The MME signals the S-GW and P-GW to create a "Default Bearer," which provides the user with an "always-on" IP connectivity.
The interface between the LTE network and external packet data networks (like the Internet). It handles IP address allocation, policy enforcement, and charging. The MME signals the S-GW and P-GW to
When a mobile device powers on, it must register with the network to receive services. When a mobile device powers on, it must
This flow occurs when a user moves from one eNodeB to another where there is no direct X2 interface between them. The UE sends a
If a user needs an additional service (like a specific APN for Work or IMS for VoLTE), a secondary PDN connection is established. The UE sends a . The MME validates the request with the HSS and PCRF.
Once the UE arrives at the new cell, the MME tells the S-GW to switch the user plane path to the target eNodeB. 3. UE-Requested PDN Connectivity