name: 3G-MSC
full_form: 3rd Generation MSC
context: NAS Node Selection (IDNNS) [2] in the Access Stratum part of the [RRC] INITIAL DIRECT TRANSFER message to the RAN node (RNC or BSC). The IDNNS contains a routing parameter with a fixed length of 10 bits. This routing parameter transports the NRI value. In addition the IDNNS contains an indication from which identity (TMSI, IMSI, IMEI, ...) the routing parameter is derived.
description: The 3rd Generation MSC (3G-MSC) is a Core Network node that interacts with the UTRAN (Universal Terrestrial Radio Access Network) through the Iu interface. It is one of the types of Core Network nodes that benefit from the commonality of protocols and functional split between UTRAN and the Core Network.
explanation: The text describes the 3G-MSC as a "Core Network node" that performs specific functions within the network, interacting with another network element (UTRAN). This classification aligns with the definition of a Network Function as a component performing a specific task within a telecommunications system.
section_title: 4.2	Iu Interface General Principles
biotag_Context: B-Protocol,O,O,O,O,O,O,B-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,O,O,B-Procedure,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O
biotag_Description: O,B-Network Function,I-Network Function,I-Network Function,O,O,O,B-Network,I-Network,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,B-Interface,O,O,O,O,O,O,O,O,B-Network,I-Network,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O