching for help for a while.
Are you sure u can use a usb cable to use as a mic and ps3 and my mobile both have bluetooth???