My bet is on this having something to do with BMW assist communicating with its network so that it can update with the vehicle location, check to see if it needs to download any destination you've sent to it via google maps, and whatever else.
2014 M6 Convertible Citrin Black/Champagne - 6MT, Carbon Ceramic Brakes, Exec, B&O, Night Vision, Driver Assist
2013 750i Mineral White
2011 750i Jet Black
2007 750i Monaco Blue