ISO 21212:2008 provides protocols and parameters for long range, medium speed wireless communications in the ITS sector using second generation cellular communications.
Wherever practicable, ISO 21212:2008 has been developed by reference to suitable extant standards, adopted by selection. Required regional variations are provided.
Specifically, for ISO 21212:2008, extant 2G systems, as defined by various international and national standards, are adopted by reference.
Application-specific upper layers are not included in ISO 21212:2008, but will be driven by application standards (which may not be technology specific).