RANAP meaning in Telecommunication ?

Answer: What is Radio Access Network Application Part mean?

In telecommunications networks, RANAP (Radio Access Network Application Part) is a protocol specified by 3GPP in TS 25.413and used in UMTS for signaling between the Core Network, which can be a MSC or SGSN, and the UTRAN. RANAP is carried over Iu-interface.

RANAP signalling protocol resides in the control plane of Radio network layer of Iu interface in the UMTS (Universal Mobile Telecommunication System) protocol stack. Iu interface is the interface between RNC (Radio Network Controller) and CN (Core Network). nb. For Iu-ps transport RANAP is carried on SCTP if IP interface used on this.

RANAP handles signaling for the Iu-PS - RNC and 3G SGSN and Iu-CS - RNC and 3G MSC . It also provides the signaling channel to transparently pass messages between the User Equipment (UE) and the CN.

In LTE, RANAP has been replaced by S1AP.In SA (standalone) installations of 5G, S1AP will be replaced by NGAP.

reference

Full Form	Category
Radio Access Network Application Protocol	Computing
Ran Application Part	Computing
Radio Access Network Application Part	Telecommunication