Question: In a 5G System (5GS), how does a Set-Top Box (STB) typically obtain IPTV (Internet Protocol Television) service, considering the convergence of wireless and wireline access?
Option 1: Directly from the 5G Core Network (5GC) without any intermediary device.
Option 2: Via a Residential Gateway (RG), which can be either a 5G-RG or an FN-RG, connected to the 5GC.
Option 3: Through a dedicated IPTV server within the STB itself, bypassing external network connections.
Option 4: Exclusively via a Fiber Network Residential Gateway (FN-RG), with no support for 5G-RG.
Explanation: In the context of wireless and wireline convergence access support for the 5GS, IPTV services are delivered to a Set-Top Box (STB) through a managed IP-based network, ensuring required QoS/QoE. The specified pathway involves Residential Gateways (RGs), which can utilize either 5G (5G-RG) or other connectivity means (FN-RG), both of which connect to the 5G Core Network (5GC). This setup facilitates the support of IPTV services with the necessary security, interactivity, and reliability. Option 2 correctly identifies this pathway, highlighting the role of RGs in bridging STBs to the 5GC for IPTV service delivery.