The Radio Access Network Application Part manages the communication between the 3G Radio Network Controller, the 3G Serving GPRS Support Node and the 3G Mobile Switching Center.

Radio Access Network Application Part. A radio access network (RAN) signalling protocol that consists of mechanisms that handle all the procedures between the core network and radio access network.

RANAP (Radio Access Network Application Part) protocol is used in UMTS signaling between the Core Network, which can be a MSC or SGSN, and the UTRAN. RANAP is carried over Iu-interface.

RAN application part