name: 3G-SGSN
full_form: 3rd Generation SGSN
context: The RNC provides the NAS Node Selection Function. The NAS Node Selection Function derives from the NRI the address of the specific CN node for the relevant domain (CS or PS). The association between NRI values and CN node addresses is configured in the RNC (O&M). The RNC routes the initial NAS signalling messages according to the NRI and the "domain indicator" (CS or PS) to the relevant CN node if a CN node address is configured in the RNC for the specific NRI and the requested domain (CS or PS). If no CN node address is configured in the RNC for the requested NRI or if the provided identity contains no NRI then the RNC routes the initial NAS signalling message to a CN node selected from the available CN nodes which serve the related domain (CS or PS). The selection mechanism is implementation dependent and should preferably balance the signalling load between the available CN nodes.
description: The 3rd Generation Serving GPRS Support Node (3G-SGSN) is a network element responsible for managing packet data transmissions between mobile devices and the core network in 3G networks. It plays a crucial role in handling mobility management, session establishment, and security functions to ensure seamless communication.
explanation: The context describes the 3G-SGSN's responsibilities in managing connections, mobility, and sessions within a 3G network. These are core functions of a Network Function within the telecommunications architecture.
section_title: 6.1.1.2.2	Target acquiring UE context from the source HNB
biotag_Context: O,B-Network Function,O,O,B-Protocol,O,O,O,O,B-Network Function,I-Network Function,I-Network Function,I-Network Function,O,O,O,B-Parameter,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,B-Parameter,O,O,B-Network,O,O,O,O,O,O,B-Network Function,O,O,B-Network Function,O,O,O,B-Protocol,O,O,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,B-Network,O,O,O,O,O,O,B-Network Function,O,O,O,B-Parameter,O,O,O,O,O,O,O,O,O,B-Network,O,O,O,O,O,O,B-Network Function,O,O,O,B-Parameter,O,O,O,O,O,O,O,B-Parameter,O,O,B-Network Function,O,O,O,B-Protocol,O,O,O,O,B-Network,O,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Network,O
biotag_Description: O,B-Technology,I-Technology,B-Network Function,I-Network Function,I-Network Function,I-Network Function,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,B-Technology,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O