Question: In a 3GPP-compliant network, when a User Equipment (UE) requests disconnection from one Packet Data Network (PDN), what entity generates the UE-requested PDN disconnection event?
Option 1: Serving Gateway (S-GW)
Option 2: Mobility Management Entity (MME)
Option 3: Home Subscriber Server (HSS)
Option 4: Packet Data Network Gateway (P-GW)
Explanation: The Mobility Management Entity (MME) is responsible for managing the mobility of User Equipment (UEs). When a UE requests disconnection from a PDN, the MME generates the UE-requested PDN disconnection event, crucial for lawful interception and network resource management, highlighting the MME's role in controlling and monitoring UE connections.