Evolution of Positioning Techniques in Cellular Networks, from 2G to 4G

Table 1

Frozen 3GPP releases from 1997 to 2013.

Release	Spec. version number	Freeze date
Rel-11	11.w.u	June 2013
Rel-10 (LTE-Advanced)	10.w.u	June 2011
Rel-9	9.w.u	December 2009
Rel-8; (LTE)	8.w.u	December 2008
Rel-7	7.w.u	December 2007
Rel-6; (HSUPA)	6.w.w	March 2005
Rel-5; (HSDPA)	5.w.u	June 2002
Rel-4	4.w.u	March 2001
R99; (UMTS/EDGE)	8.w.u (GERAN); 3.w.u (UTRAN)	March 2000
R98	7.w.u	Early 1999
R97; (GPRS)	6.w.u	Early 1998
R96	5.w.u	Early 1997