ETCP Core Network Architecture 3

Question 1

What is the function of the SMSF (Short Message Service Function) in Ericsson's 5G core?

Accepted Answer

Handles SMS delivery for 5G subscribers via the SBI

Answer

Manages NAS (Non-Access Stratum) mobility procedures

Answer

Provides inter-frequency handover for NR

Answer

Stores multimedia message content

Question 2

In Ericsson's dual-connectivity architecture (EN-DC), what does 'MN' refer to?

Accepted Answer

Master Node (typically the 4G eNB)

Answer

Mobile Node

Answer

Management Network

Answer

Multi-Numerology

Question 3

What does the term 'SBA' (Service-Based Architecture) mean in the context of Ericsson's 5GC design?

Accepted Answer

An architecture where NFs expose capabilities as services via standardized APIs

Answer

A hardware blade architecture for core nodes

Answer

A spectrum allocation methodology

Answer

A software build automation framework

Question 4

In Ericsson's 5G standalone (SA) architecture, how does the gNB connect to the 5GC?

Accepted Answer

Via the N2 (control) and N3 (user plane) interfaces to AMF and UPF respectively

Answer

Via the S1-U interface to the SGW

Answer

Via the X2 interface to the MME

Answer

Via the Iub interface to the RNC

Question 5

Which Ericsson 5GC component manages the subscriber's consent and data exposure to external applications?

Accepted Answer

NEF (Network Exposure Function)

Answer

NSSF

Answer

CHF

Answer

UDM

Question 6

What is the main difference between NSA (Non-Standalone) and SA (Standalone) 5G deployment modes?

Accepted Answer

NSA relies on 4G LTE as the anchor for control plane; SA uses a native 5G core for all functions

Answer

NSA uses only mmWave spectrum; SA uses sub-6 GHz only

Answer

NSA requires more base stations per km²

Answer

SA does not support voice services