Talk:Next steps

Database cleanup

• Clean measurements where LAC and CELLID has the value 2147483647
• Clean measurements where the position Latitude/Longitude is in example ~50 km (bigger as the maximal allowed value timing advance) outside the polygon from the country

(in example in france is a measurement from the german provider O2 100 km from the frontier germany)

• Clean measurements where the position latitude/longitude is in example ~50 km (bigger as the maximal allowed value timing advance)

away from the real position from the base station

Links:

Timing Advance:

http://de.wikipedia.org/wiki/Timing_Advance