37.571-2: Universal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA) and Evolved Packet Core (EPC); User Equipment (UE) conformance specification for UE positioning; Part 2: Protocol conformance

Info Page @ 3GPP
Rel-12
v12.5.0
v12.0.0
Rel-11
v11.1.0
v11.0.0
Rel-10
v10.10.0
v10.9.0
Rel-9
v9.3.0